Duct Style heat exchange system HESOX

Jet + mixed airflow organization according to aerodynamics.

According to the characteristics of fresh air sent by livestock houses in winter, Liangmo and China Agricultural University(Animal Science and Technology College - Livestock Engineering Research Office) jointly developed designed to solve the cattle, pig, chicken house problem of environmental protection and energy saving in the winter.

Unique heat exchange flow path design, heat exchange efficiency is over 70%,use the waste gas energy and fresh air energy exchange.The air supply duct adopts a fiber duct tapered design, and the air supply is more balanced.The airflow organization in the house is more reasonable,exhaust harmful gases such as carbon dioxide and ammonia.

1.can be custom a hot exchange system for raising pigs,cattles, chickens


2. the schematic diagram is as follows:



The core component of the HESOX system is a full heat exchange chamber. The dirty air discharged from the house and the fresh air sent in the room exchange temperature through the heat transfer pipe, thereby achieving the effect of both ventilation and indoor temperature stability.



3. what can bring to the customers:


Heat exchange energy-saving input-output ratio


Taking Hebei and Shandong as examples

Each pig house is fed with 1,000 fattening pigs. The fresh air volume is 17000m^3/h, the outside temperature is -10C°, and the required temperature is 18C°. To warm the outside air to the required temperature of 18C°.Need electric heating, need energy consumption 170KW/h

4. the product is special.






CFD simulation technology

CFD software is the abbreviation of Computational Fluid Dynamics software. It is a software specially used for flow field analysis, flow field calculation and flow field prediction. Through CFD software, it is possible to analyze and display the phenomenon that occurs in the flow field, predict performance in a relatively short period of time, and achieve optimal design effects by changing various parameters.

CFD is developed along with the development of computer technology and numerical computing technology. Simply saying, CFD is equivalent to "virtual" experimentation on a computer to simulate the actual fluid flow. The basic principle is to numerically solve the differential equations that control the fluid flow, and obtain the discrete distribution of the flow field of the fluid flow in the continuous region, so as to approximate simulate the fluid flow.

Edible fungi planting shelter

Chick hatchery fresh air system

The fresh air system of the Liangmo Chicken Incubation Hall is designed to respond to some temperture for the hatching of chickens and the sensitivity of the chickens to the wind speed. We use the fresh air heating unit + fabric cloth duct to ventilate the hatchery. The micropores on the fabric cloth ducts ensure that the newly hatched chicks have a comfortable environment and greatly increase the survival rate.



Liangmo Internet of Things System


MAXIMUS is a systematic solution for industrial aquaculture,developed by the R&D center in Montreal, Canada. Through long-term close cooperation with Canadian farm aquaculture producers, it has been well documented by its ability to significantly increase production efficiency, significantly optimize management, and is extremely safe and reliable.


Aximus, who not only leads the agricultural technology solution, has more than 25 years of experience in combining agriculture and information technology, but also:

    • Service with electronic circuit design, assembly and maintenance
      Provides world-leading, scalable and easy-to-use equipment
      Is an efficient, fast and flexible production management system
      Caring for animal welfare




Liangmo pregnancy pig house fresh air system

Liangmo developed a fresh air system for the needs of pregnant pigs. The system consists of a wet curtain air cooler, a fabric cloth duct and a special diaphragm. In the hot summer, the diaphragm is connected to the upper part of the air duct, and the cold air generated by the air cooler is sent to the pig house through the small hole at the lower end to achieve the purpose of cooling. In the winter, the diaphragm is connected to the lower part of the air duct, and the outdoor air does not pass the wet curtain of the air cooler is directly sent to the air duct cavity, and is sent from the upper end to the pig house to achieve the purpose of sending fresh air in winter.



Liangmo sow house cooling system

In order to solve the problem in cooling the sow house in summer, Liangmo developed a cooling system for the sow house. The system uses the method of air cooler + fabric cloth duct to process the cuff made by special technology to achieve the fixed point air supply. This not only ensures that the sow area can cool down, but also does not affect the normal development of the piglet near the sow.

Liangmo chicken house fresh air system

In response to the specific ventilation requirements of the chicken house, Liangmo developed a new style system for the chicken house. The combination of the fan and the fabric cloth duct can make the house ventilate evenly and effectively discharge harmful gases, ensuring a good growth environment for the chicken.

Yak house fresh air system

The LiangMo yak house fresh air system consists of a new wind fan unit and a fabric cloth duct. According to the actual situation of the site, the parameters such as the diameter of the duct and the hole size of the opening are calculated by the AFD software of Liangmo developed, which ensures that the air supply has no dead angle and does not have a negative impact on the growth and development of the yak.

Adult cow house cooling system

Liangmo adult cattle house cooling system, based on the characteristics of the adult cow house environment, using the system of air cooler + fabric cloth duct, by simulating the path of gas flow, by changing various parameters to achieve the best design effect, enhance the comfort of the adult cattle in the barn.

Yisheng shares chicken house ventilation project

Huanshan Group pig house old pig house renovation and cooling project

Zhengbang Group Fuyu Pig Farm Sends Fresh Air Project in Winter

LiangMo new wind provides winter fresh air solution for Tianzhao pig industry



In 2008, the company introduced 866 heads Duroc, Changbai and Dabai core group boar from Hylife company of Canada. At the same time, it introduced the genetic improvement technology and achievements of boar. Through continuous introduction of the latest development of genetic resources, continuously improved the frequency of the core group of superior gene of Tianzhao boar,sharing the genetic progress of the core population, ensures that the performance of Tianzhao pigs remains at the same level with their counterparts in North America.


Tianzhao Pig Industry based on the high-quality provenance and continuous improvement of genetic technology, has established a core and efficient management system , adhering to the management concept of “biological safety, pig-based, behavioral norms and accurate data”. It ensures that the pig quality and production efficiency of Tianzhao pig industry are at the leading level in the industry.


1) Structural features: large area, large span, steel structure workshop, and internal pig house equipments more.

2) Purpose: Winter fresh air

3) The purpose of new winds in winter: provide enough fresh air for pigs,reduce the humidity, water vapor and harmful gases carbon dioxide, ammonia, carbon monoxide in the house.

4) On-site pig house situation: pig house is divided into fattening house, pregnancy house, delivery room

5) Data can be collected at any time, and the temperature, humidity, ammonia and other parameters of each pig house can be recorded and transmitted remotely to help analyze the health of pigs.

Liangmo intelligent pig house environment control system

The system includes: equipment (positive pressure fan) + flexible fabric duct + sensor (temperature, humidity, ammonia) + mobile Internet of things automation control system

1. Calculation of fresh air volume in winter (equipment selection)

The equipment for low temperature in the northeastern winter is selected by Liangmo New Fan Group (using the heating hot water energy in the pig house for fresh air preheating)


Axial fans are selected in areas with high temperatures in winter in Sichuan


Boar house

Models

Blowing Rate m3/h

Wind pressure Pa

Motor Power KW

Dimensions

LM-T35-11-3.2

4000

200

0.18

LM-T35-11-5.6

10000

250

1.1

L450*H365

Nursery house

Models

Blowing Rate m3/h

Wind pressure Pa

Motor Power KW

Dimensions

LM-T35-11-3.2

6000

200

0.18

LM-T35-11-5.6

10000

250

1.1

L450*H365


2. Design and calculation of fiber fabric air supply system



1) Shape design of flexible fiber cloth duct system

According to the characteristics of the site, the space is abundant, the installation is simple, the economy and other factors are all adopted the circular flexible air duct. Circular duct are mainly used in open spaces and high-altitude buildings

2) Flexible fiber cloth duct system size design

Determine the diameter based on air volume and system inlet wind speed and space constraints

Parameters Table:

House type

Choose a new wind volumem^/h

Duct diametermm

Number of wind ducts per house

Boar

4000

400

11

Boar

10000

650

11

Nursery

6000

500

4

Nursery

10000

650

4

3) Design of air outlet mode of flexible fiber cloth duct system

Other pig houses adopt a small hole to uniformly out the wind Liangmo system. The airflow organization is based on the principle of air flow convection. The small hole air supply is sent to the target area at a certain wind speed for heat exchange to meet the air supply requirements. Suitable for areas with high requirements for heating and cooling .


Huiyuan Hulin Ecological Pasture Calf House Fresh Air Project

After the completion of the infrastructure, Hulin Zhenbaodao Ecological Agriculture Co., Ltd. will introduce 2000 New Zealand purebred high-quality dairy cows; import 1600 Australian purebred high-quality dairy cows, and the annual output of green raw milk will reach 34,000 tons or more,predict the annual sales income is 136 million RMB, and the annual average profit is 34 million RMB. More than 180 people can be resettled for local farmers. This effectively solves the problem of insufficient production of green raw milk in Wahaha Dairy Branch of Hulin City in the eastern border town. At the same time, it also greatly mobilized the enthusiasm of large-scale farming of green dairy cows in Hulin City in the eastern border town, and further promoted the agricultural and animal husbandry of Hulin City in the eastern border town to advance to improve quality and efficiency, and to scale up and standardize production of green dairy cows.

Excellent environment, broad prospects, Green Capital Hulin and Huiyuan hand in hand to write modern ecological civilization, hand in hand in the tide of scientific development, sail away! All employees of Hulin Zhenbaodao Ecological Agriculture Co., Ltd. are ready to work together to realize the “Great China Dream” of the large-scale and standardized production of green cows in border town!


Liangmo cattle house environment improvement-Jiangxi Gaoan Project

The production of beef cattle in China is mainly distributed in the four main producing areas, namely the northeast producing area, the central producing area, the northwest producing area and the southwest producing area. Among them, the beef cattle houses in the Central producing areas and Southwestern producing areas are mostly open and semi-open or a small number of window-type beef cattle houses, the fence structure of the cow house is poorly insulated, the ventilation mode of the cow house is natural ventilation, and the high temperature in the beef cattle house in Summer in the Central Plains area and the southwestern production area will affect the production performance of beef cattle, high humidity environment will aggravate the high temperatures impact for cattle.


China Agricultural University combines the actual conditions and regional characteristics of China's beef cattle farms, focusing on more effective methods and techniques for summer cooling of cattle houses. In 2013, the research team led by Professor Liu of China Agricultural University conducted experimental research in the cattle houses of Haozhou, Anhui, Gao'an,Anhui and Wuqing, Tianjin.
The project is ventilated and cooled by the evaporative water curtain fan and the Liangmo fabric cloth duct.

Project Introduction:

Span: 12.8m Length: 55m Height: 4m (house) 4.6m (roof)

Semi-open shed structure, the side wall of the shed is 2m high, and there are 9 corrals in the north and south of the house, a total of 18, each corral 6m*4m (length * width)
Feeding position width: 33cm   feeding pen: width 50cm depth 25cm.
Fan: 18000m3 / h    wind pressure output:200pa, fan air supply temperature is about 27.5 ° C

Project requirements:

This project requires replacement ventilation to ensure that the temperature below 1.5m in the barn is below 28°C, preferably not above 29°C, because the height of the cow's back is about 1.2m, and the back of the cow is 0.5m away from the ground when lying down, so it is 10cm away from the ground. The temperature should be as low as possible within the range of 10-120 cm. The temperature stratification height should be above 1.6m.

Project design:

The Liangmo cloth duct is infiltrated at the time of design and adopts a high-density small hole outflow method, and different small hole densities and diameters are used in different directions and positions. The cold air entering the house creates a cold air lake , and the hot air generated by the cow is discharged upward by the heat buoyancy.

Liangmo cattle house environment improvement-Tianjin Wuqing Project

The production of beef cattle in China is mainly distributed in the four main producing areas, namely the northeast producing area, the central producing area, the northwest producing area and the southwest producing area. Among them, the beef cattle houses in the Central producing areas and Southwestern producing areas are mostly open and semi-open or a small number of window-type beef cattle houses, the fence structure of the cow house is poorly insulated, the ventilation mode of the cow house is natural ventilation, and the high temperature in the beef cattle house in Summer in the Central Plains area and the southwestern production area will affect the production performance of beef cattle, high humidity environment will aggravate the high temperatures impact for cattle.

China Agricultural University combines the actual conditions and regional characteristics of China's beef cattle farms, focusing on more effective methods and techniques for summer cooling of cattle houses. In 2013, the research team led by Professor Liu of China Agricultural University conducted experimental research in the cattle houses of Haozhou, Anhui, Gao'an,Anhui and Wuqing, Tianjin.


Project Introduction

This project is the cooling study of cow house in Wuqing District, Tianjin. The project is ventilated and cooled by the Liangmo EFDS professional animal husbandry design system.
Air outlet mode: small hole jet
Duct height: 1.8m from the ground below the duct;

Project requirements

The wind speed of the lying plane (h=0.5m) is above 1m/s, and the wind speed of the standing plane (h=1.5m) is 3m/s;
The jet flow range of the side air vent, at least radiated to the length of the lying body of the cattle (l = 1.2m);

The distance between the side vents should be evenly delivered to the back of the cow.



Project Design
According to the purpose and range of air supply , the project adopts the small hole outlet mode. According to the top elevation and the regional function of the system, the end wind speed is 1.5m, the design wind speed is 3m/s, and the elevation is 0.5m. The wind speed is 1m/s. According to the determined regional air volume and system air volume, the number of systems is determined, and the length is determined according to the air supply area responsible for the single system.

Liangmo cattle house environment improvement - Anhui Haozhou project

In order to improve the environmental conditions of the open cattle barn in the south, China Agricultural University cooperated with Qingdao Liangmo Animal Husbandry Environment Control Co., Ltd. to adopt the wet curtain fan-fabric cloth duct system and adopt the mode of air duct fixed point air supply,send the cold air evenly to the cattle activity area is locally cooled. The project combines the actual conditions and geographical characteristics of beef breeding do the experimental research of national beef breeding test stations in Wuqing, Tianjin, Gao'an, Jiangxi and Haozhou,Anhui.

The project is cooled by the evaporative water curtain unit and the Liangmo cloth duct ventilation system.

Project requirements

At the height of the cow standing (1.3m from the ground), the wind speed is 2m/s or less than 2m/s, the height of the cow lying is 0.5m (0.5m from the ground), and the wind speed is about 0.8m/s. At a height of 0.3 m, the cold air radiation diameter is 1 m, and the 0.5 m height cold air radiation diameter is 1.7-2 m, and the three air-cooled radiation ranges of 0.5 m height intersect. And to ensure that the cold air maximum reaches the cow body surrounding and  the minimum heat exchange around.

Design

According to the local continental climate, the characteristics of summer sultry and the eastward trend of the cattle house, the open barn situation, the project uses a set of wet curtain fan-fabric cloth duct system at both ends, the fabric cloth duct length is 24.5m, diameter 0.8m, using a small hole to supply air to evenly reduce the temperature of the barn, help to alleviate the heat stress of cattle, and effectively accelerate the growth of cattle.


Modern animal husbandry pasture ventilation system engineering case

Established in 2005, Modern Dairy Group Co., Ltd. is a company specializing in dairy farming and milk production. Modern Animal Husbandry plans to complete the construction and operation of 30 million-scale farms by 2015. There are more than 260,000 dairy cows and more than 3,000 tons of high-quality milk per day. The pasture adopts the world's most advanced loose-type industrialized cattle raising method, which realizes automatic TMR feeding, automatic decontamination, automatic milking and automatic manure treatment, achieving the largest scale, the highest degree of automation, and the quality of dairy cows,most advanced operation and most scientifically feeding, five items are the high standard in domestic, is high standard specialized and large-scale dairy farming base.

Design:

Modern farmland construction fully considers China's national conditions, adopts the advanced closed-type thermostated barn in the United States, all cows are kept in a closed environment, and the pasture and Liangmo cloth duct cooperate with domestic advanced AFD design software to design ventilation according to the physiological needs of dairy cows. The air supply is more reasonable, the temperature control is more accurate, the temperature in the barn is controlled at 12-14 degrees, and the wind speed is even and comfortable, which not only ensures the normal growth and development of the cow, but also saves energy to achieve intensive farming.

Liangmo fabric cloth duct has low cost and repeated use, and the installation is simple and convenient, which greatly shortens the construction period of the pasture. The unique antibacterial properties of the fabric cloth duct minimize the spread of bacteria and prevent large-scale bacterial infections. At present, the Liangmo cloth duct has been put into use in the modern animal husbandry, and the farmland said that it is very satisfied with the effect of the ventilation system.

Helan Zhongdi Ecological Pasture Cow House New Wind Project

Helan Zhongdi Ecological Ranch Co., Ltd. Ningxia Helan Ranch is located in Helan County, Ningxia Hui Autonomous Region. Helan County is close to the upper reaches of the Yellow River and has an extensive network of irrigation canals. The local climate is mild and suitable for planting crops, so that we can stably obtain a large amount of corn silage supply as feed for dairy cows. Ningxia Helan Ranch is located away from local residential and industrial areas, reducing the risk of infection from livestock diseases. Ningxia Helan Ranch is located close to the local large-scale fresh fruit and vegetable plantation, creating a strong demand for processing manure from Ningxia Helan Ranch for organic fertilizer. A number of downstream dairy and food processors operate in or near Helan County, such as Yili, Mengniu, China Wang Wang Holdings Co., Ltd. and Ningxia Cezanne Dairy Co., Ltd.


Heilongjiang Zhongxing Animal Husbandry Cow House Fresh Air Supply Project

Huolongmen Ranch is a domestic super-large farmland invested by Heihe Zhongxing Animal Husbandry Co., Ltd., located in Huolongmen Town, Nenjiang County, with a scale of 14,000 cows. Construction began in April 2014 and the first batch of dairy cows was introduced in November. In 2014, the acceptance of 100 standard demonstration ranch projects in Heilongjiang Province was the first in the province.


The layout of the pasture adopts the most advanced design concept in the world. The construction standards are based on the construction specifications of the provincial modern dairy farm. The most scientific production technology in the world is adopted. The machinery and equipment will be purchased from well-known brands at home and abroad. The dairy cow was imported from Chile and NZ, the farm is equipped with 2 Afghan 84 rotary milking machines, using Affijin Ranch management software, automatic feeding center, cow automatic feeding system, Austria solid-liquid separation processing system, US manure Processing system, Shanghai Najie Power Control System.

The pasture planning is divided into four major areas: 1. The production management area includes comprehensive buildings and buildings related to production and operation; 2. The auxiliary production areas mainly include water supply, power supply, heating, maintenance, silage, and grass storage; 3.The production area mainly includes cowsheds, milking parlors, artificial insemination and laboratory buildings; 4. Manure treatment and sick animal isolation areas mainly include veterinary rooms, isolation barns, sick cattle treatment and manure storage and treatment facilities.

There are 9 departments in the pasture for feeding, breeding, veterinary, milking, cow, information, synthesis, equipment and cattle.

The dormitory is a 6-person room, 24 hours of hot water supply, internet access, reading room, activity room, billiards room, table tennis room, bathroom, laundry room and other facilities.

As of October 26, 2015, there are 180 employees in the ranch. The total number of cattle in the farm is 8,265. In 2015, the silage planting area was 1,700 hectares, and a total of 85,000 tons was acquired. Production began in September 2015. It is estimated that by the end of 2015, a total of 4,069 heads cow will be produced, and the total number of cattle will exceed 10,000. It is expected that milk production will reach 180 tons. It is estimated that by May 2016, the number of employees will increase to 300, and the total number of cattle will exceed 12,000.

The purpose of the positive pressure ventilation of the flexible fabric cloth duct is to exchange the clean air of the wilderness into the cow house through a special ventilation system to dilute and discharge the dirty air in the cow house. The positive pressure ventilation system is mainly composed of an intake fan and a long ventilation duct that is full of many vent holes. The intake fan is placed at the intake port of the house end, and the function is to exchange the clean air outside the house; the long ventilation duct is hung on the top of the cow house, and its length is almost equal to the vertical axis of the cow house. A plurality of venting holes are arranged to allow the cleaned outside air to escape evenly.

The basic working principle of the positive pressure ventilation system: the external clean air is exchanged by the intake fan, and the clean air is evenly released through a long ventilation duct which evenly arranges a plurality of venting holes through the entire cow house, thereby diluting and discharging dirty air inside.

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