Animal house heat recovery ventilation device
By using plate heat exchanger and wet curtain mechanism in the livestock ventilation system, heat recovery is achieved in winter preheating and cooling in summer, solving the problem of high energy consumption of the ventilation system, reducing breeding costs, and filtering through waste wind The net and sensor protection equipment keep the environment in the animal house comfortable.
Patent Information
- Application Number
- CN202420645528.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing livestock ventilation system consumes high energy when cooling in summer and preheating in winter, resulting in excessive ventilation costs and difficulty in effectively maintaining the temperature in the livestock.
A livestock heat recovery ventilation device is designed, using a plate heat exchanger and a wet curtain mechanism. By setting a fresh air chamber, a return air chamber and a air supply chamber in the heat exchanger box, and installing a plate heat exchanger between these chambers In winter, the dirty wind discharged from the livestock house will be exchanged with the fresh air that is about to be sent for preheating. In summer, the fresh air will be cooled through the wet curtain, and the plate heat exchanger will be used to transfer the heat to the exhausted dirty wind to cool down to avoid additional heaters. Use of
It reduces heat loss during ventilation, reduces energy consumption, and saves breeding costs. At the same time, the plate-type heat exchanger is protected through a waste air filter and disinfectant nozzle, extending its service life, and adjusting the fan speed through a temperature and humidity sensor. Keep the environment in the house comfortable.
Smart Images
Figure CN222148571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of animal husbandry equipment, in particular to a heat recovery ventilation device for a livestock house. Background Art
[0002] In the hot summer, the temperature in the barn needs to be cooled and ventilated. The existing cooling means usually adopts a wet curtain-fan negative pressure ventilation and cooling system, which sends fresh air cooled by the wet curtain into the barn and discharges the original gas in the barn to cool the barn. When the weather is cold in winter, the barn still needs to be ventilated. The temperature in the barn may drop below 10°C. The heat loss mainly comes from ventilation. In order to keep the temperature in the barn stable, the fresh air in the air supply duct needs to be preheated. The existing preheating means often use additional heating equipment such as air conditioners or heaters, which consumes a lot of energy and makes the ventilation cost too high. Utility Model Content
[0003] In order to solve the above problems, the purpose of the utility model is to provide a heat recovery ventilation device for a livestock house.
[0004] The utility model is implemented by the following method: a heat recovery ventilation device for a livestock house, comprising a plate heat exchanger and a wet curtain mechanism, the plate heat exchanger is provided with a first heat exchange channel and a second heat exchange channel which are independent of each other, and also comprises a heat exchange box, the heat exchange box is provided with a fresh air chamber, a return air chamber, a supply air chamber and an exhaust air chamber, a plate heat exchanger is provided in the heat exchange box between the fresh air chamber, the return air chamber, the supply air chamber and the exhaust air chamber, the fresh air chamber and the supply air chamber are connected by the first heat exchange channel, and the return air chamber and the exhaust air chamber are connected by the second heat exchange channel; a fresh air inlet is provided on the side of the fresh air chamber facing the outside of the heat exchange box, and the wet curtain mechanism is arranged at the fresh air inlet; the supply air chamber is provided with an air supply port connected to the livestock house, the return air chamber is provided with a dirty air inlet connected to the livestock house, and the exhaust air chamber is provided with an exhaust port connected to the outside of the livestock house.
[0005] Preferably, a dirty air filter is provided in the return air chamber, and the dirty air filter is provided between the inlet of the second heat exchange channel and the dirty air inlet.
[0006] Preferably, a disinfectant spray pipe is provided in the return air chamber, and the disinfectant spray pipe is arranged above the dirty air filter and is used for spraying disinfectant onto the dirty air filter, and the disinfectant spray pipe is connected to a disinfectant water tank.
[0007] Preferably, the disinfectant water tank is arranged at the bottom of the return air chamber and is located below the dirty air filter. The disinfectant water tank is used to store disinfectant, and the disinfectant water tank and the disinfectant nozzle are connected by a circulating water pump.
[0008] Preferably, the disinfectant water tank is connected to a water replenishment valve, and the water replenishment valve is connected to a disinfectant supply tank.
[0009] Preferably, the supply air chamber is arranged on the side of the top of the heat exchanger box close to the livestock house, and the exhaust air chamber is arranged on the side of the top of the heat exchanger box away from the livestock house; the return air chamber is arranged below the supply air chamber in the heat exchanger box, and the fresh air chamber is arranged below the exhaust air chamber in the heat exchanger box.
[0010] Preferably, observation windows are provided on the sides of the heat exchange box at positions opposite to the exhaust cavity and the air supply cavity.
[0011] Preferably, temperature and humidity sensors are provided in the air supply chamber and at the dirty air inlet, and an ammonia sensor is also provided at the dirty air inlet. The ammonia sensor and the temperature and humidity sensor are communicatively connected to a host computer.
[0012] Preferably, fans are provided at both the exhaust port and the air supply port, or the exhaust port and the air supply port are respectively connected to fans via pipelines; and the fans are communicatively connected to a host computer.
[0013] The beneficial effects of the utility model are as follows: the utility model provides a heat recovery ventilation device for a livestock house. Compared with the prior art, the utility model has at least the following technical effects: 1. By setting a heat exchange box, and arranging a fresh air chamber, a return air chamber, a supply air chamber and an exhaust air chamber in the heat exchange box, a plate heat exchanger is installed between these chambers. When the temperature is low in winter, it is used to exchange heat between the dirty air discharged from the livestock house and the fresh air to be sent into the livestock house, and preheat the fresh air. There is no need to set up additional heating devices for preheating, thereby reducing heat loss during ventilation and reducing the cost of ventilation. In summer, the fresh air outside the livestock house entering the fresh air chamber can be cooled by a wet curtain mechanism, and the indoor temperature in summer is usually lower than the outdoor temperature. Therefore, the heat can be transferred to the dirty air to be discharged through the plate heat exchanger to cool the fresh air sent into the livestock house again, so that the temperature inside the livestock house is more suitable. Compared with directly ventilating the livestock house, it can significantly reduce energy consumption and save breeding costs. 2. By installing a dirty air filter in the return air chamber, the dirty impurities in the gas discharged from the livestock house can be filtered to meet the emission standards and protect the plate heat exchanger. 3. A disinfectant nozzle is provided on the dirty air filter, which can be used to perform high-pressure spray cleaning and disinfection on the dirty air filter to prevent bacterial growth, so that the dirty air entering the plate heat exchanger is uneven, which plays a role in protecting the plate heat exchanger and extending its service life. 4. Temperature and humidity sensors are provided at the air supply chamber and the dirty air inlet, and an ammonia sensor is provided at the dirty air inlet, and fans are provided at the exhaust port and the air supply port, so that the upper computer can adjust the speed of the fan according to the temperature and humidity of the supply air and the temperature and humidity of the exhaust air, so that the ventilation volume is in a reasonable range to ensure a comfortable environment in the livestock house. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a heat recovery ventilation device for a livestock house.
[0015] Figure 2 The utility model is a three-dimensional structural schematic diagram of a heat recovery ventilation device for a livestock house.
[0016] Figure 3 It is a three-dimensional structural schematic diagram of a heat recovery ventilation device for a livestock house of the utility model from another perspective.
[0017] Explanation of the accompanying figures: 1. Plate heat exchanger; 2. Wet curtain mechanism; 3. Heat exchange box; 31. Fresh air chamber; 32. Return air chamber; 321. Dirty air inlet; 33. Supply air chamber; 331. Supply air outlet; 34. Exhaust air chamber; 341. Exhaust air outlet; 35. Observation window; 4. Dirty air filter; 5. Disinfectant spray nozzle; 6. Disinfectant water tank. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] See also Figures 1 to 3A heat recovery ventilation device for a livestock house, comprising a plate heat exchanger 1 and a wet curtain mechanism 2, wherein the plate heat exchanger 1 is provided with a first heat exchange channel and a second heat exchange channel which are independent of each other, and further comprising a heat exchange box 3, wherein a fresh air chamber 31, a return air chamber 32, a supply air chamber 33 and an exhaust air chamber 34 are provided in the heat exchange box 3, wherein a plate heat exchanger 1 is provided between the fresh air chamber 31, the return air chamber 32, the supply air chamber 33 and the exhaust air chamber 34, wherein the fresh air chamber 31 and the return air chamber 32 are provided with a plate heat exchanger 1, wherein the fresh air chamber 31 and the exhaust air chamber 34 are provided with a plate heat exchanger 1 ... supply air chamber 33 and the exhaust air chamber 34 are provided with a plate heat exchanger 1, wherein the fresh air chamber 31 and the return air chamber 32 and the supply air chamber 33 and the exhaust air chamber 34 are provided with a plate heat exchanger 1, wherein the fresh air chamber 31 and the supply air chamber 33 and the exhaust air chamber 34 are provided with a plate heat exchanger 1, wherein the fresh air chamber 31 and the supply air chamber 33 and the exhaust air chamber 34 are provided with a plate heat exchanger 1, wherein the fresh air chamber 31 and the supply air chamber 33 and the supply air chamber 33 and the supply air chamber 33 and the supply air chamber 34 are provided with a plate heat exchanger 1, wherein the fresh air chamber 31 and the supply air chamber 33 and the supply air chamber 33 and the supply The air supply chamber 33 is connected by the first heat exchange channel, and the return air chamber 32 and the exhaust chamber 34 are connected by the second heat exchange channel; the fresh air chamber 31 is provided with a fresh air inlet on the side facing the outside of the heat exchange box 3, and the wet curtain mechanism 2 is arranged at the fresh air inlet; the air supply chamber 33 is provided with an air supply port 331 connected to the livestock house, the return air chamber 32 is provided with a dirty air inlet 321 connected to the livestock house, and the exhaust chamber 34 is provided with an exhaust port 341 connected to the outside of the livestock house. By setting a heat exchange box 3, and setting a fresh air chamber 31, a return air chamber 32, a supply air chamber 33 and an exhaust air chamber 34 in the heat exchange box 3, and installing a plate heat exchanger 1 between these chambers, it is used to exchange heat between the dirty air discharged from the barn and the fresh air to be sent into the barn when the temperature is low in winter, and preheat the fresh air. No additional heating device is required for preheating, which reduces the heat loss during ventilation and reduces the cost of ventilation; in summer, the fresh air outside the barn entering the fresh air chamber 31 can be cooled by the wet curtain mechanism 2, and the indoor temperature in summer is usually lower than the outdoor temperature. Therefore, the plate heat exchanger 1 can transfer heat to the dirty air to be discharged, so as to cool the fresh air sent into the barn again, so that the temperature in the barn is more suitable; compared with directly ventilating the barn, it can significantly reduce energy consumption and save breeding costs. The supply air chamber and the fresh air chamber are separated from the return air chamber and the exhaust air chamber by the plate heat exchanger.
[0020] See also Figures 1 to 3 Preferably, a dirty air filter 4 is provided in the return air chamber 32, and the dirty air filter 4 is provided between the entrance of the second heat exchange channel and the dirty air inlet 321. By providing the dirty air filter 4 in the return air chamber 32, the dirty impurities in the gas discharged outside the livestock house can be filtered to meet the emission standards, and the plate heat exchanger 1 can also be protected.
[0021] See also Figures 1 to 3 Preferably, a disinfectant spray pipe 5 is provided in the return air chamber 32, and the disinfectant spray pipe 5 is provided above the dirty air filter 4, and is used to spray disinfectant onto the dirty air filter 4, and the disinfectant spray pipe 5 is connected to a disinfectant water tank 6. The disinfectant spray pipe 5 is provided on the dirty air filter 4, and the dirty air filter 4 can be cleaned and disinfected by high-pressure spraying to prevent bacterial growth, so that the dirty air entering the plate heat exchanger 1 is uneven, which plays a role in protecting the plate heat exchanger 1 and extending its service life.
[0022] See also Figures 1 to 3Preferably, the disinfectant water tank 6 is disposed at the bottom of the return air chamber 32 and is located below the dirty air filter 4. The disinfectant water tank 6 is used to store disinfectant, and the disinfectant water tank 6 is connected to the disinfectant spray pipe 5 by a circulating water pump. The disinfectant in the disinfectant water tank 6 is pumped out by the circulating water pump and sprayed onto the dirty air filter 4 by the disinfectant spray pipe 5 for disinfection.
[0023] See also Figures 1 to 3 Preferably, the disinfectant water tank 6 is connected to a water replenishment valve (not shown), and the water replenishment valve is connected to a disinfectant supply tank (not shown). After the disinfectant in the disinfectant water tank 6 is reduced or cleared, new disinfectant is replenished into the disinfectant water tank 6 in time.
[0024] See also Figures 1 to 3 Preferably, the air supply chamber 33 is arranged on the side of the top of the heat exchange box 3 close to the livestock house, and the exhaust chamber 34 is arranged on the side of the top of the heat exchange box 3 away from the livestock house; the return air chamber 32 is arranged below the air supply chamber 33 in the heat exchange box 3, and the fresh air chamber 31 is arranged below the exhaust chamber 34 in the heat exchange box 3.
[0025] See also Figures 1 to 3 Preferably, the side of the heat exchange box 3 is provided with an observation window 35 at a position opposite to the exhaust chamber 34 and the supply chamber 33, so as to facilitate viewing of the fresh air supply and dirty air exhaust.
[0026] See also Figures 1 to 3 Preferably, a temperature and humidity sensor (not shown) is provided in the air supply chamber 33 and at the dirty air inlet 321, and an ammonia sensor (not shown) is also provided at the dirty air inlet 321, and the ammonia sensor and the temperature and humidity sensor are communicatively connected to the host computer. The exhaust port 341 and the air supply port 331 are both provided with a fan (not shown), or the exhaust port 341 and the air supply port 331 are respectively connected to fans via pipes; the fan is communicatively connected to the host computer. The host computer is also communicatively connected to the wet curtain mechanism 2, the circulating water pump, the water supply valve, etc. The host computer can be a PLC controller, etc., but is not limited thereto. How to control the fan, the circulating water pump, the water supply valve, etc. according to the data of the relevant sensors adopts mature existing technologies, and no specific protection requirements are made. What the utility model requires to protect is a specific mechanical structure. The temperature and humidity and ammonia concentration in the livestock house can be measured by the temperature and humidity sensor and ammonia sensor in the return air chamber 32, while the temperature and humidity sensor in the supply air chamber 33 can detect the temperature and humidity of the fresh air supplied into the livestock house.
[0027] The utility model has the following working principle:
[0028] The dirty air is extracted from the livestock house by the operation of the fan at the exhaust port 341, and the fresh air is extracted from the outside into the livestock house by the operation of the fan at the air supply port 331. In this process, the fresh air entering the livestock house will first pass through the fresh air chamber 31, the first heat exchange channel of the plate heat exchanger 1 and the air supply chamber 33, and the dirty air discharged from the livestock house will pass through the return air chamber 32, the second heat exchange channel of the plate heat exchanger 1, and the exhaust chamber 34 in turn. The fresh air and the dirty air will exchange heat during the movement in the corresponding heat exchange channels in the plate heat exchanger 1.
[0029] When the temperature is high in summer, the wet curtain mechanism 2 at the fresh air inlet of the fresh air chamber 31 works to cool down the fresh air entering from the outside in advance, and then cools it down for the second time through the plate heat exchanger 1 (the indoor temperature in summer is lower than the outdoor temperature, so the temperature of the dirty air to be discharged is also lower than the fresh air. The heat of the fresh air can be transferred to the dirty air in the plate heat exchanger 1 to achieve secondary cooling); because the temperature of the fresh air is cooled down for the second time, the working power of the air conditioner and other equipment in the livestock house can be reduced, which can save energy. In this process, the dirty air sent in by the dirty air inlet 321 will be filtered by the dirty air filter 4 and then enter the second heat exchange channel of the plate heat exchanger 1, which can protect the heat exchanger, and the dirty air filter 4 will be sprayed with disinfectant to prevent bacteria from growing.
[0030] In winter, when the temperature is low, the wet curtain mechanism 2 does not work, and the fresh air directly enters the livestock house through the first heat exchange channel and the air supply chamber 33 of the plate heat exchanger 1, and the dirty air is discharged through the return air chamber 32, the second heat exchange channel, and the exhaust chamber 34. At this time, the indoor temperature is higher than the outdoor temperature. During the movement of the dirty air in the second heat exchange channel, the heat is transferred to the fresh air in the first heat exchange channel to achieve preheating of the fresh air, so that the heat discharged by ventilation can be recovered to achieve energy saving. In this process, the dirty air sent in by the dirty air inlet 321 will be filtered by the dirty air filter 4 and then enter the second heat exchange channel of the plate heat exchanger 1, which can protect the heat exchanger, and the dirty air filter 4 will be sprayed with disinfectant to prevent bacterial growth. The temperature and humidity and ammonia concentration in the livestock house can be measured by the temperature and humidity sensor and ammonia sensor in the return air chamber 32, and the temperature and humidity sensor in the air supply chamber 33 can detect the temperature and humidity of the fresh air delivered into the livestock house. The upper computer can adjust the speed of the fan at the air supply port 331 and the exhaust port 341 according to the temperature and humidity of the supply air and the temperature and humidity of the exhaust air to control the amount of fresh air supplied and the amount of polluted air discharged, so as to keep the ventilation volume within a reasonable range to ensure a comfortable environment in the livestock house.
[0031] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.
[0032] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0033] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.
[0034] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.
Claims
1. A heat recovery ventilation device for a livestock house, comprising a plate heat exchanger and a wet curtain mechanism, wherein the plate heat exchanger is provided with a first heat exchange channel and a second heat exchange channel which are independent of each other, Features: It also includes a heat exchange box, which is provided with a fresh air chamber, a return air chamber, a supply air chamber and an exhaust air chamber. A plate heat exchanger is provided in the heat exchange box between the fresh air chamber, the return air chamber, the supply air chamber and the exhaust air chamber. The fresh air chamber and the supply air chamber are connected by the first heat exchange channel, and the return air chamber and the exhaust air chamber are connected by the second heat exchange channel; a fresh air inlet is provided on the side of the fresh air chamber facing the outside of the heat exchange box, and the wet curtain mechanism is arranged at the fresh air inlet; the supply air chamber is provided with an air supply port connected to the animal house, the return air chamber is provided with a dirty air inlet connected to the inside of the animal house, and the exhaust air chamber is provided with an exhaust port connected to the outside of the animal house.
2. A heat recovery ventilation device for a livestock house according to claim 1, Features: A dirty air filter is provided in the return air chamber, and the dirty air filter is provided between the inlet of the second heat exchange channel and the dirty air inlet.
3. A heat recovery ventilation device for a livestock house according to claim 2, Features: A disinfectant spray pipe is arranged in the return air chamber, and the disinfectant spray pipe is arranged above the dirty air filter and is used for spraying disinfectant onto the dirty air filter. The disinfectant spray pipe is connected to a disinfectant water tank.
4. A heat recovery ventilation device for a livestock house according to claim 3, Features: The disinfectant water tank is arranged at the bottom of the return air chamber and is located below the dirty air filter. The disinfectant water tank is used to store disinfectant. The disinfectant water tank and the disinfectant spray pipe are connected by a circulating water pump.
5. A heat recovery ventilation device for a livestock house according to claim 4, Features: The disinfectant water tank is connected to a water replenishment valve, and the water replenishment valve is connected to a disinfectant supply tank.
6. A heat recovery ventilation device for a livestock house according to claim 1, Features: The air supply chamber is arranged on the side of the top of the heat exchange box close to the livestock house, and the exhaust chamber is arranged on the side of the top of the heat exchange box away from the livestock house; the return air chamber is arranged below the air supply chamber in the heat exchange box, and the fresh air chamber is arranged below the exhaust chamber in the heat exchange box.
7. A heat recovery ventilation device for a livestock house according to claim 1, Features: Observation windows are provided on the sides of the heat exchange box at positions opposite to the exhaust cavity and the air supply cavity.
8. A heat recovery ventilation device for a livestock house according to claim 1, Features: Temperature and humidity sensors are provided in the air supply chamber and at the polluted air inlet. An ammonia sensor is also provided at the polluted air inlet. The ammonia sensor and the temperature and humidity sensor are communicatively connected to a host computer.
9. A heat recovery ventilation device for a livestock house according to claim 8, Features: The exhaust port and the air supply port are both provided with fans, or the exhaust port and the air supply port are respectively connected to fans via pipelines; the fans are communicatively connected to a host computer.