CN107912305A - One kind cold ground ventilating system of pigsty - Google Patents

Abstract

The invention discloses a ventilation system for a pig house in a cold region. The ventilation system for a pig house in a cold region includes a pig house and a ventilation system: the ventilation system includes an air inlet pipe and an air exhaust pipe. device, temperature control room, air inlet pipe, fresh air outlet, and guard plate; the exhaust pipe is composed of exhaust outlet 1, exhaust outlet 2, exhaust pipe 1, exhaust pipe 2, guide valve, heat conversion device, exhaust gas Composed of processing room and exhaust fan. The invention can effectively recover the lost heat of the pig house, and has the advantages of good thermal insulation, uniform ventilation, energy saving, and high exhaust gas removal efficiency of the pig house, thereby significantly improving the living environment of pigs and reducing environmental pollution at the same time.

Description

A ventilation system for pig houses in cold regions

technical field

The invention relates to the field of livestock and poultry breeding, and relates to a ventilation system for pig houses in cold regions.

Background technique

There is a large temperature difference between indoor and outdoor in pig houses in cold regions in winter. Maintaining suitable temperature and humidity in pig houses and reducing the concentration of harmful gases are extremely important technical means for pig breeding in cold regions. Existing pig houses in cold regions generally achieve heat preservation by sealing and installing heating equipment, and reduce humidity and harmful gas concentrations in pig houses by strengthening ventilation. They are contradictory. In actual production, one often loses sight of the other, and with the entry of cold air, it is bound to generate air flow in the house to form cold wind, which is easy to cause pigs to catch a cold.

Contents of the invention

The invention mainly solves the technical problem of ventilation in the existing pig houses in cold regions, thereby providing a ventilation system for pig houses in cold regions. The invention can reduce the heat loss generated by fermenting feces in the water soaked dung sewage ditch and the heat loss in the process of discharging waste gas.

Above-mentioned technical problem of the present invention is mainly solved by following technical scheme:

A ventilation system for a pig house in a cold region, the pig house ventilation system in a cold region includes a pig house and a ventilation system: the pig house is composed of an insulation layer, a feeding area, a blister dung drainage ditch, and a corridor, and the insulation layer and the feeding area are located above the ground , the blister ditch is located below the ground; there are skylights on the insulation layer, and there are several feeding units in the breeding area. Each feeding unit has an aisle and 1 to 2 rectangular group breeding pens. There are south windows and north windows on both sides of the pig house. The ventilation system includes an air inlet duct and an exhaust duct. The air inlet duct is successively composed of a fresh air fan, a heat conversion device, a temperature control room, an air inlet duct, a fresh air outlet, and a guard plate; Tuyere 2, exhaust pipe 1, exhaust pipe 2, guide valve, heat conversion device, waste gas treatment room, and exhaust fan.

As a further technical solution of the present invention, the blister dung sewage ditch is provided with a sealing device and an anti-odor device, and the side wall of the blister dung sewage ditch is provided with an air outlet one and an air outlet two in sequence, and the air outlet one is located above the sealing device It is connected with the first exhaust pipe, and the second exhaust port is located under the sealing device and connected with the second exhaust pipe. The first exhaust pipe and the second exhaust pipe are connected with the heat conversion device through the guide valve. Disconnect from the exhaust pipe 2 to discharge harmful gases in the house. Only when cleaning the manure on the sealing device, the pilot valve is turned to the exhaust pipe 2 before the sealing device is opened, and disconnect from the exhaust pipe 1 to discharge water bubbles and feces. Harmful gas in the ditch prevents harmful gas from entering the breeding area during the opening of the sealing device. After the sealing device is cleaned and closed again, the pilot valve is turned back to the first exhaust pipe and disconnected from the second exhaust pipe.

As a further technical solution of the present invention, the sealing device is in a normally closed state, and the harmful gas produced by the fermentation of feces is sealed in the blister ditch, and the sealing device is opened regularly through the automatic control system, and the newly generated feces on the sealing device Clean up into the blistered feces sewage ditch.

As a further technical solution of the present invention, the heat conversion device is located at the bottom of the water bubble manure sewage ditch, and is composed of a waste gas pipe and a fresh air pipe socket, the waste air pipe is located inside, and the new air pipe is located outside, and the fresh air pipe can recycle water bubble manure to discharge outwards The heat generated by the fermentation of manure in the ditch can be recycled inward to the heat emitted by the waste gas pipe.

As a further technical solution of the present invention, the waste gas treatment room is located on the north side of the pig house, and its height is equal to the lower edge of the north window, so as not to affect the opening of the window, and the treated gas is discharged through the exhaust fan.

As a further technical solution of the present invention, the fresh air fan is located in the air intake room on the south side of the pig house, and the fresh air fan sends air into the fresh air pipe in the heat conversion device, and the fresh air pipe guides the air into the temperature control room, and the temperature control room adjusts the air After reaching the temperature of the pig house, the air is sent into the air inlet pipe, and the air enters the pig house through the new air outlet.

As a further technical solution of the present invention, a protective plate is installed at the outlet of the fresh air outlet to adjust the wind direction and avoid the discomfort caused by the fresh air directly blowing on the pigs.

As a further technical solution of the present invention, the anti-odor device is composed of a hole body, a spring, and a baffle. The air in the pig house diffuses into the pig house. When the pilot valve turns to the exhaust pipe 2, due to the negative pressure in the water bubble manure sewage ditch, the spring stretches, and the gas separated from the baffle and the hole flows into the water bubble manure sewage ditch. Anti-odor purpose.

As a further technical solution of the present invention, the south window, north window, and skylight of the pig house are closed in winter, and are only opened as ventilation channels in summer when the temperature is relatively high.

Compared with the existing ventilation technology in cold areas, the present invention can effectively convert the heat loss of the pig house, reduce the diffusion of waste gas from the manure pit to the house, and has the advantages of good thermal insulation, uniform ventilation, energy saving, and high efficiency of exhaust gas removal in the pig house. The living environment has been significantly improved, while reducing environmental pollution.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment

Figure 1 is a side sectional view of the ventilation system of pig houses in cold regions.

Figure 2 is the top view of the ventilation system of the pig house feeding unit in cold regions.

Fig. 3 is a side sectional view of the heat recovery channel.

Fig. 4 is a front view of the anti-odor device.

Fig. 5 is a sectional view of the deodorizing device.

in,

1. Air intake chamber; 2. South window; 3. Fresh air outlet; 4. Shield; 5. Air intake pipe; 6. Insulation layer; 7. Breeding area; 8. Skylight; 9. Temperature control room; 10. Corridor ;11, north window; 12, exhaust gas treatment room; 13, exhaust fan; 14, exhaust pipe; 15, heat conversion device; 16, exhaust outlet one; 17, exhaust duct one; 18, exhaust outlet two; 19 2, Exhaust pipe two; 20, Blister excrement sewage ditch; 21 Fresh air pipe; 22, Guide valve; 23, Sealing device; 24, Ground; 25, Fresh fan; 26, Anti-odor device; Spring; 29, baffle; 30, feeding unit; 31, group breeding pigsty; 32, aisle.

Detailed ways

Referring to Figures 1 to 5, a pig house ventilation system in a cold region includes a pig house and a ventilation system: the pig house is composed of an insulation layer 6, a feeding area 7, a blister dung drainage ditch 20, and a corridor 10, an insulation layer 6, and a feeding area 7 Located above the ground 24, the water bubble excrement drainage ditch 20 is located below the ground 24, the insulation layer 6 is provided with a skylight 8, and the breeding area 7 is divided into several raising units 30, each raising unit 30 has an aisle 32 and 1 to 2 rectangular group pigs Column 31, there are south windows 2 and north windows 11 on both sides of the pig house; the ventilation system includes air intake ducts and exhaust ducts, and the air intake ducts are composed of fresh air blower 25, heat conversion device 15, temperature control room 9, and air intake duct in turn. 5. The fresh air outlet 3 and the protective plate 4 are composed; the exhaust duct is sequentially composed of the first exhaust outlet 16, the second exhaust outlet 18, the first exhaust pipe 17, the second exhaust pipe 19, the guide valve 22, the heat conversion device 15, the exhaust gas The processing room 12 and the exhaust fan 13 are composed.

As a further technical solution of the present invention, the blister ditch 20 is provided with a sealing device 23 and an anti-odor device 26, and the side wall of the blister ditch 20 is successively provided with an air outlet 16 and an air outlet 18. Port one 16 is located above the sealing device 23 and is connected to the exhaust pipe one 17, and the exhaust port two 18 is located below the sealing device 23 and is connected to the exhaust pipe two 19. The exhaust pipe one 17 and the exhaust pipe two 19 pass through the guide valve 22 and The heat conversion device 15 is connected, and the pilot valve 22 is often communicated with the exhaust pipe one 17 and disconnected with the exhaust pipe two 19 to discharge harmful gases in the house. Only when the manure on the sealing device 23 is cleaned, before the sealing device 23 is opened Pilot valve 22 is transferred to exhaust pipe two 19, and is disconnected with exhaust pipe one 17 to discharge harmful gases in the water bubble excrement drainage ditch 20 to prevent harmful gases from entering the breeding area 7. After the sealing device 23 is cleaned and closed again, the pilot valve 22 turns back to exhaust pipe one 17, disconnects with exhaust pipe two 19.

As a further technical solution of the present invention, the sealing device 23 is in a normally closed state, and the harmful gas produced by the fermentation of feces is sealed in the blister excrement sewage ditch 20, and the sealing device 23 is opened regularly, and the newly produced feces on the sealing device 23 Dirt is cleaned up in the blister excrement drain ditch 20.

As a further technical solution of the present invention, the heat conversion device 15 is located at the bottom of the blister ditch 20, and is composed of the exhaust pipe 14 and the fresh air pipe 21. The waste air pipe 14 is located inside, the fresh air pipe 21 is located outside, and the fresh air pipe 21 The heat produced by the fermentation of feces in the blister dung ditch 20 can be recovered outwardly, and the heat emitted by the waste gas pipe 14 can be recovered inwardly.

As a further technical solution of the present invention, the exhaust gas treatment room 12 is located on the north side of the pig house, and its height is equal to the lower edge of the north window, so that it does not affect the opening of the window. The treated gas is discharged through the exhaust fan 13.

As a further technical solution of the present invention, the fresh air blower 25 is located in the air intake chamber 1 on the south side of the pig house, and the fresh air blower 25 sends air into the fresh air duct 21 in the heat conversion device 15, and the fresh air duct 21 guides the air into the temperature control unit. Room 9, the temperature control room 9 adjusts the air to the pig house temperature and sends the air into the air inlet pipe 5, and the air enters the pig house through the fresh air outlet 3.

As a further technical solution of the present invention, a protective plate 4 is installed at the outlet end of the fresh air outlet 3 to adjust the wind direction, so as to prevent the fresh air from blowing directly on the pigs and causing discomfort.

As a further technical solution of the present invention, the anti-odor device 26 is composed of a hole body 27, a spring 28, and a baffle plate 29. The upper end of the hole body 27 is a cross frame structure, and the baffle plate 29 and the hole body 27 are normally closed under the action of the spring 28. state, to prevent the gas in the blister ditch 20 from diffusing into the pig house, when the pilot valve 22 turns to the exhaust pipe 2 19, due to the negative pressure generated in the blister ditch 20, the spring 28 stretches, and the baffle 29 and the hole body 27 separates, and gas flows in the water bubble excrement sewage ditch 20, plays deodorizing purpose with this.

As a further technical solution of the present invention, the south window 2, the north window 11, and the skylight 8 of the pig house are closed in winter, and are only opened as ventilation passages in summer when the temperature is higher.

Compared with the existing cold area ventilation technology, the present invention can effectively recover the lost heat of the pig house, reduce the diffusion of harmful gases into the house, and has the advantages of good thermal insulation, uniform ventilation, energy saving, and high efficiency of exhaust gas removal in the pig house, so that the pig's life can be improved. The living environment has been significantly improved, and the pollution to the environment has been reduced.

Claims (1)

1. A pig house ventilation system in a cold region, characterized in that, a pig house ventilation system in a cold region comprises a pig house and a ventilation system: a ventilation system air inlet duct and an exhaust duct, and the air inlet duct is successively composed of a fresh fan (25) , a heat conversion device (15), a temperature control room (9), an air inlet pipe (5), a fresh air outlet (3), and a guard plate (4); Outlet two (18), exhaust pipe one (17), exhaust pipe two (19), guide valve (22), heat conversion device (15), waste gas treatment room (12), exhaust fan (13); The feces sewage ditch (20) is provided with a sealing device (23) and an anti-odor device (26), and an air outlet one (16) and an air outlet two (18) are sequentially arranged on the side wall of the blister dung sewage ditch (20). , the first exhaust outlet (16) is located above the sealing device (23) and connected to the first exhaust pipe (17), the second exhaust outlet (18) is located below the sealing device (23) and connected to the second exhaust pipe (19), and the exhaust Air pipe one (17) and exhaust pipe two (19) are connected with heat conversion device (15) through guide valve (22); sealing device (23) is in a normally closed state, and is opened by manual or automatic timing, and sealing device ( 23) Clean up the newly produced feces into the blister ditch (20); the heat conversion device (15) is located at the bottom of the blister ditch (20), and is connected by the exhaust pipe (14) and the fresh air pipe (21) Composition, the waste gas pipe (14) is located inside, the fresh air pipe (21) is located outside; the waste gas treatment room (12) is located on the north side of the pig house, the height is equal to the lower edge of the north window, and it is advisable not to affect the opening of the window. The gas is discharged through the exhaust fan (13); the fresh air blower (25) is located in the air intake chamber (1) on the south side of the pig house, and blows air into the fresh air pipe (21) in the heat conversion device (15), and the fresh air pipe ( 21) Lead the air into the temperature control room (9), the temperature control room (9) adjusts the air to the temperature of the pig house, and then sends the air into the air inlet pipe (5), and the air enters the pig house through the fresh air outlet (3); (3) A protective plate (4) is installed at the outlet to adjust the wind direction; the anti-odor device (26) is composed of a hole (27), a spring (28), and a baffle (29), and the upper end of the hole (27) is a cross The frame structure, under the action of the spring (28), the baffle (29) and the hole (27) are in a normally closed state. Negative pressure is generated in 20), the spring (28) is stretched, and the gas separated from the baffle (29) and the hole body (27) flows into the blister ditch (20), thereby achieving the purpose of deodorization; the south window of the pig house (2) , the north window (11), and the skylight (8) are closed in winter, and are only opened as ventilation passages in the summer period when the temperature is higher.