A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses

Abstract

A dual-channel anti-icing waste heat recovery device for livestock and poultry houses includes a waste air duct, a fresh air supply air duct, a waste air chamber, an air valve, an air duct, and a heat exchange core. The two ends are respectively provided with waste air chamber 1 and waste air chamber 2, and the heat exchange core is arranged in the middle; the heat exchange core and the fan chamber and fresh air chamber respectively arranged on the horizontal sides constitute a horizontal fresh air heat exchange channel, and the channel 1 and channel 2 respectively arranged above and below constitute a vertical waste heat exchange channel; one end of channel 1 is connected to waste air chamber 1 through an upper air valve 1, and the other end is connected to waste air chamber 2 through an upper air valve 2; one end of channel 2 is connected to waste air chamber 1 through a lower air valve 1, and the other end is connected to waste air chamber 2 through a lower air valve 2; a supply fan is arranged in the fan room to connect to the fresh air supply air duct, and the fresh air chamber is connected to the atmospheric air inlet; the waste air duct is connected to waste air chamber 1, and an exhaust fan is arranged on the top of waste air chamber 2. The present invention has a small volume, avoids water accumulation and icing, and ensures efficient and safe operation of the heat recovery device.

Description

Technical Field

[0001] The invention relates to livestock and poultry breeding industry, and in particular provides a dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses. Background Art

[0002] At present, heat recovery equipment discharges exhaust gas through a single channel. When operating in an outdoor place with a temperature of minus 10 degrees Celsius, ice areas will form at the fresh air inlet and the exhaust gas discharge end, blocking the normal discharge of exhaust gas, thereby affecting the recovery efficiency or causing the heat recovery equipment to stop operating, posing a serious safety hazard to the farm.

[0003] The heat exchange core of the current heat recovery equipment uses PVC board for heat exchange, which has low efficiency and large heat exchange area. The finished product is very large, which brings inconvenience to installation and transportation. Due to the large volume, the flow resistance of the air supply and exhaust during the heat exchange process is very large. In order to ensure the air volume requirements in the livestock and poultry house, it can only be achieved by increasing the full pressure of the fan, which results in a large motor power, high energy consumption and energy waste.

[0004] In addition, in the existing technology, a dual-channel waste gas heat recovery device for livestock and poultry houses has a dual channel of the heat exchange core placed horizontally, which makes it difficult for water to come out, resulting in water accumulation and ice formation, which is not conducive to the smooth flow of the channel, reduces the heat exchange area of ​​the heat exchange core, and affects the recovery efficiency.

[0005] In view of the above problems, it is urgent to invent an anti-icing and low-energy exhaust gas heat recovery device for livestock and poultry houses to improve the exhaust gas heat recovery efficiency. Summary of the invention

[0006] The present invention provides a dual-channel anti-icing exhaust gas heat recovery device for livestock and poultry houses. One of its purposes is to solve the technical problems of ice areas formed at the fresh air inlet and the exhaust gas discharge end in a low-temperature environment, or water accumulation and ice blocking the exhaust gas channel; the second purpose is to solve the technical problems of low efficiency, large volume, high energy consumption, and inconvenient installation and transportation of a PVC board heat exchange core.

[0007] The technical solution of the present invention is as follows:

[0008] A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses, the recovery device comprises a waste gas duct 1, a fresh air supply duct 2, a waste gas chamber, a wind valve, an air duct, and a heat exchange core, characterized in that:

[0009] The exhaust chamber includes an exhaust chamber 1 3 and an exhaust chamber 2 4; the exhaust chamber 1 3 and the exhaust chamber 2 4 are respectively arranged at both ends of the recovery device, and the heat exchange core 23 is arranged in the middle; a fan chamber 8 is arranged on one side of the heat exchange core 23, and a fresh air chamber 7 is arranged on the other side, and they are connected through the transverse channel of the heat exchange core 23 to form a transverse fresh air heat exchange channel; a channel 1 51 is arranged above the heat exchange core 23, and a channel 2 61 is arranged below the heat exchange core 23, and they are connected in the up and down directions through the vertical channel of the heat exchange core 23 to form a vertical exhaust heat exchange channel;

[0010] One end of the channel 1 51 is connected to the exhaust chamber 1 3 through an upper air valve 1 11, and the other end is connected to the exhaust chamber 2 4 through an upper air valve 2 14; one end of the channel 2 61 is connected to the exhaust chamber 1 3 through a lower air valve 1 12, and the other end is connected to the exhaust chamber 2 4 through a lower air valve 2 13;

[0011] An air supply fan 21 is arranged in the fan chamber 8 and is connected to the fresh air supply duct 2, and the fresh air chamber 7 is connected to the atmospheric air inlet; the exhaust air duct 1 is connected to the exhaust chamber 1 3, and an exhaust fan 22 is arranged on the top of the exhaust chamber 2 4.

[0012] The air duct includes two air ducts, an upper exhaust gas duct 5 and a lower exhaust gas duct 6 .

[0013] The waste gas from the house enters the waste gas chamber 3 through the waste gas duct 1; after the upper air valve 11 and the lower air valve 2 13 are opened, the waste gas upper channel 5 is opened to introduce the waste gas from the house; the waste gas upper channel 5 is connected from the waste gas chamber 3 through the upper air valve 11 to the channel 1 51 as the inlet, passes through the vertical channel of the heat exchange core 23 in the middle and the vertical waste gas heat exchange channel with the channel 2 61 as the outlet, and then connects to the waste gas chamber 2 4 through the lower air valve 2 13, and is finally discharged into the air by the exhaust fan 22 at the top.

[0014] The waste gas from the house enters the waste gas chamber 3 through the waste gas duct 1; after the downwind valve 12 and the upwind valve 2 14 are opened, the waste gas lower channel 6 is opened to introduce the waste gas from the house; the waste gas lower channel 6 is connected from the waste gas chamber 3 through the downwind valve 12 to the channel 2 61 as the inlet, passes through the vertical channel of the heat exchange core 23 in the middle and the vertical waste gas heat exchange channel with the channel 1 51 as the outlet, and then connects to the waste gas chamber 2 4 through the upwind valve 2 14, and is finally discharged into the air by the exhaust fan 22 at the top.

[0015] The heat exchange core 23 is made of 0.1-0.2 mm thick hydrophilic aluminum foil material and electroplated with epoxy coating.

[0016] The fresh air chamber 7 is equipped with a filter.

[0017] The upper air valve 11 and the lower air valve 2 13 are interlocked with the lower air valve 12 and the upper air valve 2 14. When the upper air valve 11 and the lower air valve 2 13 are opened, the lower air valve 12 and the upper air valve 2 14 are closed; conversely, when the lower air valve 12 and the upper air valve 2 14 are opened, the upper air valve 11 and the lower air valve 2 13 are closed.

[0018] Adjacent to the channel 1 51 and the channel 2 61 , the upper air valve 11 is arranged above the exhaust chamber 1 3 , and the lower air valve 12 is arranged below the exhaust chamber 1 3 ; the upper air valve 2 14 is arranged above the exhaust chamber 2 4 , and the lower air valve 2 13 is arranged below the exhaust chamber 2 4 .

[0019] The exhaust chamber 1 3, the fan chamber 8, the heat exchange core 23, the fresh air chamber 7, and the exhaust chamber 2 4 are arranged in sequence along the horizontal direction; the channel 1 51 and the channel 2 61 are respectively located above and below the fan chamber 8, the heat exchange core 23, and the fresh air chamber 7.

[0020] The technical features of the present invention are as follows:

[0021] The present invention adopts a two-way dual-channel exhaust circulation, and the heat exchange core adopts a vertical exhaust gas heat exchange channel. When ice occurs, it can automatically switch to another channel. When the exhaust gas takes the path of the upper exhaust channel, it will freeze at the bottom of the heat exchange core; after switching to the lower exhaust channel, the exhaust gas will go upward and outward from the bottom of the heat exchange core. At this time, the exhaust gas has a high heat and can melt the ice at the bottom. Conversely, when the exhaust gas takes the path of the lower exhaust channel, it will freeze at the top of the heat exchange core. After switching to the upper exhaust channel, the exhaust gas will go downward and outward from the top of the heat exchange core. At this time, the exhaust gas has a high heat and can melt the ice at the top. In this way, the defrosting operation is automatically performed according to the set time cycle. Since the heat exchange core adopts a vertical exhaust gas heat exchange channel and no water is stored, the channel always remains unobstructed.

[0022] Effects of the Invention

[0023] The present invention adopts two-way dual-channel exhaust circulation, and the heat exchange core adopts a vertical exhaust gas heat exchange channel to avoid ice and water accumulation, ensuring the efficient and safe operation of the heat recovery device, and recycling the waste heat of the exhaust gas in the livestock and poultry house through the channel cycle. The exhaust gas heat recovery efficiency is high, which ensures the air quality in the livestock and poultry house. Since the heat exchange core of the aluminum foil material is small in size and wind resistance, the same air supply volume, the power consumption is reduced, and the breeding efficiency is higher. The heat exchange core adopts 0.1-0.2mm thick hydrophilic aluminum foil material and epoxy coating treatment, which greatly improves the product life and heat exchange efficiency and reduces the equipment volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the internal structure of the facade structure of the present invention,

[0025] Figure 2 is a top view schematic diagram of the present invention,

[0026] Figure 3 This is a schematic diagram of the exhaust gas path of the exhaust gas upper channel of the present invention,

[0027] Figure 4 This is a schematic diagram of the exhaust gas path of the exhaust gas lower channel of the present invention,

[0028] Figure 5 Based Figure 1 AA cross-sectional diagram of

[0029] Figure 6 Based Figure 1 BB cross-section diagram,

[0030] Figure 7 Based Figure 1 Schematic diagram of CC cross section,

[0031] Description of the accompanying drawings:

[0032] Exhaust air duct 1, fresh air supply air duct 2, exhaust chamber 1 3, exhaust chamber 2 4, exhaust upper channel 5, channel 1 51, exhaust lower channel 6, channel 2 61, fresh air chamber 7, fan chamber 8, upper air valve 1 11, lower air valve 1 12, lower air valve 2 13, upper air valve 2 14, supply air fan 21, exhaust fan 22, heat exchange core 23. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] See also Figure 1-4 As shown, a dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses of the present invention comprises a waste gas duct 1, a fresh air supply duct 2, a waste gas chamber, a wind valve, a wind duct, and a heat exchange core.

[0035] The exhaust chamber includes an exhaust chamber 1 3 and an exhaust chamber 2 4; the exhaust chamber 1 3 and the exhaust chamber 2 4 are respectively arranged at both ends of the recovery device, and the heat exchange core 23 is arranged in the middle; a fan chamber 8 is arranged on one side of the heat exchange core 23, and a fresh air chamber 7 is arranged on the other side, and they are connected through the horizontal channel of the heat exchange core 23 to form a horizontal fresh air heat exchange channel; a channel 1 51 is arranged above the heat exchange core 23, and a channel 2 61 is arranged below, and they are connected in the vertical direction through the vertical channel of the heat exchange core 23 to form a vertical exhaust heat exchange channel;

[0036] One end of the channel 1 51 is connected to the exhaust chamber 1 3 through an upper air valve 1 11, and the other end is connected to the exhaust chamber 2 4 through an upper air valve 2 14; one end of the channel 2 61 is connected to the exhaust chamber 1 3 through a lower air valve 1 12, and the other end is connected to the exhaust chamber 2 4 through a lower air valve 2 13;

[0037] An air supply fan 21 is arranged in the fan chamber 8 and is connected to the fresh air supply duct 2, and the fresh air chamber 7 is connected to the atmospheric air inlet; the exhaust air duct 1 is connected to the exhaust chamber 1 3, and an exhaust fan 22 is arranged on the top of the exhaust chamber 2 4.

[0038] See also Figure 3 , 4 As shown, the air duct includes two air ducts, an upper exhaust gas duct 5 and a lower exhaust gas duct 6 .

[0039] The waste gas from the house enters the waste gas chamber 3 through the waste gas duct 1; after the upper air valve 11 and the lower air valve 2 13 are opened, the waste gas upper channel 5 is opened to introduce the waste gas from the house; the waste gas upper channel 5 is composed of the waste gas chamber 3 connected to the channel 1 51 as the inlet through the upper air valve 11, the vertical channel of the heat exchange core 23 in the middle and the channel 2 61 as the outlet of the vertical waste gas heat exchange channel, and then connected to the waste gas chamber 2 4 through the lower air valve 2 13, and finally discharged into the air by the exhaust fan 22 at the top.

[0040] The waste gas from the house enters the waste gas chamber 3 through the waste gas duct 1; after the downwind valve 12 and the upwind valve 2 14 are opened, the waste gas lower channel 6 is opened to introduce the waste gas from the house; the waste gas lower channel 6 is connected from the waste gas chamber 3 through the downwind valve 12 to the channel 2 61 as the inlet, passes through the vertical channel of the heat exchange core 23 in the middle and the channel 1 51 as the outlet of the vertical waste gas heat exchange channel, and then connects to the waste gas chamber 2 4 through the upwind valve 2 14, and is finally discharged into the air by the exhaust fan 22 at the top.

[0041] The heat exchange core 23 is made of 0.1-0.2 mm thick hydrophilic aluminum foil material and electroplated with epoxy coating.

[0042] The fresh air chamber 7 is equipped with a filter.

[0043] The upper air valve 11 and the lower air valve 2 13 are interlocked with the lower air valve 12 and the upper air valve 2 14. When the upper air valve 11 and the lower air valve 2 13 are opened, the lower air valve 12 and the upper air valve 2 14 are closed; conversely, when the lower air valve 12 and the upper air valve 2 14 are opened, the upper air valve 11 and the lower air valve 2 13 are closed.

[0044] Adjacent to the channel 1 51 and the channel 2 61 , the upper air valve 11 is arranged on the upper side wall of the exhaust chamber 1 3 , and the lower air valve 12 is arranged on the lower side wall; the upper air valve 2 14 is arranged on the upper side wall of the exhaust chamber 2 4 , and the lower air valve 2 13 is arranged on the lower side wall.

[0045] See also Figure 5 , 6 As shown in Figures 7 and 8, the exhaust chamber 1 3, the fan chamber 8, the heat exchange core 23, the fresh air chamber 7, and the exhaust chamber 2 4 are arranged in sequence along the horizontal direction; the channel 1 51 and the channel 2 61 are located above and below the fan chamber 8, the heat exchange core 23, and the fresh air chamber 7, respectively.

[0046] The heat exchange core 23 is a conventional structure, with vertical channels and horizontal channels, so that the two airflows are in positive cross flow, and the channels are completely separated and staggered and closed to facilitate heat exchange. A commercially available square cross-flow heat exchange core is preferred.

[0047] Example 1

[0048] like Figure 1 As shown, a dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses of the present invention adopts a dual-channel exhaust design for recycling to ensure efficient and safe operation of the heat recovery unit.

[0049] See also Figure 2 , 3 As shown, the recovery device is a box structure, with the exhaust chamber 1 3 and the exhaust chamber 2 4 respectively arranged at both ends, and the heat exchange core 23 arranged in the middle; a fan chamber 8 is arranged between the heat exchange core 23 and the exhaust chamber 1 3, and a fresh air chamber 7 is arranged between the heat exchange core 23 and the exhaust chamber 2 4, and the fan chamber 8 and the fresh air chamber 7 are connected through a transverse channel in the heat exchange core 23 to form a transverse fresh air heat exchange channel; a channel 1 51 is arranged above the heat exchange core 23, and a channel 2 61 is arranged below, and they are connected through the vertical channels in the upper and lower directions in the heat exchange core 23 to form a vertical exhaust heat exchange channel; see Figure 5-7 As shown, channel one 51 and channel two 61 are located between the fan chamber 8 and the exhaust chamber two 4 , and the fresh air chamber 7 , and the heat exchange core 23 and the fan chamber 8 are arranged above and below.

[0050] The heat exchange core 23 is made of 0.1-0.2 mm thick hydrophilic aluminum foil material and electroplated with epoxy coating, which greatly improves the service life and heat exchange efficiency of the equipment and reduces the size of the equipment.

[0051] The fresh air chamber 7 is equipped with a filter, which should be cleaned in time during use to ensure smooth flow of fresh air.

[0052] After the heating ends each year, the heat exchange core 23 needs to be thoroughly cleaned so that it can operate normally and efficiently in the next heating period.

[0053] The upper air valve 11 and the lower air valve 2 13 form a group, the lower air valve 12 and the upper air valve 2 14 form a group, and the two groups of air valves are in an interlocked state. When the upper air valve 11 and the lower air valve 2 13 are closed, the lower air valve 1 12 and the upper air valve 2 14 are in an open state.

[0054] Working principle:

[0055] See also Figure 3 As shown, the waste gas from the house enters the waste gas chamber 3 through the waste gas duct 1. If the system opens the waste gas upper channel 5, the upper air valve 11 and the lower air valve 2 13 are opened, and the waste gas in the house enters the channel 1 51 and the heat exchange core 23 from the waste gas chamber 3 through the upper air valve 11 for heat exchange, and after the heat exchange, enters the waste gas chamber 4 through the channel 2 61 and the lower air valve 2 13, and is finally discharged into the air by the exhaust fan 22.

[0056] See also Figure 4 As shown, if the system opens the exhaust gas lower channel 6, the lower air valve 12 and the upper air valve 2 14 are opened, and the exhaust gas in the house enters the channel 2 61 and the heat exchange core 23 from the exhaust gas chamber 3 through the lower air valve 12 for heat exchange, and after the exchange, enters the exhaust gas chamber 2 4 through the channel 1 51 and the upper air valve 2 14, and is finally discharged into the air by the exhaust fan 22.

[0057] Outdoor fresh air enters the heat exchange core from the fresh air chamber 7 for heat exchange, and the exchanged fresh air is transported into the house through the air supply fan 21 and the fresh air supply duct 2.

Claims

1. A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses, the recovery device comprises a waste gas duct, a fresh air supply duct, a waste gas chamber, a wind valve, an air duct, and a heat exchange core, characterized in that: The exhaust chamber comprises an exhaust chamber 1 (3) and an exhaust chamber 2 (4); the exhaust chamber 1 (3) and the exhaust chamber 2 (4) are respectively arranged at two ends of the recovery device, and the heat exchange core (23) is arranged in the middle; a fan chamber (8) is arranged on one side of the heat exchange core (23), and a fresh air chamber (7) is arranged on the other side, and they are connected through the lateral channel of the heat exchange core (23) to form a lateral fresh air heat exchange channel; a channel 1 (51) is arranged above the heat exchange core (23), and a channel 2 (61) is arranged below the heat exchange core (23), and they are connected in the up and down directions through the vertical channel of the heat exchange core (23) to form a vertical exhaust heat exchange channel; One end of the channel 1 (51) is connected to the exhaust chamber 1 (3) through an upper air valve 1 (11), and the other end is connected to the exhaust chamber 2 (4) through an upper air valve 2 (14); one end of the channel 2 (61) is connected to the exhaust chamber 1 (3) through a lower air valve 1 (12), and the other end is connected to the exhaust chamber 2 (4) through a lower air valve 2 (13); An air supply fan (21) is arranged in the fan room (8) and is connected to the fresh air supply duct (2); the fresh air room (7) is connected to an atmospheric air inlet; the exhaust air duct (1) is connected to the exhaust chamber one (3); an exhaust fan (22) is arranged on the top of the exhaust chamber two (4).

2. A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses as claimed in claim 1, characterized in that: The air duct comprises two air ducts, an upper exhaust gas duct (5) and a lower exhaust gas duct (6).

3. A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses as claimed in claim 2, characterized in that: The waste gas from the house enters the waste gas chamber 1 (3) through the waste gas duct (1); after the upper air valve 1 (11) and the lower air valve 2 (13) are opened, the waste gas upper channel (5) is opened to introduce the waste gas from the house; the waste gas upper channel (5) is connected from the waste gas chamber 1 (3) through the upper air valve 1 (11) to the vertical waste gas heat exchange channel with the channel 1 (51) as the inlet, passing through the vertical channel of the heat exchange core (23) in the middle and the channel 2 (61) as the outlet, and then connected to the waste gas chamber 2 (4) through the lower air valve 2 (13), and finally discharged into the air by the exhaust fan (22) at the top.

4. A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses as claimed in claim 2, characterized in that: The waste gas from the house enters the waste gas chamber one (3) through the waste gas duct (1); after the downwind valve one (12) and the upwind valve two (14) are opened, the waste gas lower channel (6) is opened to introduce the waste gas from the house; the waste gas lower channel (6) is connected from the waste gas chamber one (3) through the downwind valve one (12) to the vertical waste gas heat exchange channel with the channel two (61) as the inlet, passes through the vertical channel of the heat exchange core (23) in the middle and the channel one (51) as the outlet, and then connects to the waste gas chamber two (4) through the upwind valve two (14), and is finally discharged into the air by the exhaust fan (22) at the top.

5. The dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses according to claim 1, characterized in that: The heat exchange core (23) is made of 0.1-0.2 mm thick hydrophilic aluminum foil material and electroplated with epoxy coating.

6. A dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses as claimed in claim 1, characterized in that: The fresh air chamber (7) is equipped with a filter screen.

7. The dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses as claimed in claim 1, characterized in that: The upper air valve 1 (11) and the lower air valve 2 (13) are in an interlocked state with the lower air valve 1 (12) and the upper air valve 2 (14). When the upper air valve 1 (11) and the lower air valve 2 (13) are opened, the lower air valve 1 (12) and the upper air valve 2 (14) are closed; conversely, when the lower air valve 1 (12) and the upper air valve 2 (14) are opened, the upper air valve 1 (11) and the lower air valve 2 (13) are closed.

8. The dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses as claimed in claim 1, characterized in that: Adjacent to the channel one (51) and the channel two (61), the upper air valve one (11) is arranged above the exhaust chamber one (3), and the lower air valve one (12) is arranged below; the upper air valve two (14) is arranged above the exhaust chamber two (4), and the lower air valve two (13) is arranged below.

9. The dual-channel anti-icing waste gas heat recovery device for livestock and poultry houses according to claim 1, characterized in that: The exhaust chamber 1 (3), the fan chamber (8), the heat exchange core (23), the fresh air chamber (7), and the exhaust chamber 2 (4) are arranged in sequence in the transverse direction; the channel 1 (51) is located above the fan chamber (8), the heat exchange core (23), and the fresh air chamber (7); and the channel 2 (61) is located below the fan chamber (8), the heat exchange core (23), and the fresh air chamber (7).

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