A method and device for air conditioning in a livestock farm

Abstract

This invention discloses an air conditioning method and device for aquaculture farms, belonging to the technical field of aquaculture equipment. The method includes: uniformly arranged rectangular array of aquaculture racks inside the farm, each rack comprising multiple parallel partitions; a first pipe installed at the top of the farm, positioned between adjacent rows of racks, with multiple air inlets uniformly arranged on the first pipe between adjacent rows of racks; multiple horizontal second pipes sequentially installed on both side walls of the farm, positioned between adjacent partitions of the racks; the first and second pipes are internally connected; the second pipes have air outlets, the number of which corresponds to the number of racks in each row, facing the racks; the gas collected in the farm by the first pipes is collected and fed into an absorption tank, then transported back into the farm via the second pipes. This invention effectively reduces the amount of waste gas inside the farm and effectively regulates the temperature within the farm.

Description

Technical Field

[0001] This invention relates to the field of aquaculture equipment technology, specifically to an air conditioning method and device for aquaculture farms. Background Technology

[0002] Black soldier flies are saprophytic insects belonging to the family Stray Fly. Their larvae feed on decaying organic matter such as kitchen waste, animal feces, and animal and plant carcasses. They can efficiently convert food into their own nutrients and produce high-value insect protein feed. They have the advantages of rapid reproduction, large biomass, wide diet, high absorption and conversion rate, easy breeding and management, and low cost, making them of great application value in the treatment of kitchen waste.

[0003] Black soldier flies feed on fermented and decaying organic waste. During the artificial breeding of black soldier flies, their metabolism produces a large amount of waste gas and heat. On the one hand, the ammonia nitrogen and hydrogen sulfide compounds in the waste gas will produce an unpleasant odor in the breeding farm, deteriorating the breeding environment. High concentrations of waste are also detrimental to the survival of black soldier flies themselves. On the other hand, black soldier flies are mainly raised in ponds, boxes, and barrels at high densities. The heat generated by the aerobic respiration of the black soldier flies will raise the temperature in the breeding ponds / boxes. When the local temperature rises, the black soldier flies will scatter and escape.

[0004] In existing technologies, waste purification in aquaculture farms mainly relies on spraying. For example, CN 109090049 A discloses a black soldier fly aquaculture waste gas purification system. The purification system includes a first purification unit and a second purification unit. The first purification unit includes a water curtain, which is installed inside the aquaculture farm body and located between the farm body and the aquaculture rack. The second purification unit includes a spraying mechanism, which is installed on the top of the aquaculture farm body. The spraying device requires a large amount of water, resulting in high costs. It also has the following problems: 1. It is greatly affected by the seasons and is suitable for warm seasons; 2. The assembly, debugging, and maintenance costs of the spraying device are high; 3. The spraying device can cause excessive local humidity in the aquaculture farm. Summary of the Invention

[0005] In view of the above-mentioned technical deficiencies, the purpose of this invention is to provide an air conditioning method and device for aquaculture farms, so as to solve the shortcomings of existing spray devices.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an air conditioning method for aquaculture farms, characterized by comprising the following steps:

[0007] S1. Inside the breeding farm, breeding racks are evenly arranged in a rectangular array. Each breeding rack includes multiple parallel compartments, which increases the breeding space.

[0008] S2. A first pipe is installed at the top inside the breeding farm. The first pipe is located between two adjacent rows of breeding racks. Multiple air inlets are evenly arranged on the first pipe. The air inlets are located between two adjacent rows of breeding racks. The air inlets are used to collect the waste gas of the breeding farm.

[0009] S2. Multiple horizontal second pipes are sequentially installed on both sides of the breeding farm. The second pipes are located between two adjacent compartments of the breeding rack. The first pipe and the second pipe are internally connected. The second pipes are equipped with air outlets that are the same number as the number of breeding racks in each row and face the breeding rack. The air outlets are used to generate cooled air to reduce the temperature of the breeding rack and reduce the number of black soldier flies escaping from the breeding pond / box in the breeding rack.

[0010] S4. The gas collected in the farm through the first pipeline is fed into the absorption tank, and then transported back into the farm through the second pipeline. The absorption tank is used to absorb the waste gas. At the same time, the gas comes into contact with the liquid in the absorption tank as it passes through, which helps to cool the gas.

[0011] Preferably, in order to effectively remove the waste gas contained in the air of the farm and reduce the air temperature, the absorption tank includes a main absorption tank and a secondary absorption tank. The gas collected in the farm by the first pipe passes through the first liquid in the first absorption tank and the second liquid in the second absorption tank in sequence, and then returns to the farm through the second pipe. The bottoms of the main absorption tank and the secondary absorption tank are connected. Taking ammonia as an example, after the main absorption tank absorbs the ammonia, the ammonia concentration in the first liquid will gradually increase, and the absorption capacity of the main absorption tank will decrease. The continuous introduction of gas at a certain temperature in the farm will cause the ammonia that has been absorbed in the absorption tank to escape. Based on this, the second liquid in the secondary absorption tank is used to further reduce / regulate the temperature of the circulating air and increase the absorption capacity of the absorption tank. The first liquid and the second liquid can be water, sodium chloride aqueous solution, and other absorbents commonly used in the art, preferably water or sodium chloride aqueous solution.

[0012] Preferably, when the ammonia concentration of the first liquid reaches 9-20%, the first liquid is recovered, the second liquid is transported to the main absorption tank, and absorbent is added to the secondary absorption tank. The concentration of waste gas in the second liquid in the secondary absorption tank is always lower than that in the main absorption tank.

[0013] Based on the above solutions, another objective of the present invention is to provide an air conditioning device for a livestock farm, characterized in that it includes a livestock farm, a breeding rack, a first pipe, a second pipe, and an absorption tank. The livestock farm is provided with breeding racks arranged in a rectangular array. The breeding racks include multiple parallel partitions. The top of the livestock farm is provided with a first pipe, and multiple parallel second pipes are evenly arranged on both sides. A single first pipe is located between two adjacent rows of breeding racks, and a single second pipe is located between two adjacent partitions. Each first pipe has multiple air inlets located between two adjacent rows of breeding racks. The second pipes have multiple air outlets evenly arranged with the same number of rows as the breeding racks. An absorption tank connecting the first pipe and the second pipe is provided between the first pipe and the second pipe. An air pump is provided at the end of the first pipe near the absorption tank.

[0014] Preferably, the absorption tank is provided with an inlet pipe and an outlet pipe. The inlet pipe is provided with an electric regulating valve, a differential pressure balancing valve, a pressure gauge and a thermometer in sequence. The outlet pipe is provided with a concentration meter and a liquid filter in sequence.

[0015] Preferably, an outlet pipe is provided between the air pump and the absorption tank, connecting the air pump and the absorption tank, and the outlet pipe of the outlet pipe extends into the bottom of the absorption tank.

[0016] Preferably, the absorption tank includes a main absorption tank and a secondary absorption tank. A third pipe connecting the bottom of the main absorption tank and the top of the secondary absorption tank, and a fourth pipe connecting the bottom of the main absorption tank and the middle of the secondary absorption tank are provided between the main absorption tank and the secondary absorption tank. The liquid inlet pipe is connected to the secondary absorption tank, the liquid outlet pipe is connected to the main absorption tank, the air pump is connected to the main absorption tank, and the second pipe is connected to the secondary absorption tank.

[0017] Preferably, the aquaculture farm is equipped with an exchange pipe, which includes 2n spiral tubes arranged in a circumferential array. Each end of the exchange pipe is provided with a first connecting seat and a second connecting seat. The interior of the first connecting seat and the second connecting seat are respectively connected to the n spiral tubes, and the exterior of each is provided with a second connecting pipe penetrating the outer wall. The two ends of the exchange pipe are respectively connected to a first pipeline and an air pump through the second connecting pipe of the first connecting seat, and connected to a second pipeline and a secondary absorption tank through the second connecting pipe of the second connecting seat.

[0018] Preferably, the longitudinal section of both the first connecting seat and the second connecting seat is annular. The second connecting seat has 2n connecting holes arranged in a circular array that are connected to the spiral tube. The first connecting seat has a first connecting tube arranged in a circular array that passes through the connecting holes of the first connecting seat and communicates with the spiral tube. The first connecting seat and the second connecting seat each have S-shaped partitions that connect the inner and outer ring sides of the first connecting seat and the second connecting seat. The S-shaped partitions are centrally symmetrically distributed.

[0019] Preferably, the heat exchange tube is provided with a temperature control tube, the spiral tube is wrapped around the outer surface of the temperature control tube, the first connecting seat and the second connecting seat are sequentially sleeved on the temperature control tube, and an end cap is provided on the end face of the first connecting seat away from the second connecting seat.

[0020] The beneficial effects of this invention are as follows: 1. This invention recovers and enriches the waste gas from the farm, making full use of the waste and turning it into a valuable resource, which is conducive to environmental protection and resource utilization; 2. This invention effectively reduces the amount of waste gas inside the farm and can also effectively regulate the temperature inside the farm; 3. The overall device of this invention is simple, easy to assemble, and low in cost. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a side view of an apparatus for an air conditioning method in a livestock farm, as provided in an embodiment of the present invention.

[0023] Figure 2 This is a front view of an apparatus for an air conditioning method in a livestock farm, as provided in an embodiment of the present invention.

[0024] Figure 3 This is a top view of an apparatus for an air conditioning method in a livestock farm, as provided in an embodiment of the present invention.

[0025] Figure 4 A partial structural side view of an apparatus for an air conditioning method in a livestock farm, provided in another embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the exchange pipe of a device for an air conditioning method in a livestock farm, provided in an embodiment of the present invention.

[0027] Figure 6 An exploded view of the structure of the exchange pipe of a device for an air conditioning method in a livestock farm, provided in an embodiment of the present invention.

[0028] Figure 7 This is a front view of the first connecting seat structure of a device for an air conditioning method in a livestock farm, provided in an embodiment of the present invention.

[0029] Figure 8 This is a front view of the second connecting seat structure of a device for an air conditioning method in a livestock farm, provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached diagram: 1. Farm; 2. Farming rack; 21. Partition; 3. First pipe; 31. Air inlet; 4. Second pipe; 41. Air outlet; 5. Absorption tank; 51. Main absorption tank; 52. Secondary absorption tank; 53. Third pipe; 54. Fourth pipe; 55. Liquid inlet pipe; 551. Electric regulating valve; 552. Differential pressure balancing valve; 553. Pressure gauge; 554. Thermometer; 56. Liquid outlet pipe; 561. Concentration meter; 562. Liquid filter; 6. Air pump; 7. Air outlet pipe machine; 71. Air outlet pipe; 8. Exchange pipe; 81. First connecting seat; 811. Connecting hole; 812. First connecting pipe; 813. S-shaped partition; 814. Second connecting pipe; 815. End cap; 82. Second connecting seat; 83. Spiral tube; 84. Temperature control tube. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example: Figures 1 to 8 As shown, this invention provides an air conditioning device for aquaculture farms, including a farm 1, breeding racks 2, a first pipe 3, a second pipe 4, and an absorption tank 5. The farm 1 contains breeding racks 2 arranged in a rectangular array. Each breeding rack 2 includes multiple parallel partitions 21, which are box-shaped and used for breeding black soldier flies or other insects. The top of the farm 1 has a first pipe 3, and multiple parallel second pipes 4 are evenly distributed on both sides. A single first pipe 3 is located between two adjacent rows of breeding racks 2, and a single second pipe 4 is located between two adjacent partitions 21. The first pipes 3 are used to collect air from the farm 1. The first pipe 3 has multiple air inlets 31, which are located between two adjacent rows of breeding racks 2. The second pipe 4 has multiple air outlets 41, which are the same number as the number of rows of breeding racks 2. The first pipe 3 and the second pipe 4 are arranged in a triangular shape. The air blown out by the second pipe 4 is collected by the first pipe 3 at the top, which helps to fully disturb the air inside the breeding farm 1, promote air circulation, and lower the temperature. An absorption tank 5 is provided between the first pipe 3 and the second pipe 4 to connect the first pipe 3 and the second pipe 4. A vacuum pump 6 is provided at the end of the first pipe 3 near the absorption tank 5. The absorption tank 5 is used to absorb the waste gas.

[0033] Furthermore, the absorption tank 5 is equipped with an inlet pipe 55 and an outlet pipe 56. The inlet pipe 55 is equipped with an electric regulating valve 551, a differential pressure balancing valve 552, a pressure gauge 553 and a thermometer 554 in sequence. The outlet pipe 56 is equipped with a concentration meter 561 and a liquid filter 562 in sequence, which are used to monitor the liquid temperature and pressure inside the absorption tank 5. The concentration meter 561 is used to measure the concentration of the target substance / ammonia water inside the absorption tank 5.

[0034] Furthermore, an exhaust pipe 7 is provided between the exhaust pump 6 and the absorption tank 5, connecting the exhaust pump 6 and the absorption tank 5, and the exhaust pipe 71 of the exhaust pipe 7 extends into the bottom of the absorption tank 5.

[0035] Furthermore, the absorption tank 5 includes a main absorption tank 51 and a secondary absorption tank 52. A third pipe 53 connecting the bottom of the main absorption tank 51 and the top of the secondary absorption tank 52, and a fourth pipe 54 connecting the bottom of the main absorption tank 51 and the middle of the secondary absorption tank 52 are provided between the main absorption tank 51 and the secondary absorption tank 52. The liquid inlet pipe 55 is connected to the secondary absorption tank 52, the liquid outlet pipe 56 is connected to the main absorption tank 51, the air pump 6 is connected to the main absorption tank 51, and the second pipe 4 is connected to the secondary absorption tank 52. The waste gas collected through the first pipe 3 passes through the main absorption tank 51 and the secondary absorption tank 52 in sequence, which helps to reduce the concentration of waste gas in the air and helps to reduce the temperature of the air. The main absorption tank 51 and the secondary absorption tank 52 collect and enrich the ammonia nitrogen compounds in the air, which can be used as chemical raw materials.

[0036] Furthermore, the aquaculture farm 1 is equipped with an exchange pipe 8, which includes 2n spiral tubes 83 arranged in a circular array, where n = 3, 4, 5. A small number of spiral tubes 83 is not conducive to heat circulation, while an excessive number would increase the overall volume of the exchange pipe 8 or decrease the diameter of individual spiral tubes 83, which is also detrimental to heat exchange. Both ends of the exchange pipe 8 are equipped with a first connecting seat 81 and a second connecting seat 82. The interior of the first connecting seat 81 and the second connecting seat 82 are respectively connected to n spiral tubes 83, and the exterior of each is equipped with a second connecting pipe 814 penetrating the outer wall. Both ends of the exchange pipe 8 are connected to the first pipe 3 and the air pump 6 through the second connecting pipe 814 of the first connecting seat 81, and to the second pipe 4 and the secondary absorption tank 52 through the second connecting pipe 814 of the second connecting seat 82. Internal air / exhaust gas is enriched through the first pipe 3, passes through n spiral tubes 83 of the exchange pipe 8, enters the main absorption tank 51 through the air pump 6, then passes through the secondary absorption tank 52, and returns to the interior of the breeding farm 1 through the n spiral tubes 83 of the exchange pipe 8 and the second pipe 4. The air / exhaust gas and the gas after waste removal are located in two adjacent spiral tubes 83 of the exchange pipe 8, respectively. The gas flow direction in the two adjacent spiral tubes 83 is opposite. The air / exhaust gas and the gas after waste removal are in staggered contact in the two adjacent spiral tubes 83 of the exchange pipe 8. The heat in the air / exhaust gas is exchanged with the heat in the gas after waste removal, so that the temperature inside the breeding farm 1 drops gently. The cross-section of the spiral tube 83 can be fan-shaped, annular, circular, elliptical, etc. Only the circular shape is shown in the figure. The outer walls of the two adjacent spiral tubes 83 are in close contact with each other to promote heat exchange.

[0037] Furthermore, both the first connecting seat 81 and the second connecting seat 82 have annular longitudinal sections. The second connecting seat 82 has 2n connecting holes 811 arranged in a circular array, which connect to the spiral tube 83. The first connecting seat 81 has a first connecting tube 812 arranged in a circular array on the side near the second connecting seat 82, which passes through the connecting holes 811 on the second connecting seat 82 and communicates with the spiral tube 83. Both the first connecting seat 81 and the second connecting seat 82 have inner annular sides that connect the first connecting seat 81 and the second connecting seat 82. The S-shaped separators 813 on the outer ring side are centrally symmetrically distributed. The S-shaped separators 813 in the first connecting seat 81 and the second connecting seat 82 are oriented in opposite directions. Taking the first connecting seat 81 as an example, the gas / exhaust gas enters the first connecting seat 81 through the second connecting pipe 814. The gas / exhaust gas is blocked by the S-shaped separators 813 and swirls in the arc-shaped part of the S-shaped separators 813, thereby increasing the residence time in the first connecting seat 81. This helps the gas after waste removal in the second connecting seat 82 to come into contact and exchange heat.

[0038] Furthermore, a temperature control tube 84 is provided inside the exchange tube 8, and a spiral tube 83 is wrapped around the outer surface of the temperature control tube 84. The first connecting seat 81 and the second connecting seat 82 are sequentially sleeved on the temperature control tube 84. An end cap 815 is provided on the end face of the first connecting seat 81 away from the second connecting seat 82. The temperature control tube 84 is used to assist in regulating the gas temperature. Similarly, the outside of the exchange tube 8 may also include other heat preservation / temperature control devices or materials. The temperature control tube 84 is a commonly used device for temperature regulation in the art, which can be used to achieve temperature regulation, and will not be described in detail here.

[0039] In use, breeding racks 2 are evenly arranged in a rectangular array inside the breeding farm 1. A first pipe 3 is installed at the top inside the breeding farm 1, between two adjacent rows of breeding racks 2. Multiple horizontal second pipes 4 are sequentially installed on both side walls of the breeding farm 1. The first pipe 3 is connected to the main absorption tank 51 via an exchange pipe 8, an air pump 6, an exhaust pipe machine 7, and leads to the bottom of the main absorption tank 51. The second pipes 4 are connected to the secondary absorption tank 52 via the exchange pipe 8. The air / exhaust gas inside the breeding farm 1 is enriched through the first pipe 3, passes through n spiral tubes 83 of the exchange pipe 8, enters the main absorption tank 51 via the air pump 6, and then undergoes secondary absorption. The remaining n spiral tubes 83 of the exchange pipe 8 and the second pipe 4 return to the interior of the breeding farm 1 from pool 52. The air / exhaust gas and the gas after waste removal are located in two adjacent spiral tubes 83 of the exchange pipe 8, respectively. The gas flow direction in the two adjacent spiral tubes 83 is opposite. The air / exhaust gas and the gas after waste removal are in staggered contact in the two adjacent spiral tubes 83 of the exchange pipe 8. The heat in the air / exhaust gas is exchanged with the heat in the gas after waste removal, so that the temperature inside the breeding farm 1 is gently reduced. The main absorption pool 51 and the secondary absorption pool 52 collect and enrich the ammonia nitrogen compounds in the air, which flow out through the liquid outlet pipe 56 and are used as chemical raw materials / other raw materials.

[0040] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An air conditioning device for a livestock farm, characterized in that, The system includes a breeding farm (1), a breeding rack (2), a first pipe (3), a second pipe (4), and an absorption tank (5). The breeding farm (1) is provided with breeding racks (2) arranged in a rectangular array. The breeding racks (2) include multiple parallel partitions (21). The top of the breeding farm (1) is provided with a first pipe (3), and multiple parallel second pipes (4) are evenly provided on both sides. A single first pipe (3) is located between two adjacent rows of breeding racks (2), and a single second pipe (4) is located between two adjacent partitions (21). Each first pipe (3) is provided with multiple air inlets (31), which are located between two adjacent rows of breeding racks (2). The second pipes (4) are evenly provided with multiple air outlets (41) that are the same number as the number of rows of the breeding racks (2). An absorption tank (5) connecting the first pipe (3) and the second pipe (4) is provided between the first pipe (3) and the second pipe (4). A vacuum pump (6) is provided at the end of the first pipe (3) near the absorption tank (5). The breeding farm (1) is equipped with an exchange pipe (8), which includes 2n spiral pipes (83) arranged in a circular array. Both ends of the exchange pipe (8) are provided with a first connecting seat (81) and a second connecting seat (82). The first connecting seat (81) and the second connecting seat (82) are respectively connected to the n spiral pipes (83) inside, and are respectively provided with a second connecting pipe (814) penetrating the outer wall. Both ends of the exchange pipe (8) are respectively connected to the first pipe (3) and the air pump (6) through the second connecting pipe (814) of the first connecting seat (81), and are connected to the second pipe (4) and the secondary absorption tank (52) through the second connecting pipe (814) of the second connecting seat (82). The longitudinal section of the first connecting seat (81) and the second connecting seat (82) is annular. The second connecting seat (82) has 2n connecting holes (811) arranged in a circular array and connected to the spiral tube (83). The first connecting seat (81) has a first connecting tube (812) arranged in a circular array on the side near the second connecting seat (82) and communicating with the spiral tube (83) through the connecting holes (811) on the first connecting seat (81). The first connecting seat (81) and the second connecting seat (82) each have S-shaped partitions (813) connecting the inner and outer ring sides of the first connecting seat (81) and the second connecting seat (82). The S-shaped partitions (813) are centrally symmetrically distributed. The exchange tube (8) is provided with a temperature control tube (84), and the spiral tube (83) is wrapped around the outer surface of the temperature control tube (84). The first connecting seat (81) and the second connecting seat (82) are sequentially sleeved on the temperature control tube (84). The end cap (815) is provided on the end face of the first connecting seat (81) away from the second connecting seat (82).

2. The air conditioning device for a livestock farm as described in claim 1, characterized in that, The absorption tank (5) includes a main absorption tank (51) and a secondary absorption tank (52). The gas collected in the farm (1) by the first pipe (3) passes through the first liquid in the first absorption tank and the second liquid in the second absorption tank in sequence, and then returns to the farm (1) through the second pipe (4).

3. The air conditioning device for a livestock farm as described in claim 2, characterized in that, When the ammonia concentration of the first liquid reaches 9-20%, the first liquid is recovered, the second liquid is transported to the main absorption tank (51), and the absorption liquid is added to the auxiliary absorption tank (52).

4. The air conditioning device for a livestock farm as described in claim 2, characterized in that, The absorption tank (5) is provided with an inlet pipe (55) and an outlet pipe (56). The inlet pipe (55) is provided with an electric regulating valve (551), a differential pressure balancing valve (552), a pressure gauge (553) and a thermometer (554) in sequence. The outlet pipe (56) is provided with a concentration meter (561) and a liquid filter (562) in sequence.

5. The air conditioning device for a livestock farm as described in claim 4, characterized in that, An exhaust pipe machine (7) is provided between the exhaust pump (6) and the absorption tank (5) to connect the exhaust pump (6) and the absorption tank (5), and the exhaust pipe (71) of the exhaust pipe machine (7) extends into the bottom of the absorption tank (5).

6. The air conditioning device for a livestock farm as described in claim 4, characterized in that, A third pipe (53) connecting the bottom of the main absorption tank (51) and the top of the secondary absorption tank (52) is provided between the main absorption tank (51) and the secondary absorption tank (52), and a fourth pipe (54) connecting the bottom of the main absorption tank (51) and the middle of the secondary absorption tank (52) is provided between them. The liquid inlet pipe (55) is connected to the secondary absorption tank (52), the liquid outlet pipe (56) is connected to the main absorption tank (51), the air pump (6) is connected to the main absorption tank (51), and the second pipe (4) is connected to the secondary absorption tank (52).

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