Exhaust air bellow capable of deodorizing and dedusting

Abstract

The invention relates to an exhaust air bellow capable of removing odor and dust, and belongs to the technical field of exhaust equipment. The exhaust air box capable of deodorizing and dedusting comprises a box body, a first partition plate and a wet curtain, a first air inlet and a first air outlet are formed in the side wall of the box body, a negative pressure fan is arranged at the first air inlet, and the first air outlet is higher than the first air inlet; the first partition plate is arranged on the inner side of the box body and divides the inner space of the box body into an air inlet cavity and an air outlet cavity, the first air inlet communicates with the air inlet cavity, and the first air outlet communicates with the air outlet cavity; the wet curtain is bent in a Z shape and arranged in the air outlet cavity, and the two ends of the wet curtain are connected with the top wall of the box body and the first partition plate correspondingly; a second air inlet is formed in the side, away from the air outlet, of the first partition plate, the wet curtain is arranged between the first air outlet and the second air inlet, and the first partition plate ascends and descends in the height direction of the box to guide the wet curtain to be folded or unfolded. According to the exhaust air bellow capable of removing odor and dust, the quality of air around an old or narrow pig farm can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust equipment, and in particular to an exhaust bellows capable of removing odor and dust. Background Art

[0002] A pig farm is a place for raising pigs on a large scale. Due to the large number of pigs raised in the farm, a large amount of odor is easily generated, which pollutes the environment. In order to solve the environmental pollution caused by the odor generated by the pig farm, the air in the pig farm needs to be deodorized before being discharged.

[0003] Conventional pig farms deodorize the indoor air of the pig farm by installing wet curtains and water curtains in conjunction with the exhaust system inside the pig farm. Since the installation of wet curtains, water curtains and exhaust systems requires a large installation space, it is difficult for pig farms with narrow sites or old areas to meet the installation conditions, resulting in poor air quality around the pig farms, affecting the daily lives of residents. Summary of the invention

[0004] The purpose of the present application is to provide an exhaust bellows that can remove odor and dust in order to address the above-mentioned problems, thereby improving the air quality around old or narrow pig farms and remedying the above-mentioned problems.

[0005] This application is achieved through the following technical solutions: The present application provides an exhaust bellows capable of removing odor and dust, the exhaust bellows capable of removing odor and dust comprising a box body, a first partition and a wet curtain, a side wall of the box body being provided with a first air inlet and a first air outlet, a negative pressure fan being provided at the first air inlet, and the first air outlet being higher than the first air inlet; the first partition being provided at the inner side of the box body, the first partition dividing the internal space of the box body into an air inlet cavity and an air outlet cavity, the first air inlet being connected with the air inlet cavity, and the first air outlet being connected with the air outlet cavity; the wet curtain being bent in a Z shape and provided in the air outlet cavity, the two ends of the wet curtain being respectively connected with the top wall of the box body and the first partition; wherein a second air inlet is provided on the side of the first partition facing away from the air outlet, the wet curtain being provided between the first air outlet and the second air inlet, and the first partition being raised and lowered along the height direction of the box body to guide the wet curtain to fold or unfold.

[0006] In the technical solution of the embodiment of the present application, a negative pressure fan is arranged at the first air inlet, and the negative pressure fan can introduce the gas around the box into the box to perform dust removal and deodorization treatment; the first partition is arranged on the inner side of the box, and the first partition divides the internal space of the box into an air inlet chamber and an air outlet chamber, the first air inlet is connected with the air inlet chamber, and the first air outlet is connected with the air outlet chamber, the air inlet chamber and the air outlet chamber are two relatively closed spaces, and since the air outlet chamber is connected with the outside world through the first air outlet, the air pressure inside the air outlet chamber is close to the outside atmospheric pressure, and the air inlet chamber has the negative pressure fan of the first air inlet to continuously inject air into it, so The internal air pressure of the air inlet cavity can be greater than the internal air pressure of the air outlet cavity and remain stable, so that the gas in the air inlet cavity can move toward the air outlet cavity under the action of the air pressure difference, thereby controlling the movement direction of the gas inside the box body; the wet curtain is bent in a Z shape and is arranged in the air outlet cavity, and the two ends of the wet curtain are respectively connected to the top wall of the box body and the first partition plate; wherein, a second air inlet is arranged on the side of the first partition plate away from the air outlet, and the wet curtain is arranged between the first air outlet and the second air inlet, so that the gas in the air inlet cavity needs to pass through the wet curtain to reach the first air outlet after entering the air outlet cavity, so that the dust and ammonia that may be carried by the gas can be removed by the wet curtain By blocking and adsorbing, the exhaust wind direction for deodorizing and dust removal provided by the present application can achieve stable and effective deodorizing and dust removal effects on the gas; the first partition is raised and lowered along the height direction of the box body to guide the wet curtain to fold or unfold. When the ambient temperature of the pig farm is high, the evaporation of the liquid in the air outlet cavity will absorb heat and cause the internal temperature of the air outlet cavity to drop. The internal temperature of the air outlet cavity is lower than the internal temperature of the air inlet cavity. Under the premise that other conditions in the air inlet cavity remain unchanged, the internal temperature of the air inlet cavity rises with the temperature of the incoming gas, resulting in an increase in the internal air pressure of the air inlet cavity. The temperature difference between the air inlet cavity and the air outlet cavity leads to a pressure difference between the two. The angle of the air inlet is further increased, and the gas inside the air inlet cavity pushes the first baffle to move toward the air outlet cavity. The position of the first baffle in the box rises, driving the wet curtain to fold (that is, the angle between the wet curtain and the vertical direction increases). The gas entering the air outlet cavity from the second air inlet passes through the wet curtain in the horizontal direction and enters the first air outlet. When the angle between the wet curtain and the vertical direction increases, the path of the gas moving inside the wet curtain increases when passing through the wet curtain, so that the gas can contact more with the aqueous solution in the wet curtain, so that the aqueous solution in the wet curtain can fully absorb the ammonia in the gas and adsorb the dust in the gas, thereby enhancing the deodorization and dust removal effect of the box on the gas.When the ambient temperature of the pig farm is low, the activity of gas molecules decreases, the odor in the air in the pig farm is not obvious, and the demand for deodorization and dust removal of the gas in the pig farm is reduced. The operator can manually reduce the input power of the negative pressure fan according to the lower ambient temperature, so that the amount of gas in the air intake chamber is reduced, thereby reducing the internal air pressure of the air intake chamber, and the pressure exerted by the gas in the air intake chamber on the first partition is weakened. The first partition descends along the inner wall of the box under the action of its own gravity, and the first partition moves to pull the wet curtain to unfold (that is, the angle between each part of the wet curtain and the vertical direction is reduced or even returned to zero). When the angle between the wet curtain and the vertical direction When the angle is reduced, the path of the gas moving inside the wet curtain is shortened when passing through the wet curtain, and the gas in the air outlet cavity can be discharged quickly, ensuring that the dust removal and deodorization operations inside the box can be carried out smoothly while reducing the input power of equipment such as negative pressure fans, thereby reducing the amount of energy consumed by the exhaust air box capable of deodorizing and dust removal provided by the present application when the ambient temperature is low, which is energy-saving and environmentally friendly; the box can be hung on the wall of the pig farm, and the exhaust air box capable of deodorizing and dust removal provided by the present application can be installed in narrow or old pig farms, and can use the negative pressure fan to attract the air inside the pig farm into the box for dust removal, thereby improving the air quality inside and outside the pig farm. ;

[0007] In some embodiments, there are multiple wet curtains, and the multiple wet curtains are arranged at intervals along the line between the first air outlet and the second air inlet.

[0008] In the technical solution of the embodiment of the present application, multiple wet curtains are arranged at intervals along the line between the first air outlet and the second air inlet, so that the gas in the air inlet cavity can pass through the multiple wet curtains when moving from the second air inlet to the first air outlet, thereby improving the dust removal and deodorization effect of the gas.

[0009] In some embodiments, the second air inlet is located on a side of the first partition facing away from the first air inlet.

[0010] In the technical solution of the embodiment of the present application, the second air inlet is located on the side of the first partition away from the first air inlet, so that the gas needs to move a longer distance to reach the second air inlet after entering the air inlet cavity from the first air inlet, thereby increasing the retention time of the gas in the air inlet cavity, so that the dust entrained by the gas in the air inlet cavity can fall under the action of gravity and accumulate at the bottom of the air inlet cavity, reducing the amount of dust contained in the gas entering the air outlet cavity, thereby reducing the risk of dust contained in the gas accumulating on the surface of the wet curtain, blocking the gas from entering the wet curtain, and causing the gas to pass through the wet curtain at a reduced rate. In some embodiments, a collecting chamber is provided inside the first partition, the collecting chamber is connected to a plurality of collecting holes, the collecting holes extend to the surface of the first partition connected to the wet curtain, the collecting chamber is connected to a drain pipe, the drain pipe extends toward the bottom wall of the box body, the opening of the drain pipe away from the first partition is lower than the first air inlet, and the liquid level of the water in the box body is located between the first air inlet and the opening of the drain pipe away from the first partition.

[0011] In the technical solution of the embodiment of the present application, a collecting chamber is provided inside the first partition, and the collecting chamber is connected to a plurality of collecting holes. The collecting holes extend to the surface of the first partition connected to the wet curtain, so that water seeping from the wet curtain can enter the collecting chamber through the collecting holes. The collecting chamber is connected to the drain pipe, and the drain pipe extends toward the bottom wall of the box body, so as to guide the liquid in the collecting chamber to the bottom of the box body, thereby avoiding excessive backflow of liquid in the collecting chamber back to the collecting holes, and avoiding the risk of water on the top surface of the first partition flowing to the first air inlet to form a water film to block it and affect the gas flow rate inside the box body. The opening of the drain pipe away from the first partition is lower than the first air inlet, thereby reducing the risk of water flowing out of the opening of the drain pipe away from the first partition moving to the first air inlet and affecting the negative pressure fan. The liquid level of the water in the box body is located between the first air inlet and the opening of the drain pipe away from the first partition, so that the water flowing out of the opening of the drain pipe away from the first partition can directly enter the inner side of the liquid at the bottom of the box body, thereby avoiding the risk of water falling to the liquid and splashing to affect other components inside the box body.

[0012] In some embodiments, a water pump is also included, and the water pump draws liquid from the bottom of the box through a suction pipe and transports it to the wet curtain.

[0013] In the technical solution of the embodiment of the present application, the water pump draws the liquid at the bottom of the box through the suction pipe and transports it to the wet curtain. The water recovered from the wet curtain can be transported back to the wet curtain. On the one hand, the liquid in the box can be reused to reduce the waste of water resources. On the other hand, water can be continuously added to the wet curtain to keep the wet curtain moist, thereby stably absorbing the ammonia contained in the gas in the air outlet cavity, thereby stabilizing the deodorization effect of the box.

[0014] In some embodiments, it also includes a plurality of nozzles, which are arranged on the top wall of the box body and are connected to the water suction pipe.

[0015] In the technical solution of the embodiment of the present application, multiple nozzles are arranged on the top wall of the box body. The nozzles can spray water toward the first partition to form a water curtain in the air outlet cavity, so that the gas in the air outlet cavity can also come into contact with the water when moving in the space outside the wet curtain, so that the ammonia contained in the gas can come into contact with more water and be more easily removed. On the other hand, the water sprayed by the nozzles can flush the surface of the wet curtain and wash away the dust that may accumulate on the surface of the wet curtain, thereby reducing the risk of dust accumulating on the surface of the wet curtain to block the gas from passing through the wet curtain.

[0016] In some embodiments, a support seat is disposed in the air inlet cavity, the support seat is connected to the side wall of the box body, and the support seat supports the first partition through an elastic member.

[0017] In the technical solution of the embodiment of the present application, the support seat supports the first partition through the elastic member, so that when the air pressure in the air inlet chamber is stable, the first partition is in a static state under the action of the internal air pressure of the air inlet chamber and the elastic force of the elastic member, so that the first partition can be raised and lowered in time according to the changes in the internal air pressure of the air inlet chamber, so that the deodorizing effect of the box on the internal gas of the air inlet chamber is stable and effective; in addition, the support seat and the elastic member can limit the distance that the first partition descends, avoiding the risk of the first partition continuing to descend and damaging the wet curtain after the wet curtain is fully unfolded, thereby increasing the service life of the wet curtain.

[0018] In some embodiments, a second partition is provided in the air inlet cavity, and the second partition divides the air inlet cavity into a dust removal area and an air storage area. The dust removal area is connected with the first air inlet port, and the air storage area is located between the dust removal area and the air outlet cavity, and the air storage area is connected with the air outlet cavity through the second air inlet port; the dust removal area is a funnel-shaped structure, the wide end opening of the dust removal area is blocked by the second partition plate, and the narrow end opening of the dust removal area is provided with a dust collecting groove, the first air inlet is provided close to the second partition plate, and a third air inlet is provided at the center of the second partition plate, and the third air inlet connects the dust removal area and the air storage area, and the opening of the third air inlet connected with the dust removal area is lower than the first air inlet.

[0019] In the technical solution of the embodiment of the present application, the dust removal area is a funnel-shaped structure, and the first air inlet is arranged close to the second partition. After the airflow enters the dust removal area from the first air inlet, the airflow spirally descends from the wide end of the dust removal area to the narrow end under the guidance of the weight of the carried dust and the inner wall of the dust removal area. The dust in the airflow is thrown to the inner wall of the dust removal area under the action of centrifugal force. The narrow end opening of the dust removal area is provided with a dust collecting groove. After the granular dust in the airflow collides with the inner wall of the dust removal area, it sinks into the dust collecting groove under the action of its own gravity. A third air inlet is provided at the center of the second partition. The air port, the third air inlet connects the dust removal area and the air storage area, the gas in the dust removal area is separated from the dust and enters the air storage area through the third air inlet, the opening of the third air inlet connecting the dust removal area is lower than the first air inlet, so that the airflow entering the dust removal area is not easy to directly enter the air storage area through the third air port; the exhaust bellows capable of deodorizing and dust removal provided in the present application can remove dust from the air sucked into the box in the dust removal area, so that the amount of dust contained in the gas entering the air storage area and then entering the air outlet cavity is less, thereby reducing the risk of dust contained in the gas accumulating on the wet curtain and causing the surface of the wet curtain to be blocked by impurities.

[0020] In some embodiments, the nozzle is arranged to avoid the second air inlet, and the opening of the second air inlet communicating with the air outlet cavity is higher than the surface of the first partition facing the air outlet cavity.

[0021] In the technical solution of the embodiment of the present application, the nozzle is arranged to avoid the second air inlet, so as to reduce the risk that the water sprayed by the nozzle enters the air inlet cavity through the second air inlet and absorbs dust, and then the dust sticks to the inner wall of the air inlet cavity and is difficult to clean. The opening connecting the second air inlet and the air outlet cavity is higher than the surface of the first partition facing the air outlet cavity, so that the water sprayed by the nozzle and the water seeping from the wet curtain can enter the collecting hole on the first partition before the second air inlet.

[0022] In some embodiments, the narrow end of the dust collecting trough is detachably connected to the dust removal area, the surface of the dust collecting trough facing away from the second partition is not lower than the bottom surface of the outer side of the box body, the dust collecting trough is sealed to the box body, and the dust collecting trough is sealed to the dust removal area.

[0023] In the technical solution of the embodiment of the present application, the dust collecting trough is detachably connected to the narrow end of the dust removal area, which is convenient for the operator to disassemble the dust collecting trough to deal with the dust collected inside. The surface of the dust collecting trough facing away from the second partition is not lower than the bottom surface of the outside of the box body, so as to avoid the protrusion of the dust collecting trough and the bottom surface of the box body affecting the stability of the box body when it is placed on the ground or work platform.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the external structure of an exhaust bellows capable of removing odor and dust provided in some embodiments of the present application; Figure 2 A top view of an exhaust bellows capable of removing odor and dust provided in some embodiments of the present application; Figure 3 A partial cross-sectional view of an exhaust bellows capable of removing odor and dust provided in some embodiments of the present application; Figure 4 A side view of an exhaust bellows capable of removing odor and dust provided in some embodiments of the present application; Figure 5 for Figure 4 Sectional view at AA in the middle; Figure 6 When the wet curtain is folded under the guidance of the first partition Figure 4 Cross-sectional view at AA in the middle.

[0027] Icon: 1-box; 10-first air inlet; 100-negative pressure fan; 11-first air outlet; 12-air inlet cavity; 120-support seat; 121-dust removal area; 122-air storage area; 123-dust collecting trough; 13-air outlet cavity; 2-first partition; 20-second air inlet; 21-collecting cavity; 22-drain pipe; 3-wet curtain; 4-water pump; 40-water suction pipe; 5-nozzle; 6-second partition; 60-third air inlet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0030] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0033] The term "multiple" as used in the present application refers to more than two (including two). Similarly, the term "multiple groups" refers to more than two groups (including two groups), and the term "multiple sheets" refers to more than two sheets (including two sheets).

[0034] According to some embodiments of the present application, optionally, Figure 1 to Figure 6 As shown, the present application provides an exhaust air box capable of removing odor and dust, the exhaust air box capable of removing odor and dust comprises a box body 1, a first partition plate 2 and a wet curtain 3, the side wall of the box body 1 is provided with a first air inlet 10 and a first air outlet 11, a negative pressure fan 100 is provided at the first air inlet 10, and the first air outlet 11 is higher than the first air inlet 10; the first partition plate 2 is provided on the inner side of the box body 1, and the first partition plate 2 divides the internal space of the box body 1 into an air inlet cavity 12 and an air outlet cavity 13, and the first partition plate 2 is provided on the inner side of the box body 1. An air inlet 10 is connected to the air inlet cavity 12, and a first air outlet 11 is connected to the air outlet cavity 13; the wet curtain 3 is bent in a Z shape and is arranged in the air outlet cavity 13, and both ends of the wet curtain 3 are respectively connected to the top wall of the box body 1 and the first partition 2; wherein, a second air inlet 20 is arranged on the side of the first partition 2 away from the air outlet, and the wet curtain 3 is arranged between the first air outlet 11 and the second air inlet 20, and the first partition 2 is raised and lowered along the height direction of the box body 1 to guide the wet curtain 3 to fold or unfold.

[0035] The box 1 can be set on the ground or on a working platform, or the box 1 can be hung inside the pig farm.

[0036] The deodorizing and dust-removing exhaust bellows provided in the present application can cooperate with other ventilation equipment inside the pig farm, so that the air inside the pig farm can be gathered around the deodorizing and dust-removing exhaust bellows, and the deodorizing and dust-removing exhaust bellows can deodorize and dust-removing the air before discharging it to the outside, so that the air discharged to the outside of the pig farm can be deodorized and dust-removed.

[0037] Multiple slide rails can be set on the inner wall of the box body 1, and slide grooves for cooperating with the slide rails are set at the edges of the first partition 2. The first partition 2 slides with the slide rails through the slide grooves. The multiple slide rails guide the first partition 2 to rise and fall along the height direction of the box body 1, thereby reducing the risk of the first partition 2 deviating from the height direction of the box body 1 or flipping during movement; the multiple slide rails correspond one-to-one with the multiple slide grooves, so that the box body 1 can be stably matched with the first partition 2, avoiding the existence of a connection between the air inlet cavity 12 and the air outlet cavity 13 except the second air inlet 20, thereby controlling the flow direction of the gas inside the box body 1.

[0038] The wet curtain 3 is a moist air-permeable member, and when the gas passes through the wet curtain 3 , it will fully contact with the aqueous solution contained in the wet curtain 3 .

[0039] The moving area of ​​the first partition 2 is between the first air outlet 11 and the first air inlet 10 , so as to prevent the first partition 2 from blocking the first air inlet 10 and / or the first air outlet 11 to affect the efficiency of air intake and / or air outlet of the box 1 .

[0040] A negative pressure fan 100 is arranged at the first air inlet 10, and the negative pressure fan 100 can introduce the gas around the box body 1 into the box body 1 for dust removal and deodorization treatment; the first partition plate 2 is arranged on the inner side of the box body 1, and the first partition plate 2 divides the internal space of the box body 1 into an air inlet chamber 12 and an air outlet chamber 13. The first air inlet 10 is connected with the air inlet chamber 12, and the first air outlet 11 is connected with the air outlet chamber 13. The air inlet chamber 12 and the air outlet chamber 13 are two relatively closed spaces. Since the air outlet chamber 13 is connected with the outside world through the first air outlet 11, the air pressure inside the air outlet chamber 13 is close to the outside atmospheric pressure, and the air inlet chamber 12 is continuously injected with air by the negative pressure fan 100 of the first air inlet 10. Air, so the internal air pressure of the air inlet chamber 12 can be greater than the internal air pressure of the air outlet chamber 13 and remain stable, so that the gas in the air inlet chamber 12 can move toward the air outlet chamber 13 under the action of the air pressure difference, and the movement direction of the gas inside the box body 1 is controlled; the wet curtain 3 is bent in a Z shape and is arranged in the air outlet chamber 13, and the two ends of the wet curtain 3 are respectively connected to the top wall of the box body 1 and the first partition plate 2; wherein, the first partition plate 2 is provided with a second air inlet 20 on the side away from the air outlet, and the wet curtain 3 is arranged between the first air outlet 11 and the second air inlet 20, so that the gas in the air inlet chamber 12 needs to pass through the wet curtain 3 to reach the first air outlet 11 after entering the air outlet chamber 13, so that the dust that may be carried by the gas The ammonia gas can be blocked and adsorbed by the wet curtain 3, so that the exhaust wind direction for deodorizing and dust removal provided by the present application has a stable and effective deodorizing and dust removal effect on the gas; the first partition plate 2 is raised and lowered along the height direction of the box body 1 to guide the wet curtain 3 to fold or unfold. When the ambient temperature of the pig farm is high, the evaporation of the liquid in the air outlet cavity 13 will absorb heat and cause the internal temperature of the air outlet cavity 13 to drop. The internal temperature of the air outlet cavity 13 is lower than the internal temperature of the air inlet cavity 12. Under the premise that other conditions in the air inlet cavity 12 remain unchanged, the internal temperature of the air inlet cavity 12 rises with the temperature of the incoming gas, resulting in an increase in the internal air pressure of the air inlet cavity 12. The temperature difference between the air inlet cavity 12 and the air outlet cavity 13 causes the pressure between the two to increase. The pressure difference is further increased, and the gas inside the air inlet cavity 12 pushes the first partition plate 2 to move toward the air outlet cavity 13. The position of the first partition plate 2 in the box body 1 rises, driving the wet curtain 3 to fold (that is, the angle between the wet curtain 3 and the vertical direction increases). The gas entering the air outlet cavity 13 from the second air inlet 20 passes through the wet curtain 3 in the horizontal direction and enters the first air outlet 11. When the angle between the wet curtain 3 and the vertical direction increases, the path of the gas moving in the wet curtain 3 increases when passing through the wet curtain 3, so that the gas can contact more with the aqueous solution in the wet curtain 3, so that the aqueous solution in the wet curtain 3 can fully absorb the ammonia in the gas and adsorb the dust in the gas, thereby enhancing the deodorizing and dust removal effect of the box body 1 on the gas.When the ambient temperature of the pig farm is low, the activity of gas molecules decreases, the odor in the air in the pig farm is not obvious, and the demand for deodorization and dust removal of the gas in the pig farm is reduced. The operator can manually reduce the input power of the negative pressure fan 100 according to the lower ambient temperature to reduce the amount of gas in the air inlet chamber 12 and thus reduce the internal air pressure of the air inlet chamber 12. The pressure exerted by the gas in the air inlet chamber 12 on the first partition 2 is weakened, and the first partition 2 descends along the inner wall of the box body 1 under the action of its own gravity. The first partition moves to pull the wet curtain 3 to unfold (that is, the angle between each part of the wet curtain 3 and the vertical direction is reduced or even returns to zero). When the angle between the wet curtain 3 and the vertical direction is When the angle decreases, the path of the gas moving inside the wet curtain 3 when passing through the wet curtain 3 is shortened, and the gas in the air outlet cavity 13 can be discharged quickly, ensuring that the dust removal and deodorization operation inside the box body 1 can be carried out smoothly while reducing the input power of the negative pressure fan 100 and other equipment, thereby reducing the amount of energy consumed by the exhaust air box capable of deodorizing and dust removal provided by the present application when the ambient temperature is low, which is energy-saving and environmentally friendly; the box body 1 can be hung and installed on the wall of the pig farm, and the exhaust air box capable of deodorizing and dust removal provided by the present application can be installed in a narrow or old pig farm, and can attract the air inside the pig farm into the box body 1 through the negative pressure fan 100 for dust removal, thereby improving the air quality inside and outside the pig farm. ;

[0041] According to some embodiments of the present application, optionally, Figure 3 , Figure 5~Figure 6 As shown, there are multiple wet curtains 3, and the multiple wet curtains 3 are arranged at intervals along the line between the first air outlet 11 and the second air inlet 20.

[0042] The spacing distance between adjacent wet curtains 3 in the plurality of wet curtains 3 is such that when the angle between each folded portion of the wet curtain 3 and the vertical direction is a right angle (ie, when folded to the maximum extent), they do not contact each other.

[0043] The plurality of wet curtains 3 are arranged at intervals along the line between the first air outlet 11 and the second air inlet 20, so that the gas in the air inlet cavity 12 can pass through the plurality of wet curtains 3 when moving from the second air inlet 20 to the first air outlet 11, thereby improving the dust removal and deodorization effect on the gas.

[0044] According to some embodiments of the present application, optionally, Figure 5~Figure 6 As shown, the second air inlet 20 is located on a side of the first partition plate 2 facing away from the first air inlet 10 .

[0045] The first air inlet 10 and the first air outlet 11 may be arranged on the same side.

[0046] The second air inlet 20 is located on the side of the first partition 2 away from the first air inlet 10, so that the gas needs to move a longer distance to reach the second air inlet 20 after entering the air inlet cavity 12 from the first air inlet 10, thereby increasing the retention time of the gas in the air inlet cavity 12, so that the dust entrained by the gas in the air inlet cavity 12 can fall under the action of gravity and accumulate at the bottom of the air inlet cavity 12, reducing the amount of dust contained in the gas entering the air outlet cavity 13, thereby reducing the risk of dust contained in the gas accumulating on the surface of the wet curtain 3 to block the gas from entering the wet curtain 3 and causing the rate at which the gas passes through the wet curtain 3 to be reduced.

[0047] According to some embodiments of the present application, optionally, Figure 5~Figure 6 As shown, a collecting chamber 21 is provided inside the first partition 2, and the collecting chamber 21 is connected to a plurality of collecting holes, and the collecting holes extend to the surface where the first partition 2 is connected to the wet curtain 3, and the collecting chamber 21 is connected to a drain pipe 22, and the drain pipe 22 extends toward the bottom wall of the box body 1, and the opening of the drain pipe 22 away from the first partition 2 is lower than the first air inlet 10, and the liquid level of the water in the box body 1 is located between the first air inlet 10 and the opening of the drain pipe 22 away from the first partition 2.

[0048] The drain pipe 22 is a hose.

[0049] A collecting chamber 21 is provided inside the first partition 2, and the collecting chamber 21 is connected with a plurality of collecting holes, and the collecting holes extend to the surface where the first partition 2 is connected with the wet curtain 3, so that water seeping from the wet curtain 3 can enter the collecting chamber 21 through the collecting holes, and the collecting chamber 21 is connected with a drain pipe 22, and the drain pipe 22 extends toward the bottom wall of the box body 1, so as to guide the liquid in the collecting chamber 21 to the bottom of the box body 1, so as to prevent the liquid in the collecting chamber 21 from excessively flowing back to the collecting holes, and to prevent the water on the top surface of the first partition 2 from flowing to the first air inlet 10 to form a water film to block it and affect the gas inside the box 1 The risk of flow rate, the opening of the drain pipe 22 away from the first partition 2 is lower than the first air inlet 10, reducing the risk of water flowing out of the opening of the drain pipe 22 away from the first partition 2 moving to the first air inlet 10 and affecting the negative pressure fan 100. The water level in the box 1 is located between the first air inlet 10 and the opening of the drain pipe 22 away from the first partition 2, so that the water flowing out of the opening of the drain pipe 22 away from the first partition 2 can directly enter the liquid inside the bottom of the box 1, avoiding the risk of water falling on the liquid and splashing to affect other components inside the box 1.

[0050] According to some embodiments of the present application, optionally, Figure 1~Figure 3 , Figure 5~Figure 6 As shown, a water pump 4 is also included, and the water pump 4 extracts liquid from the bottom of the box body 1 through a water suction pipe 40 and transports it to the wet curtain 3.

[0051] The connection point between the suction pipe 40 and the bottom of the box 1 is located below and close to the liquid surface of the aqueous solution in the box 1, so that the suction pipe 40 can extract the surface part of the liquid in the box 1, reducing the risk of the suction pipe 40 sucking in particulate impurities such as dust that may be settled at the bottom of the liquid in the box 1.

[0052] An acidic solution may be added to the liquid in the box 1 to make the liquid in the box 1 acidic and enhance the absorption effect of the liquid on alkaline ammonia.

[0053] The water pump 4 draws the liquid at the bottom of the box 1 through the suction pipe 40 and transports it to the wet curtain 3. The water recovered from the wet curtain 3 can be transported back to the wet curtain 3. On the one hand, the liquid in the box 1 can be reused to reduce the waste of water resources. On the other hand, water can be continuously added to the wet curtain 3 to keep the wet curtain 3 moist, thereby stably absorbing the ammonia contained in the gas in the air outlet cavity 13, so that the deodorization effect of the box 1 is stable.

[0054] According to some embodiments of the present application, optionally, Figure 5~Figure 6 As shown, it also includes a plurality of nozzles 5 , which are arranged on the top wall of the box body 1 and are connected to the water suction pipe 40 .

[0055] The plurality of nozzles 5 are disposed between the plurality of wet curtains 3 , at least one wet curtain 3 is disposed between the nozzle 5 and the first air outlet 11 , and at least one wet curtain 3 is disposed between the nozzle 5 and the second air inlet 20 .

[0056] A plurality of nozzles 5 are arranged on the top wall of the box body 1. The nozzles 5 can spray water toward the first partition plate 2 to form a water curtain in the air outlet cavity 13, so that the gas in the air outlet cavity 13 can also come into contact with the water when moving in the space outside the wet curtain 3, so that the ammonia contained in the gas can come into contact with more water and thus be more easily removed. On the other hand, the water sprayed by the nozzles 5 can flush the surface of the wet curtain 3 and wash away the dust that may be accumulated on the surface of the wet curtain 3, thereby reducing the risk of dust accumulating on the surface of the wet curtain 3 and blocking the gas from passing through the wet curtain 3.

[0057] According to some embodiments of the present application, optionally, Figure 3 , Figure 5~Figure 6 As shown, a support seat 120 is disposed in the air inlet cavity 12 , the support seat 120 is connected to the side wall of the box body 1 , and the support seat 120 supports the first partition plate 2 through an elastic member.

[0058] The elastic member may be, but is not limited to, a spring.

[0059] A sleeve structure that cooperates with each other can be set at the position of the support seat 120 and the first partition plate 2 facing the support seat 120, and the elastic member can be set inside the sleeve structure. The sleeve structure can limit the deformation direction of the support member.

[0060] The support seat 120 supports the first partition 2 through the elastic member, so that when the air pressure in the air inlet chamber 12 remains stable, the first partition 2 is in a static state under the action of the internal air pressure of the air inlet chamber 12 and the elastic force of the elastic member, so that the first partition 2 can be raised and lowered in time according to the changes in the internal air pressure of the air inlet chamber 12, so that the deodorizing effect of the box body 1 on the internal gas of the air inlet chamber 12 is stable and effective; in addition, the support seat 120 and the elastic member can limit the distance that the first partition 2 descends, avoiding the risk of the first partition 2 continuing to descend and damaging the wet curtain 3 after the wet curtain 3 is fully unfolded, thereby improving the service life of the wet curtain 3.

[0061] According to some embodiments of the present application, optionally, Figure 3 , Figure 5~Figure 6 As shown, a second partition plate 6 is arranged in the air inlet chamber 12, and the second partition plate 6 divides the air inlet chamber 12 into a dust removal area 121 and an air storage area 122. The dust removal area 121 is connected with the first air inlet port 10, and the air storage area 122 is located between the dust removal area 121 and the air outlet chamber 13, and the air storage area 122 is connected with the air outlet chamber 13 through the second air inlet port 20; the dust removal area 121 is a funnel-shaped structure, the wide end opening of the dust removal area 121 is blocked by the second partition plate 6, and the narrow end opening of the dust removal area 121 is provided with a dust collecting groove 123, the first air inlet port 10 is arranged close to the second partition plate 6, and a third air inlet port 60 is arranged at the center of the second partition plate 6, and the third air inlet port 60 connects the dust removal area 121 and the air storage area 122, and the opening of the third air inlet port 60 connected with the dust removal area 121 is lower than the first air inlet port 10.

[0062] The opening of the third air inlet 60 communicating with the air storage area 122 may be higher than the surface of the second partition plate 6 facing the air storage area 122 .

[0063] The dust removal area 121 is a funnel-shaped structure. The first air inlet 10 is arranged close to the second partition 6. After the airflow enters the dust removal area 121 from the first air inlet 10, the airflow spirally descends from the wide end of the dust removal area 121 to the narrow end under the guidance of the weight of the carried dust and the inner wall of the dust removal area 121. The dust in the airflow is thrown to the inner wall of the dust removal area 121 under the action of centrifugal force. The narrow end opening of the dust removal area 121 is provided with a dust collecting groove 123. After the granular dust in the airflow collides with the inner wall of the dust removal area 121, it settles into the dust collecting groove under the action of its own gravity. A third air inlet 60 is arranged at the center of the second partition 6. The third air inlet 60 is connected to the second partition 6. The dust removal area 121 and the air storage area 122 are connected. The gas in the dust removal area 121 is separated from the dust and then enters the air storage area 122 through the third air inlet 60. The opening of the third air inlet 60 connecting the dust removal area 121 is lower than the first air inlet 10, so that the airflow entering the dust removal area 121 is not easy to directly enter the air storage area 122 through the third air inlet. The exhaust bellows capable of deodorizing and dust removal provided in the present application can remove dust from the air sucked into the box body 1 in the dust removal area 121, so that the amount of dust contained in the gas after entering the air storage area 122 and then entering the air outlet cavity 13 is less, thereby reducing the risk of dust contained in the gas accumulating on the wet curtain 3 and causing the surface of the wet curtain 3 to be blocked by impurities.

[0064] According to some embodiments of the present application, optionally, Figure 5~Figure 6 As shown, the nozzle 5 is arranged to avoid the second air inlet 20 , and the opening of the second air inlet 20 communicating with the air outlet cavity 13 is higher than the surface of the first partition plate 2 facing the air outlet cavity 13 .

[0065] The nozzle 5 can also be arranged to avoid the first air outlet 11 to prevent the water sprayed by the nozzle 5 from drifting from the first air outlet 11 to the outside of the box 1, causing the outside of the first air outlet 11 to be wet, which is easy to breed bacteria and viruses.

[0066] The nozzle 5 is arranged to avoid the second air inlet 20, thereby reducing the risk that the water sprayed by the nozzle 5 enters the air inlet cavity 12 through the second air inlet 20 and absorbs dust and then adheres to the inner wall of the air inlet cavity 12, making it difficult to clean. The opening of the second air inlet 20 connecting to the air outlet cavity 13 is higher than the surface of the first partition 2 facing the air outlet cavity 13, so that the water sprayed by the nozzle 5 and the water seeping from the wet curtain 3 can enter the collecting hole on the first partition 2 before the second air inlet 20.

[0067] According to some embodiments of the present application, optionally, Figure 5~Figure 6 As shown, the dust collecting groove 123 is detachably connected to the narrow end of the dust removal area 121, the surface of the dust collecting groove 123 facing away from the second partition 6 is not lower than the bottom surface of the outer side of the box body 1, the dust collecting groove 123 is sealedly connected to the box body 1, and the dust collecting groove 123 is sealedly connected to the dust removal area 121.

[0068] There may be a gap between the surface of the dust collecting trough 123 facing away from the second partition plate 6 and the bottom surface of the box body 1, so that the operator can grab the dust collecting trough 123 for disassembly and assembly.

[0069] The dust collecting trough 123 is detachably connected to the narrow end of the dust removal area 121, so that the operator can disassemble the dust collecting trough 123 to deal with the dust collected inside. The surface of the dust collecting trough 123 facing away from the second partition 6 is not lower than the bottom surface of the outer side of the box body 1, so as to avoid the dust collecting trough 123 protruding from the bottom surface of the box body 1 and affecting the stability of the box body 1 when it is placed on the ground or a work platform.

[0070] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An exhaust bellows capable of removing odor and dust, characterized in that: include: The box body has a first air inlet and a first air outlet on its side wall, a negative pressure fan is provided at the first air inlet, and the first air outlet is higher than the first air inlet; a first partition plate, disposed inside the box body, the first partition plate dividing the internal space of the box body into an air inlet cavity and an air outlet cavity, the first air inlet being communicated with the air inlet cavity, and the first air outlet being communicated with the air outlet cavity; A wet curtain is bent in a Z shape and is arranged in the air outlet cavity, and two ends of the wet curtain are respectively connected to the top wall of the box body and the first partition plate; A second air inlet is arranged on a side of the first partition away from the air outlet, the wet curtain is arranged between the first air outlet and the second air inlet, and the first partition is raised and lowered along the height direction of the box to guide the wet curtain to fold or unfold.

2. The exhaust bellows capable of removing odor and dust according to claim 1, characterized in that: There are multiple wet curtains, and the multiple wet curtains are arranged at intervals along the line between the first air outlet and the second air inlet.

3. The exhaust bellows capable of removing odor and dust according to claim 1, characterized in that: The second air inlet is located on a side of the first partition plate away from the first air inlet.

4. The exhaust bellows capable of removing odor and dust according to claim 1, characterized in that: A collecting chamber is provided inside the first partition, and the collecting chamber is connected to a plurality of collecting holes. The collecting holes extend to the surface of the first partition connected to the wet curtain. The collecting chamber is connected to a drain pipe, and the drain pipe extends toward the bottom wall of the box body. The opening of the drain pipe away from the first partition is lower than the first air inlet, and the liquid level of the water in the box body is located between the first air inlet and the opening of the drain pipe away from the first partition.

5. The exhaust bellows capable of removing odor and dust according to claim 4, characterized in that: It also includes a water pump, which draws liquid from the bottom of the box through a water pumping pipe and transports it to the wet curtain.

6. The exhaust bellows capable of removing odor and dust according to claim 5, characterized in that: It also includes a plurality of nozzles, which are arranged on the top wall of the box body and are connected to the water pumping pipe.

7. The exhaust bellows capable of removing odor and dust according to claim 6, characterized in that: The nozzle is arranged to avoid the second air inlet, and the opening of the second air inlet communicating with the air outlet cavity is higher than the surface of the first partition plate facing the air outlet cavity.

8. The exhaust bellows capable of removing odor and dust according to claim 1, characterized in that: A support seat is arranged in the air inlet cavity, the support seat is connected to the side wall of the box body, and the support seat supports the first partition plate through an elastic member.

9. The exhaust bellows capable of removing odor and dust according to claim 1, characterized in that: A second partition is provided in the air inlet cavity, the second partition divides the air inlet cavity into a dust removal area and an air storage area, the dust removal area is connected with the first air inlet, the air storage area is located between the dust removal area and the air outlet cavity, and the air storage area is connected with the air outlet cavity through the second air inlet; The dust removal area is a funnel-shaped structure, the wide end opening of the dust removal area is blocked by the second partition, the narrow end opening of the dust removal area is provided with a dust collecting groove, the first air inlet is arranged close to the second partition, and the third air inlet is arranged at the center of the second partition, the third air inlet connects the dust removal area and the air storage area, and the opening of the third air inlet connecting with the dust removal area is lower than the first air inlet.

10. The exhaust bellows capable of removing odor and dust according to claim 9, characterized in that: The dust collecting trough is detachably connected to the narrow end of the dust removal zone, the surface of the dust collecting trough facing away from the second partition is not lower than the bottom surface of the outer side of the box body, the dust collecting trough is sealed to the box body, and the dust collecting trough is sealed to the dust removal zone.

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