Pig house exhausting and deodorizing device

Abstract

The utility model discloses a hog house exhaust deodorization device which comprises a deodorization chamber, a spraying pipe and a grid filter material plate are arranged in the deodorization chamber, the grid filter material plate is located under the spraying pipe and enables a spraying solution to form a water curtain, a first negative pressure fan and a second negative pressure fan are arranged on the side wall of the deodorization chamber, and the first negative pressure fan and the second negative pressure fan are arranged on the side wall of the deodorization chamber. The first negative pressure fan is used for introducing air of the hog house into the deodorization chamber, the first negative pressure fan is arranged below the spraying pipe, a liquid inlet pipe is arranged at the bottom of the deodorization chamber, the liquid inlet pipe is connected with a liquid return pipe through a three-way connector, the end, away from the liquid inlet pipe, of the liquid return pipe is connected with the spraying pipe, and a chemical pump is arranged on the liquid return pipe. According to the utility model, the grid filter material plate is arranged in the deodorization chamber, so that the contact area between a spraying solution and odor is increased, and harmful gas in air can be fully removed; the spraying solution dripping on the bottom wall of the deodorization chamber is conveyed back to the spraying pipe, so that the aim of recycling the spraying solution is fulfilled; and the utilization rate of the spraying solution is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deodorization, in particular to an exhaust gas deodorization device for a piggery. Background Art

[0002] In order to ensure the indoor fresh air volume, piggeries in farms use negative pressure exhaust systems to extract air from piggeries to replace indoor air. However, the exhaust air discharged from piggeries contains pollutants such as ammonia and hydrogen sulfide, which will affect the surrounding environment. Therefore, the negative pressure exhaust system of piggeries introduces polluted air in the house into the deodorization purification room, reacts with the spray solution containing sodium hypochlorite, and chemically reacts the main components of the odor in the house, ammonia and hydrogen sulfide, which are harmful gases, decompose into odorless substances and are discharged outside the house to achieve the purpose of purifying the air.

[0003] At present, due to the layout of the spray pipe, the spray solution does not come into sufficient contact with part of the polluted air, so the polluted air is discharged out of the house without fully reacting with the spray solution. In addition, after the spray liquid in the purification room drips to the ground, it often has not reacted completely. Direct discharge will result in the spray solution not being fully utilized, making the spray solution utilization efficiency low. Therefore, we propose a pig house exhaust deodorization device to improve this. Utility Model Content

[0004] The purpose of the utility model is to improve and innovate the shortcomings and problems existing in the background technology and to provide a pig house exhaust and deodorization device.

[0005] A pig house exhaust deodorization device comprises a deodorization chamber, wherein a spray pipe and a mesh filter plate are arranged inside the deodorization chamber, wherein the mesh filter plate is located directly below the spray pipe, wherein the mesh filter plate enables the spray solution to form a water curtain, wherein a first negative pressure fan and a second negative pressure fan are arranged on the side wall of the deodorization chamber, wherein the first negative pressure fan is used to introduce air from the pig house into the deodorization chamber, and the first negative pressure fan is arranged below the spray pipe, and the second negative pressure fan is used to discharge the deodorized air out of the deodorization chamber, wherein a liquid inlet pipe is arranged at the bottom of the deodorization chamber, wherein the liquid inlet pipe is connected to a liquid return pipe via a three-way joint, wherein one end of the liquid return pipe away from the liquid inlet pipe is connected to the spray pipe, and a chemical pump is arranged on the liquid return pipe.

[0006] A further solution is that the liquid inlet pipe is connected to the liquid outlet pipe of the liquid storage cylinder through a three-way joint, the liquid storage cylinder stores deodorizing liquid, and the liquid outlet pipe is provided with a second solenoid valve.

[0007] A further solution is that a conductivity value monitoring sensor is installed at the lower part of the inner wall of the deodorizing chamber, a sewage pipe is arranged at the bottom of the deodorizing chamber, a fourth solenoid valve is arranged on the sewage pipe, a circuit control board is arranged on the outer wall of the deodorizing chamber, the end of the liquid inlet pipe is connected to the clean water tank, and a liquid level monitoring device is arranged inside the deodorizing chamber.

[0008] A further solution is that the liquid level monitoring device includes a rod body arranged on the bottom wall of the deodorization chamber, a lower sensing switch and an upper sensing switch are installed on the rod body, and a float is arranged between the lower sensing switch and the upper sensing switch; when the lower surface of the float contacts the lower sensing switch, the circuit control board controls the fourth solenoid valve to close and the first solenoid valve and the second solenoid valve to open; when the upper surface of the float contacts the upper sensing switch, the circuit control board controls the first solenoid valve and the second solenoid valve to close.

[0009] A further solution is that a pH value monitoring sensor is installed at the lower part of the deodorizing chamber, a bypass pipe is arranged on the liquid outlet pipe, a third solenoid valve is arranged on the bypass pipe, and a circuit control board is arranged on the outer wall of the deodorizing chamber. When the pH value monitoring sensor detects that the pH value of the spray solution is greater than a first preset pH threshold, the circuit control board controls the third solenoid valve to open; when the pH value monitoring sensor detects that the pH value of the spray solution is less than a second preset pH threshold, the circuit control board controls the third solenoid valve to close.

[0010] A further solution is that the mesh filter plate is a mesh PP filter plate.

[0011] A further solution is that sodium hypochlorite solution is stored in the liquid storage cylinder.

[0012] Compared with the prior art, the utility model has the following beneficial effects: (1) the utility model arranges a mesh filter plate in the deodorizing chamber so that the spray solution forms a water curtain, thereby increasing the contact area between the spray solution and the odor, which is conducive to fully removing pollutants such as ammonia and hydrogen sulfide in the air;

[0013] (2) The utility model transports the spray solution dripping on the bottom wall of the deodorizing chamber back to the spray pipe through the chemical pump and the return pipe, so as to achieve the purpose of recycling the spray solution; improve the utilization rate of the spray solution; monitor the conductivity value of the spray solution in real time through the conductivity value monitoring sensor, and discharge the fully reacted spray solution from the deodorizing chamber; and replenish the spray solution into the deodorizing chamber in time through the liquid level monitoring device, so as to realize the automatic replenishment of the sodium hypochlorite solution and the automatic discharge of the corresponding sewage, so as to achieve the purpose of automatic control, thereby avoiding the long-term use of the sodium hypochlorite solution;

[0014] (3) The utility model monitors the pH value of the spray solution through a pH monitoring sensor. When the pH value of the spray solution is detected to deviate from the preset value, sodium hypochlorite solution is added to the liquid inlet pipe through the bypass pipe, thereby ensuring that the sodium hypochlorite solution can fully remove harmful components in the odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the internal structure of the deodorizing device provided by an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the deodorizing device provided in an embodiment of the utility model.

[0018] Figure numerals: deodorization chamber 1, pH value monitoring sensor 2, conductivity value monitoring sensor 3, rod body 4, lower induction switch 5, float 6, upper induction switch 7, spray pipe 8, liquid return pipe 9, chemical pump 10, liquid inlet pipe 11, first solenoid valve 12, liquid storage cylinder 13, liquid outlet pipe 14, bypass pipe 15, second solenoid valve 16, third solenoid valve 17, drain pipe 18, fourth solenoid valve 19, circuit control board 20, first negative pressure fan 21, second negative pressure fan 22, mesh filter plate 23. DETAILED DESCRIPTION

[0019] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] See also Figure 1-Figure 2The utility model provides a pig house exhaust deodorization device, including a deodorization chamber 1, wherein a spray pipe 8 is arranged inside the deodorization chamber 1. A first negative pressure fan 21 and a second negative pressure fan 22 are arranged on the side wall of the deodorization chamber 1, wherein the first negative pressure fan 21 is used to introduce the air of the pig house into the deodorization chamber 1, and the first negative pressure fan 21 is arranged below the spray pipe 8. The second negative pressure fan 22 is used to discharge the deodorized air out of the deodorization chamber 1. A mesh filter plate 23 is also arranged in the deodorization chamber 1, wherein the mesh filter plate 23 is located directly below the spray pipe 8. In the present embodiment, the mesh filter plate 23 is preferably a mesh PP filter plate. The mesh filter plate 23 enables the spray solution to form a water curtain, thereby increasing the contact area between the spray solution and the odor, and is conducive to the spray solution to fully remove pollutants such as ammonia and hydrogen sulfide in the air. In the present embodiment, the spray solution is preferably a sodium hypochlorite solution. A liquid inlet pipe 11 is provided at the bottom of the deodorizing chamber 1, and the liquid inlet pipe 11 is connected to a liquid return pipe 9 through a three-way joint. The end of the liquid return pipe 9 away from the liquid inlet pipe 11 is connected to the spray pipe 8, and a chemical pump 10 is provided on the liquid return pipe 9. The spray solution dripping on the bottom wall of the deodorizing chamber 1 is transported back to the spray pipe 8 through the chemical pump 10 and the liquid return pipe 9, so as to achieve the purpose of recycling the spray solution and improve the utilization rate of the spray solution.

[0023] The end of the liquid inlet pipe 11 can be connected to the clean water tank, and a first solenoid valve 12 is provided at the end of the liquid inlet pipe 11. The liquid inlet pipe 11 is connected to the liquid outlet pipe 14 of the liquid storage cylinder 13 through a three-way joint. The liquid storage cylinder 13 stores deodorant liquid, and a second solenoid valve 16 is provided on the liquid outlet pipe 14. A bypass pipe 15 is provided on the liquid outlet pipe 14, and a third solenoid valve 17 is provided on the bypass pipe 15. When the second solenoid valve 16 or the third solenoid valve 17 is opened, the liquid storage cylinder 13 can replenish the sodium hypochlorite solution to the liquid inlet pipe 11.

[0024] The conductivity value monitoring sensor 3 and the pH value monitoring sensor 2 are installed at the lower part of the inner wall of the deodorizing chamber 1. A sewage pipe 18 is arranged at the bottom of the deodorizing chamber 1, and a fourth solenoid valve 19 is arranged on the sewage pipe 18. A circuit control board 20 is arranged on the outer wall of the deodorizing chamber 1. A liquid level monitoring device is arranged inside the deodorizing chamber 1. When the conductivity value monitoring sensor 3 detects that the conductivity value of the spray solution is greater than the preset conductivity value, the circuit control board 20 controls the fourth solenoid valve 19 to open, and discharges the spray solution that has reacted for a long time from the deodorizing chamber 1; and when the liquid level monitoring device detects that the liquid level of the solution in the deodorizing chamber 1 is lower than the first liquid level; the circuit control board 20 controls the fourth solenoid valve 19 to close, and controls the second solenoid valve 16 on the liquid outlet pipe 14 and the first solenoid valve 12 on the liquid inlet pipe 11 to open, so that the proportion of clean water and sodium hypochlorite solution is adapted, and the spray solution is replenished into the deodorizing chamber 1 through the liquid inlet pipe 11; when the liquid level monitoring device detects that the liquid level of the solution in the deodorizing chamber 1 is higher than the second liquid level, the circuit control board 20 controls the second solenoid valve 16 on the liquid outlet pipe 14 and the first solenoid valve 12 on the liquid inlet pipe 11 to close, so as to realize the automatic replenishment of the sodium hypochlorite solution and the automatic discharge of the corresponding sewage, so as to achieve the purpose of automatic control, thereby avoiding the long-term use of the sodium hypochlorite solution. In addition, when the pH value monitoring sensor 2 detects that the pH value of the spray solution is greater than the first preset pH threshold, the circuit control board 20 controls the third solenoid valve 17 to open, and when the pH value monitoring sensor 2 detects that the pH value of the spray solution is less than the second preset pH threshold, the circuit control board 20 controls the third solenoid valve 17 to close. Sodium hypochlorite solution is added to the liquid inlet pipe 11 through the bypass pipe 15, thereby ensuring the effectiveness of the sodium hypochlorite solution, which can fully remove harmful components in the odor.

[0025] It should be noted that the circuit control board 20 receives the signal from the sensor to control the on and off of the solenoid valve, which is cheaper than the PLC controller, and the circuit control board 20 has a high degree of integration and is easy to produce and assemble. The circuit control board 20 can be encapsulated inside the shell and then installed on the outer wall of the deodorizing chamber 1 to prevent the circuit control board 20 from being affected by dust in the air.

[0026] Specifically, the liquid level monitoring device includes a rod body 4 arranged on the bottom wall of the deodorization chamber 1, on which a lower sensing switch 5 and an upper sensing switch 7 are installed, and a float 6 is arranged between the lower sensing switch 5 and the upper sensing switch 7; when the lower surface of the float 6 contacts the lower sensing switch 5, the circuit control board 20 controls the fourth solenoid valve 19 to close and the first solenoid valve 12 and the second solenoid valve 16 to open; when the upper surface of the float 6 contacts the upper sensing switch 7, the circuit control board 20 controls the first solenoid valve 12 and the second solenoid valve 16 to close.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0029] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pig house exhaust deodorization device, characterized in that: The invention comprises a deodorizing chamber (1), wherein a spray pipe (8) and a mesh filter plate (23) are arranged inside the deodorizing chamber (1), wherein the mesh filter plate (23) is located directly below the spray pipe (8), and wherein the mesh filter plate (23) allows the spray solution to form a water curtain. A first negative pressure fan (21) and a second negative pressure fan (22) are arranged on the side wall of the deodorizing chamber (1), wherein the first negative pressure fan (21) is used to introduce air from a pig house into the deodorizing chamber (1), and the first negative pressure fan (21) is arranged below the spray pipe (8), and the second negative pressure fan (22) is used to discharge the deodorized air out of the deodorizing chamber (1). A liquid inlet pipe (11) is arranged at the bottom of the deodorizing chamber (1), wherein the liquid inlet pipe (11) is connected to a liquid return pipe (9) via a three-way joint, wherein one end of the liquid return pipe (9) away from the liquid inlet pipe (11) is connected to the spray pipe (8), and a chemical pump (10) is arranged on the liquid return pipe (9).

2. A pig house exhaust deodorization device according to claim 1, characterized in that: The liquid inlet pipe (11) is connected to a liquid outlet pipe (14) of a liquid storage cylinder (13) via a three-way joint. Deodorant liquid is stored in the liquid storage cylinder (13). A second solenoid valve (16) is provided on the liquid outlet pipe (14).

3. A pig house exhaust deodorization device according to claim 2, characterized in that: A conductivity value monitoring sensor (3) is installed at the lower part of the inner wall of the deodorizing chamber (1), a sewage pipe (18) is arranged at the bottom of the deodorizing chamber (1), a fourth solenoid valve (19) is arranged on the sewage pipe (18), a circuit control board (20) is arranged on the outer wall of the deodorizing chamber (1), the end of the liquid inlet pipe (11) is connected to the clean water tank, and a liquid level monitoring device is arranged inside the deodorizing chamber (1).

4. A pig house exhaust deodorization device according to claim 3, characterized in that: The liquid level monitoring device comprises a rod body (4) arranged on the bottom wall of the deodorizing chamber (1), a lower induction switch (5) and an upper induction switch (7) being mounted on the rod body (4), and a floating ball (6) being arranged between the lower induction switch (5) and the upper induction switch (7); when the lower surface of the floating ball (6) contacts the lower induction switch (5), the circuit control board (20) controls the fourth solenoid valve (19) to be closed and the first solenoid valve (12) and the second solenoid valve (16) to be opened; when the upper surface of the floating ball (6) contacts the upper induction switch (7), the circuit control board (20) controls the first solenoid valve (12) and the second solenoid valve (16) to be closed.

5. The pig house exhaust deodorization device according to claim 2, characterized in that: A pH value monitoring sensor (2) is installed at the lower part of the deodorizing chamber (1); a bypass pipe (15) is arranged on the liquid outlet pipe (14); a third electromagnetic valve (17) is arranged on the bypass pipe (15); and a circuit control board (20) is arranged on the outer wall of the deodorizing chamber (1); when the pH value monitoring sensor (2) detects that the pH value of the spraying solution is greater than a first preset pH threshold, the circuit control board (20) controls the third electromagnetic valve (17) to open; when the pH value monitoring sensor (2) detects that the pH value of the spraying solution is less than a second preset pH threshold, the circuit control board (20) controls the third electromagnetic valve (17) to close.

6. The pig house exhaust deodorization device according to claim 1, characterized in that: The mesh filter material plate (23) is a mesh PP filter material plate.

7. A pig house exhaust deodorization device according to claim 2, characterized in that: The liquid storage cylinder (13) stores a sodium hypochlorite solution.

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