A negative pressure tank cleaning gas recovery and environmental protection treatment device

Abstract

The present invention provides a negative pressure tank cleaning gas recovery and environmental protection treatment device, which belongs to the field of negative pressure tank cleaning technology. A negative pressure tank cleaning gas recovery and environmental protection treatment device comprises a tank body, wherein an air outlet pipe is arranged near the top edge of the cylindrical surface of the tank body, the end of the air outlet pipe away from the tank body is fixedly connected to a vacuum pump, the other end of the vacuum pump is fixedly connected to an exhaust main pipe, the exhaust main pipe is provided with a first branch pipe and a second branch pipe at the end away from the vacuum pump, a stop valve is arranged on the first branch pipe and the second branch pipe, a first purification component is arranged at the end of the first branch pipe away from the exhaust main pipe, the number of the first purification components is multiple and they are sequentially connected up and down, and a second purification component is arranged on the upper surface of the topmost first purification component. By using the first purification component and the second purification component, the harmful gases absorbed in the process of absorbing pollutants can be purified, thereby preventing the polluted gases from flowing into the air and polluting the environment.

Description

Technical Field

[0001] The invention relates to the technical field of negative pressure tank cleaning, and in particular to a negative pressure tank cleaning gas recovery and environmental protection treatment device. Background Art

[0002] Negative pressure tank cleaning technology uses the negative pressure principle to suck out the residues and pollutants in the tank, which can safely and efficiently clean the inside of the tank, and is particularly suitable for handling dangerous or harmful substances. It is widely used in the petroleum, chemical, environmental protection and other industries, and is one of the important means of modern industrial cleaning operations.

[0003] When the tank truck is cleaned by negative pressure cleaning, there are many harmful gases inside the tank truck itself. The direct discharge of these gases will cause pollution to the outside air and affect people's health. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a negative pressure tank cleaning gas recovery and environmental protection treatment device, which can purify the polluted gas in the sucked air and avoid air pollution.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a negative pressure tank cleaning gas recovery and environmental protection treatment device, including a tank body, an air outlet pipe is arranged on the cylindrical surface of the tank body near the top edge, the air outlet pipe is fixedly connected to a vacuum pump at one end away from the tank body, and the other end of the vacuum pump is fixedly connected to an exhaust main pipe, the exhaust main pipe is provided with a first branch pipe and a second branch pipe at one end away from the vacuum pump, a stop valve is arranged on the first branch pipe and the second branch pipe, a first purification component is arranged at one end of the first branch pipe away from the exhaust main pipe, the number of the first purification components is multiple and they are connected in sequence up and down, and a second purification component is arranged on the upper surface of the top first purification component, the first purification component includes a first purification tank, an inflow pipe, an outflow pipe, a connecting pipe, a funnel and a gas separation baffle, the second purification component includes a second purification tank, a pull rod, a chassis and an activated carbon ring bag, and the second purification tank is communicated with the top first purification tank. The vacuum pump is provided to facilitate the extraction of gas inside the tank body, so that the inside of the tank body is in a negative pressure state. The first branch pipe is provided to facilitate the transportation of harmful gases to the first purification component and the second purification component. The second branch pipe is provided to facilitate the direct discharge of gas when there is no polluted gas in the absorbed gas. The first purification component is provided to facilitate the purification of harmful gases such as hydrogen sulfide, nitrogen oxides, formaldehyde, ammonia, etc. through specific solutions. The second purification component is provided to facilitate the adsorption and purification of volatile organic compounds, such as VOCs.

[0008] Preferably, the connecting pipe is fixedly connected to the lower surface of the first purification tank, the lowest connecting pipe is connected to the first branch pipe, the bottom of the remaining connecting pipes is fixedly connected to the first purification tank below, and a one-way valve is arranged in the middle of the connecting pipe.

[0009] Preferably, the outflow pipe is fixedly connected to the lower surface of the first purification tank, a stop valve is arranged in the middle of the outflow pipe, the gas separation baffle is fixedly connected to the bottom of the inner cylindrical surface of the first purification tank, and a plurality of small through holes are arranged on the surface of the gas separation baffle. The gas separation baffle is arranged to facilitate the division of the gas flowing through into a plurality of small pieces, to expand the contact area between the gas and the purification solution, and thus to improve the purification effect, and the outflow pipe is arranged to facilitate the discharge of the purified solution in the first purification tank after use.

[0010] Preferably, the inflow pipe is fixedly connected to the top of the outer cylindrical surface of the first purification tank, the funnel is fixedly connected to the end of the inflow pipe away from the first purification tank, and a stop valve is arranged in the middle of the inflow pipe. The funnel and the inflow pipe are arranged to facilitate the addition of new purification solution into the first purification tank.

[0011] Preferably, the chassis is slidably connected to the inner cylindrical surface of the second purification tank, the pull rod is fixedly connected to the upper surface of the center of the chassis, the activated carbon ring bag is arranged above the second purification tank, the pull rod passes through the center of the activated carbon ring bag, and the activated carbon ring bag is arranged inside. The pull rod and chassis are arranged to facilitate the rapid pulling out of the activated carbon ring bag so as to achieve its replacement, and the activated carbon ring bag is arranged to facilitate the use of the activated carbon inside it to absorb volatile organic compounds in harmful gases.

[0012] Preferably, the inner cylindrical surface of the tank body is slidably connected to the filter frame, the central upper surface of the filter frame is fixedly connected to the fixing column, and the inner cylindrical surface of the tank body is fixedly connected to the second support plate near the top. The filter frame is provided to facilitate filtering of solid impurities in the pollutants sucked into the tank body to avoid clogging the pipeline when these impurities are discharged.

[0013] Preferably, the upper surface of the second support plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a take-up wheel, a pull rope is provided on the take-up wheel, the pull rope passes through the second support plate, and the other end of the pull rope is fixedly connected to a fixed column. The motor is provided to facilitate the rotation of the take-up wheel, thereby pulling the filter frame.

[0014] Preferably, a feed pipe is provided on the cylindrical surface of the tank body, and the height of the feed pipe is lower than the height of the air outlet pipe.

[0015] Preferably, the cylindrical surface of the tank body is fixedly connected to the first support plate, the bottom of the vacuum pump is fixedly connected to the upper surface of the first support plate, and a cover plate is provided on the upper surface of the tank body.

[0016] Preferably, a water outlet pipe is provided at the bottom of the tank body, a stop valve is provided in the middle of the water outlet pipe, and supporting legs are fixedly connected to the lower surface of the tank body.

[0017] Working principle: When in use, connect the pipeline to the feed pipeline to determine whether there is polluted gas in the space where the pollutants to be extracted are located. If there is no harmful gas, close the stop valve on the first branch pipe, and open the stop valve on the second branch pipe, then start the vacuum pump to extract the gas inside the tank, so that the inside of the tank is in a negative pressure state, thereby sucking the pollutants into the tank, the pollutants will be filtered through the filter frame, and the gas will flow out from the second branch pipe; if there is harmful gas, close the stop valve on the second branch pipe, open the stop valve on the first branch pipe, and then add the corresponding purification solution to the first purification tank in each of the multiple first purification components according to the type of harmful gas. During the operation of the vacuum pump, the extracted gas will flow from the first branch pipe into the first purification tank. When the gas passes through the purification solution in the first purification tank, the corresponding harmful gas will be purified. When the gas flows from the top first purification tank into the second purification tank, the volatile organic compounds in the gas will be absorbed by the activated carbon, and then the discharged gas will flow into the external atmosphere.

[0018] (III) Beneficial effects

[0019] The present invention provides a negative pressure tank cleaning gas recovery and environmental protection treatment device. It has the following beneficial effects:

[0020] 1. By using the first purification component and the second purification component, the harmful gases absorbed in the process of absorbing pollutants can be purified, thereby preventing the polluted gases from flowing into the air and causing pollution to the environment.

[0021] 2. Multiple first purification components can carry different purification solutions according to the types of pollutants, so that the equipment can be used to purify different types of harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0023] Figure 2 A schematic diagram of the internal structure of a tank body of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0024] Figure 3 This is a schematic structural diagram of a first purification component of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the first purification tank of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0026] Figure 5 This is a schematic structural diagram of a second purification component of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the installation position structure of an activated carbon ring bag of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0028] Figure 7 This is a schematic structural diagram of the chassis and the tie rod matching portion of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention;

[0029] Figure 8 This is an enlarged view of the local structure at location A of a negative pressure tank cleaning gas recovery and environmental protection treatment device proposed by the present invention.

[0030] Among them, 1. tank body; 101. feed pipe; 102. air outlet pipe; 103. water outlet pipe; 2. cover plate; 3. first support plate; 4. vacuum pump; 5. exhaust main pipe; 6. first branch pipe; 7. second branch pipe; 8. first purification component; 801. first purification tank; 802. inflow pipe; 803. outflow pipe; 804. connecting pipe; 805. funnel; 806. air separation baffle; 9. second purification component; 901. second purification tank; 902. pull rod; 903. chassis; 904. activated carbon ring bag; 10. support leg; 11. filter frame; 12. fixing column; 13. pull rope; 14. second support plate; 15. take-up wheel; 16. motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example:

[0033] like Figure 1-8As shown, the embodiment of the present invention provides a negative pressure tank cleaning gas recovery and environmental protection treatment device, including a tank body 1, a gas outlet pipe 102 is arranged on the cylindrical surface of the tank body 1 near the top edge, the end of the gas outlet pipe 102 away from the tank body 1 is fixedly connected to the vacuum pump 4, the cylindrical surface of the tank body 1 is fixedly connected to the first support plate 3, the bottom of the vacuum pump 4 is fixedly connected to the upper surface of the first support plate 3, a cover plate 2 is arranged on the upper surface of the tank body 1, the other end of the vacuum pump 4 is fixedly connected to the exhaust main pipe 5, the end of the exhaust main pipe 5 away from the vacuum pump 4 is provided with a first branch pipe 6 and a second branch pipe 7, and the first branch pipe 6 and the second branch pipe 7 are provided with A stop valve, a first purification component 8 is arranged at one end of the first branch pipe 6 away from the exhaust main pipe 5, there are multiple first purification components 8 and they are connected in sequence up and down, a second purification component 9 is arranged on the upper surface of the top first purification component 8, the first purification component 8 includes a first purification tank 801, an inlet pipe 802, an outlet pipe 803, a connecting pipe 804, a funnel 805 and an air separation baffle 806, the second purification component 9 includes a second purification tank 901, a pull rod 902, a chassis 903 and an activated carbon ring bag 904, and the second purification tank 901 is connected to the top first purification tank 801.

[0034] A feed pipe 101 is arranged on the cylindrical surface of the tank body 1, and the height of the feed pipe 101 is lower than the height of the air outlet pipe 102. A water outlet pipe 103 is arranged at the bottom of the tank body 1, and a stop valve is arranged in the middle of the water outlet pipe 103. The lower surface of the tank body 1 is fixedly connected to the support leg 10.

[0035] The chassis 903 is slidably connected to the inner cylindrical surface of the second purification tank 901, the pull rod 902 is fixedly connected to the upper surface of the center of the chassis 903, the activated carbon ring bag 904 is arranged above the second purification tank 901, and the pull rod 902 passes through the center of the activated carbon ring bag 904. Activated carbon is arranged inside the activated carbon ring bag 904. The activated carbon needs to be replaced after being used for a period of time. At this time, the pull rod 902 is pulled to drive the chassis 903 to move up, so as to take out the activated carbon ring bag 904. After replacing the new activated carbon ring bag 904 filled with activated carbon, the pull rod 902 and the chassis 903 can be put back to their original positions.

[0036] The connecting pipe 804 is fixedly connected to the lower surface of the first purification tank 801 , the lowest connecting pipe 804 is connected to the first branch pipe 6 , the bottom of the remaining connecting pipes 804 is fixedly connected to the first purification tank 801 below, and a one-way valve is arranged in the middle of the connecting pipe 804 .

[0037] The outflow pipe 803 is fixedly connected to the lower surface of the first purification tank 801, and a stop valve is arranged in the middle of the outflow pipe 803. The gas separation baffle 806 is fixedly connected to the bottom of the inner cylindrical surface of the first purification tank 801, and a plurality of small through holes are arranged on the surface of the gas separation baffle 806. The inflow pipe 802 is fixedly connected to the top of the outer cylindrical surface of the first purification tank 801. The funnel 805 is fixedly connected to the end of the inflow pipe 802 away from the first purification tank 801, and a stop valve is arranged in the middle of the inflow pipe 802. The stop valve of the inflow pipe 802 is only opened when the purification solution is added to the first purification tank 801, and is in a closed state at other times. The stop valve of the outflow pipe 803 is only opened when the purification solution in the first purification tank 801 is discharged, and is in a closed state at other times.

[0038] The inner cylindrical surface of the tank body 1 is slidably connected to the filter frame 11, and the central upper surface of the filter frame 11 is fixedly connected to the fixing column 12. The inner cylindrical surface of the tank body 1 is fixedly connected to the second support plate 14 near the top, and the upper surface of the second support plate 14 is fixedly connected to the motor 16. The output end of the motor 16 is fixedly connected to the take-up wheel 15, and a pull rope 13 is provided on the take-up wheel 15. The pull rope 13 passes through the second support plate 14, and the other end of the pull rope 13 is fixedly connected to the fixing column 12. After a certain amount of solid impurities are accumulated inside the filter frame 11, the cover plate 2 is opened, and the motor 16 is started to drive the take-up wheel 15 to rotate, thereby pulling the pull rope 13 to drive the filter frame 11 to move up. After the filter frame 11 moves up to a suitable height, the impurities inside the filter frame 11 can be taken out, and then the motor 16 is rotated in the opposite direction, and the filter frame 11 moves down under the action of gravity until it returns to its original position.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A negative pressure tank cleaning gas recovery and environmental protection treatment device, comprising a tank body (1), characterized in that: An air outlet pipe (102) is arranged near the top edge of the cylindrical surface of the tank body (1); one end of the air outlet pipe (102) away from the tank body (1) is fixedly connected to the vacuum pump (4); the other end of the vacuum pump (4) is fixedly connected to the exhaust main pipe (5); a first branch pipe (6) and a second branch pipe (7) are arranged at the end of the exhaust main pipe (5) away from the vacuum pump (4); the first branch pipe (6) and the second branch pipe (7) are provided with stop valves; a first purification component (8) is arranged at the end of the first branch pipe (6) away from the exhaust main pipe (5); the number of the first purification components (8) is Multiple purification components (9) are connected in sequence up and down, and the upper surface of the top first purification component (8) is provided with a second purification component (9), the first purification component (8) includes a first purification tank (801), an inlet pipe (802), an outlet pipe (803), a connecting pipe (804), a funnel (805) and an air separation baffle (806), the second purification component (9) includes a second purification tank (901), a pull rod (902), a bottom plate (903) and an activated carbon ring bag (904), and the second purification tank (901) is connected to the top first purification tank (801).

2. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: The connecting pipe (804) is fixedly connected to the lower surface of the first purification tank (801), the lowest connecting pipe (804) is connected to the first branch pipe (6), and the bottoms of the remaining connecting pipes (804) are fixedly connected to the first purification tank (801) below, and a one-way valve is arranged in the middle of the connecting pipe (804).

3. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: The outflow pipe (803) is fixedly connected to the lower surface of the first purification tank (801), a stop valve is arranged in the middle of the outflow pipe (803), the gas separation baffle (806) is fixedly connected to the bottom of the inner cylindrical surface of the first purification tank (801), and a plurality of small through circular holes are arranged on the surface of the gas separation baffle (806).

4. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: The inflow pipe (802) is fixedly connected to the top of the outer cylindrical surface of the first purification tank (801), the funnel (805) and the end of the inflow pipe (802) away from the first purification tank (801) are fixedly connected, and a stop valve is arranged in the middle of the inflow pipe (802).

5. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: The chassis (903) is slidably connected to the inner cylindrical surface of the second purification tank (901), the pull rod (902) is fixedly connected to the upper surface at the center of the chassis (903), the activated carbon ring bag (904) is arranged above the second purification tank (901), the pull rod (902) passes through the center of the activated carbon ring bag (904), and activated carbon is arranged inside the activated carbon ring bag (904).

6. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: The inner cylindrical surface of the tank body (1) is slidably connected to the filter frame (11), the central upper surface of the filter frame (11) is fixedly connected to the fixing column (12), and the inner cylindrical surface of the tank body (1) is fixedly connected to the second support plate (14) near the top.

7. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 6 is characterized by: The upper surface of the second support plate (14) is fixedly connected to a motor (16), the output end of the motor (16) is fixedly connected to a take-up wheel (15), a pull rope (13) is provided on the take-up wheel (15), the pull rope (13) passes through the second support plate (14), and the other end of the pull rope (13) is fixedly connected to a fixed column (12).

8. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: A material inlet pipe (101) is provided on the cylindrical surface of the tank body (1), and the height of the material inlet pipe (101) is lower than the height of the air outlet pipe (102).

9. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: The cylindrical surface of the tank body (1) is fixedly connected to a first support plate (3), the bottom of the vacuum pump (4) is fixedly connected to the upper surface of the first support plate (3), and a cover plate (2) is provided on the upper surface of the tank body (1).

10. The negative pressure tank cleaning gas recovery and environmental protection treatment device according to claim 1 is characterized by: A water outlet pipe (103) is arranged at the bottom of the tank body (1), a stop valve is arranged in the middle of the water outlet pipe (103), and a support leg (10) is fixedly connected to the lower surface of the tank body (1).

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