CN221107485U - Waste gas filtering equipment - Google Patents

Abstract

The application relates to the technical field of waste gas filtration, in particular to waste gas filtration equipment which comprises a gas collecting device, a gas filtering device and an air pump, wherein a first pipeline is communicated with the gas collecting device, a second pipeline is communicated between the gas collecting device and the gas filtering device, a third pipeline is communicated between the gas filtering device and the air pump, a first valve is arranged on the first pipeline, and a second valve and a third valve are arranged on the second pipeline. The present application has an effect of reducing leakage of exhaust gas at the time of replacement of the gas collecting device.

Description

Waste gas filtering equipment

Technical Field

The application relates to the technical field of waste gas filtration, in particular to waste gas filtration equipment.

Background

Exhaust gas filtration is a treatment method for purifying harmful gases and particulate matters in air. It is generally used in industrial production, automobile exhaust, coal-fired power plant, etc. and is aimed at reducing air pollution and protecting environment and human health.

In order to realize exhaust gas filtration, exhaust gas filtration equipment is generally adopted to carry out exhaust gas filtration, and common exhaust gas filtration equipment comprises a gas collection device, a gas filtration device, an air pump and a pipeline which are sequentially communicated, wherein the gas collection device collects external exhaust gas, the exhaust gas can be one of industrial exhaust gas, nuclear exhaust gas and other exhaust gas, and the collected exhaust gas flows into the gas filtration device to be filtered. Finally, the filtered waste gas is pumped out by a gas pump.

When the gas collecting device needs to be replaced, the gas collecting device needs to be detached, and leakage of waste gas is easy to cause in the detaching process, so that air pollution is caused.

Disclosure of utility model

The object of the present application is to provide an exhaust gas filtering apparatus that reduces the possibility of exhaust gas leakage when replacing a gas collecting device.

The application provides an exhaust gas filtering device which adopts the following technical scheme:

The utility model provides an exhaust gas filtering equipment, includes gas collection device, gas filtering device and air pump, the last intercommunication of gas collection device has first pipeline, gas collection device with the intercommunication has the second pipeline between the gas filtering device, gas filtering device with the intercommunication has the third pipeline between the air pump, install first valve on the first pipeline, install second valve and third valve on the second pipeline.

Through adopting above-mentioned technical scheme, through establishing first valve, second valve and third valve, when gas collection device is dismantled to needs, close first valve, second valve and third valve to make gas collection device seal, dismantle first valve and second valve together with gas collection device again, gas collection device is sealed by first valve and second valve this moment, has reduced gas collection device and has revealed the possibility of waste gas, and gas filtration device is sealed by the third valve, has reduced gas filtration device and has had residual waste gas and lead to the possibility that waste gas revealed.

Optionally, a fourth valve is installed on the third pipeline.

Through adopting above-mentioned technical scheme, when gas filter equipment is dismantled to needs, close first valve, second valve, third valve and fourth valve, dismantle third valve, fourth valve together with gas filter equipment this moment to seal gas filter equipment, reduce the possibility that waste gas revealed, can change the maintenance to the gas filter equipment who dismantles, convenient operation.

Optionally, a pressure sensor is installed on the gas collecting device.

Through adopting above-mentioned technical scheme, through installing pressure sensor on gas collection device, the atmospheric pressure of real-time supervision gas collection device conveniently controls the waste gas volume in the gas collection device, realizes that the waste gas volume of filtering at every turn is in a stable value, reduces the waste gas volume and surpasss gas filtration device's filtration limit and lead to the condition emergence that the filter effect is relatively poor.

Optionally, the device further comprises a tail gas treatment device for detecting gas, and the tail gas treatment device is respectively communicated with the air pump and the gas collection device.

Through adopting above-mentioned technical scheme, gas is through the air pump suction to tail gas processing apparatus in detecting after filtering, and after detecting qualified, gas discharges, if detect unqualified then flow into gas collection device again through tail gas processing apparatus and filter once more, has reduced the condition production of exhaust pollution environment.

Optionally, a connection component is disposed between the first pipeline and the gas collecting device, and the first pipeline is detachably connected with the gas collecting device through the connection component.

Through adopting above-mentioned technical scheme, through coupling assembling's setting, make first pipeline and gas collection device detachable connection to realize the separation of first pipeline and gas collection device, conveniently change first pipeline.

Optionally, the connecting assembly comprises a connecting sleeve connected to the gas collecting device,

The clamping groove is formed in the inner wall of the connecting sleeve, an elastic snap ring is fixedly connected to the outer side wall of the first pipeline, and when the elastic snap ring is inserted into the connecting sleeve, the elastic snap ring can be in interference fit with the clamping groove.

Through adopting above-mentioned technical scheme, through the cooperation use of snap ring and draw-in groove, realize that first pipeline and gas collecting device's connection, connect simple swift, convenient to use, and snap ring and draw-in groove interference fit, the leakproofness is higher.

Optionally, an air vent groove is formed in one surface of the connecting sleeve, which is close to the gas collecting device, and the air vent groove is communicated with the gas collecting device;

The inner wall of the connecting sleeve is provided with a through hole which is communicated with the ventilation groove;

One end of the connecting sleeve, which is close to the gas collecting device, is fixedly connected with a mounting plate, a sliding plate is connected in a sliding manner, and the peripheral wall of the sliding plate is abutted with the inner peripheral wall of the connecting sleeve;

An elastic piece is arranged between the sliding plate and the mounting plate, one end of the elastic piece is fixedly connected with the mounting plate, and the other end of the elastic piece is fixedly connected with the sliding plate;

the first pipeline side wall is provided with a perforation.

Through adopting above-mentioned technical scheme, when first pipeline inserts the adapter sleeve, perforation and through-hole intercommunication to make gas inflow from first pipeline in the gas collection device, when first pipeline took out the adapter sleeve, the slide was sealed the adapter sleeve, thereby made the gas in the gas collection device be difficult to reveal, reduced when dismantling gas collection device, because of dismantling the mistake, dismantled first pipeline, thereby lead to the condition emergence that waste gas revealed.

Optionally, the connection component is disposed between the second pipeline and the gas collecting device, between the second pipeline and the gas filtering device, and between the third pipeline and the gas filtering device.

Through adopting above-mentioned technical scheme, all be provided with coupling assembling between through between second pipeline and the gas collecting device, between second pipeline and the gas filtering device, between third pipeline and the gas filtering device to in the in-process of dismantling first pipeline, second pipeline and third pipeline, even if dismantle the mistake, and lead to dismantling the position mistake, also be difficult to lead to waste gas leakage, use safelyr.

In summary, the present application includes at least one of the following beneficial technical effects:

1. By arranging the first valve, the second valve and the third valve, when the gas collecting device needs to be disassembled, the first valve, the second valve and the third valve are closed, so that the gas collecting device is closed, the first valve and the second valve are disassembled together with the gas collecting device, at the moment, the gas collecting device is sealed by the first valve and the second valve, the possibility of leakage of waste gas of the gas collecting device is reduced, the gas filtering device is sealed by the third valve, and the possibility of leakage of waste gas caused by residual waste gas of the gas filtering device is reduced;

2. When the gas filtering device needs to be disassembled, the first valve, the second valve, the third valve and the fourth valve are closed, and the third valve and the fourth valve are disassembled together with the gas filtering device at the moment, so that the gas filtering device is sealed, the possibility of leakage of waste gas is reduced, and the disassembled gas filtering device can be replaced and maintained, and is convenient to operate;

3. When the first pipeline is inserted into the connecting sleeve, the through holes are communicated with the through holes, so that gas can flow into the gas collecting device from the first pipeline, when the connecting sleeve is pulled out of the first pipeline, the connecting sleeve is sealed by the sliding plate, so that the gas in the gas collecting device is not easy to leak, and the situation that the waste gas leaks due to the fact that the first pipeline is detached due to detachment errors when the gas collecting device is detached is reduced.

Drawings

FIG. 1 is a schematic view showing the overall structure of an exhaust gas filtering apparatus according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional structural view of an embodiment of the present application for embodying the connection assembly and the internal structure of the first conduit.

In the figure, 1, a user container; 11. a user valve;

2. A gas collection device; 3. a gas filtering device; 4. an air pump;

5. A tail gas treatment device; 51. a collection box; 52. a discharge conduit; 53. a return line;

61. a first pipe; 611. an insertion section; 612. a connection section; 613. an elastic clasp; 614. perforating; 62. a second pipe; 63. a third conduit;

71. A first valve; 72. a second valve; 73. a third valve; 74. a fourth valve;

8. A connection assembly; 81. connecting sleeves; 811. a vent groove; 812. a through hole; 813. a clamping groove; 82. a mounting plate; 83. a slide plate; 84. an elastic member.

Detailed Description

The present application will be described in further detail with reference to fig. 1 to 2.

Example 1:

An exhaust gas filtering device, referring to fig. 1, comprises a gas collecting device 2, a gas filtering device 3, an air pump 4 and a tail gas treatment device 5, wherein a second pipeline 62 is communicated between the gas collecting device 2 and the gas filtering device 3, and a third pipeline 63 is communicated between the gas filtering device 3 and the air pump 4. The tail gas treatment device 5 is communicated with the air pump 4, the gas collection device 2 is communicated with a first pipeline 61, the first pipeline 61 is communicated with the user container 1, and the user valve 11 is arranged on the first pipeline 61 and can control the on-off of the first pipeline 61.

The gas collecting device 2 is vacuumized by the air pump 4, the user valve 11 is opened, so that waste gas flows into the gas collecting device 2 through the first pipeline 61 under the action of negative pressure and flows into the gas filtering device 3 for filtering and purifying, purified waste gas is pumped into the tail gas treating device 5 by the air pump 4, the tail gas treating device 5 detects the gas, if the emission standard is met, the gas is discharged, and if the emission standard is not met, the waste gas flows into the gas collecting device 2 for next filtering.

In this embodiment, the gas collecting device 2 is formed by a box, and in other embodiments, the gas collecting device 2 may be formed by a bottle or other device capable of storing other gases.

The gas collection device 2 is provided with a pressure sensor which detects the gas pressure in the gas collection device 2, and when the gas in the gas collection device 2 reaches a predetermined value, the user valve 11 and the first valve 71 are closed.

In the present embodiment, the gas filtering device 3 adopts an activated carbon filter, and in other embodiments, the gas filtering device 3 may also adopt a filter element filter or other filters capable of filtering exhaust gas.

In this embodiment, the air pump 4 is a rotary vane vacuum pump, and in other embodiments, the air pump 4 may be a chain oil vacuum pump or other pumps capable of performing vacuum pumping.

The exhaust gas treatment device 5 comprises a collecting box 51 and an exhaust gas detector arranged in the collecting box 51, wherein the collecting box 51 is communicated with an exhaust pipeline 52 and a backflow pipeline 53, the exhaust pipeline 52 is communicated with the outside, the backflow pipeline 53 is communicated with the gas collecting device 2, electromagnetic valves are arranged on the exhaust pipeline 52 and the backflow pipeline 53, in an initial state, the two electromagnetic valves are in a closed state, when the exhaust gas in the collecting box 51 reaches the emission standard, the electromagnetic valve on the exhaust pipeline 52 is opened to discharge the exhaust gas, and when the exhaust gas in the collecting box 51 does not reach the emission standard, the electromagnetic valve on the backflow pipeline 53 is opened to enable the exhaust gas to flow back into the gas collecting device 2 for the next filtering.

The first valve 71 is installed on the first pipeline 61, the first valve 71 is detachably connected with the first pipeline 61 through a clamp, the second valve 72 and the third valve 73 are installed on the second pipeline 62, the second valve 72 is detachably connected with the second pipeline 62 through a clamp, the second pipeline 62 is detachably connected with the third valve 73 through a clamp, the fourth valve 74 is installed on the third pipeline 63, and the third pipeline 63 is detachably connected with the fourth valve 74 through a clamp.

In this embodiment, the first valve 71, the second valve 72, the third valve 73 and the fourth valve 74 are all solenoid valves, and in other embodiments, the first valve 71, the second valve 72, the third valve 73 and the fourth valve 74 may be ball valves or other kinds of valves. So long as the on-off of the first, second and third pipes 61, 62 and 63 can be controlled.

When the gas collecting apparatus 2 needs to be detached, the user valve 11, the first valve 71 and the second valve 72 are closed, and the first valve 71 and the second valve 72 are detached together with the gas collecting apparatus 2, thereby reducing the possibility of leakage of exhaust gas. The gas collection device 2 may be sent to a test center to test the composition or other characteristics of the exhaust gas in the gas collection device 2, or the gas collection device 2 may be replaced.

When the gas filtering device 3 needs to be detached, the user valve 11, the first valve 71, the second valve 72, the third valve 73 and the fourth valve 74 are closed, and the third valve 73 and the fourth valve 74 are detached together with the gas filtering device 3, so that the possibility that waste gas remains in the gas filtering device 3 and the waste gas leaks when the gas filtering device 3 is detached is reduced. The gas filtering device 3 can be replaced or maintained after the gas filtering device 3 is detached.

The implementation principle of the embodiment of the application is as follows: when waste gas is required to be filtered, the user valve 11 and the first valve 71 are closed firstly, the second valve 72, the third valve 73 and the fourth valve 74 are opened, the air pump 4 is opened, the gas collecting device 2 is vacuumized, after vacuumization is finished, the fourth valve 74, the third valve 73 and the second valve 72 are closed, the first valve 71 and the user valve 11 are opened, waste gas in the user container 1 flows to the gas collecting device 2 under the action of negative pressure, when the air pressure in the gas collecting device 2 reaches a preset value, the first valve 71 and the user valve 11 are closed, the second valve 72 and the third valve 73 are opened again, the waste gas flows into the gas filtering device 3 for filtering, after gas filtering is finished, the fourth valve 74 is opened, the air pump 4 is opened, the gas in the gas filtering device 3 is pumped into the tail gas processing device 5 for detection, after detection is qualified, the electromagnetic valve on the discharge pipeline 52 is opened, the gas is discharged, the electromagnetic valve on the backflow pipeline 53 is opened, the waste gas is re-flowed into the gas collecting device 2 for filtering next time.

Example 2:

The present embodiment 2 is substantially the same as the embodiment 1 in that a connection member 8 is added.

Referring to fig. 2, a connection assembly 8 is provided between the first pipe 61 and the gas collecting apparatus 2, and the first pipe 61 is detachably connected to the gas collecting apparatus 2 through the connection assembly 8. The connection assembly 8 comprises a connection sleeve 81, the connection sleeve 81 being connected to the gas collection device 2.

The connecting sleeve 81 is inserted into the gas collecting device 2, a clamping groove 813 is formed in the inner wall of one end, far away from the gas collecting device 2, of the connecting sleeve 81, an elastic clamping ring 613 is fixedly connected to the outer side wall, close to the connecting sleeve 81, of the first pipeline 61, and the clamping groove 813 and the elastic clamping ring 613 are annular in the embodiment and are made of rubber materials. When the first pipe 61 is inserted into the connecting sleeve 81, the snap ring 613 is fitted into the catching groove 813 and is interference fit with the catching groove 813.

The surface of the connecting sleeve 81 near the gas collecting device 2 is provided with a ventilation groove 811, the ventilation groove 811 is communicated with the gas collecting device 2, the ventilation groove 811 is formed in an annular shape in the embodiment, the inner wall of the connecting sleeve 81 is provided with a through hole 812, and the through hole 812 is communicated with the ventilation groove 811.

One side of the connecting sleeve 81, which is close to the gas collecting device 2, is fixedly connected with a mounting plate 82, and in the embodiment, the mounting plate 82 is fixedly connected to the inner wall of the connecting sleeve 81 and seals one side of the connecting sleeve 81, which is close to the gas collecting device 2. A sliding plate 83 is slidably arranged in the connecting sleeve 81, in this embodiment, the sliding plate 83 is adapted to the connecting sleeve 81, and the outer peripheral wall of the sliding plate 83 abuts against the inner peripheral wall of the connecting sleeve 81.

An elastic member 84 is disposed between the sliding plate 83 and the mounting plate 82, one end of the elastic member 84 is fixedly connected with the sliding plate 83, the other end of the elastic member 84 is fixedly connected with the mounting plate 82, and in this embodiment, the elastic member 84 adopts a spring. The sliding plate 83 drives the elastic member 84 to deform during sliding.

The outer wall of the first pipeline 61 is provided with a perforation 614 in a penetrating way, and the perforation 614 is positioned between the end surface of the first pipeline 61, which is close to the gas collecting device 2, and the elastic clamping ring 613. In this embodiment, the first pipe 61 includes an insertion section 611 and a connection section 612, the outer diameter of the insertion section 611 is smaller than the outer diameter of the connection section 612, the inner diameter of the insertion section 611 is the same as the inner diameter of the connection section 612, a through hole 614 is formed in the insertion section 611, an elastic snap ring 613 is fixedly connected to the connection section 612, and the outer diameter of the connection section 612 is adapted to the inner diameter of the connecting sleeve 81.

As a preferred embodiment in this example, the above-described connection members 8 are provided between the second pipe 62 and the gas collecting device 2, between the second pipe 62 and the gas filtering device 3, and between the third pipe 63 and the gas filtering device 3.

The implementation principle of the embodiment 2 of the application is as follows: in the initial state, the sliding plate 83 is positioned between the through hole 812 and the end face of one end of the gas collecting device 2 based on the principle of the connecting sleeve 81, so that the gas collecting device 2 is in a sealing state, when the first pipeline 61 is installed, the inserting section 611 is inserted into the connecting sleeve 81, so that the sliding plate 83 is driven to slide, the elastic piece 84 is compressed, when the connecting section 612 is inserted into the connecting sleeve 81, the elastic clamping ring 613 is inserted into the clamping groove 813, so that the first pipeline 61 is fixedly connected with the connecting sleeve 81, at the moment, the through hole 812 is communicated with the perforation 614, so that the first pipeline 61 is communicated with the gas collecting device 2, and waste gas enters the connecting sleeve 81 through the first pipeline 61, passes through the perforation 614, enters the ventilation groove 811 through the through hole 812, and enters the gas collecting device 2 through the ventilation groove 811, so that waste gas circulation is realized. When the first duct 61 is withdrawn, the elastic member 84 is restored, driving the sliding plate 83 to be restored, thereby resealing the gas collecting apparatus 2.

The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (8)

1. The utility model provides an exhaust gas filtering equipment, its characterized in that, including gas collection device (2), gas filtration device (3) and air pump (4), the intercommunication has first pipeline (61) on gas collection device (2), gas collection device (2) with the intercommunication has second pipeline (62) between gas filtration device (3), gas filtration device (3) with the intercommunication has third pipeline (63) between air pump (4), install first valve (71) on first pipeline (61), install second valve (72) and third valve (73) on second pipeline (62).

2. An exhaust gas filtering apparatus according to claim 1, characterized in that the third pipe (63) is provided with a fourth valve (74).

3. An exhaust gas filtering device according to claim 1, characterized in that the gas collecting means (2) is provided with a pressure sensor.

4. An exhaust gas filtering device according to claim 1, further comprising an exhaust gas treatment device (5) for detecting gas, said exhaust gas treatment device (5) being in communication with said air pump (4) and said gas collection device (2), respectively.

5. An exhaust gas filtering apparatus according to claim 1, characterized in that a connection assembly (8) is arranged between the first conduit (61) and the gas collecting device (2), the first conduit (61) being detachably connected to the gas collecting device (2) via the connection assembly (8).

6. An exhaust gas filtering device according to claim 5, characterized in that the connection assembly (8) comprises a connection sleeve (81), the connection sleeve (81) being connected to the gas collecting means (2),

Clamping grooves (813) are formed in the inner wall of the connecting sleeve (81), an elastic clamping ring (613) is fixedly connected to the outer side wall of the first pipeline (61), and when the elastic clamping ring (613) is inserted into the connecting sleeve (81), the elastic clamping ring (613) can be in interference fit with the clamping grooves (813).

7. An exhaust gas filtering apparatus according to claim 6, characterized in that a ventilation groove (811) is provided in a face of the connecting sleeve (81) close to the gas collecting device (2), the ventilation groove (811) being in communication with the gas collecting device (2);

A through hole (812) is formed in the inner wall of the connecting sleeve (81), and the through hole (812) is communicated with the ventilation groove (811);

One end of the connecting sleeve (81) close to the gas collecting device (2) is fixedly connected with a mounting plate (82), a sliding plate (83) is connected in a sliding manner in the connecting sleeve (81), and the peripheral wall of the sliding plate (83) is abutted with the inner peripheral wall of the connecting sleeve (81);

An elastic piece (84) is arranged between the sliding plate (83) and the mounting plate (82), one end of the elastic piece (84) is fixedly connected with the mounting plate (82), and the other end of the elastic piece (84) is fixedly connected with the sliding plate (83);

the side wall of the first pipeline (61) is provided with a perforation (614).

8. An exhaust gas filtering device according to any one of claims 5-7, characterized in that the connection assembly (8) is arranged between the second conduit (62) and the gas collecting means (2), between the second conduit (62) and the gas filtering means (3), and between the third conduit (63) and the gas filtering means (3).