CN215138514U - Tail gas filter equipment and tail gas processing system - Google Patents

Abstract

The utility model provides a tail gas filtering device and a tail gas treatment system, which comprises a washing tank, a decomposition tank, an adsorption tank, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, wherein the washing tank is internally provided with a first filter element, the decomposition tank is internally provided with a second filter element, and the adsorption tank is internally provided with a filtering component; the one end setting of third pipeline is in the outside of washing jar, the other end of third pipeline extends to the inside of washing jar and passes the top of first filter core and continues to extend to the bottom of first filter core downwards, and the one end of first pipe connection fourth pipeline is passed through in the export on the washing jar, and the other end of fourth pipeline extends to the inside of decomposition jar and passes the top of second filter core and continues to extend to second filter core bottom downwards, and the import of second pipe connection adsorption tanks is passed through in the export of decomposition jar, the utility model discloses increase the two-stage treatment before adsorption treatment, improved the quality of tail gas greatly through tertiary treatment, avoided secondary pollution.

Description

Tail gas filter equipment and tail gas processing system

Technical Field

The utility model relates to a gas equipment technical field specifically, relates to a tail gas filter equipment and tail gas processing system.

Background

With the common domestic application of gas, people pay more and more attention to the use safety of gas. How to make the colorless and odorless gas to be discovered in time when the gas leaks is very important. The gas leakage can not be found in time or the leakage can cause big and small safety accidents in the odorizing process for many times at home and abroad. The odorizing agent is added into the fuel gas, so that the occurrence of poisoning and explosion accidents can be prevented and reduced. If leakage occurs in the conveying process, workers can find the leakage in time, and leakage detection is facilitated; if gas leakage occurs in the house of the residents, the residents can feel timely.

Tetrahydrothiophene (THT for short) commonly used by most gas enterprise gate stations in China is generally 200kg and 50kg of iron barreled and sealed storage tanks, and a single adsorbent is used for absorbing tail gas discharged by an odorizing agent storage tank and absorbing outside air so as to solve the problem of excessively high odor concentration required by daily odorizing.

However, THT is malodorous and very volatile. The THT added by a gas company in natural gas is different according to the distribution, the length and the old and the new of a pipeline, and is generally 20-40 mg/cubic gas. In the case of a gas leak in a residential home, the dense "coal smell" can be heard, and when the tetrahydrothiophenes are present in pure liquid form, the perceived taste is more unacceptable.

The tail gas exhausted from the storage tank is adsorbed by the activated carbon in a common gas valve station, so that the THT tail gas is adsorbed by the activated carbon tank, and even some gas companies can directly discharge the THT tail gas to the air. These processes inevitably result in significant leakage of the highly volatile THT flavor into the air.

The existing tail gas processor generally has the defects of incomplete tail gas treatment and serious repeated pollution caused by overlarge secondary pollution, small adsorption capacity, so that a new treatment device is required to be searched to solve the problems.

Patent document CN211497532U discloses a natural gas pipeline filter, including sealed shell and sealed shell one side fixed connection's injection pipeline and opposite side fixed connection's discharge line, the both sides welding of sealed shell has sealed dish, the injection pipeline is connected through sealed dish with sealed shell and discharge line, sealed dish junction all is provided with the sealing strip, inside one side swing joint of sealed shell has the processing core, opposite side swing joint has the filter core, it all adopts circular form setting with the filter core to handle the core, but this design still can not realize the effective processing to the gas station tail gas, the structure is unreasonable.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a tail gas filter equipment and tail gas processing system.

According to the utility model, the tail gas filtering device comprises a washing tank, a decomposition tank, an adsorption tank, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline;

a first accommodating space is arranged in the washing tank, and a first filter element is arranged in the first accommodating space;

a second accommodating space is formed in the decomposition tank, and a second filter element is arranged in the second accommodating space;

a filtering component is arranged in the adsorption tank;

one end of the third conduit is disposed outside of the wash tank, and the other end of the third conduit extends into the interior of the wash tank and continues down through the top of the first filter cartridge to the bottom of the first filter cartridge;

an outlet on the wash tank is connected to one end of a fourth conduit through a first conduit, the other end of the fourth conduit extending into the interior of the decomposition tank and continuing down through the top of the second filter cartridge to the bottom of the second filter cartridge;

and the outlet of the decomposition tank is connected with the inlet of the adsorption tank through a second pipeline.

Preferably, the lower part of the first filter element is a cylinder structure and is used for containing detergent;

the upper portion of first filter core is provided with first venthole along circumference.

Preferably, the lower part of the second filter element is a cylinder structure and is used for containing a decomposing agent;

and a second air outlet hole is formed in the upper part of the second filter element along the circumferential direction.

Preferably, the filter assembly comprises a third bracket, and a support carrier is mounted on the third bracket and used for carrying activated carbon.

Preferably, the support carrier is a steel wire mesh, and the steel wire mesh can be one layer or multiple layers.

Preferably, the washing tank comprises a first tank body and a first seal head, and the first seal head is detachably mounted on the first tank body;

the decomposing tank comprises a second tank body and a second seal head, and the second seal head is detachably arranged on the second tank body;

the adsorption tank comprises a third tank body and a third seal head, and the third seal head is detachably arranged on the third tank body.

Preferably, the other end of the third pipeline is arranged in a gap with the inner wall of the bottom end of the first filter element;

the other end of the fourth pipeline is arranged in a gap with the inner wall of the bottom end of the second filter element.

Preferably, a first drain outlet is arranged at the bottom of the washing tank, and a first pressure gauge is arranged at the top of the washing tank;

a second sewage draining outlet is formed in the bottom of the decomposition tank, and a second pressure gauge is arranged at the top of the decomposition tank;

and a third pressure gauge and a discharge port are arranged on the adsorption tank.

Preferably, the top of the washing tank is provided with a first purification dispersion opening;

the top of the decomposition tank is provided with a second purification and dispersion opening;

a flame arrester is arranged on the discharge port.

According to the utility model provides a pair of tail gas treatment system adopts tail gas filter equipment.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses increase the two-stage treatment before the adsorption treatment, improved the quality of tail gas greatly through tertiary treatment, avoided secondary pollution.

2. The utility model discloses a detachable mounting means, the convenient maintenance has improved the convenience of changing the adsorbent and maintaining the change equipment, can effectively guarantee the operating efficiency of equipment.

3. The utility model discloses the structure of well first filter core, second filter core can make tail gas and detergent, decomposition agent fully contact, has improved treatment quality and efficiency, and one deck or multilayer can be laid as required to the active carbon simultaneously, and the structure is nimble, and the practicality is strong.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a third pipeline;

fig. 3 is a schematic view of the installation of the bottom end of the third conduit in the first cartridge.

The figures show that:

first body 16 of washing tank 1

First end enclosure 17 of decomposition tank 2

Adsorption tank 3 second tank 18

Second end socket 19 of first pipeline 4

Second pipeline 5 third tank 20

Third pipeline 6 third head 21

Fourth pipe 7 first drain port 22

First accommodation space 8 and second sewage draining outlet 23

First filter element 9 and first pressure gauge 24

The first purification and dispersion opening 25 of the second accommodation space 10

Second filter element 11 and second pressure gauge 26

Second purge dispersion port 27 of filter assembly 12

Detergent 13 third pressure gauge 28

Discharge port 29 for decomposer 14

Activated carbon 15

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

The utility model provides a tail gas filtering device, as shown in figure 1, comprising a washing tank 1, a decomposition tank 2, an adsorption tank 3, a first pipeline 4, a second pipeline 5, a third pipeline 6 and a fourth pipeline 7, wherein a first accommodating space 8 is arranged in the washing tank 1, a first filter element 9 is arranged in the first accommodating space 8, and the first filter element 9 is detachably arranged in the washing tank 1 through a first bracket; a second accommodating space 10 is arranged in the decomposition tank 2, a second filter element 11 is arranged in the second accommodating space 10, and the second filter element 11 is detachably mounted in the decomposition tank 2 through a second support. Be provided with filter assembly 12 in the adsorption tank 3, filter assembly 12 includes the third support, detachable installs the support carrier on the third support, the support carrier is used for bearing active carbon 15. The support carrier preferably adopts the wire net, and active carbon 15 spreads on the wire net, and the tail gas of purification upwards adsorbs through active carbon 15 from the hole of bottom through the wire net, the wire net can set up one deck or multilayer according to the flow of handling tail gas to satisfy the requirement.

Specifically, the washing tank 1 comprises a first tank body 16 and a first seal head 17, the first seal head 17 is preferably detachably mounted on the first tank body 16 by adopting a stud bolt, the decomposing tank 2 comprises a second tank body 18 and a second seal head 19, and the second seal head 19 is preferably detachably mounted on the second tank body 18 by adopting a stud bolt; adsorption tank 3 includes the third jar of body 20 and third head 21, the preferred stud detachable that adopts of third head 21 is installed on the third jar of body 20, and wherein, first filter core 9, second filter core 11, support carrier all adopt the detachable mode to fix, and dismantlement that can be convenient when needs are overhauld is changed, improves maintenance efficiency, improves the convenience of dismantling, maintaining or changing, improve equipment's the rate of driving.

Further, one end of the third pipe 6 is disposed outside the washing tank 1 and serves as an inlet of the exhaust gas to be treated, and is connected to an outlet of a storage tank containing the exhaust gas to be treated, the other end of the third pipe 6 extends into the washing tank 1 and continues downwards through the top of the first filter element 9 to the bottom of the first filter element 9, in a preferred example, the lower portion of the first filter element 9 is a cylindrical structure and is used for containing the detergent 13, the exhaust gas to be treated enters from the top end of the third pipe 6, flows out from the bottom of the third pipe 6 and reaches the top of the detergent 13 from the bottom of the first filter element 9 in a bubbling manner, the upper portion of the first filter element 9 is circumferentially provided with first gas outlet holes, and the number of the first gas outlet holes may be one or multiple.

Furthermore, the outlet of the washing tank 1 is connected with one end of the fourth pipeline 7 through the first pipeline 4, the other end of the fourth pipeline 7 extends into the decomposition tank 2 and passes through the top of the second filter element 11 to continue to the bottom of the second filter element 11, the lower part of the second filter element 11 is preferably a cylinder structure for containing the decomposing agent 14, the upper part of the second filter element 11 is provided with a second air outlet along the circumferential direction, and the number of the second air outlets can be one or more. The tail gas is washed by the washing agent 13 and then flows out from the first air outlet and flows out from the bottom of the decomposer 14 in a bubbling mode through the outlet on the washing tank 1 and the first pipeline 4 and flows out through the second air outlet.

In a preferred embodiment, the other end of the third pipeline 6 is arranged in a gap with the inner wall at the bottom end of the first filter element 9, as shown in fig. 3, and the other end of the fourth pipeline 7 is arranged in a gap with the inner wall at the bottom end of the second filter element 11, so that the tail gas can reach the bottoms of the first filter element 9 and the second filter element 11 and flow out from the bottoms to be sufficiently contacted with the detergent and the decomposer, the purification effect is improved, and the gas blockage caused by the close distance between the pipeline and the inner wall is avoided. In a variation, the other end of the third pipeline 6 and the other end of the fourth pipeline 7 are both 45 ° beveled, as shown in fig. 2, which is beneficial for smooth outflow of the exhaust gas.

Specifically, the export of decomposition jar 2 passes through second pipeline 5 and connects the import of adsorption tank 3, and the tail gas that enters into adsorption tank 3 from the bottom entry of decomposition jar 2 through the export of decomposition jar 2, second pipeline 5 through decomposing agent processing's of decomposition jar 2 purifies tail gas after the active carbon adsorption effect.

Specifically, the bottom of the washing tank 1 is provided with a first drain port 22 for draining the dirt in the washing tank 1, especially for use during maintenance or after the equipment is abnormal. The top of the washing tank 1 is provided with a first pressure gauge 24 and a first purification and dispersion port 25; the first pressure gauge 24 is used for monitoring the air inlet pressure of the third pipeline 6, so that the washing tank 1 is under normal pressure load, and the pressure inside the washing tank 1 is too high due to too high pressure, so that the pressure is suppressed, and normal treatment is affected. First purification is dispersed mouthful 25 and is in the closed condition at normal purification treatment in-process, and the inside replacement of equipment is used when can be used to parking, perhaps empties etc. temporarily, and the preferred spark arrester of installing on the first purification is dispersed mouthful, danger when can effectively reduce combustible gas and discharge.

The bottom of decomposition tank 2 is provided with second drain 23, and second drain 23 is used for the emission of the inside filth of decomposition tank 2, especially overhauls the in-process or uses after unusual appearing in the equipment, the top of decomposition tank 2 is provided with second manometer 26, second and purifies the mouth 27 of loosing, and wherein second manometer 26, second purify the effect of loosing mouth 27 respectively with first manometer 24, first purification mouth 25 effect of loosing similar, and it is no longer repeated here.

Be provided with third manometer 28 and discharge port 29 on the adsorption tank 3, discharge port 29 is the discharge port after the tail gas treatment finishes, be provided with the spark arrester on the discharge port 29, set up the effect that the spark arrester can play back the back-fire relief under the emergency to combustible gas's emission, be favorable to the inside safety of device.

The invention also provides a tail gas treatment system, the tail gas filtering device is adopted, the tail gas can be fully contacted with a detergent and a decomposer by adopting the first filter element 9 and the second filter element 11 in the device, the treatment quality and efficiency are improved, and meanwhile, one or more layers of activated carbon 15 can be laid as required, so that the treatment quality of the tail gas is greatly improved.

The working principle of the utility model is as follows:

sealed storage tank is handled and is carried to washing tank 1 in through third pipeline 6 with 0.02Mpa pressure, the variation range of pressure is carried in monitoring through the manometer, provide steady velocity of flow for washing tank 1, the tail gas that gets into in washing tank 1 receives the dispersion of stopping of first filter core 9 and fully reacts with detergent 13, the tail gas flow that upwards derives preliminary washing through first venthole gets into decomposition tank 2 through first pipeline 4, the tail gas that gets into second filter core 14 in decomposition tank 2 receives the dispersion of stopping of second filter core 11 and fully reacts with decomposer 14, upwards derive the tail gas of decomposition through the second venthole, gas flow through second pipeline 5, reach in the adsorption tank 3 and pass through active carbon 13 on the filter assembly 12 and discharge in the air through fire-arrest respirator safety, environmental protection.

The device and the system in the utility model can ensure that the abrasion degree is less than 3 percent under the long-term service condition of 5-10 years, and the device is safe and efficient, and the tail gas treatment quality is good.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. The tail gas filtering device is characterized by comprising a washing tank (1), a decomposition tank (2), an adsorption tank (3), a first pipeline (4), a second pipeline (5), a third pipeline (6) and a fourth pipeline (7);

a first accommodating space (8) is arranged in the washing tank (1), and a first filter element (9) is arranged in the first accommodating space (8);

a second accommodating space (10) is arranged in the decomposition tank (2), and a second filter element (11) is arranged in the second accommodating space (10);

a filtering component (12) is arranged in the adsorption tank (3);

one end of the third pipeline (6) is arranged outside the washing tank (1), and the other end of the third pipeline (6) extends to the inside of the washing tank (1) and passes through the top of the first filter element (9) and continues downwards to the bottom of the first filter element (9);

an outlet on the washing tank (1) is connected with one end of the fourth pipeline (7) through a first pipeline (4), and the other end of the fourth pipeline (7) extends to the inside of the decomposition tank (2) and passes through the top of the second filter element (11) to continue downwards to the bottom of the second filter element (11);

the outlet of the decomposition tank (2) is connected with the inlet of the adsorption tank (3) through a second pipeline (5).

2. The tail gas filtering device according to claim 1, characterized in that the lower part of the first filter element (9) is a cylinder structure for containing a detergent (13);

and a first air outlet hole is formed in the upper part of the first filter element (9) along the circumferential direction.

3. The tail gas filtering device according to claim 1, characterized in that the lower part of the second filter element (11) is a cylinder structure for containing a decomposer (14);

and a second air outlet hole is formed in the upper part of the second filter element (11) along the circumferential direction.

4. The exhaust gas filtering device according to claim 1, characterized in that the filter assembly (12) comprises a third support on which a support carrier is mounted for carrying activated carbon (15).

5. The exhaust gas filtering device according to claim 4, wherein the support carrier is a steel wire mesh, and the steel wire mesh can be one or more layers.

6. The tail gas filtering device according to claim 1, characterized in that the washing tank (1) comprises a first tank body (16) and a first seal head (17), wherein the first seal head (17) is detachably mounted on the first tank body (16);

the decomposing tank (2) comprises a second tank body (18) and a second seal head (19), and the second seal head (19) is detachably arranged on the second tank body (18);

the adsorption tank (3) comprises a third tank body (20) and a third seal head (21), wherein the third seal head (21) is detachably arranged on the third tank body (20).

7. The exhaust gas filtering device according to claim 1, wherein the other end of the third duct (6) is arranged in a gap with the inner wall of the bottom end of the first filter element (9);

the other end of the fourth pipeline (7) is arranged with the gap of the inner wall at the bottom end of the second filter element (11).

8. The tail gas filtering device according to claim 1, characterized in that a first drain outlet (22) is arranged at the bottom of the washing tank (1), and a first pressure gauge (24) is arranged at the top of the washing tank (1);

a second sewage draining outlet (23) is formed in the bottom of the decomposition tank (2), and a second pressure gauge (26) is arranged at the top of the decomposition tank (2);

and a third pressure gauge (28) and a discharge port (29) are arranged on the adsorption tank (3).

9. The tail gas filtering device according to claim 8, characterized in that the top of the washing tank (1) is provided with a first purification dispersion opening (25);

the top of the decomposition tank (2) is provided with a second purification and dispersion opening (27);

a flame arrester is arranged on the discharge opening (29).

10. An exhaust gas treatment system, characterized in that the exhaust gas filter device according to any one of claims 1 to 9 is used.

Images