CN218871764U - Hydrogen production tail gas filtering device and hydrogen production system - Google Patents

Abstract

The invention relates to a hydrogen production tail gas filtering device and a hydrogen production system, which comprise a treatment box and a water changing box communicated with the treatment box, wherein the treatment box is provided with a through hole for inserting a gas guide pipe for supplying tail gas, and the treatment box is provided with an exhaust part; the water changing tank is positioned on the upper part of the processing tank and communicated with the processing tank through a pipeline so as to convey liquid to the inside of the processing tank, and a feeding pipe is arranged on the water changing tank. Harmful gas that can produce when making hydrogen according to tail gas passes through the filling tube and adds the sufficient treating agent and the water mixture formation reaction solution in to the water change case, and reaction solution passes through the pipeline flow direction and handles the incasement, and tail gas gets into through the air duct and handles the incasement and react with reaction solution, discharges to the air through exhaust portion behind the tail gas filtration processing to the tail gas emission that produces when having solved the hydrogen causes the problem of pollution to the environment in the air.

Description

Hydrogen production tail gas filtering device and hydrogen production system

Technical Field

The disclosure relates to the technical field of tail gas treatment, in particular to a hydrogen production tail gas filtering device and a hydrogen production system.

Background

Hydrogen is an important chemical raw material and is closely related to the life of people. In China, raw coke oven gas is often used industrially to refine hydrogen in order to better utilize resources. The raw gas is generated in the coal carbonization process, and the specific components of the raw gas are closely related to the carbonization temperature, the furnace type structure and the raw material coal type.

However, the existing raw gas cannot well filter the generated tail gas during hydrogen production, so that harmful gases in the tail gas can be discharged into the air along with the tail gas, and the air environment can be polluted.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to provide a hydrogen production tail gas filtering device and a hydrogen production system, so as to solve the problem that the tail gas generated during hydrogen production is discharged in the air to pollute the environment.

In order to achieve the above object, a first aspect of the present disclosure provides a hydrogen production tail gas filtering device, including: a processing box and a water changing box communicated with the processing box, wherein,

the treatment box is provided with a through hole for inserting a gas guide pipe for supplying tail gas, and the treatment box is provided with an exhaust part; the water changing tank is positioned on the upper part of the treatment tank and is communicated with the treatment tank through a pipeline so as to convey liquid to the inside of the treatment tank, and a feeding pipe is arranged on the water changing tank.

Optionally, the pipeline includes a first water pipe and a second water pipe, two ends of the first water pipe and the second water pipe are respectively connected with the water changing box and the treatment box, the first water pipe is used for conveying the liquid in the treatment box into the water changing box, the second water pipe is used for conveying the liquid in the water changing box into the treatment box, and the first water pipe and the second water pipe are respectively configured to make the liquid inside flow in a single direction.

Optionally, the first water pipe extends into the treatment tank towards one end of the treatment tank and extends to a position close to the bottom wall of the treatment tank, and a water pump for pumping the liquid 5 in the treatment tank into the water change tank is arranged on the first water pipe;

the second water pipe faces one end of the treatment box and extends into the treatment box, and a first one-way valve is arranged on the part, located in the treatment box, of the second water pipe.

Optionally, be equipped with the drain part on the water changing tank, the drain part include with the inside intercommunication of water changing tank sets up the drain pipe and set up valve on the drain pipe.

0 optionally, the drain is disposed on a side wall of the refill tank and proximate a bottom of the refill tank.

Optionally, the filtering apparatus further comprises a stirring assembly for stirring the liquids in the treatment tank and the water change tank, the stirring assembly comprises a driving part and a stirring part respectively connected with the driving part

Wherein the first stirring part is arranged in the water changing tank, and 5 the second stirring part is arranged in the treatment tank.

Optionally, the driving part is a dual-shaft motor, the first stirring part comprises a first driving shaft and a first stirring rod, one end of the first driving shaft is connected with the first stirring rod, and the other end of the first driving shaft penetrates through the water changing tank and is connected with one output shaft end of the dual-shaft motor; the second stirrer

The stirring part comprises a second driving shaft and a second stirring rod, one end of the second driving shaft is connected with the second stirring rod 0, and the other end of the second driving shaft penetrates through the treatment box and is connected with the other output shaft end of the double-shaft motor.

Optionally, a mounting box is arranged at the top of the treatment box, and the driving part is arranged in the mounting box.

Optionally, the exhaust part comprises an exhaust pipe provided in communication with the inside of the treatment tank and a second one-way valve provided 5 on the exhaust pipe.

In a second aspect of the present disclosure, a hydrogen production system is provided, which includes a support, a gas storage tank disposed on the support, and the hydrogen production tail gas filtering apparatus of the first aspect, wherein,

the support comprises a bottom plate which is horizontally placed and supporting legs which are arranged on the bottom surface of the bottom plate; the gas storage tank is communicated with the processing box through the gas guide pipe so as to convey tail gas in the gas storage tank to the inside of the processing box.

Through above-mentioned technical scheme, harmful gas that can produce when according to the hydrogen manufacturing of tail gas passes through the filling tube and adds the sufficient treating agent and the water mixture formation reaction solution in to the water change case, and reaction solution passes through the pipeline flow direction and handles the incasement, and tail gas gets into through the air duct and handles the incasement and react with reaction solution, discharges to the air through exhaust portion behind the tail gas filtration processing to the tail gas emission that produces when having solved the hydrogen causes the problem of pollution to the environment in the air.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of a hydrogen production tail gas filtering device provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic view of the structure of the change water tank and the treatment tank shown in FIG. 1;

fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Description of the reference numerals

1. A treatment box; 11. an air duct; 12. an exhaust section; 121. an exhaust pipe; 122. a second one-way valve; 2. changing the water tank; 21. a feed tube; 22. a water discharge section; 221. a drain pipe; 222. a valve; 3. a pipeline; 31. a first water pipe; 32. a second water pipe; 33. a water pump; 34. a first check valve; 4. a stirring assembly; 41. a drive section; 42. a first stirring section; 421. a first drive shaft; 422. a first stirring rod; 43. a second stirring section; 431. a second drive shaft; 432. a second stirring rod; 5. mounting a box; 6. a support; 61. a base plate; 62. a support leg; 7. an air storage tank.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, where not otherwise stated, the use of directional words such as "upper and lower" generally refer to the orientation of the hydrogen production off-gas filter apparatus provided by the present disclosure in normal use. "inner and outer" refer to the inner and outer of the respective component profiles. In addition, when the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated. The terms "first," "second," and the like, as used in this disclosure, are intended to distinguish one element from another, and not necessarily for sequential or importance.

The first aspect of the present disclosure provides a hydrogen production tail gas filtering device, as shown in fig. 1 to 2, including processing case 1 and water changing case 2 communicated with processing case 1, in this embodiment, processing case 1 and water changing case 2 are both set up to the same hollow rectangular structure of material, and can splendid attire liquid in processing case 1 and the water changing case 2. Offer the through-hole that is used for making the air duct 11 male of supply tail gas on the tank wall at the top of handling case 1, the one end of air duct 11 stretches into in handling case 1 and extends to the diapire that is close to handling case 1, makes the tail gas and the liquid fully reaction that get into in handling case 1. The side wall of the treatment box 1 is provided with an exhaust part 12, the exhaust part 12 is arranged close to the top of the treatment box 1, and the filtered tail gas rises to the top of the treatment box 1 and is discharged to the air through the exhaust part 12. The water changing tank 2 is positioned right above the treatment tank 1 and is communicated with the treatment tank 1 through a pipeline 3, the pipeline 3 is arranged between the water changing tank 2 and the treatment tank 1 so as to convey liquid to the inside of the treatment tank 1 and convey the liquid after reaction with tail gas back to the water changing tank 2. And the staff can add enough corresponding various treating agents in the water change box 2 according to the harmful gas (tail gas) produced during hydrogen production, then add water and mix with the water to form reaction solution, and then convey the mixed reaction solution into the treatment box 1 through the pipeline 3, so that the tail gas and the mixed reaction solution fully react for filtration treatment. Be equipped with filling tube 21 on the top of water changing box 2, the staff can be through filling tube 21 discontinuity to adding treatment agent and water in water changing box 2 to ensure reaction solution's concentration, hoisting device's reliability.

In the actual use process, firstly enough corresponding treating agent and water are added into the water changing tank 2 through the charging pipe 21 according to the harmful gas generated during hydrogen production to be mixed into reaction solution, and the mixed reaction solution is conveyed into the treating tank 1 through the pipeline 3. And then conveying the tail gas into the treatment box 1 through the gas guide pipe 11, reacting and filtering the tail gas and a reaction solution in the treatment box 1, and filtering and purifying the tail gas to remove harmful gases. The filtered off gas rises to the upper space of the treatment tank 1 not filled with the reaction solution and is discharged to the air through the exhaust unit 12.

Through above-mentioned technical scheme, harmful gas that can produce when according to the hydrogen manufacturing passes through filling tube 21 and adds the sufficient treating agent and the water mixture formation reaction solution to changing in the water tank 2, reaction solution passes through 3 flow directions of pipeline and handles in the case 1, tail gas passes through air duct 11 and gets into in handling case 1 and react with reaction solution, tail gas filtration is in the back rethread exhaust portion 12 discharges to the air, and the solution after the reaction can be discharged or retrieve through changing water tank 2, thereby the problem that the tail gas emission that produces when the hydrogen manufacturing causes the pollution to the environment in the air has been solved.

In some embodiments, as shown in fig. 1, the pipeline 3 may include a first water pipe 31 and a second water pipe 32, both ends of the first water pipe 31 and the second water pipe 32 are connected with the water change tank 2 and the treatment tank 1, respectively, the first water pipe 31 is used for conveying the liquid in the treatment tank 1 into the water change tank 2, the second water pipe 32 is used for conveying the liquid in the water change tank 2 into the treatment tank 1, and the first water pipe 31 and the second water pipe 32 are respectively configured to make the liquid inside flow in one direction. In the use, trade the reaction solution in the water tank 2 and carry to handling in the case 1 through second water pipe 32, handle the reaction solution in the case 1 and react with tail gas and filter, purify, produce certain impurity, carry the reaction solution that contains impurity in will handling case 1 through first water pipe 31 this moment to changing in the water tank 2, can avoid piling up appearing in the impurity that produces in handling case 1, reduce the effective usage space who handles case 1. Meanwhile, the concentration of the reaction solution in the treatment tank 1 can be ensured by circularly replacing the reaction solution in the water changing tank 2 and the reaction solution in the treatment tank 1, and the reliability of the filtering device can be further improved.

In some embodiments, as shown in fig. 1, one end of the first water pipe 31 facing the treatment tank 1 extends into the treatment tank 1 and extends to be close to the bottom wall of the treatment tank 1, and a water pump 33 for pumping the liquid in the treatment tank 1 to the water changing tank 2 is arranged on the first water pipe 31. The reaction solution in the treatment box 1 reacts with the tail gas to generate impurities, the impurities are condensed and then have certain weight to sink to the bottom of the treatment box 1, the first water pipe 31 extends to the bottom wall close to the treatment box 1, and the reaction solution is mainly arranged for emptying most of the reaction solution in the treatment box 1. And water pump 33's setting can promote the conveying capacity of first water pipe 31, can also pump the impurity that is located the processing case 1 bottom to trade the water tank 2 in, avoids impurity to pile up the influence in the bottom of handling case 1 and uses. One end of the second water pipe 32, which faces the treatment tank 1, extends into the treatment tank 1, the end of the second water pipe 32 extending into the treatment tank 1 is positioned at the top of the treatment tank 1, and the part of the second water pipe 32 positioned in the treatment tank 1 is provided with a first check valve 34. The first check valve 34 is set so that the reaction solution in the water changing tank 2 can only flow toward the inside of the treatment tank 1, and thus the reverse flow of the reaction solution or the reverse flow of the tail gas through the second water pipe 32 can be avoided when the device is used, and the delivery flow rate of the reaction solution is reduced, thereby affecting the use of the device. That is, in this embodiment, the unidirectional flow of the liquid in the first water pipe 31 depends on the water pump 33, and the unidirectional flow of the liquid in the second water pipe 32 depends on the first check valve 34. Meanwhile, the first one-way valve 34 is arranged at the top of the treatment box 1 and does not extend into the reaction solution, so that the arrangement can prevent the first one-way valve 34 from being soaked in the reaction solution in the treatment box 1, and impurities doped in the first one-way valve 34 block the first one-way valve 34, so that the first one-way valve 34 is disabled, and the use of the filtering device is influenced.

In some embodiments, as shown in FIG. 1, the drain 22 is provided on the exchange tank 2, and the drain 22 includes a drain pipe 221 provided to communicate with the inside of the exchange tank 2 and a valve 222 provided on the drain pipe 221. In use, the valve 222 is opened, the impurity-doped reaction solution displaced from the inside of the treatment tank 1 to the inside of the water exchange tank 2 is discharged through the drain pipe 221, and then the valve 222 is closed, and the treating agent and water are fed through the feed pipe 21 to form the reaction solution. By means of the arrangement, excessive impurities in the reaction solution can be avoided, and the concentration of the reaction solution and the effective use space of the water change box 2 and the treatment box 1 are reduced. In this embodiment, the valve 222 may be manual, and in other embodiments, the valve 222 may also be electrically controlled, and may be set according to actual requirements, which is not limited herein.

In order to more completely discharge the impurity-doped reaction solution in the change water tank 2, as shown in fig. 1, in some embodiments, a drain pipe 221 is provided on a sidewall of the change water tank 2 and is disposed near the bottom of the change water tank 2. By the arrangement, the reaction solution in the water changing tank 2 is easier to discharge, impurities are cleaned more cleanly, the content of the impurities in the reaction solution is reduced, and the effective use space in the water changing tank 2 and the treatment tank 1, the concentration of the reaction solution and the reliability of the device are ensured.

In some embodiments, referring to fig. 1 and 3, the filtering apparatus may further include an agitation assembly 4 for agitating the liquid in the process tank 1 and the water change tank 2, and the agitation assembly 4 may include a driving part 41 and first and second agitation parts 42 and 43 connected to the driving part 41, respectively, wherein the first agitation part 42 is disposed in the water change tank 2 and the second agitation part 43 is disposed in the process tank 1. In this embodiment, the driving part 41 is provided between the water change tank 2 and the treatment tank 1, the driving part 41 is connected to the first stirring part 42, and the first stirring part 42 is driven to rotate in the water change tank 2, so that the treatment agent and the water added to the water change tank 2 can be sufficiently mixed. The driving part 41 is connected with the second stirring part 43, and drives the second stirring part 43 to rotate in the treatment box 1, so that the tail gas introduced into the treatment box 1 can be fully reacted with the reaction solution, and the reliability of the filtering device and the efficiency of the filtering work are improved.

In some embodiments, referring to fig. 1 and 3, the driving part 41 is a dual-shaft motor, and the first stirring part 42 may include a first driving shaft 421 and a first stirring rod 422, one end of the first driving shaft 421 is connected to the first stirring rod 422, and the other end of the first driving shaft 421 penetrates the water change tank 2 and is connected to one output shaft end of the dual-shaft motor. The second stirring section 43 includes a second driving shaft 431 and a second stirring rod 432, one end of the second driving shaft 431 is connected to the second stirring rod 432, and the other end of the second driving shaft 431 penetrates the treatment tank 1 and is connected to the other output shaft end of the two-shaft motor. In this embodiment, first puddler 422 and second puddler 432 all set up many, and many first puddlers 422 set up along the extending direction interval of first drive axle 421, and many first puddlers 422 can make that treating agent and water mix more abundant, and the mixing speed is faster, and work efficiency is higher. Many second puddlers 432 set up along the extending direction interval of second drive shaft 431, and many second puddlers 432 can make more thoroughly that tail gas and reaction solution fully reacted, promote the filterable effect of tail gas to and the reliability of device. During the use, the double-shaft motor starts, and the reaction solution in the first stirring portion 42 stirring trades water tank 2 makes the treating agent intensive mixing in water, and the reaction solution in the second stirring portion 43 stirring processing case 1 makes tail gas can the intensive reaction handle to can make tail gas carry out fine filtration, further reduce harmful gas and discharge the polluted environment. In other embodiments, the driving portion 41 may also be provided with two motors, each motor controls one stirring portion, and the driving portion may be provided according to actual requirements, which is not limited herein.

In order to protect the dual shaft motor, referring to fig. 1 and 3, in some embodiments, a mounting box 5 is provided at the top of the process cartridge 1, and a driving part 41 is provided in the mounting box 5. Set up like this, can protect the spare part of biax motor, avoided receiving external factor to influence, the biax motor damages, influences the use of device to and the security of during operation, reduce cost of maintenance simultaneously, improve economic benefits.

In some embodiments, as shown in fig. 1, the exhaust part 12 includes an exhaust pipe 121 provided in communication with the inside of the process tank 1, and a second check valve 122 provided on the exhaust pipe 121. In the present embodiment, the second check valve 122 is provided so that the exhaust gas can flow only from the inside of the treatment tank 1 toward the outside. During the use, tail gas through filtration, purification discharges to the air through blast pipe 121 in, and outside air or other then can not get into through blast pipe 121 and handle the case 1 in and then influence the effect of filtration, the purification of tail gas. And the exhaust part 12 is arranged on the side wall of the treatment box 1 and near the top of the treatment box 1, so that enough effective working space can be reserved in the treatment box 1, enough reaction solution can be stored to react with the tail gas, and the working efficiency and effect of tail gas filtration are further improved.

A second aspect of the present disclosure provides a hydrogen production system, as shown in fig. 1, including a support 6, a gas storage tank 7 disposed on the support 6, and the hydrogen production tail gas filtering device according to any of the above embodiments, and specific structures and effects of the hydrogen production tail gas filtering device are not described herein again.

Wherein, gas holder 7 is used for storing the tail gas that the burning produced in the coke oven to through air duct 11 and handling case 1 intercommunication, with the inside of carrying to handling case 1 with the tail gas in the gas holder 7. The stand 6 may include a bottom plate 61 placed horizontally and legs 62 provided on a bottom surface of the bottom plate 61, and in the present embodiment, the bottom plate 61 is provided in a rectangular plate shape, and the legs 62 are provided on opposite sides of the bottom plate 61 in an extending direction of the bottom plate 61. Set up like this, support 6 erects gas holder 7 and filter equipment, can be effectual to weight dispersion to bottom plate 61 and landing leg 62 on, improve the holistic stability of device, ensure the bottom surface operational environment's of device safety, effectively avoid the emergence of accident.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A hydrogen production tail gas filter device, comprising: a processing tank and a water changing tank communicated with the processing tank, wherein,

the treatment box is provided with a through hole for inserting a gas guide pipe for supplying tail gas, and the treatment box is provided with an exhaust part; the water changing tank is positioned on the upper part of the processing tank and communicated with the processing tank through a pipeline so as to convey liquid to the inside of the processing tank, and a feeding pipe is arranged on the water changing tank.

2. The hydrogen production tail gas filtering device according to claim 1, wherein the pipeline comprises a first water pipe and a second water pipe, two ends of the first water pipe and the second water pipe are respectively connected with the water changing box and the treatment box, the first water pipe is used for conveying liquid in the treatment box into the water changing box, the second water pipe is used for conveying liquid in the water changing box into the treatment box, and the first water pipe and the second water pipe are respectively configured to enable the liquid in the inner part to flow in a single direction.

3. The hydrogen production tail gas filtering device according to claim 2, characterized in that one end of the first water pipe, which faces the treatment tank, extends into the treatment tank and extends to a position close to the bottom wall of the treatment tank, and a water pump for pumping liquid in the treatment tank into the water change tank is arranged on the first water pipe;

the second water pipe faces one end of the treatment box and extends into the treatment box, and a first one-way valve is arranged on the part, located in the treatment box, of the second water pipe.

4. The hydrogen production tail gas filtering device according to claim 1, wherein a water discharging part is arranged on the water changing tank, and the water discharging part comprises a water discharging pipe communicated with the inside of the water changing tank and a valve arranged on the water discharging pipe.

5. The hydrogen-producing tail gas filtering device according to claim 4, wherein the water discharge pipe is arranged on the side wall of the water change tank and is close to the bottom of the water change tank.

6. The hydrogen production tail gas filtering device according to claim 1, further comprising a stirring assembly for stirring the liquid in the treatment tank and the water change tank, wherein the stirring assembly comprises a driving part and a first stirring part and a second stirring part which are respectively connected with the driving part, wherein the first stirring part is arranged in the water change tank, and the second stirring part is arranged in the treatment tank.

7. The hydrogen production tail gas filtering device according to claim 6, wherein the driving part is a double-shaft motor, the first stirring part comprises a first driving shaft and a first stirring rod, one end of the first driving shaft is connected with the first stirring rod, and the other end of the first driving shaft penetrates through the water changing tank and is connected with one output shaft end of the double-shaft motor; the second stirring part comprises a second driving shaft and a second stirring rod, one end of the second driving shaft is connected with the second stirring rod, and the other end of the second driving shaft penetrates through the treatment box and is connected with the other output shaft end of the double-shaft motor.

8. The hydrogen production tail gas filtering device according to claim 6, wherein a mounting box is arranged at the top of the treatment box, and the driving part is arranged in the mounting box.

9. The hydrogen production tail gas filtering device according to claim 1, wherein the exhaust part comprises an exhaust pipe communicated with the inside of the treatment tank and a second one-way valve arranged on the exhaust pipe.

10. A hydrogen production system, which is characterized by comprising a support, a gas storage tank arranged on the support, and a hydrogen production tail gas filtering device as claimed in any one of claims 1 to 9,

the support comprises a bottom plate which is horizontally placed and supporting legs which are arranged on the bottom surface of the bottom plate; the gas storage tank is communicated with the processing box through the gas guide pipe so as to convey tail gas in the gas storage tank to the inside of the processing box.

Images