CN220472382U

CN220472382U - Energy recovery device in anhydrous hydrogen fluoride production process

Info

Publication number: CN220472382U
Application number: CN202322061847.8U
Authority: CN
Inventors: 侯孟朋; 陈玉尧; 王保才; 马玉成
Original assignee: Shandong Luwei Engineering Design Co ltd
Current assignee: Shandong Luwei Engineering Design Co ltd
Priority date: 2023-12-29
Filing date: 2023-12-29
Publication date: 2024-02-09
Anticipated expiration: 2033-12-29

Abstract

The utility model discloses an energy recovery device in the anhydrous hydrogen fluoride production process, which comprises a shell, a gas pipeline and an external treatment box, wherein the gas pipeline is arranged in the shell, the treatment box is fixed on the side surface of the shell and is communicated with the gas pipeline, the shell and the external treatment box are provided with recovery structures, and the recovery structures comprise: baffle, chamber plate, circulation portion and filtration portion. The circulation layer plates which are used for dispersing and enlarging the flow area of the waste gas are arranged in the utility model, and the water to be subjected to heat exchange is dispersed and falls down at the top, so that the heating area can be increased, the water is heated rapidly, the circulation layer plates are provided with a plurality of through holes, and the sealing inner pipes are arranged in the circulation layer plates, so that the water can flow downwards, the heating effect is effectively improved, the circulation and repeated heating can be performed when the temperature is not up to the standard, and the temperature reduction and the filtration treatment can be performed on the discharged waste gas, so that the pollution to the external environment can be avoided.

Description

Energy recovery device in anhydrous hydrogen fluoride production process

Technical Field

The utility model relates to the technical field of anhydrous hydrogen fluoride waste gas recycling, in particular to an energy recovery device in the anhydrous hydrogen fluoride production process.

Background

Industrial anhydrous hydrogen fluoride is a chemical product with wide application, the appearance is hydrofluoric acid with more than 99% of colorless fuming liquid, and the hydrofluoric acid is easy to gasify under reduced pressure or high temperature. Is mainly used for preparing fluorine salt, fluorohaloalkane, fluororefrigerant, corrosive glass, impregnated wood, electrolytic element fluorine and the like.

When anhydrous hydrogen fluoride is produced, a plurality of waste gases with heat are generated and are generally directly discharged into the atmosphere, so that not only is the heat lost, but also the environment is polluted, the waste gases are recyclable resources, and the waste gases are treated to reach the dischargeable standard to ensure that the environment is not polluted.

Disclosure of Invention

In order to achieve the above purpose, the utility model adopts the technical scheme that the utility model provides an energy recovery device in the anhydrous hydrogen fluoride production process, which comprises a shell, a gas pipeline and an outer treatment box, wherein the gas pipeline is arranged in the shell, the treatment box is fixed on the side surface of the shell and is communicated with the gas pipeline, and the shell and the outer treatment box are provided with recovery structures;

the recovery structure includes: baffle, cavity plate, circulation part and filtering part;

the baffle sets up the shell inner wall, the cavity board is connected between the baffle, circulation portion sets up between the cavity board, circulation portion sets up in the shell, filtering part sets up in the processing box.

Still further, the flow-through portion includes: a flow-through plate, a through-hole, and a sealed inner tube;

the circulation layer plates are connected between the cavity plates, the through holes are formed in the surfaces of the circulation layer plates, and the sealing inner tubes are arranged in the circulation layer plates and located at the through holes.

Still further, the circulating section includes: the device comprises a water tank, a water pump, a water pipe, a main pipeline, a dispersing cover, a connecting pipeline, a one-way valve, a discharge pipeline and a control valve;

the water tank is arranged at the bottom in the shell, the water pump is fixed on the side surface of the water tank, the water pipe is connected with the output end of the water pump, one end of the water pipe penetrates through the surface of the shell and is located outside, the main pipe is fixed at the inner upper end of the shell, the dispersing cover is connected with the lower end of the main pipe, the connecting pipe is connected with the upper end of the main pipe through the one-way valve, the discharging pipe is connected with the side surface of the water tank, one end of the discharging pipe penetrates through the surface of the shell, and the control valve is arranged on the discharging pipe.

Still further, the filtering part includes: the device comprises a mesh plate, a heat exchanger, a limiting plate, a filter, a mounting frame and a screw locking frame;

the mesh plate is arranged in the outer treatment box, the heat exchanger is arranged on the outer treatment box, the output end of the heat exchanger is inserted into the mesh plate, the limiting plate is arranged in the outer treatment box, and the filter is fixedly connected in the outer treatment box through the screw locking frame.

Preferably, the cavity plates are sequentially communicated from top to bottom.

Preferably, the cross section of the circulation layer plate is in a rectangular structure.

Compared with the prior art, the utility model has the advantages and positive effects that the circulation layer plates for dispersing and enlarging the exhaust gas circulation area are arranged in the circulation layer plates, the water needing heat exchange disperses and falls on the top, the heating area can be increased, the water is heated rapidly, the circulation layer plates are provided with a plurality of through holes, and the sealing inner pipes are arranged in the circulation layer plates, so that the circulation layer plates can be used for downwards flowing water, the heating effect is effectively improved, the circulation and repeated heating can be realized when the temperature does not reach the standard, the temperature reduction and the filtering treatment can be carried out on the exhaust gas, and the pollution to the external environment is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural diagram of an energy recovery device in the anhydrous hydrogen fluoride production process according to the present embodiment;

FIG. 2 is an enlarged view of a portion of a screw lock bracket of an energy recovery device in the production of anhydrous hydrogen fluoride according to the present embodiment;

FIG. 3 is an enlarged view of a portion of a flow-through deck of an energy recovery device in an anhydrous hydrogen fluoride production process according to the present embodiment;

the figure shows: 1. a housing; 2. a gas conduit; 3. an external treatment tank; 4. a baffle; 5. a cavity plate; 6. a flow-through laminate; 7. a through hole; 8. sealing the inner tube; 9. a water tank; 10. a water pump; 11. a water pipe; 12. a main pipe; 13. a dispersion cover; 14. a connecting pipe; 15. a one-way valve; 16. a discharge pipe; 17. a control valve; 18. a mesh plate; 19. a heat exchanger; 20. a limiting plate; 21. a filter; 22. a mounting frame; 23. screw locking frame.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

As can be seen from fig. 1-3 of the specification, the energy recovery device in the anhydrous hydrogen fluoride production process according to the present embodiment includes a housing 1, a gas pipe 2 and an outer treatment tank 3, wherein the gas pipe 2 is disposed in the housing 1, the treatment tank is fixed on a side surface of the housing 1 and is communicated with the gas pipe 2, and the housing 1 and the outer treatment tank 3 are provided with recovery structures;

the recovery structure includes: baffle 4, chamber plate 5, flow-through section, circulation section, and filtration section;

the baffle plates 4 are arranged on the inner wall of the shell 1, the cavity plates 5 are connected between the baffle plates 4, the circulation part is arranged between the cavity plates 5, the circulation part is arranged in the shell 1, and the filtering part is arranged in the treatment box.

The flow-through section includes: a flow-through plate 6, a through-hole 7, and a sealed inner tube 8;

the circulation layer plates 6 are connected between the cavity plates 5, the through holes 7 are formed in the surfaces of the circulation layer plates 6, and the sealing inner tubes 8 are arranged in the circulation layer plates 6 and located at the through holes 7.

The circulation part includes: the water tank 9, the water pump 10, the water pipe 11, the main pipe 12, the dispersion cover 13, the connecting pipe 14, the one-way valve 15, the discharge pipe 16 and the control valve 17;

the water tank 9 is arranged at the inner bottom of the shell 1, the water pump 10 is fixed on the side surface of the water tank 9, the water pipe 11 is connected to the output end of the water pump 10, one end of the water pipe penetrates through the surface of the shell 1 and is located outside, the main pipe 12 is fixed at the inner upper end of the shell 1, the dispersing cover 13 is connected to the lower end of the main pipe 12, the connecting pipe 14 is connected to the upper end of the main pipe 12 through the one-way valve 15, the discharging pipe 16 is connected to the side surface of the water tank 9, one end of the water pipe penetrates through the surface of the shell 1, and the control valve 17 is arranged on the discharging pipe 16.

The filtering part includes: the device comprises a mesh plate 18, a heat exchanger 19, a limiting plate 20, a filter 21, a mounting frame 22 and a screw locking frame 23;

the mesh plate 18 is arranged in the outer treatment box 3, the heat exchanger 19 is arranged on the outer treatment box 3, the output end of the heat exchanger is inserted into the mesh plate 18, the limiting plate 20 is arranged in the outer treatment box 3, and the filter 21 is fixedly connected in the outer treatment box 3 through the screw locking frame 23.

From the above, it can be seen that: the cavity plates 5 are sequentially communicated from top to bottom, so that gas can continuously flow, and the flow time is prolonged by the plurality of cavity plates 5.

From the above, it can be seen that: the cross section of the circulation layer plate 6 is of a rectangular structure, the whole area is increased, the contact time of water and the circulation layer plate 6 is prolonged, and the circulation layer plate 6 is more dispersed and more uniform.

It should be pointed out that, in the specific implementation process, the water to be heated is injected at the connecting pipeline 14, and is injected into the dispersing cover 13 through the one-way valve 15, the waste gas enters the cavity plate 5 and the circulation layer plate 6 through the gas pipeline, flows through the circulation layer plate 6 and the cavity plate 5, the water falling down from the dispersing cover 13 flows on the circulation layer plate 6 and continuously flows downwards in the sealed inner pipe 8 through the through hole 7, and is rapidly heated, the heated water enters the water tank 9, the water tank 9 can be provided with the temperature sensor, if the temperature is insufficient, the water can flow back into the main pipeline 12 through the water pump 10 and the water pipe 11 for heating again, the discharged gas enters the outer treatment tank 3, is rapidly cooled through the mesh plate 18 and the heat exchanger 19, is filtered through the filter 21 and is discharged, the filter 21 can be periodically disassembled and replaced, and the screw locking frame 23 is opened in an upward swinging manner.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The energy recovery device in the anhydrous hydrogen fluoride production process comprises a shell (1), a gas pipeline (2) and an external treatment box (3), wherein the gas pipeline (2) is arranged in the shell (1), and the treatment box is fixed on the side surface of the shell (1) and is communicated with the gas pipeline (2), and is characterized in that the shell (1) and the external treatment box (3) are provided with recovery structures;

the recovery structure includes: a baffle (4), a cavity plate (5), a circulation part and a filtering part;

baffle (4) set up shell (1) inner wall, cavity board (5) are connected between baffle (4), circulation portion sets up between cavity board (5), circulation portion sets up in shell (1), filtering part sets up in the processing case.

2. The apparatus for recovering energy in an anhydrous hydrogen fluoride production process according to claim 1, wherein the flow-through section comprises: a flow-through plate (6), a through hole (7) and a sealing inner tube (8);

the circulating layer plates (6) are connected between the cavity plates (5), the through holes (7) are formed in the surfaces of the circulating layer plates (6), and the sealing inner tubes (8) are arranged in the circulating layer plates (6) and located at the through holes (7).

3. The apparatus for recovering energy in an anhydrous hydrogen fluoride production process according to claim 1, wherein the circulating section comprises: the device comprises a water tank (9), a water pump (10), a water pipe (11), a main pipeline (12), a dispersing cover (13), a connecting pipeline (14), a one-way valve (15), a discharge pipeline (16) and a control valve (17);

the water tank (9) is arranged at the inner bottom of the shell (1), the water pump (10) is fixed on the side surface of the water tank (9), the water pipe (11) is connected with the output end of the water pump (10) and one end of the water pipe penetrates through the surface of the shell (1) to be located outside, the main pipe (12) is fixed at the inner upper end of the shell (1), the dispersing cover (13) is connected with the lower end of the main pipe (12), the connecting pipe (14) is connected with the upper end of the main pipe (12) through the one-way valve (15), the discharging pipe (16) is connected with the side surface of the water tank (9) and one end of the discharging pipe penetrates through the surface of the shell (1), and the control valve (17) is arranged on the discharging pipe (16).

4. The apparatus for recovering energy in an anhydrous hydrogen fluoride production process according to claim 1, wherein the filtering section comprises: the device comprises a mesh plate (18), a heat exchanger (19), a limiting plate (20), a filter (21), a mounting frame (22) and a screw locking frame (23);

the mesh plate (18) is arranged in the outer treatment box (3), the heat exchanger (19) is arranged on the outer treatment box (3) and the output end of the heat exchanger is inserted into the mesh plate (18), the limiting plate (20) is arranged in the outer treatment box (3), and the filter (21) is fixedly connected in the outer treatment box (3) through the screw locking frame (23).

5. The energy recovery device in the production process of anhydrous hydrogen fluoride according to claim 1, wherein the cavity plates (5) are sequentially communicated from top to bottom.

6. An energy recovery device in an anhydrous hydrogen fluoride production process according to claim 2, wherein the flow-through deck (6) has a rectangular cross-section.