CN222586055U - Hydrogen chloride tail gas recovery device - Google Patents
Hydrogen chloride tail gas recovery device Download PDFInfo
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- CN222586055U CN222586055U CN202421237537.5U CN202421237537U CN222586055U CN 222586055 U CN222586055 U CN 222586055U CN 202421237537 U CN202421237537 U CN 202421237537U CN 222586055 U CN222586055 U CN 222586055U
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- tail gas
- hydrogen chloride
- treatment box
- gas treatment
- gas
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Abstract
The utility model relates to the technical field of tail gas recovery, in particular to a hydrogen chloride tail gas recovery device, which comprises a tail gas treatment box, a gas pipe and a filtering component, wherein the filtering component is arranged on the gas pipe and used for cleaning and filtering hydrogen chloride tail gas, the gas pipe is arranged on the tail gas treatment box, a liquid discharge pipe is arranged at the bottom of the tail gas treatment box, the filtering component comprises an installation sleeve which is communicated with the gas pipe, an adjusting valve is arranged at a gas inlet pipe orifice of the installation sleeve, a scale plate and a pointing piece are arranged on the adjusting valve, an airflow cylinder is detachably arranged in the installation sleeve and between the adjusting valve and the gas pipe, and a filtering sleeve is arranged on the inner wall of the airflow cylinder. The impurity in the clean filtration hydrogen chloride tail gas of filter sleeve through the air current section of thick bamboo inner wall setting for do not contain impurity in the hydrogen chloride gas that lets in the tail gas treatment incasement, thereby realized carrying out resource recycling to the hydrogen chloride gas in the tail gas, and can not cause the pollution to the hydrochloric acid solution after retrieving.
Description
Technical Field
The utility model relates to the technical field of tail gas recovery, in particular to a hydrogen chloride tail gas recovery device.
Background
Hydrogen chloride is colorless nonflammable gas, has extremely pungent smell and specific gravity greater than that of air, and generates white fog when meeting moist air, so that the hydrogen chloride is extremely easy to dissolve in water to generate hydrochloric acid.
The synthesis workshop and the drying workshop of benzotrifluoride can generate a large amount of tail gas containing hydrogen chloride gas, so that the discharged tail gas is prevented from polluting the environment, the waste of resources is prevented, the tail gas is required to be treated and then is discharged into the atmosphere, the mode commonly adopted for recycling the hydrogen chloride tail gas is a water absorption method, but the existing hydrogen chloride tail gas recycling device basically directly sprays the hydrogen chloride tail gas, no filtering process is adopted, impurities contained in the hydrogen chloride tail gas are easily caused to enter the tail gas treatment box, the surface of the tail gas treatment box is polluted and damaged, the service life of the hydrogen chloride tail gas recycling device is prolonged, meanwhile, the hydrochloric acid formed after recycling the hydrogen chloride gas is polluted, and the quality of the hydrochloric acid is reduced.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a hydrogen chloride tail gas recovery device aiming at the defects in the prior art.
The technical scheme includes that the hydrogen chloride tail gas recovery device comprises a tail gas treatment box, a gas pipe and a filtering component, wherein the filtering component is arranged on the gas pipe and used for cleaning and filtering hydrogen chloride tail gas;
the filter component comprises an installation sleeve communicated with the gas pipe, an adjusting valve is arranged at the inlet pipe orifice of the installation sleeve, a scale plate and a pointing piece are arranged on the adjusting valve, an air flow barrel is detachably arranged in the installation sleeve and between the adjusting valve and the gas pipe, and the inner wall of the air flow barrel is provided with the filter sleeve.
Preferably, the outlet pipe opening of the gas pipe is vertically arranged in the tail gas treatment box, adsorption liquid for adsorbing hydrogen chloride gas is stored in the tail gas treatment box, and the outlet pipe opening of the gas pipe is positioned below the liquid level of the adsorption liquid.
Preferably, a pressure release piece is arranged at the top of the tail gas treatment box and used for balancing the pressure in the tail gas treatment box.
Preferably, a liquid storage tank is arranged at the bottom of the tail gas treatment tank, the liquid storage tank is communicated with the pipe orifice of the liquid discharge pipe, and a control valve is arranged between the liquid storage tank and the liquid discharge pipe.
Preferably, a column base is arranged at the bottom of the tail gas treatment box.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the hydrogen chloride tail gas can flow into the gas transmission pipe from the inside of the installation sleeve through the gas flow cylinder, impurities in the hydrogen chloride tail gas are cleaned and filtered under the action of the filtering sleeve arranged on the inner wall of the gas flow cylinder, so that the hydrogen chloride gas adsorbed by the adsorption liquid in the tail gas treatment box does not contain impurities, the resource recycling of the hydrogen chloride gas in the tail gas is realized, and the recycled hydrochloric acid solution is not polluted.
2. The utility model controls the on-off of the hydrogen chloride tail gas in the mounting sleeve through the regulating valve, and can clearly and intuitively display the flow of the hydrogen chloride tail gas in the mounting sleeve through the cooperation of the scale plate and the pointing piece, and has simple structure and good practicability.
Drawings
FIG. 1 is a cross-sectional view of an exhaust gas treatment tank of a hydrogen chloride exhaust gas recovery apparatus of the present utility model;
FIG. 2 is a schematic perspective view of a filtering assembly of a hydrogen chloride tail gas recovery device according to the present utility model;
Fig. 3 is an exploded view of an airflow tube and a filter sleeve of a hydrogen chloride tail gas recovery device according to the present utility model.
Illustration of:
1. The device comprises a tail gas treatment box, 101, a column base, 2, a gas pipe, 3, a filtering component, 301, a mounting sleeve, 302, an adjusting valve, 3021, a scale plate, 3022, a pointing element, 303, an air flow cylinder, 304, a filtering sleeve, 4, a liquid discharge pipe, 5, a pressure relief element, 6, a liquid storage tank and 7, and a control valve.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "configured to," "connected," and the like are to be construed broadly as, for example, "connected" may be fixedly connected, may be detachably connected, or integrally connected, may be mechanically connected or electrically connected, may be directly connected or indirectly connected through an intermediate medium, and may be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, an embodiment of the utility model provides a hydrogen chloride tail gas recovery device, which comprises a tail gas treatment box 1, a gas pipe 2 arranged on the tail gas treatment box, and a filter assembly 3 arranged on the gas pipe 2 and used for cleaning and filtering hydrogen chloride tail gas, wherein the hydrogen chloride tail gas is introduced into the filter assembly 3, so that impurities in the hydrogen chloride tail gas can be cleaned and filtered.
In some embodiments, referring to fig. 1, the outlet pipe opening of the gas pipe 2 is vertically disposed in the tail gas treatment tank 1, an adsorption liquid for adsorbing the hydrogen chloride gas is stored in the tail gas treatment tank 1, and the outlet pipe opening of the gas pipe 2 is located below the liquid level of the adsorption liquid, so that the hydrogen chloride tail gas can be fully absorbed by the adsorption liquid.
In some embodiments, referring to fig. 1, a pressure release part 5 is arranged at the top of the tail gas treatment tank 1, and the pressure in the tail gas treatment tank 1 is balanced through the pressure release part 5, so that negative pressure in the tail gas treatment tank 1 is avoided, and the adsorption liquid in the tail gas treatment tank 1 can stably adsorb hydrogen chloride in the hydrogen chloride tail gas.
In some embodiments, a pressure sensor is arranged in the tail gas treatment box 1, and the pressure sensor and the pressure release piece 5 are electrically connected with an externally arranged controller;
The pressure sensor senses the pressure in the tail gas treatment box 1 and transmits a pressure signal to the controller, so that the controller can control the opening and closing of the pressure release valve according to the pressure signal, the pressure in the tail gas treatment box 1 is in a normal state, and the internal pressure of the tail gas treatment box is prevented from being higher than the pressure in the gas transmission pipe 2, so that the absorption of the absorption liquid to the hydrogen chloride tail gas is prevented.
In some embodiments, the pressure relief piece 5 is a pressure relief valve.
In some embodiments, referring to fig. 1, a column base 101 is arranged at the bottom of the tail gas treatment box 1, so that the tail gas treatment stability can be ensured, and the absorption treatment of the hydrogen chloride gas in the tail gas by the absorption liquid is facilitated.
In some embodiments, referring to fig. 1, a liquid discharge pipe 4 is arranged at the bottom of the tail gas treatment tank 1, a liquid storage tank 6 is communicated with a pipe orifice of the liquid discharge pipe 4, and a control valve 7 is arranged between the liquid storage tank 6 and the liquid discharge pipe 4;
the on-off of the liquid discharge pipe 4 is controlled through the control valve 7, so that hydrochloric acid formed by adsorbing hydrogen chloride gas through adsorption liquid in the tail gas treatment box 1 can be discharged into the liquid storage tank 6 for storage, and resource recycling of the hydrogen chloride gas in the tail gas is realized.
In some embodiments, a water injection pipe is disposed on the exhaust gas treatment tank 1, so that the exhaust gas treatment tank 1 can be subjected to liquid injection treatment.
In some embodiments, the control valve 7 is a one-way solenoid valve, and the control valve 7 is electrically connected to an externally provided controller.
In some embodiments, referring to fig. 2 and 3, the filter assembly 3 includes a mounting sleeve 301 that is disposed in communication with the air pipe 2, an adjusting valve 302 is disposed at an air inlet pipe orifice of the mounting sleeve 301, a scale plate 3021 and a pointing member 3022 are disposed on the adjusting valve 302, an air flow tube 303 is detachably mounted in the mounting sleeve 301 and between the adjusting valve 302 and the air pipe 2, and a filter sleeve 304 is disposed on an inner wall of the air flow tube 303.
The on-off of the hydrogen chloride tail gas in the installation sleeve 301 is controlled through the adjusting valve 302, the flow of the hydrogen chloride tail gas in the installation sleeve 301 can be clearly and intuitively displayed through the cooperation of the scale plate 3021 and the pointing piece 3022, the structure is simple, the practicability is good, the hydrogen chloride tail gas can flow into the gas transmission pipe 2 from the installation sleeve 301 through the gas flow cylinder 303, impurities in the hydrogen chloride tail gas are cleaned and filtered under the action of the filtering sleeve 304 arranged on the inner wall of the gas flow cylinder 303, the hydrogen chloride gas adsorbed by the adsorption liquid in the introduced tail gas treatment box 1 does not contain impurities, and the quality of hydrochloric acid solution produced by recycling the hydrogen chloride gas is guaranteed.
In some embodiments, referring to FIG. 3, an air flow cartridge 303 is removably mounted within the mounting sleeve 301 between the regulator valve 302 and the air delivery conduit 2, enabling periodic cleaning of impurities filtered within the filter sleeve 304 while the filter sleeve 304 is replaced.
In some embodiments, the filter sleeve 304 is a gas filtration membrane that is capable of filtering solid impurities in the exhaust gas.
In some embodiments, the inlet pipe mouth of the mounting sleeve 301 is provided with a flange through which it can be in sealed communication with a pipeline carrying hydrogen chloride tail gas.
The utility model works as follows:
The pipeline for conveying the hydrogen chloride tail gas is fixedly connected with the flange plate at the inlet pipe opening of the mounting sleeve 301, the hydrogen chloride tail gas is led into the mounting sleeve 301, the regulating valve 302 is opened, the hydrogen chloride tail gas carrying impurities flows through the airflow barrel 303, impurities in the tail gas are cleaned and filtered through the filtering sleeve 304, no impurities are contained in the hydrogen chloride tail gas led into the tail gas treatment box 1, when the hydrogen chloride tail gas is led into the tail gas treatment box 1, the hydrogen chloride gas contained in the tail gas is recycled under the action of an adsorption liquid, the pressure sensor and the pressure release valve are used for guaranteeing the tail gas treatment box 1, the pressure balance is realized, negative pressure is prevented from occurring in the gas pipe 2, absorption of the adsorption liquid to the hydrogen chloride gas is influenced, after the adsorption liquid is saturated, the regulating valve 302 is controlled to cut off the supply of the hydrogen chloride tail gas, meanwhile, the control valve 7 is opened, hydrochloric acid solution formed in the tail gas treatment box 1 is injected into the liquid storage tank 6 through the liquid discharge pipe 4, and a part of the hydrochloric acid solution in the tail gas treatment box 1 is reserved, and simultaneously, the new adsorption liquid is injected into the tail gas treatment box 1, the hydrogen chloride solution is not polluted by the hydrogen chloride solution is reserved, and the recycling of the tail gas is realized after the hydrogen chloride is realized, and the recycling of the hydrogen chloride solution is realized.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421237537.5U CN222586055U (en) | 2024-06-01 | 2024-06-01 | Hydrogen chloride tail gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421237537.5U CN222586055U (en) | 2024-06-01 | 2024-06-01 | Hydrogen chloride tail gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222586055U true CN222586055U (en) | 2025-03-11 |
Family
ID=94857503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421237537.5U Active CN222586055U (en) | 2024-06-01 | 2024-06-01 | Hydrogen chloride tail gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222586055U (en) |
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2024
- 2024-06-01 CN CN202421237537.5U patent/CN222586055U/en active Active
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