CN216336600U - Chlorine gasification purification device - Google Patents
Chlorine gasification purification device Download PDFInfo
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- CN216336600U CN216336600U CN202123193822.0U CN202123193822U CN216336600U CN 216336600 U CN216336600 U CN 216336600U CN 202123193822 U CN202123193822 U CN 202123193822U CN 216336600 U CN216336600 U CN 216336600U
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Abstract
The utility model provides a chlorine gasification purification device which comprises a cold water recoverer, a vaporizer and a buffer tank, wherein the bottom of the cold water recoverer is provided with a chilled water inlet and a first liquid chlorine inlet, the top of the cold water recoverer is provided with a chilled water return port and a liquid chlorine outlet, the bottom of the vaporizer is provided with a steam condensate water inlet and a second liquid chlorine inlet, the liquid chlorine outlet is connected with the second liquid chlorine inlet, the top of the vaporizer is provided with a steam condensate water return port and a chlorine gas outlet, the chlorine gas outlet is connected with the buffer tank, the top of the buffer tank is provided with an outlet pipeline, and the outlet pipeline is provided with a pressure regulating valve. According to the utility model, the liquid chlorine is preheated by using the cooling water of the cooling system, so that the subsequent gasification energy consumption can be reduced, and the cold energy of chilled water can be saved; the hot water of the steam condensate recovery system is used for gasifying the liquid chlorine, and the liquid chlorine and the nitrogen trichloride can be gasified simultaneously, so that the explosion risk caused by nitrogen trichloride enrichment is avoided.
Description
Technical Field
The utility model belongs to the field of chlor-alkali industry, and particularly relates to a chlorine gasification and purification device.
Background
At present, all the national industrial chlorine preparation processes are electrolytic salt water, ammonia and ammonium substances exist in the salt water, nitrogen trichloride is generated in the chlorine, the chlorine is mainly liquefied, then a purification method of gasification consumes a large amount of cold and heat, meanwhile, the traditional gasification adopts a warm water vaporization mode at 40 ℃, when liquid chlorine in a vaporizer is vaporized, the separation coefficient of the nitrogen trichloride and the chlorine is 6-10, the nitrogen trichloride exists in the unevaporated liquid chlorine in a large amount, the density of the nitrogen trichloride is higher than that of the liquid chlorine, so that the nitrogen trichloride can be enriched on the bottom layer of the liquid chlorine and gradually increases along with time, and when the content of the nitrogen trichloride reaches 5%, the explosion risk exists.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a safe and energy-saving chlorine gasification purification device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a chlorine gasification purification device comprises a cold water recoverer, a vaporizer and a buffer tank;
the bottom of the cold water recoverer is provided with a chilled water inlet and a first liquid chlorine inlet, and the top of the cold water recoverer is provided with a chilled water return port and a liquid chlorine outlet;
the bottom of the vaporizer is provided with a steam condensate water inlet and a second chlorine liquid inlet, the chlorine liquid outlet is connected with the second chlorine liquid inlet, the top of the vaporizer is provided with a steam condensate water return port and a chlorine gas outlet, and the chlorine gas outlet is connected with a buffer tank;
the top of buffer tank is equipped with the export pipeline, the export pipeline is provided with the air-vent valve.
Further, the cold water recoverer and the vaporizer both adopt tube type heat exchangers.
Furthermore, the bottoms of the first liquid chlorine inlet, the second liquid chlorine inlet and the buffer tank are respectively provided with a sewage discharge valve.
Further, a safety valve is arranged at the top of the buffer tank and connected with an accident chlorine absorption tower.
Further, the liquid chlorine import is equipped with the trip valve, the top of buffer tank is equipped with manometer and pressure control siren, the pressure control siren is interlocked with the trip valve.
Further, the outlet end of the pressure regulating valve is provided with a pressure gauge and a pressure controller, and the pressure controller is interlocked with the pressure regulating valve.
Furthermore, connecting pipelines among all components of the chlorine gasification and purification device are covered with heat insulation sleeves.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the liquid chlorine is preheated by using the cooling water of the cooling system, so that the subsequent gasification energy consumption can be reduced, and the cold energy of the liquid chlorine can be recovered into the condensate water, thereby saving the cold energy of the chilled water;
the hot water of the steam condensate water recovery system is used for gasifying the liquid chlorine, the liquid chlorine and the nitrogen trichloride can be gasified at the same time, and the nitrogen trichloride is decomposed to obtain chlorine, so that the explosion risk caused by nitrogen trichloride enrichment is avoided, and the energy can be saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. the system comprises a cold water recoverer, 2, a vaporizer, 3, a buffer tank, 4, a chilled water inlet, 5, a first liquid chlorine inlet, 6, a chilled water return port, 7, a liquid chlorine outlet, 8, a steam condensate inlet, 9, a second liquid chlorine inlet, 10, a steam condensate return port, 11, a chlorine outlet, 12, a pressure regulating valve, 13, a sewage discharge valve, 14, a safety valve, 15, a stop valve, 16, a pressure gauge, 17, a pressure control alarm, 18 and a pressure controller.
Detailed Description
The present invention is further described in detail below with reference to specific examples so that those skilled in the art can more clearly understand the present invention.
As shown in fig. 1, a chlorine gasification purification device comprises a cold water recoverer 1, a vaporizer 2 and a buffer tank 3;
the bottom of the cold water recoverer 1 is provided with a chilled water inlet 4 and a first liquid chlorine inlet 5, the top of the cold water recoverer 1 is provided with a chilled water return port 6 and a liquid chlorine outlet 7, the chilled water inlet 4 and the chilled water return port 6 are both connected with a cooling water system of a previous chlorine liquefaction process, and liquid chlorine exchanges heat with cooling water in the cold water recoverer 1, so that part of cold energy is recovered into the cooling water, cold loss is reduced, and meanwhile, the cooling water preheats the liquid chlorine, and heat is saved for subsequent gasification;
the bottom of the vaporizer 2 is provided with a steam condensate inlet 8 and a second chlorine inlet 9, the chlorine outlet 7 is connected with the second chlorine inlet 9, the top of the vaporizer 2 is provided with a steam condensate return port 10 and a chlorine outlet 11, the chlorine outlet 11 is connected with the buffer tank 3, the steam condensate inlet 8 and the steam condensate return port 10 are both connected with a steam condensate recovery system, the temperature of the steam condensate is 75-85 ℃, the steam condensate can simultaneously vaporize liquid chlorine and nitrogen trichloride, the natural explosion temperature of the nitrogen trichloride is avoided, and the nitrogen trichloride is gasified and decomposed into nitrogen and chlorine, so that the enrichment of the nitrogen trichloride is avoided;
the top of the buffer tank 3 is provided with an outlet pipe provided with a pressure regulating valve 12 to regulate the output air pressure.
The cold water recoverer 1 and the vaporizer 2 both adopt tube type heat exchangers, and heat exchange media enter from the bottom of the heat exchangers and flow out from the top of the heat exchangers so as to improve the gasification effect.
And the bottom parts of the first liquid chlorine inlet 5, the second liquid chlorine inlet 9 and the buffer tank 3 are respectively provided with a sewage discharge valve 13, and other impurities in the equipment are removed by periodically opening the sewage discharge valve 13 to prevent the impurities from being enriched.
The top of the buffer tank 3 is provided with a safety valve 14, the safety valve 14 is connected with an accident chlorine absorption tower, and when the pressure of the buffer tank 3 exceeds a specified value, the safety valve 14 is automatically opened to release the pressure to the accident chlorine absorption tower for treatment so as to ensure safety.
The liquid chlorine import 5 is equipped with trip valve 15, the top of buffer tank 3 is equipped with manometer 16 and pressure control siren 17, pressure control siren 17 is chain with trip valve 15, and above-mentioned manometer 16 is used for measuring the pressure in the buffer tank 3, and when pressure exceeded the specified value, pressure control siren 17 sent the police dispatch newspaper and controlled the trip valve 15 closure simultaneously, thereby stopped the feeding and prevented pressure further increase.
The outlet end of the pressure regulating valve 11 is provided with a pressure gauge 16 and a pressure controller 18, the pressure controller 18 is interlocked with the pressure regulating valve 12, the pressure gauge 16 measures the output pressure of the buffer tank 3, and the pressure controller 18 regulates the pressure regulating valve according to the pressure gauge 6 to ensure stable output pressure so as to protect the normal work of the subsequent working procedures.
Connecting pipelines among all components of the chlorine gasification and purification device are covered with heat insulation sleeves so as to reduce energy consumption during chlorine transportation.
The mechanisms, components and parts of the present invention which are not described in detail are all the existing structures which exist in the prior art. Can be purchased directly from the market.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A chlorine gasification purification device is characterized by comprising a cold water recoverer (1), a vaporizer (2) and a buffer tank (3);
a chilled water inlet (4) and a first liquid chlorine inlet (5) are formed in the bottom of the cold water recoverer (1), and a chilled water return port (6) and a liquid chlorine outlet (7) are formed in the top of the cold water recoverer (1);
a steam condensate water inlet (8) and a second chlorine liquid inlet (9) are formed in the bottom of the vaporizer (2), the chlorine liquid outlet (7) is connected with the second chlorine liquid inlet (9), a steam condensate water return port (10) and a chlorine gas outlet (11) are formed in the top of the vaporizer (2), and the chlorine gas outlet (11) is connected with the buffer tank (3);
the top of buffer tank (3) is equipped with the export pipeline, the export pipeline is provided with air-vent valve (12).
2. The chlorine gasification purification device of claim 1, wherein the cold water recoverer (1) and the vaporizer (2) both use tube-type heat exchangers.
3. The chlorine gasification purification device of claim 1, wherein the first liquid chlorine inlet (5), the second liquid chlorine inlet (9) and the bottom of the buffer tank (3) are provided with a blowdown valve (13).
4. The chlorine gasification purification device as claimed in claim 1, wherein a safety valve (14) is arranged at the top of the buffer tank (3), and the safety valve (14) is connected with an accident chlorine absorption tower.
5. The chlorine gasification purification device according to claim 1, wherein the liquid chlorine inlet (5) is provided with a shut-off valve (15), the top of the buffer tank is provided with a pressure gauge (16) and a pressure control alarm (17), and the pressure control alarm (17) is interlocked with the shut-off valve (15).
6. The chlorine gasification purification device as claimed in claim 1, wherein the outlet end of the pressure regulating valve (12) is provided with a pressure gauge (16) and a pressure controller (18), and the pressure controller (18) is interlocked with the pressure regulating valve (12).
7. The chlorine gasification purification device as claimed in claim 1, wherein the connecting pipes between the components of the chlorine gasification purification device are covered with heat insulation sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123193822.0U CN216336600U (en) | 2021-12-17 | 2021-12-17 | Chlorine gasification purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123193822.0U CN216336600U (en) | 2021-12-17 | 2021-12-17 | Chlorine gasification purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216336600U true CN216336600U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123193822.0U Active CN216336600U (en) | 2021-12-17 | 2021-12-17 | Chlorine gasification purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216336600U (en) |
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2021
- 2021-12-17 CN CN202123193822.0U patent/CN216336600U/en active Active
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