CN214880208U - Acetylene purification waste sodium hypochlorite solution recycling and preparing device - Google Patents
Acetylene purification waste sodium hypochlorite solution recycling and preparing device Download PDFInfo
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- CN214880208U CN214880208U CN202022725775.9U CN202022725775U CN214880208U CN 214880208 U CN214880208 U CN 214880208U CN 202022725775 U CN202022725775 U CN 202022725775U CN 214880208 U CN214880208 U CN 214880208U
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Abstract
The utility model provides a device is reformulated in recovery of clear useless sodium hypochlorite solution of acetylene, the structure is: the process water pipeline is used for introducing process water into the Venturi reactor, is vertically arranged, and the end of the liquid outlet pipe is downward and is connected to the inlet at the top of the Venturi reactor; the chlorine pipeline and the sodium hydroxide solution pipeline are both horizontally arranged and are respectively communicated to side inlets at two sides of the Venturi reactor for introducing chlorine and sodium hydroxide solution into the Venturi reactor; an outlet at the bottom of the Venturi reactor is communicated with a first inlet of the Venturi mixer through a concentrated sodium hypochlorite pipeline, and an electromagnetic flow meter is arranged on the concentrated sodium hypochlorite pipeline; the waste sodium hypochlorite solution pipeline is used for conveying the waste sodium hypochlorite solution from which acetylene gas is removed, the end of a liquid outlet pipe is connected to the second inlet of the Venturi mixer, and the outlet at the bottom of the Venturi mixer is connected to the storage tank through a dilute sodium hypochlorite solution pipeline; each pipeline is provided with a regulating valve and an electromagnetic flowmeter. The utility model discloses can reduce the energy consumption, practice thrift the cost.
Description
Technical Field
The utility model relates to a sodium hypochlorite is prepared twice simultaneously, more specifically says that a device is prepared again to peace and quiet useless sodium hypochlorite solution recovery of acetylene.
Background
In the process of producing polyvinyl alcohol by calcium carbide method, the acetylene gas produced by calcium carbide contains H3P、H2S, and H3P、H2S can deactivate zinc acetate which is a catalyst for synthesizing vinyl acetate, so H needs to be removed in the process of acetylene purification3P、H2And S. When sodium hypochlorite solution prepared by chlorine, 32 percent sodium hydroxide solution and process water is selected to remove H3P、H2S, about 0.8t of waste aqueous sodium hypochlorite solution is generated every 1tVAC of production, and the main components of the aqueous sodium hypochlorite solution are sodium hypochlorite and a small amount of acetylene gas. Therefore, not only is water wasted, but also the environmental protection treatment is greatly influenced. And the solution to the useless sodium hypochlorite solution of removing acetylene gas recycle needs concentrated sodium hypochlorite solution holding vessel to and carry concentrated sodium hypochlorite solution to the venturi mixer and carry out the delivery pump that the secondary was prepared, increase equipment cost and operation energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned technical problem, provide a device is reformulated in recovery of the clean useless sodium hypochlorite solution of acetylene to can reduce the energy consumption, practice thrift the cost by the hope.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a device is reformulated in recovery of clear useless sodium hypochlorite solution of acetylene which structural feature is:
the system comprises a process water pipeline, a chlorine pipeline, a sodium hydroxide solution pipeline, a Venturi reactor, a concentrated sodium hypochlorite pipeline, a waste sodium hypochlorite solution pipeline, a Venturi mixer, a dilute sodium hypochlorite solution pipeline and a storage tank, wherein each pipeline is provided with an adjusting valve and an electromagnetic flowmeter;
the process water pipeline is used for introducing process water into the Venturi reactor, is vertically arranged, and is connected with the top inlet of the Venturi reactor with the end of a liquid outlet pipe facing downwards; the chlorine pipeline and the sodium hydroxide solution pipeline are both horizontally arranged and are respectively communicated to side inlets at two sides of the Venturi reactor for introducing chlorine and sodium hydroxide solution into the Venturi reactor; an outlet at the bottom of the Venturi reactor is communicated with a first inlet of the Venturi mixer through the concentrated sodium hypochlorite pipeline, and an electromagnetic flowmeter is arranged on the concentrated sodium hypochlorite pipeline;
the waste sodium hypochlorite solution pipeline is used for conveying waste sodium hypochlorite solution from which acetylene gas is removed, the liquid outlet pipe end is connected to the second inlet of the Venturi mixer, and the bottom outlet of the Venturi mixer is connected to the storage tank through a dilute sodium hypochlorite solution pipeline.
Further:
the process water is desalted water.
The sodium hydroxide solution line delivers a 32% strength sodium hydroxide solution.
Compared with the prior art, the utility model discloses beneficial effect embodies:
the utility model discloses at first according to a certain proportion with chlorine, sodium hydroxide solution and process water are made into concentrated sodium hypochlorite solution through the venturi reactor, again with the useless sodium hypochlorite solution that has detached acetylene gas make into required fresh sodium hypochlorite solution through the venturi mixer according to a certain proportion, thereby, can directly once only prepare fresh sodium hypochlorite solution, concentrated sodium hypochlorite solution hold up tank has been reduced and the configuration that carries out the secondary and prepares the delivery pump to the venturi mixer, the equipment cost of having practiced thrift delivery pump and concentrated sodium hypochlorite storage tank and the consumption of delivery pump electric energy in the production process, the potential safety hazard that a small amount of acetylene gas and chlorine contact production chloroethyne took place to explode in the useless sodium hypochlorite solution has also been avoided simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1 a Venturi reactor; 2 a venturi mixer; 3, a process water pipeline; 4 a chlorine pipeline; 5 sodium hydroxide solution pipeline; 6 a concentrated sodium hypochlorite pipeline; 7 waste sodium hypochlorite solution pipeline; 8 a dilute sodium hypochlorite solution pipeline; 9 adjusting valve; 10 an electromagnetic flow meter; 11 reservoir tank.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the recycling and re-preparing apparatus for acetylene purification waste sodium hypochlorite solution of the present embodiment has the following structural features:
the system comprises a process water pipeline 3, a chlorine gas pipeline 4, a sodium hydroxide solution pipeline 5, a Venturi reactor 1, a concentrated sodium hypochlorite pipeline 6, a waste sodium hypochlorite solution pipeline 7, a Venturi mixer 2, a dilute sodium hypochlorite solution pipeline 8 and a storage tank 11, wherein each pipeline is provided with an adjusting valve 9 and an electromagnetic flowmeter 10;
the process water pipeline 3 is used for introducing process water into the Venturi reactor 1, is vertically arranged, has a liquid outlet pipe end facing downwards and is connected to the top inlet of the Venturi reactor 1; the chlorine pipeline 4 and the sodium hydroxide solution pipeline 5 are both horizontally arranged and are respectively communicated to side inlets at two sides of the Venturi reactor 1 for introducing chlorine and sodium hydroxide solution into the Venturi reactor 1; an outlet at the bottom of the Venturi reactor 1 is communicated with a first inlet of the Venturi mixer 2 through a concentrated sodium hypochlorite pipeline 6, and an electromagnetic flow meter 10 is arranged on the concentrated sodium hypochlorite pipeline 6;
the waste sodium hypochlorite solution pipeline 7 is used for conveying waste sodium hypochlorite solution which is heated to remove most of acetylene gas, the liquid outlet pipe end is connected to the second inlet of the Venturi mixer 2, and the bottom outlet of the Venturi mixer 2 is connected to the storage tank 11 through the dilute sodium hypochlorite solution pipeline 8.
Wherein the process water is desalted water, which is water with strong electrolyte easy to remove removed or reduced to a certain degree, and the residual salt content is 1-5 mg/L.
The sodium hydroxide solution line 5 delivers a 32% strength sodium hydroxide solution.
The working principle is as follows:
the process water is input through the pipe liquid inlet pipe end of the process water pipeline 3, the chlorine gas is input through the pipe gas inlet pipe end of the chlorine gas pipeline 4, the sodium hydroxide solution is input through the pipe liquid inlet pipe end of the sodium hydroxide solution pipeline 5, the process water, the chlorine gas and the sodium hydroxide solution are introduced into the Venturi reactor 1 together according to a certain preparation proportion, the concentrated sodium hypochlorite solution prepared by the Venturi reactor 1 enters the Venturi mixer 2 through the concentrated sodium hypochlorite pipeline 6, the waste sodium hypochlorite solution with acetylene gas removed is input through the pipe liquid inlet pipe end of the waste sodium hypochlorite solution pipeline 7, and the sodium hypochlorite solution and the concentrated sodium hypochlorite solution are also introduced into the Venturi mixer 2 according to a certain proportion according to the process requirement, the required fresh sodium hypochlorite solution is obtained by mixing the Venturi mixer 2, and the obtained fresh sodium hypochlorite solution flows into the storage tank 11 from the bottom outlet of the Venturi mixer 2 through the diluted sodium hypochlorite solution pipeline 8.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (3)
1. The utility model provides a clean useless sodium hypochlorite solution of acetylene retrieves and reforms preparation device which characterized by:
the system comprises a process water pipeline, a chlorine pipeline, a sodium hydroxide solution pipeline, a Venturi reactor, a concentrated sodium hypochlorite pipeline, a waste sodium hypochlorite solution pipeline, a Venturi mixer, a dilute sodium hypochlorite solution pipeline and a storage tank, wherein each pipeline is provided with an adjusting valve and an electromagnetic flowmeter;
the process water pipeline is used for introducing process water into the Venturi reactor, is vertically arranged, and is connected with the top inlet of the Venturi reactor with the end of a liquid outlet pipe facing downwards; the chlorine pipeline and the sodium hydroxide solution pipeline are both horizontally arranged and are respectively communicated to side inlets at two sides of the Venturi reactor for introducing chlorine and sodium hydroxide solution into the Venturi reactor; an outlet at the bottom of the Venturi reactor is communicated with a first inlet of the Venturi mixer through the concentrated sodium hypochlorite pipeline, and an electromagnetic flowmeter is arranged on the concentrated sodium hypochlorite pipeline;
the waste sodium hypochlorite solution pipeline is used for conveying waste sodium hypochlorite solution from which acetylene gas is removed, the liquid outlet pipe end is connected to the second inlet of the Venturi mixer, and the bottom outlet of the Venturi mixer is connected to the storage tank through a dilute sodium hypochlorite solution pipeline.
2. The apparatus for recovering and reformulating a waste sodium hypochlorite solution for acetylene purification according to claim 1, wherein: the process water is desalted water.
3. The apparatus for recovering and reformulating a waste sodium hypochlorite solution for acetylene purification according to claim 1, wherein: the sodium hydroxide solution line delivers a 32% strength sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022725775.9U CN214880208U (en) | 2020-11-23 | 2020-11-23 | Acetylene purification waste sodium hypochlorite solution recycling and preparing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022725775.9U CN214880208U (en) | 2020-11-23 | 2020-11-23 | Acetylene purification waste sodium hypochlorite solution recycling and preparing device |
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| Publication Number | Publication Date |
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| CN214880208U true CN214880208U (en) | 2021-11-26 |
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| CN202022725775.9U Active CN214880208U (en) | 2020-11-23 | 2020-11-23 | Acetylene purification waste sodium hypochlorite solution recycling and preparing device |
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| CN (1) | CN214880208U (en) |
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