CN209818833U - Positive and negative pressure safety valve and VOCs purification treatment device applying same - Google Patents
Positive and negative pressure safety valve and VOCs purification treatment device applying same Download PDFInfo
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- CN209818833U CN209818833U CN201920158271.8U CN201920158271U CN209818833U CN 209818833 U CN209818833 U CN 209818833U CN 201920158271 U CN201920158271 U CN 201920158271U CN 209818833 U CN209818833 U CN 209818833U
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Abstract
The utility model discloses a positive negative pressure relief valve and use VOCs purification unit of this valve belongs to coking industry exhaust-gas treatment field, and its technical scheme main points are including the trachea of being connected with equipment, set up the end cover of keeping away from equipment one end at the trachea, set up the electromagnet between end cover and trachea, the trachea is the horizontal direction setting, tracheal opening is the slope mouth and is 2 jiaos with vertical direction, the end cover covers tracheal opening and contradicts, the end cover is articulated with tracheal opening top, the embedded setting of electromagnet is in tracheal opening bottom, the end cover is contradicted with the electromagnet surface. The utility model discloses an articulated end cover that has inclination, the electromagnetic chuck setting that tracheal opening has can play sealed stable in, can in time effective feedback pressure difference change and make end cover switch's effect.
Description
Technical Field
The utility model relates to a coking industry exhaust-gas treatment field, in particular to positive negative pressure relief valve and applied VOCs purification unit of this valve.
Background
With the rapid development of the steel industry, the coking industry has made great progress, but the environmental pollution is more and more serious. With the national policies of capacity and structure regulation, environmental protection is one of the hard indexes of the coking industry. The pollution problem of the waste gas of the coking industry is particularly prominent among various environmental protection problems of the coking industry.
The coking industrial waste gas is divided into inorganic waste gas and organic waste gas according to chemical properties. Inorganic exhaust gases include SO2, NOx, ammonia, H2S, and the like; organic waste gases (VOCs) are a general term for organic compounds with volatile properties, and mainly include aromatic compounds such as phenols, naphthalene, anthracene, and the like, and homologues thereof.
The sources of the coking industrial waste gas mainly focus on the process, the device, the raw materials and the products, and the analysis shows that the inorganic waste gas mainly comes from the coke oven flue gas, the coke oven gas, the ammonium sulfate device diffusion, the ammonia still device diffusion, the ammonia water storage tank diffusion and the like; the organic waste gas mainly comes from the diffused waste gas of various oil product storage tanks, organic volatile gas dissipated in the oil product loading process and the like.
In the current market, in the aspect of organic waste gas (VOCs) treatment, some chemical elements in gas are separated by pressure or condensation, but in the separation process, the pressure in equipment needs to be accurately controlled, when the pressure in the equipment changes, even slight pressure overload needs to be caused, the equipment needs to be subjected to pressure relief work when the equipment is combined with the chemical elements, otherwise, the situation of explosion caused by excessive pressure occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a positive negative pressure relief valve has the advantage that can make sensitive reaction immediately to slight pressure change.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a positive negative pressure relief valve, includes the trachea of being connected with equipment, sets up the end cover of keeping away from equipment one end at the trachea, sets up the electromagnet between end cover and trachea, the trachea is the horizontal direction setting, tracheal opening is the slope mouth and is 2 jiaos with vertical direction, the end cover covers tracheal opening and contradicts, the end cover is articulated with tracheal opening top, the embedded setting of electromagnet is in tracheal opening bottom, the end cover contradicts with the electromagnet surface.
By adopting the technical scheme, the end cover is abutted against the opening of the air pipe to realize sealing, the end cover which is obliquely arranged at an angle of 2 degrees is used for sealing the opening of the air pipe under the action of self gravity, and meanwhile, the abutting force of the end cover to the opening of the air pipe is smaller than the gravity of the self mass; the electromagnetic chuck provides certain suction, is favorable to improving the opening sealing of end cover and trachea, when the pressure value change in the trachea, can open the end cover but not necessarily open completely, has the advantage that can make sensitive reaction immediately to slight pressure change. The suction force of the electromagnetic chuck can be adjusted, and the electromagnetic chuck can be adjusted according to actual working conditions in the using process, so that the positive and negative pressure safety valve can be suitable for equipment with different pressures.
Furthermore, the gravity of the end cover and the suction force of the electromagnetic chuck are more than or equal to the pressure in the trachea.
By adopting the technical scheme, the safety valve has a maximum safety value in the working process, when the pressure of the working position exceeds the maximum value, the end cover can be opened, the suction force of the electromagnetic chuck can be adjusted according to the requirement of the pressure safety value, and the stable operation of the positive and negative pressure safety valve is ensured.
Furthermore, an anti-corrosion layer is arranged on the surface of the opening of the air pipe, and the anti-corrosion layer is abutted to the end cover.
Through adopting above-mentioned technical scheme, have a large amount of chemical gas in the trachea, probably lead to the fact the corruption to tracheal opening surface, and lead to sealing performance poor between end cover and the tracheal opening, the anticorrosive coating has effectively reduced the tracheal opening surface condition of corroding of appearing.
Further, the thickness of the anti-corrosion layer is less than or equal to 1 mm.
By adopting the technical scheme, the excessively thick anti-corrosion layer can influence the overturning and covering of the end cover and influence the opening sealing performance of the end cover on the air pipe.
Furthermore, a sealing layer is arranged on one side, abutted against the air pipe, of the end cover, and abutted against the anti-corrosion layer.
By adopting the technical scheme, the surface of the end cover cannot be completely smooth, and the sealing property between the end cover and the opening of the air pipe is improved by arranging the sealing layer.
Further, the thickness of the sealing layer is less than or equal to 1 mm.
Through adopting above-mentioned technical scheme, the sealing layer of excessive thickness can influence the end cover upset and cover, influences the opening leakproofness of end cover to the trachea.
Furthermore, the diameter range of the electromagnetic chuck is controlled to be more than or equal to half of the opening thickness of the air pipe and less than or equal to the opening thickness of the air pipe.
Through adopting above-mentioned technical scheme, be favorable to electromagnet can be stable carry out the absorption work to the end cover, improve the stability that the end cover is sealed.
Further, the end cover is connected with the top end of the opening of the air pipe through a hinge.
By adopting the technical scheme, the end cover is convenient to open and close.
Another object of the utility model is to provide a VOCs purification unit, including any one of the aforesaid positive negative pressure relief valve.
Through adopting above-mentioned technical scheme, can effectual improvement purification unit including the pressure stable, reduce because the pressure difference causes the condition that the damage appears in purification unit overall structure.
To sum up, the utility model discloses following beneficial effect has:
have inclination's end cover through the articulated, the electromagnetic chuck setting that tracheal opening has can play sealed stable in, can in time effective feedback pressure difference change and make the effect of end cover switch.
Drawings
FIG. 1 is a schematic structural diagram of a positive and negative pressure relief valve in accordance with an embodiment;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 1;
FIG. 4 is a schematic diagram of a structure embodying an anti-corrosion layer according to one embodiment;
fig. 5 is a schematic structural diagram for embodying the sealing layer in the first embodiment.
In the figure, 1, trachea; 2. an end cap; 3. an electromagnetic chuck; 4. an anti-corrosion layer; 5. a sealing layer; 6. and (4) a hinge.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: the utility model provides a positive negative pressure relief valve, as shown in fig. 1 and 3, include trachea 1 that is connected with equipment, the setting is at trachea 1 end cover 2 of keeping away from equipment one end, electromagnetic chuck 3 of setting between end cover 2 and trachea 1, trachea 1 is the horizontal direction setting, trachea 1's opening is the slope mouth and is 2 jiaos with vertical direction, end cover 2 covers trachea 1's opening and conflicts, end cover 2 is articulated through hinge 6 (as shown in fig. 2) with trachea 1's opening top, the embedded opening bottom at trachea 1 that sets up of electromagnetic chuck 3, end cover 2 conflicts with 3 surfaces of electromagnetic chuck.
As shown in fig. 1 and 2, the end cap 2 is abutted against the opening of the air tube 1 to realize sealing, the end cap 2 which is obliquely arranged at an angle of 2 degrees is used for sealing the opening of the air tube 1 under the action of self gravity, and meanwhile, the abutting force of the end cap to the opening of the air tube 1 is smaller than the gravity of the self mass; the electromagnetic chuck 3 (shown in fig. 3) provides a certain suction force, which is beneficial to improving the sealing of the end cover 2 and the opening of the air pipe 1; because the suction of the electromagnetic chuck 3 can be adjusted, the electromagnetic chuck can be adjusted according to the actual working condition in the using process, so that the positive and negative pressure safety valve can be suitable for equipment with different pressures.
As shown in fig. 3, in order to improve the acting force of the electromagnetic chuck 3, the diameter range of the electromagnetic chuck 3 is controlled to be greater than or equal to half of the opening thickness of the air pipe 1 and less than or equal to the opening thickness of the air pipe 1, and a plurality of electromagnetic chucks are arranged below the opening of the air pipe 1, so that the electromagnetic chuck 3 can stably adsorb the end cover 2, and the sealing stability of the end cover 2 is improved.
As shown in fig. 1 and 2, in order to effectively improve the sensitivity of the positive and negative pressure safety valve, in a general use process, the air pipe 1 is correspondingly installed on equipment, the equipment has a safety pressure value, the safety pressure value is smaller than a critical safety maximum pressure value, and when the pressure value reaches the maximum safety value, the safety valve needs to be opened. In the using process, the gravity of the end cover 2 and the suction force of the electromagnetic chuck 3 (as shown in fig. 3) are generally set to be equal to or higher than the pressure in the air pipe 1, and the pressure in the air pipe 1 is the above-mentioned safe pressure value. Because the equipment that corresponds the installation is different, the setting of the gravity of end cover 2 and electromagnet 3's suction can be adjusted according to actual use condition.
As shown in fig. 1 and 2, when the pressure value in the air tube 1 changes and reaches a safe pressure value or exceeds a little, the end cover 2 is pushed open but is not necessarily opened completely, so that the pressure relief work is realized; when the pressure of the working position exceeds the safe pressure value but does not reach the critical safe maximum pressure value, the end cover 2 is flushed to carry out rapid pressure relief; the pressure sensor has the advantages that the pressure sensor can make a sensitive response to slight pressure change immediately and can discharge excessive pressure in time.
As shown in fig. 1 and 4, in the actual use process, the positive and negative pressure safety valve may be used in some pipelines with corrosive gas, a large amount of chemical gas may exist in the gas pipe 1, which may corrode the opening surface of the gas pipe 1, and thus the sealing performance between the end cap 2 and the opening of the gas pipe 1 is poor, and the opening surface of the gas pipe 1 is provided with the anti-corrosion layer 4, and the anti-corrosion layer 4 is abutted against the end cap 2. The anti-corrosion layer 4 is generally made of soft materials such as a silica gel layer, the thickness of the anti-corrosion layer is smaller than or equal to 1mm, the opening sealing performance of the end cover 2 and the air pipe 1 can be guaranteed while the corrosion condition of the opening surface of the air pipe 1 is effectively reduced, and the anti-corrosion layer 4 which is too thick can influence the overturning and covering of the end cover 2 and influence the opening sealing performance of the end cover 2 on the air pipe 1.
As shown in fig. 1 and 5, the surface of the end cap 2 cannot be completely smooth, and in order to further improve the sealing performance of the opening of the end cap 2 and the air pipe 1, a sealing layer 5 is arranged on the side where the end cap 2 is abutted against the air pipe 1, and the sealing layer 5 is abutted against an anti-corrosion layer 4; the sealing layer 5 is also made of soft materials such as a silica gel layer and the like, and the thickness is less than or equal to 1 mm; the opening sealing performance of the end cover 2 and the air pipe 1 is effectively improved, the end cover 2 is influenced to be overturned and covered by the excessively thick sealing layer 5, and the opening sealing performance of the end cover 2 to the air pipe 1 is influenced.
Example two: another object of the present invention is to provide a device for purifying and treating VOCs, comprising any one of the positive and negative pressure safety valves mentioned above; can effectively improve the pressure stability of the purification treatment device, and reduce the damage of the whole structure of the purification treatment device caused by the pressure difference.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. A positive and negative pressure safety valve is characterized in that: include trachea (1) be connected with equipment, set up end cover (2), the electromagnet (3) of setting between end cover (2) and trachea (1) of keeping away from equipment one end in trachea (1), trachea (1) is the horizontal direction setting, the opening of trachea (1) is the slope mouth and is 2 jiaos with vertical direction, end cover (2) cover the opening of trachea (1) and contradict, end cover (2) are articulated with the opening top of trachea (1), the embedded opening bottom that sets up in trachea (1) in electromagnet (3), end cover (2) are contradicted with electromagnet (3) surface.
2. A positive and negative pressure safety valve according to claim 1, wherein: the gravity of the end cover (2) and the suction force of the electromagnetic chuck (3) are more than or equal to the pressure in the air pipe (1).
3. A positive and negative pressure safety valve according to claim 1, wherein: an anti-corrosion layer (4) is arranged on the surface of an opening of the air pipe (1), and the anti-corrosion layer (4) is abutted to the end cover (2).
4. A positive and negative pressure safety valve according to claim 3, wherein: the thickness of the anti-corrosion layer (4) is less than or equal to 1 mm.
5. A positive and negative pressure safety valve according to claim 4, wherein: and a sealing layer (5) is arranged on one side, abutted against the air pipe (1), of the end cover (2), and the sealing layer (5) is abutted against the anti-corrosion layer (4).
6. A positive and negative pressure safety valve according to claim 5, wherein: the thickness of the sealing layer (5) is less than or equal to 1 mm.
7. A positive and negative pressure safety valve according to claim 1, wherein: the diameter range of the electromagnetic chuck (3) is controlled to be more than or equal to half of the opening thickness of the air pipe (1) and less than or equal to the opening thickness of the air pipe (1).
8. A positive and negative pressure safety valve according to claim 1, wherein: the end cover (2) is connected with the top end of the opening of the air pipe (1) through a hinge (6).
9. The utility model provides a VOCs purification unit which characterized in that: comprising a positive and negative pressure safety valve according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158271.8U CN209818833U (en) | 2019-01-29 | 2019-01-29 | Positive and negative pressure safety valve and VOCs purification treatment device applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158271.8U CN209818833U (en) | 2019-01-29 | 2019-01-29 | Positive and negative pressure safety valve and VOCs purification treatment device applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818833U true CN209818833U (en) | 2019-12-20 |
Family
ID=68872501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920158271.8U Active CN209818833U (en) | 2019-01-29 | 2019-01-29 | Positive and negative pressure safety valve and VOCs purification treatment device applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818833U (en) |
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2019
- 2019-01-29 CN CN201920158271.8U patent/CN209818833U/en active Active
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Effective date of registration: 20200630 Address after: 010000 e-a15, University Science Park, Genghis Khan East Street, Xincheng District, Hohhot, Inner Mongolia Autonomous Region Co-patentee after: Jiangsu Kuancheng Equipment Technology Co.,Ltd. Patentee after: Inner Mongolia Environmental Protection Technology Co.,Ltd. Address before: 010010 the 3rd and 4th floors of the main building of R & D center, No. 32, Tengfei South Road, Saihan District, Hohhot City, Inner Mongolia Autonomous Region Co-patentee before: Jiangsu Kuancheng Equipment Technology Co.,Ltd. Patentee before: Inner Mongolia Environmental Protection Investment Group Co.,Ltd. |