CN214305326U - Valve seat anti-coking system of coke cleaning butterfly valve - Google Patents
Valve seat anti-coking system of coke cleaning butterfly valve Download PDFInfo
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- CN214305326U CN214305326U CN202120342937.2U CN202120342937U CN214305326U CN 214305326 U CN214305326 U CN 214305326U CN 202120342937 U CN202120342937 U CN 202120342937U CN 214305326 U CN214305326 U CN 214305326U
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Abstract
The utility model discloses a disk seat coke-preventing system of coke cleaning butterfly valve has solved the unable coking of avoiding of disk seat department of butterfly valve among the prior art, the problem that can not effectively coke cleaning. The utility model comprises a valve seat and a valve seat anti-coking system, wherein the valve seat anti-coking system comprises a steam inlet pipe, a steam pressure stabilizing cavity, a steam circulation cavity, a steam sweeping annular seam and circulation holes; the steam pressure stabilizing cavity is sleeved at the bottom end of the valve seat, the circulation hole is arranged in the valve seat, one end of the circulation hole is communicated with the steam pressure stabilizing cavity, the steam circulation cavity is arranged in the valve seat, the other end of the circulation hole is communicated with the steam circulation cavity, and a steam sweeping circular seam is arranged between the steam circulation cavity and the valve seat; the steam sweeping circular seam is provided with a steam swirling flow groove which is arc-shaped; the circulation hole is communicated with the steam circulation cavity and the steam pressure stabilizing cavity and is uniformly distributed in a tangential porous way; the utility model has the advantages of disk seat department can effectively prevent the coking, satisfies ethylene device demand.
Description
Technical Field
The utility model relates to a butterfly valve, concretely relates to disk seat of coke cleaning butterfly valve prevents burnt system.
Background
In the ethylene device, a cracking gas big valve and a coke cleaning valve are respectively arranged on a pipeline from a cracking furnace to a cracking gas main pipe or to a coke burning tower. In small scale plants, gate valves are currently commonly used, and in large scale ethylene plants, butterfly valves are commonly used. As the pyrolysis gas is conveyed by solid, liquid and gas phases and the fluid medium contains a large amount of coke, in the using process of the valve, the coke is attached to the valve seat to lead the valve to be not tightly closed or not in place, the anti-coking treatment carried out by the butterfly valve used in the prior art at the valve seat has poor effect and can not meet the purpose requirement of the process working condition of the ethylene device all the time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the coking can't be avoided to the disk seat department of butterfly valve among the prior art, can not effectively coke cleaning, the utility model provides a solve the disk seat anti-coking system of coke cleaning butterfly valve of above-mentioned problem.
The utility model discloses a following technical scheme realizes:
a valve seat anti-coking system of a coke cleaning butterfly valve comprises a valve seat, is further optimized, and further comprises a valve seat anti-coking system, wherein the valve seat anti-coking system sequentially comprises a steam inlet pipe, a steam pressure stabilizing cavity, a steam circulation cavity, a steam blowing circular seam and a circulation hole according to an airflow transmission direction;
the steam pressure stabilizing cavity is sleeved at the bottom end of the valve seat, the circulation hole is arranged in the valve seat, one end of the circulation hole is communicated with the steam pressure stabilizing cavity, the steam circulation cavity is arranged in the valve seat, the other end of the circulation hole is communicated with the steam circulation cavity, and a steam sweeping circular seam is arranged between the steam circulation cavity and the valve seat;
the anti-coking steam enters the steam pressure stabilizing cavity through the arranged steam inlet pipe, after the whole steam pressure stabilizing cavity obtains continuous and stable pressure, the anti-coking steam uniformly enters the steam circulation cavity through the circulation holes arranged tangentially along the cavity of the steam pressure stabilizing cavity, and then the anti-coking steam is blown out through the steam sweeping circular seams, so that the purpose of protecting the valve seat is realized.
Through all setting up disk seat anti-coking system at the disk seat both ends, the medium all can play good anti-coking effect when entering from the both ends of valve, can realize the not coking purpose in disk seat sealing face department to can satisfy the demand of ethylene unit technology operating mode.
Further preferably, the steam sweeping circular seam is provided with a steam swirling groove which is arc-shaped, and circumferential steam for the valve seat can uniformly flow out. The arc-shaped steam swirling groove is formed in the circumference of the circumferential seam of the steam sweeping ring, and the anti-coking steam can be automatically accelerated to be uniformly sprayed out along the circumferential direction due to the arc-shaped steam swirling groove structure, so that the circumferential steam of the valve seat can be uniformly sprayed out, the anti-coking steam can be uniformly covered on the end face of the valve seat, and the anti-coking isolation effect of the circumferential ring of the valve seat is achieved.
Preferably, the circulation holes are communicated with the steam circulation cavity and the steam pressure stabilizing cavity, and the circulation holes are uniformly distributed in a tangential porous mode. Through setting up the annular flow hole intercommunication annular flow chamber, the porous even structural distribution in tangential of annular flow hole, with a plurality of arc steam vortex grooves coaction that evenly set up to realize that the annular flow chamber bears the homogeneity of pressure and steam flow on whole circumference unanimous, avoid the coking, have the effect of effective decoking.
The utility model discloses have following advantage and beneficial effect:
1. the utility model provides a valve seat anti-coking system of a coke cleaning butterfly valve, which comprises a steam inlet pipe, a steam pressure stabilizing cavity, a steam circulation cavity, a steam sweeping circular seam and a circulation hole in sequence according to the air flow transmission direction; the steam pressure stabilizing cavity is sleeved at the bottom end of the valve seat, the circulation hole is arranged in the valve seat, one end of the circulation hole is communicated with the steam pressure stabilizing cavity, the steam circulation cavity is arranged in the valve seat, the other end of the circulation hole is communicated with the steam circulation cavity, and a steam sweeping circular seam is arranged between the steam circulation cavity and the valve seat; after the anti-coking steam uniformly flows through the interior of the valve seat anti-coking system, the anti-coking steam is blown out through the steam blowing annular seam, so that the aims of protecting the valve seat, preventing coking and removing coking are fulfilled;
2. the steam sweeping circular seam of the utility model is provided with a steam swirling flow groove which is set to be arc-shaped and is used for the steam on the periphery of the valve seat to uniformly flow out; the circulation holes are communicated with the circulation cavity and the pressure stabilizing cavity and are uniformly distributed in a tangential porous mode; the automatic acceleration can be realized along the even blowout of circumferencial direction to guarantee that the periphery steam of disk seat can the even outflow, realize the even cover of the disk seat terminal surface of anti-coking steam, realize that the pressure that the circulation chamber bore on whole circumference is unanimous with the homogeneity of steam flow, avoid the coking, reach the effect that the disk seat periphery is prevented burnt and is kept apart.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a half-sectional view of the present invention.
Fig. 2 is a sectional view of a part a of the present invention.
Fig. 3 is a partial sectional view of a according to the present invention.
Reference numbers and corresponding part names in the drawings:
1-valve seat, 11-steam inlet pipe, 12-steam pressure stabilizing cavity, 13-steam circumfluence cavity, 14-circumfluence hole and 15-steam sweeping circumferential seam.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
The valve seat anti-coking system of the coke cleaning butterfly valve comprises a valve seat and is characterized by further comprising a valve seat anti-coking system, wherein the valve seat anti-coking system sequentially comprises a steam inlet pipe 11, a steam pressure stabilizing cavity 12, a steam circulation cavity 13, a steam sweeping circular seam 15 and a circulation hole 14 according to the airflow transmission direction;
the steam pressure stabilizing cavity 12 is sleeved at the bottom end of the valve seat 1, the circulation hole 4 is arranged in the valve seat 1, one end of the circulation hole 14 is communicated with the steam pressure stabilizing cavity 12, the steam circulation cavity 13 is arranged in the valve seat 1, the other end of the circulation hole 14 is communicated with the steam circulation cavity 13, and a steam sweeping annular seam 15 is arranged between the steam circulation cavity 13 and the valve seat 1;
example 2
The embodiment is further improved based on the embodiment 1, the steam sweeping circular seam 15 is provided with a steam swirling groove 16, and the steam swirling groove 16 is arranged in an arc shape, so that steam on the circumference of the valve seat 1 can uniformly flow out; the circulation holes 14 are communicated with the steam circulation cavity 13 and the steam pressure stabilizing cavity 12, and the circulation holes 14 are arranged to be uniformly distributed in a tangential porous mode.
The principle and the effect are as follows: the anti-coking steam enters the steam pressure stabilizing cavity 12 through the steam inlet pipe 11, after the cavity of the steam pressure stabilizing cavity 12 obtains continuous, stable and uniform pressure, the anti-coking steam uniformly enters the steam annular flow cavity 13 through the annular flow holes 14 which are distributed tangentially along the cavity of the steam pressure stabilizing cavity 12, then is uniformly sprayed out along the circumference in the steam vortex flow groove 16 through the steam sweeping annular seam 15, and the anti-coking process of the valve seat 1 is completed.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. A valve seat anti-coking system of a coke cleaning butterfly valve comprises a valve seat (1) and is characterized by further comprising a valve seat anti-coking system, wherein the valve seat anti-coking system sequentially comprises a steam inlet pipe (11), a steam pressure stabilizing cavity (12), a steam circulation cavity (13), a steam sweeping circular seam (15) and circulation holes (14) according to an airflow transmission direction;
the bottom of disk seat (1) is located to steam steady voltage chamber (12) cover, circulation hole (14) set up in disk seat (1), circulation hole (14) one end intercommunication steam steady voltage chamber (12), steam circulation chamber (13) set up in disk seat (1), and the other end of circulation hole (14) sets up intercommunication steam circulation chamber (13), be equipped with steam between steam circulation chamber (13) and disk seat (1) and sweep circumferential weld (15).
2. The valve seat anti-coking system of the coke cleaning butterfly valve according to claim 1, characterized in that the steam sweeping circular seam (15) is provided with a steam swirling groove (16), and the steam swirling groove (16) is arranged in an arc shape for uniform outflow of steam around the valve seat (1).
3. The valve seat anti-coking system of the decoking butterfly valve according to claim 1, characterized in that the circulation hole (14) is communicated with the steam circulation cavity (13) and the steam pressure stabilizing cavity (12), and the circulation hole (14) is arranged to be evenly distributed with multiple holes in the tangential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120342937.2U CN214305326U (en) | 2021-02-04 | 2021-02-04 | Valve seat anti-coking system of coke cleaning butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120342937.2U CN214305326U (en) | 2021-02-04 | 2021-02-04 | Valve seat anti-coking system of coke cleaning butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214305326U true CN214305326U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120342937.2U Active CN214305326U (en) | 2021-02-04 | 2021-02-04 | Valve seat anti-coking system of coke cleaning butterfly valve |
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| CN (1) | CN214305326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734038A (en) * | 2023-08-16 | 2023-09-12 | 石家庄先楚核能装备股份有限公司 | Butterfly valve with self-cleaning system and assembling method |
-
2021
- 2021-02-04 CN CN202120342937.2U patent/CN214305326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734038A (en) * | 2023-08-16 | 2023-09-12 | 石家庄先楚核能装备股份有限公司 | Butterfly valve with self-cleaning system and assembling method |
| CN116734038B (en) * | 2023-08-16 | 2023-10-31 | 石家庄先楚核能装备股份有限公司 | Butterfly valve with self-cleaning system and assembling method |
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