CN221054381U - Pressure reducing check valve for steam pipeline - Google Patents
Pressure reducing check valve for steam pipeline Download PDFInfo
- Publication number
- CN221054381U CN221054381U CN202322462699.0U CN202322462699U CN221054381U CN 221054381 U CN221054381 U CN 221054381U CN 202322462699 U CN202322462699 U CN 202322462699U CN 221054381 U CN221054381 U CN 221054381U
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- China
- Prior art keywords
- sleeve
- sealing sleeve
- sealing
- pressure reducing
- check valve
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- 238000007789 sealing Methods 0.000 claims abstract description 67
- 238000009434 installation Methods 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a pressure reducing check valve for a steam pipeline, which comprises a steam pressure reducing valve and a sealing assembly. According to the pressure reducing check valve for the steam pipeline, the pressing disc and the rigid sleeve are arranged in the mounting openings in the connecting flanges at the two sides of the steam pressure reducing valve, after the external flange is arranged outside the connecting flange, the first sealing sleeve and the second sealing sleeve at the two sides of the rigid sleeve are tightly pressed, the inner ends of the first sealing sleeve and the second sealing sleeve are both bound at the outer side of the rigid sleeve so as to keep the tightness between the connecting flange and the external flange, and the inner supporting rings and the inner supporting frames welded at the two ends in the rigid sleeve can strengthen the integral strength of the rigid sleeve in the connecting flange while the circulation of internal media is not influenced, and the positioning columns bound in the first sealing sleeve and the second sealing sleeve at the two ends of the pressing disc can also position the first sealing sleeve and the second sealing sleeve after being mounted and tightly pressed so as to ensure the accuracy and the stability of the mounting positions.
Description
Technical Field
The utility model relates to the technical field of steam pressure reducing valves, in particular to a pressure reducing check valve for a steam pipeline.
Background
The steam pressure reducing valve adopts the opening degree of an opening and closing piece in a control valve body to regulate the flow rate of a medium, reduces the pressure of the medium, and simultaneously regulates the opening degree of the opening and closing piece by the action of the pressure behind the valve, so that the pressure behind the valve is kept in a certain range, and under the condition that the inlet pressure is continuously changed, the outlet pressure is kept in a set range, and the subsequent life production appliances are protected.
The existing pressure reducing check valve for the steam pipeline, such as the one with strong applicability disclosed in the publication No. CN215635063U, has the advantage of being convenient for the valve clack to be replaced when being worn, but the inside of the flange plates at the two ends of the pressure reducing valve is inconvenient to be additionally provided with a sealing component, so that when the connection tightness requirement is higher, the high sealing connection of the pressure reducing valve has the problem of poor, and therefore, the pressure reducing check valve for the steam pipeline is provided.
Disclosure of utility model
The utility model mainly aims to provide a decompression check valve for a steam pipeline, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a decompression check valve for steam conduit, includes steam pressure reducing valve and seal assembly, the steam pressure reducing valve includes flange that its both ends set up to and flange external connection's that flange outer end is connected, seal assembly includes the mounting hole of all indent setups in the flange, and the rigidity sleeve of all movable match installations in the mounting hole, rigidity telescopic central authorities department still welded fastening has the pressing disc, pressing disc both sides rigidity sleeve upper end still movable match is equipped with first seal cover and second seal cover respectively.
Preferably, the pressing disc, the first sealing sleeve and the second sealing sleeve are matched with the mounting opening, and the mounting opening is of a cylindrical structure.
Preferably, the sealing assembly further comprises a plurality of groups of positioning columns which are fixedly arranged on two sides of the pressing disc in a welding mode, and a plurality of groups of positioning holes which are formed in a penetrating mode are formed in the upper ends of the first sealing sleeve and the second sealing sleeve in an arrangement mode, the positioning columns are matched with the positioning holes in a homogeneous mode, and the height of each positioning column is smaller than that of each positioning hole.
Preferably, the sealing assembly further comprises an inner support ring and an inner support frame, wherein the two ends of the inner support ring are welded and fixed in the rigid sleeve, and the inner support frame is welded and fixed in the inner support ring.
Preferably, the inner support ring is of a circular ring structure, and the inner support frame is of a rectangular frame structure.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, after the external flange is arranged outside the connecting flange, the first sealing sleeve and the second sealing sleeve at the two sides of the rigid sleeve are tightly pressed, and the inner ends of the first sealing sleeve and the second sealing sleeve are both bound at the outer side of the rigid sleeve so as to keep the tightness between the connecting flange and the external flange, and the inner supporting rings and the inner supporting frames welded at the two ends in the rigid sleeve can strengthen the integral strength of the rigid sleeve in the connecting flange without affecting the circulation of internal media, and the positioning posts bound in the first sealing sleeve and the second sealing sleeve arranged at the two ends of the pressing disc can also position the first sealing sleeve and the second sealing sleeve after being installed and tightly pressed so as to ensure the accuracy and stability of the installation position of the first sealing sleeve and the second sealing sleeve.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a block diagram of a rigid sleeve of the present utility model;
FIG. 3 is a disassembled view of the rigid sleeve of the present utility model;
figure 4 is a disassembled view of a first gland and a second gland according to the present utility model;
fig. 5 is a side view of the rigid sleeve of the present utility model.
Reference numerals:
100. A steam pressure reducing valve; 101. a connecting flange; 102. an external flange;
200. A seal assembly; 201. a mounting port; 202. a rigid sleeve; 203. pressing a disc; 204. a first gland; 205. a second gland; 206. positioning columns; 207. positioning holes; 208. an inner support ring; 209. an inner supporting frame.
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.
Embodiment one:
As shown in fig. 1-5, this embodiment provides a pressure-reducing check valve for steam pipelines, including a steam pressure-reducing valve 100 and a sealing component 200, the steam pressure-reducing valve 100 includes a connecting flange 101 disposed at two ends thereof, and an external flange 102 connected to the outer end of the connecting flange 101, the sealing component 200 includes a mounting opening 201 disposed in the connecting flange 101 and having a plurality of groups of positioning holes 207 disposed therein, and a rigid sleeve 202 disposed in the mounting opening 201 and movably matched therewith, a pressing disc 203 is welded and fixed at the center of the rigid sleeve 202, a first sealing sleeve 204 and a second sealing sleeve 205 are disposed at the upper ends of the rigid sleeve 202 and are movably matched therewith, the pressing disc 203, the first sealing sleeve 204 and the second sealing sleeve 205 are matched with the mounting opening 201, the mounting opening 201 is a cylindrical structure, the sealing component 200 further includes a plurality of groups of positioning holes 207 disposed at two sides of the pressing disc 203 and arranged and welded and fixed with each other, a plurality of groups of positioning holes 207 disposed throughout the upper ends of the first sealing sleeve 204 and the second sealing sleeve 205 are disposed, the positioning holes 206 are matched with each other, and the height of the positioning holes 207 is smaller than that of the positioning holes 207, the rigid sleeve 202 is also welded with an inner supporting ring 208 of the inner supporting ring 208, which is a supporting ring 209 is welded and fixed inside the supporting ring of the supporting frame.
Specifically, the steam pressure reducing valve 100 is an apparatus for adjusting the medium flow by controlling the opening of the opening and closing member in the valve body, the pressing disc 203 and the rigid sleeve 202 mounted in the mounting opening 201 in the connecting flange 101 at two sides of the steam pressure reducing valve 100 can compress the first sealing sleeve 204 and the second sealing sleeve 205 at two sides of the rigid sleeve 202 after the external flange 102 is mounted outside the connecting flange 101, and the inner ends of the first sealing sleeve 204 and the second sealing sleeve 205 are both restrained at the outer side of the rigid sleeve 202 so as to maintain the tightness between the connecting flange 101 and the external flange 102, and the inner supporting rings 208 and the inner supporting frames 209 welded at two ends in the rigid sleeve 202 can strengthen the integral strength of the rigid sleeve 202 in the connecting flange 101 while the medium circulation inside is not affected, and simultaneously, the positioning columns 206 restrained in the first sealing sleeve 204 and the second sealing sleeve 205 arranged at two ends of the pressing disc 203 can also position the first sealing sleeve 204 and the second sealing sleeve 205 after being mounted and compressed so as to ensure the accuracy and stability of the mounting position.
The working principle and the using flow of the utility model are as follows:
When the steam pressure reducing valve 100 is installed, the first sealing sleeve 204 and the second sealing sleeve 205 are sleeved at two ends of the rigid sleeve 202 respectively, after the first sealing sleeve 204 and the second sealing sleeve 205 are sleeved, the first sealing sleeve 204 and the second sealing sleeve 205 are simultaneously moved inwards, so that the positioning holes 207 at the upper ends of the first sealing sleeve 204 and the second sealing sleeve 205 are sequentially matched and moved to the outside of the positioning columns 206 at two sides of the pressing disc 203 at the center of the rigid sleeve 202, after the whole assembly of the rigid sleeve 202 is completed, the whole assembly is installed inside the installation opening 201 in the connecting flange 101, then the connecting flange 101 is connected and fixed with the external flange 102, the connecting flange 101 and the external flange 102 are locked through screws, and the first sealing sleeve 204 and the second sealing sleeve 205 sleeved at two ends of the rigid sleeve 202 are also pressed tightly in the installation opening 201, and the two ends of the first sealing sleeve 204 and the second sealing sleeve 205 are tightly attached to the inner walls of the connecting flange 101 and the external flange 102, so that the sealing connection between the connecting flange 101 and the external flange 102 is kept.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides a decompression check valve for steam conduit, includes steam pressure reducing valve (100) and sealing component (200), steam pressure reducing valve (100) are including flange (101) that its both ends set up to and external flange (102) that flange (101) outer end is connected, a serial communication port, sealing component (200) are including mounting hole (201) that flange (101) were interior all indent offered, and rigid sleeve (202) of all movable match installation in mounting hole (201), the central department of rigid sleeve (202) still welded fastening has pressing plate (203), pressing plate (203) both sides rigid sleeve (202) upper end still movable match respectively is equipped with first seal cover (204) and second seal cover (205).
2. The pressure reducing check valve for a steam pipeline according to claim 1, wherein the pressing disc (203), the first sealing sleeve (204) and the second sealing sleeve (205) are matched with the mounting port (201), and the mounting port (201) is of a cylindrical structure.
3. The pressure reducing check valve for a steam pipeline according to claim 1, wherein the sealing assembly (200) further comprises a plurality of groups of positioning columns (206) which are fixedly arranged on two sides of the pressing disc (203) in a welding mode, and a plurality of groups of positioning holes (207) which are formed through the upper ends of the first sealing sleeve (204) and the second sealing sleeve (205) in a penetrating mode are arranged on the upper ends of the first sealing sleeve and the second sealing sleeve, the positioning columns (206) are matched with the positioning holes (207), and the height of the positioning columns (206) is smaller than that of the positioning holes (207).
4. The pressure relief check valve for a steam pipe according to claim 1, wherein the sealing assembly (200) further comprises an inner support ring (208) welded to both ends of the rigid sleeve (202), and an inner support frame (209) welded to both ends of the inner support ring (208).
5. The pressure-reducing check valve for a steam pipe according to claim 4, wherein the inner support ring (208) has a circular ring-shaped structure, and the inner support frame (209) has a rectangular frame-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322462699.0U CN221054381U (en) | 2023-09-11 | 2023-09-11 | Pressure reducing check valve for steam pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322462699.0U CN221054381U (en) | 2023-09-11 | 2023-09-11 | Pressure reducing check valve for steam pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221054381U true CN221054381U (en) | 2024-05-31 |
Family
ID=91222680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322462699.0U Active CN221054381U (en) | 2023-09-11 | 2023-09-11 | Pressure reducing check valve for steam pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221054381U (en) |
-
2023
- 2023-09-11 CN CN202322462699.0U patent/CN221054381U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |