CN214618072U - Locking retaining ring structure that moves of high temperature valve - Google Patents
Locking retaining ring structure that moves of high temperature valve Download PDFInfo
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- CN214618072U CN214618072U CN202120950422.0U CN202120950422U CN214618072U CN 214618072 U CN214618072 U CN 214618072U CN 202120950422 U CN202120950422 U CN 202120950422U CN 214618072 U CN214618072 U CN 214618072U
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Abstract
The utility model discloses a locking retaining ring structure that moves of high temperature valve, including valve body, valve bonnet and four semi-rings, the valve bonnet is installed in the valve body, hold-down flange is installed to one side of valve bonnet, hold-down flange's one side of keeping away from the valve bonnet installs four semi-rings, four semi-ring joints are in the valve body. The utility model discloses with the traditional form by bolted connection valve gap and valve body of high temperature valve, change into four semi-ring joints at the inside structural style of valve body, four semi-rings play spacing and the effect of transmitting pressure, increase flange to thereby flange fixed valve bonnet plays sealed effect. Can replace traditional valve gap connection form, can play the fastening effect, can avoid the bolt to drop because of high temperature again, it is convenient to dismantle, has guaranteed the safe operation of high temperature valve.
Description
Technical Field
The utility model relates to a thermal power plant's unit field especially relates to a locking retaining ring structure that moves of high temperature valve.
Background
In a thermal power plant unit, all steam turbine bypass systems are provided with high bypass valves, and in the actual operation process, the working medium is high-temperature and high-pressure steam. When the trip of the unit causes the automatic main throttle to be suddenly closed, a large amount of steam generated in the boiler is discharged everywhere, resulting in dry burning of a reheater of the boiler. In order to prevent the reheater of the boiler from being burnt dry, the high-pressure bypass steam pressure reducing valve needs to be opened quickly when the automatic main steam valve is closed, at the moment, high-temperature and high-pressure steam flows into the reheater from a steam exhaust pipeline of the high-pressure cylinder through the pressure reducing valve, and the steam heated by the reheater is discharged to the condenser after being subjected to temperature reduction and pressure reduction through the opened steam pressure reducing valve of the low-pressure bypass. Thereby realizing shutdown without stopping the furnace and providing possibility for rapid recovery of the unit.
However, high-temperature steam enters the valve to cause the temperature of parts to rise and expand, and a connecting bolt of the valve cover and the valve body can be loosened due to over expansion of the valve body and the valve cover, so that the valve cannot be fastened, the valve is leaked, and the operation safety of a unit is seriously threatened; in addition, the threads of the connecting bolt can be locked with the threads of the valve body due to expansion and cannot be recovered, and when the valve needs to be overhauled and disassembled, the connecting bolt cannot be taken out, so that the disassembly is difficult.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking retaining ring structure that moves of high temperature valve to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a locking retaining ring structure that moves of high temperature valve, includes valve body, valve bonnet and four semi-rings, the valve bonnet is installed in the valve body, hold-down flange is installed to one side of valve bonnet, four semi-rings are installed to one side of keeping away from the valve bonnet of hold-down flange, four semi-ring joints are in the valve body.
As a further aspect of the present invention: the four half rings are composed of four half rings, and the four half rings of the four half rings are clamped inside the valve body.
As a further aspect of the present invention: the compression flange is fixedly installed in the valve body through a compression bolt, and the compression bolt is matched with the compression flange to compress the valve cover.
As a further aspect of the present invention: and one side of the four half rings is provided with a U-shaped groove.
As a further aspect of the present invention: the inner rings of the four half rings are provided with grooves.
As a further aspect of the present invention: and a sealing filler is arranged between the valve cover and the valve body.
As a further aspect of the present invention: the inside of valve body is provided with the draw-in groove, four semi-rings joint in the draw-in groove of four semi-rings.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses with the traditional form by bolted connection valve gap and valve body of high temperature valve, change into four semi-ring joints at the inside structural style of valve body, four semi-rings play spacing and the effect of transmitting pressure, increase flange to thereby flange fixed valve bonnet plays sealed effect. Can replace traditional valve gap connection form, can play the fastening effect, can avoid the bolt to drop because of high temperature again, it is convenient to dismantle, has guaranteed the safe operation of high temperature valve.
Drawings
Fig. 1 is a sectional view of a high-temperature valve anti-loosening check ring structure.
Fig. 2 is a cross-sectional view of four half rings of a high-temperature valve anti-loosening check ring structure.
Fig. 3 is a top view of four half rings of a high temperature valve anti-loosening check ring structure.
In the figure: 1. a valve body; 2. a valve housing; 3. a hold-down bolt; 4. compressing the flange; 5. and four semi-rings.
Detailed Description
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1:
referring to fig. 1 to 3, the high temperature valve anti-loosening check ring structure includes a valve body 1, a valve bonnet 2 and four half rings 5, wherein the valve bonnet 2 is installed in the valve body 1, a pressing flange 4 is installed on one side of the valve bonnet 2, the four half rings 5 are installed on one side of the pressing flange 4 away from the valve bonnet 2, and the four half rings 5 are clamped in the valve body 1.
The four half rings 5 are composed of four half rings, and the four half rings of the four half rings 5 are clamped in the valve body 1.
The compression flange 4 is fixedly installed in the valve body 1 through the compression bolt 3, and the compression bolt 3 is matched with the compression flange 4 to compress the valve cover 2.
Working principle of example 1: install four semi-rings 5 in the inside of valve body 1, then install clamp flange 4, with clamp flange 4 fixed mounting through clamp bolt 3, four semi-rings 5 joint is in the inside of valve body 1, and four semi-rings 5 set up the upside at clamp flange 4, carry out spacing fixed to clamp flange 4, clamp bolt 3's bottom cooperatees with clamp flange 4 simultaneously, 2 pushes down the valve bonnet, make valve bonnet 2 with 1 internal seal of valve body, clamp flange 4 is pulled up by clamp bolt 3 is reverse simultaneously, through the lower surface of four semi-rings 5, play spacing effect. After high-temperature high-pressure steam enters the valve, the valve cover 2 is pressed upwards, upward force is transmitted to the compression flange 4 through the compression bolt 3, then transmitted to the four semi-rings 5 and finally transmitted to the valve body 1.
Example 2:
referring to fig. 1 to 3, in the high temperature valve anti-loosening check ring structure, based on embodiment 1, a U-shaped groove is formed on one side of the four half rings 5, so that the four half rings 5 can be conveniently taken out when being disassembled, grooves are formed in inner rings of the four half rings 5, in order to install the check ring for a hole and ensure the fastening effect of the four half rings 5, a sealing filler is arranged between the valve cover 2 and the valve body 1, so as to enhance the sealing effect between the valve cover 2 and the valve body 1, a clamping groove is formed in the valve body 1, the four half rings of the four half rings 5 are clamped in the clamping groove, and the four half rings 5 are arranged on the upper side of the compression flange 4, so as to limit and fix the compression flange 4.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a retaining ring structure that moves is prevented to high temperature valve, includes valve body (1), valve bonnet (2) and four semi-rings (5), its characterized in that, install in valve body (1) valve bonnet (2), hold-down flange (4) are installed to one side of valve bonnet (2), four semi-rings (5) are installed to one side of keeping away from valve bonnet (2) of hold-down flange (4), four semi-rings (5) joint are in valve body (1).
2. The check ring structure of high temperature valve for preventing looseness according to claim 1, wherein the four half rings (5) are composed of four half rings, and the four half rings of the four half rings (5) are clamped inside the valve body (1).
3. A high-temperature valve anti-loosening retainer ring structure according to claim 2, wherein the compression flange (4) is fixedly installed in the valve body (1) through compression bolts (3), and the compression bolts (3) are matched with the compression flange (4) to compress the valve cover (2).
4. A check ring structure for high-temperature valve, according to claim 3, characterized in that one side of said four half rings (5) is provided with a U-shaped groove.
5. A high temperature valve check ring structure according to claim 3, characterized in that the inner ring of the four half rings (5) is provided with grooves.
6. A high-temperature valve anti-loose retainer ring structure according to claim 1, characterized in that a sealing filler is arranged between the valve cover (2) and the valve body (1).
7. The check ring structure of high temperature valve locking according to claim 2, characterized in that the valve body (1) is provided with a slot therein, and four half rings of the four half rings (5) are engaged in the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120950422.0U CN214618072U (en) | 2021-05-06 | 2021-05-06 | Locking retaining ring structure that moves of high temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120950422.0U CN214618072U (en) | 2021-05-06 | 2021-05-06 | Locking retaining ring structure that moves of high temperature valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214618072U true CN214618072U (en) | 2021-11-05 |
Family
ID=78406943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120950422.0U Active CN214618072U (en) | 2021-05-06 | 2021-05-06 | Locking retaining ring structure that moves of high temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214618072U (en) |
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2021
- 2021-05-06 CN CN202120950422.0U patent/CN214618072U/en active Active
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