CN201511340U - Valve seat freezing dismounting device - Google Patents
Valve seat freezing dismounting device Download PDFInfo
- Publication number
- CN201511340U CN201511340U CN2009202057367U CN200920205736U CN201511340U CN 201511340 U CN201511340 U CN 201511340U CN 2009202057367 U CN2009202057367 U CN 2009202057367U CN 200920205736 U CN200920205736 U CN 200920205736U CN 201511340 U CN201511340 U CN 201511340U
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- valve seat
- stressed
- freezing
- screw rod
- load
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- Expired - Lifetime
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Abstract
The utility model relates to a valve seat freezing dismounting device which is used for taking out the valve seat from a valve and comprises a load-carrying screw and a leakage-proof plate, wherein the leakage-proof plate is fixedly arranged at the opening of the valve seat; one end of the load-carrying screw passes through the leakage-proof plate to be connected with the valve seat and the other end thereof is connected with a load-carrying box; the bottom part of the load-carrying box is opened and the side edge thereof and the valve seat form a containing cavity; the side edge of the load-carrying box is provided with an opening which is used for injecting frozen liquid in the containing cavity; the connection part of the load-carrying screw and the load-carrying box is provided with a first locking nut used for screwing under the action of external force; and the frozen valve seat is taken out from the valve by drawing the load-carrying screw to lead the valve seat to suffer the outward tensile force. In the utility model, the valve seat is taken out from the valve in the spiral method by adopting the load-carrying screw fixed on the valve seat and using the principle of expansion caused by heat and contraction caused by cold. The device can quickly and safely remove the valve seat from the valve with simple implementation.
Description
Technical field
The utility model relates to a kind of extracting tool, relates in particular to a kind of freezing provision for disengagement of valve seat.
Background technology
In the overhaul in each cycle, all to overhaul wherein some electrical parallel flashboard valves according to maintenance program.Often can predictably run into the situation that causes sealing face damage owing to long-time running in maintenance process, and the quality of sealing surface directly influences the performance of valve, therefore each maintenance is all handled its sealing surface.Sealing face damage is slight, can eliminate defective by milled processed; But damage seriously, often need to change whole seal and just can deal with problems,, can't take out with conventional means because valve seat utilizes interference fit to be in the same place with following valve body.
And manufacturing firm does not provide corresponding specific purpose tool yet, therefore all the valve body integral replacing just can be finished maintenance for this type of serious valve of valve seat damage at every turn, owing to need lift, cut, polish, weld, detect a flaw, so workload is very big, long in time limit.
Therefore, prior art haves much room for improvement and improves.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, provides a kind of employing freezing disassembly method, safely and fast the freezing provision for disengagement that valve seat is dismantled from valve.
The technical scheme that its technical problem that solves the utility model adopts is:
Construct a kind of freezing provision for disengagement of valve seat, be used for valve seat is taken out from valve, it comprises stressed screw rod and Antileaking plate, and described Antileaking plate is fixedly installed on the opening of described valve seat, one end of described stressed screw rod passes described Antileaking plate and connects described valve seat, and the other end connects stressed box;
Described stressed box bottom opening forms a container cavity, is used to hold described valve seat (101) and freezing liquid;
Described stressed box side is provided with opening, is used for injecting freezing liquid to described container cavity;
Described stressed screw rod and stressed box junction are provided with first locking nut, are used for screwing under the effect of external force, make valve seat be subjected to outside pulling force by the stressed screw rod that stretches, and the valve seat after freezing is taken out from valve.
Freezing provision for disengagement described in the utility model, wherein, described Antileaking plate is a triangle, is used for adaptive valve seat with V-arrangement opening; Described stressed screw rod is a T shape;
Described Antileaking plate passes in the T shape portion of described stressed screw rod, is fastened on described valve seat back;
Described stressed screw rod is provided with second locking nut, is used for described stressed screw rod is fixed on described valve seat.
Freezing provision for disengagement described in the utility model wherein, is provided with baffle ring between described stressed box and the described valve seat, is used for stoping the freezing liquid of described container cavity to overflow.
Freezing provision for disengagement described in the utility model, wherein, the opening of described stressed box side is a U-shaped.
Freezing provision for disengagement described in the utility model, wherein, the opening of described stressed box side is circular.
The utility model is fixed in stressed screw rod on the valve seat by employing, utilizes the principle of expanding with heat and contract with cold, and with spiral method valve seat is taken out from valve.This device can be realized safely and fast valve seat being dismantled from valve, and implements simple.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the freezing provision for disengagement mounting structure figure of the utility model embodiment;
Fig. 2 is the assembly structure figure of the freezing provision for disengagement of the utility model embodiment when valve seat is taken out.
The specific embodiment
Below in conjunction with diagram, preferred embodiment of the present utility model is described in detail.
The freezing provision for disengagement mounted configuration of the utility model embodiment comprises valve seat 101, stressed box 102, stressed screw rod 106 and first locking nut 107 as shown in Figure 1.Wherein, stressed screw rod 106 1 ends connect valve seat 101, and the other end is connected with cylindric stressed box 102.The bottom opening of stressed box 102, it is after assembling on the stressed screw rod 106, and the bottom just in time cooperates valve seat 101, and forms a container cavity with valve seat 101, is used to place the freezing liquid of cooling valve seat.In the present embodiment, freezing liquid preferably adopts liquid nitrogen.Stressed screw rod 106 is provided with first locking nut 107 with stressed box 102 junctions, is used for screwing under the effect of external force, makes valve seat 101 be subjected to outside pulling force by the stressed screw rod 106 that stretches, and the valve seat after freezing 101 is taken out from valve, as shown in Figure 2.
Can an Antileaking plate be set on the opening of valve seat 101, make valve seat remain on sealing state, and pass this Antileaking plate, fixedly connected valve seat and stressed box by stressed screw rod.In the time of on being used in valve seat, can suitably adjust the shape of Antileaking plate with difform opening.
Device of the present utility model is used in the valve seat with V-arrangement opening is example, as shown in Figure 1, can be provided with suitable leg-of-mutton Antileaking plate 103 on this V-arrangement opening, has a hole on this Antileaking plate 103, the stressed screw rod 106 preferred T shape screw rods that adopt, the hole on the Antileaking plate 103 passes in its T shape portion, can be fastened on valve seat 101 backs.Can be provided with second locking nut 105 on the stressed screw rod of T shape, be used for stressed screw rod 106 of T shape and leg-of-mutton Antileaking plate 103 are fixed on valve seat 101, and guarantee that its fit-up gap all seals, liquid nitrogen spills when preventing to use.
In the present embodiment, can opening 108 be set at stressed box 102 sides, this opening can be U-shaped or circle etc., in order to pour into liquid nitrogen in container cavity.The shape of opening 108 also can be other shape.Also can between stressed box 102 and valve seat 101, baffle ring 104 be set, be used for stoping the liquid nitrogen of container cavity to overflow, to guarantee operator safety.
The assemble sequence of the freezing provision for disengagement of present embodiment is:
At first the V-shaped part that stressed screw rod 106 is passed valve seat 101 is put in the valve, and stressed screw rod 106 is rotated 90 degree, makes its T shape portion engaging and stressed on valve seat 101 back;
Reinstall leg-of-mutton Antileaking plate 103, stressed screw rod 106 is passed in hole on the Antileaking plate 103, tightens second locking nut 105 again, and stressed screw rod of T shape and Antileaking plate 103 are fixed on the valve seat 101, and guarantee that its fit-up gap all seals, liquid nitrogen spills when preventing to use;
Check between Antileaking plate 103, valve seat 101 and the stressed screw rod 106 fit clearance and confirm that its sealing is enough good, pass in the valve seat 101 infiltration valves to prevent liquid nitrogen;
Then on stressed screw rod 106, pack into baffle ring 104 and stressed box 102, and tighten first locking nut 107, the U-shaped opening 108 of noting stressed box 102 up, notice that the perfusion liquid level is with U-shaped opening 108 places till.
After installing, utilize the opening part perfusion liquid nitrogen of funnel from stressed box 102, this moment, liquid nitrogen can enter into the container cavity of stressed box 102 and valve seat 101 formation, because the interface on the valve seat 101 all seals, liquid nitrogen can well cool off it.The principle that utilization is expanded with heat and contract with cold after one minute to be cooled, screws first locking nut 107 on the stressed box 102, and container cavity dwindles gradually, and valve seat 101 withdraws from valve gradually, till can taking out, as shown in Figure 2.
The utility model is fixed in stressed screw rod on the valve seat by employing, utilizes the principle of expanding with heat and contract with cold, and with spiral method valve seat is taken out from valve.This device can be realized safely and fast valve seat being dismantled from valve, and implements simple.By repair time of having used this techniques save, reduced maintenance cost.And owing to own design, make, so oneself place under repair at any time and change spare part, the on-the-spot availability of assurance instrument.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (5)
1. the freezing provision for disengagement of a valve seat, be used for valve seat (101) is taken out from valve, it is characterized in that, comprise stressed screw rod (106) and Antileaking plate (103), described Antileaking plate (103) is fixedly installed on the opening of described valve seat (101), one end of described stressed screw rod (106) passes described Antileaking plate (103) and connects described valve seat (101), and the other end connects stressed box (102);
Described stressed box (102) bottom opening forms a container cavity, is used to hold described valve seat (101) and freezing liquid;
Described stressed box (102) side is provided with opening (108), is used for injecting freezing liquid to described container cavity;
Described stressed screw rod (106) is provided with first locking nut (107) with stressed box (102) junction, be used under the effect of external force, screwing, make valve seat (101) be subjected to outside pulling force by the stressed screw rod (106) that stretches, the valve seat after freezing (101) is taken out from valve.
2. freezing provision for disengagement according to claim 1 is characterized in that, described Antileaking plate (103) is a triangle, is used for adaptive valve seat with V-arrangement opening; Described stressed screw rod (106) is a T shape;
Described Antileaking plate (103) passes in the T shape portion of described stressed screw rod (106), is fastened on described valve seat (101) back;
Described stressed screw rod (106) is provided with second locking nut (105), is used for described stressed screw rod (106) is fixed on described valve seat (101).
3. freezing provision for disengagement according to claim 2 is characterized in that, is provided with baffle ring (104) between described stressed box (102) and the described valve seat (101), is used for stoping the freezing liquid of described container cavity to overflow.
4. freezing provision for disengagement according to claim 1 is characterized in that, the opening (108) of described stressed box (102) side is a U-shaped.
5. freezing provision for disengagement according to claim 1 is characterized in that, the opening (108) of described stressed box (102) side is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202057367U CN201511340U (en) | 2009-09-30 | 2009-09-30 | Valve seat freezing dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202057367U CN201511340U (en) | 2009-09-30 | 2009-09-30 | Valve seat freezing dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511340U true CN201511340U (en) | 2010-06-23 |
Family
ID=42482741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202057367U Expired - Lifetime CN201511340U (en) | 2009-09-30 | 2009-09-30 | Valve seat freezing dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511340U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690682A (en) * | 2015-02-12 | 2015-06-10 | 北京市燃气集团有限责任公司 | Valve seat detaching device and manufacturing method thereof |
| CN110977872A (en) * | 2019-12-20 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Valve seat dismounting device and method |
| CN111360749A (en) * | 2020-02-27 | 2020-07-03 | 中船澄西船舶修造有限公司 | Fan blade dismounting tool |
| CN113977232A (en) * | 2021-11-25 | 2022-01-28 | 哈尔滨汽轮机厂有限责任公司 | Method for removing interference valve seat |
-
2009
- 2009-09-30 CN CN2009202057367U patent/CN201511340U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690682A (en) * | 2015-02-12 | 2015-06-10 | 北京市燃气集团有限责任公司 | Valve seat detaching device and manufacturing method thereof |
| CN110977872A (en) * | 2019-12-20 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Valve seat dismounting device and method |
| CN111360749A (en) * | 2020-02-27 | 2020-07-03 | 中船澄西船舶修造有限公司 | Fan blade dismounting tool |
| CN113977232A (en) * | 2021-11-25 | 2022-01-28 | 哈尔滨汽轮机厂有限责任公司 | Method for removing interference valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA GENERAL NUCLEAR GROUP CO., LTD. Free format text: FORMER NAME: CHINA GUANGDONG NUCLEAR POWER GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee after: China General Nuclear Power Corporation Patentee after: Dayawan Nuclear Power Running Management Co., Ltd. Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee before: China Guangdong Nuclear Power Group Co., Ltd. Patentee before: Dayawan Nuclear Power Running Management Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161021 Address after: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee after: China General Nuclear Power Corporation Patentee after: Lingdong Nuclear Power Co., Ltd. Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee before: China General Nuclear Power Corporation Patentee before: Dayawan Nuclear Power Running Management Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |