CN206191048U - Boiler subtracts warm water governing valve - Google Patents
Boiler subtracts warm water governing valve Download PDFInfo
- Publication number
- CN206191048U CN206191048U CN201621267034.8U CN201621267034U CN206191048U CN 206191048 U CN206191048 U CN 206191048U CN 201621267034 U CN201621267034 U CN 201621267034U CN 206191048 U CN206191048 U CN 206191048U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- valve
- valve element
- case
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a boiler subtracts warm water governing valve, the lateral wall of case is opened there is a week groove, and lining up with the case top surface of this groove, the sealing ring is settled at the inslot, the bulge of sealing ring regulating ring stretches into this groove downwards and supports the sealing ring and makes the sealing ring outside and sleeve in close contact with, the sealing ring regulating ring passes through the bolt fastening on the case, the case lower part is the cavity, the balancing hole that has several and cavity to have a perfect understanding is opened to the case top surface, valve rod lower part and case fixed connection, part on the valve rod is located the case is equipped with the key that is used for preventing the commentaries on classics, prevent changeing the gland cover on the valve rod, prevent changeing be equipped with on the gland with aforementioned key assorted keyway, prevent changeing the gland and pass through the bolt fastening on the valve gap. The utility model discloses a graphite seal ring is sealed, and is high temperature resistant, utilizes sealing ring regulating ring press the sealing ring, through the decrement of bolt regulation sealing ring regulating ring to the sealing ring, realizes case and telescopic reasonable sealed, makes the effect reach best sealing.
Description
Technical field：
The utility model is related to regulating valve technical field, more particularly to a kind of boiler Desuperheating water regulating valve.
Background technology：
Boiler desuperheating water working temperature is close to 300 DEG C, and inlet pressure is external more using multilevel decompression regulation close to 20Mpa
Valve or pressure balance type regulating valve, wherein multilevel decompression regulating valve require height to executing agency, especially pneumatic actuator
Necessary thrust output is sufficiently large, otherwise valve element dither can occur, and destroys pipeline, and increasing desuperheating water is used now
Balanced type regulating valve, but balanced type regulating valve is generally imported valve, it is high to be primarily due to temperature, the nonmetallic seal ring material of China
Requirement cannot be met.The many balance accumulation of energy circles using import of current balanced type regulation, the theoretical resistance to highest temperature value of accumulation of energy circle is 313
DEG C, it is impossible in desuperheat water condition long-term use.
The content of the invention：
In consideration of it, being necessary to design a kind of boiler Desuperheating water regulating valve that can overcome disadvantages described above.
A kind of boiler Desuperheating water regulating valve, including：Valve rod, valve element, sleeve, sealing ring, sealing ring adjustment circle, anti-rotation pressure
Lid；Wherein, the side wall of valve element is provided with a circumferential groove, and the groove with valve element top surface insertion, sealing ring is placed in groove, and sealing ring is adjusted
The protuberance of whole circle extends downwardly into the groove and propping up sealing ring makes sealing ring outside be in close contact with sleeve, and sealing ring adjustment circle is logical
Cross and be bolted on valve element, valve element bottom is cavity, valve element top surface is provided with several and cavity insertion balance pipe, stem lower portion
It is fixedly connected with valve element, the part being located on valve element in valve rod is provided with the key for anti-rotation, anti-rotation gland is enclosed within valve rod, is prevented
Turn gland and be provided with the keyway matched with previous key, anti-rotation gland is bolted on bonnet.
Preferably, valve element uses plunger type.
Preferably, sleeve includes upper bush and lower sleeve, and flow regulating orifices are provided with the side wall of lower sleeve.
Preferably, balance hole count is 4~8, and the annular equidistantly arrangement centered on valve rod.
Preferably, valve rod is connected through a screw thread with valve element.
Preferably, through hole is provided with the bolt of fixing seal ring adjustment circle, is connected bolt through above-mentioned through hole with steel wire
Pick up and come and be tensioned with anti-rotation, i.e. bolt looseness.
Preferably, the key on valve rod is flat key.
The utility model is sealed using graphite-seal ring, high temperature resistant, sealing ring is compressed using sealing ring adjustment circle, by spiral shell
Bolt regulation sealing ring adjustment circle realizes the reasonable sealing of valve element and sleeve to the decrement of sealing ring, reaches effect optimal close
Envelope, in valve field maintenance, it is not necessary to dismantle valve element offline, it is thus only necessary to inner hexagon spanner, you can realize field maintenance；
Antirotation keys are housed on valve rod, realization prevents valve core rotation and vibrations.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of the boiler Desuperheating water regulating valve of a width better embodiment.
Accompanying drawing 2 is boiler Desuperheating water regulating valve valve element, the structural representation of valve rod of a width better embodiment.
Accompanying drawing 3 is the close-up schematic view in A portions in accompanying drawing 1.
In figure：Valve rod 1, valve element 2, sleeve 3, sealing ring 4, sealing ring adjustment circle 5, anti-rotation gland 6, bolt 51, cavity 21,
Balance pipe 22, key 11, bonnet 7, upper bush 31, lower sleeve 32, flow regulating orifices 321, steel wire 52.
Specific embodiment：
As shown in accompanying drawing 1~3, a kind of boiler Desuperheating water regulating valve, including：It is valve rod 1, valve element 2, sleeve 3, sealing ring 4, close
Seal ring adjustment circle 5, anti-rotation gland 6；Wherein, the side wall of valve element 2 is provided with a circumferential groove, and the groove with the top surface insertion of valve element 2, sealing
Ring 4 is placed in groove, and sealing ring 4 uses the protuberance of resistant to elevated temperatures graphite-seal ring, sealing ring adjustment circle 5 to extend downwardly into the groove
And propping up sealing ring 4 makes the outside of sealing ring 4 be in close contact with sleeve 3, sealing ring adjustment circle 5 is fixed on valve element 2 by bolt 51
On, the bottom of valve element 2 is cavity 21, and the top surface of valve element 2 is provided with the several and insertion of cavity 21 balance pipe 22, the bottom of valve rod 1 and valve element 2
It is fixedly connected, the part being located on valve element 2 in valve rod 1 is provided with the key 11 for anti-rotation, anti-rotation gland 6 is enclosed within valve rod 1, prevents
Turn gland 6 and be provided with the keyway matched with previous key 11, anti-rotation gland 6 is bolted on bonnet 7.
In the present embodiment, valve element 2 uses plunger type.Sleeve 3 includes upper bush 31 and lower sleeve 32, lower sleeve 32
Flow regulating orifices 321 are provided with the wall of side.The number of balance pipe 22 is 4~8, and the annular equidistantly arrangement centered on valve rod 1.Valve rod
1 is connected through a screw thread with valve element 2.Through hole is provided with the bolt 51 of fixing seal ring adjustment circle 5, is led to through above-mentioned with steel wire 52
Bolt 51 is coupled together and is tensioned with anti-rotation (i.e. bolt 51 loosens) by hole.Key 11 on valve rod 1 is flat key.
Claims (7)
1. a kind of boiler Desuperheating water regulating valve, it is characterised in that including：Valve rod, valve element, sleeve, sealing ring, sealing ring adjustment
Circle, anti-rotation gland；Wherein, the side wall of valve element is provided with a circumferential groove, and the groove with valve element top surface insertion, sealing ring is placed in groove
Interior, the protuberance of sealing ring adjustment circle extends downwardly into the groove and propping up sealing ring makes sealing ring outside be in close contact with sleeve, close
Seal ring adjustment circle is bolted on valve element, and valve element bottom is cavity, and valve element top surface is provided with several flat with cavity insertion
Weighing apparatus hole, stem lower portion is fixedly connected with valve element, and the part being located on valve element in valve rod is provided with the key for anti-rotation, anti-rotation gland
It is enclosed within valve rod, anti-rotation gland is provided with the keyway matched with previous key, anti-rotation gland is bolted on bonnet.
2. boiler Desuperheating water regulating valve as claimed in claim 1, it is characterised in that valve element uses plunger type.
3. boiler Desuperheating water regulating valve as claimed in claim 1, it is characterised in that sleeve includes upper bush and lower sleeve, under
Flow regulating orifices are provided with the side wall of sleeve.
4. boiler Desuperheating water regulating valve as claimed in claim 1, it is characterised in that balance hole count is 4~8, and with valve rod
Centered on annular equidistantly arrangement.
5. boiler Desuperheating water regulating valve as claimed in claim 1, it is characterised in that valve rod is connected through a screw thread with valve element.
6. boiler Desuperheating water regulating valve as claimed in claim 1, it is characterised in that on the bolt of fixing seal ring adjustment circle
Through hole is provided with, bolt connection is got up and is tensioned with anti-rotation through above-mentioned through hole with steel wire.
7. boiler Desuperheating water regulating valve as claimed in claim 1, it is characterised in that the key on valve rod is flat key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267034.8U CN206191048U (en) | 2016-11-24 | 2016-11-24 | Boiler subtracts warm water governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267034.8U CN206191048U (en) | 2016-11-24 | 2016-11-24 | Boiler subtracts warm water governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206191048U true CN206191048U (en) | 2017-05-24 |
Family
ID=58724627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267034.8U Expired - Fee Related CN206191048U (en) | 2016-11-24 | 2016-11-24 | Boiler subtracts warm water governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206191048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200282A (en) * | 2017-07-21 | 2017-09-26 | 鞍钢集团矿业有限公司 | The fixer for mandrel and the cold method for dismounting of heart axle of the cold dismounting of scraper winch |
-
2016
- 2016-11-24 CN CN201621267034.8U patent/CN206191048U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200282A (en) * | 2017-07-21 | 2017-09-26 | 鞍钢集团矿业有限公司 | The fixer for mandrel and the cold method for dismounting of heart axle of the cold dismounting of scraper winch |
| CN107200282B (en) * | 2017-07-21 | 2023-07-21 | 鞍钢集团矿业有限公司 | Mandrel fixing device for cold disassembly of scraper winch and mandrel cold disassembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20191124 |