CN204300450U - A kind of steam converter valve - Google Patents
A kind of steam converter valve Download PDFInfo
- Publication number
- CN204300450U CN204300450U CN201420811056.0U CN201420811056U CN204300450U CN 204300450 U CN204300450 U CN 204300450U CN 201420811056 U CN201420811056 U CN 201420811056U CN 204300450 U CN204300450 U CN 204300450U
- Authority
- CN
- China
- Prior art keywords
- steam
- secondary flap
- valve
- main valve
- clack
- 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.)
- Active
Links
Landscapes
- Lift Valve (AREA)
Abstract
This application discloses a kind of steam converter valve, comprising: valve body, in described valve body, be provided with steam channel; Be connected to the main valve clack on described valve body and mixing duct; The secondary flap be connected with described main valve clack and secondary flap valve seat; The injecting-unit be connected with described mixing duct; Wherein, described main valve clack is provided with passage, described main valve clack can change the quantity of the passage being arranged in described steam channel in moving process, and described secondary flap can change the area of the described steam channel between described secondary flap and described secondary flap valve seat in moving process, described mixing duct is used for mixed vapour and desuperheating water, and described injecting-unit is for spraying described steam and desuperheating water.The steam converter valve that the application provides can reduce the energy consumption of the open operation of valve, reduces the cost of open operation.
Description
Technical field
The utility model relates to steam turbine technology field, particularly relates to a kind of steam converter valve.
Background technology
The unit in thermal power plant, when carrying out sliding parameter start and stop, can utilize the bypath system of steam turbine, regulates the steam parameter of unit when not blowing out.Wherein, one of core component of bypath system is exactly steam converter valve, it achieves and has not only reduced pressure but also desuperheat to steam in same device, improve operating efficiency.But steam converter valve of the prior art only has a main valve clack, the passage had by main valve clack realizes the decompression to steam.In valve opening process, because the two ends of main valve clack exist larger pressure reduction, and this pressure reduction can only be balanced by the passage on main valve clack, this equilibrium process is very slow, external force is needed to act on the long period on main valve clack, therefore this open operation needs acting more, so just brings the problem that energy consumption is large, cost is high.
Utility model content
For solving the problem, the utility model provides a kind of steam converter valve, can reduce the energy consumption of the open operation of valve, reduces the cost of open operation.
A kind of steam converter valve that the utility model provides, comprising:
Valve body, is provided with steam channel in described valve body;
Be connected to the main valve clack on described valve body and mixing duct;
The secondary flap be connected with described main valve clack and secondary flap valve seat;
The injecting-unit be connected with described mixing duct;
Wherein, described main valve clack is provided with passage, described main valve clack can change the quantity of the passage being arranged in described steam channel in moving process, and described secondary flap can change the area of the described steam channel between described secondary flap and described secondary flap valve seat in moving process, described mixing duct is used for mixed vapour and desuperheating water, and described injecting-unit is for spraying described steam and desuperheating water.
Preferably, in above-mentioned steam converter valve, be provided with two-stage throttling guard in described steam channel, described two-stage throttling guard is connected with described valve body lower portion.
Preferably, in above-mentioned steam converter valve, described main valve clack and described secondary flap are heat-resisting alloy.
Preferably, in above-mentioned steam converter valve, described main valve clack and described secondary flap have the surface through cure process.
Preferably, in above-mentioned steam converter valve, described main valve clack is provided with guiding parts.
Preferably, in above-mentioned steam converter valve, described guiding parts is three guide rings adding antimony admant ink.
Preferably, in above-mentioned steam converter valve, between described main valve clack and described secondary flap, be provided with anti-rotation member.
Preferably, in above-mentioned steam converter valve, the sealing surface of described valve body adopts STL hard alloy overlay welding.
Preferably, in above-mentioned steam converter valve, described injecting-unit is three spring atomization adjustable nozzles.
Preferably, in above-mentioned steam converter valve, described valve body and described main valve clack are dismountable connection, and described secondary flap, described secondary flap base are dismountable connection with described main valve clack.
In the utility model, described main valve clack can change the quantity of the passage being arranged in described steam channel in moving process, thus described main valve clack just can realize the decompression to steam; Described secondary flap can change the area of the described steam channel between described secondary flap and described secondary flap valve seat in moving process, thus described secondary flap also can realize the decompression to steam; Just because of steam converter valve provided by the utility model, there is major-minor valve flap structure, therefore in the process of valve opening, first open described secondary flap, the area of the described steam channel formed between described secondary flap and described secondary flap valve seat is much larger than the passage area of described main valve clack, the balance of pressure can be realized soon, by the time after pressure equilibrium, and then open described main valve clack, so just can effectively reduce the energy consumption of valve opening operation, reduce the cost of open operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The schematic diagram of a kind of steam converter valve that Fig. 1 provides for the embodiment of the present application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of steam converter valve that the embodiment of the present application provides as shown in Figure 1, the schematic diagram of a kind of steam converter valve that Fig. 1 provides for the embodiment of the present application.This steam converter valve comprises:
Valve body 4, is provided with steam channel in described valve body 4;
Be connected to the main valve clack 5 on described valve body 4 and mixing duct 1;
The secondary flap 7 be connected with described main valve clack 5 and secondary flap valve seat 6;
The injecting-unit 8 be connected with described mixing duct 1;
Wherein, described main valve clack 5 is provided with passage, described main valve clack 5 can change the quantity of the passage being arranged in described steam channel in moving process, and described secondary flap 7 can change the area of the described steam channel between described secondary flap 7 and described secondary flap valve seat 6 in moving process, described mixing duct 1 is for mixed vapour and desuperheating water, and described injecting-unit 8 is for spraying described steam and desuperheating water.
Utilize steam converter valve as above, described main valve clack 5 can change the quantity of the passage being arranged in described steam channel in moving process, thus main valve clack 5 just can realize the decompression to steam, and the quantity of the passage of described main valve clack 5 and size all can be set to different size, to adapt to the requirement of different operating mode; Described secondary flap 7 can change the area of the described steam channel between described secondary flap 7 and described secondary flap valve seat 6 in moving process, thus secondary flap 7 also can realize the decompression to steam; Utilize injecting-unit 8 described in described mixing duct 1 to realize steam attemperation, finally make steam parameter meet the requirements.This steam converter valve has major-minor valve flap structure just, therefore in the process of valve opening, can first open auxiliary flap 7, the area of the steam channel formed between described secondary flap 7 and described secondary flap valve seat 6 is much larger than the passage area of described main valve clack 5, the balance of pressure can be realized soon, by the time after pressure equilibrium, and then open main valve clack 5, so just can effectively reduce the energy consumption of valve opening operation, reduce the cost of open operation.
In above-mentioned steam converter valve, preferably can be provided with two-stage throttling guard 2 and 3 in described steam channel, described two-stage throttling guard 2 is connected with the bottom of described valve body 4 with 3.This two-stage throttling guard 2 and 3 can reduce pressure to gas, effectively avoid the impact of gas to valve body 4, this two-stage throttling guard 2 and 3 is also provided with aperture, effectively can control the exit velocity of steam, thus minimizing noise, decrease the risk of gas attack.
In above-mentioned steam converter valve, described main valve clack 5 and described secondary flap 7 can be preferably heat-resisting alloy, this makes it possible to improve heat resistanceheat resistant stinging property, make described main valve clack 5 and described secondary flap 7 more durable, reliability is high.
In above-mentioned steam converter valve, described main valve clack 5 and described secondary flap 7 have the surface through cure process, so just can better improve its reliability.
In above-mentioned steam converter valve, described main valve clack 5 is preferably provided with guiding parts, and this guiding parts preferably can comprise the guide ring that three roads add antimony admant ink, so just can play the effect of balance and sealing, can play again the effect of damping.
In above-mentioned steam converter valve, preferably anti-rotation member can be provided with between described main valve clack 5 and described secondary flap 7, this makes it possible to avoid described main valve clack 5 and described secondary flap 7 to rotate under high steam effect, thus better ensure the normal operation of steam converter valve.
In above-mentioned steam converter valve, the sealing surface of described valve body 4 adopts STL hard alloy overlay welding, so just can better ensure the sealing property under steam converter valve in off position, realize zero leakage.It should be noted that, the epicoele sealing of described valve body 4 is realized by self sealing structure, and pressure is higher, seal more reliable, and the sealing of described secondary flap 7 is realized by filler chamber.
In above-mentioned steam converter valve, described injecting-unit 8 can be preferably three spring atomization adjustable nozzles.Desuperheating water sprays into spin chamber from becoming multiple water spray apertures of Spiral distribution, through multiple impacts, by spring automatic regulating valve core aperture, keep constant jet velocity, final under the guide effect of shower nozzle eddy flow, with the vaporific moisture film ejection of umbrella, converge with the high velocity vapor flowed out in described throttling guard 2 and 3, achieve steam attemperation.It should be noted that, different according to attemperation water flow, spring atomization adjustable nozzle can be arranged to different quantity and specification.
In above-mentioned steam converter valve, described valve body 4 can be preferably dismountable connection with described main valve clack 5, and described secondary flap 7, described secondary flap base 6 also can be preferably dismountable connection with described main valve clack 5.So just can easily dismantle consumable accessory and assemble, offer convenience to on-site maintenance.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a steam converter valve, is characterized in that, comprising:
Valve body, is provided with steam channel in described valve body;
Be connected to the main valve clack on described valve body and mixing duct;
The secondary flap be connected with described main valve clack and secondary flap valve seat;
The injecting-unit be connected with described mixing duct;
Wherein, described main valve clack is provided with passage, described main valve clack can change the quantity of the passage being arranged in described steam channel in moving process, and described secondary flap can change the area of the described steam channel between described secondary flap and described secondary flap valve seat in moving process, described mixing duct is used for mixed vapour and desuperheating water, and described injecting-unit is for spraying described steam and desuperheating water.
2. steam converter valve according to claim 1, is characterized in that, is provided with two-stage throttling guard in described steam channel, and described two-stage throttling guard is connected with described valve body lower portion.
3. steam converter valve according to claim 1, is characterized in that, described main valve clack and described secondary flap are heat-resisting alloy.
4. steam converter valve according to claim 3, is characterized in that, described main valve clack and described secondary flap have the surface through cure process.
5. steam converter valve according to claim 1, is characterized in that, described main valve clack is provided with guiding parts.
6. steam converter valve according to claim 5, is characterized in that, described guiding parts is three guide rings adding antimony admant ink.
7. steam converter valve according to claim 1, is characterized in that, is provided with anti-rotation member between described main valve clack and described secondary flap.
8. the steam converter valve according to any one of claim 1-7, is characterized in that, the sealing surface of described valve body adopts STL hard alloy overlay welding.
9. steam converter valve according to claim 8, is characterized in that, described injecting-unit is three spring atomization adjustable nozzles.
10. steam converter valve according to claim 8, is characterized in that, described valve body and described main valve clack are dismountable connection, and described secondary flap, described secondary flap base are dismountable connection with described main valve clack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811056.0U CN204300450U (en) | 2014-12-17 | 2014-12-17 | A kind of steam converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811056.0U CN204300450U (en) | 2014-12-17 | 2014-12-17 | A kind of steam converter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300450U true CN204300450U (en) | 2015-04-29 |
Family
ID=53105991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420811056.0U Active CN204300450U (en) | 2014-12-17 | 2014-12-17 | A kind of steam converter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455607A (en) * | 2014-12-17 | 2015-03-25 | 杭州华惠阀门有限公司 | Temperature and pressure reducing valve |
-
2014
- 2014-12-17 CN CN201420811056.0U patent/CN204300450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455607A (en) * | 2014-12-17 | 2015-03-25 | 杭州华惠阀门有限公司 | Temperature and pressure reducing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120186261A1 (en) | System and method for a gas turbine exhaust diffuser | |
| CN201162945Y (en) | Attemperation and pressure reducing device | |
| TW200716896A (en) | Diffuser of flow control valve and flow control valve | |
| CN201818868U (en) | High-temperature and high-pressure temperature and pressure relief valve | |
| CN102589075A (en) | Humidifier | |
| CN104455607A (en) | Temperature and pressure reducing valve | |
| CN101907290A (en) | Overall regulation and water spraying atomization steam temperature reducing device | |
| CN203131911U (en) | Range hood and heat cleaning system for same | |
| CN204300450U (en) | A kind of steam converter valve | |
| JP6427815B2 (en) | Overheat reduction device and overheat reduction method | |
| CN202598751U (en) | Humidifier | |
| CN210145368U (en) | Spiral-flow type fire-fighting lance | |
| CN103090362A (en) | Automatic adjustment nozzle and method | |
| CN104534105A (en) | Integrated steam exhaust temperature reduction pressurizer | |
| CN203797078U (en) | Integrated pressure and temperature reducing valve | |
| CN203264894U (en) | Nozzle structure of sound-speed-variable temperature-reduction pressure-reduction capacity-increasing device | |
| CN101440887A (en) | Pressure and temperature reducing valve | |
| CN205119046U (en) | Swirl pulverized coal burner | |
| CN101832730B (en) | Atomizer structure with water pressure fluctuation automatic flow regulation | |
| CN204187604U (en) | Ball nozzle attemperator | |
| CN107255181A (en) | Steam support type steam converter valve | |
| CN205084920U (en) | Atomizing nozzle type desuperrheater with adjustable | |
| CN103263982A (en) | Nozzle structure of temperature and pressure reducing and capacity increasing device with variable sound speed | |
| CN209115774U (en) | Control switch valve for gas channel of gas water heater | |
| US20110297867A1 (en) | Flow guided valve seat for steam turbine valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |