CN2789517Y - Closed circulating cooled water regulating valve - Google Patents
Closed circulating cooled water regulating valve Download PDFInfo
- Publication number
- CN2789517Y CN2789517Y CN 200520041713 CN200520041713U CN2789517Y CN 2789517 Y CN2789517 Y CN 2789517Y CN 200520041713 CN200520041713 CN 200520041713 CN 200520041713 U CN200520041713 U CN 200520041713U CN 2789517 Y CN2789517 Y CN 2789517Y
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- CN
- China
- Prior art keywords
- valve
- cooling water
- valve body
- utility
- type
- 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
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Abstract
The utility model discloses a cooling water regulating valve of closed circulation, which particularly relates to a cooling water regulating valve, which is widely used for power stations, metallurgy, petrochemical industry and other industrial industries. The utility model provides clean and stable cooling water for various main and auxiliary machines, and safe operation of various main and auxiliary machines can be ensured. The cooling water regulating valve of closed circulation comprises a valve body which is provided with an inlet and an outlet of cooling water and a valve cover which is arranged on the upper part of the valve body. A liquid flow regulating mechanism is arranged in the valve body, wherein the liquid flow regulating mechanism is arranged on a circular cylinder type valve seat in an inlet and an outlet of liquid flow. The utility model comprises a uniform flow cover which is arranged above the valve seat; a valve core is arranged in the uniform flow cover; the top of the valve core is connected with a valve rod which drives the valve core to move up and down, wherein the lower part of the uniform flow cover is evenly distributed with plural rows of pores which are arranged in the gradually increased sequence. The utility model can be conducted with voltage reduction through throttling; the uniform flow cover is conducted with allocation and voltage reduction step by step, and operation is very steady. Because of a special structure of the valve core, abrasive opportunities can be reduced and the service life can be long.
Description
Technical field
The closed-type circulating cooling water modulating valve relates to a kind of cooling sea water regulating valve, be widely used in industrial trades such as power station, metallurgy, petrochemical industry, for all kinds of main auxiliary machines provide clean, stable cooling water, to control all kinds of main and submachine cooling mediums, make bearing temperature control within the specific limits, guarantee all kinds of main auxiliary machine safe and reliable operations, as air-cooler, hydrogen cooler, oil cooler and other all kinds of subsidiary engine bearings provide cooling water inflow.Then opening big regulating valve as the temperature height increases water output, and temperature is crossed to hang down and then reduced cooling water inflow, guarantees that all kinds of main auxiliary machines normally move.
Technical background
The present closed-type circulating cooling water modulating valve that uses, because material therefor and structure is different, the performance difference of product is very big, and subject matter is: throttling progression is not enough, causes pressure drop not reach the optimum state, and cavitation appears, damage adjusting part, occur leaking, and noise occurs, working life is short, increases operating cost.And unreasonable structure, waste material increases maintenance cost.
Summary of the invention
The utility model purpose is to provide a kind of protection against erosion, and is wear-resistant, and noise is low, leaks little, rational in infrastructure closed-type circulating cooling water modulating valve.
For achieving the above object, the technological scheme that is adopted is a kind of closed-type circulating cooling water modulating valve, comprise the valve body that is provided with cooling water outlet and inlet and be installed in the valve gap on valve body top, be provided with liquid stream controlling mechanism in the valve body, wherein, described liquid stream controlling mechanism is located on the interior garden cartridge type valve seat of liquid flow inlet and outlet, comprise: the current-sharing cover that is located at the valve seat top, be provided with spool in the current-sharing cover, the valve rod that spool top connecting band movable valve plug moves up and down, in addition, uniform many rounds crack, described current-sharing cover bottom, and by little extremely big the arrangement.Principle of the present utility model is: the closed-type circulating cooling water modulating valve adopts and shrouds the throttling of formula formation, moves up and down the passage section that changes throttling element by spool, realizes the adjusting of flow.Because the utility model adopts the current-sharing cover of porous, make the logical amplification step by step of pressure difference energy and steadily step-down, the generation of flash distillation that reduces to vaporize, thus it is little to reach cavitation, and noise is low, long service life.
On the such scheme basis, be fluted body in the middle of the described spool.Reduce wear, guarantee that clearance flow is constant for a long time.And, reduced the valve unbalanced force by current-sharing cover realization pressure balancing structure, reduced the driving moment of actuator, energy saving.
Each parts of the utility model are formed by connecting through link, adopt simple and easy assembling to get final product to each parts in the valve, make the valve easy accessibility, and are easy to maintenance.
On the such scheme basis, described valve body is imported and exported and is straight-through type.
The utility model compared with prior art has obvious advantage, and its throttling step-down distributes step-down step by step by shrouding, and makes operation very steady, and because the special tectonic of spool greatly reduces abrading machine meeting, long service life.
Describe concrete structure of the present utility model and feature in detail below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing 1 is the structural profile schematic representation of the utility model closed-type circulating cooling water modulating valve.
Embodiment
Shown in the structural profile schematic representation of accompanying drawing the utility model closed-type circulating cooling water modulating valve, a kind of closed-type circulating cooling water modulating valve of the utility model, comprise and be provided with cooling water outlet and inlet 3,3 ' valve body 1 and be installed in the valve gap 2 on valve body 1 top, wherein, valve body 1 is provided with straight-through type and imports and exports 3,3 ', 2 of valve body 1 and valve gaps are established a valve gap packing ring 8, be provided with liquid stream controlling mechanism in the valve body 1, described liquid stream controlling mechanism is located at liquid flow inlet and outlet 3, on the garden cartridge type valve seat 4 in 3 ', comprise: the porous current-sharing cover 5 that is located at valve seat 4 tops, be provided with spool 6 in the current-sharing cover 5, the valve rod 7 that spool 6 top connecting band movable valve plugs move up and down, wherein, uniform many rounds crack, described current-sharing cover 5 bottoms 51, and by little extremely big the arrangement.Be provided with groove shaped spool 6 in the current-sharing cover 5, spool 6 tops are provided with the valve rod 7 that spool 6 is moved up and down.Valve seat 4 belows are provided with valve washer 9.Import and export 3,3 ' on the valve body 1 are straight-through type.
The utility model adopts porous and ascending arrangement current-sharing cover according to handling characteristics, makes pressure reduction distribute throttling step by step, prevents the generation of erosion, and the groove shaped design at spool middle part, and the chance that reduces wear increases the service life.Guarantee the normal operation of main auxiliary machine, its working principle is the 24VDC signal of being sent here by regulator, amplifies rear driving actuator through servoamplifier and drives the spool action.
Claims (4)
1. closed-type circulating cooling water modulating valve, comprise the valve gap (2) that is provided with the cooling water outlet and inlet valve body of (3,3 ') (1) and is installed in valve body (1) top, be provided with liquid stream controlling mechanism in the valve body, it is characterized in that described liquid stream controlling mechanism is located on the interior garden cartridge type valve seat (4) of liquid flow inlet and outlet (3,3 '), comprise: the current-sharing cover (5) that is located at valve seat (4) top, be provided with spool (6) in the current-sharing cover, the valve rod (7) that spool (6) top connecting band movable valve plug moves up and down, wherein, uniform many rounds crack, described current-sharing cover (5) bottom, and by little extremely big the arrangement.
2. closed-type circulating cooling water modulating valve according to claim 1 is characterized in that spool (6) middle part is groove type (61).
3. closed-type circulating cooling water modulating valve according to claim 1 and 2 is characterized in that the import and export (3,3 ') of valve body 1 are the straight-through type linkage structure.
4. closed-type circulating cooling water modulating valve according to claim 1 and 2 is characterized in that described valve arrangement is split type, and each parts connects through link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041713 CN2789517Y (en) | 2005-05-20 | 2005-05-20 | Closed circulating cooled water regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041713 CN2789517Y (en) | 2005-05-20 | 2005-05-20 | Closed circulating cooled water regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789517Y true CN2789517Y (en) | 2006-06-21 |
Family
ID=36789848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041713 Expired - Fee Related CN2789517Y (en) | 2005-05-20 | 2005-05-20 | Closed circulating cooled water regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789517Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807455A (en) * | 2014-02-19 | 2014-05-21 | 哈电集团哈尔滨电站阀门有限公司 | Combined throttling pair-type regulating valve |
| CN104629813A (en) * | 2015-01-28 | 2015-05-20 | 宝钢集团新疆八一钢铁有限公司 | Hydraulic quickly-opened coal gas diffusing device for gasifying furnace |
| CN105443779A (en) * | 2016-01-14 | 2016-03-30 | 中国船舶重工集团公司第七�三研究所 | Valve quiescent-flow element of marine steam turbine |
| CN105736711A (en) * | 2016-04-18 | 2016-07-06 | 兰州兰石集团有限公司 | Novel external control type hydraulic circulating valve |
| CN106763834A (en) * | 2017-03-24 | 2017-05-31 | 徐传堂 | A kind of minimum flow valve |
-
2005
- 2005-05-20 CN CN 200520041713 patent/CN2789517Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807455A (en) * | 2014-02-19 | 2014-05-21 | 哈电集团哈尔滨电站阀门有限公司 | Combined throttling pair-type regulating valve |
| CN104629813A (en) * | 2015-01-28 | 2015-05-20 | 宝钢集团新疆八一钢铁有限公司 | Hydraulic quickly-opened coal gas diffusing device for gasifying furnace |
| CN105443779A (en) * | 2016-01-14 | 2016-03-30 | 中国船舶重工集团公司第七�三研究所 | Valve quiescent-flow element of marine steam turbine |
| CN105736711A (en) * | 2016-04-18 | 2016-07-06 | 兰州兰石集团有限公司 | Novel external control type hydraulic circulating valve |
| CN106763834A (en) * | 2017-03-24 | 2017-05-31 | 徐传堂 | A kind of minimum flow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 |