CN204533548U - A kind of improved type closed circulating cooled water regulating valve - Google Patents
A kind of improved type closed circulating cooled water regulating valve Download PDFInfo
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- CN204533548U CN204533548U CN201520095910.2U CN201520095910U CN204533548U CN 204533548 U CN204533548 U CN 204533548U CN 201520095910 U CN201520095910 U CN 201520095910U CN 204533548 U CN204533548 U CN 204533548U
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Abstract
A kind of improved type closed circulating cooled water regulating valve disclosed in the utility model, comprising: a valve body, has a valve pocket in valve body; One valve gap being fixedly installed on body top; One is arranged on the valve seat in valve pocket; The one current-sharing cover being positioned at valve pocket, the upper and lower end of current-sharing cover is against on valve gap and valve seat respectively, and current-sharing cover offers pod apertures; One is positioned at current-sharing cover and the spool that can slide along current-sharing cover axial reciprocating, is provided with an annular groove in the middle part of the periphery wall of spool; And a valve rod, the upper end of valve rod drives with driver part and is connected, and its lower end is connected with spool to downward-extension through after valve gap; The upper and lower that the periphery wall of spool is positioned at described annular groove is respectively arranged with upper and lower guide ring.The beneficial effects of the utility model are: effectively improve the sealability between spool and current-sharing cover, prevent cooling water leakage, also play spool slide-and-guide simultaneously, reduce the effect of frictional force, noise reduction.
Description
Technical field
The utility model relates to regulating valve, particularly relates to a kind of improved type closed circulating cooled water regulating valve.
Background technique
Closed circulating cooled water regulating valve belongs to the visual plant in the industry heat power equipments such as electric power, oil, chemical industry or system automation field, for all kinds of main auxiliary machine provides clean, stable cooling water, to control all kinds of main auxiliary machine cooling medium, bearing temperature is controlled within the specific limits, guarantee all kinds of main auxiliary machine safe and reliable operation, as air-cooler, hydrogen cooler, oil cooler and other all kinds of main auxiliary machine bearing provide cooling water inflow.If all kinds of main auxiliary machine Bearing Temperature, then open large closed circulating cooled water regulating valve, increase water output, if but all kinds of main auxiliary machine bearing temperature is too low, then reduce the open amount of closed circulating cooled water regulating valve, to reduce cooling water inflow, ensure that all kinds of main auxiliary machine normally works.
At present, closed circulating cooled water regulating valve working environment rather harsh, be in that High Pressure Difference is large for a long time, run under large discharge, the large temperature difference and throttle, cause valve body adjusting function to be deteriorated, generation leakage phenomenon, makes systematic parameter cannot ensure normal operation.In addition due to the difference of its material therefor and structure, its performance difference is very large.The complex structure of the closed circulating cooled water regulating valve sold in the market, poor sealing performance, working life are short, make Consumer quite dissatisfied to this kind valve body.Given this, related domain is in the urgent need to improving current closed circulating cooled water regulating valve.
Model utility content
Technical problem to be solved in the utility model: provide for the deficiencies in the prior art that a kind of structure is simple, good seal performance, soundproof effect are good, the improved type closed circulating cooled water regulating valve of long service life.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of improved type closed circulating cooled water regulating valve, comprising:
One valve body, the both sides of described valve body are respectively arranged with water inlet flow channel and outlet passage, have the valve pocket of the described water inlet flow channel of a connection and outlet passage in described valve body;
One valve gap being fixedly installed on described body top;
One is arranged on the valve seat in described valve pocket;
The one current-sharing cover being positioned at described valve pocket, the upper and lower end of described current-sharing cover is against on described valve gap and valve seat respectively, and described current-sharing cover offers pod apertures;
One is positioned at described current-sharing cover and the spool that can slide along described current-sharing cover axial reciprocating, is formed to seal to contact between the periphery wall of described spool and the inner circle wall of current-sharing cover, is provided with an annular groove in the middle part of the periphery wall of described spool; And
One valve rod, the upper end of described valve rod drives with driver part and is connected, and its lower end is connected with the spool being positioned at current-sharing cover to downward-extension through after described valve gap;
The upper and lower that the periphery wall of described spool is positioned at described annular groove is respectively arranged with upper and lower guide ring, when spool is in minimum aperture, pod apertures on described current-sharing cover is between described upper and lower guide ring, when spool is in maximum opening, the pod apertures on described current-sharing cover is positioned at the below of described lower guide ring.
In a preferred embodiment of the present utility model, described upper and lower guide ring is tetrafluoro guide ring.
In a preferred embodiment of the present utility model, the periphery wall of the inwall of described valve pocket, the inwall of water inlet flow channel, the inwall of outlet passage and current-sharing cover is coated with a nitride layer.
In a preferred embodiment of the present utility model, the thickness of described nitride layer is 5 ~ 15 μm.
Owing to have employed technological scheme as above, the beneficial effects of the utility model are: the upper and lower being positioned at annular groove on the periphery wall of spool is respectively arranged with upper and lower guide ring, effectively improve the sealability between spool and current-sharing cover, prevent cooling water leakage, also play spool slide-and-guide simultaneously, reduce the effect of frictional force, noise reduction.In addition, the periphery wall of the inwall of valve pocket, the inwall of water inlet flow channel, the inwall of outlet passage and current-sharing cover is coated with a nitride layer, improves the erosive wear resistance of valve body, make extend 2 ~ 3 times the working life of valve body, and nitrogenation treatment technology is maturation process, its cost is lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is structural representation of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See a kind of improved type closed circulating cooled water regulating valve provided in Fig. 1, figure, comprise valve body 100, valve gap 200, valve seat 300, current-sharing cover 400, spool 500 and valve rod 600.
The both sides of valve body 100 are respectively arranged with water inlet flow channel 110 and outlet passage 120, and the axis of the axis of the water intake 111 of water inlet flow channel 110 and the water outlet 121 of outlet passage 120 is on same straight line 150.Have the valve pocket 130 of a connection water inlet flow channel 110 and outlet passage 120 in valve body 100, the bottom of valve pocket 130 is provided with a valve seat and installs shoulder hole 140.
Valve gap 200 adopts bolt 210 to be removably mounted on the top of valve body 100, is provided with valve gap packing ring 220 between the lower end surface of valve gap 200 and the end face of valve body 100, improves the sealability between valve gap 200 and valve body 100.
The valve seat that valve seat 300 is arranged on bottom the valve pocket 130 in valve body 100 is installed in shoulder hole 140, installs between shoulder hole 140 be provided with valve washer 310 at valve seat 300 and valve seat, and raising valve seat 300 and valve seat install the sealability between shoulder hole 140.
Current-sharing cover 400 is a barrel shape structure, is arranged in the valve pocket 130 of valve body 100, and the upper and lower end 410,420 of current-sharing cover 400 is against on valve gap 200 and valve seat 300 respectively.Current-sharing cover 400 offers pod apertures 430, the design of pod apertures 430 significantly reduces noise.
Spool 500 is positioned at current-sharing cover 400.The upper end 610 of valve rod 600 drives with driver part (not shown) and is connected, and its lower end 620 extends down in current-sharing cover 400 through after valve gap 200, and affixed with the spool 500 being positioned at current-sharing cover 400.Driver part band ovable valve stem 600 moves up and down, and valve rod 600 slides with the axial reciprocating of movable valve plug 500 along current-sharing cover 400, reaches regulating and controlling valve and leads to the object of closing.
Be provided with an annular groove 510 in the middle part of the periphery wall of spool 500, it can ensure that clearance flow is constant for a long time, and realizes pressure balance by current-sharing cover 400, reduces the unbalanced force of spool 500, decreases the driving moment of driver part, energy saving.The upper and lower that the periphery wall of spool 500 is positioned at annular groove 510 is respectively arranged with upper and lower guide ring and installs groove 520,530, upper and lower guide ring is installed in groove 520,530 and is embedded with upper and lower guide ring 710,720 respectively, in the present embodiment, upper and lower guide ring 710,720 is preferably tetrafluoro guide ring.When spool 500 is in minimum aperture and modulating valve is cut out, the pod apertures 430 on current-sharing cover 400 is between upper and lower guide ring 710,720; When spool 500 is in maximum opening and modulating valve opens completely, the pod apertures 430 on current-sharing cover 400 is positioned at the below of lower guide ring 720.The design of upper and lower guide ring 710,720 improves the sealability between spool and current-sharing cover effectively, prevents cooling water leakage, also plays spool slide-and-guide simultaneously, reduces the effect of frictional force, noise reduction.
In addition, the periphery wall of the inwall of valve pocket 130, the inwall of water inlet flow channel 110, the inwall of outlet passage 120 and current-sharing cover 400 is coated with a nitride layer, the thickness of this nitride layer is 5 ~ 15 μm, effectively improve the erosive wear resistance of valve body, make extend 2 ~ 3 times the working life of valve body, and nitrogenation treatment technology is maturation process, its cost is lower.
Claims (4)
1. an improved type closed circulating cooled water regulating valve, comprising:
One valve body, the both sides of described valve body are respectively arranged with water inlet flow channel and outlet passage, have the valve pocket of the described water inlet flow channel of a connection and outlet passage in described valve body;
One valve gap being fixedly installed on described body top;
One is arranged on the valve seat in described valve pocket;
The one current-sharing cover being positioned at described valve pocket, the upper and lower end of described current-sharing cover is against on described valve gap and valve seat respectively, and described current-sharing cover offers pod apertures;
One is positioned at described current-sharing cover and the spool that can slide along described current-sharing cover axial reciprocating, is formed to seal to contact between the periphery wall of described spool and the inner circle wall of current-sharing cover, is provided with an annular groove in the middle part of the periphery wall of described spool; And
One valve rod, the upper end of described valve rod drives with driver part and is connected, and its lower end is connected with the spool being positioned at current-sharing cover to downward-extension through after described valve gap; It is characterized in that,
The upper and lower that the periphery wall of described spool is positioned at described annular groove is respectively arranged with upper and lower guide ring, when spool is in minimum aperture, pod apertures on described current-sharing cover is between described upper and lower guide ring, when spool is in maximum opening, the pod apertures on described current-sharing cover is positioned at the below of described lower guide ring.
2. improved type closed circulating cooled water regulating valve as claimed in claim 1, it is characterized in that, described upper and lower guide ring is tetrafluoro guide ring.
3. improved type closed circulating cooled water regulating valve as claimed in claim 2, is characterized in that, the periphery wall of the inwall of described valve pocket, the inwall of water inlet flow channel, the inwall of outlet passage and current-sharing cover is coated with a nitride layer.
4. improved type closed circulating cooled water regulating valve as claimed in claim 3, it is characterized in that, the thickness of described nitride layer is 5 ~ 15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095910.2U CN204533548U (en) | 2015-02-10 | 2015-02-10 | A kind of improved type closed circulating cooled water regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095910.2U CN204533548U (en) | 2015-02-10 | 2015-02-10 | A kind of improved type closed circulating cooled water regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533548U true CN204533548U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520095910.2U Active CN204533548U (en) | 2015-02-10 | 2015-02-10 | A kind of improved type closed circulating cooled water regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533548U (en) |
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2015
- 2015-02-10 CN CN201520095910.2U patent/CN204533548U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |