CN203115148U - High-voltage power station sluice valve - Google Patents
High-voltage power station sluice valve Download PDFInfo
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- CN203115148U CN203115148U CN 201320029431 CN201320029431U CN203115148U CN 203115148 U CN203115148 U CN 203115148U CN 201320029431 CN201320029431 CN 201320029431 CN 201320029431 U CN201320029431 U CN 201320029431U CN 203115148 U CN203115148 U CN 203115148U
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- valve
- flashboard
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- power station
- voltage power
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Abstract
The utility model discloses a high-voltage power station sluice valve. The high-voltage power station sluice valve is provided with a valve seat. A left valve channel and a right valve channel which are respectively connected with a pipeline are arranged on the valve seat. A through hole is formed in the upper end in the middle position between the left valve channel and the right valve channel. The high-voltage power station sluice valve further comprises a valve rod which is connected with a flashboard. The flashboard is embedded in the through hole. A rotating plate is used for driving the valve rod to control the flashboard to open and close the pipeline. According to the technical scheme, the high-voltage power station sluice valve has the advantages of being capable of saving cost, reducing use of raw materials, and good in compression resistant, corrosion resistant and wear resistant performance. According to an optimized technical scheme, the rotating plate is controlled manually or by a motor-driven device, the motor-driven device is respectively provided with a specially-used motor, a speed reducer, a torque control mechanism, a spot operation mechanism and a manual or electrical switching mechanism, and remote operation can further be conducted besides on-site operation.
Description
Technical field
The utility model relates to a kind of gate valve, and high pressure resistant in particular in power station or the chemical industry has wear resistance, a kind of high voltage generating station gate valve that antifraying property is good.
Background technique
Gate valve is to use comparatively common a kind of valve in pipeline, and in the power station, especially cogeneration power plant and petroleum chemical industry need use gate valve to connect or block flowing of medium under high-temperature and high-pressure conditions.
In Chinese patent literature CN1217441A, a kind of gate valve is disclosed, as shown in Figure 1, the technological scheme that adopts is, this gate valve has valve body, flashboard, valve seat, valve rod, filler and Gland, the valve seat of structural ceramics or special cermacis is with the valve body taper fit, be provided with in the valve body with valve seat contact and with the valve seat clamp sleeve of valve seat location, valve seat orifice isostructure pottery in the valve seat or the flashboard taper fit of special cermacis, this flashboard connects with the valve rod bearing pin, and the left valve channel and the right valve channel that then are located at together on the valve body of valve seat orifice are linked up.
Because gate valve will be subjected to the washing away of high temperature and high pressure flow body medium in the pipeline, wearing and tearing and cavitation, loss for the sealing surface of valve plate and even whole gate valve is very big, but the gate valve in the above-mentioned patent documentation can't overcome this defective, and after long-time the use, sealability descends.
The model utility content
The technical problems to be solved in the utility model provides a kind of saving cost, reduces raw material and uses, and resistance to compression and corrosion resistance are good, wear-resisting high voltage generating station gate valve.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of high voltage generating station gate valve, has valve seat, described valve seat is provided with left valve channel and the right valve channel that is connected with pipeline respectively, the upper end, place has through hole in the middle of described left valve channel and the right valve channel, also include the valve rod that connects flashboard, described flashboard is embedded in the through hole, opens and closes pipeline thereby drive valve rod control flashboard by rotating disc.
Adopt the high voltage generating station gate valve of technique scheme, because the upper end, place has through hole in the middle of left valve channel and the right valve channel, thereby form an I shape inner chamber, being convenient to valve plate is embedded in the through hole, guaranteed the seal of valve plate, simultaneously, thereby drive valve rod control flashboard by rotating disc and open and close pipeline, can the easy-to-operat personnel observe flashboard and whether arrived the bottom, make the front cover of flashboard be difficult for scratch, the gate valve structure in this technological scheme is succinct simultaneously, has reduced raw-material use, compression resistance is good, and is wear-resisting.
As further improvement of the utility model, the sealing surface of valve seat adopts the cobalt base hard alloy plasma spray to form, and has further strengthened the wear-resisting property of gate valve, and the monnolithic case of component is better appearance also.
As further improvement of the utility model, this gate valve adopts pressure self tightening seal structure, and described valve plate is elasticity single valve plate, and its two ends are for being welded to connect.
Pressure self tightening seal structure is to produce sealing (under the low pressure) by applying external pressure in advance, flashboard begins to take place deformation when pressure is increasing, and externally under the effect of fixed block the subject distortion of product be locked, and sealing site pressure is more big more will produce leakage.Adopt pressure self tightening seal structure, valve plate can take place that deformation trends towards the external fixator direction and fixed block more closely forms stronger combination force under pressure, and formation seals; In addition, valve plate is elasticity single valve plate, and its two ends are for being welded to connect, and the beneficial effect of its generation is, structure is more succinct, and airtight performance is more reliable.
As further improvement of the utility model, described rotating disc manual or control by Electric actuator, described Electric actuator disposes motor special respectively, retarder, torque controling mechanism, execute-in-place mechanism, hand, electronic switching mechanism, except local operation, can also carry out remote-controlled operation.
No matter select to adopt manually or Electric actuator is controlled rotating disc and all is fine, be convenient to operator and select, be manually or electronic, and operator can judge that whether reliable whether valve plate touches at the end, seal according to the position of rotating disc; Simultaneously, Electric actuator disposes motor special respectively, retarder, and torque controling mechanism, execute-in-place mechanism, hand, electronic switching mechanism except local operation, can also carry out remote-controlled operation, and the beneficial effect of its generation is to make that the operation gate valve is more convenient.
As further improvement of the utility model, this gate valve vertically is installed on the horizontal pipe, and described valve rod makes progress, and medium can flow into from left valve channel or right valve channel, and the beneficial effect of its generation is the operation of being more convenient for.
Description of drawings
Further describe below in conjunction with accompanying drawing and mode of execution of the present utility model:
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is longitudinal sectional view of the present utility model;
Wherein: 1-valve seat, 2-left valve channel, 3-right valve channel, 4-through hole, 5-flashboard, 6-valve rod, 7-rotating disc.
Embodiment
In order further to understand the improvement that the utility model is made prior art, earlier prior art is carried out following explanation: as shown in Figure 1, it is existing gate valve, has valve body 101, flashboard 102, valve seat 103, valve rod 104, filler 105, Gland 106, gland spiral shell inspection 107, Stem Mut 108 and handwheel 109, wherein the valve seat 103 of structural ceramics or special cermacis is with valve body 101 taper fit, be provided with in the valve body 101 with valve seat 103 contact and with the valve seat clamp sleeve 110 of valve seat 103 location, valve seat orifice isostructure pottery in the valve seat 103 or the flap taper fit of special cermacis, this flashboard 102 connects with valve rod 104 bearing pins 111, and valve seat orifice is then linked up with the left valve channel 112 and the right valve channel 113 that are located on the valve body 101.Because stupalith enbrittles, in order to prevent that valve seat 103 pressurizeds from breaking, soft metal pad 114 can be set in order to improve flashboard 102 with the join strength of valve rod 104 in the bottom of valve seat 103, the end of the valve rod 104 in the present embodiment forms connecting head 115, and with the connection handle 116 formation nested relationship on the flashboard 102, connect with bearing pin 111 1 then.The valve body 101 of present embodiment is upper and lower two body structures, and utilizes the lower end surface of upper valve body 101 directly to apply pressure to valve seat clamp sleeve 110, therefore, must with the stressed surface of contact of upper and lower valve body 101 seal ring 117,118 be set at valve seat clamp sleeve 110.
For understanding the novel content of this enforcement more easily, the following stated relate to about, up and down with accompanying drawing in the orientation be consistent.
As shown in Figure 2, this implements novel a kind of high voltage generating station gate valve, has valve seat 1, valve seat 1 is provided with left valve channel 2 and the right valve channel 3 that is connected with pipeline respectively, the upper end, place has through hole 4 in the middle of left valve channel 2 and the right valve channel 3, also includes the valve rod 6 that connects flashboard 5, and flashboard 5 is embedded in the inner chamber of through hole 4 formation, thereby drive valve rod 6 control flashboards 5 by rotating disc 7 and open and close pipeline, the sealing surface of valve seat 1 adopts the cobalt base hard alloy plasma spray to form.
Gate valve adopts pressure self tightening seal structure, and described valve plate 5 is elasticity single valve plate, and its two ends are for being welded to connect, described rotating disc manual or control by Electric actuator, described Electric actuator disposes motor special, retarder respectively, torque controling mechanism, execute-in-place mechanism, hand, electronic switching mechanism are except local operation, can also carry out remote-controlled operation, this gate valve vertically is installed on the horizontal pipe, and described valve rod 6 makes progress, and medium can flow into from left valve channel 2 or right valve channel 3.
Adopt the high voltage generating station gate valve of the technical solution of the utility model, cost is low, has saved raw-material use, and the structure uniqueness namely guarantees resistance to compression and the corrosion resistance of gate valve to have wear resistance again.
By reference to the accompanying drawings mode of execution of the present utility model has been done detailed explanation above, but the utility model is not limited to above-mentioned mode of execution, in the ken that affiliated technical field those of ordinary skill possesses, can also under the prerequisite that does not break away from the utility model aim, make a variety of changes.
Claims (4)
1. high voltage generating station gate valve, this gate valve has valve seat (1), described valve seat (1) is provided with left valve channel (2) and the right valve channel (3) that is connected with pipeline respectively, the upper end, place has through hole (4) in the middle of described left valve channel (2) and the right valve channel (3), also include the valve rod (6) that connects flashboard (5), it is characterized in that described flashboard (5) is embedded in the through hole (4), drive valve rod (6) thereby control flashboard (5) keying pipeline by rotating disc (7).
2. a kind of high voltage generating station gate valve as claimed in claim 1 is characterized in that, the sealing surface of valve seat (1) adopts the cobalt base hard alloy plasma spray to form.
3. a kind of high voltage generating station gate valve as claimed in claim 1 is characterized in that, this gate valve adopts pressure self tightening seal structure, and described valve plate (5) is elasticity single valve plate, and its two ends are for being welded to connect.
4. a kind of high voltage generating station gate valve as claimed in claim 1 is characterized in that, described rotating disc is for manually or by Electric actuator controlling, and described Electric actuator disposes motor special respectively, retarder, torque controling mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320029431 CN203115148U (en) | 2013-01-21 | 2013-01-21 | High-voltage power station sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320029431 CN203115148U (en) | 2013-01-21 | 2013-01-21 | High-voltage power station sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115148U true CN203115148U (en) | 2013-08-07 |
Family
ID=48895496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320029431 Expired - Fee Related CN203115148U (en) | 2013-01-21 | 2013-01-21 | High-voltage power station sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191178A (en) * | 2014-09-10 | 2014-12-10 | 芜湖市金贸流体科技股份有限公司 | Machining method for hard sealing gate valve body |
-
2013
- 2013-01-21 CN CN 201320029431 patent/CN203115148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191178A (en) * | 2014-09-10 | 2014-12-10 | 芜湖市金贸流体科技股份有限公司 | Machining method for hard sealing gate valve body |
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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: 20130807 Termination date: 20140121 |