CN203115151U - Elastic seat seal gate valve - Google Patents
Elastic seat seal gate valve Download PDFInfo
- Publication number
- CN203115151U CN203115151U CN 201320040558 CN201320040558U CN203115151U CN 203115151 U CN203115151 U CN 203115151U CN 201320040558 CN201320040558 CN 201320040558 CN 201320040558 U CN201320040558 U CN 201320040558U CN 203115151 U CN203115151 U CN 203115151U
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- China
- Prior art keywords
- valve
- gate
- valve body
- wedge
- axle sleeve
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- 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 an elastic seat seal gate valve. The elastic seat seal gate valve comprises a valve body. A gate is arranged on the valve body, a fluid channel which is connected with a pipeline is further arranged in the same axis where the gate is located, the gate is further connected with a valve rod, a valve cover is sleeved on the outer circumference of the upper end portion of the valve body through a bolt, a seal ring is further arranged at the connecting position of the valve body and the valve cover, and the seal ring is tightly combined with the bolt. According to the technical scheme, the elastic seat seal gate valve is reliable in sealing performance, free of sundry sedimentation, and long in service life. According to the preferable technical scheme, the valve rod is connected with a hand wheel through a shaft sleeve, and an O-shaped seal ring is arranged on the upper end portion of the valve cover and located on the lower side of the shaft sleeve. A shaft cover is further arranged on the shaft sleeve, by the adoption of the O-shaped seal ring, the phenomenon of water leakage can be greatly reduced, and the O-shaped seal ring can be replaced under the situations that pressure exists and water is not cut off.
Description
Technical field
The utility model relates to fluid pipe-line component equipment technology field, especially relates to having that sealability is reliable, long service life, having a kind of elastic sluice valve with wedge-shaped sealing face that is well covering performance.
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, and sealability is reliable, and resistance to compression and corrosion resistance are good, has the elastic sluice valve with wedge-shaped sealing face that is well covering performance.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of elastic sluice valve with wedge-shaped sealing face, include valve body, described valve body is provided with gate, and with the liquid passage that also is provided with connecting tube on the same axis at gate place, described gate also is connected with valve rod, the upper end portion excircle of described valve body is socketed with valve gap with bolt, the joint of described valve body and valve gap also is provided with seal ring, and the sealing circle is combined closely with described bolt, is provided with an axle sleeve between valve rod and handwheel.
Adopt the elastic sluice valve with wedge-shaped sealing face of technique scheme, because the liquid passage of connecting tube and gate have strengthened the impact of liquid to gate on same axis, thereby reduced the alluvial of foreign material in the valve body bottom; In addition, the upper end portion excircle of valve body is socketed with valve gap with bolt, reinforced between valve gap and the valve body and be connected, also be provided with seal ring in the joint of valve body and valve gap again, make that the sealability of whole elastic sluice valve with wedge-shaped sealing face is more reliable, and then improved compression resistance, have and well covering performance.
As further improvement of the utility model, described valve rod links to each other with handwheel by axle sleeve, the upper end portion of described valve gap and be positioned at the axle sleeve downside O RunddichtringO also is installed; Also be provided with shaft-cup on the described axle sleeve.
Adopting the beneficial effect of its generation of O RunddichtringO is significantly to reduce water leakage phenomenon.
As further improvement of the utility model, between described axle sleeve and the O RunddichtringO thrust pad is installed, the beneficial effect of its generation is, reduced surface friction drag, reduced the difficulty of operation.
As further improvement of the utility model, described valve body adopts spheroidal graphite cast iron; Described gate adopts spheroidal graphite cast iron to cover EPDM outward, and the beneficial effect of its generation is further to have strengthened the decay resistance of gate valve and gate.
As further improvement of the utility model, the inner chamber of described valve body adopts nontoxic epoxy resin application, and the beneficial effect of its generation is, has prevented the corrosion of valve body and gets rusty, and not only supplies water and can drink raw, and can be used for foul sewer system; The plain base valve seat construction identical with pipeline adopted in the bottom of this gate valve, further, is difficult for forming foreign material in the bottom and deposits.
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 side sectional view of the present utility model;
Fig. 3 is front section view of the present utility model;
Wherein: 1-valve body, 2-gate, 3-bolt, 4-seal ring, 5-valve gap, 6-valve rod, 7-O RunddichtringO, 8-thrust pad, 9-axle sleeve, 10-connecting bolt, 11-shaft-cup, 12-dust-proof cover, 13-handwheel, 14-tightening nut, 15-liquid passage.
Embodiment
In order further to understand the improvement that the utility model is made prior art, at first 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.
Shown in Fig. 2,3, a kind of elastic sluice valve with wedge-shaped sealing face, include valve body 1, valve body 1 adopts spheroidal graphite cast iron, the inner chamber of valve body 1 adopts nontoxic epoxy resin application, valve body 1 is provided with gate 2, gate 2 adopts spheroidal graphite cast iron to cover EPDM outward, with the liquid passage 15 that also is provided with connecting tube on the same axis at gate 2 places, gate 2 also is connected with valve rod 6, the upper end portion excircle of described valve body 1 is connected to valve gap 5 with bolt 3 fixed covers, and described valve body 1 also is provided with seal ring 4 with the joint of valve gap 5, and sealing circle 4 is tight with described bolt 3 combinations; Valve rod 6 links to each other with handwheel 13 by axle sleeve 9, and handwheel 13 is fixed on the support by tightening nut 14, and the bottom of the upper end portion of valve gap 5 and handwheel 13 is fixed together by connecting bolt 10, and this fixing position also is provided with dust-proof cover 12; The upper end portion of valve gap 5 and be positioned at axle sleeve 9 downsides O RunddichtringO 7 also is installed; Also be provided with shaft-cup 11 on the described axle sleeve 9; Between axle sleeve 9 and the O RunddichtringO 7 thrust pad 8 is installed, the plain base valve seat construction identical with pipeline adopted in the bottom of gate valve.
In sum, elastic sluice valve with wedge-shaped sealing face of the present utility model adopts whole encapsulate, has good performance and the accurate physical dimension covered, and sealing is reliable, and the life-span is long.
More than show and described basic principle of the present utility model, major character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. elastic sluice valve with wedge-shaped sealing face, include valve body (1), described valve body (1) is provided with gate (2), with the liquid passage (15) that also is provided with connecting tube on the same axis at gate (2) place, described gate (2) also is connected with valve rod (6), the upper end portion excircle of described valve body (1) is connected to valve gap (5) with bolt (3) fixed cover, it is characterized in that: described valve body (1) also is provided with seal ring (4) with the joint of valve gap (5), sealing circle (4) is tight with described bolt (3) combination, is provided with an axle sleeve (9) between valve rod (6) and handwheel.
2. a kind of elastic sluice valve with wedge-shaped sealing face as claimed in claim 1 is characterized in that: described valve rod (6) links to each other with handwheel (13) by axle sleeve (9), the upper end portion of described valve gap (5) and be positioned at axle sleeve (9) downside O RunddichtringO (7) also is installed; Also be provided with shaft-cup (11) on the described axle sleeve (9).
3. a kind of elastic sluice valve with wedge-shaped sealing face as claimed in claim 1 or 2 is characterized in that: between described axle sleeve (9) and the O RunddichtringO (7) thrust pad (8) is installed.
4. a kind of elastic sluice valve with wedge-shaped sealing face as claimed in claim 1 is characterized in that: described valve body (1) employing spheroidal graphite cast iron; Described gate (2) adopts spheroidal graphite cast iron to cover EPDM outward.
5. a kind of elastic sluice valve with wedge-shaped sealing face as claimed in claim 1, it is characterized in that: the inner chamber of described valve body (1) adopts nontoxic epoxy resin application; The plain base valve seat construction identical with pipeline adopted in the bottom of this gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040558 CN203115151U (en) | 2013-01-25 | 2013-01-25 | Elastic seat seal gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040558 CN203115151U (en) | 2013-01-25 | 2013-01-25 | Elastic seat seal gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115151U true CN203115151U (en) | 2013-08-07 |
Family
ID=48895499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040558 Expired - Fee Related CN203115151U (en) | 2013-01-25 | 2013-01-25 | Elastic seat seal gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115151U (en) |
-
2013
- 2013-01-25 CN CN 201320040558 patent/CN203115151U/en not_active Expired - Fee Related
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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: 20140125 |