CN2549277Y - Self-sealed energy-saving anticorrosive gate valve - Google Patents
Self-sealed energy-saving anticorrosive gate valve Download PDFInfo
- Publication number
- CN2549277Y CN2549277Y CN 02278027 CN02278027U CN2549277Y CN 2549277 Y CN2549277 Y CN 2549277Y CN 02278027 CN02278027 CN 02278027 CN 02278027 U CN02278027 U CN 02278027U CN 2549277 Y CN2549277 Y CN 2549277Y
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- screw mandrel
- valve
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- selfsealings
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Abstract
The utility model discloses a self-sealed energy-saving anticorrosive gate value which comprises a value body, a value core in a value cavity and a lead screw connected with the value core. The lead screw at one end of the value body is sleeved with a lead screw cover moving up and down matching with the lead screw. The lead screw cover is fixed with a rotary hand wheel, wherein, the value body has a left value body and a right value body; the value core has a left, a middle and a right seal boards; the three seal boards are provided with a flow holes with the same size. The outer margin of the two seal board flow hold is connected with a boss connecting to the pipeline. The flow hole at the middle seal board has reverse direction with the left and the right seal boards and the middle seal board is connected with the lead screw. The gate value has good seal performance and complete separation of the flow liquid medium and the value body, thereby avoiding the running, emitting and leaking phenomenon of the traditional value, prolonging the service life of the gate value with large flow rate. The direct current of the medium is unbloked, suitable for varied pipelines. Every component can be disassembled and replaced, which avoids whole discharge with one breakage and reduces waste.
Description
(1) technical field: the utility model relates to a kind of gate valve, relates in particular to a kind of selfsealings energy-saving anti-corrosive gate valve of using on hot-water heating, chemical industry, the oil and gas pipes of being used for.
(2) background technique: the common valve that is used on hot-water heating or chemical industry, the oil and gas industry pipeline mainly comprises valve body, the endoceliac spool of valve, the screw mandrel that is connected as a single entity with spool combines, and close and open lifting by screw mandrel or the decline of valve make spool stop up the valve body discharge orifice or smoke out spool and makes valve body open realization; Another kind of then be to stop up valve body by the valve core sealed cover that the rotation of screw mandrel drives sphere shape to realize, the valve of two kinds of forms all is to contact with the valve body face seal and realize closing of valve by spool.Because the frequent switch of valve, make the often friction and cause damage of spool and valve body surface of contact, high-pressure water flow or liquid will flow out from the surface of contact that is worn, and then flow out along its screw mandrel, the normal run, drip, leak phenomenon of saying in the industrial production that Here it is.Cause the waste of water or other liquid, owing to appearring in the wearing and tearing of valve, dangerous situation cause irremediable loss situation to happen occasionally in the industrial production, at this type of situation, the inventor has proposed a kind of " selfsealings water-saving valve " September 11 calendar year 2001 to Patent Office of the People's Republic of China, and having obtained license, the patent No. is CN01251857.3.The structure of this patent comprises valve body, be positioned at the spool of valve body shutoff valve body discharge orifice, fixedly connected the operating handle of drive valve core rotation with spool, its spool is divided into top cover labyrinth, lower seal two-part, top cover labyrinth lid edge aligns with the lower seal sealing, lower seal is fixed in the valve body, top cover labyrinth is fixedlyed connected with operating handle, there is an isolation zone by the center that seal ring is divided into two semicircle circles in the middle of the lower seal, have in the middle of the top cover labyrinth one with cover the edge height and equate, with the spacer of lower seal isolation zone equal in length, this spacer is divided equally two semicircle lids with sealing cover.
In the time of in lower seal is fixed on valve body, two semicircle circles are relative with water inlet and osculum on the valve body respectively, at this moment, sealing cover is relative with Mi Quan, isolation zone on the lower seal is relative with the spacer of top cover labyrinth, the valve inner paddle hole is separated in two separate cavities, be that water-inlet cavity and water chamber cut off, at this moment, valve is in closed condition, and when 90 ° of handle with sleeves, spacer intersects with the isolation zone, two chambeies communicate, this moment, valve was in open mode, and medium flows out from the inside of sealing surface, because the outer ring of sealing surface is just gone up left rotation and right rotation in position, opening or closing of valve is to lean on the rotate realization of the sealing cover of spool self relative to seal ring, so medium is in sealing state always.No matter open or close, liquid is flowed out along operating handle from the screw slit, stopped in civilian and the industrial production race, emit, weeping; Though this valve sealing effect is better, valve is longer working life, also exists the little deficiency of flow, seems unable to do what one wishes for the chemical pipeline of big civil pipeline of traffic requirement or medium thickness.
(3) summary of the invention: selfsealings energy-saving valve flow is little in order to overcome, the restricted deficiency of using scope, the utility model provide a kind of good seal performance, flow big, satisfy the selfsealings energy-saving anti-corrosive gate valve that various civilian, oil gas, chemical industry pipe use.The technical solution of the utility model realizes in the following manner: a kind of selfsealings energy-saving anti-corrosive gate valve, it comprises valve body, be positioned at the spool of valve pocket, the screw mandrel that is connected with spool, appear and be with the screw mandrel cover that cooperates screw mandrel to move up and down on the screw mandrel of valve body one end, screw mandrel puts and is fixed with the rotation handwheel, wherein valve body is divided into left valve barrel, right valve barrel, spool is divided into a left side, in, right three sealing plates, have equal-sized discharge orifice on three sealing plates, left side sealing plate, right sealing plate symmetry, be connected with the boss that connects with pipeline on the outer rim of two sealing plate discharge orifices, the intermediate seal plate with about discharge orifice position above-below direction on two sealing plates opposite, the intermediate seal plate is connected with screw mandrel.
Left valve barrel, right valve barrel symmetry also is connected as a single entity by fastening screw.
Studding with chock between handwheel and the screw mandrel cover rotates handwheel and screw mandrel cover synchronously.
Screw mandrel puts and is fixed with pressure cap block handwheel.
Screw mandrel is connected with screw by groove button, screw mandrel fastener with the intermediate seal plate.
Graphite pads also is housed to avoid rigid bad sealing plate of contact impaired between left and right sealing plate and valve body.
The left, center, right sealing plate adopts 95
#The sealing plate that porcelain is made.
Long-pending effect of the present utility model:
1, good seal performance, the left, center, right sealing plate be provided with as the valve body liner, directly dock with pipeline, flowing medium and valve body are isolated fully, thereby stopped race that conventional valves occurs, emitted, weeping, prolong working life of gate valve.
2, flow is big, and left, center, right sealing plate discharge orifice is relative, and the medium direct current is unblocked, is applicable to various civilian and chemical industry, oil and gas pipes.
3, dismounting is easy to maintenance, and each parts is all detachably changed, and avoids a place to damage, and integral body is scrapped, and saves resource, cuts the waste.
(4) description of drawings:
Fig. 1 is a cross-sectional view of the present utility model.
(5) embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:
As seen from Figure 1, the screw mandrel 1 that the utility model comprises valve body, is positioned at the spool of valve pocket, is connected with spool, appear and be with the screw mandrel cover 3 that cooperates screw mandrel to move up and down on the screw mandrel 1 of valve body one end, be fixed with on the screw mandrel cover 3 and rotate handwheel 13, stud with chock 12 between handwheel 13 and the screw mandrel cover 3 handwheel and screw mandrel cover 3 are rotated synchronously; Its valve body is divided into left valve barrel 5, right valve barrel 10, two valve body symmetries, spool is divided into three sealing plates in left, center, right, left side sealing plate 8, right sealing plate 7 symmetries also have equal-sized discharge orifice, the intermediate seal plate has and the equal-sized pod apertures of discharge orifice, about be connected with the circular hole boss that connects with pipeline on the outer rim of two sealing plate discharge orifices, intermediate seal plate 6 with about discharge orifice position on two sealing plates opposite up and down, screw mandrel 1 is connected with screw 4 by screw mandrel fastener 11 with the intermediate seal plate; Left valve barrel 10, right valve barrel 5 are connected as a single entity by fastening screw; Be fixed with pressure cap 2 block handwheels 13 on the screw mandrel cover 3; Graphite pads 9 also is housed to avoid damaging sealing plate because of rigid contact between left and right sealing plate and valve body; The left, center, right sealing plate adopts 95
#The sealing plate that porcelain is made.
Find out that by Fig. 1 when left and right sealing plate discharge orifice alignd with intermediate seal plate pod apertures, this moment, valve was in opening state; Rotation hand wheel, screw mandrel move downward vertically, drive the intermediate seal plate and pass vertically downward, and two sealing plate clamps are in the centre until about the pod apertures quilt, and two discharge orifices are by the block of intermediate seal plate about the while, and gate valve is in closed condition.Again to the opposite spin handwheel, screw mandrel rises, and the intermediate seal plate is vertically mentioned, and until the alignment of three holes, handwheel is prevented from rotating, and then gate valve is in full open mode.No matter which kind of state valve is in, pipeline medium only and sealing plate the pod apertures inwall contact, so the valve body chamber can frayed and erosion, and the best new material 95 of sealing plate employing
#The sealing plate that porcelain is made is made, and has wear-resisting, high temperature resistant, corrosion resistant characteristic property, can be widely used on chemical industry, oil, electric power, the gas pipe line, and alternative stainless steel uses as the corrosion protection valve.
Claims (7)
1, a kind of selfsealings energy-saving anti-corrosive gate valve, it comprises valve body, be positioned at the spool of valve pocket, the screw mandrel that is connected with spool (1), appear and be with the screw mandrel cover (3) that cooperates screw mandrel to move up and down on the screw mandrel (1) of valve body one end, be fixed with on the screw mandrel cover (3) and rotate handwheel (13), it is characterized in that valve body is divided into left valve barrel (5), right valve barrel (10), spool is divided into a left side, in, right three sealing plates, have equal-sized discharge orifice on three sealing plates, left side sealing plate (8), right sealing plate (7) symmetry, be connected with the boss that connects with pipeline on the outer rim of two sealing plate discharge orifices, intermediate seal plate (6) with about two sealing plates discharge orifice position above-below direction opposite, intermediate seal plate (6) is connected with screw mandrel (1).
2, selfsealings energy-saving anti-corrosive gate valve according to claim 1 is characterized in that left valve barrel (10), right valve barrel (5) symmetry and is connected as a single entity by fastening screw.
3, selfsealings energy-saving anti-corrosive gate valve according to claim 2 is characterized in that studding with between handwheel (13) and the screw mandrel cover (3) chock (12) handwheel and screw mandrel cover (3) is rotated synchronously.
4,, it is characterized in that being fixed with on the screw mandrel cover (3) pressure cap (2) of block handwheel according to claim 1,2,3 described selfsealings energy-saving anti-corrosive gate valves.
5, selfsealings energy-saving anti-corrosive gate valve according to claim 4 is characterized in that screw mandrel (1) is connected by groove button, screw mandrel fastener (11) and screw (4) with the intermediate seal plate.
6, selfsealings energy-saving anti-corrosive gate valve according to claim 5 is characterized in that also being equipped with graphite pads (9) between left and right sealing plate and valve body.
7, selfsealings energy-saving anti-corrosive gate valve according to claim 6 is characterized in that the left, center, right sealing plate is to adopt 95
#The sealing plate that porcelain is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278027 CN2549277Y (en) | 2002-06-13 | 2002-06-13 | Self-sealed energy-saving anticorrosive gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278027 CN2549277Y (en) | 2002-06-13 | 2002-06-13 | Self-sealed energy-saving anticorrosive gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549277Y true CN2549277Y (en) | 2003-05-07 |
Family
ID=33741456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278027 Expired - Fee Related CN2549277Y (en) | 2002-06-13 | 2002-06-13 | Self-sealed energy-saving anticorrosive gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549277Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110197A (en) * | 2021-12-24 | 2022-03-01 | 广西科德阀门有限责任公司 | Self-cleaning gate valve |
-
2002
- 2002-06-13 CN CN 02278027 patent/CN2549277Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110197A (en) * | 2021-12-24 | 2022-03-01 | 广西科德阀门有限责任公司 | Self-cleaning gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |