CN212960063U

CN212960063U - High-temperature stop valve

Info

Publication number: CN212960063U
Application number: CN202021471761.2U
Authority: CN
Inventors: 刘以海
Original assignee: Yancheng Keda Instrument Co ltd
Current assignee: Yancheng Keda Instrument Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-13
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a high-temperature stop valve, which comprises a valve body, wherein a connecting seat is welded at the top end of the valve body, a valve cover is rotatably installed at the top end of the connecting seat, a transmission rod is rotatably installed inside the valve cover, a valve wheel is welded at the top end of the transmission rod, a stop cavity is arranged inside the valve body, two ends of the stop cavity are respectively communicated with a liquid inlet cavity and a liquid outlet cavity, and a valve disc is installed in the stop cavity through a buckle, the utility model can conveniently filter gas and liquid entering the inside of the valve body through a filter screen which is installed in the liquid inlet pipe at one end of the valve body through a buckle, thereby avoiding the situation that the gas and liquid containing impurities in the gas and liquid affect the stop effect of the whole valve body, can push a partition plate to move when the liquid flows to normally drain the liquid, and can push the partition plate to, the liquid discharge pipe is sealed, so that the situation that gas and liquid flow back is generated is placed, and the use requirement of the stop valve is met.

Description

High-temperature stop valve

Technical Field

The utility model relates to a stop valve field specifically is a high temperature stop valve.

Background

The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the fully open position of the shut-off valve is determined by the stroke of the valve clack.

However, the existing shut-off valve has the following disadvantages:

1. the existing stop valve cannot be applied to high-temperature gas-liquid regulation and control, so that the temperature of the existing stop valve is easily too high, and an operator is injured.

2. The existing stop valve is single in function, the interior of the stop valve is easy to enter impurities to influence the stop effect, and meanwhile, the stop valve does not have the function of preventing countercurrent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature stop valve to solve current stop valve among the above-mentioned background art, can't use on high temperature gas-liquid regulation and control, lead to its high temperature easily, cause the injury to the operator, current stop valve, the function singleness, inside entering impurity influences ending the effect easily, does not have the problem of preventing the function against the current simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature stop valve, includes the valve body, the welding of valve body top has the linking seat, link up seat top swivelling joint and have the valve gap, the inside swivelling joint of valve gap has the transfer line, the welding of transfer line top has the valve wheel, the valve body is inside to have seted up by the chamber, it has feed liquor chamber and flowing back chamber to communicate respectively by chamber both ends, end intracavity portion eye-splice and install the valve disc, the welding of valve disc top has the valve rod, bolted connection between valve rod top and the transfer line.

Preferably, the rotatory intercommunication of valve body one end has the feed liquor pipe, feed liquor pipe and the mutual intercommunication of feed liquor intracavity portion, the filter screen is installed to the intraductal buckle of feed liquor, through the filter screen of the intraductal buckle installation of valve body one end feed liquor, conveniently filters the inside gas-liquid that gets into the valve body to it influences the condition emergence of whole valve body by the effect to avoid containing impurity in the gas-liquid.

Preferably, the valve body other end communicates soon has the fluid-discharge tube, the fluid-discharge tube communicates with the flowing back intracavity portion each other, the inside top of fluid-discharge tube is inlayed and is had spacing pivot, the welding of spacing pivot bottom has a partition board, fluid-discharge tube bottom surface inlays and has limit baffle, limit baffle supports and leans on in a partition board side surface, through the inside embedded spacing pivot of valve body one end fluid-discharge tube, can promote when liquid flows to seal the partition board and remove, carries out normal flowing back, and when liquid appears backflowing, accessible liquid promotes to seal up the partition board and supports and lean on limit baffle, seals the fluid-discharge tube to place the condition that appears the gas-liquid refluence, satisfied the user demand of stop valve.

Preferably, the heat insulation plate is installed in the connecting seat through a buckle, and the heat insulation plate installed in the connecting seat through the buckle can separate high temperature generated in the valve body, so that a high-temperature transmission effect is reduced, and the whole stop valve has a high-temperature-resistant effect.

Preferably, the sealing rubber ring is installed in the valve cover in a buckling mode, the sealing rubber ring is sleeved on the surface of the valve rod in a buckling mode, and the sealing effect of the whole stop valve can be improved through the sealing rubber ring installed in the valve cover in a buckling mode.

Preferably, thermal-insulated hand wheel is installed to valve wheel top surface bolt, valve body surface box is buckled and is installed the isolation frame, the inside of isolation frame is inlayed and is had the strengthening rib, through the thermal-insulated hand wheel of valve wheel top surface bolt installation, can avoid the user at the in-process of adjusting the stop valve, and the valve wheel high temperature leads to the fact the condition of injury to the operator to take place, simultaneously through the isolation frame of valve body surface box installation, can keep apart the valve body, avoids the valve body surface temperature too high, and the operator mistake touches the condition that leads to the fact the injury to appear, has improved the intensity of isolation frame through the inside inlayed strengthening rib of isolation frame, avoids the isolation frame to appear deforming fracture's condition and takes place.

The utility model provides a high temperature stop valve possesses following beneficial effect:

(1) the utility model discloses a filter screen of buckle installation in valve body one end feed liquor pipe, the convenience is filtered the inside gas-liquid that gets into the valve body, thereby it influences the whole valve body by the condition emergence of effect to contain impurity in the gas-liquid, through the inside embedded spacing pivot of valve body one end fluid-discharge tube, can promote the partition plate when liquid flows and remove, carry out normal flowing back, when liquid appears flowing back, accessible liquid promotes the partition plate and supports and lean on limit baffle, seal the fluid-discharge tube, thereby place the condition that the gas-liquid refluence appears, the user demand of stop valve has been satisfied.

(2) The utility model discloses a link up the heat insulating plate of the inside buckle installation of seat, can carry out the separation to the high temperature that produces in the valve body, subduct high temperature transmission effect, make whole stop valve play high temperature resistance effect, through the sealed rubber ring of the inside buckle installation of valve gap, can improve the sealed effect of whole stop valve.

(3) The utility model discloses a thermal-insulated hand wheel of valve wheel top surface bolt installation can avoid the user at the in-process of adjusting the stop valve, and the valve wheel high temperature causes the condition of injury to take place to the operator, detains the isolation frame of installation through valve body surface cover simultaneously, can keep apart the valve body, avoids valve body surface temperature too high, and the operator mistake touches the condition that causes the injury and appears, has improved the intensity of isolation frame through the inside inlayed strengthening rib of isolation frame, avoids the isolation frame to appear deforming fracture's condition and takes place.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the valve body of the present invention;

FIG. 3 is a schematic view of the internal structure of the liquid inlet pipe of the present invention;

fig. 4 is a schematic view of the internal structure of the liquid discharge tube of the present invention.

In the figure: 1. a valve body; 2. a linking seat; 3. a valve cover; 4. a transmission rod; 5. a valve wheel; 6. a heat insulation hand wheel; 7. a shut-off chamber; 8. a valve disc; 9. a valve stem; 10. a liquid inlet cavity; 11. a liquid discharge cavity; 12. a liquid inlet pipe; 13. a liquid discharge pipe; 14. a filter screen; 15. a limiting rotating shaft; 16. a limit baffle; 17. sealing the partition plate; 18. an isolation frame; 19. reinforcing ribs; 20. sealing the rubber ring; 21. a heat insulation plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a high temperature stop valve, includes valve body 1, the welding of 1 top of valve body has linking seat 2, link up 2 top of seat and rotatably install valve gap 3, the inside rotatory transfer line 4 of installing of valve gap 3, the welding of 4 tops of transfer line has

valve wheel

5, 1 inside has seted up by

chamber

7, 7 both ends in chamber communicate respectively has feed liquor chamber 10 and flowing

back chamber

11, 7 inside eye-splice in chamber install valve disc 8, the welding of 8 tops of valve disc has valve rod 9, bolted connection between 9 tops of valve rod and the transfer line 4.

The rotatory intercommunication of 1 one end of valve body has feed liquor pipe 12, feed liquor pipe 12 and the inside intercommunication each other in feed liquor chamber 10, filter screen 14 is installed to the inside buckle of feed liquor pipe 12, and through filter screen 14 of the intraductal buckle installation of 1 one end feed liquor of valve body 12, the convenience is filtered the gas-liquid that gets into 1 inside of valve body to it influences the condition emergence of whole valve body by the effect to contain impurity in the gas-liquid to avoid.

The other end of the valve body 1 is communicated with a liquid discharge pipe 13 in a rotating manner, the liquid discharge pipe 13 is communicated with the inside of a liquid discharge cavity 11, a limiting rotating shaft 15 is embedded at the top end of the inside of the liquid discharge pipe 13, a sealing plate 17 is welded at the bottom end of the limiting rotating shaft 15, a limiting baffle 16 is embedded at the bottom end of the liquid discharge pipe 13, the limiting baffle 16 abuts against one side surface of the sealing plate 17, the limiting rotating shaft 15 embedded inside the liquid discharge pipe 13 at one end of the valve body can push the sealing plate 17 to move when liquid flows, normal liquid discharge is carried out, the sealing plate 17 is pushed by the liquid to abut against the limiting baffle 16 when the liquid flows back, the liquid discharge pipe 13 is sealed, the gas-liquid backflow situation is placed, and the use requirement.

The heat insulation plate 21 is installed in the connecting seat 2 through a buckle, and the heat insulation plate 21 installed in the connecting seat 2 through the buckle can separate high temperature generated in the valve body 1, so that the high-temperature transmission effect is reduced, and the whole stop valve has the high-temperature-resistant effect.

The inside buckle of valve gap 3 installs sealing rubber ring 20, and sealing rubber ring 20 cover is detained in valve rod 9 surface, through the sealing rubber ring 20 of the inside buckle installation of valve gap 3, can improve the sealed effect of whole stop valve.

Thermal-insulated hand wheel 6 is installed to 5 top surface bolts of valve wheel, 1 surperficial box of valve body is detained and is installed isolation frame 18, isolation frame 18 is inside to be inlayed and to have strengthening rib 19, through the thermal-insulated hand wheel 6 of 5 top surface bolts installations of valve wheel, can avoid the user at the in-process of adjusting the stop valve, 5 high temperatures of valve wheel cause the condition of injury to take place to the operator, through the isolation frame 18 of 1 surperficial box installation of valve body simultaneously, can keep apart valve body 1, avoid 1 surface temperature of valve body too high, the operator mistake touches the condition that causes the injury to appear, through the inside inlayed strengthening rib 19 of isolation frame 18 improved the intensity of isolation frame 18, avoid isolation frame 18 to appear deforming fracture's condition and taking place.

It should be noted that, when the high-temperature stop valve works, the gas and liquid entering the inside of the valve body 1 can be conveniently filtered through the filter screen 14 installed in the liquid inlet pipe 12 at one end of the valve body 1 in a buckling manner, so that the situation that the gas and liquid contain impurities to affect the stopping effect of the whole valve body is avoided, the limit rotating shaft 15 embedded in the liquid outlet pipe 13 at one end of the valve body 1 can push the sealing plate 17 to move when the liquid flows, so that the liquid can be normally discharged, when the liquid flows back, the sealing plate 17 can be pushed by the liquid to abut against the limit baffle 16 to seal the liquid outlet pipe 13, so that the situation that the gas and liquid flow back occurs is placed, the use requirement of the stop valve is met, the high temperature generated in the valve body 1 can be blocked through the temperature-blocking plate 21 installed in the connecting seat 2 in a buckling manner, so as to reduce the high-temperature transmission effect, so that the whole stop, can improve the sealed effect of whole stop valve, thermal-insulated hand wheel 6 through 5 top surface bolt installations of valve wheel, can avoid the user at the in-process of adjusting the stop valve, 5 high-temperature conditions that cause the injury to the operator of valve wheel take place, simultaneously through the isolation frame 18 of 1 surperficial overlap buckle installation of valve body, can keep apart 1 valve body, avoid 1 high surface temperature of valve body, the operator mistake touches the condition that causes the injury and appears, the inside inlayed strengthening rib 19 of isolation frame 18 has improved the intensity of isolation frame 18, avoid isolation frame 18 the condition that deformation fracture appears to take place.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high temperature stop valve, includes valve body (1), its characterized in that: the welding of valve body (1) top has linking seat (2), link up seat (2) top rotation and install valve gap (3), valve gap (3) inside rotation installs transfer line (4), transfer line (4) top welding has valve wheel (5), valve body (1) is inside to have seted up by chamber (7), it has feed liquor chamber (10) and flowing back chamber (11) to communicate respectively by chamber (7) both ends, valve disc (8) are installed to chamber (7) inside eye-splice, the welding of valve disc (8) top has valve rod (9), bolted connection between valve rod (9) top and transfer line (4).

2. A high temperature shut-off valve as defined in claim 1, wherein: the rotary valve is characterized in that one end of the valve body (1) is rotatably communicated with a liquid inlet pipe (12), the liquid inlet pipe (12) is communicated with the inside of the liquid inlet cavity (10), and a filter screen (14) is installed inside the liquid inlet pipe (12) in a buckling mode.

3. A high temperature shut-off valve as defined in claim 1, wherein: valve body (1) other end revolves the intercommunication and has fluid-discharge tube (13), fluid-discharge tube (13) and flowing back chamber (11) inside intercommunication each other, the inside top of fluid-discharge tube (13) is inlayed and is had spacing pivot (15), spacing pivot (15) bottom welding has a baffle (17), surface mosaic has limit baffle (16) in fluid-discharge tube (13) bottom, limit baffle (16) support by in a baffle (17) side surface.

4. A high temperature shut-off valve as defined in claim 1, wherein: a heat insulation plate (21) is arranged in the connecting seat (2) in a buckling mode.

5. A high temperature shut-off valve as defined in claim 1, wherein: a sealing rubber ring (20) is installed inside the valve cover (3) in a buckling mode, and the sealing rubber ring (20) is sleeved and buckled on the surface of the valve rod (9).

6. A high temperature shut-off valve as defined in claim 1, wherein: thermal-insulated hand wheel (6) are installed to valve wheel (5) top surface bolt, valve body (1) surface cover is detained and is installed isolation frame (18), it has strengthening rib (19) to keep apart inside the inlaying of frame (18).