CN210461706U

CN210461706U - High-temperature high-pressure stop valve

Info

Publication number: CN210461706U
Application number: CN201921356044.2U
Authority: CN
Inventors: 刘泉; 赵宗会
Original assignee: NANJING GENESIS ELECTRIC AUTOMATION Co Ltd
Current assignee: NANJING GENESIS ELECTRIC AUTOMATION Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-05
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a high temperature high pressure stop valve, including handle, internal thread pipe, panel fixation nut, packing ring piece, disk seat, valve rod, case, valve body, feed liquor pore, damping pore, liquid outlet pore, rubber packing ring, drum and graphite powder. The utility model relates to a rationally, through having increased high temperature strenghthened type filler promptly flexible graphite material in relevant position department, have anti high temperature and highly compressed performance characteristic, can guarantee quick opening or close the pipeline route, it removes to drive case part through the valve rod, can easily realize the separation and the actuation of case and disk seat, thereby realize opening or cutting off of appearance water pipeline, replace imported high temperature high pressure stop valve, production interface size is according to internal specification production, do not need secondary operation, the cost is reduced, shorten production cycle, make things convenient for later stage debugging and maintenance.

Description

High-temperature high-pressure stop valve

Technical Field

The utility model relates to a stop valve specifically is a high temperature high pressure stop valve, belongs to liquid pressure control technical field.

Background

In a thermal system for thermal power generation, a high-temperature and high-pressure stop valve is an important component of the thermal system. All thermal devices are connected through valves and pipes to form a system. Therefore, the technical level of valves and pipelines, particularly high-temperature and high-pressure stop valves, is high or low, the quality of products is high or low, the safety, reliability and economic operation of a thermal generator set are directly influenced, and the high-temperature and high-pressure stop valves are mostly installed at sample water pipelines at present. The inlet high-temperature high-pressure stop valve is a structure in which a valve seat and a valve core are tightly combined, and the valve rod drives the valve core to automatically translate through screw transmission to realize the opening and closing of the valve.

In the actual production process, although the regulation that the sample water pipeline opened and close can be realized to import high temperature high pressure stop valve, import high temperature high pressure stop valve is expensive and the purchase cycle is long, influences the production progress. In addition, import high temperature high pressure stop valve does not have the after sale point at home, and the maintenance service lags behind the degree of difficulty that has increaseed later stage debugging and maintenance, and the interface size of some brands of import high temperature high pressure stop valve does not match with domestic specification and dimension, and purchase import high pressure decompression stop valve still need take the workshop processing to weld the pipeline attach fitting again at every turn and just can use, and workshop secondary operation also influences workshop packaging efficiency, influences the delivery date. Therefore, a high-temperature and high-pressure stop valve is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high temperature high pressure stop valve for solving above-mentioned problem.

The utility model realizes the purpose through the following technical proposal, a high-temperature and high-pressure stop valve comprises a valve body, a drainage pore structure and a through-stop adjusting structure, wherein a valve seat is arranged in the middle of the profile of the valve body;

the drainage pore structure comprises a damping pore, the cross section of the damping pore is of a T-shaped structure, the damping pore is arranged in the middle of the valve body, the bottom of the damping pore is communicated with the bottom of the outer surface of the valve body through a liquid inlet pore, and the top of the damping pore is communicated with the top of the outer surface of the valve body through a liquid outlet pore;

the through-stop adjusting structure comprises a valve core, the top end of the valve core is rotatably installed in a cylinder, the top end face of the cylinder is installed at one end of a valve rod, the valve rod penetrates through the interior of a valve seat in a sliding mode, and graphite powder is filled between the middle of the valve rod and the inner hole wall of the valve seat.

Preferably, the bottom of the valve core is of a conical structure, and the bottom of the valve core is located in the middle position in the damping hole channel.

Preferably, a rubber gasket is arranged in a middle small-diameter pore passage opening in the damping pore passage, and a top end opening of the damping pore passage is in threaded connection with a column hole structure at the bottom of the valve seat in a sealing mode.

Preferably, the round port at the top of the valve seat is internally connected with one end of an internal thread pipe through a panel fixing nut in a sealing threaded manner, and the inner wall of the internal thread pipe is connected with the corresponding part of the valve rod in a threaded manner.

Preferably, the handle is installed on the top end of the valve rod, and anti-skidding lines are formed in the surface of the handle.

Preferably, a gasket sheet is arranged between the circular port at the top of the valve seat and one end port of the internal threaded pipe, and a gap is reserved between a ring hole of the gasket sheet and the annular surface of the valve rod.

The utility model has the advantages that:

1. this kind of high temperature high pressure stop valve reasonable in design has increased high temperature strenghthened type through locating at the relevant position and has packed flexible graphite material promptly, has anti high temperature and highly compressed performance characteristic, can guarantee quick opening or close the pipeline route, drives the removal of case part through the valve rod, can easily realize the separation and the actuation of case and disk seat to realize opening or cutting off of appearance water pipeline.

2. This kind of high temperature high pressure stop valve reasonable in design replaces imported high temperature high pressure stop valve, and the production interface size does not need secondary operation according to domestic specification production, and reduce cost shortens production cycle, makes things convenient for later stage debugging and maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a partial cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic view of the connection structure of the valve core and the cylinder of the present invention.

In the figure: 1. the valve comprises a handle, 2, an internal threaded pipe, 3, a panel fixing nut, 4, a gasket sheet, 5, a valve seat, 6, a valve rod, 7, a valve core, 8, a valve body, 9, a liquid inlet channel, 10, a damping channel, 11, a liquid outlet channel, 12, a rubber gasket, 13, a cylinder, 14 and graphite powder.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, a high-temperature and high-pressure stop valve includes a valve body 8, a drainage channel structure and a through-stop adjusting structure, wherein a valve seat 5 is installed in the middle of the surface of the valve body 8;

the drainage pore channel structure comprises a damping pore channel 10, the cross section of the damping pore channel 10 is of a T-shaped structure, the damping pore channel 10 is arranged in the middle of the inside of the valve body 8, the bottom of the damping pore channel 10 is communicated with the bottom of the outer surface of the valve body 8 through a liquid inlet pore channel 9, and the top of the damping pore channel 10 is communicated with the top of the outer surface of the valve body 8 through a liquid outlet pore channel 11;

the through-stop adjusting structure comprises a valve core 7, the top end of the valve core 7 is rotatably installed in a cylinder 13, the top end face of the cylinder 13 is installed at one end of a valve rod 6, the valve rod 6 penetrates through the interior of a valve seat 5 in a sliding mode, and graphite powder 14 is filled between the middle of the valve rod 6 and the inner hole wall of the valve seat 5.

The bottom of the valve core 7 is of a conical structure, and the bottom of the valve core 7 is positioned in the middle position in the damping pore channel 10, so that the port of the corresponding pore channel can be blocked better; a rubber gasket 12 is arranged in the middle small-diameter hole opening in the damping hole passage 10, and the top end opening of the damping hole passage 10 is in sealing threaded connection with the bottom column hole structure of the valve seat 5, so that the descending valve core 7 close to the middle small-diameter hole opening in the damping hole passage 10 can be sealed and blocked; the round port at the top of the valve seat 5 is in sealed threaded connection with one end of the internal threaded pipe 2 through the panel fixing nut 3, the inner wall of the internal threaded pipe 2 is in threaded connection with the corresponding part of the valve rod 6, and the corresponding end of the rotating valve rod 6 can move upwards or downwards through the threaded connection of the corresponding part of the valve rod 6 in the internal threaded pipe 2; the handle 1 is installed at the top end of the valve rod 6, and anti-skid grains are formed in the surface of the handle 1, so that the valve rod is convenient to operate by hands; a gasket sheet 4 is arranged between the round port at the top of the valve seat 5 and the port at one end of the internal threaded pipe 2, and a gap is reserved between the ring hole of the gasket sheet 4 and the annular surface of the valve rod 6, so that the sealing effect can be achieved.

When the utility model is used, the high-temperature high-pressure valve is opened in the following mode, the handle 1 rotates anticlockwise, the valve rod 6 with threads formed on the adjusting ring surface rotates upwards to drive the valve element 7 to rotate upwards, the contact part of the damping pore channel 10 and the valve element 7 is reduced, when high-pressure sample water enters the damping pore channel 10 through the liquid inlet pore channel 9 after passing through the sample water of the valve seat 5, the sample water inlet is communicated with the liquid outlet pore channel 11 because the damping pore channel 10 is separated from the valve element 7, and then flows into the damping pore channel 10 to directly flow out from the outlet of the valve body 8, so that the high-temperature high-pressure valve is opened;

the high-temperature high-pressure valve closing mode is as follows, the handle 1 rotates anticlockwise, the valve rod 6 with threads arranged on the adjusting ring surface rotates downwards to drive the valve element 7 to rotate downwards, the damping pore channel 10 is in close contact with the valve element 7, when high-pressure sample water enters the damping pore channel 10 through the sample water inlet pore channel 9 of the valve seat 5 part, the damping pore channel 10 is in contact with the valve element 7 and is in a sealing state, the sample water inlet pore channel 9 is not communicated with the liquid outlet pore channel 11, and the sample water flowing into the damping pore channel 10 is blocked, so that the high-temperature high-pressure valve closing mode is achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A high temperature high pressure stop valve which characterized in that: the valve comprises a valve body (8), a drainage pore structure and a through-stop adjusting structure, wherein a valve seat (5) is arranged in the middle of the surface of the valve body (8);

the drainage pore passage structure comprises a damping pore passage (10), the cross section of the damping pore passage (10) is of a T-shaped structure, the damping pore passage (10) is arranged in the middle of the inside of the valve body (8), the bottom of the damping pore passage (10) is communicated with the bottom of the outer surface of the valve body (8) through a liquid inlet pore passage (9), and the top of the damping pore passage (10) is communicated with the top of the outer surface of the valve body (8) through a liquid outlet pore passage (11);

the go-stop adjusting structure comprises a valve core (7), the top end of the valve core (7) is rotatably installed in a cylinder (13), the top end face of the cylinder (13) is installed at one end of a valve rod (6), the valve rod (6) penetrates through the interior of a valve seat (5) in a sliding mode, and graphite powder (14) is filled between the middle of the valve rod (6) and the inner hole wall of the valve seat (5).

2. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: the bottom of the valve core (7) is of a conical structure, and the bottom of the valve core (7) is located in the middle position in the damping hole channel (10).

3. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: a rubber gasket (12) is arranged in a middle small-diameter pore passage opening in the damping pore passage (10), and the top end port of the damping pore passage (10) is in sealing threaded connection with a column hole structure at the bottom of the valve seat (5).

4. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: the valve seat (5) is internally connected with one end of the internal thread pipe (2) through a panel fixing nut (3) in a round port at the top part in a sealing threaded manner, and the inner wall of the internal thread pipe (2) is connected with the corresponding part of the valve rod (6) in a threaded manner.

5. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: handle (1) is installed on valve rod (6) top, and anti-skidding line has been seted up on handle (1) surface.

6. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: a gasket sheet (4) is arranged between the circular port at the top of the valve seat (5) and the port at one end of the internal threaded pipe (2), and a gap is reserved between the ring hole of the gasket sheet (4) and the annular surface of the valve rod (6).