CN213017959U

CN213017959U - Power plant is with good high temperature high pressure valve of leakproofness

Info

Publication number: CN213017959U
Application number: CN202021341048.6U
Authority: CN
Inventors: 唐千惠; 吕清鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-20
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to a high temperature and high pressure valve with good sealing performance for a power plant, which comprises a valve body, wherein the valve body comprises a first pipe body, a valve rod and a second pipe body, the valve rod is arranged at the upper end of the first pipe body, a hollow sleeve is arranged at the upper end of the valve body, the valve rod is arranged at the inner side of the hollow sleeve, a sealing cover is in threaded connection with the upper end of the hollow sleeve, the sealing cover tightly presses a sealing gasket on the valve rod, a groove seat is arranged on the second pipe body, the groove seat is provided with a cylindrical holding space, a screw rod is fixed on the groove seat, the screw rod is in threaded connection with a thread sleeve, the thread sleeve blocks a sealing ring, the inner side surface of the sealing ring is tightly attached to the joint of the first pipe body and the second pipe body, the thread sleeve and the sealing ring are positioned in the holding space, the utility model has, to improve the sealing property.

Description

Power plant is with good high temperature high pressure valve of leakproofness

Technical Field

The utility model relates to a power plant is with good high temperature high pressure valve of leakproofness belongs to high temperature high pressure valve technical field.

Background

The high temperature and high pressure valve is one of the most important safety accessories of pressure container, and is used to open the valve automatically by the medium pressure when the pressure in the container exceeds a certain value, so that the valve can discharge a certain amount of medium quickly. When the pressure in the container is reduced to an allowable value, the high-temperature safety valve is automatically closed, the pressure in the container is always lower than the upper limit of the allowable pressure by the high-temperature safety valve, and possible accidents caused by overpressure are automatically prevented by the high-temperature valve.

The high-temperature and high-pressure valve is used in a power plant, the requirement on the sealing performance of the high-temperature and high-pressure valve is high, the sealing performance of the high-temperature and high-pressure valve at present is insufficient, and the sealing performance of a valve rod and an interface is required to be improved, so that the further improvement is required at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves overcomes current defect, provides a power plant is with good high temperature high pressure valve of leakproofness, can seal the valve rod position to the junction to the different parts of valve body seals, with the improvement leakproofness, can effectively solve the problem in the background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a power plant is with good high temperature high pressure valve of leakproofness, includes the valve body, the valve body includes first body, valve rod and second body, the valve rod sets up in first body upper end, the cavity cover is installed to the valve body upper end, the valve rod sets up in the inboard of cavity cover, threaded connection has sealed lid on the cavity cover, sealed lid compresses tightly sealed pad on the valve rod, the recess seat is installed to the second body, the recess seat has the accommodation space of cylindricality, the recess seat is fixed with the screw rod, screw rod threaded connection has the thread bush, the thread bush blocks the sealing washer, tight first body and second body junction are pasted to the medial surface of sealing washer, thread bush, sealing washer are located the accommodation space.

Further, the sealing cover includes a handle at an upper end, and a surface portion of the handle is made of an elastic material.

Further, the sealing gasket further comprises a lower end matching sleeve, and the inner side surface of the matching sleeve is attached to the surface of the valve rod.

Further, the groove seat is provided with an object placing groove, and the screw rod is arranged in the object placing groove.

Further, a first pressure gauge is installed to the first pipe body, and a second pressure gauge is installed to the second pipe body.

The sealing ring is provided with a first air passage, the first air passage points to the joint of the first pipe body and the second pipe body, the sealing ring further comprises a sealing sleeve at the lower end, the sealing sleeve is provided with a second air passage communicated with the first air passage, the groove seat further comprises a water storage tank, the lower end of the sealing sleeve extends into the water of the water storage tank, the groove seat is made of transparent materials, and the groove seat is made of transparent materials.

The utility model discloses beneficial effect: the utility model relates to a high temperature high pressure valve with good sealing performance for power plant, through being provided with the valve body, the valve rod, the hollow sleeve, the sealed lid, the sealed pad, the cooperation cover, after the valve rod is closed, go into the hollow sleeve with sealed pad card, make sealed pad, the cooperation cover is connected with the valve rod, seal the valve rod, manual control handle is rotatory to make the sealed lid pack into the hollow sleeve, the sealed lid compresses tightly the sealed pad, through first body, first pressure gauge, the second body, the recess seat, the thread bush, the sealing washer, the seal cover, according to the index of first pressure gauge and second pressure gauge, judge the sealing performance of first body and second body, pack the seal cover, the sealing washer into the accommodation space of recess seat, manually rotate the thread bush under the support of screw rod, make the thread bush paste tight sealing washer, improve the sealing to the first body and second body kneck, and judging whether leakage occurs according to whether bubbles exist in the water storage tank.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a sectional view of the high-temperature and high-pressure valve with good sealing performance for a power plant.

Fig. 2 is an enlarged schematic view of a region a in fig. 1 of the high-temperature and high-pressure valve with good sealing performance for a power plant.

Fig. 3 is a schematic view of the groove seat of the high-temperature and high-pressure valve with good sealing performance for power plant of the present invention.

Reference numbers in the figures: 1. a valve body; 11. a first tube 12, a first pressure gauge; 13. a second tube body; 14. a second pressure gauge; 2. a valve stem; 3. hollow sleeve; 4. a sealing cover; 41. a handle; 5. a gasket; 51. a fitting sleeve; 6. a groove seat; 61. a material placing groove; 62. an accommodating space; 63. a water storage tank; 7. a screw; 8. a threaded sleeve; 9. a seal ring; 91. a first air passage; 93. sealing sleeves; 94. a second air passage.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-3, a high-temperature and high-pressure valve with good sealing performance for a power plant comprises a valve body 1, wherein the valve body 1 is a high-temperature and high-pressure valve, the valve body 1 comprises a first pipe body 11, a valve rod 2 and a second pipe body 13, the first pipe body 11, the valve rod 2 and the second pipe body 13 are part of the valve body 1, the valve rod 2 is arranged at the upper end of the first pipe body 11, a hollow sleeve 3 is arranged at the upper end of the valve body 1, the valve body 1 and the hollow sleeve 3 are combined by welding, the valve rod 2 is arranged at the inner side of the hollow sleeve 3, a sealing cover 4 is in threaded connection with the upper end of the hollow sleeve 3, an internal thread is arranged at the upper end of the hollow sleeve 3 and matched with an external thread of the sealing cover 4, the sealing cover 4 tightly presses a sealing gasket 5 on the valve rod 2, the lower surface of the sealing cover 4 is tightly contacted with the upper surface of the sealing gasket 5, the groove seat 6 is fixed with a screw 7, the screw 7 and the groove seat 6 are combined by welding, the screw 7 is in threaded connection with a threaded sleeve 8, the distance between the screw 7 and a sealing ring 9 is larger than the length of the threaded sleeve 8, the threaded sleeve 8 is not easy to separate from the screw 7, the sealing ring 9 is clamped by the threaded sleeve 8, at least two groups of threaded sleeves 8 and sealing rings 9 are arranged, one end, far away from the screw 7, of each threaded sleeve 8 is tightly attached to the outer annular surface of the sealing ring 9, the inner side surface of the sealing ring 9 is tightly attached to the joint of the first pipe body 11 and the second pipe body 13, the joint of the first pipe body 11 and the second pipe body 13 is connected through bolts, the valve body 1 still has the possibility of leakage after being manufactured, the sealing ring 9 is.

The sealed lid 4 includes the handle 41 of upper end, and handle 41 has two at least, makes things convenient for people's dismouting sealed lid 4, and the surface part of handle 41 adopts elastic material to make, and sealed 5 still includes lower extreme cooperation cover 51, and the medial surface of cooperation cover 51 is laminated with the surface of valve rod 2, and cooperation cover 51 surface shape is similar with valve rod 2 surface shape or the same, makes cooperation cover 51 can paste tight valve rod 2 well.

The groove seat 6 is provided with an object placing groove 61, the object placing groove 61 is of an annular groove structure, the screw 7 is arranged in the object placing groove 61, the first pipe body 11 is provided with the first pressure gauge 12, the first pressure gauge 12 is provided with an index meter, the second pipe body 13 is provided with the second pressure gauge 14, and the second pressure gauge 14 is provided with the index meter.

Sealing washer 9 has first air flue 91, sealing washer 9 is the annular structure, the directional first body 11 of first air flue 91 and the 13 junction of second body, first air flue 91 is the annular structure, link up sealing washer 9's interior arcwall face and lower extreme annular face, sealing washer 9 still includes seal cover 93 of lower extreme, seal cover 93 has the second air flue 94 with first air flue 91 intercommunication, second air flue 94 is the annular structure, link up seal cover 93 last annular face and lower annular face, groove seat 6 still includes aqua storage tank 63, aqua storage tank 63 is the annular structure, the aquatic of aqua storage tank 63 is stretched into to seal cover 93 lower extreme, groove seat 6 adopts transparent material to make.

The utility model discloses the theory of operation: connect relevant equipment with valve body 1, valve rod 2 is closing the back, in going into hollow cover 3 with sealed 5 card, make sealed 5, cooperation cover 51 is connected with valve rod 2, seal valve rod 2, manual control handle 41 is rotatory to make sealed 4 packing into hollow cover 3, sealed 4 compresses tightly sealed 5, pack seal cover 93, sealing washer 9 into in the accommodation space 62 of recess seat 6, manual rotatory thread bush 7 under the support of screw rod 7, make thread bush 7 paste tight sealing washer 9, improve the sealed of first body 11 with the second body 13 kneck.

The tightness of the first pipe 11 and the second pipe 13 is determined according to the indexes of the first pressure gauge 12 and the second pressure gauge 14, when the interface between the first pipe 11 and the second pipe 13 leaks, the gas enters the second air passage 94 through the first air passage 91, bubbles are generated in the water discharged into the water storage tank 63, and whether the leakage occurs is determined according to whether the water storage tank 63 has bubbles.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a power plant is with good high temperature high pressure valve of leakproofness which characterized in that: comprises a valve body (1), wherein the valve body (1) comprises a first pipe body (11), a valve rod (2) and a second pipe body (13), the valve rod (2) is arranged at the upper end of the first pipe body (11), a hollow sleeve (3) is arranged at the upper end of the valve body (1), the valve rod (2) is arranged at the inner side of the hollow sleeve (3), a sealing cover (4) is in threaded connection with the upper end of the hollow sleeve (3), the sealing cover (4) tightly presses a sealing gasket (5) on the valve rod (2), a groove seat (6) is arranged on the second pipe body (13), the groove seat (6) is provided with a cylindrical accommodating space (62), a screw rod (7) is fixed on the groove seat (6), the screw rod (7) is in threaded connection with a threaded sleeve (8), the threaded sleeve (8) blocks a sealing ring (9), and the inner side face of the sealing ring (9) tightly adheres to the joint of the first pipe body (11) and the, the threaded sleeve (8) and the sealing ring (9) are located in the accommodating space (62).

2. The high-temperature and high-pressure valve with good sealing performance for the power plant according to claim 1, is characterized in that: the sealing cover (4) comprises a handle (41) at the upper end, and the surface part of the handle (41) is made of elastic materials.

3. The high-temperature and high-pressure valve with good sealing performance for the power plant according to claim 1, is characterized in that: the sealing gasket (5) further comprises a lower end matching sleeve (51), and the inner side surface of the matching sleeve (51) is attached to the surface of the valve rod (2).

4. The high-temperature and high-pressure valve with good sealing performance for the power plant according to claim 1, is characterized in that: the groove seat (6) is provided with an object placing groove (61), and the screw rod (7) is arranged in the object placing groove (61).

5. The high-temperature and high-pressure valve with good sealing performance for the power plant according to claim 1, is characterized in that: first pressure gauge (12) are installed to first body (11), second pressure gauge (14) are installed to second body (13).

6. The high-temperature and high-pressure valve with good sealing performance for the power plant according to claim 1, is characterized in that: the sealing ring (9) is provided with a first air passage (91), the first air passage (91) points to the joint of the first pipe body (11) and the second pipe body (13), the sealing ring (9) further comprises a sealing sleeve (93) at the lower end, the sealing sleeve (93) is provided with a second air passage (94) communicated with the first air passage (91), the groove seat (6) further comprises a water storage tank (63), the lower end of the sealing sleeve (93) extends into the water in the water storage tank (63), and the groove seat (6) is made of transparent materials.