Hard sealing high-temperature ball valve

Abstract

The utility model discloses a hard sealing high-temperature ball valve, which comprises a valve body and a valve rod, the valve body is formed by fixedly connecting a left valve body and a right valve body through a bolt, a valve cover is fixedly arranged at the top of the valve body, a valve cavity and a ball body are arranged in the valve body, the valve rod penetrates through the valve cover and is connected with the ball body, and fixed flanges and sealing parts are fixedly arranged on two sides of the valve body. Inner ring grooves are formed in the two sides in the valve body, valve seats are embedded in the inner ring grooves, one sides of the valve seats abut against the ball body, round grooves are formed in the other sides of the valve seats, elastic rings are clamped in the round grooves, spring grooves are formed in the positions, corresponding to the elastic rings, of the inner ring grooves, first elastic parts are arranged in the spring grooves, and second elastic parts are arranged in the first elastic parts. An annular inner groove is formed in the side, making contact with the ball body, of the valve seat, an annular sealing ring is arranged in the annular inner groove, and a second elastic part is arranged between the annular sealing ring and the elastic ball. The ball valve is long in service life, the sealing performance between the ball body and the valve body is high, the connecting strength of the ball valve and a connecting pipeline is high, and the sealing performance is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, more specifically relates to a kind of hard sealing high temperature ball valve. BACKGROUND

[0002] Ball valve is a kind of common valve, ball valve is mainly used to do cut-off, distribution and change the flow direction of medium in pipeline, it only needs to be closed tightly with 90 degrees rotation operation, the main features of ball valve are compact structure, reliable sealing, simple structure and other characteristics, and it is widely used in various industries.

[0003] In the prior art, the hard sealing high temperature wear-resistant ball valve with publication number CN217422260U is realized by the abutment of the valve seat and the valve body, the sealing between the ball and the valve body can effectively prevent medium leakage;However, the utility model still has the following problems: the hard sealing between the valve seat and the ball, although compared with soft sealing, the service life and sealing effect are better in high temperature environment, but due to the repeated rotation of the ball, the valve seat and the ball are prone to wear, which will cause the sealing effect of the ball valve to deteriorate, the service life is short, and the worn valve seat and ball need to be replaced regularly, in addition, when the ball valve is connected with the connecting pipeline, the flow of medium is easy to cause the connection to shake, which will cause the misalignment of the ball valve and the connecting pipeline, resulting in the decline of sealing performance, and the medium is easy to leak, therefore, the utility model provides a kind of hard sealing high temperature ball valve. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of hard sealing high temperature ball valve, the utility model service life is long, the sealing performance between ball and valve body is strong, and the connection strength of ball valve and connecting pipeline is high, and the sealing performance is strong.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of hard sealing high temperature ball valve, including valve body and valve stem, the valve body is fixedly connected by left valve body and right valve body by bolt, the valve body top is fixedly provided with valve cover, is provided with valve cavity and ball, the valve stem passes through valve cover and is connected with the ball, the valve body both sides are fixedly provided with fixed flange and sealing part, the valve body both sides are provided with inner ring groove, the inner ring groove is embedded with valve seat, the valve seat one side is abutted with the ball, the other side is provided with circular groove, the circular groove is clamped with elastic ring, the inner ring groove is provided with spring groove corresponding to the elastic ring, the spring groove is provided with elastic part one, the side of the valve seat and the ball contact is provided with annular inner groove, the annular inner groove is provided with annular sealing ring, the annular sealing ring and the elastic ball are provided with elastic part two.

[0007] By adopting the above technical scheme, the utility model has the following advantages:

[0008] The utility model discloses the setting of the sealing part, play the effect of further connecting valve body and connecting pipeline, can effectively prevent valve body and connecting pipeline swing deviation, lead to the condition of medium leakage occurs, effectively strengthen the connecting strength between valve body and connecting pipeline, thereby improve the sealing performance between both, the utility model discloses the setting of the elastic part one and the elastic ring, make the elastic force of elastic part one can extrude elastic ring drive valve seat to extrude the ball and make valve seat and ball always close contact, thereby effectively prevent medium leakage, effectively improve the sealing performance between valve seat and ball, the utility model discloses the setting of the elastic part two, play the effect of promoting annular sealing washer and ball close contact, make when valve seat wear, annular sealing washer can be in contact with ball continuously, realize effective sealing, can effectively prevent medium leakage, also prolong the service life of the utility model.

[0009] Further, the valve body is provided with a connecting pipeline on both sides, the end of the connecting pipeline is provided with a pipeline flange, the fixing flange and the pipeline flange are fixedly connected through a plurality of bolts, the sealing part is composed of two half rings, the half ring is provided with a snap ring groove for clamping the fixing flange and the pipeline flange, the fixing plate is fixedly arranged on both sides of the half ring, and the fixing plates are fixedly connected through a plurality of bolts.

[0010] By adopting the above technical scheme, the utility model has the following advantages:

[0011] The setting of the half ring enables the fixing flange and the pipeline flange to be clamped in the corresponding snap ring groove, thereby enhancing the connecting strength of the fixing flange and the pipeline flange and effectively preventing medium leakage.

[0012] Further, the fixing flange is provided with a sealing groove on the side away from the ball, and a sealing ring is embedded in the sealing groove.

[0013] By adopting the above technical scheme, the utility model has the following advantages:

[0014] The setting of the sealing groove and the sealing ring further enhances the sealing performance of the fixing flange and the pipeline flange and effectively prevents medium leakage.

[0015] Further, the valve rod upper end is fixedly connected with the handle, the valve cover upper end is provided with a packing groove on the side in contact with the valve rod, the packing groove is provided with a sealing packing, the sealing packing is provided with a sealing cover plate, and the sealing cover plate is fixedly connected with the corresponding valve cover through a plurality of bolts.

[0016] By adopting the above technical scheme, the utility model has the following advantages:

[0017] The setting of the sealing packing enhances the sealing performance between the valve cover and the valve rod and effectively prevents medium leakage.

[0018] Further, the elastic part one comprises high elastic springs and a stop plate, the high elastic springs are fixed in the spring grooves at equal intervals, and the stop plate is fixed to one end of the high elastic spring close to the elastic ring, and one end of the elastic ring close to the stop plate extends to the outside of the circular groove and abuts against the stop plate.

[0019] By adopting the above technical scheme, the utility model has the following advantages:

[0020] The high elastic spring and the stop plate are arranged, the elastic force of the high elastic spring can push the stop plate to extrude the elastic ring, the elastic force of the elastic ring and the elastic force of the high elastic spring can push the valve seat and the ball to be in close contact, the sealing performance between the valve seat and the ball is improved, and medium leakage can be effectively prevented.

[0021] Further, the elastic part two comprises inner springs, the annular inner groove is provided with an elastic groove in communication, one side of the elastic ring close to the elastic groove extends to the elastic groove, and a plurality of inner springs are arranged at equal intervals between the elastic ring and the annular sealing ring.

[0022] By adopting the above technical scheme, the utility model has the following advantages:

[0023] The inner spring is arranged, the elastic force of the inner spring and the elastic force of the elastic ring can push the annular sealing ring and the ball to be in close contact, the sealing performance between the valve seat and the ball is effectively improved, and medium leakage can be effectively prevented.

[0024] Further, a plurality of sliding grooves are provided on both sides of the elastic groove and both sides of one end of the annular inner groove close to the elastic groove, a sliding block is fixed to one side of the annular sealing ring close to the inner spring and corresponds to the position of the sliding groove, and the sliding block is movably connected by being clamped in the corresponding sliding groove.

[0025] By adopting the above technical scheme, the utility model has the following advantages:

[0026] The sliding groove and the sliding block are arranged, and the annular sealing ring can be effectively prevented from separating from the annular inner groove.

[0027] Further, annular fixing surfaces are fixed to the upper ends of the valve seats on the inner sides of the left valve body and the right valve body by a plurality of bolts, and the lower ends of the annular fixing surfaces abut against the corresponding valve seats.

[0028] By adopting the above technical scheme, the utility model has the following advantages:

[0029] The annular fixing plate is arranged, the valve seat is fixed, and the valve seat can be effectively prevented from separating from the inner ring groove. BRIEF DESCRIPTION OF DRAWINGS

[0030] The utility model is further illustrated below in combination with the drawings and examples.

[0031] Figure 1 It is a cross-sectional structure schematic view of the utility model;

[0032] Figure 2 It is a cross-sectional structure schematic view of the utility model sealing part;

[0033] Figure 3 It is a cross-sectional structure schematic view of the utility model Figure 1 It is an enlarged structure schematic view of A place in the utility model.

[0034] Reference signs: 1, valve body; 101, left valve body; 102, right valve body; 103, fixed flange; 2, connecting pipeline; 201, pipeline flange; 3, sealing groove; 301, sealing ring; 4, sealing part; 401, half ring; 402, snap ring groove; 403, fixed plate; 5, valve cover; 501, packing groove; 6, inner ring groove; 601, spring groove; 7, valve seat; 701, annular inner groove; 702, elastic groove; 703, sliding groove; 704, circular groove; 8, annular sealing ring; 801, sliding block; 9, valve stem; 901, handle; 10, sealing cover plate; 11, sealing packing; 12, ball; 13, inner spring; 14, abutting plate; 15, high-elasticity spring; 16, elastic ring; 17, annular fixed surface; 18, valve cavity. DETAILED DESCRIPTION

[0035] As Figures 1 to 3 shown, in the specific embodiment, a hard sealing high-temperature ball valve includes a valve body 1 and a valve stem 9, the valve body 1 is fixedly connected by bolts from a left valve body 101 and a right valve body 102, the valve body 1 is fixedly provided with a valve cover 5 at the top, and is internally provided with a valve cavity 18 and a ball 12, the valve stem 9 passes through the valve cover 5 and is connected with the ball 12, the valve body 1 is fixedly provided with a fixed flange 103 and a sealing part 4 at both sides, the valve body 1 is provided with an inner ring groove 6 at both sides, the inner ring groove 6 is embedded with a valve seat 7, one side of the valve seat 7 abuts against the ball 12, the other side is provided with a circular groove 704, the circular groove 704 is embedded with an elastic ring 16, the inner ring groove 6 is provided with a spring groove 601 corresponding to the elastic ring 16, the spring groove 601 is internally provided with an elastic part one, one side of the valve seat 7, which contacts the ball 12, is provided with an annular inner groove 701, the annular inner groove 701 is internally provided with an annular sealing ring 8, and the annular sealing ring 8 and the elastic ball are provided with an elastic part two.

[0036] Through the above setting, the sealing part 4 is arranged, the function of further connecting the valve body 1 and the connecting pipeline 2 is played, the shaking deviation of the valve body 1 and the connecting pipeline 2 can be effectively prevented, the medium leakage condition is caused, the connection strength between the valve body 1 and the connecting pipeline 2 is effectively strengthened, and therefore the sealing performance between the two is improved; the elastic part one and the elastic ring 16 are arranged, the elastic force of the elastic part one can extrude the elastic ring 16 to drive the valve seat 7 to extrude and abut against the sphere 12, the valve seat 7 and the sphere 12 are always in close contact, and therefore the medium leakage is effectively prevented, and the sealing performance between the valve seat 7 and the sphere 12 is effectively improved; the elastic part two is arranged, the function of driving the annular sealing ring 8 and the sphere 12 to be in close contact is played, the annular sealing ring 8 can be in continuous contact with the sphere 12 after the valve seat 7 is worn, effective sealing is realized, the medium leakage is effectively prevented, and the service life of the utility model is also prolonged.

[0037] As shown in Figures 1 to 2 The valve body 1 is provided with the connecting pipeline 2 on both sides, the end is provided with the pipeline flange 201, the fixed flange 103 and the pipeline flange 201 are fixedly connected through a plurality of bolts, the sealing part 4 is composed of the half ring 401 on both sides, the half ring 401 is provided with the snap ring groove 402 for clamping the fixed flange 103 and the pipeline flange 201, the fixed plate 403 is fixedly arranged on both sides of the half ring 401, and the fixed plate 403 is fixedly connected with the fixed plate 403 through a plurality of bolts; the side, away from the sphere 12, of the fixed flange 103 is provided with the sealing groove 3, and the sealing ring 301 is embedded in the sealing groove 3; the upper end of the valve rod 9 is fixedly connected with the handle 901, the side, in contact with the valve rod 9, of the valve cover 5 is provided with the packing groove 501, the sealing packing 11 is arranged in the packing groove 501, the upper end of the sealing packing 11 is provided with the sealing cover plate 10, and the sealing cover plate 10 is fixedly connected with the corresponding valve cover 5 through a plurality of bolts.

[0038] Through the above setting, the half ring 401 is arranged, the fixed flange 103 and the pipeline flange 201 can be clamped in the corresponding snap ring groove 402, the connection strength of the fixed flange 103 and the pipeline flange 201 is strengthened, and the medium leakage can be effectively prevented; the sealing groove 3 and the sealing ring 301 are arranged, the sealing performance of the fixed flange 103 and the pipeline flange 201 is further strengthened, and the medium leakage can be effectively prevented; the sealing packing 11 is arranged, the sealing performance between the valve cover 5 and the valve rod 9 is strengthened, and the medium leakage can be effectively prevented.

[0039] As shown in Figure 1 And Figure 3As shown, the elastic part one includes high elastic spring 15 and abutting plate 14, high elastic spring 15 is fixedly arranged in spring groove 601 at equal intervals, and abutting plate 14 is fixedly arranged at one end of high elastic spring 15 close to elastic ring 16, and one end of elastic ring 16 close to abutting plate 14 extends to the outside of circular groove 704 and abuts against abutting plate 14; the elastic part two includes inner spring 13, and elastic groove 702 is arranged in annular inner groove 701 in communication, one side of elastic ring 16 close to elastic groove 702 extends to elastic groove 702, and a plurality of inner springs 13 are arranged at equal intervals between elastic ring 16 and annular sealing ring 8; a plurality of sliding grooves 703 are arranged in communication at both sides of elastic groove 702 and one end of annular inner groove 701 close to elastic groove 702, sliding block 801 is fixedly arranged at a position corresponding to sliding groove 703 on one side of annular sealing ring 8 close to inner spring 13, and sliding block 801 is movably connected by being clamped in corresponding sliding groove 703; annular fixed surface 17 is fixedly arranged at the inner side of left valve body 101 and the inner side of right valve body 102 on the upper end of valve seat 7 through a plurality of bolts, and the lower end of annular fixed surface 17 abuts against corresponding valve seat 7.

[0040] Through the above setting, the high elastic spring 15 and the abutting plate 14 are arranged, so that the elastic force of the high elastic spring 15 can push the abutting plate 14 to extrude the elastic ring 16, and the elastic force of the elastic ring 16 and the elastic force of the high elastic spring 15 can push the valve seat 7 and the ball 12 to be in close contact, thereby improving the sealing performance between the valve seat 7 and the ball 12, and effectively preventing medium leakage; the inner spring 13 is arranged, so that the elastic force of the inner spring 13 and the elastic force of the elastic ring 16 can push the annular sealing ring 8 and the ball 12 to be in close contact, thereby effectively improving the sealing performance between the valve seat 7 and the ball 12, and effectively preventing medium leakage; the sliding groove 703 and the sliding block 801 are arranged, which can effectively prevent the annular sealing ring 8 from separating from the annular inner groove 701; the annular fixed plate 403 is arranged, which can effectively prevent the valve seat 7 from separating from the inner ring groove 6.

[0041] Working principle: when installing the connecting pipe 2 on both sides of the valve body 1, only need to first set the sealing ring 301 in the sealing groove 3, then fix and connect the pipe flange 201 of the connecting pipe 2 and the fixed flange 103 of the valve body 1 through bolts, then set the half ring 401 on the outside of the pipe flange 201 and the fixed flange 103, and fix and connect the fixed plate 403 and the fixed plate 403 through bolts, which further fix and connect the valve body 1 and the connecting pipe 2, when in use, rotate the handle 901 to make the ball 12 rotate and communicate with the flow passage of the valve body 1, so that the medium can flow, the valve seat 7 abuts against the ball 12 to play a hard sealing role, which can effectively prevent medium leakage, the high-elastic spring 15 and the abutting plate 14 extrude the elastic ring 16, so as to extrude the valve seat 7 and the ball 12 to realize sealing, when the ball 12 rotates, the valve seat 7 will be worn to a certain extent, and the arrangement of the high-elastic spring 15, the abutting plate 14, the elastic ring 16 and the inner spring 13 makes the side of the annular sealing ring 8 away from the ball 12 have a certain elasticity, when the ball 12 rotates, the annular sealing ring 8 will move inward along the edge of the ball 12, so the annular sealing ring 8 is not easy to wear, therefore, when the valve seat 7 is worn and has a certain gap with the ball 12, the elasticity of the high-elastic spring 15 and the elastic ring 16 can extrude the inner spring 13, so that the inner spring 13 extrudes the annular sealing ring 8 to continuously abut against the ball 12, which can effectively prevent medium leakage, when the annular sealing ring 8 is worn, the elasticity of the high-elastic spring 15, the elastic ring 16 and the inner spring 13 can still extrude the annular sealing ring 8 to continuously abut against the ball 12, which effectively prolongs the service life of the utility model and improves the sealing performance of the utility model, which can effectively prevent medium leakage.

[0042] The preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the utility model belongs to the protection scope of the utility model. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model are also regarded as the protection scope of the utility model.

Claims

1. A hard sealing high temperature ball valve, comprising a valve body (1) and a valve stem (9), the valve body (1) is fixedly connected by bolts with a left valve body (101) and a right valve body (102), a valve cover (5) is fixedly arranged on the top of the valve body (1), a valve cavity (18) and a ball (12) are arranged in the valve cover (5), the valve stem (9) passes through the valve cover (5) and is connected with the ball (12), characterized in that, The valve body (1) is fixed with a fixed flange (103) and a sealing part (4) on both sides, and is provided with an inner ring groove (6) on both sides, wherein a valve seat (7) is embedded in the inner ring groove (6), one side of the valve seat (7) abuts against the ball (12), and the other side is provided with a circular groove (704), wherein a elastic ring (16) is clamped in the circular groove (704), and a spring groove (601) is arranged at the position corresponding to the elastic ring (16) of the inner ring groove (6), wherein a elastic part one is arranged in the spring groove (601), and the side of the valve seat (7) in contact with the ball (12) is provided with an annular inner groove (701), wherein an annular sealing ring (8) is arranged in the annular inner groove (701), and the annular sealing ring (8) and the elastic ball are provided with a elastic part two.

2. A hard-sealed high-temperature ball valve according to claim 1, characterized in that The valve body (1) is provided with a connecting pipeline (2) on both sides, and the end is provided with a pipeline flange (201), the fixed flange (103) and the pipeline flange (201) are fixedly connected through a plurality of bolts, the sealing part (4) is composed of two half rings (401) on both sides, the half ring (401) is provided with a clamping ring groove (402) for clamping the fixed flange (103) and the pipeline flange (201), and the half ring (401) is fixedly provided with a fixed plate (403) on both sides, and the fixed plate (403) is fixedly connected with the fixed plate (403) through a plurality of bolts.

3. A hard-sealed high-temperature ball valve according to claim 2, characterized in that The fixed flange (103) is provided with a sealing groove (3) away from the ball (12) on one side, and the sealing groove (3) is embedded with a sealing ring (301).

4. A hard-sealed high-temperature ball valve according to claim 1, characterized in that, The upper end of the valve rod (9) is fixedly connected with a handle (901), the upper end of the valve cover (5) is in contact with the valve rod (9) on one side, and is provided with a packing groove (501), the packing groove (501) is provided with a sealing packing (11), the upper end of the sealing packing (11) is provided with a sealing cover plate (10), and the sealing cover plate (10) is fixedly connected with the corresponding valve cover (5) through a plurality of bolts.

5. A hard-sealed high-temperature ball valve according to claim 1, wherein The elastic part one includes a high elastic spring (15) and a stop plate (14), the high elastic spring (15) is fixedly arranged in the spring groove (601) at equal intervals, and the high elastic spring (15) is fixedly provided with the stop plate (14) at one end close to the elastic ring (16), and the elastic ring (16) extends to the outside of the circular groove (704) and abuts against the stop plate (14) at one end close to the stop plate (14).

6. A hard-sealed high-temperature ball valve according to claim 5, characterized in that The elastic part two includes an inner spring (13), the annular inner groove (701) is provided with an elastic groove (702) in communication, the elastic ring (16) extends into the elastic groove (702) at one side close to the elastic groove (702), and a plurality of inner springs (13) are arranged at equal intervals between the elastic ring (16) and the annular sealing ring (8).

7. A hard-sealed high-temperature ball valve according to claim 6, characterized in that Both sides of the elastic groove (702) and one end of the annular inner groove (701) near the elastic groove (702) are communicated with a plurality of sliding grooves (703), and the annular sealing ring (8) is fixedly provided with a sliding block (801) on the side near the inner spring (13) corresponding to the position of the sliding groove (703), and the sliding block (801) is movably connected by being clamped in the corresponding sliding groove (703).

8. A hard-sealed high-temperature ball valve according to claim 7, characterized in that The inner side of the left valve body (101) and the inner side of the right valve body (102) are both fixedly provided with an annular fixing surface (17) on the upper end of the valve seat (7) through a plurality of bolts, and the lower end of the annular fixing surface (17) abuts against the corresponding valve seat (7).

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