CN112857789B

CN112857789B - Valve fluid performance steady voltage testing arrangement

Info

Publication number: CN112857789B
Application number: CN202110139733.3A
Authority: CN
Inventors: 王坤; 尚玉来; 金克雨; 林继兴; 童先; 蔡承宇; 李勇; 魏爱平; 孔祥威
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2022-05-24
Anticipated expiration: 2041-02-01
Also published as: CN112857789A

Abstract

The invention discloses a valve fluid performance pressure stabilization testing device which comprises a water pool, at least one multistage centrifugal pump, a water collecting and distributing device, a pressure stabilization testing pipeline and a valve installation assembly to be tested, wherein the valve installation assembly to be tested comprises a support, a left clamping plate, a right clamping plate, a left linear driving assembly and a right linear driving assembly, the left clamping plate is arranged on the support in a sliding mode, the right clamping plate is arranged on the support in a sliding mode, the left linear driving assembly controls the left clamping plate to move left and right, the right linear driving assembly controls the right clamping plate to move left and right, under the action of the left linear driving assembly and the right linear driving assembly, the left clamping plate and the right clamping plate are respectively clamped on the left side and the right side of a valve to be tested, sealing structures are arranged on the left clamping plate and the right clamping plate, a left connector communicated with the left clamping plate is arranged on the left side of the left clamping plate, the left connector is connected with the pressure stabilization testing pipeline, a right connector is connected with the pressure stabilization testing pipeline. The valve to be tested is very convenient and rapid to disassemble and assemble, and the joints of the left clamping plate and the right clamping plate and the valve to be tested have good sealing performance.

Description

Valve fluid performance steady voltage testing arrangement

Technical Field

The invention relates to the technical field of valve testing, in particular to a valve fluid performance pressure stabilization testing device.

Background

The water pump control valve is a water pressure control valve, is suitable for pipelines of a water distribution pipe, the flow and the pressure of which need to be controlled, and can leave a factory only after the valve is assembled and a strict strength and tightness test is carried out.

Published patent CN208239068U discloses a valve fluid performance steady voltage testing arrangement, including the pond, at least one multistage centrifugal pump, water collection and diversion ware and steady voltage test pipeline, multistage centrifugal pump's water inlet is connected with the pipe that absorbs water that leads to the pond bottom, multistage centrifugal pump's a plurality of delivery ports are connected to water collection and diversion ware respectively, steady voltage test pipeline's one end is connected to water collection and diversion ware through the main valve of intaking, steady voltage test pipeline's the other end leads to the pond, steady voltage jar, first water intaking valve, first valve to be tested, first flowmeter and first return valve have set gradually along the water flow direction on the steady voltage test pipeline, the air inlet at steady voltage jar top is connected to the gas outlet of an air compressor machine, each equipment all is connected to the switch board. The device can export the test water of different flow through multistage centrifugal pump, cushions the test rivers through the surge tank, reduces turbulent flow disturbance, improves the accuracy and the reliability of test result data, carries out centralized control to each equipment through the switch board, and it is more convenient to operate. But in the use process, the valve to be tested is inconvenient to disassemble and assemble.

Disclosure of Invention

In view of the above, the present invention provides a device for testing pressure stabilization of fluid performance of a valve, so as to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme: a valve fluid performance voltage stabilization testing device comprises a pool, at least one multistage centrifugal pump, a water collecting and distributing device, a voltage stabilization testing pipeline and a valve installation assembly to be tested, wherein the valve installation assembly to be tested comprises a support, a left clamping plate, a right clamping plate, a left linear driving assembly and a right linear driving assembly, the left clamping plate is arranged on the support in a sliding mode, the right clamping plate is arranged on the right side of the left clamping plate, the left linear driving assembly controls the left clamping plate to move left and right on the support, the right linear driving assembly controls the right clamping plate to move left and right on the support, under the action of the left linear driving assembly and the right linear driving assembly, the left clamping plate and the right clamping plate are respectively clamped and pressed on the left side and the right side of a valve to be tested, sealing structures are arranged on the left clamping plate and the right clamping plate, and the left clamping plate and the right clamping plate are in sealing connection with the valve to be tested through the sealing structures, the left side of the left clamping plate is provided with a left joint communicated with the left clamping plate, the left joint is connected into the voltage stabilization test pipeline, the right side of the right clamping plate is provided with a right joint communicated with the right clamping plate, and the right joint is connected into the voltage stabilization test pipeline.

Further, the support includes the bottom plate, sets up the left socle at the left side top of bottom plate, set up the right branch frame and a plurality of connection at the right side top of bottom plate are in the left socle with the guide arm between the right branch frame, left splint with right splint all slide to be set up on the guide arm.

Further, the sealing structure comprises a first sealing ring, a sealing groove and a supporting frame, the sealing groove is arranged on the right side of the left clamping plate and the left side of the right clamping plate, the first sealing ring and the supporting frame are arranged in the sealing groove, the first sealing ring comprises a first tubular part, a first annular lip part, a second tubular part, a second annular lip part, a third tubular part, a third annular lip part and a fourth tubular part which are sequentially connected and arranged, a first annular groove is formed among the first tubular part, the first annular lip part and the second tubular part, a second annular groove is formed among the third tubular part, the third annular lip part and the fourth tubular part, a third annular groove is formed among the second tubular part, the second annular lip part and the third tubular part, and the periphery of the first tubular part is pressed on the outer side wall of the sealing groove, the inner periphery of the fourth tubular part is pressed against the inner side wall of the sealing groove, the first supporting pipe of the supporting frame is arranged in the first annular groove, the first annular lip is tightly pressed against the valve to be tested, the second supporting pipe of the supporting frame is arranged in the second annular groove, and the third annular lip is tightly pressed against the valve to be tested.

Furthermore, the support frame still includes the annular plate, first stay tube with the second stay tube is all connected on the annular plate, the second annular lip supports to press on the annular plate, be equipped with the second sealing washer in the third ring channel, the second sealing washer supports to press on the valve that awaits measuring.

Furthermore, the sealing structure further comprises a plurality of elastic rings, the elastic rings are limited in the sealing groove by the annular plate, and the elastic force of the elastic rings enables the supporting frame to be tightly pressed on the first sealing ring.

Furthermore, the sealing structure further comprises a third sealing ring, a first inner annular groove is formed in the inner side wall of the sealing groove, the third sealing ring is arranged in the first inner annular groove, and the inner periphery of the third sealing ring is pressed against the inner periphery of the fourth tubular part.

Furthermore, the free end of the fourth tubular part is connected with an annular convex lip, a second inner annular groove is further formed in the inner side wall of the sealing groove, an open ring is installed in the second inner annular groove, a butterfly spring is arranged between the open ring and the annular plate, and under the elastic force action of the butterfly spring, the open ring presses against the annular convex lip, so that the annular convex lip tightly presses against the inner wall of the second inner annular groove.

Furthermore, a plurality of pairs of limiting blocks are arranged in the sealing groove, the limiting blocks correspond to the elastic rings, the limiting blocks are symmetrically arranged on two corresponding sides of the elastic rings, and limiting grooves formed in the elastic rings are matched with the protruding parts formed in the limiting blocks.

Furthermore, an annular pressure plate is further arranged in the third annular groove, one side of the annular pressure plate is pressed against the second annular lip, and the other side of the annular pressure plate is pressed against the second sealing ring.

Furthermore, the left cylinder of the left linear driving assembly is arranged at the top of the left support, the piston rod of the left cylinder is connected with the left clamping plate, the right cylinder of the right linear driving assembly is arranged at the top of the right support, and the piston rod of the right cylinder is connected with the right clamping plate.

The technical scheme can show that the invention has the advantages that: when the valve to be tested is mounted, the valve to be tested is placed on the cushion block, then the left air cylinder and the right air cylinder are started simultaneously to push the left clamping plate and the right clamping plate to approach the valve to be tested until the left clamping plate and the right clamping plate are tightly clamped on the left side and the right side of the valve to be tested respectively, the valve to be tested is reliably mounted on the pressure stabilizing test pipeline, when the pressure stabilizing test pipeline is dismounted, the left air cylinder and the right air cylinder are started to drive the left clamping plate and the right clamping plate to be far away from the valve to be tested, the valve to be tested can be dismounted, and the valve to be tested is quite convenient and rapid to dismount; and the sealing structure enables the joints of the left clamping plate and the right clamping plate and the valve to be tested to have good sealing performance, and the testing accuracy is guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, 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 schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a schematic structural diagram of the first seal ring of the present invention.

Fig. 4 is a schematic structural view of the elastic ring and the limiting block of the present invention.

List of reference numerals: the device comprises a bracket 1, a bottom plate 11, a left bracket 12, a right bracket 13, a guide rod 14, a cushion block 15, a left clamp plate 2, a left air cylinder 21, a left joint 22, a left connecting pipe 23, a right clamp plate 3, a right air cylinder 31, a right joint 32, a right connecting pipe 33, a first sealing ring 4, a first tubular part 41, a first annular lip 42, a second tubular part 43, a second annular lip 44, a third tubular part 45, a third annular lip 46, a fourth tubular part 47, an annular convex lip 48, a first annular groove 491, a second annular groove 492, a third annular groove 493, a support frame 5, a first support pipe 51, a second support pipe 52, an annular plate 53, an elastic ring 54, a limiting groove 541, a limiting block 55, a convex part 551, a second sealing ring 6, an annular pressure plate 61, a third sealing ring 7, a split ring 8, a butterfly spring 81, a sealing groove 9, a first inner annular groove 91, a second inner annular groove 92 and a valve 10 to be measured.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Referring to fig. 1 to 4, a valve fluid performance pressure stabilizing test device as shown in fig. 1 comprises a water tank, at least one multistage centrifugal pump, a water collecting and distributing device, a pressure stabilizing test pipeline and two sets of valve installation components to be tested, wherein the valve installation components to be tested comprise a bracket 1, a left clamping plate 2 arranged on the bracket 1 in a left-right sliding manner, a right clamping plate 3 arranged on the bracket 1 in a left-right sliding manner and positioned on the right side of the left clamping plate 2, a left linear driving component for controlling the left clamping plate 2 to move left and right on the bracket 1 and a right linear driving component for controlling the right clamping plate 3 to move left and right on the bracket 1, under the action of the left linear driving component and the right linear driving component, the left clamping plate 2 and the right clamping plate 3 can be respectively clamped and pressed on the left side and the right side of a valve 10 to be tested, sealing structures are arranged on the left clamping plate 2 and the right clamping plate 3, the left clamping plate 2 and the right clamping plate 3 are hermetically connected with the valve 10 to be tested through the sealing structures, the left side of the left splint 2 is provided with a left connector 22 communicated with the left splint, the left connector 22 is connected into a voltage stabilization test pipeline through a left connecting pipe 23, the right side of the right splint 3 is provided with a right connector 32 communicated with the right splint, the right connector 32 is connected into the voltage stabilization test pipeline through a right connecting pipe 33, and the left connecting pipe 23 and the right connecting pipe 33 are both flexible pipes.

As shown in fig. 1, the bracket 1 includes a bottom plate 11, a left bracket 12 disposed at the left top of the bottom plate 11, a right bracket 13 disposed at the right top of the bottom plate 11, and a plurality of guide rods 14 connected between the left bracket 12 and the right bracket 13, wherein the left clamping plate 2 and the right clamping plate 3 are both slidably disposed on the guide rods 14, a cushion block 15 is disposed on the bottom plate 11, a left cylinder 21 of a left linear driving assembly is disposed at the top of the left bracket 12, a piston rod of the left cylinder 21 is connected with the left top of the left clamping plate 2, a right cylinder 31 of a right linear driving assembly is disposed at the top of the right bracket 13, and a piston rod of the right cylinder 31 is connected with the right top of the right clamping plate 3.

As shown in fig. 2 and 3, the sealing structure includes a first sealing ring 4, a sealing groove 9, a support frame 5 and a plurality of elastic rings 54, the sealing groove 9 is provided on both the right side of the left clamping plate 2 and the left side of the right clamping plate 3, the first sealing ring 4 includes a first tubular portion 41, a first annular lip 42, a second tubular portion 43, a second annular lip 44, a third tubular portion 45, a third annular lip 46 and a fourth tubular portion 47 which are connected in sequence, a first annular groove 491 is formed between the first tubular portion 41, the first annular lip 42 and the second tubular portion 43, a second annular groove 492 is formed between the third tubular portion 45, the third annular lip 46 and the fourth tubular portion 47, a third annular groove 493 is formed between the second tubular portion 43, the second annular lip 44 and the third tubular portion 45, the outer periphery of the first tubular portion 41 is tightly pressed against the outer side wall of the sealing groove 9, the inner periphery of the fourth tubular portion 47 is tightly pressed against the inner side wall of the sealing groove 9, the support frame 5 comprises an annular plate 53, a first support tube 51 and a second support tube 52, the first support tube 51 and the second support tube 52 are both connected on the annular plate 53, the first support tube 51 is located at the radial outer side of the second support tube 52, the first support tube 51 is arranged in the first annular groove 491, the outer periphery of the first support tube 51 is pressed against the inner periphery of the first tubular portion 41, the inner periphery of the first support tube 51 is pressed against the outer periphery of the second tubular portion 43, the second support tube 52 is arranged in the second annular groove 492, the outer periphery of the second support tube 52 is pressed against the inner periphery of the third tubular portion 45, the inner periphery of the second support tube 52 is pressed against the outer periphery of the fourth tubular portion 47, a plurality of elastic rings 54 are uniformly distributed in the sealing groove 9, one side of the elastic ring 54 is pressed against the inner end face of the sealing groove 9, the other side of the elastic ring 54 is pressed against the annular plate 53, and the valve 10 to be tested is clamped between the left clamp plate 2 and the right clamp plate 3, the elastic ring 54 is in an elastic deformation state, and the supporting frame 5 tightly abuts against the first sealing ring 4 under the elastic force of the elastic ring 54, so that the free end of the first supporting tube 51 abuts against the first annular lip 42, the first annular lip 42 tightly abuts against the valve 10 to be tested, the free end of the second supporting tube 52 abuts against the third annular lip 46, and the third annular lip 46 tightly abuts against the valve 10 to be tested.

As shown in fig. 2 and 3, a second sealing ring 6 and an annular pressure plate 61 are arranged in the third annular groove 493, the annular pressure plate 61 is located between the second annular lip portion 44 and the second sealing ring 6, after the valve 10 to be measured is clamped between the left clamping plate 2 and the right clamping plate 3, the second annular lip portion 44 is pressed against the annular plate 53, and the second sealing ring 6 is pressed against the valve 10 to be measured, so that the sealing effect is improved.

As shown in fig. 2, a first inner annular groove 91 is provided on the inner sidewall of the sealing groove 9, a third sealing ring 7 is provided in the first inner annular groove 91, and the inner periphery of the third sealing ring 7 is tightly pressed against the inner periphery of the fourth tubular portion 47, so that the sealing effect can be further improved.

As shown in fig. 2 and 3, the free end of the fourth tubular portion 47 is connected with an annular protruding lip 48, a second inner annular groove 92 is further disposed on the inner side wall of the sealing groove 9, a split ring 8 is mounted in the second inner annular groove 92, a belleville spring 81 is disposed between the split ring 8 and the annular plate 53, and under the elastic force of the belleville spring 81, the split ring 8 presses against the annular protruding lip 48, so that the annular protruding lip 48 tightly presses against the inner wall of the second inner annular groove 92, and the sealing effect is further improved.

As shown in fig. 2 and 4, a plurality of pairs of limiting blocks 55 are disposed in the sealing groove 9, the plurality of pairs of limiting blocks 55 correspond to the plurality of elastic rings 54, each pair of limiting blocks 55 are symmetrically disposed on two sides of the corresponding elastic ring 54, two sides of each elastic ring 54 respectively abut against the corresponding limiting block 55, the elastic ring 54 is symmetrically provided with a pair of limiting grooves 541, the pair of limiting grooves 541 are respectively matched with the protrusions 551 disposed on the corresponding limiting blocks 55, the positions of the elastic rings 54 can be limited by the limiting blocks 55, and the elastic rings 54 are prevented from moving freely in the sealing groove 9.

As shown in fig. 1, when installing the valve 10 to be tested, place the valve 10 to be tested on the cushion 15, then the left cylinder 21 and the right cylinder 31 are started simultaneously to push the left splint 2 and the right splint 3 to approach the valve 10 to be tested, until the left splint 2 and the right splint 3 are tightly clamped on the left and right sides of the valve 10 to be tested respectively, at this moment, the valve 10 to be tested is reliably installed on the pressure stabilizing test pipeline, when the pressure stabilizing test pipeline is disassembled, the left cylinder 21 and the right cylinder 31 are started to drive the left splint 2 and the right splint 3 to be far away from the valve 10 to be tested, the valve 10 to be tested can be disassembled, the disassembly and assembly of the valve 10 to be tested are very convenient and rapid, and the sealing structure is arranged so that the joints of the left splint 2 and the right splint 3 and the valve 10 to be tested have good sealing performance, thereby ensuring the testing accuracy.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve fluid performance pressure stabilizing test device comprises a pool, at least one multistage centrifugal pump, a water collecting and distributing device and a pressure stabilizing test pipeline, and is characterized by further comprising a valve installation assembly to be tested, wherein the valve installation assembly to be tested comprises a support (1), a left clamping plate (2) arranged on the support (1) in a sliding mode, a right clamping plate (3) arranged on the support (1) in a sliding mode and located on the right side of the left clamping plate (2), a left linear driving assembly for controlling the left clamping plate (2) to move left and right on the support (1), and a right linear driving assembly for controlling the right clamping plate (3) to move left and right on the support (1), and under the action of the left linear driving assembly and the right linear driving assembly, the left clamping plate (2) and the right clamping plate (3) are respectively clamped on the left side and the right side of a valve (10) to be tested, the left clamping plate (2) and the right clamping plate (3) are respectively provided with a sealing structure, the left clamping plate (2) and the right clamping plate (3) are connected with the valve to be tested (10) in a sealing mode through the sealing structures, a left connector (22) communicated with the left clamping plate (2) is arranged on the left side of the left clamping plate (2), the left connector (22) is connected into the pressure stabilizing test pipeline, a right connector (32) communicated with the right clamping plate (3) is arranged on the right side of the right clamping plate, and the right connector (32) is connected into the pressure stabilizing test pipeline; the support (1) comprises a bottom plate (11), a left support (12) arranged at the top of the left side of the bottom plate (11), a right support (13) arranged at the top of the right side of the bottom plate (11) and a plurality of guide rods (14) connected between the left support (12) and the right support (13), and the left clamping plate (2) and the right clamping plate (3) are arranged on the guide rods (14) in a sliding manner; the sealing structure comprises a first sealing ring (4), a sealing groove (9) and a supporting frame (5), wherein the sealing groove (9) is formed in the right side of the left clamping plate (2) and the left side of the right clamping plate (3), the first sealing ring (4) and the supporting frame (5) are arranged in the sealing groove (9), the first sealing ring (4) comprises a first tubular part (41), a first annular lip part (42), a second tubular part (43), a second annular lip part (44), a third tubular part (45), a third annular lip part (46) and a fourth tubular part (47) which are sequentially connected, a first annular groove (491) is formed among the first tubular part (41), the first annular lip part (42) and the second tubular part (43), and a second annular groove (492) is formed among the third tubular part (45), the third annular lip part (46) and the fourth tubular part (47), a third annular groove (493) is formed among the second tubular part (43), the second annular lip (44) and the third tubular part (45), the outer periphery of the first tubular part (41) is pressed against the outer side wall of the sealing groove (9), the inner periphery of the fourth tubular part (47) is pressed against the inner side wall of the sealing groove (9), a first supporting pipe (51) of the supporting frame (5) is arranged in the first annular groove (491), the first annular lip (42) is tightly pressed against the valve to be tested (10), a second supporting pipe (52) of the supporting frame (5) is arranged in the second annular groove (492), and the third annular lip (46) is tightly pressed against the valve to be tested (10); the supporting frame (5) further comprises an annular plate (53), the first supporting tube (51) and the second supporting tube (52) are connected to the annular plate (53), the second annular lip (44) is pressed against the annular plate (53), a second sealing ring (6) is arranged in the third annular groove (493), and the second sealing ring (6) is pressed against the valve to be tested (10); the sealing structure further comprises a plurality of elastic rings (54), the elastic rings (54) are limited in the sealing groove (9) by the annular plate (53), and the elastic force of the elastic rings (54) enables the supporting frame (5) to be tightly pressed on the first sealing ring (4); the sealing structure further comprises a third sealing ring (7), a first inner annular groove (91) is formed in the inner side wall of the sealing groove (9), the third sealing ring (7) is arranged in the first inner annular groove (91), and the inner periphery of the third sealing ring (7) is pressed against the inner periphery of the fourth tubular portion (47).

2. The valve fluid performance pressure stabilization testing device according to claim 1, wherein an annular convex lip (48) is connected to a free end of the fourth tubular portion (47), a second inner annular groove (92) is further formed in the inner side wall of the sealing groove (9), an open ring (8) is installed in the second inner annular groove (92), a belleville spring (81) is arranged between the open ring (8) and the annular plate (53), and under the elastic force action of the belleville spring (81), the open ring (8) presses against the annular convex lip (48), so that the annular convex lip (48) tightly presses against the inner wall of the second inner annular groove (92).

3. The valve fluid performance pressure stabilization testing device according to claim 1, wherein a plurality of pairs of limiting blocks (55) are arranged in the sealing groove (9), the plurality of pairs of limiting blocks (55) correspond to the plurality of elastic rings (54), the pair of limiting blocks (55) are symmetrically arranged on two sides of the corresponding elastic rings (54), and limiting grooves (541) arranged on the elastic rings (54) are matched with protrusions (551) arranged on the limiting blocks (55).

4. The valve fluid performance pressure stabilization testing device according to claim 1, wherein an annular pressure plate (61) is further arranged in the third annular groove (493), one side of the annular pressure plate (61) is pressed against the second annular lip (44), and the other side of the annular pressure plate (61) is pressed against the second sealing ring (6).

5. The valve fluid performance pressure stabilization testing device according to claim 1, wherein a left air cylinder (21) of the left linear driving assembly is arranged at the top of the left bracket (12), a piston rod of the left air cylinder (21) is connected with the left clamping plate (2), a right air cylinder (31) of the right linear driving assembly is arranged at the top of the right bracket (13), and a piston rod of the right air cylinder (31) is connected with the right clamping plate (3).