CN213956677U

CN213956677U - Low temperature combination formula air-vent valve performance check out test set

Info

Publication number: CN213956677U
Application number: CN202022920440.2U
Authority: CN
Inventors: 赵学刚; 唐东; 赵旺喜
Original assignee: Kunshan Xinxinpeng Machinery Co ltd
Current assignee: Kunshan Xinxinpeng Machinery Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-13
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a performance detection device for a low-temperature combined pressure regulating valve, which comprises a water tank and a sealing installation mechanism; a water tank: a lifting driving box is arranged on the inner rear side of the lifting driving box, a screw rod is rotatably connected to the inner front side of the lifting driving box through a bearing, a motor output shaft arranged on the front side of the upper surface of the lifting driving box is fixedly connected with the top end of the screw rod, T-shaped sliding strips are symmetrically arranged on the left inner wall and the right inner wall of the lifting driving box, the screw rod is in threaded connection with a screw hole in the middle of a guide plate, T-shaped sliding grooves in the left end and the right end of the guide plate are respectively in sliding connection with the corresponding T-shaped sliding strips, and vertical rods which are bilaterally symmetrical are arranged on the upper surface of the guide plate; this low temperature combination formula air-vent valve performance check out test set can accomplish the gas tightness detection achievement of low temperature combination formula air-vent valve fast, can guarantee the leakproofness of low temperature combination formula air-vent valve junction, prevents that this junction from appearing the seepage in the follow-up testing process and influencing detection quality, overall structure is stable, and the security is higher.

Description

Low temperature combination formula air-vent valve performance check out test set

Technical Field

The utility model relates to a research and development technical field of low temperature combination formula air-vent valve specifically is a low temperature combination formula air-vent valve performance check out test set.

Background

The low-temperature valve comprises a low-temperature ball valve, a low-temperature gate valve, a low-temperature stop valve, a low-temperature safety valve, a low-temperature check valve, a low-temperature butterfly valve, a low-temperature needle valve, a low-temperature throttle valve, a low-temperature pressure regulating valve and the like, and is mainly used for ethylene, liquefied natural gas devices, natural gas LPG LNG storage tanks, receiving bases and satellite stations, air separation equipment, petrochemical engineering tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide low-temperature storage tanks and tank cars, pressure swing adsorption oxygen production devices and the like. Because most of the media conveyed by the low-temperature valve are dangerous, in order to prevent the conveyed media from leaking to cause harm to personnel, the sealing performance detection work needs to be carried out on the low-temperature valve after the low-temperature valve is manufactured. The low-temperature combined pressure regulating valve is formed by combining a plurality of confidential components, and the leakage of the low-temperature combined pressure regulating valve is easy to occur due to the combined structure of the low-temperature combined pressure regulating valve, so that the sealing performance detection work of the low-temperature combined pressure regulating valve is emphasized. The conventional performance detection equipment for the low-temperature combined pressure regulating valve is complex in structure, cannot quickly detect the air tightness of the low-temperature combined pressure regulating valve, cannot ensure the tightness of the joint of the low-temperature combined pressure regulating valve, and is easy to influence the actual detection quality.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a low temperature combination formula air-vent valve performance check out test set, simple structure is practical, can accomplish the gas tightness detection achievement of low temperature combination formula air-vent valve fast, can guarantee the leakproofness of low temperature combination formula air-vent valve junction, prevents that this junction from appearing the seepage in the follow-up testing process and influencing detection quality, overall structure is stable, and the security is higher, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a performance detection device for a low-temperature combined pressure regulating valve comprises a water tank and a sealing installation mechanism;

a water tank: a lifting driving box is arranged on the inner rear side of the lifting driving box, a screw rod is rotatably connected to the inner front side of the lifting driving box through a bearing, a motor output shaft arranged on the front side of the upper surface of the lifting driving box is fixedly connected with the top end of the screw rod, T-shaped sliding strips are symmetrically arranged on the left inner wall and the right inner wall of the lifting driving box, the screw rod is in threaded connection with a screw hole in the middle of a guide plate, T-shaped sliding grooves in the left end and the right end of the guide plate are respectively in sliding connection with the corresponding T-shaped sliding strips, vertical rods which are bilaterally symmetrical are arranged on the upper surface of the guide plate and are in sliding connection with corresponding sliding openings in the upper surface of the lifting driving box and extend to the upper part of the lifting driving box, the top ends of the front side surfaces of the two vertical rods are fixedly connected with a fixing frame, a drain pipe is arranged at the drain port at the bottom end of the front side surface of a water tank box, and a pipe valve is connected in series inside the drain pipe;

sealing and mounting mechanism: the front end of the upper surface of the bottom plate body of the fixed frame is arranged;

wherein: still include control switch, control switch sets up in the upper surface right rear end of lift drive box, and external power source is connected to control switch's input electricity, and control switch's output is connected to the input electricity of motor, and simple structure is practical, can accomplish the gas tightness detection work of low temperature combination formula air-vent valve fast, can guarantee the leakproofness of low temperature combination formula air-vent valve junction, prevents that this junction from appearing the seepage in the follow-up testing process and influencing detection quality, overall structure is stable, and the security is higher.

Further, sealed installation mechanism includes backing plate, ring flange, silica gel sealing ring and flange hole, the backing plate sets up in the bottom plate body upper surface front end of mount, and the upper surface of backing plate is equipped with the ring flange, and the upper surface of ring flange is equipped with the silica gel sealing ring, and angles such as the upper surface edge of ring flange are equipped with the flange hole that runs through the silica gel sealing ring, can install low temperature combination formula air-vent valve on the ring flange fast to guarantee the leakproofness of junction, prevent that the seepage from appearing in this junction in the follow-up testing process and influence detection quality.

Further, sealed installation mechanism still includes hollow cross plate, ejector pin and spring, hollow cross plate sets up in the upper surface center department of ring flange, and equal sliding connection has the ejector pin in the recess of four sides of hollow cross plate, the outer end of ejector pin all with the inner arc wall fixed connection of silica gel sealing ring, fixedly connected with spring between the recess inner wall that the interior terminal surface of ejector pin and hollow cross plate correspond, can be by interior and prop up the silica gel sealing ring outward, make the laminating of the inner arc wall of interface of silica gel sealing ring and low temperature combination formula air-vent valve inseparabler, further strengthen the leakproofness of this junction.

Furthermore, overflow pipe is arranged at the overflow port at the upper right end of the front side surface of the water tank box, the lowest point of the inner arc wall of the overflow pipe is lower than the upper surface of the lifting driving box, water exceeding the limit can be discharged, and the short circuit caused by water meeting of the motor is avoided.

Furthermore, the inside rear side of lift drive box is equipped with the guide bar, and the slide opening sliding connection of guide bar and deflector rear end can provide spacing supporting role for the deflector from the rear side, avoids the mount to take place to lean forward.

Compared with the prior art, the beneficial effects of the utility model are that: this low temperature combination formula air-vent valve performance check out test set has following benefit:

1. pass through flange hole and ring flange with the flange of low temperature combination formula air-vent valve kneck and be connected, the leakproofness of junction can be guaranteed to the silica gel sealing ring, prevents that this junction from appearing the seepage in the follow-up testing process and influencing detection quality, and the ejector pin receives the influence of spring elasticity potential energy release can be by interior and prop up the silica gel sealing ring outward, makes the laminating of the inner arc wall of the interface of silica gel sealing ring and low temperature combination formula air-vent valve inseparabler, further strengthens the leakproofness of this junction.

2. After the fixation is finished, the regulation and control through the control switch, the motor operates, the drive screw rod rotates, because the screw thread connection at screw rod and deflector middle part, the T shape spout at both ends respectively with the T shape draw runner sliding connection that corresponds about the deflector, can make the deflector move montant and mount and remove, thereby make the low temperature combination formula air-vent valve of installation on the plate body of mount bottom dip the aquatic that the basin incasement prepared in advance, and guarantee that the other end interface portion of low temperature combination formula air-vent valve is higher than the water level height of basin incasement, judge the sealing performance of this low temperature combination formula air-vent valve according to observing whether ponding of the inside of low temperature combination formula air-vent valve, moreover, the steam generator is simple in structure and practical, can accomplish the gas tightness detection work of low temperature combination formula air-vent valve fast.

3. Along with low temperature combination formula air-vent valve dip water tank incasement, the water level height of water tank incasement can rise thereupon, and the overflow pipe can be with the log raft play that surpasss the limit, avoids the motor to meet water and takes place the short circuit, and at the lift in-process of deflector, the guide bar can be followed the rear side and provide spacing supporting role for the deflector, avoids the mount to take place to lean forward.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the rear view internal cross-section structure of the present invention;

fig. 3 is an enlarged schematic view of the a position of the present invention.

In the figure: the device comprises a water tank 1, a lifting driving box 2, a control switch 3, a sealing installation mechanism 4, a backing plate 41, a flange plate 42, a silica gel sealing ring 43, a flange hole 44, a hollow cross plate 45, a top rod 46, a spring 47, a screw rod 5, a motor 6, a slide bar 7T-shaped, a guide plate 8, a vertical rod 9, a fixing frame 10, a drain pipe 11, an overflow pipe 12 and a guide rod 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a performance detection device for a low-temperature combined pressure regulating valve comprises a water tank 1 and a sealing installation mechanism 4;

water tank 1: a lifting driving box 2 is arranged at the rear side of the inner part of the lifting driving box 2, a screw rod 5 is rotatably connected at the front side of the inner part of the lifting driving box 2 through a bearing, an output shaft of a motor 6 arranged at the front side of the upper surface of the lifting driving box 2 is fixedly connected with the top end of the screw rod 5, T-shaped sliding strips 7 are symmetrically arranged on the left inner wall and the right inner wall of the lifting driving box 2, the screw rod 5 is in threaded connection with a screw hole in the middle of a guide plate 8, T-shaped sliding grooves at the left end and the right end of the guide plate 8 are respectively in sliding connection with the corresponding T-shaped sliding strips 7, vertical rods 9 are symmetrically arranged on the upper surface of the guide plate 8, the vertical rods 9 are in sliding connection with sliding openings corresponding to the upper surface of the lifting driving box 2 and extend to the upper part of the lifting driving box 2, the top ends of the front side surfaces of the two vertical rods 9 are fixedly connected with a pipe valve 10, a drain pipe 11 is arranged at the drain opening at the bottom end of the front side surface of the water tank box 1, the drain pipe 11 is connected in series, and after the fixation is finished, the regulation and control of a control switch 3, the motor 6 operates to drive the screw rod 5 to rotate, and as the screw rod 5 is in threaded connection with a screw hole in the middle of the guide plate 8, T-shaped chutes at the left end and the right end of the guide plate 8 are respectively in sliding connection with corresponding T-shaped sliding strips 7, so that the guide plate 8 can drive the vertical rod 9 and the fixing frame 10 to move, and the low-temperature combined type pressure regulating valve installed on a plate body at the bottom of the fixing frame 10 is immersed in water prepared in advance in the water tank box 1, and the interface part at the other end of the low-temperature combined type pressure regulating valve is higher than the water level height in the water tank box 1, so that the sealing performance of the low-temperature combined type pressure regulating valve is judged according to the observation of whether water is accumulated in the low-temperature combined type pressure regulating valve, the structure is simple and practical, and the air tightness detection work of the low-temperature combined type pressure regulating valve can be quickly completed;

the sealing installation mechanism 4: the sealing and mounting mechanism 4 comprises a backing plate 41, a flange 42, a silica gel sealing ring 43 and flange holes 44, wherein the backing plate 41 is arranged at the front end of the upper surface of the bottom plate of the fixed frame 10, the flange 42 is arranged on the upper surface of the backing plate 41, the silica gel sealing ring 43 is arranged on the upper surface of the flange 42, the flange holes 44 penetrating through the silica gel sealing ring 43 are arranged at the edge of the upper surface of the flange 42 at equal angles, the sealing and mounting mechanism 4 further comprises a hollow cross plate 45, ejector rods 46 and springs 47, the hollow cross plate 45 is arranged at the center of the upper surface of the flange 42, the ejector rods 46 are connected in the grooves on the four sides of the hollow cross plate 45 in a sliding manner, the outer ends of the ejector rods 46 are fixedly connected with the inner arc walls of the silica gel sealing ring 43, the springs 47 are fixedly connected between the inner end surfaces of the ejector rods 46 and the inner walls of the grooves corresponding to the hollow cross plate 45, and a connecting flange at a low-temperature combined interface is connected with the flange 42 through the flange holes 44, the silica gel sealing ring 43 can ensure the sealing performance of the joint, and can prevent the joint from leaking to influence the detection quality in the subsequent detection process, the ejector rod 46 can support the silica gel sealing ring 43 from inside to outside under the influence of the release of the elastic potential energy of the spring 47, so that the silica gel sealing ring 43 is more tightly attached to the inner arc wall of the interface of the low-temperature combined pressure regulating valve, and the sealing performance of the joint is further enhanced;

wherein: still include control switch 3, control switch 3 sets up in the upper surface right rear end of lift drive box 2, and external power source is connected to control switch 3's input electricity, and control switch 3's output is connected to motor 6's input electricity.

Wherein: overflow pipe 12 is equipped with in the overflow mouth department of the upper right end of water tank case 1 front side, and the inner arc wall minimum of overflow pipe 12 is less than the upper surface of lift drive box 2, and along with low temperature combination formula air-vent valve soaks in water tank case 1, the water level height in water tank case 1 can rise thereupon, and overflow pipe 12 can be with the log raft play that surpasss the limit, avoids motor 6 to meet the water and takes place the short circuit.

Wherein: the inside rear side of lift drive box 2 is equipped with guide bar 13, and guide bar 13 and the sliding hole sliding connection of deflector 8 rear end, at the lift in-process of deflector 8, guide bar 13 can be followed the rear side and provide spacing supporting role for deflector 8, avoids mount 10 to take place to lean forward.

When in use: the connecting flange at the interface of the low-temperature combined type pressure regulating valve is connected with the flange plate 42 through the flange hole 44, the silica gel sealing ring 43 can ensure the sealing performance of the connecting part, the leakage at the connecting part in the subsequent detection process is prevented from influencing the detection quality, the ejector rod 46 can prop up the silica gel sealing ring 43 from inside to outside under the influence of the elastic potential energy release of the spring 47, so that the silica gel sealing ring 43 is more tightly attached to the inner arc wall of the interface of the low-temperature combined type pressure regulating valve, the sealing performance of the connecting part is further enhanced, after the fixation is finished, the motor 6 operates by controlling the switch 3, drives the screw rod 5 to rotate, as the screw rod 5 is in threaded connection with the screw hole in the middle of the guide plate 8, the T-shaped chutes at the left end and the right end of the guide plate 8 are respectively in sliding connection with the corresponding T-shaped sliding strips 7, the guide plate 8 can drive the vertical rod 9 and the fixing frame 10 to move, so that the low-temperature combined type pressure regulating valve installed on the bottom plate body of the fixing frame 10 is immersed in the water tank 1 prepared in advance, and guarantee that the other end interface part of low temperature combination formula air-vent valve is higher than the water level height in the basin case 1, whether ponding judges the sealing performance of this low temperature combination formula air-vent valve according to observing the inside of low temperature combination formula air-vent valve, simple structure is practical, can accomplish the gas tightness detection work of low temperature combination formula air-vent valve fast, along with low temperature combination formula air-vent valve soaks in the basin case 1, the water level height in the basin case 1 can rise thereupon, overflow pipe 12 can be with the log-out that surpasses the limit, avoid motor 6 to meet the water and take place the short circuit, in the lift in-process of deflector 8, guide bar 13 can provide spacing supporting role for deflector 8 from the rear side, avoid mount 10 to take place to lean forward.

It should be noted that the motor 6 disclosed in this embodiment is a 7.9KW dc servo motor manufactured by demark motor limited, guangzhou city, and the control switch 3 controls the motor 6 to operate by a method commonly used in the prior art.

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

Claims

1. The utility model provides a low temperature combination formula air-vent valve performance check out test set which characterized in that: comprises a water tank (1) and a sealing installation mechanism (4);

sump tank (1): a lifting driving box (2) is arranged at the rear side of the inner part of the lifting driving box (2), a screw rod (5) is rotatably connected at the front side of the inner part of the lifting driving box (2) through a bearing, an output shaft of a motor (6) arranged at the front side of the upper surface of the lifting driving box (2) is fixedly connected with the top end of the screw rod (5), T-shaped sliding strips (7) are symmetrically arranged on the left inner wall and the right inner wall of the lifting driving box (2), the screw rod (5) is in threaded connection with a screw hole in the middle of a guide plate (8), T-shaped sliding grooves at the left end and the right end of the guide plate (8) are respectively in sliding connection with the corresponding T-shaped sliding strips (7), vertical rods (9) are symmetrically arranged on the upper surface of the guide plate (8), the vertical rods (9) are in sliding connection with sliding openings corresponding to the upper surface of the lifting driving box (2) and extend to the upper part of the lifting driving box (2), the top ends of the front side surfaces of the two vertical rods (9) are fixedly connected with a fixed frame (10), a drain pipe (11) is arranged at the drain port at the bottom end of the front side surface of a water tank (1), a pipe valve is connected in series inside the drain pipe (11);

seal installation mechanism (4): is arranged at the front end of the upper surface of the bottom plate body of the fixed frame (10);

wherein: still include control switch (3), control switch (3) set up in the right rear end of the upper surface of lift drive box (2), and external power source is connected to the input electricity of control switch (3), and the output of control switch (3) is connected to the input electricity of motor (6).

2. The performance detection device for the low-temperature combined pressure regulating valve according to claim 1, characterized in that: sealed installation mechanism (4) include backing plate (41), ring flange (42), silica gel sealing ring (43) and flange hole (44), backing plate (41) set up in the bottom plate body upper surface front end of mount (10), and the upper surface of backing plate (41) is equipped with ring flange (42), and the upper surface of ring flange (42) is equipped with silica gel sealing ring (43), and the upper surface edge of ring flange (42) waits the angle to be equipped with flange hole (44) that run through silica gel sealing ring (43).

3. The performance detection device for the low-temperature combined pressure regulating valve according to claim 2, characterized in that: sealing installation mechanism (4) still include hollow cross plate (45), ejector pin (46) and spring (47), hollow cross plate (45) set up in the upper surface center department of ring flange (42), and equal sliding connection has ejector pin (46) in the recess of hollow cross plate (45) four sides, and the outer end of ejector pin (46) all is connected with the inner arc wall fixed connection of silica gel sealing ring (43), fixedly connected with spring (47) between the recess inner wall that the interior terminal surface of ejector pin (46) and hollow cross plate (45) correspond.

4. The performance detection device for the low-temperature combined pressure regulating valve according to claim 1, characterized in that: an overflow pipe (12) is arranged at an overflow port at the upper right end of the front side surface of the water tank box (1), and the lowest point of the inner arc wall of the overflow pipe (12) is lower than the upper surface of the lifting driving box (2).

5. The performance detection device for the low-temperature combined pressure regulating valve according to claim 1, characterized in that: the inside rear side of lift drive box (2) is equipped with guide bar (13), and guide bar (13) and the sliding hole sliding connection of deflector (8) rear end.