CN223154449U - Differential pressure transmitter quick seal leak hunting frock - Google Patents

Abstract

The utility model provides a differential pressure transmitter rapid sealing leak detection tool with simple structure, high detection accuracy and easy operation. The tool comprises a box, a cylinder, a clamping structure and a water tank. The clamping structure is driven by the cylinder to clamp multiple differential pressure transmitters at one time and push them into the water tank for leak detection. The clamping structure adopts a multi-plate staggered design, and uses components such as a sealing pressure-charging movable plate and a drain valve limit plate to realize simultaneous detection of multiple differential pressure transmitters. The sealing performance of the differential pressure transmitter can be accurately judged by the changes in the bubbles in the water tank. The tool adopts an electromagnetic valve to control pressurization and pressure relief, which is easy to operate and has high detection efficiency. Different models of differential pressure transmitters can be detected and have high adaptability. The design of the positioning joint and the O-ring ensures the sealing performance of the pressure port and further improves the detection accuracy. The tool has a stable structure and is easy to operate, and is suitable for rapid leak detection of various differential pressure transmitters.

Description

Differential pressure transmitter quick seal leak hunting frock

Technical Field

The utility model belongs to the technical field of differential pressure transmitter leakage detection, and particularly relates to a differential pressure transmitter quick sealing leakage detection tool.

Background

The quick leak detection tool for the differential pressure transmitter is a technical means designed for solving the problem of air leakage of the common differential pressure transmitter in industry, and in practical application, the differential pressure transmitter may have air leakage phenomenon due to poor sealing, improper installation or reduced sealing performance after long-time use. This can lead to inaccurate measurement, system performance decline and potential safety hazard, so differential pressure transmitter need carry out sealing performance leak hunting when dispatching from the factory, provides fine product for the customer.

Defects and deficiencies of the prior art:

The problem of detection accuracy is that some existing rapid leak detection tools may have the problem of low detection in practical application, and small gas leakage cannot be effectively detected;

The leakage detection efficiency is low, the traditional leakage detection tool usually adopts a manual mode, and only one differential pressure transmitter can be detected at a time, so that the time is long, and the quick and large-scale detection is difficult to realize. The manual operation mode has subjective errors, consumes a large amount of manpower and has lower efficiency.

The adaptability is poor, and part of the tools have insufficient adaptability to differential pressure transmitters of different types or sizes and frequent calibration and maintenance are required;

Operational complexity the operation of a portion of the rapid leak detection tooling may require complex training or expertise, such that the operator requires additional learning and mastering time.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to provide the quick sealing leakage detection tool for the differential pressure transmitter, which has the advantages of simple structure, high detection accuracy, simplicity and convenience in operation and higher adaptability.

The technical scheme of the utility model is as follows:

The quick sealing leakage detecting tool for the differential pressure transmitter comprises a box body, air cylinders arranged above the box body, clamping structures arranged in the middle of the box body and used for clamping the differential pressure transmitter, and a water tank arranged below the clamping structures, wherein the air cylinders are fixed above the box body through bridge supports, push-pull rods of the air cylinders are vertically and downwards arranged, the clamping structures are arranged between the bridge supports, and the push-pull rods of the air cylinders are fixedly connected with the clamping structures;

The clamping structure comprises a supporting plate, two guide rods which are parallel and horizontally arranged on the supporting plate, a clamping bolt, a thrust fixing plate, a drain valve limiting push plate, a plurality of sealing pressurizing movable plates, a plurality of drain valve limiting movable plates and a drain valve limiting fixing plate which are sequentially sleeved on the two guide rods in parallel; the sealing pressurizing movable plates and the draining valve limiting movable plates are arranged between the draining valve limiting push plate and the draining valve limiting fixed plate in a staggered manner, and are respectively adjacent to the draining valve limiting push plate and the draining valve limiting fixed plate and are sealing pressurizing movable plates; the pressure-relief device comprises a sealing pressurizing movable plate, a plurality of differential pressure transmitters, a thrust fixed plate, a drain valve limiting fixed plate, a limiting structure, a pressurizing channel, a pressurizing connector and an air inlet pipe, wherein the thrust fixed plate and the drain valve limiting fixed plate are respectively fixed at two ends of a supporting plate, the two ends of the guide rods are respectively fixed on the thrust fixed plate and the drain valve limiting fixed plate, the differential pressure transmitters are all arranged between the two guide rods, a penetrating threaded sleeve is fixedly arranged in the middle of the thrust fixed plate, a screw rod of a clamping bolt is mutually matched with the threaded sleeve, the end of the screw rod is abutted against the middle of the drain valve limiting push plate, the pressure-relief valve and the pressure-taking opening are arranged on the differential pressure transmitters, positioning connectors which are mutually connected with the pressure-taking opening of the differential pressure sensor are respectively arranged at two sides of the sealing pressurizing movable plate, the limiting structures which are mutually matched with the pressure-relief valves on the differential pressure transmitters are respectively arranged on the drain valve limiting push plate, the drain valve limiting movable plate and the drain valve limiting fixed plate, the pressurizing channel which is mutually communicated with the positioning connectors at two sides are arranged in the sealing pressurizing movable plate, and the pressurizing connector which is connected with the pressurizing channel is connected with the air inlet pipe.

Through the spacing push pedal of drain valve, sealed pressurization fly leaf, the spacing fly leaf of drain valve and the spacing fixed plate of drain valve, under the effect of clamp bolt and thrust fixed plate, press from both sides tight along the guide arm direction with a plurality of differential pressure transmitters in proper order through screwing clamp bolt, can press from both sides a plurality of differential pressure transmitters respectively tight between the spacing push pedal of drain valve and sealed punching press fly leaf, between sealed punching press fly leaf and the spacing fly leaf of drain valve and between inferior fly leaf and the spacing fixed plate of drain valve in sealed, only need fix once can realize the detection of a plurality of differential pressure transmitters, thereby can once only detect a plurality of differential pressure transmitters, leak hunting efficiency has been improved, the complexity of operation has been reduced. The water tank is arranged right below the clamping structure, the air cylinder is fixed on the box body through the bridge bracket, the push-pull rod of the air cylinder is fixedly connected with the clamping structure and pushes and pulls the clamping structure to enter the water tank or lift away from the water tank, a plurality of differential pressure transmitters can be immersed in water for detection through the push-pull clamping structure of the air cylinder at one time, the operation is simple and convenient, and the detection efficiency is improved.

Furthermore, the positioning joint is horn-shaped, the big end of the positioning joint is arranged on the stamping sealing movable plate, and the periphery of the positioning joint is also provided with an O-shaped sealing ring.

Through setting up the location joint into loudspeaker form be convenient for location joint and get the butt joint cooperation of pressure mouth, through the setting of O shape sealing washer, can form airtight space with differential pressure transmitter and gas circuit, improved the accuracy of detection.

Further, the push-pull rod of the cylinder is fixedly connected with the supporting plate through the connecting frame, the connecting frame is arranged in the bridge bracket, the connecting frame comprises a connecting plate fixedly connected with the push-pull rod and connecting legs arranged at two sides of the connecting plate, and the connecting legs at two sides are respectively and fixedly connected with the supporting plates at two sides of the guide rod.

The connecting frame and the bridge bracket are industrial profiles. The connecting legs are connected with the supporting plates through contact surfaces, so that the clamping framework is stably connected to the connecting frame.

Preferably, the number of the sealing stamping movable plates is two, the number of the drain valve limiting movable plates is four, the number of differential pressure transmitters for leak detection of the leak detection tool is four, an air path ball valve is arranged on an air inlet pipeline fixed on the box body, a front section air inlet pipeline of the air path ball valve is communicated with a pressurizing connector on one sealing stamping movable plate, and a rear section air inlet pipeline of the air path ball valve is communicated with a pressurizing connector on the other sealing stamping movable plate.

The four differential pressure transmitters are detected once, so that the operation is convenient, and the observation when the differential pressure transmitters enter the water is also convenient. And two differential pressure transmitters are in a group, when only two differential pressure transmitters are needed to be detected, the two differential pressure transmitters can be connected with the air inlet pipeline at the front section of the air path ball valve, and the air path ball valve is closed.

The drain valve limiting push plate, the sealing stamping movable plate, the drain valve limiting movable plate and the drain valve limiting fixed plate are all replaceable, and when different differential pressure transmitters are required to be detected, the drain valve limiting push plate, the sealing stamping movable plate, the drain valve limiting movable plate and the drain valve limiting fixed plate are replaced by the types matched with the differential pressure transmitters, so that the adaptability of the leak detection tool is improved.

The air inlet pipeline is fixedly arranged on the box body, an electromagnetic valve is arranged on the air inlet pipeline, and the air inlet pipeline is communicated with the pressurizing connector through a hose. Whether the air channel is ventilated or not is controlled by an electromagnetic valve.

The bottom of the water tank is provided with a drain switch, the box body is provided with a control box for controlling the electromagnetic valve and the air cylinder, and the bottom of the box body is provided with four universal wheels.

By arranging the control box, the functions of reciprocating motion, pressure inlet, pressure relief and the like of the air cylinder can be realized.

Compared with the prior art, the utility model has the following technical effects:

1. The rapid sealing leakage detection tool for the differential pressure transmitter can accurately judge whether the differential pressure transmitter leaks or not through bubble transformation in the water tank, and can effectively detect tiny gas leakage.

2. The utility model adopts an electric drive gas circuit control system, and can realize the functions of pressurization, cylinder reciprocating motion, pressure relief and the like through the electromagnetic valve.

3. The utility model has high adaptability and can detect differential pressure transmitters with different clamping plate types.

4. The utility model has the advantages of relatively simple operation, no need of complex training or professional knowledge, quick mastering by operators, high leak detection efficiency and completion of the process operation.

Drawings

Brief description of the drawingsthe accompanying drawings and references in the drawings are provided:

FIG. 1 is a schematic diagram of a leak detection tool according to an embodiment;

FIG. 2 is a top view of the view of FIG. 1;

FIG. 3 is a schematic view of the structure of the clamping structure of the embodiment;

Fig. 4 is an enlarged view at a in fig. 1;

FIG. 5 is a schematic view of a cylinder connection structure of an embodiment;

The device comprises a box body, a cylinder, a water tank, a bridge bracket, a supporting plate, a guide rod, a clamping bolt, a thrust fixing plate, a discharge valve limiting push plate, a differential pressure transmitter, a sealing pressurizing movable plate, a discharge valve limiting fixing plate, a screw sleeve, a positioning connector, a 16, a pressurizing channel, a 17, a pressurizing connector, a 18, an air inlet pipeline, a 19, an O-shaped sealing ring, a 20, a connecting plate, a 21, a connecting leg, a 22, an air path ball valve, a 23, an electromagnetic valve, a 24, a hose, a 25, a water discharge switch, a 26, a control box and a 27 universal wheel.

Detailed Description

The utility model will be further elucidated with reference to a non-limiting example given in the following with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Examples

The quick sealing leakage detecting tool for the differential pressure transmitter comprises a box body 1, an air cylinder 2 arranged above the box body 1, a clamping structure arranged in the middle of the box body 1 and used for clamping the differential pressure transmitter 10, and a water tank 3 arranged below the clamping structure, wherein the air cylinder 2 is fixed above the box body 1 through a bridge bracket 4, a push-pull rod of the air cylinder 2 is vertically and downwards arranged, the clamping structure is arranged between the bridge brackets 4, the push-pull rod of the air cylinder 2 is fixedly connected with a supporting plate 5 through a connecting frame, the connecting frame is arranged in the bridge brackets 4, the connecting frame comprises a connecting plate 20 fixedly connected with the push-pull rod and connecting legs 21 arranged on two sides of the connecting plate 20, and the connecting legs 21 on two sides are respectively and fixedly connected with the supporting plates 5 on two sides of a guide rod 6.

The clamping structure comprises a supporting plate 5, two guide rods 6 which are parallel and horizontally arranged on the supporting plate 5, clamping bolts 7, a thrust fixing plate 8, a drain valve limiting push plate 9, two sealing pressurizing movable plates 11, a drain valve limiting movable plate 12 and a drain valve limiting fixing plate 13 which are sequentially sleeved on the two guide rods 6 in parallel, wherein the two sealing pressurizing movable plates 11 and the drain valve limiting movable plates 12 are arranged between the drain valve limiting push plate 9 and the drain valve limiting fixing plate 13 in a staggered mode, the sealing pressurizing movable plates 11 are respectively adjacent to the drain valve limiting push plate 9 and the drain valve limiting fixing plate 13 and are respectively clamped on two sides of the sealing pressurizing movable plates 11, the thrust fixing plate 8 and the drain valve limiting fixing plate 13 are respectively fixed on two ends of the supporting plate 5, the four differential pressure transmitters 10 are respectively arranged between the two guide rods 6, a threaded sleeve 14 penetrating through the middle part of the fixing plate 8 is fixedly arranged, and the clamping bolts 14 are matched with the middle parts of the clamping bolts 9 in a threaded mode, and the threaded sleeve is abutted against the middle part of the threaded sleeve 9.

As shown in fig. 1 and 3, a pressure release valve and a pressure taking port are arranged on a differential pressure transmitter 10, positioning joints 15 which are mutually connected with the pressure taking port of the differential pressure sensor in a sealing and pressurizing mode are respectively arranged on two sides of a movable sealing and pressurizing plate 11, limiting structures which are mutually matched with the pressure release valve on the differential pressure transmitter 10 are respectively arranged on a limiting push plate 9 of the drain valve, a limiting movable plate 12 of the drain valve and a limiting fixed plate 13 of the drain valve, a pressurizing channel 16 which is mutually communicated with the positioning joints 15 on two sides is arranged in the movable sealing and pressurizing plate, a pressurizing joint 17 which is connected with the pressurizing channel 16 is arranged on the movable sealing and pressurizing plate, and the pressurizing joint 17 is connected with an air inlet pipeline 18. The positioning joint 15 is horn-shaped, the big end of the positioning joint is arranged on the stamping sealing movable plate, and an O-shaped sealing ring 19 is arranged on the periphery of the positioning joint 15.

As shown in fig. 1, an air path ball valve 22 is arranged on an air inlet pipeline 18 fixed on the box body 1, a front section air inlet pipeline 18 of the air path ball valve 22 is communicated with a pressurizing joint 17 on one sealing and stamping movable plate, and a rear section air inlet pipeline 18 of the air path ball valve 22 is communicated with a pressurizing joint 17 on the other sealing and stamping movable plate. The air intake pipe 18 is fixedly arranged on the box body 1, an electromagnetic valve 23 is arranged on the air intake pipe 18, and the air intake pipe 18 is communicated with the pressurizing connector 17 through a hose 24. A drain switch 25 is arranged at the bottom of the water tank 3, a control solenoid valve 23 and a control box 26 of the air cylinder 2 are arranged on the box 1, and four universal wheels 27 are arranged at the bottom of the box 1.

Before use, as shown in fig. 2 and 3, a thrust fixed plate 8, a drain valve limiting push plate 9, two sealing pressurizing movable plates 11, a drain valve limiting movable plate 12 and a drain valve limiting fixed plate 13 are sequentially arranged on a supporting plate 5 and are connected with a guide rod 6, wherein the drain valve limiting push plate 9, the two sealing stamping movable plates and the drain valve limiting movable plate 12 can slide on a guide rail between the thrust fixed plate 8 and the drain valve limiting fixed plate 13, as shown in fig. 2, four differential pressure transmitters 10 are respectively arranged between the drain valve limiting push plate 9, the two sealing stamping movable plates, the drain valve limiting movable plate 12 and the drain valve limiting fixed plate 13, one side of the differential pressure transmitters 10 with a pressure taking opening is in butt joint with the sealing stamping movable plate, the pressure taking opening is mutually connected with a positioning structure on the sealing pressurizing movable plate 11, and finally, the drain valve limiting push plate 9 is acted on by a clamping bolt 7, as shown in fig. 2 and 3, the drain valve limiting push plate 9 is pushed to the right side along the guide rod 6, so that the differential pressure transmitters 10 between the clamps are extruded, and the differential pressure transmitters 19 act, so that the differential pressure transmitters 10 and the electromagnetic valve 18 are communicated with an air inlet channel 18 and an air inlet channel 18 are formed by the differential pressure transmitter 18, and an air inlet channel 18 are communicated with the electromagnetic valve 18; under the action of the air cylinder 2, the push-pull rod of the air cylinder 2 pushes the clamping structure to move into the water tank 3 below and submerge, and whether the differential pressure transmitter 10 leaks or not is detected through observation. After the detection is finished, the pressure is relieved, and a clamping structure is lifted out of the water tank 3 through the air cylinder 2.

In the description of the present utility model, it should be understood that, if the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, they are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, when used herein, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" should be interpreted broadly, as they relate to, for example, a fixed connection, a removable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, or a communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Claims (6)

1. The quick sealing leakage detecting tool for the differential pressure transmitter is characterized by comprising a box body (1), air cylinders (2) arranged above the box body (1), clamping structures arranged in the middle of the box body (1) and used for clamping the differential pressure transmitter (10), and water tanks (3) arranged below the clamping structures, wherein the air cylinders (2) are fixed above the box body (1) through bridge supports (4), push-pull rods of the air cylinders (2) are vertically and downwards arranged, the clamping structures are arranged between the bridge supports (4), and the push-pull rods of the air cylinders (2) are fixedly connected with the clamping structures;

The clamping structure comprises a supporting plate (5), two guide rods (6) which are parallel and horizontally arranged on the supporting plate (5), clamping bolts (7), and thrust fixing plates (8), drain valve limiting push plates (9), a plurality of sealing and pressurizing movable plates (11), a plurality of drain valve limiting movable plates (12) and drain valve limiting fixing plates (13) which are sequentially sleeved on the two guide rods (6) in parallel, wherein the plurality of sealing and pressurizing movable plates (11) and the plurality of drain valve limiting movable plates (12) are alternately arranged between the drain valve limiting push plates (9) and the drain valve limiting fixing plates (13), the sealing and pressurizing movable plates (11) are respectively adjacent to the drain valve limiting push plates (9) and the drain valve limiting fixing plates (13), a plurality of differential pressure transmitters (10) are respectively clamped on two sides of the sealing and pressurizing movable plates (11), the thrust fixing plates (8) and the drain valve limiting fixing plates (13) are respectively fixed at two ends of the supporting plate (5), the two ends of the sealing and pressurizing movable plates (11) and the drain valve limiting movable plates (12) are respectively fixed between the two guide rods (8) and the guide rods (6), the differential pressure transmitters (10) are respectively arranged between the two differential pressure transmitters (10) and are fixedly provided with threads, the pressure-relief device is characterized in that a screw of a clamping bolt (7) is matched with a threaded sleeve (14) and the end of the screw is abutted against the middle of a limit push plate (9) of a drain valve, a pressure relief valve and a pressure taking port are arranged on a differential pressure transmitter (10), positioning joints (15) which are mutually connected with the pressure taking ports of a differential pressure sensor in a sealing mode are respectively arranged on two sides of a seal pressurizing movable plate (11), limiting structures which are mutually matched with the pressure relief valve on the differential pressure transmitter (10) are arranged on the limit push plate (9) of the drain valve, the limit movable plate (12) of the drain valve and a limit fixed plate (13) of the drain valve, a pressurizing channel (16) which is mutually communicated with the positioning joints (15) on two sides are arranged in the seal stamping movable plate, and the pressurizing joints (17) are connected with the pressurizing channel (16) are arranged on the seal stamping movable plate, and the pressurizing joints (17) are connected with an air inlet pipeline (18).

2. The quick sealing and leakage detecting tool for the differential pressure transmitter, as claimed in claim 1, is characterized in that the positioning joint (15) is horn-shaped, the big end of the positioning joint is arranged on the stamping and sealing movable plate, and an O-shaped sealing ring (19) is further arranged on the periphery of the positioning joint (15).

3. The quick sealing and leakage detecting tool for the differential pressure transmitter as claimed in claim 1, wherein the push-pull rod of the cylinder (2) is fixedly connected with the supporting plate (5) through a connecting frame, the connecting frame is arranged in the gap bridge bracket (4), the connecting frame comprises a connecting plate (20) fixedly connected with the push-pull rod and connecting legs (21) arranged on two sides of the connecting plate (20), and the connecting legs (21) on two sides are respectively and fixedly connected with the supporting plate (5) on two sides of the guide rod (6).

4. The quick sealing and leakage detecting tool for the differential pressure transmitter, as set forth in claim 1, is characterized in that two sealing and stamping movable plates are adopted, one drain valve limiting movable plate (12) is adopted, the number of differential pressure transmitters (10) for leakage detection of the leakage detecting tool is four, an air path ball valve (22) is arranged on an air inlet pipeline (18) fixed on a box body (1), a front section air inlet pipeline (18) of the air path ball valve (22) is communicated with a pressurizing connector (17) on one sealing and stamping movable plate, and a rear section air inlet pipeline (18) of the air path ball valve (22) is communicated with a pressurizing connector (17) on the other sealing and stamping movable plate.

5. A differential pressure transmitter rapid seal leak detection tool as defined in claim 1, wherein the air inlet pipe (18) is fixedly arranged on the box body (1), an electromagnetic valve (23) is arranged on the air inlet pipe (18), and the air inlet pipe (18) is communicated with the pressurizing connector (17) through a hose (24).

6. The quick sealing and leakage detecting tool for the differential pressure transmitter, as claimed in claim 5, is characterized in that a drain switch (25) is arranged at the bottom of the water tank (3), a control box (26) for controlling the electromagnetic valve (23) and the air cylinder (2) is arranged on the box body (1), and four universal wheels (27) are arranged at the bottom of the box body (1).