CN216386190U - Portable vacuum detection device - Google Patents
Portable vacuum detection device Download PDFInfo
- Publication number
- CN216386190U CN216386190U CN202122697359.7U CN202122697359U CN216386190U CN 216386190 U CN216386190 U CN 216386190U CN 202122697359 U CN202122697359 U CN 202122697359U CN 216386190 U CN216386190 U CN 216386190U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- plate
- spraying
- plastic
- foaming liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a portable vacuum detection device, which comprises a vacuum plastic frame, a vacuum meter and a foaming liquid spraying assembly, and provides a method for detecting the vacuum of a heat exchanger on site, wherein the device is arranged on both sides of a tube plate of the heat exchanger, the vacuum plastic frame is arranged on the heat exchanger, so that the surface of the tube head of the whole heat exchanger is arranged in a cavity, the cavity is vacuumized by adjusting a valve to form a vacuum cavity, the foaming liquid spraying assembly sprays foaming liquid on the tube head of the whole heat exchanger by utilizing negative pressure generated by vacuumizing, whether pressure is stable or not and whether foam is generated or not are observed, the quality of the tube head and the heat exchange tube of the heat exchanger can be directly and conveniently observed, the foaming liquid is prevented from drying out in the detection process, misjudgment is avoided, the waste of the foaming liquid is reduced, the foaming liquid is recycled by a recycling valve after the test, the using amount of the foaming liquid can be reduced, and the cleanness on site can also be ensured, the detection cost is reduced.
Description
Technical Field
The utility model relates to the field of heat exchanger detection structures, in particular to a portable vacuum detection device.
Background
Chemical enterprises in China have been developed for decades, and gradually enter a steady development stage from the initial explosive increase. The demands of field service and detection of chemical equipment are increasing day by day, and the demands of portable detection modes are increasing more and more. The conditions of chemical equipment are complicated and the equipment is densely distributed, and when the chemical equipment is repaired on site, the pressure detection means such as air tightness, water pressure and the like are often difficult to implement as effective means for accurately positioning the defects of the heat exchange pipe head, particularly for large and small heat exchangers, and a plurality of heat exchange pipe holes exist on the pipe plate surface of the heat exchanger.
In the conventional vacuum detection, the foaming liquid is pre-coated before detection, so that the foaming liquid is dried in the detection process, and waste is caused.
The prior patent CN 201921998613.3 provides a detection device for a heat exchanger, which includes a casing with an open top, a sealing cover covering the top of the casing, and a plate heat exchanger, wherein a support for placing the plate heat exchanger is disposed inside the casing, two inlet pipes opposite to the plate heat exchanger are respectively connected with three-way valves, two interfaces of one of the three-way valves are respectively connected with a first positive pressure gauge and a first air inlet valve, and two interfaces of the other three-way valve are respectively connected with a second positive pressure gauge and a second air inlet valve; the vacuum pump is arranged on one side of the outer portion of the shell, the vacuum tube is arranged between the vacuum pump and the shell, the valve is arranged on the vacuum tube, and the negative pressure meter is further arranged on the side wall of the outer portion of the shell.
However, the above patent is large in overall specification, not easy to carry and transport, high in cost, and incapable of positioning the defect position quickly and intuitively.
The prior patent CN 201811160966.6 provides a portable vacuum leak detector and a detection method thereof, the portable vacuum leak detector comprises a bearing shell, conversion shell components with the same structure are symmetrically arranged at the positions, close to the lower parts of the left side and the right side of the bearing shell, the top of the bearing shell is inserted with a detection box body, the top of the detection box body is provided with a rectangular sealing cavity, and the outer wall of a rectangular sealing frame is provided with a rectangular sealing ring. The stability of moving and transporting is ensured, and the stability during detection is also ensured.
However, before the detection device is used, a user needs to rotate the adjusting screw to drive the supporting block, the detection box body is driven by the supporting block to ascend to a specified height for detection, and the detection box body is retracted into the bearing shell after the detection is finished, so that the detection device is complex to operate and is not suitable for complex and changeable site environments of chemical plants; the bubble plate to be inspected needs to be taken out for observation, the operation is complicated and not intuitive enough, and the detection result of the bubble plate can be damaged in the taking-out process, so that misjudgment is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a portable vacuum detection device, and solves the problems that the prior art is not easy to carry and transport, has higher cost, can not quickly and intuitively position a defect part, has complex operation, is not suitable for complex and changeable field environments of chemical plants, and is easy to cause misjudgment.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the portable vacuum detection device has the innovation points that: comprises a vacuum plastic frame, a vacuum meter and a foaming liquid spraying component;
the vacuum plastic frame comprises a first plastic plate and a second plastic plate, and the first plastic plate and the second plastic plate are transparent plates;
the vacuum plastic frame is characterized in that the first plastic plate is a rectangular plate, a rectangular spraying window is arranged in the middle of the first plastic plate, the second plastic plate is an Contraband-shaped plate and comprises a vertically arranged arc-shaped plate, and a top plate and a bottom plate which are vertically arranged at two ends of the arc-shaped plate, the top plate and the bottom plate are both horizontal plates, the horizontal plates are arc-shaped, the opening of the second plastic plate faces the first plastic plate and is vertically fixed on one side surface of the first plastic plate to form the vacuum plastic frame, and the second plastic plate completely covers the whole spraying window, so that a cavity is formed inside the vacuum plastic frame;
the foaming liquid spraying assembly comprises a spraying pipe and a spraying head, the spraying pipe is vertically arranged, the spraying head is arranged on one side of the bottom of the spraying pipe, and a water valve is further arranged on the spraying pipe;
the top plate is provided with a first connecting port, a second connecting port and a third connecting port which are communicated with the cavity, the first connecting port is provided with a vacuum meter, the second connecting port is provided with an adjusting valve, the third connecting port is provided with the foaming liquid spraying assembly, so that the spraying head is arranged at the middle position of the spraying window in the cavity, the water valve is arranged outside the cavity, and the spraying head is arranged towards the first plastic plate, so that the spraying area of the spraying head completely covers the spraying window;
the bottom plate is provided with a recovery port communicated with the cavity, and the recovery port is provided with a recovery pipeline and a recovery valve.
Furthermore, a sealing gasket is arranged on one side surface of the first plastic plate, which is far away from the second plastic plate, and is used for sealing and connecting the device to be detected.
Further, the material of sealed pad is sealing rubber, adopts winding arrangement to make through the sealing rubber strip, is applicable to and detects the device surface unevenness's sealed problem.
Further, the width of the sealing surface of the gasket = three times the diameter of the heat exchange tube, and the gasket with the width can achieve the best sealing effect, and when the gasket is too small, the gasket cannot be sealed, and when the gasket is too large, the gasket is heavy and the sealing effect is reduced.
The utility model has the advantages that:
1) the utility model provides a method for vacuum detection of an on-site heat exchanger, which has a simple structure, a small volume and easy carrying, wherein the device is arranged on both sides of a heat exchanger tube plate, a vacuum plastic frame is arranged on the heat exchanger, so that the surface of the whole heat exchanger tube head is arranged in a cavity, the cavity is vacuumized to form a vacuum cavity by adjusting a valve, a foaming liquid spraying assembly sprays foaming liquid on the whole heat exchanger tube head by using negative pressure generated by vacuumizing, whether pressure is stable or not and whether foam is generated or not are observed, the quality of the heat exchanger tube head and a heat exchange tube is conveniently and visually detected, the foaming liquid is prevented from drying out in the detection process, misjudgment is avoided, the waste of the foaming liquid is reduced, and after the test, the foaming liquid is recovered by a recovery valve, so that the use amount of the foaming liquid can be reduced, the on-site cleanness can be ensured, and the detection cost is reduced;
2) the sealing gasket is made of sealing rubber, and is made of a winding structure through the sealing rubber strips, so that vacuum sealing can be performed on the surface with certain unevenness and even holes, the practicability is high, the vacuum sealing device is suitable for complex and changeable field environments of chemical plants, the detection is flexible, and the vacuum sealing device can be suitable for vacuum detection of various structures, sizes and positions;
3) compared with measures such as water pressure, air tightness, vortex and the like, the method has low cost, can effectively replace the positioning work of initial defects, and is particularly obvious for large-scale equipment;
4) the utility model has high safety in practical use, and can be used for detection without entering the equipment, thereby preventing the detection personnel from being damaged by toxic and harmful substances possibly remaining in the chemical equipment.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a front view of a portable vacuum testing apparatus of the present invention.
FIG. 2 is a top view of a portable vacuum testing apparatus of the present invention.
FIG. 3 is a cross-sectional view of a portable vacuum testing device of the present invention.
Fig. 4 is a diagram of a portable vacuum detection device of the present invention used on a heat exchanger.
Detailed Description
A portable vacuum testing apparatus as shown in fig. 1 to 3 comprises a vacuum plastic frame 1, a vacuum gauge 2 and a foaming liquid spraying assembly 3.
The vacuum plastic frame 1 includes a first plastic panel 11 and a second plastic panel 12, and the first plastic panel 11 and the second plastic panel 12 are transparent panels.
The first plastic plate 11 is a rectangular plate, and a rectangular spraying window 13 is arranged in the middle of the first plastic plate 11.
The second plastic board 12 is an Contraband-shaped board, and includes a vertically-arranged arc-shaped board, and a top board and a bottom board vertically arranged at two ends of the arc-shaped board, wherein the top board and the bottom board are both horizontal boards, and the horizontal boards are arc-shaped.
The opening of the second plastic board 12 faces the first plastic board 11 and is vertically fixed on one side surface of the first plastic board 11 to form the vacuum plastic frame 1, and the second plastic board 12 completely covers the whole spraying window 13, so that a cavity is formed inside the vacuum plastic frame 1.
The foaming liquid spraying component 3 comprises a spraying pipe 31 and a spraying head 32, the spraying pipe 31 is vertically arranged, the spraying head 32 is arranged on one side of the bottom of the spraying pipe 31, and a water valve is further arranged on the spraying pipe 31.
Set up first connector, second connector and the third connector with the cavity intercommunication on the roof, a vacuum meter 2 is installed at first connector, a regulating valve 4 is installed to second connector department, foaming liquid spray set 3 is installed to third connector department for the cavity is arranged in to shower head 32 middle position department, the water valve of the inside spray window 13 of cavity, and the cavity is arranged in to the water valve outside, and shower head 32 sets up towards first plastic slab 11, makes spray region 33 of shower head 32 cover spray window 13 completely.
The bottom plate is provided with a recovery port communicated with the cavity, and a recovery pipeline and a recovery valve 5 are arranged at the recovery port.
A sealing gasket 6 is further arranged on one side surface of the first plastic plate 11 away from the second plastic plate 12, and the width of the sealing surface of the sealing gasket 6 = three times of the diameter of the heat exchange tube, so as to be used for sealing and connecting the device to be detected.
The material of the sealing gasket 6 is sealing rubber, and the sealing rubber strip is made of a winding structure.
The working principle of this patent:
as shown in figure 4, this device all installs in the both sides of heat exchanger 7 tube sheet, install vacuum plastic frame on the heat exchanger, make whole heat exchanger tube head surface arrange the cavity in, carry out the evacuation to the cavity through adjusting the valve and to forming a vacuum cavity, foaming liquid spray assembly utilizes the negative pressure that the evacuation produced to spray foaming liquid on whole heat exchanger tube head, direct convenient observation pressure is stable, whether there is the foam to produce, after the experiment, retrieve foaming liquid through retrieving the valve, can reduce the foaming liquid use amount, also can guarantee on-the-spot cleanness, reduce the detection cost.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. A portable vacuum detection device, characterized in that: comprises a vacuum plastic frame, a vacuum meter and a foaming liquid spraying component;
the vacuum plastic frame comprises a first plastic plate and a second plastic plate, and the first plastic plate and the second plastic plate are transparent plates;
the vacuum plastic frame is characterized in that the first plastic plate is a rectangular plate, a rectangular spraying window is arranged in the middle of the first plastic plate, the second plastic plate is an Contraband-shaped plate and comprises a vertically arranged arc-shaped plate, and a top plate and a bottom plate which are vertically arranged at two ends of the arc-shaped plate, the top plate and the bottom plate are both horizontal plates, the horizontal plates are arc-shaped, the opening of the second plastic plate faces the first plastic plate and is vertically fixed on one side surface of the first plastic plate to form the vacuum plastic frame, and the second plastic plate completely covers the whole spraying window, so that a cavity is formed inside the vacuum plastic frame;
the foaming liquid spraying assembly comprises a spraying pipe and a spraying head, the spraying pipe is vertically arranged, the spraying head is arranged on one side of the bottom of the spraying pipe, and a water valve is further arranged on the spraying pipe;
the top plate is provided with a first connecting port, a second connecting port and a third connecting port which are communicated with the cavity, the first connecting port is provided with a vacuum meter, the second connecting port is provided with an adjusting valve, the third connecting port is provided with the foaming liquid spraying assembly, so that the spraying head is arranged at the middle position of the spraying window in the cavity, the water valve is arranged outside the cavity, and the spraying head is arranged towards the first plastic plate, so that the spraying area of the spraying head completely covers the spraying window;
the bottom plate is provided with a recovery port communicated with the cavity, and the recovery port is provided with a recovery pipeline and a recovery valve.
2. A portable vacuum testing device according to claim 1, wherein: and a sealing gasket is also arranged on one side surface of the first plastic plate, which is far away from the second plastic plate.
3. A portable vacuum testing device according to claim 2, wherein: the material of sealed pad is sealing rubber, adopts winding arrangement to make through the sealing rubber strip.
4. A portable vacuum testing device according to claim 2, wherein: the width of the sealing surface of the sealing gasket = three times the diameter of the heat exchange tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122697359.7U CN216386190U (en) | 2021-11-05 | 2021-11-05 | Portable vacuum detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122697359.7U CN216386190U (en) | 2021-11-05 | 2021-11-05 | Portable vacuum detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216386190U true CN216386190U (en) | 2022-04-26 |
Family
ID=81250199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122697359.7U Active CN216386190U (en) | 2021-11-05 | 2021-11-05 | Portable vacuum detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216386190U (en) |
-
2021
- 2021-11-05 CN CN202122697359.7U patent/CN216386190U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216386190U (en) | Portable vacuum detection device | |
| CN109470426B (en) | Door and window air tightness detection equipment | |
| CN201285339Y (en) | Vacuum leakage detector for tank bottom | |
| CN212228314U (en) | Airtight detection device of people's air defense door | |
| CN107462371B (en) | Deposit lid gas tightness testboard | |
| CN214149728U (en) | Pipeline detection device for municipal administration | |
| CN212391176U (en) | Detection device for natural gas pipeline | |
| CN212391175U (en) | Pipe fitting leakproofness check out test set | |
| CN206095896U (en) | Aggressivity CO2 environmental test device | |
| CN216012616U (en) | Municipal administration water supply and drainage pipeline leakproofness detection device | |
| CN211478290U (en) | Water quality testing device for environmental assessment | |
| CN210719579U (en) | Device for detecting air tightness of engineering on site door | |
| CN210802815U (en) | Vacuum leak hunting machine | |
| CN205483429U (en) | Porous work piece device that leaks hunting | |
| CN113739999A (en) | Vacuum leakage inspection device based on differential pressure method | |
| CN218444357U (en) | Airtight visual detection device of air cleaner | |
| CN210834629U (en) | Anticorrosive paint film adhesive force tester | |
| CN219657106U (en) | Detection device for waterproof roof | |
| CN218330483U (en) | Polyvinyl chloride corrugated pipe air tightness detection device | |
| CN216815908U (en) | Detection device for building pipeline installation | |
| CN215001011U (en) | Chemical plant leaks alarm device with poisonous and harmful gas | |
| CN220670874U (en) | Counter basin negative pressure water leakage detection device | |
| CN216925955U (en) | Air tightness detector device convenient for civil air defense | |
| CN217155735U (en) | Air tightness testing device for civil air defense anti-explosion floor drain | |
| CN212275469U (en) | Water pressure testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |