CN113432808A - Device for vacuum test of storage tank bottom plate - Google Patents
Device for vacuum test of storage tank bottom plate Download PDFInfo
- Publication number
- CN113432808A CN113432808A CN202110822032.XA CN202110822032A CN113432808A CN 113432808 A CN113432808 A CN 113432808A CN 202110822032 A CN202110822032 A CN 202110822032A CN 113432808 A CN113432808 A CN 113432808A
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- Prior art keywords
- hole
- vacuum
- sealing plate
- rubber sponge
- plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2884—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for welds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/145—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for welds
Abstract
The invention belongs to the technical field of storage tank installation and pressure vessel manufacturing engineering construction, and particularly relates to a device for a storage tank bottom plate vacuum test, which comprises the following components: the device comprises a sealing plate, a vacuum generator, a vacuum meter, an emptying valve and rubber sponge for sealing the sealing plate; the sealing plate is provided with a first through hole, a second through hole and a third through hole; the vacuum generator, the vacuum meter and the emptying valve are respectively arranged at the first through hole, the second through hole and the third through hole, and the rubber sponge is fixedly connected with the bottom of the sealing plate. The closing plate edge is equipped with the gasbag, is equipped with a plurality of ball in the gasbag, and the gasbag intercommunication has the air pump. The scheme utilizes compressed air to extract vacuum, and has the advantages of light equipment, easy carrying and low cost; form confined space through rubber sponge and bottom plate, rubber sponge compresses easily, and manual operation extrusion closing plate forms confined space easier, and intensity of labour is little, and rubber sponge can make the sealed chamber sealed effect that forms better, improves detection efficiency and quality.
Description
Technical Field
The invention belongs to the technical field of storage tank installation and pressure container manufacturing engineering construction, and particularly relates to a device for a storage tank bottom plate vacuum test.
Background
The storage tank is used for storing chemical substances extracted from acid, alkali, alcohol, gas, liquid and the like. Storage tanks are widely used in north China, and mainly comprise the following components according to different materials: polyethylene storage tanks, polypropylene storage tanks, glass fiber reinforced plastic storage tanks, ceramic storage tanks, rubber storage tanks, stainless steel storage tanks, and the like.
In various storage tank installation construction, a welding seam vacuum test (checking the tightness of a welding seam) of a bottom plate is a very important process, and the accuracy of a detection result directly influences the quality and the safety performance of the storage tank. The original vacuum test method is always used for years, a vacuum box method is used, the edges of the sub-grid force plate are manufactured by using a steel plate, a top plate is made of glass, the lower surface of the top plate is in contact with a bottom plate and is sealed by using daub, the vacuum box is vacuumized by using a vacuum pump, and a welding line is observed and detected. The vacuum box and the vacuum pump are heavy, the vacuum pump is slow to exhaust air, the daub seal is poor, the labor intensity of constructors is high, the detection efficiency is low, and the accuracy is low.
Disclosure of Invention
This scheme provides a device that is used for storage tank bottom plate vacuum test who improves detection efficiency.
In order to reach above-mentioned purpose, this scheme provides a storage tank bottom plate vacuum test's device, including the closing plate, still include: the vacuum generator, the vacuum gauge, the emptying valve and rubber sponge for sealing the sealing plate; the sealing plate is provided with a first through hole, a second through hole and a third through hole; the vacuum generator is fixedly arranged at the first through hole and is communicated with the first through hole; the vacuum meter is fixedly arranged at the second through hole and is communicated with the second through hole; the emptying valve is fixedly arranged at the third through hole and is communicated with the third through hole; the rubber sponge is fixedly connected with the bottom of the sealing plate; the closing plate edge is equipped with the gasbag, is equipped with a plurality of ball in the gasbag, gasbag one end and closing plate fixed connection, and the gasbag intercommunication has the air pump.
The principle of the scheme is as follows: the sealing plate is drilled, through holes with corresponding sizes are manufactured on the sealing plate according to the sizes of the vacuum generator, the vacuum gauge and the emptying valve, the vacuum generator, the vacuum gauge and the emptying valve are installed at the corresponding through holes, and meanwhile, the corresponding vacuum generator, the vacuum gauge and the emptying valve are sealed with the through hole communicating part through glue. And adhering rubber sponge to the bottom of the sealing plate to make the edge of the rubber sponge partially exceed the edge of the sealing plate. And placing the sealing plate on the welding line, and pressing the rubber sponge to form a sealing cavity between the sealing plate and the welding line. The air pump is used for inflating the air bag, so that the air bag is expanded to contact objects around the welding line, the sealing performance of the sealing cavity is improved, meanwhile, the sealing cavity can be formed between the sealing plate and the welding line conveniently and quickly, the ball rolls along with the expansion of the air bag, the air bag is compressed, and the sealing performance of the sealing cavity is improved; compressed air is conveyed to a compressed air inlet of a vacuum generator through an air pipe, a sealing cavity between the sealing plate and the welding line is vacuumized according to the Venturi tube principle, and the vacuum meter is used for measuring the air pressure of the sealing cavity between the sealing plate and the welding line.
The scheme has the beneficial effects that: the vacuum generator is used for extracting vacuum by utilizing compressed air, so that the equipment is light and convenient, is easy to carry and has low cost; form confined space through rubber sponge and bottom plate, rubber sponge compresses easily, and manual operation extrusion closing plate forms confined space easier, and intensity of labour is little, and rubber sponge can make the sealed chamber sealed effect that forms better, improves detection efficiency and quality.
Further, a first magnet is fixedly connected to the rubber sponge; the second magnet is placed on the sealing plate and is repelled with the first magnet. The second magnet is used for repelling the first magnet, when the welding seam is uneven, a plurality of positions need to be pressed, a plurality of persons need to press to form a sealing cavity, and when the welding seam is large, a large force is needed to press. The repulsive force of the magnet can replace manual pressing of the rubber sponge, working strength can be reduced, the rubber sponge is tightly attached to the sealing plate, and the rubber sponge is prevented from expanding to influence the detection result of the air tightness of the welding line of the bottom plate.
Furthermore, a transparent observation window is fixedly arranged on the sealing plate. Before carrying out the welding seam gas tightness test, scribble soapy water on the welding seam in advance, through observing whether bubble production has in the welding seam department, it is good to have the bubble production to indicate the bottom plate gas tightness, can carry out the result contrast with the vacuum gauge, judges whether the vacuum gauge is intact, makes bottom plate welding seam gas tightness testing result more accurate.
Furthermore, a sealing gasket is arranged at the edge of the transparent window. Prevent that there is the gap in transparent window department, influence bottom plate welding seam gas tightness testing result accuracy.
Further, still including the supporting shoe that is used for restricting the sponge removal, supporting shoe and closing plate bottom fixed connection, the supporting shoe is located the rubber sponge center. The supporting block plays a supporting role and prevents the sponge from being pressed into the vacuum cavity by vacuum negative pressure.
Further, be equipped with the handle on the closing plate, the handle sets up on the closing plate surface with articulated mode, conveniently gets to put test device and convenient operation.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a plan view of a sealing plate according to an embodiment of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a vacuum generator 1, a vacuum gauge 2, an emptying valve 3, a sealing plate 4, a supporting block 5, rubber sponge 6 and an air bag 7.
Example (b):
as shown in the attached drawing 1, the device for the vacuum test of the storage tank bottom plate comprises a sealing plate 4, a vacuum generator 1, a vacuum meter 2, an emptying valve 3 and a rubber sponge 6 for sealing the sealing plate 4, wherein the sealing plate 4 is made of a subsfrate force plate, a handle is arranged on the sealing plate 4, and is arranged on the surface of the sealing plate 4 in a hinged mode, so that the test device is conveniently taken and placed and is convenient to operate. Be equipped with first through-hole, second through-hole and third through-hole on the closing plate 4, vacuum generator 1 passes through trachea and first through-hole intercommunication, and vacuum generator 1 trachea and first through-hole intercommunication department scribble the viscose, make vacuum generator 1 and first through-hole intercommunication department sealed. The vacuum meter 2 is communicated with the second through hole, and the joint of the vacuum meter 2 and the second through hole is sealed by coating adhesive on the joint of the vacuum meter 2 and the second through hole. The emptying valve 3 is communicated with the third through hole, and the joint of the emptying valve 3 and the third through hole is coated with viscose glue, so that the joint of the emptying valve 3 and the third through hole is sealed. The rubber sponge 6 and the bottom of the sealing plate 4 are fixed together by using adhesive, and the adhesive is AB adhesive.
The sealing plate 4 is drilled, through holes with corresponding sizes are manufactured in the sealing plate 4 according to the sizes of the vacuum generator 1, the vacuum meter 2 and the emptying valve 3, the vacuum generator 1, the vacuum meter 2 and the emptying valve 3 are installed at the corresponding through holes, meanwhile, the connecting positions of the vacuum generator 1, the vacuum meter 2 and the emptying valve 3, which are close to the corresponding through holes, are coated with adhesive to seal, and the air tightness detection result of a welding seam is prevented from being influenced.
The rubber sponge 6 is stuck on the bottom of the sealing plate 4, so that the edge part of the rubber sponge 6 exceeds the edge of the sealing plate 4. And placing the sealing plate 4 on the welding line, and pressing the rubber sponge 6 to form a sealing cavity between the sealing plate 4 and the welding line. Compressed air is conveyed to a compressed air inlet of the vacuum generator 1 through an air pipe, a sealing cavity between the sealing plate 4 and a welding line is vacuumized according to the Venturi tube principle, and the vacuum meter 2 is used for measuring the air pressure of the sealing cavity between the sealing plate 4 and the welding line.
The rubber sponge 6 is fixedly connected with a first magnet, the sealing plate 4 is provided with a second magnet, and the second magnet is repelled from the first magnet. The second magnet is used for repelling the first magnet, when the welding seam is uneven, a plurality of positions need to be pressed, a plurality of persons need to press to form a sealing cavity, and when the welding seam is large, a large force is needed to press. The repulsive force of the magnet can replace manual pressing of the rubber sponge 6, so that the working strength can be reduced, the rubber sponge 6 is tightly attached to the sealing plate 4, and the rubber sponge 6 is prevented from expanding to influence the detection result of the air tightness of the welding line of the bottom plate.
4 edge bonding of closing plate has gasbag 7, as shown in figure 2, and gasbag 7 is located closing plate 4 edge all around, 4 edges of closing plate are equipped with gasbag 7, and gasbag 7 is ring shape, is equipped with if 20 balls in the gasbag 7, ball evenly distributed is in gasbag 7, 7 one end of gasbag and 4 fixed connection of closing plate, and 7 intercommunications of gasbag have the air pump. The air pump is an INTEX manual air pump. Use the air pump to aerify in 7 to the gasbag, make 7 inflation contacts the object around the welding seam of gasbag, improve the leakproofness in sealed chamber, simultaneously can make things convenient for fast and form sealed chamber between closing plate and welding seam, the ball rolls along with 7 expansions of gasbag, compresses tightly gasbag 7, improves sealed chamber leakproofness. When the number of personnel is less, the air pump and the air bag 7 can be directly used to form a sealed cavity between the sealing plate and the welding line, so that the forming speed of the sealed cavity is increased, and the detection is rapidly completed.
Be equipped with transparent observation window on the closing plate 4, cut out at closing plate 4 middle part and cut out with the logical groove of transparent window size assorted, install the transparent window on leading to the groove again, scribble the viscose at the contact position of transparent window and logical groove, make transparent window and closing plate 4 fixed together, seal the junction of transparent window and logical groove simultaneously, prevent to influence the gas tightness testing result of welding seam. Before carrying out the welding seam gas tightness test, scribble soapy water on the welding seam in advance, through observing whether there is the bubble production in welding seam department, it is good to have the bubble production to indicate the bottom plate gas tightness, can carry out the result contrast with vacuum table 2, judges whether vacuum table 2 is intact, makes bottom plate welding seam gas tightness testing result more accurate. The edge of the transparent window is provided with a sealing gasket. Prevent that there is the gap in transparent window department, influence bottom plate welding seam gas tightness testing result accuracy.
Still include the supporting shoe 5 that is used for restricting the sponge removal, supporting shoe 5 and closing plate 4 bottom fixed connection, supporting shoe 5 is located the center of rubber sponge 6. The supporting block 5 is made of square steel, and the supporting block 5 plays a supporting role and prevents the sponge from being pressed into the vacuum cavity by vacuum negative pressure.
The operation method of the scheme comprises the following steps: drilling is carried out on the sealing plate 4, through holes with corresponding sizes are manufactured on the sealing plate 4 according to the sizes of the vacuum generator 1, the vacuum meter 2 and the emptying valve 3, the vacuum generator 1, the vacuum meter 2 and the emptying valve 3 are installed at the corresponding through holes, meanwhile, the vacuum generator 1, the vacuum meter 2 and the emptying valve 3 seal the corresponding through holes, viscose glue is coated at the positions of the corresponding through holes, and the joints of the vacuum generator 1, the vacuum meter 2 and the emptying valve 3 and the corresponding through holes are sealed. The rubber sponge 6 is stuck on the bottom of the sealing plate 4, so that the edge part of the rubber sponge 6 exceeds the edge of the sealing plate 4. The method comprises the steps of coating soapy water on a welding line to be detected, placing a sealing plate 4 on the welding line, and pressing a rubber sponge 6 to form a sealing cavity between the sealing plate 4 and the welding line. Utilize the trachea to carry compressed air to vacuum generator 1's compressed air inlet in, according to the venturi principle, take out into the vacuum with the sealed chamber between closing plate 4 and welding seam, vacuum table 2 is used for measuring the atmospheric pressure of the sealed chamber between closing plate 4 and welding seam, see that vacuum table 2's pressure value contrasts with atmospheric pressure numerical value, if be less than atmospheric pressure numerical value and indicate that the welding seam tightness is good, observe whether the fertile soap water of welding seam department produces the steam pocket through the transparent window, judge through observing that the bubble produces and compare with vacuum table 2 numerical value, judge the contrast of vacuum table 2 numerical value, if there is not the bubble to produce, then in time overhaul the device. Use the air pump to aerify in 7 to the gasbag, make 7 inflation contacts the object around the welding seam of gasbag, improve the leakproofness in sealed chamber, simultaneously can make things convenient for fast and form sealed chamber between closing plate and welding seam, the ball rolls along with 7 expansions of gasbag, compresses tightly gasbag 7, improves sealed chamber leakproofness. According to the scheme, the vacuum generator 1 is used for extracting vacuum by utilizing compressed air, so that the equipment is light and convenient, is easy to carry and has low cost; form confined space through rubber sponge 6 and bottom plate, rubber sponge 6 compresses easily, and manual operation extrusion closing plate 4 forms confined space easier, and intensity of labour is little, and rubber sponge 6 can make the sealed chamber that forms sealed effect better, improves detection efficiency and quality.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A device for storage tank bottom plate vacuum test, includes closing plate (4), its characterized in that still includes: the device comprises a vacuum generator (1), a vacuum meter (2), a blow-down valve (3) and a rubber sponge (6) for sealing a sealing plate (4); the sealing plate (4) is provided with a first through hole, a second through hole and a third through hole; the vacuum generator (1) is fixedly arranged at the first through hole, and the vacuum generator (1) is communicated with the first through hole; the vacuum meter (2) is fixedly arranged at the second through hole, and the vacuum meter (2) is communicated with the second through hole; the emptying valve (3) is fixedly arranged at the third through hole, and the emptying valve (3) is communicated with the third through hole; the rubber sponge (6) is fixedly connected with the bottom of the sealing plate (4); the edge of the sealing plate (4) is provided with an air bag (7), a plurality of balls are arranged in the air bag (7), one end of the air bag (7) is fixedly connected with the sealing plate (4), and the air bag (7) is communicated with an air pump.
2. The apparatus of claim 1, wherein the apparatus comprises: the rubber sponge (6) is fixedly connected with a first magnet; and a second magnet is arranged on the sealing plate (4), and the second magnet is repelled with the first magnet.
3. The apparatus of claim 1, wherein the apparatus comprises: and a transparent observation window is fixedly arranged on the sealing plate (4).
4. The apparatus of claim 3, wherein: and a sealing gasket is arranged at the edge of the transparent window.
5. The apparatus of claim 1, wherein the apparatus comprises: still including supporting shoe (5) that are used for restricting the sponge removal, supporting shoe (5) and closing plate (4) bottom fixed connection, supporting shoe (5) are located rubber sponge (6) center.
6. The apparatus of claim 1, wherein the apparatus comprises: the sealing plate (4) is provided with a handle, and the handle is arranged on the surface of the sealing plate (4) in a hinged mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110822032.XA CN113432808A (en) | 2021-07-20 | 2021-07-20 | Device for vacuum test of storage tank bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110822032.XA CN113432808A (en) | 2021-07-20 | 2021-07-20 | Device for vacuum test of storage tank bottom plate |
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| Publication Number | Publication Date |
|---|---|
| CN113432808A true CN113432808A (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110822032.XA Pending CN113432808A (en) | 2021-07-20 | 2021-07-20 | Device for vacuum test of storage tank bottom plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148164A (en) * | 2023-04-17 | 2023-05-23 | 森凯利建设有限公司 | On-spot detection device of weatherability of silicone adhesive for glass curtain wall |
-
2021
- 2021-07-20 CN CN202110822032.XA patent/CN113432808A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148164A (en) * | 2023-04-17 | 2023-05-23 | 森凯利建设有限公司 | On-spot detection device of weatherability of silicone adhesive for glass curtain wall |
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