CN110987631A - Heat supply pipeline pressure testing device - Google Patents
Heat supply pipeline pressure testing device Download PDFInfo
- Publication number
- CN110987631A CN110987631A CN201911095198.5A CN201911095198A CN110987631A CN 110987631 A CN110987631 A CN 110987631A CN 201911095198 A CN201911095198 A CN 201911095198A CN 110987631 A CN110987631 A CN 110987631A
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- Prior art keywords
- pipeline
- pressure
- pressure testing
- supporting plate
- pressure test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
Abstract
The invention relates to a pressure test device for a heat supply pipeline, which comprises a water tank, a water supply pipe, a pressure test pipeline and a water outlet pipe, wherein the water supply pipe and the water outlet pipe are communicated with the water tank and the pressure test pipeline; the two ends of the pressure test pipeline are connected with pipeline joints, a pressure gauge is movably connected above the pressure test pipeline, and the bottom of the pressure test pipeline is connected with an air pump and a pressure release valve; the bottom of the pressure test pipeline is also provided with a protective device, and the protective device comprises a fixed hoop, a first supporting plate, a supporting column, a buffer spring, a second supporting plate, a bracket, a gear and a push rod. The invention not only solves the problem of poor safety during pressure test, but also has the advantages of convenient pressure gauge replacement, high pressure test efficiency and the like.
Description
Technical Field
The invention relates to the technical field of pipeline pressure test, in particular to a pressure test device for a heat supply pipeline.
Background
The pipeline is the main way of heat medium delivery, and the heat pipe network is also called as heat pipeline, starting from boiler room, direct combustion machine room, heat supply center, etc., and leading from the heat source to the heat supply pipeline of the building heat inlet. A plurality of heat supply pipelines form a pipe network. The design pressure of the heat supply hot water medium is less than or equal to 2.5MPa, and the design temperature is less than or equal to 200 ℃; the design pressure of the heating steam medium is less than or equal to 1.6MPa, however, the pressure resistance in the pipeline is required to be tested before the heating pipeline is put into use, the heating pipeline can be used after meeting the requirements, and the pressure in the pipeline is required to be tested regularly after the heating pipeline is put into use, so that the pipeline conveying safety is ensured.
The pressure testing device of current heat supply pipeline has very big safety problem, if the bearing capacity of pipeline is lower among the pressure testing process, appears easily that the back pipeline that pressurizes breaks and seriously harms personal safety even, lacks protector and protects on-spot pressure testing tester.
Disclosure of Invention
The invention aims to solve the technical problems, and provides a heat supply pipeline pressure testing device which not only solves the problem of poor safety during pressure testing, but also has the advantages of convenience in pressure gauge replacement, high pressure testing efficiency and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: a pressure test device for a heat supply pipeline comprises a water tank, a water supply pipe, a pressure test pipeline and a water outlet pipe, wherein the water supply pipe and the water outlet pipe are used for communicating the water tank with the pressure test pipeline; the two ends of the pressure test pipeline are connected with pipeline joints, a pressure gauge is movably connected above the pressure test pipeline, and the bottom of the pressure test pipeline is connected with an air pump and a pressure release valve; the pressure testing pipeline bottom still is equipped with protector, protector includes fixed staple bolt, first layer board, support column, buffer spring, second layer board, bracket, gear and push rod, fixed staple bolt cover is established outside the pressure testing pipeline, the first layer board of its bottom fixed connection, first layer board bottom is fixed with the support column, the support column top cover is equipped with buffer spring, both ends respectively with first layer board and second layer board swing joint about the buffer spring, the second layer board is worn to establish on the support column, and its bottom middle-end fixedly connected with bracket, the support column all meshes at the position both sides of second layer board below has the gear, the gear outside all meshes has the push rod, the push rod is worn to establish on the second layer board.
Preferably, the bottom of the pressure gauge is communicated with a pressure test pipeline through a communicating pipe, the communicating pipe is a U-shaped pipe, and a ball valve is further arranged on the communicating pipe.
Preferably, the bottom of the pressure testing device is also provided with an operating platform, a water tank and an air pump are fixed on the operating platform, and the output end of the air pump is communicated with the pressure testing pipeline through an air outlet pipe.
More preferably, the tray stands on an operation table.
Preferably, the number of the fixed hoops is two, the two fixed hoops are symmetrically arranged at two ends of the pressure test pipeline, the bottoms of the two fixed hoops are fixedly connected with the left side and the right side of the upper end face of the first supporting plate, and the middle of the upper end face of the first supporting plate is fixedly connected with the pressure test pipeline.
Preferably, the push rod penetrates through and is movably connected to the second supporting plate, the push rod is arranged below the first supporting plate, and the distance from the push rod to the first supporting plate is smaller than half of the original length of the buffer spring.
More preferably, the circumference below the supporting column is provided with a thread, the lower part of the push rod is also provided with a thread, the supporting column and the push rod are both meshed with a gear through the thread, and the gear is fixed at the bottom of the second supporting plate and can rotate.
Preferably, one end of the water inlet pipe, which is far away from the water pump, is fixedly connected with a filter screen.
The invention has the beneficial effects that:
1. according to the invention, the protection device is arranged below the pressure test pipeline, and through the matched arrangement among the fixed hoops, the first supporting plate, the supporting columns, the buffer springs, the second supporting plate, the brackets, the gears and the push rods in the protection device, when the pipeline is broken, the two fixed hoops prevent fragments from damaging the body of an operator, and meanwhile, the supporting columns, the buffer springs, the second supporting plate, the gears and the push rods are matched to buffer the pressure in the pressure test pipeline, and meanwhile, the rotation of the gears can convert the direction of the force and apply a thrust to the first supporting plate in the opposite direction, so that the safety of the operator can be effectively improved;
2. the water pump conveys water in the water tank into the pressure test pipeline through the water conveying pipe, then the two sides of the pressure test pipeline are sealed through the stop valve, air is added into the pressure test pipeline through the air pump to increase the internal pressure, the pressure gauge is used for reading and measuring, and the ball valve is arranged, so that the pressure gauge can be replaced under the condition of re-adding air in case of pressure test due to air leakage, and the pressure test efficiency is improved; according to the invention, the filter screen is arranged on the water inlet pipe, so that impurities in the water tank can be prevented from entering the pressure test pipeline to influence the authenticity of pressure test data, the pressure in the pressure test pipeline can be quickly released through the pressure release valve and the water discharge electromagnetic valve, and water is delivered to the water tank through the water outlet pipe, so that water resources are effectively saved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic structural view of a pressure test member according to the present invention.
Description of reference numerals: 1. the water tank, 2, the water pump, 3, the water pipe, 4, the stop valve, 5, the pressure testing pipeline, 6, the pipe joint, 7, the air pump, 8, the relief valve, 9, the manometer, 10, the sluicing solenoid valve, 11, the outlet pipe, 14, the filter screen, 15, the operation panel, 16, protector, 1601, fixed staple bolt, 1602, first layer board, 1603, the support column, 1604, buffer spring, 1605, the second layer board, 1606, the bracket, 1607, the gear, 1608, the push rod.
Detailed Description
The technical solution of the present invention will be clearly and completely described with reference to fig. 1-3.
As shown in fig. 1, the invention is a pressure testing device for a heat supply pipeline, comprising a water tank 1, a water supply pipe 3, a pressure testing pipeline 5 and a water outlet pipe 11, wherein the water supply pipe 3 and the water outlet pipe 11 are used for communicating the water tank 1 with the pressure testing pipeline 5, water is stored in the water tank 1, a water pump 2 is arranged at the bottom of the water tank 1, the water inlet end of the water pump 2 is communicated with the water tank 1 through a water inlet pipe, the water outlet end is communicated with the water supply pipe 3, and a filter screen 14 is arranged. The water supply pipe 3 and the water outlet pipe 11 are respectively provided with a stop valve 4 and a water discharge electromagnetic valve 10. As shown in fig. 3, two ends of the pressure test pipeline 5 are connected with pipeline joints 6, a pressure gauge 9 is movably connected above the pressure test pipeline 5, and the bottom of the pressure test pipeline 5 is connected with an air pump 7 and a pressure release valve 8.
As shown in fig. 1 and 2, a protecting device 16 is further disposed at the bottom of the pressure test pipeline 5, and the protecting device 16 includes a fixing hoop 1601, a first supporting plate 1602, a supporting column 1603, a buffering spring 1604, a second supporting plate 1605, a bracket 1606, a gear 1607 and a push rod 1608. Fixed staple bolt 1601 overlaps and establishes in pressure testing pipeline 5 outside, the first layer board 1602 of its bottom fixed connection, first layer board 1602 bottom is fixed with support column 1603, support column 1603 top cover is equipped with buffer spring 1604, buffer spring 1604 upper and lower both ends respectively with first layer board 1602 and second layer board 1605 swing joint, second layer board 1605 is worn to establish on support column 1603, its bottom middle-end fixedly connected with bracket 1606, support column 1603 all meshes in the position both sides of second layer board 1605 below and has gear 1607, the gear 1607 outside all meshes and has push rod 1608, push rod 1608 is worn to establish on second layer board 1605. The bottom of the pressure testing device is also provided with an operating platform 15, a water tank 1 and an air pump 7 are fixed on the operating platform 15, and the output end of the air pump 7 is communicated with the pressure testing pipeline 5 through an air outlet pipe. The bracket 1606 also stands on the console 15, and supports the entire guard.
As shown in fig. 2, in this embodiment, in order to better ensure the safety of the apparatus, two sets of the fixing hoop 1601, the supporting column 1603, the buffer spring 1604, the gear 1607 and the push rod 1608 are provided. Two fixed staple bolts 1601 are symmetrically installed at the two ends of the pressure test pipeline 5, the bottom of the two fixed staple bolts is fixedly connected with the left side and the right side of the upper end face of the first supporting plate 1602, and the middle part of the upper end face of the first supporting plate 1602 is fixedly connected with the pressure test pipeline 5. The circumference below two support columns 1603 is provided with threads, the threads are arranged below four push rods 1608, one support column 1603 and the two push rods 1608 are meshed with two gears 1607 through the threads, the gears 1607 are fixed at the bottom of the second supporting plate 1605, and the gears 1607 can rotate. The four push rods 1608 penetrate through and are movably connected to the second support plate 1605, the push rods 1608 are arranged below the first support plate 1602, and the distance from the push rods 1608 to the first support plate 1602 is smaller than half of the original length of the buffer spring 1604.
Because current pressure testing arrangement need add water in the pressure testing pipeline at the pressure testing in-process, then continuous gas that adds utilizes the manometer to test its bearing capacity, but the manometer breaks down the back when testing, can not change, but need sluicing, lose water again after the gas and add the pressure test, waste time, reduce efficiency. Therefore, in this embodiment, the bottom of the pressure gauge 9 is communicated with the pressure test pipeline 5 through a communicating pipe, the communicating pipe is a U-shaped pipe, and a ball valve is further arranged on the U-shaped pipe. In the embodiment, the pressure gauge 9 can be replaced by arranging the ball valve only under the condition of air leakage and re-air filling pressure test, so that the pressure test efficiency is improved.
When the water pressure testing device is used, water in the water tank 1 is conveyed into the pressure testing pipeline 5 through the water conveying pipe 3 through the water pump 2, then two sides of the pressure testing pipeline 5 are sealed through the stop valve 4, air is added into the pressure testing pipeline 5 through the air pump 7 to increase the internal pressure of the pressure testing pipeline, reading and measuring are carried out through the pressure gauge 9, impurities in the water tank 1 can be prevented from entering the pressure testing pipeline 5 to influence the authenticity of pressure testing data through the arrangement of the filter screen 14, the pressure in the pressure testing pipeline 5 can be quickly released through the pressure release valve 8 and the water drain electromagnetic valve 10, the pressure testing efficiency is improved, and the water is conveyed to the water tank 1 through the water outlet pipe 11, so that water resources are effectively.
The invention protects the personal safety of operators in the pressure test process through the protective device 16, and the specific action mechanism is as follows:
1. in case of pipeline breakage caused by the fact that the pressure test pipeline cannot bear the pressure of the pressure test pipeline in the pressure test gas filling process, the two fixing hoops 1601 tightly hold the two ends of the pressure test pipeline 5 to prevent fragments from damaging the bodies of operators; meanwhile, the pressure test pipeline 5 has a downward pressure on the first supporting plate 1602, so that the supporting column 1603 is also subjected to the downward pressure, the gear 1607 on the left side of the supporting column 1603 tends to rotate clockwise, the gear 1607 on the right side tends to rotate anticlockwise, and the resistance of the push rods 1608 on the two sides is applied, so that the downward pressure of the supporting column 1603 is converted into an upward thrust for the first supporting plate 1602 under the interaction of the supporting column 1603, the gear 1607 and the push rods 1608; furthermore, the bracket 1606 holds the second support plate 1605, and buffers the downward pressure by the buffer spring 1604, thereby effectively improving the safety of the operator.
2. In case of leakage or even breakage of the pressure test pipeline 5 in the process of water or gas adding during pressure test, the protection device of the invention can also provide protection for the pressure test pipeline 5 and surrounding operators, if the pressure test pipeline is broken, the action mechanism of the protection device is as above, if the pressure test pipeline is leaked, the water pump 2 or the air pump 7 needs to be stopped, when the pressure test pipeline 5 is stopped, the pressure test pipeline 5 can be subjected to a counter pressure opposite to the water pressure or the air pressure when the pressure test pipeline is not stopped, the pressure test pipeline 5 can vibrate up and down, when the pressure test pipeline 5 vibrates downwards, the first supporting plate 1602 can be provided with a downward pressure, which is the same as the protection action mechanism, and detailed description is omitted, when the pressure test pipeline 5 vibrates upwards, the first supporting plate 1602 can be pulled to have an upward tension, and the supporting column 1603 can also be subjected to an upward tension, and the left gear 1607 of the support column 1603 has a tendency of counterclockwise rotation, the right gear 1607 has a tendency of clockwise rotation, and the two sides of the support column 1603 are provided with resistance of the push rods 1608, so that under the interaction of the support column 1603, the gear 1607 and the push rods 1608, the upward tension of the support column 1603 is converted into a direction to provide a downward tension for the first support plate 1602, and furthermore, the buffer spring 1604 is stretched to provide a downward tension for the first support plate 1602, so that the pressure test pipeline 5 can be prevented from generating large vertical vibration and cracking, the pressure test pipeline 5 is protected, and meanwhile, a safe operating environment is provided for operators.
The above description is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the technical principle of the present invention, and these should be construed as the scope of the present invention.
The parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part is not described, the conventional means such as bolts, rivets, welding and the like mature in the prior art are adopted, the machines and equipment are of the conventional type in the prior art, the circuit connection of the equipment is of the conventional connection mode in the prior art, the detailed description is omitted, and the content which is not described in detail in the specification belongs to the prior art known by persons skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a heat supply pipeline pressure testing device, includes water tank (1), flow pipe (3), pressure testing pipeline (5) and outlet pipe (11), and flow pipe (3) and outlet pipe (11) communicate water tank (1) and pressure testing pipeline (5), its characterized in that: a water pump (2) is arranged in the water tank (1), the water inlet end of the water pump (2) is communicated with the water tank (1) through a water inlet pipe, the water outlet end of the water pump is communicated with a water supply pipe (3), and a stop valve (4) and a water discharge electromagnetic valve (10) are respectively arranged on the water supply pipe (3) and a water outlet pipe (11); two ends of the pressure test pipeline (5) are connected with pipeline joints (6), a pressure gauge (9) is movably connected above the pressure test pipeline (5), and the bottom of the pressure test pipeline is connected with an air pump (7) and a pressure release valve (8); the pressure test pipeline is characterized in that a protective device (16) is further arranged at the bottom of the pressure test pipeline (5), the protective device (16) comprises a fixed hoop (1601), a first supporting plate (1602), a supporting column (1603), a buffer spring (1604), a second supporting plate (1605), a bracket (1606), a gear (1607) and a push rod (1608), the fixed hoop (1601) is sleeved outside the pressure test pipeline (5), the bottom of the fixed hoop is fixedly connected with the first supporting plate (1602), the bottom of the first supporting plate (1602) is fixedly provided with the supporting column (1603), the buffer spring (1604) is sleeved above the supporting column (1603), the upper end and the lower end of the buffer spring (1604) are movably connected with the first supporting plate (1602) and the second supporting plate (1605) respectively, the second supporting plate (1605) is arranged on the supporting column (1603) in a penetrating manner, the middle end of the bottom of the fixed rack (1606), the two sides of the supporting column (1603) below the second supporting plate (1605, push rods (1608) are meshed with the outer sides of the gears (1607), and the push rods (1608) penetrate through the second supporting plate (1605).
2. The heat supply pipeline pressure testing device of claim 1, characterized in that: the bottom of the pressure gauge (9) is communicated with the pressure test pipeline (5) through a communicating pipe, the communicating pipe is a U-shaped pipe, and a ball valve is further arranged on the communicating pipe.
3. The heat supply pipeline pressure testing device of claim 1, characterized in that: the pressure testing device is characterized in that an operating platform (15) is further arranged at the bottom of the pressure testing device, a water tank (1) and an air pump (7) are fixed on the operating platform (15), and the output end of the air pump (7) is communicated with a pressure testing pipeline (5) through an air outlet pipe.
4. The heat supply pipeline pressure testing device of claim 3, characterized in that: the carriage (1606) stands on an operation table (15).
5. The heat supply pipeline pressure testing device of claim 1, characterized in that: fixed staple bolt (1601) are established to two, and two fixed staple bolt (1601) symmetry are installed at pressure testing pipeline (5) both ends, its bottom and first layer board (1602) up end left and right sides fixed connection, first layer board (1602) up end middle part and pressure testing pipeline (5) fixed connection.
6. The heat supply pipeline pressure testing device of claim 1, characterized in that: the push rod (1608) penetrates through and is movably connected to the second supporting plate (1605), the push rod (1608) is arranged below the first supporting plate (1602), and the distance from the push rod (1608) to the first supporting plate (1602) is smaller than half of the original length of the buffer spring (1604).
7. The heat supply pipeline pressure testing device as claimed in claim 1, 5 or 6, wherein: be equipped with the screw thread on support column (1603) below circumference, push rod (1608) below also is equipped with the screw thread, and support column (1603) and push rod (1608) all pass through screw thread and gear (1607) meshing, gear (1607) are fixed in second layer board (1605) bottom to guarantee that gear (1607) can rotate.
8. The heat supply pipeline pressure testing device of claim 1, characterized in that: one end of the water inlet pipe, which is far away from the water pump (2), is fixedly connected with a filter screen (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095198.5A CN110987631A (en) | 2019-11-11 | 2019-11-11 | Heat supply pipeline pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095198.5A CN110987631A (en) | 2019-11-11 | 2019-11-11 | Heat supply pipeline pressure testing device |
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| Publication Number | Publication Date |
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| CN110987631A true CN110987631A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911095198.5A Pending CN110987631A (en) | 2019-11-11 | 2019-11-11 | Heat supply pipeline pressure testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721633A (en) * | 2020-06-18 | 2020-09-29 | 王昆 | High-end equipment that can carry out contrast test is equipped with manufacturing and is used PU pipeline detection device |
-
2019
- 2019-11-11 CN CN201911095198.5A patent/CN110987631A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721633A (en) * | 2020-06-18 | 2020-09-29 | 王昆 | High-end equipment that can carry out contrast test is equipped with manufacturing and is used PU pipeline detection device |
| CN111721633B (en) * | 2020-06-18 | 2022-01-07 | 广东南粤勘察设计有限公司 | High-end equipment that can carry out contrast test is equipped with manufacturing and is used PU pipeline detection device |
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