CN203385518U - Device for intra-tube pressure tests - Google Patents
Device for intra-tube pressure tests Download PDFInfo
- Publication number
- CN203385518U CN203385518U CN201320414579.7U CN201320414579U CN203385518U CN 203385518 U CN203385518 U CN 203385518U CN 201320414579 U CN201320414579 U CN 201320414579U CN 203385518 U CN203385518 U CN 203385518U
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- CN
- China
- Prior art keywords
- pressure testing
- column
- managing
- pressure
- elasticity band
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- Expired - Fee Related
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Abstract
The utility model discloses a device for intra-tube pressure tests. In order to solve problems of complex structure, long pressure test consumed time and low efficiency with existing tube pressure test devices, the device for intra-tube pressure tests comprises an extrusion rod, wherein the extrusion rod which is provided with a threaded section is sleeved with a nut matched with the threaded section; the extrusion rod is further sleeved with an elastic column ring, the extrusion rod is provided with an extrusion section which is matched with the nut for extrusion so as to make the elastic column ring expanded radially; and the outer diameter of the elastic column ring is less than the inner diameter of a pressure tube to be tested. According to the utility model, allowance does not need to be reserved for the pressure tube to be tested and no local damage caused on the tube; and advantages of fast assembly and disassembly, safety, high pressure test efficiency, easy fabrication and low cost can be realized.
Description
Technical field
The utility model relates to a kind of for managing the device of interior pressure testing, is particularly useful for the pressure testing before heat exchanger U-shaped pipe, coiled pipe assembling in boiler, pressure vessel and equipment manufacture.
Background technology
After the assembling of U-shaped pipe, coiled pipe due to manufacture, material, the reason such as bend, leaking may appear in U-shaped pipe, coiled pipe, simultaneously due to the singularity of device structure, the heat exchanger tube that part is leaked can't be changed, and also difficult accurately judgement of leakage point.If do not carry out pressure test before the assembling of U-shaped pipe, coiled pipe, leaking appears in heat exchange, will cause huge economic loss, and the huge waste of resource still not simultaneously, is brought hidden danger to the safe operation of equipment.Therefore, the pressure testing before U-shaped pipe, coiled pipe assembling is an indispensable procedure in equipment Manufacture Process.
The pressure testing device of existing various structures, made allowance as pre-as the port at pipe, port end all welds with blind plate, cuts off blind plate after pressure testing; Or take the fixedly method such as pipe end outer wall of bolt and clamp.These methods not only cause local damage to pipe, complex structure simultaneously, and complicated operation and time-consuming, pressure testing length consuming time and efficiency is low, pipe of general inspection needs consuming timely to advance one hour.
The utility model content
In order to overcome existing pipe pressure testing device complex structure, pressure testing long and inefficient deficiency consuming time, the utility model aims to provide a kind of for managing the device of interior pressure testing, and this device can be realized Quick-action pressure-testing, and simple in structure, easy and simple to handle.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of for managing the device of interior pressure testing, its design feature is, comprises pressure ram, has on this pressure ram of thread segment and is set with the nut coordinated with described thread segment; Also be set with the elasticity band of column on described pressure ram, described pressure ram has the extruded segment that coordinates extruding that the described elasticity band of column is radially expanded with described nut; The external diameter of the described elasticity band of column is less than the internal diameter for the treatment of the pressure testing pipe.
In the utility model, the endoporus of the described elasticity band of column can be arbitrary shape, periphery for and the shape for the treatment of that the pressure testing inside pipe wall coordinates, as circle or oval etc.
Be below the technical scheme of further improvement of the utility model:
In order to realize better squeezing effect, the cross-section lengths of described extruded segment is greater than ring length in the cross section of the described elasticity band of column.
Further, between described nut and the described elasticity band of column, be provided with the baffle of porous baffle be sleeved on pressure ram, the breadth extreme of this baffle of porous baffle is greater than the internal diameter for the treatment of the pressure testing pipe.
Preferably, the extruded segment of described pressure ram is tapered, and more preferably, the endoporus of the described elasticity band of column is circular hole.Thus, the circular hole of the tapering part of the conical screw extruding elasticity band of column is radially expanded the elasticity band of column under less responsive to axial force, guarantees sealing effectiveness and the friction force of the elasticity band of column.
For more easily, to treating to be filled with test medium in the pressure testing pipe, described pressure ram is the hollow stem with test medium passage.
According to embodiment of the present utility model, the described elasticity band of column is rubber bar with holes.
Most preferred usable range is, describedly treats that the pressure testing pipe is U-shaped or snakelike heat exchanger tube.
By said structure, utilize method of for the device of managing interior pressure testing, being managed interior pressure testing described in the utility model to be: 1) that pressure ram, nut, the assembling of the elasticity band of column is complete; 2) elasticity band of column integral body is placed in an end for the treatment of the pressure testing pipe, fixed press bar simultaneously, rotating nut, make to push the described elasticity band of column together with the extruded segment of this nut and described pressure ram; 3) be filled with test medium in the other end for the treatment of the pressure testing pipe, and keep test pressure, detect and treat whether the pressure testing pipe exists leakage.
When pressure ram is while having the hollow stem of test medium passage, the elasticity band of column of the device of pressure testing in two groups of pipes is placed in respectively in the two ends for the treatment of the pressure testing pipe, fixed press bar simultaneously, rotating nut, make to push the described elasticity band of column together with the extruded segment of this nut and described pressure ram; Then the test medium passage by the device of pressure testing in two groups of pipes, to treating to be filled with test medium in the pressure testing pipe, and keeps test pressure simultaneously, detects and treats whether the pressure testing pipe exists leakage.Described test medium can be water or air.
Compared with prior art, the beneficial effects of the utility model are: 1, treat the pre-made allowance of pressure testing Guan Buxu and pipe do not caused to local damage; 2, handling are quick, safety, and pressure testing efficiency is high, and general pipe of pressure testing only needed about 5 minutes; 3, make simply, cost is low.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
The accompanying drawing explanation
Fig. 1 is the structure principle chart of an embodiment of the utility model;
Fig. 2 is the structure principle chart of another embodiment of the utility model.
In the drawings
The 1-pressure ram; The 2-nut; The 3-baffle of porous baffle; The 4-elasticity band of column; 5-treats the pressure testing pipe;
6-test medium passage; 7-screw extruding section.
Embodiment
A kind ofly for managing the device of interior pressure testing, as shown in Figure 1, comprise pressure ram 1, have on this pressure ram 1 of thread segment and be set with the nut 2 coordinated with described thread segment; Also be set with the elasticity band of column 4 on described pressure ram 1, described pressure ram 1 has with described nut 2 and coordinates the extruded segment 7 of pushing the described elasticity band of column 4; The external diameter of the described elasticity band of column 4 is less than the internal diameter for the treatment of pressure testing pipe 5.The cross-section lengths of described extruded segment 7 is greater than ring length in the cross section of the described elasticity band of column 4.The extruded segment 7 of described pressure ram 1 is tapered, and the described elasticity band of column 4 is the rubber bar with circular hole, thereby guarantees to produce crush seal effect better when extruding.Be provided with the baffle of porous baffle 3 be sleeved on pressure ram 1 between described nut 2 and the described elasticity band of column 4, the breadth extreme of this baffle of porous baffle 3 is greater than the internal diameter for the treatment of pressure testing pipe 5.Described pressure ram 1 is for having the hollow stem of test medium passage 6.Describedly treat that pressure testing pipe 5 is for U-shaped or snakelike heat exchanger tube.
The utility model is taked internal-expansion type, the compressing rubber rod, and the rubber bar sectional area increases, and makes rubber and heat exchanger tube inwall produce frictional resistance, thereby makes pressure testing device reach purpose fixing and sealing.According to different pressure testing operating modes, adjust the length of rubber bar and the pretightning force of rubber bar, to produce enough axial rub resistances, reach the purpose of security seal.
During work, structure for pressure test is placed in heat exchanger tube, fastening taper screw compression rubber bar, carry out pressure testing after test medium is entered to heat exchanger tube by an end.After pressure testing, unclamp the bolt rubber bar because elasticity resiles, take off frock.
The content that above-described embodiment is illustrated should be understood to these embodiment only for being illustrated more clearly in the utility model, and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Claims (8)
1. one kind for managing the device of interior pressure testing, it is characterized in that, comprises pressure ram (1), has on this pressure ram (1) of thread segment and be set with the nut (2) coordinated with described thread segment; Also be set with the elasticity band of column (4) on described pressure ram (1), described pressure ram (1) has the extruded segment (7) that coordinates extruding that the described elasticity band of column (4) is radially expanded with described nut (2); The external diameter of the described elasticity band of column (4) is less than the internal diameter for the treatment of pressure testing pipe (5).
2. according to claim 1ly for managing the device of interior pressure testing, it is characterized in that, the cross-section lengths of described extruded segment (7) is greater than ring length in the cross section of the described elasticity band of column (4).
3. according to claim 1 for managing the device of interior pressure testing, it is characterized in that, be provided with the baffle of porous baffle (3) be sleeved on pressure ram (1) between described nut (2) and the described elasticity band of column (4), the breadth extreme of this baffle of porous baffle (3) is greater than the internal diameter for the treatment of pressure testing pipe (5).
4. according to one of claim 1 ~ 3 is described, for managing the device of interior pressure testing, it is characterized in that, the extruded segment (7) of described pressure ram (1) is tapered.
5. according to one of claim 1 ~ 3 is described, for managing the device of interior pressure testing, it is characterized in that, described pressure ram (1) is for having the hollow stem of test medium passage (6).
6. according to one of claim 1 ~ 3 is described, for managing the device of interior pressure testing, it is characterized in that, the described elasticity band of column (4) is rubber bar with holes.
7. it is characterized in that for managing the device of interior pressure testing according to one of claim 1 ~ 3 is described, describedly treat that pressure testing pipe (5) is U-shaped or snakelike heat exchanger tube.
8. according to claim 4ly for managing the device of interior pressure testing, it is characterized in that, the endoporus of the described elasticity band of column (4) is circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414579.7U CN203385518U (en) | 2013-07-12 | 2013-07-12 | Device for intra-tube pressure tests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414579.7U CN203385518U (en) | 2013-07-12 | 2013-07-12 | Device for intra-tube pressure tests |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385518U true CN203385518U (en) | 2014-01-08 |
Family
ID=49873996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320414579.7U Expired - Fee Related CN203385518U (en) | 2013-07-12 | 2013-07-12 | Device for intra-tube pressure tests |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203385518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462369A (en) * | 2017-07-25 | 2017-12-12 | 无锡佳龙换热器股份有限公司 | pressure testing device |
-
2013
- 2013-07-12 CN CN201320414579.7U patent/CN203385518U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462369A (en) * | 2017-07-25 | 2017-12-12 | 无锡佳龙换热器股份有限公司 | pressure testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yilida Industrial Co., Ltd., Hu'nan Assignor: Wang Deyuan Contract record no.: 2014430000140 Denomination of utility model: A kind of for managing the device of interior pressure testing Granted publication date: 20140108 License type: Exclusive License Record date: 20140724 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20180712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |