CN210571760U - Water pressure detection device for U-shaped stainless steel pipe of heat exchanger - Google Patents
Water pressure detection device for U-shaped stainless steel pipe of heat exchanger Download PDFInfo
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- CN210571760U CN210571760U CN201920919855.2U CN201920919855U CN210571760U CN 210571760 U CN210571760 U CN 210571760U CN 201920919855 U CN201920919855 U CN 201920919855U CN 210571760 U CN210571760 U CN 210571760U
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- 238000001514 detection method Methods 0.000 title claims abstract description 54
- 239000010935 stainless steel Substances 0.000 title claims abstract description 54
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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Abstract
The utility model relates to a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger, which comprises two clamping mechanisms 1 which are symmetrically arranged left and right, wherein a clamping device 17 is arranged on each clamping mechanism 1, and the clamping device 17 is arranged on a movable mounting seat 16; the clamping device 17 clamps and fixes the pressurization detection mechanism 2; the left and right pipe orifices of the U-shaped stainless steel pipe 101 are respectively sleeved on the pressurization detection mechanism 2; introducing water and compressed air into pipe orifices at two ends of the U-shaped stainless steel pipe 101 through the pressurization detection mechanism 2, and carrying out water pressure test on the U-shaped stainless steel pipe 101; the device has the advantages of simple structure, convenient disassembly, stable test, universality of steel pipes with various specifications, high detection efficiency and low cost.
Description
Technical Field
The utility model relates to a water pressure detection device for the steel pipe especially relates to a water pressure detection device for nonrust steel pipe of heat exchanger U-shaped belongs to nonrust steel pipe production check out test set field.
Background
The stainless steel heat exchanger is made of stainless steel materials, has good oxidation resistance, is safe and sanitary, and can be widely applied to the fields of food, medicine, heating, domestic water, air conditioner backwater and the like. Compared with the heat exchange effect of the traditional carbon steel heat exchanger, the stainless steel heat exchanger has better heat transfer effect, longer service life and longer service life; the double pipe heat exchanger is widely applied in various fields, and is formed by connecting concentric sleeves made of straight pipes with different diameters by U-shaped elbows. In the heat exchanger, one fluid flows in the pipe, the other fluid flows in the annular space, and both fluids can obtain higher flow velocity, so the heat transfer coefficient is higher; because a transmission medium is needed, the pipe body must be capable of bearing certain high pressure and cannot have leakage; generally, the U-shaped stainless steel pipe is formed by welding a straight pipe and a bent pipe or directly performing cold bending on the straight pipe, and the welded part and the cold bent part can be qualified for use only after no leakage exists through a water pressure test; the steel pipe leakage detection is usually carried out by adopting ultrasonic detection or eddy current detection, but the detection equipment is expensive, has larger size and occupies more space, and the production cost of enterprises is invisibly increased; therefore, some manufacturers adopt a water pressure test which is more convenient and lower in cost, one end of a steel pipe is blocked by a sealing head in a common water pressure test, the other end of the steel pipe is manually held by personnel, and the connection between a water inlet pipe and a steel pipe body is in plug-in connection, and the connection is locked by a common hoop; meanwhile, when unilateral water pressure is input, the end socket is impacted by great water pressure and is easy to fall off, so that the end socket is usually welded in a sealing mode or reinforced through a reinforcing piece, and the end socket is dismounted after later-stage testing, which wastes time and labor.
Disclosure of Invention
An object of the utility model is to overcome the aforesaid not enough, provide a simple structure, dismantle convenient, connection stability is high, with low costs for the nonrust steel pipe water pressure detection device of heat exchanger U-shaped.
The purpose of the utility model is realized like this:
a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger comprises two clamping mechanisms which are arranged in bilateral symmetry, wherein a pressurization detection mechanism is arranged on each clamping mechanism, and the pressurization detection mechanisms are clamped and fixed by the clamping mechanisms; the left and right pipe orifices of the U-shaped stainless steel pipe are respectively sleeved on the pressurization detection mechanism;
the clamping mechanism comprises a base, wherein connecting blocks are fixedly arranged at four corners of the top surface of the base respectively, and adjacent connecting blocks are symmetrically arranged and positioned on the same straight line; guide rods are arranged between two adjacent connecting blocks arranged along the length direction of the base, specifically, the guide rods are fixedly arranged between two groups of adjacent connecting blocks, and the upper guide rod and the lower guide rod are symmetrically arranged in parallel; the upper guide rod and the lower guide rod are respectively provided with a sliding block, the sliding block is provided with a corresponding through hole along the length direction of the guide rod, the guide rod is penetrated in the through hole, and the sliding block is connected with the guide rod in a sliding way; the upper sliding block and the lower sliding block are symmetrically arranged, a supporting rod is fixedly arranged between the upper sliding block and the lower sliding block, and the supporting rod is vertical to the guide rod; the upper and lower sliding blocks and the supporting rod form a group of supporting components, and the supporting components are positioned between the upper and lower guide rods and are in sliding connection with the guide rods; at least two groups of supporting components are arranged; the top surface of the supporting component is horizontally provided with an installation seat, the top surface of the installation seat is provided with a clamping device, and the clamping device is parallel to the guide rod; the clamping device comprises an upper clamping plate and a lower clamping plate, the lower clamping plate is vertically arranged on the top surface of the mounting seat, the length direction of the lower clamping plate is perpendicular to the supporting rod, and a semicircular groove with an upward opening is formed in the center of the top surface of the lower clamping plate along the length direction of the supporting rod; the two ends of the upper clamping plate are fastened on the top surface of the lower clamping plate through screws, and the upper clamping plate is detachably connected with the lower clamping plate; the length direction of the upper clamping plate is vertical to the supporting rod, and a semicircular groove with a downward opening is formed in the center of the bottom surface of the upper clamping plate along the length direction of the supporting rod; the semicircular groove on the upper clamping plate and the semicircular groove on the lower clamping plate are concentrically matched with each other in the same diameter, and when the upper clamping plate is fastened on the lower clamping plate through a screw, the upper semicircular groove and the lower semicircular groove form a complete circular through hole; at least two clamping devices are arranged; the pressurizing detection mechanism is penetrated in the circular through hole of the clamping device and is fixed by the upper clamping plate and the lower clamping plate;
the pressurizing detection mechanism comprises a sleeve, a through hole is formed in the middle pipe wall of the sleeve, a locking device is arranged at the through hole, a pipe body at one end of the U-shaped stainless steel pipe is inserted into the sleeve during water pressure testing, the locking device is screwed to fasten the pipe body of the U-shaped stainless steel pipe in the sleeve, and the inner diameter of the sleeve is slightly larger than the outer diameter of the U-shaped stainless steel pipe; the tail end of the sleeve is fixedly provided with a connecting pipe which is communicated with the sleeve; the connecting pipe is detachably connected with the three-way connecting piece; the other two pipe orifices of the three-way connecting piece are respectively connected with a water inlet pipe and an air inlet pipe through pipelines; the water inlet pipe and the air inlet pipe are respectively and correspondingly connected with an external pressure test pump and a booster pump;
the utility model relates to a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger, wherein a support table is arranged under the arc-shaped section of the U-shaped stainless steel pipe, and the arc-shaped pipe section is erected on the support table;
the utility model relates to a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger, wherein a locking device comprises a boss vertically arranged at a through hole of the wall of a sleeve pipe, and the center of the boss is provided with the through hole and communicated with the through hole of the wall of the sleeve pipe; the central through hole of the boss is internally provided with internal threads, and a locking bolt matched with the internal threads is screwed in the boss;
the utility model relates to a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger, wherein the inner wall of a sleeve is provided with a sealing layer which is made of flexible material;
the utility model relates to a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger, the outer wall of a connecting pipe is provided with an external thread, the inner wall of a pipe orifice of a three-way connecting piece connected with the connecting pipe is provided with an internal thread corresponding to the external thread of the connecting pipe, and the connecting pipe is screwed with the three-way connecting piece through the internal thread and the external thread;
compared with the prior art, the beneficial effects of the utility model are that:
the utility model has the advantages that the same movable clamping mechanisms are arranged at the two detection ends of the U-shaped stainless steel pipe, the pressurizing detection mechanism is fastened on the clamping mechanisms, the stability between the parts in the detection process is increased, the pressurizing detection mechanism and the detection steel pipe are locked by the bolt and are not easy to fall off, the manual operation is avoided, the operation risk is reduced, and the test efficiency is improved; two ends are simultaneously subjected to pressure test, and the sealing head and the port are not required to be plugged, so that the efficiency is higher; the device has the advantages of simple structure, convenient disassembly, high connection stability and low cost.
Drawings
Fig. 1 is the structure schematic diagram of the utility model relates to a water pressure detection device for a U-shaped stainless steel pipe of a heat exchanger.
Fig. 2 is the structure schematic diagram of the clamping mechanism of the water pressure detection device for the U-shaped stainless steel tube of the heat exchanger of the present invention.
Fig. 3 is a perspective view of the clamping mechanism of the water pressure detecting device for the U-shaped stainless steel tube of the heat exchanger of the present invention.
Fig. 4 is the utility model discloses a heat exchanger U-shaped is pressure detection device's for stainless steel pipe clamping device schematic structure.
Fig. 5 is the utility model relates to a heat exchanger is nonrust for steel pipe water pressure detection device's of U-shaped fixture and detection mechanism assembly sketch map.
Fig. 6 is the utility model discloses a detection mechanism structure sketch map of a water pressure detection device for the stainless steel pipe of heat exchanger U-shaped.
Wherein:
the device comprises a clamping mechanism 1, a pressurization detection mechanism 2, a support table 3 and a U-shaped stainless steel pipe 101;
the device comprises a base 11, a connecting block 12, a guide rod 13, a sliding block 14, a supporting rod 15, a mounting seat 16, a clamping device 17, an upper clamping plate 17.1 and a lower clamping plate 17.2;
the device comprises a sleeve 21, a locking device 22, a three-way connecting piece 23, a boss 22.1, a locking bolt 22.2, a connecting pipe 22.3, a water inlet pipe 23.1 and an air inlet pipe 23.2.
Detailed Description
Referring to fig. 1-6, the water pressure detection device for the U-shaped stainless steel tube of the heat exchanger according to the present invention comprises two clamping mechanisms 1 symmetrically arranged from left to right, wherein the clamping mechanisms 1 are provided with pressurizing detection mechanisms 2, and the clamping mechanisms 1 clamp and fix the pressurizing detection mechanisms 2; the left and right pipe orifices of the U-shaped stainless steel pipe 101 are respectively sleeved on the pressurization detection mechanism 2; introducing water and compressed air into pipe orifices at two ends of the U-shaped stainless steel pipe 101 through the pressurization detection mechanism 2, and carrying out water pressure test on the U-shaped stainless steel pipe 101;
the clamping mechanism 1 comprises a base 11, wherein connecting blocks 12 are fixedly mounted at four corners of the top surface of the base 11 respectively, and adjacent connecting blocks 12 are symmetrically arranged and located on the same straight line; a guide rod 13 is arranged between two adjacent connecting blocks 12 arranged along the length direction of the base 11, specifically, the guide rods 13 are respectively and fixedly arranged between two groups of adjacent connecting blocks 12, and the upper guide rod 13 and the lower guide rod 13 are symmetrically arranged in parallel; the upper guide rod 13 and the lower guide rod 13 are respectively provided with a sliding block 14, the sliding block 14 is provided with a corresponding through hole along the length direction of the guide rod 13, the guide rod 13 is penetrated in the through hole, and the sliding block 14 is connected with the guide rod 13 in a sliding way; the upper sliding block 14 and the lower sliding block 14 are symmetrically arranged, a supporting rod 15 is fixedly arranged between the upper sliding block 14 and the lower sliding block 14, and the supporting rod 15 is perpendicular to the guide rod 13; the upper and lower sliders 14 and the support rod 15 form a group of support components, and the support components are positioned between the upper and lower guide rods 13 and are in sliding connection with the guide rods 13; at least two groups of supporting components are arranged; the top surface of the supporting component is horizontally provided with an installation seat 16, the top surface of the installation seat 16 is provided with a clamping device 17, and the clamping device 17 is parallel to the guide rod 13; the clamping device 17 comprises an upper clamping plate 17.1 and a lower clamping plate 17.2, the lower clamping plate 17.2 is vertically arranged on the top surface of the mounting seat 16, the length direction of the lower clamping plate 17.2 is vertical to the supporting rod 15, and a semicircular groove with an upward opening is formed in the center of the top surface of the lower clamping plate 17.2 along the length direction of the supporting rod 15; two ends of the upper clamping plate 17.1 are fastened on the top surface of the lower clamping plate 17.2 through screws, and the upper clamping plate 17.1 is detachably connected with the lower clamping plate 17.2; the length direction of the upper clamping plate 17.1 is vertical to the support rod 15, and a semicircular groove with a downward opening is formed in the center of the bottom surface of the upper clamping plate 17.1 along the length direction of the support rod 15; the semicircular groove on the upper clamping plate 17.1 is concentrically and correspondingly matched with the semicircular groove on the lower clamping plate 17.2 in the same diameter, and when the upper clamping plate 17.1 is fastened on the lower clamping plate 17.2 through a screw, the upper semicircular groove and the lower semicircular groove form a complete circular through hole; the number of the clamping devices 17 is at least two; the pressurizing detection mechanism 2 is penetrated in a circular through hole of the clamping device 17 and fixed by an upper clamping plate 17.1 and a lower clamping plate 17.2;
the pressurization detection mechanism 2 comprises a sleeve 21, a through hole is formed in the middle pipe wall of the sleeve 21, a locking device 22 is arranged at the through hole, a pipe body at one end of the U-shaped stainless steel pipe 101 is inserted into the sleeve 21 during a water pressure test, the locking device 22 is screwed to fasten the pipe body of the U-shaped stainless steel pipe into the sleeve 21, and the inner diameter of the sleeve 21 is slightly larger than the outer diameter of the U-shaped stainless steel pipe 101; the tail end of the sleeve 21 is fixedly provided with a connecting pipe 22.3, and the connecting pipe 22.3 is communicated with the sleeve 21; the connecting pipe 22.3 is detachably connected with the three-way connecting piece 23; the other two pipe orifices of the three-way connecting piece 23 are respectively connected with a water inlet pipe 23.1 and an air inlet pipe 23.2 through pipelines; a pressure gauge and a valve are respectively arranged on the water inlet pipe 23.1 and the air inlet pipe 23.2; the water inlet pipe 23.1 and the air inlet pipe 23.2 are respectively and correspondingly connected with an external booster pump and an external air compressor;
furthermore, a support table 3 is arranged right below the arc-shaped section of the U-shaped stainless steel pipe 101, and the arc-shaped pipe section is erected on the support table 3, so that the stability of the U-shaped stainless steel pipe in water pressure detection is improved;
further, the locking device 22 comprises a boss 22.1 vertically arranged at the through hole of the pipe wall of the sleeve 21, and the center of the boss 22.1 is provided with a through hole and communicated with the through hole of the pipe wall of the sleeve 21; an internal thread is arranged in a central through hole of the boss 22.1, a locking bolt 22.2 matched with the internal thread is screwed in the boss 22.1, the U-shaped stainless steel pipe 101 is inserted in the sleeve 21, and the locking bolt 22.2 is screwed to fasten the pipe body of the U-shaped stainless steel pipe 101;
preferably, the inner wall of the sleeve 21 is provided with a sealing layer, and the sealing layer is made of a flexible material, so that the air tightness between the sleeve 21 and the U-shaped stainless steel pipe 101 is ensured;
preferably, the outer wall of the connecting pipe 22.3 is provided with an external thread, the inner wall of the pipe orifice of the three-way connecting piece 23 connected with the connecting pipe 22.3 is provided with an internal thread corresponding to the external thread of the connecting pipe 22.3, the connecting pipe 22.3 is screwed with the three-way connecting piece 23 through the internal and external threads, when in test, the clamping device 17 with the corresponding pipe diameter is selected according to the pipe diameters of different types of U-shaped stainless steel pipes, the pipe diameter of the connecting pipe 22.3 is not changed, the clamping device 17 with different pipe diameters is conveniently connected with the three-way connecting piece 23, and the test efficiency is;
the working principle of the device is as follows:
the method comprises the following steps that pipe bodies at two ends of a U-shaped stainless steel pipe needing a water pressure test are respectively inserted into clamping devices 17 of water pressure detection devices at the left side and the right side and locked, booster pumps at the two sides are started to feed water into the steel pipe for the water pressure test, when a pressure gauge on the booster pumps reaches a test value, valves on the booster pumps are closed, water injection and pressure compensation are stopped, whether water seepage exists or not is observed within a test set time, and if the pressure gauge is unchanged or the change value is smaller than 0.1, the pressure test is normal; at the moment, the air compressor is opened, compressed air is input into the U-shaped stainless steel pipe, the ultimate bearing pressure of the U-shaped stainless steel pipe is tested, when a pressure gauge on the air compressor reaches a test value, a valve of the air compressor is closed, inflation and pressure compensation are stopped, whether water seepage exists or not is observed within a test set time, and if the pressure gauge does not change or the change value is smaller than 0.1, the pressure bearing capacity is up to the standard; if the U-shaped stainless steel pipes of different models need to be tested, the clamping device is opened firstly, the pressurizing detection mechanism matched with the tested steel pipe is replaced and clamped tightly, the mounting seats on the two sides are moved to the positions corresponding to the pipe orifices on the two ends of the U-shaped stainless steel pipe, and the testing operation is repeated to start the detection.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (5)
1. The utility model provides a nonrust for steel pipe water pressure detection device of heat exchanger U-shaped which characterized in that: the device comprises two clamping mechanisms (1) which are arranged in bilateral symmetry, wherein the clamping mechanisms (1) are provided with a pressurization detection mechanism (2), and the pressurization detection mechanism (2) is clamped and fixed by the clamping mechanisms (1); the left and right pipe orifices of the U-shaped stainless steel pipe (101) are respectively sleeved on the pressurization detection mechanism (2);
the clamping mechanism (1) comprises a base (11), connecting blocks (12) are fixedly mounted at four corners of the top surface of the base (11) respectively, and adjacent connecting blocks (12) are symmetrically arranged and located on the same straight line; guide rods (13) are arranged between two adjacent connecting blocks (12) arranged along the length direction of the base (11), specifically, the guide rods (13) are respectively and fixedly arranged between two groups of adjacent connecting blocks (12), and the upper guide rod and the lower guide rod (13) are symmetrically arranged in parallel; the upper guide rod (13) and the lower guide rod (13) are respectively provided with a sliding block (14), the sliding block (14) is provided with a corresponding through hole along the length direction of the guide rod (13), the guide rod (13) is penetrated in the through hole, and the sliding block (14) is connected with the guide rod (13) in a sliding manner; the upper sliding block and the lower sliding block (14) are symmetrically arranged, a supporting rod (15) is fixedly arranged between the upper sliding block and the lower sliding block (14), and the supporting rod (15) is vertical to the guide rod (13); the upper sliding block (14), the lower sliding block (14) and the support rod (15) form a group of support components, and the support components are positioned between the upper guide rod (13) and the lower guide rod (13) and are in sliding connection with the guide rods (13); at least two groups of supporting components are arranged; the top surface of the supporting component is horizontally provided with an installation seat (16), the top surface of the installation seat (16) is provided with a clamping device (17), and the clamping device (17) is parallel to the guide rod (13); the clamping device (17) comprises an upper clamping plate (17.1) and a lower clamping plate (17.2), the lower clamping plate (17.2) is vertically arranged on the top surface of the mounting seat (16), the length direction of the lower clamping plate (17.2) is perpendicular to the supporting rod (15), and a semicircular groove with an upward opening is formed in the center of the top surface of the lower clamping plate (17.2) along the length direction of the supporting rod (15); two ends of the upper clamping plate (17.1) are fastened on the top surface of the lower clamping plate (17.2) through screws, and the upper clamping plate (17.1) is detachably connected with the lower clamping plate (17.2); the length direction of the upper splint (17.1) is vertical to the support rod (15), and a semicircular groove with a downward opening is formed in the center of the bottom surface of the upper splint (17.1) along the length direction of the support rod (15); the semicircular groove on the upper clamping plate (17.1) and the semicircular groove on the lower clamping plate (17.2) are concentrically matched with each other in the same diameter, and when the upper clamping plate (17.1) is fastened on the lower clamping plate (17.2) through a screw, the upper semicircular groove and the lower semicircular groove form a complete circular through hole; the number of the clamping devices (17) is at least two; the pressurizing detection mechanism (2) is connected in a circular through hole of the clamping device (17) in a penetrating way and is fixed through an upper clamping plate (17.1) and a lower clamping plate (17.2);
the pressurization detection mechanism (2) comprises a sleeve (21), a through hole is formed in the middle pipe wall of the sleeve (21), a locking device (22) is arranged at the through hole, a pipe body at one end of the U-shaped stainless steel pipe (101) is inserted into the sleeve (21) during a water pressure test, the locking device (22) is screwed to fasten the pipe body of the U-shaped stainless steel pipe in the sleeve (21), and the inner diameter of the sleeve (21) is slightly larger than the outer diameter of the U-shaped stainless steel pipe (101); a connecting pipe (22.3) is fixedly arranged at the tail end of the sleeve (21), and the connecting pipe (22.3) is communicated with the sleeve (21); the connecting pipe (22.3) is detachably connected with the three-way connecting piece (23); the other two pipe orifices of the three-way connecting piece (23) are respectively connected with a water inlet pipe (23.1) and an air inlet pipe (23.2) through pipelines, and the water inlet pipe (23.1) and the air inlet pipe (23.2) are respectively provided with a pressure gauge and a valve.
2. The water pressure detecting device for the U-shaped stainless steel pipe of the heat exchanger as set forth in claim 1, wherein: a supporting table (3) is arranged under the arc-shaped section of the U-shaped stainless steel pipe (101), and the arc-shaped pipe section is erected on the supporting table (3).
3. The water pressure detecting device for the U-shaped stainless steel pipe of the heat exchanger as set forth in claim 1, wherein: the locking device (22) comprises a boss (22.1) vertically arranged at the through hole of the pipe wall of the sleeve (21), and the center of the boss (22.1) is provided with a through hole and communicated with the through hole of the pipe wall of the sleeve (21); an internal thread is arranged in a central through hole of the boss (22.1), and a locking bolt (22.2) matched with the internal thread is screwed in the boss (22.1).
4. The water pressure detecting device for the U-shaped stainless steel pipe of the heat exchanger as set forth in claim 1, wherein: the inner wall of the sleeve (21) is provided with a sealing layer which is made of flexible materials.
5. The water pressure detecting device for the U-shaped stainless steel pipe of the heat exchanger as set forth in claim 1, wherein: the outer wall of connecting pipe (22.3) is provided with the external screw thread, the mouth of pipe inner wall that tee junction spare (23) and connecting pipe (22.3) are connected is provided with the internal thread corresponding with connecting pipe (22.3) external screw thread, connecting pipe (22.3) connect through interior external screw thread with tee junction spare (23) soon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920919855.2U CN210571760U (en) | 2019-06-18 | 2019-06-18 | Water pressure detection device for U-shaped stainless steel pipe of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920919855.2U CN210571760U (en) | 2019-06-18 | 2019-06-18 | Water pressure detection device for U-shaped stainless steel pipe of heat exchanger |
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| Publication Number | Publication Date |
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| CN210571760U true CN210571760U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920919855.2U Expired - Fee Related CN210571760U (en) | 2019-06-18 | 2019-06-18 | Water pressure detection device for U-shaped stainless steel pipe of heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063668A (en) * | 2021-03-20 | 2021-07-02 | 徐萍 | Equipment and method for testing pressure resistance of stainless steel pipe fitting production |
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2019
- 2019-06-18 CN CN201920919855.2U patent/CN210571760U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063668A (en) * | 2021-03-20 | 2021-07-02 | 徐萍 | Equipment and method for testing pressure resistance of stainless steel pipe fitting production |
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Granted publication date: 20200519 |