CN219532393U - Coil pipe tightness detection device - Google Patents
Coil pipe tightness detection device Download PDFInfo
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- CN219532393U CN219532393U CN202320853346.0U CN202320853346U CN219532393U CN 219532393 U CN219532393 U CN 219532393U CN 202320853346 U CN202320853346 U CN 202320853346U CN 219532393 U CN219532393 U CN 219532393U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model belongs to the technical field of cooling towers, and particularly relates to a coil tightness detection device which comprises a water storage tank, a water inlet pipe, a water outlet pipe and a pressure regulating assembly, wherein the water inlet pipe can be connected with a liquid inlet main pipe of a coil; the pressure regulating assembly comprises a piston cylinder, a piston is vertically and slidably connected in the piston cylinder, the piston divides the piston cylinder into an independent upper cavity and a lower cavity, the lower cavity is communicated with the water inlet pipe or the water outlet pipe through a pipeline, a communication point of the pipeline and the water inlet pipe or the water outlet pipe is positioned between the first valve and the coil pipe, a vertical threaded through hole is formed in the top wall of the upper cavity, and an adjusting screw is connected with the vertical threaded through hole in a threaded manner. According to the utility model, the pressure regulating assembly is used for regulating the water pressure in the coil pipe, so that whether the coil pipe leaks water is checked, the detection of the tightness of the coil pipe is realized, the coil pipe does not need to be soaked in water or discharged, the detection efficiency is improved, and the waste of water resources is avoided.
Description
Technical Field
The utility model belongs to the technical field of cooling towers, and particularly relates to a coil tightness detection device.
Background
The cooling tower is an evaporation heat-dissipating device which uses water as a circulating coolant and dissipates waste heat generated in industry or refrigeration air conditioner. The cooling tower can be divided into a closed cooling tower and an open cooling tower, and the working principle of the closed cooling tower is as follows: the dry cold air flows into the tower through the side air grid, fluid (to-be-cooled object) flows in the coil, the outer wall of the coil is wrapped by spray water, heat of the fluid is transferred through the wall of the coil, saturated wet and hot steam is formed by the heat and water and air, the heat is discharged into the atmosphere by the fan, the water is blocked back to the water collecting tank for circulating spraying, and the spray water flows through the filler to contact with the air in the circulating process, so that the water temperature is reduced. In the process, fluid flows in the coil pipe and is not contacted with spray water, so that the requirement on the tightness of the coil pipe is high, and the coil pipe needs to be subjected to tightness detection after being molded.
At present, the tightness detection of the coil pipe can be carried out through air pressure test, specifically, one end of the tested coil pipe is sealed, an air pressure medium is connected from the other end of the tested coil pipe, the whole coil pipe is immersed in water or aqueous solution, the pressure is slowly increased to test pressure (the test pressure is 1.05 times of design pressure), the pressure is maintained for at least 3min, and the leakage condition is detected. After the test is completed, the gas is slowly exhausted. In the air pressure test process, because the coil is heavy, workers need to consume great effort to transport the coil into water or water solution, and transport the coil out of the water or water solution after the detection is finished, the operation is troublesome, and the detection efficiency is affected; moreover, after the coiled pipe is carried out of water or water solution, workers can easily carry the water or water solution out, so that the ground is wet and slippery, and water resource waste is caused.
Disclosure of Invention
The utility model aims to provide a coil tightness detection device which is used for solving the problem that a worker needs to carry a coil to enable the coil to be immersed in or discharged from water in the tightness detection process.
In order to achieve the above purpose, the scheme of the utility model is as follows: the coil tightness detection device comprises a water storage tank, a water inlet pipe, a water outlet pipe and a pressure regulating assembly, wherein the water inlet pipe can be connected with a liquid inlet main pipe of a coil; the pressure regulating assembly comprises a piston cylinder, a piston is vertically and slidably connected in the piston cylinder, the piston separates the piston cylinder into an independent upper cavity and a lower cavity, the lower cavity is communicated with a water inlet pipe or a water outlet pipe through a pipeline, a communication point of the pipeline and the water inlet pipe or the water outlet pipe is positioned between a first valve and a coil pipe, a vertical threaded through hole is formed in the top wall of the upper cavity, an adjusting screw is connected with the vertical threaded through hole in a threaded manner, and one end of the adjusting screw, which is positioned in the upper cavity, abuts against the piston.
The working principle and the beneficial effects of the scheme are as follows: in this scheme, link to each other the inlet tube with the inlet manifold of coil pipe, link to each other the outlet pipe with the play liquid house steward of coil pipe, through the inlet tube to coil pipe water delivery to ensure that water is full of coil pipe, inlet manifold and play liquid house steward, unnecessary rivers are in the storage water tank. Closing the first valve, adjusting the hydraulic pressure in the coil pipe through the pressure adjusting component, checking whether the coil pipe leaks, and detecting the tightness of the coil pipe. Moreover, in the scheme, a worker is not required to carry the coil laboriously to enable the coil to enter water or discharge water, so that the workload of the worker is reduced, the detection efficiency is improved, and the waste of water resources is avoided.
Optionally, the number of the pressure regulating components is two, the pipeline in one group of the pressure regulating components is communicated with the water inlet pipe, and the pipeline in the other group of the pressure regulating components is communicated with the water outlet pipe.
In this scheme, pressure regulating subassembly is when two sets of, and the workman can be through the interior water pressure of arbitrary pressure regulating subassembly adjusting coil, and the operation is more convenient.
Optionally, the piston is connected with a piston rod, and a through hole for the piston rod to penetrate is formed in the top wall of the upper cavity.
In this scheme, after the coil pipe pressurize a period, rotate adjusting screw for adjusting screw moves to the direction of keeping away from the piston, so, for the vertical slip of piston provides sufficient space, workman push-and-pull piston rod makes the reciprocal vertical slip of piston, thereby makes the inner wall of coil pipe be erodeed repeatedly to the water in the coil pipe, and whether the in-process inspection coil pipe leaks, realizes the leakproofness of dynamic detection coil pipe. In addition, in the scheme, the water in the coil repeatedly washes the inner wall of the coil, and the impact force with repeatedly changed direction can be applied to the scale on the inner wall of the coil, so that the coil has a certain descaling effect and is particularly suitable for detecting the tightness of the coil after a period of use.
Optionally, one end of the water inlet pipe far away from the coil pipe is communicated with the water storage tank, a first water pump is arranged on the water inlet pipe, and the first water pump is positioned between the water storage tank and a first valve on the water inlet pipe; the water inlet pipe is communicated with a water collecting pipe, the water collecting pipe is positioned between the coil pipe and the first valve on the water inlet pipe, one end, far away from the water inlet pipe, of the water collecting pipe is communicated with a water collecting tank, and the water collecting pipe is provided with a second valve.
In this scheme, utilize first water pump to the coil pipe with the first water in the storage water tank to realize the automatic supply of water. In addition, in the scheme, after the tightness detection is completed, the second valve is opened, water in the coil pipe flows into the water collecting tank through the water collecting pipe under the action of gravity, and water flowing out of the coil pipe liquid inlet main pipe is prevented from being received by water receiving equipment such as a water receiving bucket by workers (after the liquid inlet pipe and the coil pipe liquid inlet main pipe are split, water in the coil pipe flows out of the coil pipe liquid inlet main pipe).
Optionally, the bottom of header tank communicates there is the back flow, installs the second water pump on the back flow, the back flow keep away from the header tank one end with the storage water tank intercommunication.
In the scheme, water in the water collection tank can flow back into the water storage tank through the return pipe, so that the water recycling is realized.
Optionally, the device further comprises a water receiving disc, a strip-shaped notch for inserting the coil pipe support is arranged on the water receiving disc, and a U-shaped baffle is arranged at the strip-shaped notch.
In this scheme, coil pipe support inserts the bar breach of water collector, so, the below of coil pipe can be placed in to the water collector, if the coil pipe leaks, then the water collector accepts, avoids the water of leaking to wet ground.
Optionally, the number of the vertical threaded through holes is more than two, and the vertical threaded through holes are uniformly distributed along the circumferential direction of the top wall of the upper cavity.
In this scheme, have more than two vertical screw thread through-holes on the roof of last cavity, then can design the adjusting screw more than two to guarantee to exert comparatively even tight power of supporting to the piston.
Optionally, a mounting block is arranged on the top wall of the upper chamber, and the vertical threaded through hole is formed in the mounting block.
In this scheme, vertical screw thread through-hole sets up on the installation piece to ensure vertical screw thread through-hole's axial length, do not influence the thickness of last cavity roof moreover.
Optionally, a pressure gauge for displaying water pressure is arranged on the water inlet pipe or the water outlet pipe.
In this scheme, utilize the manometer to show the water pressure in the coil pipe to the pressure size in the coil pipe is mastered to the inspector.
Optionally, a first support frame for supporting the water inlet pipe is arranged on the water inlet pipe, and a second support frame for supporting the water outlet pipe is arranged on the water outlet pipe.
In this scheme, utilize first support frame to support the inlet tube, utilize the second support frame to support the outlet pipe to guarantee the stability of inlet tube and outlet pipe when inspection crew or workman push-and-pull piston rod, avoid inlet tube and outlet pipe radial rocking as far as possible.
Drawings
FIG. 1 is a schematic diagram of a coil tightness detecting device according to an embodiment of the present utility model;
fig. 2 is a perspective view of a water pan according to an embodiment of the present utility model;
FIG. 3 is a perspective view of a coil when a water inlet pipe and a water outlet pipe are connected with the coil in a first embodiment of the utility model;
FIG. 4 is a schematic diagram of a coil tightness detecting device according to an embodiment of the present utility model;
FIG. 5 is a partial longitudinal cross-sectional view of a pressure regulating assembly according to a first embodiment of the present utility model;
fig. 6 is a partial longitudinal cross-sectional view of a pressure regulating assembly in accordance with a second embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: the water storage tank 1, the water inlet pipe 2, the water outlet pipe 3, the pressure regulating assembly 4, the piston cylinder 410, the upper chamber 411, the lower chamber 412, the piston 420, the mounting block 430, the adjusting screw 440, the pipeline 450, the piston rod 460, the water receiving disc 5, the strip notch 501, the U-shaped baffle 510, the first support frame 6, the second support frame 7, the coil pipe 8, the liquid inlet main pipe 9, the liquid outlet main pipe 10, the first valve 11, the first water pump 12, the water collecting pipe 13, the water collecting tank 14, the second valve 15, the return pipe 16, the second water pump 17, the pressure gauge 18 and the coil pipe bracket 19.
Example 1
This embodiment is basically as shown in fig. 1, 2 and 3: the coil pipe tightness detection device comprises a water storage tank 1, a water inlet pipe 2, a water outlet pipe 3, a pressure regulating component 4, a water receiving disc 5, a first support frame 6 and a second support frame 7, wherein one end of the water inlet pipe 2 can be connected with a liquid inlet main pipe 9 of a coil pipe 8, the other end of the water inlet pipe 2 is communicated with the water storage tank 1, one end of the water outlet pipe 3 can be connected with a liquid outlet main pipe 10 of the coil pipe 8, and the other end of the water outlet pipe 3 is communicated with the water storage tank 1. The water outlet pipe 3 and the water inlet pipe 2 are respectively provided with a first valve 11, the water inlet pipe 2 is also provided with a first water pump 12, and the first water pump 12 is positioned between the water storage tank 1 and the first valve 11 on the water inlet pipe 2. The water inlet pipe 2 is communicated with a water collecting pipe 13, a communication point between the water collecting pipe 13 and the water inlet pipe 2 is positioned between the coil pipe 8 and the first valve 11 on the water inlet pipe 2, the bottom end of the water collecting pipe 13 is communicated with a water collecting tank 14, the water collecting pipe 13 is provided with a second valve 15, and the second valve 15 is in a normally closed state. The bottom of the water collection tank 14 is communicated with a return pipe 16, a second water pump 17 is installed on the return pipe 16, the left end of the return pipe 16 is communicated with the water storage tank 1, and vent holes are formed in the top wall of the water storage tank 1 and the water collection tank 14. The water inlet pipe 2 or the water outlet pipe 3 is provided with a pressure gauge 18 for displaying water pressure, and in this embodiment, the pressure gauge 18 is arranged on the water outlet pipe 3.
In this embodiment, the number of the pressure regulating assemblies 4 is two, each pressure regulating assembly 4 includes a piston cylinder 410, and referring to fig. 5, a piston 420 is slidably connected in the piston cylinder 410, the piston 420 separates the piston cylinder 410 into an independent upper chamber 411 and a lower chamber 412, a plurality of mounting blocks 430 are integrally formed on the upper chamber 411, the number of the mounting blocks 430 is more than two, the mounting blocks 430 are uniformly distributed along the circumference of the top wall of the upper chamber 411, each mounting block 430 is provided with a vertical threaded through hole, the vertical threaded through holes are in threaded connection with an adjusting screw 440, and the bottom end of the adjusting screw 440 can be abutted against the piston 420. In this embodiment, the number of the installation blocks 430, the vertical threaded through holes, and the adjusting screws 440 is two. The bottom of the lower chamber 412 is communicated with a pipeline 450, the pipeline 450 of one group of pressure regulating components 4 is communicated with the water inlet pipe 2, the pipeline 450 of the other group of pressure regulating components 4 is communicated with the water outlet pipe 3, and the communication point of the pipeline 450 and the water inlet pipe 2 is positioned between the coil pipe 8 and the first valve 11 on the water inlet pipe 2, and the communication point of the pipeline 450 and the water outlet pipe 3 is positioned between the coil pipe 8 and the first valve 11 on the water outlet pipe 3.
Referring to fig. 2, a strip-shaped notch 501 for inserting the coil bracket 19 is provided on the water pan 5, a U-shaped baffle 510 is provided at the strip-shaped notch 501, and the bottom end of the U-shaped baffle 510 is welded to the water pan 5. The first support frame 6 is used for supporting the water inlet pipe 2, the second support frame 7 is used for supporting the water outlet pipe 3, the first support frame 6 is arranged near the pressure regulating component 4 on the water inlet pipe 2, and the second support frame 7 is arranged near the pressure regulating component 4 on the water outlet pipe 3.
When the detection device is used, the coil pipe 8 is transmitted on the transmission belt, when the coil pipe 8 moves to the detection device, as shown in fig. 4, the water inlet pipe 2 is connected with the liquid inlet main pipe 9 of the coil pipe 8 through a flange, the water outlet pipe 3 is connected with the liquid outlet main pipe 10 of the coil pipe 8 through a flange, the water receiving disc 5 is arranged below the coil pipe 8, and the coil pipe bracket 19 is inserted into the strip-shaped notch 501 of the water receiving disc 5, so that the water receiving disc 5 can receive water leaked from the coil pipe 8 in the detection process.
Then, the first water pump 12 is started, water in the water storage tank 1 flows into the liquid inlet main pipe 9 of the coil pipe 8 through the water inlet pipe 2, then flows into the coil pipe 8, flows into the water outlet pipe 3 through the liquid outlet main pipe 10 of the coil pipe 8, and finally flows back into the water storage tank 1. So far, the liquid inlet main pipe 9, the coil pipe 8 and the liquid outlet main pipe 10 are all filled with water. The first water pump 12 and the first valve 11 are closed, and the inspector rotates the adjusting screw 440 clockwise, so that the adjusting screw 440 moves downward, exerting a downward pressing force on the piston 420, thereby increasing the water pressure in the coil pipe 8. In this process, the pressure gauge 18 can be used by a inspector to grasp the water pressure in the coil pipe 8, so that the adjusting screw 440 is not rotated any more. Then, the pressure is maintained for 3-5min, and a detector observes whether the coil pipe 8 leaks or not, so that the tightness of the coil pipe 8 is detected. In the above process, if the coil pipe 8 leaks, it is indicated that the sealing property is insufficient and reworking is required. The water droplets leaking from the coil 8 fall into the water pan 5, and do not fall onto the conveyor belt and the ground.
After the dwell time is over, the inspector opens the second valve 15 and the water in the coil 8 flows downwards under the force of gravity, i.e. the water in the coil 8 flows into the header tank 14 via the header 13. Finally, a detector firstly separates the water outlet pipe 3 from the liquid outlet main pipe 10, then separates the water inlet pipe 2 from the liquid inlet main pipe 9, releases the connection between the coil pipe 8 and the detection device, and then removes the water receiving disc 5. Then, the conveyer belt transports the coil pipe 8 after the test, and transports the next coil pipe 8 to be tested to a detection device for tightness detection. When more water is in the water collecting tank 14, the second water pump 17 is started, and the water in the water collecting tank 14 flows back to the water storage tank 1 through the return pipe 16, so that the water is recycled, and the water resource is saved.
To sum up, in this embodiment, the coil pipe 8 is only horizontally moved by the conveying belt, so that the manual handling of the worker is not required, the coil pipe 8 is not required to be immersed in water or discharged, the workload of the worker is reduced, and the detection efficiency is improved. In addition, the embodiment realizes the recycling of water and avoids the waste of water resources. More importantly, the embodiment can realize the adjustment of the water pressure in the coil pipe 8 through the pressure adjusting component 4, can detect the tightness of the coil pipe 8 under different water pressures, and is simple to operate.
Example two
The present embodiment differs from the first embodiment in that: as shown in fig. 6, in the present embodiment, the piston 420 is connected with a piston rod 460, and a through hole for the piston rod 460 to penetrate is formed in the top wall of the upper chamber 411. In this embodiment, the bottom end of the piston rod 460 is welded to the upper surface of the piston 420.
In this embodiment, after the end of the pressure keeping, the inspector rotates the adjusting screw 440 counterclockwise, so that the adjusting screw 440 moves upward, providing space for the vertical sliding of the piston 420. Then, the inspector pushes and pulls the piston rod 460 to enable the piston 420 to slide vertically in a reciprocating manner (note that the movement states of the pistons 420 in the two groups of pressure regulating assemblies 4 are opposite, namely, when the piston 420 in one group of pressure regulating assemblies slides upwards, the piston 420 in the other group of pressure regulating assemblies 4 slides downwards), so that water in the coil pipe 8 alternates in a forward flow state and a backward flow state (forward flow: water flows in the coil pipe 8 along the direction from the liquid inlet manifold 9 to the liquid outlet manifold 10, and backward flow: water flows in the coil pipe 8 along the direction from the liquid outlet manifold 10 to the liquid inlet manifold 9), further repeated flushing of the inner wall of the coil pipe 8 is realized, and the inspector inspects whether the coil pipe 8 leaks or not in the process, thereby realizing the tightness of the dynamic inspection coil pipe 8.
In addition, in this embodiment, since the water in the coil pipe 8 repeatedly washes the inner wall of the coil pipe 8, the impact force with repeatedly changing direction can be applied to the scale on the inner wall of the coil pipe 8, so that the coil pipe 8 has a certain descaling effect, and is particularly suitable for detecting the tightness of the coil pipe 8 after a period of use.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the present utility model. The description of the embodiments and the like in the specification can be used for explaining the contents of the claims.
Claims (10)
1. Coil pipe leakproofness detection device, its characterized in that: the water inlet pipe can be connected with a liquid inlet main pipe of the coil pipe, one end of the water outlet pipe can be connected with a liquid outlet main pipe of the coil pipe, the other end of the water outlet pipe is communicated with the water storage tank, and the water outlet pipe and the water inlet pipe are provided with first valves; the pressure regulating assembly comprises a piston cylinder, a piston is vertically and slidably connected in the piston cylinder, the piston separates the piston cylinder into an independent upper cavity and a lower cavity, the lower cavity is communicated with a water inlet pipe or a water outlet pipe through a pipeline, a communication point of the pipeline and the water inlet pipe or the water outlet pipe is positioned between a first valve and a coil pipe, a vertical threaded through hole is formed in the top wall of the upper cavity, an adjusting screw is connected with the vertical threaded through hole in a threaded manner, and one end of the adjusting screw, which is positioned in the upper cavity, abuts against the piston.
2. The coil tightness detection device according to claim 1, wherein: the pressure regulating subassembly quantity is two sets of, and the pipeline in one set of pressure regulating subassembly communicates with the inlet tube, and the pipeline in another set of pressure regulating subassembly communicates with the outlet pipe.
3. The coil tightness detection device according to claim 2, wherein: the piston is connected with a piston rod, and a through hole for the piston rod to penetrate is formed in the top wall of the upper cavity.
4. The coil tightness detection device according to claim 1, wherein: one end of the water inlet pipe, which is far away from the coil, is communicated with the water storage tank, a first water pump is arranged on the water inlet pipe, and the first water pump is positioned between the water storage tank and a first valve on the water inlet pipe; the water inlet pipe is communicated with a water collecting pipe, the water collecting pipe is positioned between the coil pipe and the first valve on the water inlet pipe, one end, far away from the water inlet pipe, of the water collecting pipe is communicated with a water collecting tank, and the water collecting pipe is provided with a second valve.
5. The coil tightness detection device according to claim 4, wherein: the bottom of the water collection tank is communicated with a return pipe, a second water pump is installed on the return pipe, and one end, far away from the water collection tank, of the return pipe is communicated with the water storage tank.
6. The coil tightness detection device according to claim 1, wherein: the device also comprises a water receiving disc, a strip-shaped notch for inserting the coil pipe bracket is arranged on the water receiving disc, and a U-shaped baffle is arranged at the strip-shaped notch.
7. The coil tightness detection device according to claim 1, wherein: the number of the vertical threaded through holes is more than two, and the vertical threaded through holes are uniformly distributed along the circumferential direction of the top wall of the upper cavity.
8. The coil tightness detection device according to claim 1, wherein: the top wall of the upper cavity is provided with a mounting block, and the vertical threaded through hole is formed in the mounting block.
9. The coil tightness detection device according to claim 1, wherein: and a pressure gauge for displaying water pressure is arranged on the water inlet pipe or the water outlet pipe.
10. A coil tightness testing device according to claim 3, wherein: the water inlet pipe is provided with a first support frame for supporting the water inlet pipe, and the water outlet pipe is provided with a second support frame for supporting the water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320853346.0U CN219532393U (en) | 2023-04-17 | 2023-04-17 | Coil pipe tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320853346.0U CN219532393U (en) | 2023-04-17 | 2023-04-17 | Coil pipe tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219532393U true CN219532393U (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320853346.0U Active CN219532393U (en) | 2023-04-17 | 2023-04-17 | Coil pipe tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219532393U (en) |
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2023
- 2023-04-17 CN CN202320853346.0U patent/CN219532393U/en active Active
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