A water hammer elimination device

Abstract

The present invention relates to the technical field of pipeline transportation equipment, and specifically discloses a water hammer elimination device, which includes an elastic pressure relief device and a pipeline connection assembly; the elastic pressure relief device comprises a housing, a first energy storage body, a second energy storage body and a sealing member; the housing has a receiving cavity and a liquid inlet hole; one end of the first energy storage body is fixedly connected to the sealing member, and the sealing member is configured to abut against the bottom of the receiving cavity through the first energy storage body and seal the liquid inlet hole; a traction member is arranged between the second energy storage body and the sealing member, and the second energy storage body and the sealing member are connected through the traction member; the water hammer impact load will be first borne by the first energy storage body. After the first energy storage body is compressed and undergoes a certain deformation, the traction member will pull the second energy storage body to drive the second energy storage body to work, and transfer the remaining impact load to the second energy storage body. Such a setting can prevent the first energy storage body from frequently reaching the bearing limit and being damaged, and can effectively extend the overall service life.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline conveying equipment, and particularly relates to a water hammer elimination device. Background Art

[0002] Most of the existing water hammer elimination devices can only cope with the in-pipe water hammer pressure within a certain design limit. Different water supply periods or different water supply demands will cause the in-pipe water pressure to be complex and variable. In this case, the in-pipe water hammer pressure generated when the valve is suddenly opened or closed will fluctuate greatly. After the water hammer elimination device has been continuously subjected to the impact of the water hammer load that reciprocates multiple times in a short period of time, the internal key components will gradually age, and the ability to eliminate the water hammer load will gradually decrease, and finally reach the fatigue strength limit and fail. Therefore, it is necessary to develop a water hammer elimination device that can cope with the complex and variable water hammer impact load. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a water hammer elimination device that can cope with the complex and variable water hammer impact load and can simultaneously monitor the real-time service condition of the device, so as to facilitate the staff to understand the situation of the equipment.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A water hammer elimination device includes an elastic pressure relief device and a pipeline connection assembly; the elastic pressure relief device is used to eliminate water hammer; the pipeline connection assembly is configured to be connected to the elastic pressure relief device.

[0006] The elastic pressure relief device includes a housing, a first energy storage body, a second energy storage body, and a sealing member.

[0007] The housing has an accommodation cavity and a liquid inlet hole, the liquid inlet hole is located at the bottom of the accommodation cavity, and the first energy storage body, the second energy storage body, and the sealing member are all located in the accommodation cavity.

[0008] One end of the first energy storage body is fixedly connected to the sealing member, and the sealing member is configured to abut against the bottom of the accommodation cavity through the first energy storage body and block the liquid inlet hole.

[0009] A traction member is arranged between the second energy storage body and the sealing member, the second energy storage body and the sealing member are connected through the traction member, and the traction member is used to transfer at least part of the impact force to the second energy storage body when the first energy storage body is compressed to a set length under the action of the impact force.

[0010] In the water hammer elimination device provided by at least one embodiment of the present disclosure, the pipeline connection assembly has an inclined pipe, the housing is fixedly assembled on the inclined pipe, and the housing is communicated with the pipeline connection assembly through the inclined pipe and the liquid inlet hole, so that water flow can be introduced into the elastic pressure relief device when water hammer occurs.

[0011] In the water hammer elimination device provided by at least one embodiment of the present disclosure, the inclined pipe is inclined in a direction deviating from the central axis of the pipeline connection assembly from the liquid inlet port to the liquid outlet port, and the liquid outlet port of the inclined pipe is biased towards the liquid inlet port of the pipeline connection assembly.

[0012] In the water hammer elimination device provided by at least one embodiment of the present disclosure, the housing includes an upper end cover, a lower end cover and a shell body;

[0013] Both the upper end cover and the lower end cover are fixedly connected to the shell body. The accommodation cavity is located between the upper end cover, the lower end cover and the shell body. The liquid inlet hole is located on the lower end cover. A drain port is arranged on the lower end cover, and a one-way valve is arranged in the drain port to ensure the drain direction.

[0014] In the water hammer elimination device provided by at least one embodiment of the present disclosure, the first energy storage body and the second energy storage body are concentric, and the central axes of the first energy storage body and the second energy storage body are perpendicular to the central axis of the pipeline connection assembly.

[0015] The water hammer elimination device provided by at least one embodiment of the present disclosure further includes a detection device and a terminal.

[0016] The detection device is used to detect the water pressure data in the pipeline connection assembly;

[0017] The terminal is configured to be connected to the detection device, and the terminal is used to receive and record the detection data of the detection device.

[0018] The water hammer elimination device provided by at least one embodiment of the present disclosure further includes a rechargeable power source and a charging device.

[0019] The rechargeable power source is used to supply power to the detection device and the terminal.

[0020] The charging device is used to charge the rechargeable power source.

[0021] In the water hammer elimination device provided by at least one embodiment of the present disclosure, the charging device includes a generator and a spiral spring.

[0022] The spiral spring is wound around the input shaft of the generator. One end of the spiral spring is fixedly connected to the input shaft of the generator, and the other end of the spiral spring is fixedly connected to the plugging member. The spiral spring is configured to contract or stretch following the movement of the plugging member, so that the input shaft of the generator rotates.

[0023] In the water hammer elimination device provided by at least one embodiment of the present disclosure, a perforation paired with the spiral spring is provided on the housing. Both the generator and the spiral spring are located outside the accommodation cavity, and the spiral spring is inserted into the accommodation cavity through the perforation.

[0024] In the water hammer elimination device provided by at least one embodiment of the present disclosure, both the first energy storage body and the second energy storage body are springs.

[0025] The beneficial effects of the present invention are as follows: The water hammer impact load will first be borne by the first energy storage body. After the first energy storage body accumulates a certain amount of deformation, the traction component can drive the second energy storage body to work, transferring the remaining impact load to the second energy storage body, which can prevent the first energy storage body from frequently reaching the load-bearing limit and being damaged, and can effectively extend the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a three-dimensional view of the water hammer elimination device in some embodiments of the present disclosure.

[0028] Figure 2 It is a three-dimensional view of the pipeline connection assembly in some embodiments of the present disclosure.

[0029] Figure 3 It is a distribution schematic diagram of the first energy storage body and the second energy storage body in some embodiments of the present disclosure.

[0030] Figure 4 It is a distribution schematic diagram of the liquid inlet hole and the drain port in some embodiments of the present disclosure.

[0031] Figure 5 It is an internal structure schematic diagram of the elastic pressure relief device in some embodiments of the present disclosure.

[0032] Figure 6 It is a three-dimensional view of the water hammer elimination device in some embodiments of the present disclosure.

[0033] Figure 7 It is a three-dimensional view of the water hammer elimination device in some embodiments of the present disclosure.

[0034] Figure 8 It is a partial internal structure schematic diagram of the water hammer elimination device in some embodiments of the present disclosure.

[0035] Figure 9 Flow chart of the terminal in some embodiments of the present disclosure for calculating the water hammer elimination process

[0036] In the figure:

[0037] 10. Elastic pressure relief device; 12. First energy storage body; 13. Second energy storage body; 14. Sealing member; 15. Traction member; 111. Accommodation cavity; 112. Liquid inlet hole; 113. Upper end cover; 114. Lower end cover; 115. Shell body; 116. Drainage port

[0038] 20. Pipeline connection assembly; 21. Inclined pipe

[0039] 30. Detection device

[0040] 40. Terminal

[0041] 60. Charging device; 61. Generator; 62. Torsion spring Specific embodiments

[0042] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0043] Embodiment 1

[0044] As Figures 1 to 5 shown, this embodiment provides a water hammer elimination device, including an elastic pressure relief device 10 and a pipeline connection assembly 20; the elastic pressure relief device 10 is used to eliminate water hammer; the pipeline connection assembly 20 is configured to be connected to the elastic pressure relief device 10.

[0045] Furthermore, the elastic pressure relief device 10 includes a housing, a first energy storage body 12, a second energy storage body 13 and a sealing member 14.

[0046] Furthermore, the housing has an accommodation cavity 111 and a liquid inlet hole 112, and the first energy storage body 12, the second energy storage body 13 and the sealing member 14 are all located in the accommodation cavity 111.

[0047] Furthermore, one end of the first energy storage body 12 is fixedly connected to the sealing member 14, and the sealing member 14 is configured to abut against the bottom of the accommodation cavity 111 through the first energy storage body 12 and can block the liquid inlet hole 112. When the water hammer phenomenon occurs, the water flow flows into the elastic pressure relief assembly. After the water flow impacts the sealing member 14, the impact force acts on the first energy storage body 12, and the first energy storage body 12 can convert the kinetic energy of the water flow into elastic potential energy, playing a buffering effect on the water flow impact.

[0048] Furthermore, a traction member 15 is disposed between the second energy storage body 13 and the plugging member 14. The second energy storage body 13 and the plugging member 14 are connected by the traction member 15. The traction member 15 is configured to transfer part of the impact force to the second energy storage body 13 when the first energy storage body is compressed to a set length under the action of the impact force.

[0049] Furthermore, the first energy storage body 12 is a compression spring, and the second energy storage body 13 is an annular spring. During use, the compression spring and the annular spring work in combination in stages to cope with complex and variable water hammer pressure loads, effectively reducing the working frequency of the spring members in the strength limit state, ensuring that the spring members in the water hammer elimination device will not be in an extreme elastic deformation state for a long time, and extending the service life of the device.

[0050] Furthermore, the traction member 15 is a traction tie, and the unloading ratio distribution between the compression spring and the annular spring can be achieved by changing the length of the traction tie. Exemplarily, the length of the traction tie is set to 70% of the original length of the compression spring. After the compression spring bears the load and accumulates compression deformation to 70% of its original length, the annular spring on the periphery can be pulled by the traction tie to be compressed, so that the annular spring bears part of the impact load. Similarly, the length of the traction tie can be set with parameters such as 60% or 50% of the original length of the compression spring to achieve different unloading ratio distributions between the compression spring and the annular spring, adapt to the needs of different working environments, and have good overall flexibility. The length of the traction tie can be selected according to the actual situation.

[0051] In this embodiment, the pipeline connection assembly 20 has an inclined pipe 21. The housing is fixedly assembled on the inclined pipe 21, and the housing is communicated with the pipeline connection assembly 20 through the inclined pipe 21 and the liquid inlet hole 112. When water hammer occurs, the water flow can be introduced into the elastic pressure relief device 10.

[0052] Furthermore, the inclined pipe 21 is inclined in a direction deviating from the central axis of the pipeline connection assembly 20 from the liquid inlet port to the liquid outlet port, and the liquid outlet port of the inclined pipe 21 is biased towards the liquid inlet port of the pipeline connection assembly 20. The advantage of such an arrangement is that when there is no water hammer, the fluid in the pipe will flow along the axis of the pipeline connection assembly 20 and is not easily diverted into the elastic pressure relief device 10. When water hammer occurs, it can relieve a certain amount of water flow impact force.

[0053] In this embodiment, the housing includes an upper end cover 113, a lower end cover 114, and a housing body 115;

[0054] Further, both the upper end cover 113 and the lower end cover 114 are fixedly connected to the housing body 115. The accommodation cavity 111 is located between the upper end cover 113, the lower end cover 114 and the housing body 115. The liquid inlet hole 112 is located on the lower end cover 114. A drain port 116 is arranged on the lower end cover 114, and a one-way valve (not shown) is arranged in the drain port 116. The one-way valve only allows liquid to flow out of the accommodation cavity 111 and does not allow liquid to flow into the accommodation cavity 111, which can ensure the drainage direction.

[0055] In this embodiment, the first energy storage body 12 and the second energy storage body 13 are concentric, and the central axes of the first energy storage body 12 and the second energy storage body 13 are perpendicular to the central axis of the pipeline connection assembly 20.

[0056] Embodiment 2

[0057] As Figure 6 shown, this embodiment discloses a water hammer elimination device, which is substantially the same as Embodiment 1, and the differences are as follows:

[0058] In this embodiment, the water hammer elimination device further includes a detection device 30 and a terminal 40.

[0059] Further, the detection device 30 is used to detect the water pressure data in the pipeline connection assembly 20; the terminal 40 is configured to be connected to the detection device 30, and the terminal 40 is used to receive and record the detection data of the detection device 30.

[0060] Further, the detection device 30 adopts an electronic water pressure gauge.

[0061] Further, the working method of the detection device 30 when cooperating with the terminal 40 includes the following steps:

[0062] When the valve is suddenly opened and closed, causing water hammer in the pipeline, the water flow enters the elastic pressure relief device 10 from the inclined pipe along the pipeline connection assembly 20 due to inertia. The water flow impacts the sealing member 14. At this time, the impact load of the water flow will be converted into the elastic potential energy of the compression spring.

[0063] When the water hammer load exceeds the set bearing capacity of the compression spring, the compression rate of the compression spring gradually slows down. At the same time, the compression spring drives the annular spring to compress through the traction tie, so that the water hammer impact load exceeding the set bearing capacity of the compression spring is borne by the annular spring. The compression spring and the annular spring work in a phased elastic combination, which can adapt to complex and changeable water hammer impact loads and can better cope with water hammer impacts exceeding the limit bearing capacity of the compression spring under accidental conditions, ensuring the long-term stable and efficient operation of the water hammer elimination device.

[0064] The terminal inputs the ultimate bearing capacities of the compression spring and the annular spring and sets the ultimate number of uses. During use, the electronic water pressure gauge is used to detect the number of water hammers and the water pressure peak values.

[0065] As Figure 9 shown, the terminal records the number of water hammers and the peak water pressure. By comparing the ultimate bearing capacities of the compression spring and the annular spring, the terminal calculates the water hammer elimination treatment work;

[0066] If the peak water pressure of this water hammer is lower than 80% of the bearing capacity of the compression spring, the water hammer load is completely borne by the compression spring, regarded as a normal working loss of the compression spring, the set number of uses of the compression spring is reduced by one, the annular spring does not work, and the set ultimate number of uses remains unchanged.

[0067] If the peak water pressure of this water hammer is higher than 80% of the bearing capacity of the compression spring, after the compression spring deforms by 80%, its own compression rate slows down, the traction tie belt drives the annular spring to work, and the remaining water hammer load is borne by the annular spring. Finally, this work is regarded as an extraordinary working loss, the set number of uses of the compression spring is reduced by two, and the set number of uses of the annular spring for work is reduced by one.

[0068] By recording the number of water hammer events and the peak water pressure of each water hammer event, and making a linked comparison with the preset number of uses of the key components in the device, it is possible to realize real-time monitoring of the service condition of the device, reasonably predict the service life of the key components, and prevent the water hammer elimination device from crashing due to the aging or unnoticeable damage of the internal components of the device, and being unable to effectively eliminate water hammers.

[0069] Embodiment 3

[0070] As Figure 7 and 8 shown, this embodiment discloses a water hammer elimination device, which is substantially the same as Embodiment 2, and the differences are as follows:

[0071] In this embodiment, the water hammer elimination device further includes a rechargeable power source (not shown) and a charging device 60, and the rechargeable power source and the charging device 60 are electrically connected.

[0072] The rechargeable power source is used to supply power to the detection device 30 and the terminal 40.

[0073] The charging device 60 is used to charge the rechargeable power source.

[0074] In this embodiment, the charging device 60 includes a generator 61 and a winding spring 62.

[0075] Exemplarily, the housing of the generator 61 is fixedly connected to the housing, and the central axis of the generator 61 coincides with the central axis of the housing.

[0076] There are two coiled springs 62, which are axially symmetrically distributed. The coiled springs 62 are wound around the input shaft of the generator 61. One end of the coiled spring 62 is fixedly connected to the input shaft of the generator 61, and the other end of the coiled spring 62 is fixedly connected to the plugging member 14. The coiled spring 62 is configured to contract or stretch following the movement of the plugging member 14, so as to rotate the input shaft of the generator 61.

[0077] Furthermore, a perforation (not shown) paired with the coiled spring 62 is provided on the housing. Both the generator 61 and the coiled spring 62 are located outside the accommodation cavity 111, and the coiled spring 62 is inserted into the accommodation cavity 111 through the perforation.

[0078] When performing the task of eliminating water hammer, the plugging member 14 reciprocates up and down in the vertical direction. During this process, the coiled spring is driven to contract and stretch, so that the coiled spring leaf can drive the input shaft of the generator 61 to rotate, and further drive the power generation work of the generator 61.

[0079] Since the generator will generate electricity when eliminating the water hammer load, it can charge the rechargeable power source to prevent the electronic device from crashing due to the depletion of the battery power after long-term use. Moreover, the pipeline's daily on-off valves are relatively frequent, and the rotating coil cuts the magnetic induction line many times, which is beneficial to power generation.

[0080] Although the embodiments of the present application have been shown and described above, the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be thought of without creative labor should be covered within the protection scope of the present invention; unless otherwise clearly stated, any element, action or instruction used in this article should not be construed as critical or essential.

Claims

1. A water hammer elimination device, characterized in that, Comprising: An elastic pressure relief device for eliminating water hammer; And A pipeline connection assembly configured to be connected to the elastic pressure relief device; Wherein, the elastic pressure relief device includes a housing, a first energy storage body, a second energy storage body and a plugging member; The housing has a receiving cavity and a liquid inlet hole, the liquid inlet hole is on the bottom of the receiving cavity, and the first energy storage body, the second energy storage body and the plugging member are all located in the receiving cavity; One end of the first energy storage body is fixedly connected to the plugging member, and the plugging member is configured to abut against the bottom of the receiving cavity through the first energy storage body and block the liquid inlet hole; A traction member is arranged between the second energy storage body and the plugging member, the second energy storage body and the plugging member are connected by the traction member, and the traction member is used for transferring at least part of the impact force to the second energy storage body when the first energy storage body is compressed to a set length under the action of the impact force.

2. The water hammer elimination device according to claim 1, characterized in that, The pipeline connection assembly has an inclined pipe, the housing is fixedly assembled on the inclined pipe, and the housing is communicated with the pipeline connection assembly through the inclined pipe and the liquid inlet hole, so that water flow can be introduced into the elastic pressure relief device when water hammer occurs.

3. The water hammer elimination device according to claim 2, characterized in that, The inclined pipe is inclined in a direction deviating from the central axis of the pipeline connection assembly from the liquid inlet port to the liquid outlet port, and the liquid outlet port of the inclined pipe is biased towards the liquid inlet port of the pipeline connection assembly.

4. A water hammer elimination device according to claim 1, characterized in that, The housing includes an upper end cover, a lower end cover and a housing body; Both the upper end cover and the lower end cover are fixedly connected to the housing body, the receiving cavity is located between the upper end cover, the lower end cover and the housing body, the liquid inlet hole is located on the lower end cover, and a drain port is arranged on the lower end cover, and a one-way valve is arranged in the drain port to ensure the drain direction.

5. A water hammer elimination device according to claim 1, characterized in that, The first energy storage body and the second energy storage body are concentric, and the central axes of the first energy storage body and the second energy storage body are perpendicular to the central axis of the pipeline connection assembly.

6. The water hammer elimination device according to claim 1, characterized in that, Further comprising: A detection device for detecting the water pressure data in the pipeline connection assembly; And A terminal configured to be connected to the detection device for receiving and recording the detection data of the detection device.

7. The water hammer elimination device according to claim 6, wherein Further comprising: A rechargeable power source for supplying power to the detection device and the terminal; And A charging device for charging the rechargeable power source.

8. The water hammer elimination device according to claim 7, characterized in that, The charging device includes a generator and a spiral spring; The spiral spring is wound around the input shaft of the generator, one end of the spiral spring is fixedly connected to the input shaft of the generator, the other end of the spiral spring is fixedly connected to the plugging member, and the spiral spring is configured to contract or stretch following the movement of the plugging member to rotate the input shaft of the generator.

9. A water hammer elimination device according to claim 8, wherein, A through hole paired with the spiral spring is arranged on the housing, the generator and the spiral spring are both located outside the receiving cavity, and the spiral spring is inserted into the receiving cavity through the through hole.

10. A water hammer elimination device according to claim 5, characterized in that, Both the first energy storage body and the second energy storage body are springs.

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