Adjusting Device and Method for Set Pressure of Safety Valve

Abstract

An embodiment of the present disclosure provides a device and method for adjusting the setting pressure of a safety valve. Among them, the adjustment device includes a plurality of detection parts, a plurality of adjustment parts, and a driving part. The plurality of detection parts are arranged in one-to-one correspondence with a plurality of safety valves to be adjusted, so as to ventilate each safety valve to be adjusted among the plurality of safety valves to be adjusted, and detect the current setting pressure of each safety valve to be adjusted; the plurality of adjustment parts are arranged in one-to-one correspondence with the plurality of safety valves to be adjusted, and receive the current setting pressure of the corresponding detection part of each safety valve to be adjusted among the plurality of safety valves to be adjusted; the driving part is connected in series with the plurality of adjustment parts, and at least one of the plurality of adjustment parts drives the corresponding at least one adjustment part to perform an adjustment operation on the setting pressure of the corresponding at least one safety valve to be adjusted according to the received current setting pressure. Therefore, the adjustment device realizes the integration of the detection and adjustment of the setting pressure of the safety valve, and can ensure the high-efficiency and accurate batch detection and adjustment of the setting pressure of the safety valve.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mechanical detection, and particularly relates to a device and method for adjusting the setting pressure of a safety valve. Background Art

[0002] A safety valve is one of the most widely used safety accessories in high-temperature and high-pressure pressure-bearing equipment such as steam sterilizers, boilers, and pressure pipelines, and pressure vessels, used to prevent the pressure from exceeding the allowable limit value and ensure the safe and reliable operation of the system. Therefore, as the final pressure relief protection device of the production system, the safety valve is often referred to as the last line of defense for the safety of the production system. During the production process of pressure-bearing equipment, a safety valve is generally installed at the outlet of each pressure system and pressure source to provide overpressure protection for the system. Among them, the spring-loaded full-lift safety valve (i.e., the spring safety valve) is the most widely used.

[0003] The opening and closing actions of the spring safety valve rely on the change of the medium pressure at its inlet end and the spring preload to automatically open and close the valve core. When the medium pressure (i.e., the internal pressure) rises to a value where the lifting force is greater than the spring preload, the valve core overcomes the spring preload and automatically opens to release the excess medium, causing the internal pressure to drop. Due to the action of the spring force, when the internal pressure drops to the safe value, the valve core automatically closes and the release stops. According to the above technical principle of the spring safety valve, when measuring or adjusting the safety valve online (i.e., in the hot state), if an upward additional force is provided externally, the valve core will also open when the sum of the medium pressure and this additional force just overcomes the spring preload. Even under the offline (i.e., cold state) condition without the action of the medium, the valve core can also be opened when the external additional force alone overcomes the spring preload.

[0004] However, the adjustable setting pressure of the safety valve makes it possible that even the same type and the same product may have different setting pressures. In addition, there are also quality differences in the corresponding safety valves, which can also be reflected by the setting pressure. This requires the detection and adjustment of the setting pressure of the safety valve. The traditional detection and adjustment of safety valves still lack a more effective and unified batch detection method, and generally can only be carried out in the form of "one valve, one detection, and one adjustment", which results in a long detection cycle and extremely low efficiency of the safety valve. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] To solve the technical problem that the detection and adjustment of the setting pressure of the safety valve in the prior art are extremely inefficient due to the traditional form of "one valve, one detection, and one adjustment", the embodiments of the present disclosure provide a device and method for adjusting the setting pressure of the safety valve.

[0007] (2) Technical Solutions

[0008] One aspect of the present disclosure provides an adjusting device for the setting pressure of a safety valve, which includes a plurality of detection parts, a plurality of adjusting parts, and a driving part. The plurality of detection parts are arranged in one-to-one correspondence with a plurality of safety valves to be adjusted, so as to ventilate each safety valve to be adjusted among the plurality of safety valves to be adjusted, and detect the current setting pressure of each safety valve to be adjusted; the plurality of adjusting parts are arranged in one-to-one correspondence with the plurality of safety valves to be adjusted, and receive the current setting pressure of the corresponding detection part of each safety valve to be adjusted among the plurality of safety valves to be adjusted; the driving part is connected in series with the plurality of adjusting parts, and at least one adjusting part among the plurality of adjusting parts drives the corresponding at least one adjusting part to perform an adjusting operation on the setting pressure of the corresponding at least one safety valve to be adjusted according to the received current setting pressure.

[0009] According to an embodiment of the present disclosure, each detection part of the plurality of detection parts includes a ventilation pipeline and a pressure sensor. The ventilation pipeline is connected to a corresponding one of the plurality of safety valves to be adjusted; the pressure sensor is arranged at the top of the ventilation pipeline for detecting the current setting pressure of the corresponding safety valve to be adjusted.

[0010] According to an embodiment of the present disclosure, each detection part of the plurality of detection parts further includes a branch valve, and the branch valve is located at the end of the ventilation pipeline for controlling the opening and closing of the gas path of the ventilation pipeline.

[0011] According to an embodiment of the present disclosure, each adjusting part of the plurality of adjusting parts includes a driving bevel gear and a driven bevel gear. The driving bevel gear is sleeved on the main shaft of the driving part; the driven bevel gear corresponds to the driving bevel gear and is located on one side of the driving bevel gear.

[0012] According to an embodiment of the present disclosure, each adjusting part of the plurality of adjusting parts further includes a return spring and an electromagnet. The return spring is sleeved on the main shaft of the driving part, and one end of the return spring abuts against the driving bevel gear; the electromagnet is sleeved on the main shaft of the driving part and abuts against the other end of the return spring.

[0013] According to an embodiment of the present disclosure, each adjusting part of the plurality of adjusting parts further includes a valve connection part. The valve connection part is located below the driven bevel gear, one end of the valve connection part is fixedly connected to the driven bevel gear, and the other end is fixedly connected to the adjusting bolt of the corresponding safety valve to be adjusted; wherein, the other end of the safety valve to be adjusted opposite to the end where the adjusting bolt is located is connected to the ventilation pipeline of the corresponding detection part.

[0014] According to an embodiment of the present disclosure, the driving part includes a main shaft, a coupling, and a servo motor. The main shaft penetrates through the plurality of adjusting parts and connects the plurality of adjusting parts in series; one end of the coupling is connected to one end of the main shaft for transmitting the rotational movement to the main shaft; the servo motor is connected to the other end of the coupling for outputting a driving force to drive the coupling to generate a rotational movement.

[0015] According to an embodiment of the present disclosure, the adjusting device for the setting pressure of the safety valve further includes an air tank, which is located on one side of the plurality of detection parts and the plurality of adjusting parts, and is connected to the air pipe of each detection part of the plurality of detection parts, and is used to introduce gas into the air pipe of at least one detection part of the plurality of detection parts.

[0016] According to an embodiment of the present disclosure, the adjusting device for the setting pressure of the safety valve further includes a main adjusting pipeline and a main pipeline valve. The main adjusting pipeline is horizontally located between the air tank and the air pipe of each detection part of the plurality of detection parts, and communicates with the end of the air pipe of each detection part and the air tank; the main pipeline valve is located at the top of the main adjusting pipeline and is used to adjust the air pressure in the main adjusting pipeline.

[0017] Another aspect of the present disclosure provides an adjusting method for the adjusting device of the setting pressure of the safety valve as described above, which includes: ventilating each of the plurality of safety valves to be adjusted corresponding to the plurality of detection parts of the adjusting device to detect the current setting pressure of each safety valve to be adjusted; using the plurality of adjusting parts of the adjusting device to receive the current setting pressure of the corresponding detection part of each safety valve to be adjusted; and driving at least one of the plurality of adjusting parts by the driving part to perform an adjusting operation on the setting pressure of the corresponding at least one safety valve to be adjusted.

[0018] (III) Beneficial effects

[0019] The embodiment of the present disclosure provides an adjusting device and method for the setting pressure of a safety valve. Among them, the adjusting device includes a plurality of detection parts, a plurality of adjusting parts and a driving part. The plurality of detection parts are arranged in one-to-one correspondence with the plurality of safety valves to be adjusted to ventilate each of the plurality of safety valves to be adjusted and detect the current setting pressure of each safety valve to be adjusted; the plurality of adjusting parts are arranged in one-to-one correspondence with the plurality of safety valves to be adjusted and receive the current setting pressure of the corresponding detection part of each safety valve to be adjusted; the driving part is connected in series with the plurality of adjusting parts, and at least one of the plurality of adjusting parts drives the corresponding at least one adjusting part to perform an adjusting operation on the setting pressure of the corresponding at least one safety valve to be adjusted according to the received current setting pressure. Therefore, the adjusting device realizes the integration of the detection and adjustment of the setting pressure of the safety valve, can ensure the high-efficiency and accurate batch detection and adjustment of the setting pressure of the safety valve, the detection result is accurate, the adjustment accuracy is extremely high, and the equipment volume is small and easy to carry. Description of the drawings

[0020] Figure 1 Schematically shows a three-dimensional view of the structural composition of the adjusting device for the setting pressure of the safety valve according to an embodiment of the present disclosure;

[0021] Figure 2 Schematically shows corresponding to the above according to an embodiment of the present disclosure Figure 1Top view of the structural composition of the regulating device for the set pressure of the shown safety valve;

[0022] Figure 3 Schematically shows the corresponding one according to an embodiment of the present disclosure for the above Figure 1 Side view of the structural composition of the regulating device for the set pressure of the shown safety valve;

[0023] Figure 4 Schematically shows the corresponding one according to an embodiment of the present disclosure for the above Figure 1 Stereogram of the structural composition of the partial area E of the regulating device for the set pressure of the shown safety valve;

[0024] Figure 5 Schematically shows the flowchart of the regulating method of the regulating device for the set pressure of the safety valve according to an embodiment of the present disclosure. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in detail with reference to specific embodiments and the accompanying drawings.

[0026] It should be noted that, in the accompanying drawings or the text of the specification, the implementation manners that are not depicted or described are all forms known to those of ordinary skill in the art and are not elaborated in detail. In addition, the definitions of the above-mentioned various elements and methods are not limited to the specific structures, shapes or manners mentioned in the embodiments, and those of ordinary skill in the art can make simple changes or substitutions thereto.

[0027] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only references to the directions in the accompanying drawings and are not used to limit the protection scope of the present disclosure. Throughout the accompanying drawings, the same elements are represented by the same or similar reference numerals. When it may cause confusion in the understanding of the present disclosure, the conventional structures or configurations will be omitted.

[0028] And the shapes and sizes of the various components in the figures do not reflect the actual sizes and proportions, but only schematically show the content of the embodiments of the present disclosure. Additionally, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claims.

[0029] Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" placed before an element does not exclude the presence of a plurality of such elements.

[0030] The ordinal terms used in the description and claims, such as "first", "second", "third", etc., are used to modify the corresponding elements. By themselves, they do not imply any ordinal number for the elements, nor do they represent the order of one element relative to another or the order in the manufacturing method. The use of these ordinal terms is only to clearly distinguish one element with a certain name from another element with the same name.

[0031] Those skilled in the art can understand that the modules in the devices in the embodiments can be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments can be combined into one module or unit or component, and in addition, they can be divided into multiple sub-modules or sub-units or sub-components. Except that at least some of such features and / or processes or units are mutually exclusive, any combination can be adopted to combine all the features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all the processes or units of any method or device thus disclosed. Unless otherwise explicitly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) can be replaced by an alternative feature that provides the same, equivalent, or similar purpose. And, in the unit claims listing several devices, several of these devices can be embodied by the same hardware item.

[0032] Similarly, it should be understood that, in order to streamline the present disclosure and help understand one or more of the various disclosed aspects, in the above description of the exemplary embodiments of the present disclosure, the various features of the present disclosure are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be construed as reflecting the intention that the claimed present disclosure requires more features than those expressly recited in each claim. Rather, as reflected in the following claims, the disclosed aspects lie in less than all the features of the single foregoing disclosed embodiment. Thus, the claims following the detailed description hereby expressly incorporate the detailed description, where each claim itself serves as a separate embodiment of the present disclosure.

[0033] To solve the technical problem that the detection and adjustment of the set pressure of a safety valve in the prior art are extremely inefficient due to the traditional form of "one valve, one detection, one adjustment", the embodiments of the present disclosure provide an adjustment device and method for the set pressure of a safety valve.

[0034] As Figures 1-4 shown, one aspect of the present disclosure provides an adjustment device for the set pressure of a safety valve, which includes a plurality of detection parts 101, a plurality of adjustment parts 102, and a driving part 103.

[0035] A plurality of detection units 101 are provided in one-to-one correspondence with a plurality of safety valves A to be adjusted, so as to ventilate each safety valve A to be adjusted among the plurality of safety valves A to be adjusted, and detect the current setting pressure of each safety valve A to be adjusted.

[0036] A plurality of adjustment units 102 are provided in one-to-one correspondence with the plurality of safety valves A to be adjusted, and receive the current setting pressure of the corresponding detection unit 101 of each safety valve A to be adjusted among the plurality of safety valves A to be adjusted.

[0037] The driving unit 103 is connected in series with the plurality of adjustment units 102, and at least one of the plurality of adjustment units 102 drives the corresponding at least one adjustment unit 102 to perform an adjustment operation of the setting pressure on the corresponding at least one safety valve A according to the received current setting pressure.

[0038] One detection unit 101 is connected to a corresponding one safety valve A, and can ventilate the safety valve A with a certain matching air pressure, and detect the current setting pressure of the safety valve A by means of this ventilation operation.

[0039] One adjustment unit 102 is connected to a corresponding one safety valve A of the corresponding one detection unit 101, and can be specifically connected to the setting pressure adjustment mechanism of the safety valve A itself. After further receiving the current setting pressure of the safety valve A detected by the detection unit 101, according to the comparison result between the current setting pressure of the safety valve A and the set setting pressure range corresponding to the safety valve A, judge the setting pressure value of the safety valve A to determine whether the safety valve A is abnormal (for example, its current setting pressure exceeds the set setting pressure range). If it is within the set setting pressure range, the safety valve A does not have an abnormal situation (such as damage or unqualified quality, etc.). At the same time, if the current setting pressure of the safety valve is within the error range compared with the set target setting pressure within the above set setting pressure range, it can be determined that the safety valve A does not need to be adjusted. On the contrary, if the current setting pressure of the safety valve A exceeds the set setting pressure range, it is determined that the safety valve A is in an abnormal situation, and the safety valve needs to be directly screened out and another safety valve A is replaced to re-perform the detection. Among them, if the current setting pressure of the safety valve A is within the set setting pressure range and not within the error range of the above set target setting pressure, it can be determined that the safety valve A needs to be adjusted. Specifically, when the current gas pressure of the corresponding safety valve A does not reach the set setting pressure, the safety valve will lift; when it reaches the corresponding setting pressure, the safety valve will not lift, and at this time, it is actually necessary to adjust its setting pressure until it lifts.

[0040] Specifically, by means of the connection between the adjusting part 102 and the setting pressure adjusting mechanism of the safety valve A, the setting pressure adjusting mechanism can be adjusted forward or backward to increase or decrease its setting pressure, so that it finally meets the above-mentioned set setting pressure range and is within the error range of the set target setting pressure. In this way, it can be determined that the safety valve A is in an available state and can be used at any time. For each safety valve, there will be a setting pressure adjusting mechanism. For example, the top of a spring safety valve has a bolt. By rotating the bolt clockwise or counterclockwise, the bolt is screwed in or out, so that the setting pressure of the spring safety valve increases or decreases. Details are not described herein.

[0041] The driving part 103 can be connected in series with all the multiple adjusting parts 102. By driving and adjusting at least one of the multiple adjusting parts 102, it is possible to simultaneously adjust at least one safety valve A that needs to perform setting pressure adjustment. For the situation of simultaneously adjusting multiple safety valves A to be adjusted, since the adjustment ranges required for each of them are different, the corresponding adjusting part 102 can be controlled first to adjust the corresponding safety valve A to a general range, and then these adjusting parts 102 can be controlled one by one to perform fine adjustment on the corresponding safety valve A, and finally the detection and adjustment of all safety valves A are completed one by one. If the adjustment ranges are the same, accurate adjustment of all safety valves A to be adjusted can be directly achieved.

[0042] It can be seen that one detection part 101 corresponds to detecting the current setting pressure of one safety valve A. At the same time, one adjusting part 102 corresponds to adjusting the setting pressure of one safety valve A. Multiple detection parts 101 and multiple adjusting parts 102 are arranged around one driving part 103, and the driving part 103 can simultaneously adjust multiple safety valves A corresponding to multiple adjusting parts 102, and can also perform fine adjustment on multiple safety valves A one by one by controlling their corresponding adjusting parts 102 on this basis, and finally realize the detection and adjustment of all safety valves A. Among them, if there are multiple different types of safety valves among multiple safety valves, they can be classified and adjusted uniformly. Specifically, the driving part 103 can realize batch detection and adjustment according to the set electric control parameters.

[0043] Therefore, the adjustment device realizes the integration of the detection and adjustment of the setting pressure of the safety valve, can ensure the high-efficiency and accurate batch detection and adjustment of the setting pressure of the safety valve, the detection result is accurate, the adjustment accuracy is extremely high, and the equipment volume is small, which is convenient to carry.

[0044] As Figures 1-4 shown, according to an embodiment of the present disclosure, each of the multiple detection parts 101 includes an air vent pipeline 110 and a pressure sensor 120.

[0045] The vent pipe 110 is connected to one of the multiple safety valves A to be adjusted, corresponding to one safety valve A to be adjusted.

[0046] The pressure sensor 120 is arranged at the top of the vent pipe 110 and is used to detect the current setting pressure of the corresponding safety valve A to be adjusted.

[0047] The vent pipe 110 is connected to one corresponding safety valve A to be adjusted and introduces gas into the safety valve A to be adjusted, forming a matching air pressure for the safety valve A. Thus, it is easy to detect the setting pressure of the safety valve A by means of this ventilation.

[0048] The pressure sensor 120 is located at the top of the vent pipe 110 and can detect the air pressure of the vent pipe. When the vent pipe 110 is connected to the safety valve A and provides air pressure for the safety valve, the current setting pressure of the corresponding safety valve A can be obtained by means of the introduced air pressure in the vent pipe 110 and the air pressure parameters detected by the pressure sensor 120. Among them, the definition of the setting pressure and the relationship between the current setting pressure and the input air pressure and the detected air pressure will not be elaborated.

[0049] Therefore, the current setting pressure of the corresponding safety valve A can be accurately obtained by the detection unit 101, so that the adjustment unit can subsequently accurately adjust the safety valve A.

[0050] As Figures 1-4 shown, according to an embodiment of the present disclosure, each detection unit 101 of the multiple detection units 101 further includes a branch valve 130. The branch valve is located at the end of the vent pipe 110 and is used to control the opening and closing of the air path of the vent pipe 110.

[0051] When the branch valve 130 is opened, gas can be introduced into the vent pipe 110, thereby performing air pressure matching for the corresponding safety valve A. If the branch valve 130 remains closed, the air path in the vent pipe 110 cannot be opened, so that gas cannot be further introduced into it to achieve the corresponding air pressure matching. In some cases, after the branch valve 130 is opened, gas is introduced into the vent pipe 110, and after the air pressure is stabilized, the branch valve 130 is closed, and at the same time, the connection path between the vent pipe 110 and the corresponding safety valve A is opened, so that the pressure sensor detects the air pressure change of the vent pipe 110 connected to the safety valve A, and the current setting pressure of the safety valve A can be obtained more accurately.

[0052] Among them, the shunt valve 130 can be a pneumatic circuit switch for controlling the opening and closing of the ventilation pipeline 110. Each ventilation pipeline 110 corresponds to a shunt valve 130. Therefore, when gas is introduced into multiple ventilation pipelines 110, the corresponding multiple shunt valves 130 can be opened correspondingly. Among them, if the matching air pressures corresponding to different types of safety valves are inconsistent, the gases with different air pressures can be introduced at staggered times, so as to realize the setting pressure detection of the corresponding safety valves.

[0053] As Figures 1-4 shown, according to an embodiment of the present disclosure, each of the multiple adjusting parts 102 includes a driving bevel gear 210 and a driven bevel gear 220.

[0054] The driving bevel gear 210 is sleeved on the main shaft 310 of the driving part 103;

[0055] The driven bevel gear 220 corresponds to the driving bevel gear 210 and is located on one side of the driving bevel gear 210.

[0056] The driving bevel gear 210 can move back and forth on the main shaft 310 of the driving part 103, while the position of the driven bevel gear relative to the main shaft 310 does not change and is located on the lower side of the main shaft 310 in front of the driving bevel gear 210. When the driving bevel gear 210 is driven to move forward by force and is blocked by the driven bevel gear 220, the driving bevel gear 210 can be engaged with the driven bevel gear 220, so that when the driving bevel gear 210 rotates, it can drive the driven bevel gear 220 to rotate together. Among them, when the driving bevel gear 210 rotates in the vertical plane, it can drive the driven bevel gear 220 to rotate in the horizontal plane.

[0057] The main shaft 310 of the driving part 103 can be electrically controlled and driven by the driving part 103 to perform a self-rotation action, that is, to rotate around its axis. Since the driving bevel gear 210 can be structurally clamped with the surface of the main shaft 310, the driving bevel gear 210 can only move back and forth along the axis relative to the main shaft 310 and is fixed relative to the main shaft 310. That is, when the main shaft 310 rotates, it will drive the driving bevel gear 210 to rotate together relative to the axis of the main shaft 310, thereby driving the driving bevel gear 210 to rotate.

[0058] Among them, when the driving bevel gear 210 is acted upon by an opposite force, it can be driven to move backward and disengaged from the driven bevel gear 220 to maintain a certain distance. That is, at this time, although the driving bevel gear 210 can still rotate with the main shaft 310, it cannot drive the driven bevel gear 220 to rotate.

[0059] Therefore, by means of the above-described method that can control the separation and engagement of the driving bevel gear 210 and the driven bevel gear 220 in the front and rear directions, the opening and closing of the adjusting portion 102 corresponding to a single safety valve A can be achieved. That is, when it is necessary to adjust the corresponding safety valve A, the driving portion 103 can thereby provide the corresponding adjusting driving force for its corresponding safety valve A. However, when it is not necessary to adjust the safety valve A, the driving bevel gear 210 and the driven bevel gear 220 can be separated, so that the adjustment of other safety valves can be achieved without adjusting this safety valve.

[0060] As Figures 1-4 shown, according to an embodiment of the present disclosure, each of the plurality of adjusting portions 102 further includes a return spring 230 and an electromagnet 240.

[0061] The return spring 230 is sleeved on the main shaft 310 of the driving portion 103, and one end of the return spring 230 abuts against the driving bevel gear 210;

[0062] The electromagnet 240 is sleeved on the main shaft 310 of the driving portion 103 and abuts against the other end of the return spring 230.

[0063] The return spring 230 can provide a restoring force to the driving bevel gear 210, so that it maintains the engaged state with the driven bevel gear 220 as the original state. However, when the corresponding safety valve A does not need to perform an adjustment operation, the electromagnet can be energized, so that the electromagnet generates an attractive force after being energized. This attractive force can overcome the restoring force provided by the return spring 230, so that the driving bevel gear 210 can approach the electromagnet 240, thereby reaching a separated state of being separated from the corresponding driven bevel gear 220 from the original engaged state. Furthermore, it can be ensured that when the driving bevel gear rotates with the main shaft 310, it will not drive the corresponding driven bevel gear 220 to rotate. Among them, the above-mentioned method is only a specific case of the embodiments of the present disclosure. The original state of the driving bevel gear 210 and the driven bevel gear 220 can also be a separated state of non-engagement. The electromagnet 240 can also remove the attractive force after being energized and generate an attractive force after being powered off, or generate an attractive force after being energized and generate a repulsive force when a reverse electrical signal is applied, specifically based on its ability to "control the driving bevel gear 210 and the driven bevel gear 220 to be separated and engaged according to the adjustment requirements of the corresponding safety valve", which will not be elaborated here.

[0064] In this way, it is possible to achieve automated and intelligent control for the driving bevel gear 210 and the driven bevel gear 220 to be separated and engaged according to the adjustment requirements of the corresponding safety valve, greatly improving the adjustment efficiency of the safety valve adjustment, and further ensuring the adjustment accuracy of each safety valve. That is, manpower is liberated through a simple structure design, and batch high-precision safety valve detection and adjustment are realized.

[0065] As Figures 1-4 shown, according to an embodiment of the present disclosure, each of the plurality of adjusting portions 102 further includes a valve connection portion 250.

[0066] The valve connection portion 250 is located below the driven bevel gear 220. One end of the valve connection portion 250 is fixedly connected to the driven bevel gear 220, and the other end is fixedly connected to the adjusting bolt of the corresponding safety valve A to be adjusted;

[0067] Wherein, the other end of the safety valve A to be adjusted, which is opposite to the end where the adjusting bolt is located, is connected to the ventilation pipeline 110 of the corresponding detection portion 101.

[0068] The upper end of the valve connection portion 250 is fixed below the driven bevel gear 220 and is fixed to the driven bevel gear 220, so that when the driven bevel gear 220 is driven to rotate by the driving bevel gear 210, it can rotate together with the driven bevel gear 220. Among them, the lower end of the valve connection portion 250 can be a socket, which can be sleeved on the upper end of the corresponding safety valve A as the adjusting bolt of its set pressure adjusting mechanism. The inner wall surface of the socket is designed to match the outer wall surface of the adjusting bolt, so that when rotating, the adjusting bolt can be driven to rotate together.

[0069] The lower end of the safety valve A connected to the socket of the corresponding valve connection portion 250 can be communicated with the ventilation pipeline 110 of the detection portion 101 corresponding to the adjusting portion 102. Thus, when the pressure sensor 120 of the corresponding detection portion 101 detects the air pressure change in the ventilation pipeline 110, it can accurately reflect the current set pressure of the safety valve A, and when adjusting the adjusting bolt of the safety valve A, it can accurately adjust in accordance with the detected air pressure change in the ventilation pipeline 110 to reflect the adjustment change of the current set pressure of the safety valve A in real time. In this way, precise adjustment of the set pressure of each safety valve A can be achieved, that is, manpower is liberated through a simple structure design, and batch high-precision safety valve detection and adjustment are realized.

[0070] As Figures 1-4 shown, according to an embodiment of the present disclosure, the driving portion 103 includes a main shaft 310, a coupling 320, and a servo motor 330.

[0071] The main shaft 310 passes through the plurality of adjusting portions 102 and connects the plurality of adjusting portions 102 in series;

[0072] One end of the coupling 320 is connected to one end of the main shaft 310 for transmitting the rotational motion to the main shaft 310;

[0073] The servo motor 330 is connected to the other end of the coupling 320 for outputting a driving force to drive the coupling 320 to rotate.

[0074] The main shaft 310 is an output shaft structure, which can rotate clockwise or counterclockwise, thereby driving each driving bevel gear 210 arranged opposite thereto to rotate clockwise or counterclockwise. When the corresponding driving bevel gear 210 is meshed with the corresponding driven bevel gear 220, the driven bevel gear 220 can be driven to rotate, so as to utilize its valve connection part 250 to adjust the corresponding safety valve A clockwise or counterclockwise, so that the set pressure of the safety valve A is increased or decreased.

[0075] The coupling 320 can transmit the driving force output by the output shaft of the servo motor 330 to the main shaft 310. When the output shaft of the servo motor 330 rotates clockwise, the coupling 320 drives the main shaft 310 to rotate clockwise. Conversely, it drives the main shaft 310 to rotate counterclockwise.

[0076] Therefore, the driving unit 103 can, with the help of the main shaft 310 and its supporting structure, perfectly realize the fully automated and precise batch adjustment of the safety valves A with multiple different set pressure adjustment requirements.

[0077] It should be noted that if Figures 1-3 As shown, the above-mentioned detection part 101, adjustment part 102 and driving part 103 of the embodiment of the present disclosure can be designed with the help of a support structure 107. The support structure 107 can provide a more stable structural form for the safety valve set pressure regulating device, support it to make corresponding adjustments or detection actions, and also play a role in corresponding structural protection and preventing detection personnel from being injured. The details are not elaborated herein.

[0078] like Figures 1-4 As shown, according to an embodiment of the present disclosure, the regulating device for the set pressure of the safety valve also includes a gas tank 104, which is located on one side of the multiple detection parts 101 and the multiple regulating parts 102, and is connected to the ventilation pipeline 110 of each detection part 101 of the multiple detection parts 101, and is used to introduce gas into the ventilation pipeline 110 of at least one detection part 101 among the multiple detection parts 101.

[0079] The gas cylinder 104 is a cylinder structure, which can be filled with gases that meet a certain air pressure value inside, such as inert gases, hydrogen, oxygen, or even steam, etc., without specific restrictions. The gas cylinder 104 can be used as a gas source for the detection unit 101 to perform the setting pressure detection on the corresponding safety valve A, and can also be used as a gas source for performing setting pressure adjustment based on the above detection. Specifically, a plurality of ventilation pipelines 110 corresponding to the above-mentioned plurality of detection units 101 can be set, which are respectively connected to the gas cylinder 104, and when the branch valve 130 of the ventilation pipeline 110 is opened, gas is filled into the corresponding ventilation pipeline 110, so that the ventilation pipeline 110 can have an air pressure matching the safety valve A set corresponding to it. Among them, since each branch valve 130 can be individually opened to control the ventilation of the corresponding ventilation pipeline 110, this further improves the freedom of branch control adjustment of the corresponding safety valve, can greatly improve the accuracy of batch adjustment of the safety valve, and can also ensure the corresponding adjustment efficiency, having great commercial utilization value.

[0080] Such as Figures 1-4 As shown, according to an embodiment of the present disclosure, the device for adjusting the setting pressure of the safety valve further includes a total adjustment pipeline 105 and a main valve 106.

[0081] The total adjustment pipeline 105 is horizontally located between the gas cylinder 104 and the ventilation pipelines 110 of each detection unit 101 among the plurality of detection units 101, and connects the ends of the ventilation pipelines 110 of each detection unit 101 and the gas cylinder 104;

[0082] The main valve 106 is located at the top of the total adjustment pipeline 105 and is used to adjust the air pressure in the total adjustment pipeline 105.

[0083] The total adjustment pipeline 105 connects the ends of all the ventilation pipelines 110, but does not affect the control of the connection or disconnection of the corresponding branch valve 130 on each ventilation pipeline 110 to its respective ventilation pipeline 110. At the same time, the total adjustment pipeline 105 is also connected to the gas cylinder 105. Therefore, the gas cylinder 105 can realize the gas input to each ventilation pipeline 110 that needs to be ventilated through the total adjustment pipeline 105. On the other hand, the air pressure in the total adjustment pipeline 105 can be kept consistent with the air pressure value output by the gas cylinder 105, so that the same gas can be simultaneously introduced into the ventilation pipelines 105 corresponding to the safety valves with the same type or similar adjustment requirements to provide the same air pressure, thereby greatly improving the efficiency of batch adjustment of the safety valve.

[0084] The main line valve 106 is connected to one end of the main adjustment pipeline 105, and can further adjust the air pressure in the main adjustment pipeline 105, so as to achieve the corresponding air pressure adjustment effect when the air pressure therein is too high, thereby preventing the air pressure in the main adjustment pipeline 105 from being maintained within the normal range, and achieving the effect of protecting the pipeline and the air tank 105 and the corresponding branch valves.

[0085] As Figure 5 shown, another aspect of the present disclosure provides an adjustment method for the adjustment device of the set pressure of the above-mentioned safety valve, wherein, with reference to the above Figures 1-4 shown, it includes steps S501 - S503.

[0086] In step S501, each of the plurality of safety valves to be adjusted A corresponding to the adjustment device is ventilated through the plurality of detection parts 101 of the adjustment device, and the current set pressure of each safety valve to be adjusted A is detected;

[0087] In step S502, the plurality of adjustment parts 102 of the adjustment device receive the current set pressure corresponding to each safety valve to be adjusted A; and

[0088] In step S503, the driving part 103 drives the corresponding at least one adjustment part 102 to perform an adjustment operation on the set pressure of the corresponding at least one safety valve to be adjusted A.

[0089] Specifically, when the current gas pressure of the corresponding safety valve A does not reach the set set pressure, the safety valve will trip. At this time, the servo motor 330 of the driving part 103 is controlled to rotate forward or backward, driving the main shaft 310 to rotate. The torque is transmitted through the main shaft bevel gear 210 and the meshing driven bevel gear 220 to the adjustment bolt at the top of the safety valve, driving the safety valve bolt to rotate, so as to achieve the purpose of adjusting the set pressure of the regulator; and when the corresponding set pressure is reached, the safety valve will not trip. At this time, the set pressure can actually be continuously adjusted until it trips.

[0090] Therefore, by means of the adjustment method and device of the above-mentioned embodiment of the present disclosure, regardless of the number and type of safety valves, or whether it is to increase or decrease the set pressure, the electrical control parameters of the adjustment device of the above-mentioned embodiment of the present disclosure can be set, so as to realize the batch, automatic and intelligent high-precision and high-efficiency rapid detection of multiple safety valves. The overall device structure form is highly simplified, can be made portable and easy to carry, and has extremely high commercial utilization value. In addition, compared with the traditional pure manual one-valve-one-detection method, it can realize the simultaneous separate detection and simultaneous adjustment of safety valves, greatly improving the efficiency, significantly shortening the cycle, and also significantly improving the adjustment accuracy of the set pressure of each safety valve.

[0091] So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings.

[0092] The specific embodiments described above further elaborate on the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjusting device for the setting pressure of a safety valve, wherein, Including: A plurality of detection units, which are arranged in one-to-one correspondence with a plurality of safety valves to be adjusted, to ventilate each safety valve to be adjusted among the plurality of safety valves to be adjusted, and detect the current setting pressure of each safety valve to be adjusted; A plurality of adjustment units, which are arranged in one-to-one correspondence with the plurality of safety valves to be adjusted, and receive the current setting pressure of the corresponding detection unit of each safety valve to be adjusted among the plurality of safety valves to be adjusted; A driving unit, which is connected in series with the plurality of adjustment units, and when at least one of the plurality of adjustment units drives the corresponding at least one safety valve to be adjusted to perform an adjustment operation of the setting pressure according to the received current setting pressure; Wherein, each of the plurality of adjustment units includes: A driving bevel gear, sleeved on the main shaft of the driving unit; A driven bevel gear, corresponding to the driving bevel gear and located on one side of the driving bevel gear; Wherein, each of the plurality of adjustment units further includes: A return spring, sleeved on the main shaft of the driving unit, and one end of the return spring abuts against the driving bevel gear; An electromagnet, sleeved on the main shaft of the driving unit, and abuts against the other end of the return spring.

2. The adjusting device for the setting pressure of the safety valve according to claim 1, wherein, Each of the plurality of detection units includes: An air pipe, connected to a corresponding one of the plurality of safety valves to be adjusted; A pressure sensor, arranged at the top of the air pipe, for detecting the current setting pressure of the corresponding safety valve to be adjusted.

3. The adjusting device for the setting pressure of the safety valve according to claim 2, wherein, Each of the plurality of detection units further includes: A shunt valve, located at the end of the air pipe, for controlling the opening and closing of the air path of the air pipe.

4. The adjusting device for the setting pressure of the safety valve according to claim 1, wherein, Each of the plurality of adjustment units further includes: A valve connection part, located below the driven bevel gear, one end of the valve connection part is fixedly connected to the driven bevel gear, and the other end is fixedly connected to the adjustment bolt of the corresponding safety valve to be adjusted; Wherein, the other end of the safety valve to be adjusted opposite to the end where the adjustment bolt is located is connected to the air pipe of the corresponding detection unit.

5. The adjusting device for the set pressure of the safety valve according to claim 1, wherein, The driving unit includes: A main shaft, passing through the plurality of adjustment units and connecting the plurality of adjustment units in series; A coupling, one end of which is connected to one end of the main shaft, for transmitting the rotational movement to the main shaft; A servo motor, connected to the other end of the coupling, for outputting a driving force to drive the coupling to generate a rotational movement.

6. The adjusting device for the set pressure of the safety valve according to claim 1, wherein, Further including: An air tank, located on one side of the plurality of detection units and the plurality of adjustment units, and connected to the air pipes of each of the plurality of detection units, for introducing gas into the air pipes of at least one of the plurality of detection units.

7. The adjusting device for the set pressure of the safety valve according to claim 6, wherein, Further including: A main adjustment pipeline, horizontally located between the air tank and the air pipes of each of the plurality of detection units, connecting the end of the air pipe of each detection unit and the air tank; A main pipeline valve, located at the top of the main adjustment pipeline, for adjusting the air pressure in the main adjustment pipeline.

8. A method for adjusting the setting pressure of a safety valve, which is an adjusting device according to any one of claims 1-7, wherein, Including: Ventilating each safety valve to be adjusted among the plurality of safety valves to be adjusted corresponding to the plurality of detection units of the adjustment device, and detecting the current setting pressure of each safety valve to be adjusted; Using the plurality of adjustment units of the adjustment device to receive the current setting pressure corresponding to each safety valve to be adjusted; And The driving part is used to drive the corresponding at least one adjusting part to perform an adjusting operation on the setting pressure of the corresponding at least one safety valve to be adjusted.

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