CN220646965U - Relief pressure valve with gas tightness monitoring function - Google Patents
Relief pressure valve with gas tightness monitoring function Download PDFInfo
- Publication number
- CN220646965U CN220646965U CN202321494638.6U CN202321494638U CN220646965U CN 220646965 U CN220646965 U CN 220646965U CN 202321494638 U CN202321494638 U CN 202321494638U CN 220646965 U CN220646965 U CN 220646965U
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- Prior art keywords
- reducing valve
- pressure reducing
- filter screen
- valve body
- pressure
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 244000309464 bull Species 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035508 accumulation Effects 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a pressure reducing valve with an air tightness monitoring function, which comprises a pressure reducing valve body, wherein one side of the pressure reducing valve body is communicated with a water pipe, a differential pressure sensor is arranged on the water pipe, the inner wall of the water pipe is rotationally connected with a rotating rod, the rotating rod is connected with a filter screen through threads, and the top of the rotating rod is fixedly connected with a fan-shaped side plate. Through differential pressure sensor and relief pressure valve body cooperation, need not to pull down the relief pressure valve is whole, monitor the differential pressure at both ends around the relief pressure valve body through two differential pressure sensor, avoid removing the relief pressure valve and detect the time problem that can appear the pipeline leakage, reduce the step of monitoring, through bull stick, filter screen and raceway cooperation, take down the bolt on the bull stick, take down the filter screen and clean, clean the completion rethread bolted connection, the effect of avoiding impurity on raceway and filter screen a large amount of accumulations has been reached, the problem that the relief pressure valve filter screen in the past was piled up impurity easily, cause the raceway jam is solved.
Description
Technical Field
The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with an air tightness monitoring function.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by adjusting and automatically keeps the outlet pressure stable by depending on the energy of the medium. From the viewpoint of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, namely, by changing the throttling area, the flow speed and the kinetic energy of fluid are changed, and different pressure losses are caused, so that the aim of reducing pressure is achieved. And then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the adjustment of the control and adjustment system, so that the pressure behind the valve is kept constant within a certain error range, and the air tightness of the pressure reducing valve is required to be monitored during use.
The existing pressure reducing valve is connected with an external pipeline through a flange, the pressure reducing valve needs to be integrally detached for monitoring when the air tightness monitoring is carried out, the problem of pipeline leakage possibly occurs when the pressure reducing valve is detached for detection, the steps are complicated, the use is inconvenient, a filter screen of a filtering device arranged on the existing pressure reducing valve is of a fixed structure, the disassembly is difficult, the filter screen is inconvenient to detach for cleaning, certain impurities can be accumulated on the filter screen after long-term use, and the daily use is inconvenient.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a pressure reducing valve with an air tightness monitoring function.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a relief pressure valve with gas tightness monitoring function, includes the relief pressure valve body, relief pressure valve body one side intercommunication is connected with the raceway, install differential pressure sensor on the raceway, the inner wall rotation of raceway is connected with the bull stick, threaded connection filter screen on the bull stick, the fan-shaped sideboard of bull stick top fixed connection, the joint has adjusting screw on the fan-shaped sideboard, threaded connection handle on the adjusting screw.
Preferably, the number of the differential pressure sensors is two, and the two differential pressure sensors are consistent in size specification.
Preferably, the water delivery pipe is cylindrical, and the water delivery pipe is vertically arranged on the pressure reducing valve body.
Preferably, the diameter of the filter screen is matched with the diameter of the inner wall of the water delivery pipe, the number of the filter screens is two, and the size specifications of the two filter screens are consistent.
Preferably, the water delivery pipe is provided with an adjusting hole, and the rotating rod is installed on the adjusting hole in a penetrating way.
Preferably, the rotating rod is connected with the filter screen through bolts, and the rotating rod is vertically arranged on the inner wall of the water delivery pipe.
The utility model has the following beneficial effects:
1. according to the utility model, the differential pressure sensor is matched with the pressure reducing valve body, the pressure reducing valve body is not required to be detached when the air tightness is monitored, and the differential pressure at the front end and the rear end of the pressure reducing valve body is monitored through the two differential pressure sensors, so that the problem that the pipeline is likely to leak when the pressure reducing valve is detached and detected is avoided, the monitoring steps are reduced, and the pressure reducing valve is convenient to use.
2. According to the utility model, through the cooperation of the rotating rod, the filter screen and the water conveying pipe, after the use is finished, the bolts on the rotating rod are taken down, the filter screen is taken down for cleaning, and the cleaning is finished through the bolt connection, so that the effect of preventing impurities from accumulating on the water conveying pipe and the filter screen in a large quantity is achieved, the problem that the water conveying pipe is blocked due to the fact that the filter screen of the previous pressure reducing valve is easy to accumulate impurities is solved, the filter screen is convenient to detach and clean, and the filter screen is convenient to use in daily life.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a pressure reducing valve with an air tightness monitoring function according to the present utility model;
fig. 2 is a schematic top view of a pressure reducing valve with air tightness monitoring function according to the present utility model;
fig. 3 is a schematic diagram of a filter screen structure of a pressure reducing valve with an air tightness monitoring function according to the present utility model;
fig. 4 is a schematic left-view structure diagram of a pressure reducing valve with an air tightness monitoring function according to the present utility model.
In the figure: 1. a pressure reducing valve body; 2. a differential pressure sensor; 3. a water pipe; 4. a rotating rod; 5. a filter screen; 6. a fan-shaped side plate; 7. adjusting a screw; 8. a handle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a relief valve with gas tightness monitoring function, including relief valve body 1, relief valve body 1 one side intercommunication is connected with raceway 3, installs differential pressure sensor 2 on the raceway 3, and the inner wall rotation of raceway 3 is connected with bull stick 4, threaded connection filter screen 5 on the bull stick 4, and fan-shaped sideboard 6 is connected at bull stick 4 top fixed connection, and the joint has adjusting screw 7 on the fan-shaped sideboard 6, threaded connection handle 8 on the adjusting screw 7.
In the present utility model, the number of differential pressure sensors 2 is two, the two differential pressure sensors 2 are identical in size and specification, and the two differential pressure sensors 2 are respectively positioned on the left and right sides of the pressure reducing valve body 1.
Specifically, the differential pressure sensor 2 is a sensor for measuring a difference between two pressures, and is generally used for measuring a pressure difference across a device or component, and the differential pressure sensor 2 requires attention in use such as: the measured medium is not allowed to freeze, otherwise, the isolation diaphragm of the sensor element is damaged, so that the transmitter is damaged, and the transmitter is required to be subjected to temperature protection to prevent icing if necessary; no voltage higher than 36V is applied to the transmitter, resulting in damage to the transmitter; when measuring steam or other high-temperature media, the temperature of the steam or other high-temperature media should not exceed the limit temperature of the transmitter, and a heat dissipation device must be used above the limit temperature of the transmitter; when measuring steam or other high-temperature media, a radiating pipe is used to connect the transmitter and the pipeline together, the pressure on the pipeline is used to transmit the pressure to the transformer, and when the measured medium is steam, a proper amount of water is injected into the radiating pipe to prevent the superheated steam from directly contacting the transmitter to damage the sensor; for most of the industrial differential pressure transmitters, whether the differential pressure transmitters are of HART protocol and brown protocol, the following problems should be noted in installation and adjustment, because the diaphragm is damaged due to no hard object touching the diaphragm: loosening often occurs during installation, the transmitter is linked with the three-valve group, the bolts should be tightened diagonally, the bolts cannot be locked at one time generally, and a sealing ring should be added during the installation of the three-valve group; and (3) checking the precision of the transmitter: placing the fine tuning valve at the middle position, closing the stop valve and the check valve, setting the output pressure of the electric pressure inspection bench, adjusting basic errors, and recording data in time; calculating errors and return differences, giving a check conclusion and processing valid numbers correctly; setting a functional item of a calibrator, wherein the calibrator is cleared firstly, a pressure pipeline is connected well, meanwhile, connection of a positive electrode and a negative electrode is noted, a standard resistor is connected, and loop current is checked; the manual operator is correctly hung, the content of the transmitter is set according to the requirement, and zero adjustment is performed; for the operation of the three valve groups: firstly, a balance valve is opened, and a high-pressure valve is correctly opened; resetting and finishing the differential pressure transmitter equipment: and (3) disabling the three valve groups, powering off, removing the loop connection and related equipment, starting and closing the pressure control console, and opening the stop valve and the check valve.
In the utility model, the water delivery pipes 3 are cylindrical, the water delivery pipes 3 are vertically arranged on the pressure reducing valve body 1, the number of the water delivery pipes 3 is two, and the two water delivery pipes 3 are respectively positioned at the left side and the right side of the pressure reducing valve body 1.
Specifically, the pressure reducing valve reduces water pressure by means of local resistance of a flow channel in the valve to water flow, the range of the water pressure drop is automatically regulated by a film connected with a valve clack or the water pressure difference of an inlet and an outlet on two sides of a piston, the constant ratio pressure reducing principle is that the water pressure ratio of a floating piston in a valve body is utilized to control, the pressure reducing ratio of the inlet and the outlet is inversely proportional to the area ratio of the piston on the inlet and the outlet, and the pressure reducing valve works stably without vibration; the valve body is internally provided with no spring, so that the valve body is free from rust and metal fatigue failure; the sealing performance is good, and leakage is avoided, so that the dynamic pressure and the static pressure are reduced; the valve is characterized in that under the condition that the inlet pressure is continuously changed, the outlet pressure and the temperature value are kept in a certain range, and the water flow has great head loss through the pressure reducing valve, but the waste of water is reduced, the system flow distribution is reasonable, the system layout and the working condition are improved, so that the pressure reducing valve is energy-saving in general, a pilot piston type pressure reducing valve or a pilot bellows type pressure reducing valve is preferably used in the case that the medium is steam, and the pressure reducing valve is arranged on a horizontal pipeline for the convenience of operation, adjustment and maintenance.
In the utility model, the diameter of the filter screen 5 is matched with the diameter of the inner wall of the water delivery pipe 3, the number of the filter screens 5 is two, the size specifications of the two filter screens 5 are consistent, and the two filter screens 5 are respectively positioned in the two water delivery pipes 3.
In the utility model, an adjusting hole is formed in a water pipe 3, a rotating rod 4 is installed on the adjusting hole in a penetrating way, an adjusting groove is formed in a fan-shaped side plate 6, the diameter of an adjusting screw 7 is matched with the size of the adjusting groove, and the adjusting screw 7 is vertically arranged on the fan-shaped side plate 6.
In the utility model, the rotating rods 4 are connected with the filter screen 5 through bolts, the rotating rods 4 are vertically arranged on the inner wall of the water delivery pipe 3, the number of the rotating rods 4 is two, and the size specifications of the two rotating rods 4 are consistent.
The application method and the advantages of the utility model are as follows: when the pressure reducing valve with the air tightness monitoring function is used, the working process is as follows:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, when using this device, at first carry out external power supply to the consumer in this device, place appointed working position with this kind of device, through differential pressure sensor 2 and relief pressure valve body 1 cooperation, need not to dismantle relief pressure valve body 1 when carrying out the gas tightness monitoring, monitor the differential pressure at both ends around the relief pressure valve body 1 through two differential pressure sensors 2, avoid dismantling the problem that the pipeline leaked when detecting with relief pressure valve body 1, reduce the step of monitoring, be convenient for use, through bull stick 4, filter screen 5 and raceway 3 cooperation, after using, take down the bolt on the bull stick 4, filter screen 5 is clean down, clean the rethread bolted connection, the effect of avoiding impurity to pile up on raceway 3 and filter screen 5 in a large number of, the problem that the relief pressure valve filter screen 5 of past is piled up impurity easily, cause the raceway 3 to block up is convenient for dismantle filter screen 5 and clear up, daily use is convenient for.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The pressure reducing valve with the air tightness monitoring function comprises a pressure reducing valve body (1) and is characterized in that one side of the pressure reducing valve body (1) is communicated with a water conveying pipe (3), a differential pressure sensor (2) is installed on the water conveying pipe (3), a rotating rod (4) is rotatably connected to the inner wall of the water conveying pipe (3), a filter screen (5) is connected to the rotating rod (4) in a threaded mode, a fan-shaped side plate (6) is fixedly connected to the top of the rotating rod (4), an adjusting screw (7) is clamped on the fan-shaped side plate (6), and a handle (8) is connected to the adjusting screw (7) in a threaded mode.
2. The pressure reducing valve with airtightness monitoring function according to claim 1, wherein: the number of the differential pressure sensors (2) is two, and the size specifications of the two differential pressure sensors (2) are consistent.
3. The pressure reducing valve with airtightness monitoring function according to claim 1, wherein: the water delivery pipe (3) is cylindrical, and the water delivery pipe (3) is vertically arranged on the pressure reducing valve body (1).
4. The pressure reducing valve with airtightness monitoring function according to claim 1, wherein: the diameter of the filter screen (5) is matched with the diameter of the inner wall of the water delivery pipe (3), the number of the filter screens (5) is two, and the size specifications of the two filter screens (5) are consistent.
5. The pressure reducing valve with airtightness monitoring function according to claim 1, wherein: the water delivery pipe (3) is provided with an adjusting hole, and the rotating rod (4) is installed on the adjusting hole in a penetrating mode.
6. The pressure reducing valve with airtightness monitoring function according to claim 1, wherein: the rotary rod (4) is connected with the filter screen (5) through bolts, and the rotary rod (4) is vertically arranged on the inner wall of the water delivery pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321494638.6U CN220646965U (en) | 2023-06-12 | 2023-06-12 | Relief pressure valve with gas tightness monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321494638.6U CN220646965U (en) | 2023-06-12 | 2023-06-12 | Relief pressure valve with gas tightness monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220646965U true CN220646965U (en) | 2024-03-22 |
Family
ID=90286571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321494638.6U Active CN220646965U (en) | 2023-06-12 | 2023-06-12 | Relief pressure valve with gas tightness monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220646965U (en) |
-
2023
- 2023-06-12 CN CN202321494638.6U patent/CN220646965U/en active Active
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