CN217084048U - Isolation diaphragm gap control device of nuclear safety level capacitance type pressure transmitter - Google Patents
Isolation diaphragm gap control device of nuclear safety level capacitance type pressure transmitter Download PDFInfo
- Publication number
- CN217084048U CN217084048U CN202220648568.4U CN202220648568U CN217084048U CN 217084048 U CN217084048 U CN 217084048U CN 202220648568 U CN202220648568 U CN 202220648568U CN 217084048 U CN217084048 U CN 217084048U
- Authority
- CN
- China
- Prior art keywords
- isolation diaphragm
- suction block
- capacitive pressure
- cavity
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an isolation diaphragm clearance control device of a nuclear safety level capacitive pressure transmitter, which comprises a left suction block, a right suction block and a vacuum assembly, wherein a left cavity is arranged between a right connecting surface of the left suction block and a left isolation diaphragm of the capacitive pressure transmitter; the utility model discloses a capacitive pressure transmitter with production arranges in the left side and inhales between the piece and the right side inhales the piece to change the vacuum of left cavity and right cavity through vacuum assembly, thereby draw the operation in clearance to left side isolation diaphragm and right side isolation diaphragm.
Description
Technical Field
The utility model relates to a capacitanc pressure transmitter field, concretely relates to nuclear safety level capacitanc pressure transmitter's isolation diaphragm clearance control device.
Background
The isolation diaphragms are arranged on two sides of the capacitive pressure sensor, so that the capacitive sensing element is prevented from being in direct contact with the measured differential pressure fluid, the capacitive element has a good and stable working condition, and the adaptability of the transmitter to various measured differential pressure fluids (such as strong corrosion, high viscosity and the like) can be improved. It is noted that the isolating diaphragm can have an effect on the performance of the sensor. A correct design and a fine production of the isolation diaphragm are therefore necessary. It is one of the main contents of the design and production of the capacitive sensor.
In order to reduce the pressure loss of the isolation diaphragms, the isolation diaphragms on the two sides have the same flexibility, and when the flexibility of the isolation diaphragms on the two sides is much larger than that of the measurement diaphragm, the pressure loss of the isolation diaphragms becomes very small, and the measured differential pressure can be almost completely transmitted to the measurement diaphragm.
In summary, the isolation diaphragm for a capacitive pressure sensor must have a high compliance and a low pressure stiffness.
The gap control device specially used for the isolation diaphragm of the capacitive pressure sensor is lacked in the prior art, and the purposes of reducing rigidity and improving flexibility are achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the precision of capacitive pressure transmitter's at present stage isolation diaphragm is not enough, and aim at provides a nuclear safety level capacitive pressure transmitter's isolation diaphragm clearance control device, has solved the in-process of manufacturing capacitive pressure sensor, how to reduce the rigidity of isolation diaphragm and the problem of the flexibility that promotes isolation diaphragm.
The utility model discloses a following technical scheme realizes:
an isolation diaphragm gap control apparatus for a nuclear safety level capacitive pressure transmitter, comprising:
the left suction block is provided with a right connecting surface attached to the left side surface of the capacitive pressure sensor, a left cavity is arranged between the right connecting surface and the left side surface of the capacitive pressure sensor, a left isolation diaphragm of the capacitive pressure transmitter is positioned in the left cavity, and a left air hole communicated with the left cavity is formed in the left suction block;
the right suction block is provided with a left connecting surface attached to the right side surface of the capacitive pressure sensor, a right cavity is arranged between the left connecting surface and the right side surface of the capacitive pressure sensor, a right isolation diaphragm of the capacitive pressure transmitter is positioned in the right cavity, and a right air hole communicated with the right cavity is formed in the right suction block;
and the air port of the vacuum component is communicated with the left air hole and the right air hole through a pipeline, and the vacuum degree of the left cavity and the vacuum degree of the right cavity are changed.
Specifically, a left groove is formed in the right connecting surface, the diameter of the left groove is not smaller than that of the left isolation diaphragm, and the right connecting surface is in sealing fit with the left side surface of the capacitive pressure sensor;
the left connecting surface is provided with a right groove, the diameter of the right groove is not smaller than that of the right isolation diaphragm, and the left connecting surface is in sealing fit with the right side surface of the capacitive pressure sensor.
Specifically, the vacuum assembly includes:
a gas source;
a vacuum generator in communication with the gas source;
a vacuum chamber in communication with the vacuum generator;
the left cavity and the right cavity are communicated with the vacuum cavity through the pipeline, and a two-position three-way electromagnetic valve is arranged on the pipeline.
Further, the vacuum assembly further comprises:
a pull gap pressure relief valve disposed between the gas source and the vacuum generator and configured to adjust a pull gap pressure;
and the pull gap pressure gauge is used for displaying the pressure value of the pull gap pressure reducing valve.
Further, the control device further includes:
a fixed base;
the left fixing component is provided with a fixed end and a telescopic end, the fixed end of the left fixing component is fixedly connected with the fixed base, the telescopic end of the left fixing component is fixedly connected with the left suction block, and acting force towards the right suction block is applied to the left suction block;
the fixed subassembly in the right side, it has stiff end and flexible end, the stiff end of the fixed subassembly in the right side with unable adjustment base fixed connection, the flexible end of the fixed subassembly in the right side with the piece fixed connection is inhaled on the right side, and is right the piece is inhaled on the right side and is applyed the orientation the effort of piece is inhaled on the left side.
As one embodiment, the left fixation assembly includes:
the cylinder body of the telescopic cylinder is horizontally arranged and fixedly connected with the fixed base, and the rod body of the telescopic cylinder is fixedly connected with the left suction block and drives the left suction block to move towards the right suction block;
the air port of the telescopic cylinder is communicated with the air source, and a two-position three-way manual valve is arranged on an air path between the air source and the telescopic cylinder.
Further, the left fixation assembly further comprises:
the air cylinder pressure reducing valve is arranged between the air source and the two-position three-way manual valve and is used for adjusting air cylinder pressure;
and the cylinder pressure gauge is used for displaying the pressure value of the cylinder pressure reducing valve.
As another embodiment, the right fixing component is a push-pull type quick clamp, the push-pull type quick clamp is fixedly arranged on the fixing base, a push rod of the push-pull type quick clamp is horizontally arranged and is fixedly connected with the right suction block, and the right suction block is driven to move towards the left suction block.
Further, the control device further includes:
the power supply is electrically connected with the two-position three-way electromagnetic valve, the air source and the vacuum generator;
and the time relay is used for controlling the on-off of the two-position three-way electromagnetic valve.
Preferably, a toggle switch is arranged on a circuit between the power supply and the air source;
the air source is communicated with the vacuum generator and the telescopic cylinder through a three-way joint.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a capacitive pressure transmitter with production arranges in the left side and inhales between the piece and the right side inhales the piece to vacuum through vacuum assembly changes the vacuum of left cavity and right cavity, thereby draw the operation in clearance to left side isolation diaphragm and right isolation diaphragm, can improve the flexibility of isolation diaphragm after the ripple shaping, reduce pressure rigidity, thereby reduce capacitive sensor's pressure loss and temperature influence, eliminate the stress that produces after the isolation diaphragm welding, improve technical performance such as capacitive sensor's sensitivity, nonlinearity and dynamic response.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a front view of an isolation diaphragm gap control device for a nuclear safety level capacitive pressure transmitter according to the present invention.
Fig. 2 is a rear view of an isolation diaphragm gap control device for a nuclear safety level capacitive pressure transmitter according to the present invention.
Reference numerals: 1-cylinder pressure reducing valve, 2-cylinder pressure gauge, 3-telescopic cylinder, 4-left suction block, 5-left isolation diaphragm, 6-capacitance pressure sensor, 7-right isolation diaphragm, 8-right suction block, 9-push-pull quick clamp, 10-pipeline, 11-time relay, 12-pull gap pressure gauge, 13-toggle switch, 14-pull gap pressure reducing valve, 15-vacuum pressure gauge, 16-two-position three-way manual valve, 17-three-way joint, 18-two-position three-way electromagnetic valve, 19-air source, 20-power supply, 21-vacuum cavity and 22-vacuum generator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention.
It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.
In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a controlling means is applicable to capacitanc pressure sensor 6 to carry out simple explanation to capacitanc pressure sensor 6.
The capacitance type pressure sensor 6 is used as a pressure transmitter detection component (core component), a two-chamber structure is adopted, a measurement diaphragm in the middle of the body is also used as a movable capacitance polar plate, and a small gap is formed between the measurement diaphragm and fixed polar plates on two sides, so that a variable gap type differential capacitance sensing element is formed.
The fixed polar plate is formed by evaporating a metal film on the inner spherical surface of the glass insulator. Two identical isolating membranes are welded on two sides of the body, and the two identical isolating membranes and the middle measuring membrane form two symmetrical sealed liquid filling chambers which are filled with liquid (silicone oil or fluorine oil), so the structure is called as a two-chamber structure.
The differential pressure of the measured fluid acting on the two side isolation diaphragms is transmitted to the middle measurement diaphragm through the filled liquid level, so that the diaphragm generates tiny deflection. Thus, the gap of the capacitive sensor element is changed, so that the two capacitances C1 and C2 are differentially changed, and the differential capacitance change is converted into 4-20 mA DC output through a measuring circuit.
In order to reduce the pressure loss of the isolation diaphragms, the isolation diaphragms on the two sides have the same flexibility, and when the flexibility of the isolation diaphragms on the two sides is much larger than that of the measurement diaphragm, the pressure loss of the isolation diaphragms becomes very small, and the measured differential pressure can be almost transmitted to the measurement diaphragm.
The isolation diaphragms arranged on the two sides of the capacitive pressure sensor 6 can increase the temperature error of the transmitter, but the isolation diaphragms are reasonably designed to generate certain temperature compensation, namely the temperature error is reduced by adopting the isolation diaphragms with smaller diameters and great flexibility.
The corrugated diaphragm made of the same material, thickness and working radius has lower pressure rigidity than the flat diaphragm, so that the isolation diaphragm is the corrugated diaphragm, the pressure rigidity is lower, and the technical performances of sensitivity, nonlinearity, dynamic response and the like of the transmitter can be improved.
Therefore, during production and manufacturing, the isolation diaphragm of the left and right chambers in the capacitive pressure sensor 6 needs to be corrugated, and then the isolation diaphragm is controlled by the following control device, so that the purposes of increasing the flexibility of the isolation diaphragm and reducing the pressure rigidity are finally achieved.
For convenience of understanding and description, the isolation diaphragm of the capacitive pressure transmitter is set to comprise a left isolation diaphragm 5 and a right isolation diaphragm 7, the left isolation diaphragm 5 is fixedly arranged on the left side surface of the capacitive pressure sensor 6, and the right isolation diaphragm 7 is fixedly arranged on the right side surface of the capacitive pressure sensor 6.
Moreover, the left and right sides of the present invention are illustrated in the orientation shown in fig. 1, and can be exchanged according to the specific situation.
Example one
An isolation diaphragm gap control device of a nuclear safety level capacitance type pressure transmitter comprises a left suction block 4, a right suction block 8 and a vacuum assembly.
As shown in fig. 1, for convenience of description, the left suction block 4 is configured to have a right connection surface attached to the left side surface of the capacitive pressure sensor 6, and the right suction block 8 is configured to have a left connection surface attached to the right side surface of the capacitive pressure sensor 6.
A left cavity is arranged between the right connecting surface and the left side surface of the capacitive pressure sensor 6, a left isolation diaphragm 5 of the capacitive pressure transmitter is positioned in the left cavity, and a left air hole communicated with the left cavity is arranged in the left suction block 4; and the joint of the right connecting surface and the left side surface is in a sealing state.
A right cavity is arranged between the left connecting surface and the right side surface of the capacitive pressure sensor 6, a right isolation diaphragm 7 of the capacitive pressure transmitter is positioned in the right cavity, a right air hole communicated with the right cavity is formed in the right suction block 8, and the connecting part of the left connecting surface and the right side surface is in a sealing state.
The air port of the vacuum component is communicated with the left air hole and the right air hole through a pipeline 10, and the vacuum degree of the left cavity and the vacuum degree of the right cavity are changed.
The vacuum degree of the left cavity is changed through the vacuum assembly, so that the left isolation diaphragm 5 deforms leftwards or rightwards under the action of air pressure, and the gap pulling operation of the left isolation diaphragm 5 is realized.
The vacuum degree of the right cavity is changed through the vacuum assembly, so that the right isolation diaphragm 7 deforms leftwards or rightwards under the action of air pressure, and the gap pulling operation of the right isolation diaphragm 7 is realized.
And therefore, the left air hole and the right air hole are communicated with the air port of the vacuum assembly, and the vacuum degree of the left cavity and the vacuum degree of the right cavity can be guaranteed to be the same.
The structure of the left and right cavities will be briefly explained below.
The left cavity is formed in the following manner: and a left groove is formed in the right connecting surface, the diameter of the left groove is not smaller than that of the left isolation diaphragm 5, and then the right connecting surface is in sealing fit with the left side surface of the capacitive pressure sensor 6 to form a sealed left cavity.
The right cavity is formed in the following manner: and a right groove is formed in the left connecting surface, the diameter of the right groove is not smaller than that of the right isolation diaphragm 7, and the left connecting surface is in sealing fit with the right side surface of the capacitive pressure sensor 6 to form a sealed right cavity.
Example two
This embodiment illustrates the structure of a vacuum module, which includes: the vacuum pump comprises an air source 19, a vacuum generator 22, a vacuum cavity 21, a two-position three-way electromagnetic valve 18, a pull gap pressure reducing valve 14 and a pull gap pressure gauge 12.
The vacuum generator 22 is communicated with the air source 19, the vacuum cavity 21 is communicated with the vacuum generator 22, the left cavity and the right cavity are communicated with the vacuum cavity 21 through the pipeline 10, and the pipeline 10 is provided with a two-position three-way electromagnetic valve 18.
The pull gap pressure reducing valve 14 is arranged between the air source 19 and the vacuum generator 22 and is used for adjusting the pull gap pressure;
the pressure gauge 12 is used to display the pressure value of the pressure relief valve 14.
Based on this embodiment, in order to realize the structure of the first embodiment, there are two vacuum pipes 10 connected.
Right side line: air supply 19 → pressure relief valve 14 → vacuum generator 22 → vacuum chamber 21 → two-position three-way solenoid valve 18 → vacuum pressure gauge 15 → right suction block 8 → right isolation diaphragm 7, which is the line 10 for performing the gap-pulling operation on the right isolation diaphragm 7.
The vacuum generator 22 is a vacuum component which utilizes the positive pressure air source 19 to generate negative pressure and provides required vacuum degree for the isolation diaphragm pull gap; a two-position three-way solenoid valve 18 is used to switch vacuum operation into the right suction block 8.
Left side line: air supply 19 → pressure relief valve 14 → vacuum generator 22 → vacuum chamber 21 → two-position three-way solenoid valve 18 → vacuum pressure gauge 15 → left suction block 4 → left isolation diaphragm 5, which is the line 10 for the gap-pulling operation of the right isolation diaphragm 7.
It can be seen that the lines before entering the left suction block 4 and the right suction block 8 are the same.
EXAMPLE III
In order to realize the fixation of the left suction block 4 and the right suction block 8, the present embodiment provides a fixation device, which includes a fixation base, a left fixation assembly, and a right fixation assembly.
Unable adjustment base, it can be the box, then all places a plurality of components and parts in the vacuum module in unable adjustment base, realizes fixedly.
The left fixing component is provided with a fixed end and a telescopic end, the fixed end of the left fixing component is fixedly connected with the fixed base, the telescopic end of the left fixing component is fixedly connected with the left suction block 4, and acting force towards the right suction block 8 is applied to the left suction block 4;
the right fixing component is provided with a fixed end and a telescopic end, the fixed end of the right fixing component is fixedly connected with the fixed base, the telescopic end of the right fixing component is fixedly connected with the right suction block 8, and acting force towards the left suction block 4 is applied to the right suction block 8.
Inhale piece 4 with a left side through left fixed subassembly and promote right, the fixed subassembly of right inhales piece 8 with the right side and promotes left to the realization is with the fixed purpose of capacitive pressure transmitter centre gripping.
One specific embodiment of the left fixed assembly is provided, the left fixed assembly comprises a telescopic cylinder 3, a two-position three-way manual valve 16, a cylinder pressure reducing valve 1 and a cylinder pressure gauge 2.
The cylinder body of the telescopic cylinder 3 is horizontally arranged and fixedly connected with the fixed base, and the rod body of the telescopic cylinder 3 is fixedly connected with the left suction block 4 and drives the left suction block 4 to move towards the right suction block 8;
the air port of the telescopic cylinder 3 is communicated with an air source 19, a two-position three-way manual valve 16 is arranged on an air path between the air source 19 and the telescopic cylinder 3, the cylinder pressure reducing valve 1 is arranged between the air source 19 and the two-position three-way manual valve 16, the cylinder pressure reducing valve 1 is used for adjusting the pressure of the cylinder, and the cylinder pressure gauge 2 is used for displaying the pressure value of the cylinder pressure reducing valve 1.
The telescopic cylinder 3 directly supplies air through an air source 19 in the vacuum assembly, so that the air path connection mode of the telescopic cylinder 3 is as follows: the air source 19 → the cylinder pressure reducing valve 1 → the two-position three-way manual valve 16 → the telescopic cylinder 3 → the left suction block 4, wherein the two-position three-way manual valve 16 is used for controlling the opening and closing of the telescopic cylinder 3; the telescopic cylinder 3 is connected with the left suction block 4, and the left suction block 4 is controlled to compress or loosen the capacitive pressure sensor 6 by the left and right movement of the rod body of the telescopic cylinder 3.
Because the air supply 19 needs to supply two air supplies at the same time, the air supply 19 is set to be communicated with the vacuum generator 22 and the telescopic cylinder 3 through the three-way joint 17.
The right fixing component is a push-pull type quick clamp 9, the push-pull type quick clamp 9 is fixedly arranged on a fixing base, a push rod of the push-pull type quick clamp 9 is horizontally arranged and is fixedly connected with the right suction block 8, and the right suction block 8 is driven to move towards the left suction block 4.
The push-pull type quick clamp 9 is provided with a handle, and the push rod can be moved left and right by directly stirring the handle, so that the right suction block 8 is controlled to compress or loosen the capacitance type pressure sensor 6.
In addition, in practical use, the left fixing component can also adopt a push-pull type quick clamp 9, and the right fixing component can also adopt a telescopic cylinder 3.
Example four
In order to achieve semi-automatic control, the control device in this embodiment further includes a power supply 20 and a time relay 11.
The power supply 20 is electrically connected with the two-position three-way electromagnetic valve 18, the air source 19 and the vacuum generator 22, so that the power supply to the whole control device is realized.
The time relay 11 has a timing function, time can be adjusted manually, and the time relay 11 is used for controlling the on-off of the two-position three-way electromagnetic valve 18.
A toggle switch 13 is arranged on the circuit between the power supply 20 and the air supply 19 and is used for controlling the on-off of the air supply 19.
Based on embodiment one, two, three, the utility model discloses a concrete operation flow is:
checking whether the gas source 19 and the power source 20 are both connected;
setting a time relay 11 to the required time;
the required vacuum degree is set by the vacuum generator 22;
the toggle switch 13 is toggled to the activated position to energize the air supply 19.
Installing a capacitive pressure sensor 6 between the left suction block 4 and the right suction block 8, pushing a handle of a push-pull type quick clamp 9 to fix the capacitive pressure sensor 6, opening a two-position three-way manual valve for controlling the cylinder of the telescopic cylinder 3, and tightly propping against the capacitive pressure sensor 6;
the time relay 11 is pressed down to start working, the two-position three-way electromagnetic valve 18 is opened, and the left isolation diaphragm 5 and the right isolation diaphragm 7 in the left cavity and the right cavity are subjected to gap pulling operation.
After the time of the time relay 11 is up and the green light is on, the two-position three-way manual valve 16 is shifted to be closed, the push-pull type quick clamp 9 is pulled open, the capacitive pressure sensor 6 is taken down, and the gap is pulled;
after the gap is pulled, the power supply 20 is turned off and the toggle switch 13 is toggled to the off position.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications to the above described embodiments will be apparent to those skilled in the art and are within the scope of the invention.
Claims (10)
1. An isolation diaphragm gap control device for a nuclear safety level capacitive pressure transmitter, comprising:
the left suction block is provided with a right connecting surface attached to the left side surface of the capacitive pressure sensor, a left cavity is arranged between the right connecting surface and the left side surface of the capacitive pressure sensor, a left isolation diaphragm of the capacitive pressure transmitter is positioned in the left cavity, and a left air hole communicated with the left cavity is formed in the left suction block;
the right suction block is provided with a left connecting surface attached to the right side surface of the capacitive pressure sensor, a right cavity is arranged between the left connecting surface and the right side surface of the capacitive pressure sensor, a right isolation diaphragm of the capacitive pressure transmitter is positioned in the right cavity, and a right air hole communicated with the right cavity is formed in the right suction block;
and the air port of the vacuum component is communicated with the left air hole and the right air hole through a pipeline, and the vacuum degree of the left cavity and the vacuum degree of the right cavity are changed.
2. The isolation diaphragm gap control device of the nuclear safety level capacitive pressure transmitter according to claim 1, wherein a left groove is formed in the right connecting surface, the diameter of the left groove is not smaller than that of the left isolation diaphragm, and the right connecting surface is in sealing fit with the left side surface of the capacitive pressure sensor;
the left connecting surface is provided with a right groove, the diameter of the right groove is not smaller than that of the right isolation diaphragm, and the left connecting surface is in sealing fit with the right side surface of the capacitive pressure sensor.
3. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 2, wherein said vacuum assembly comprises:
a gas source;
a vacuum generator in communication with the gas source;
a vacuum chamber in communication with the vacuum generator;
the left cavity and the right cavity are communicated with the vacuum cavity through the pipeline, and a two-position three-way electromagnetic valve is arranged on the pipeline.
4. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 3, wherein said vacuum assembly further comprises:
a pull gap pressure relief valve disposed between the gas source and the vacuum generator and configured to adjust a pull gap pressure;
and the pull gap pressure gauge is used for displaying the pressure value of the pull gap pressure reducing valve.
5. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 3, further comprising:
a fixed base;
the left fixing component is provided with a fixed end and a telescopic end, the fixed end of the left fixing component is fixedly connected with the fixed base, the telescopic end of the left fixing component is fixedly connected with the left suction block, and acting force towards the right suction block is applied to the left suction block;
the fixed subassembly in the right side, it has stiff end and flexible end, the stiff end of the fixed subassembly in the right side with unable adjustment base fixed connection, the flexible end of the fixed subassembly in the right side with the piece fixed connection is inhaled on the right side, and is right the piece is inhaled on the right side and is applyed the orientation the effort of piece is inhaled on the left side.
6. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 5, wherein said left stationary component comprises:
the cylinder body of the telescopic cylinder is horizontally arranged and fixedly connected with the fixed base, and the rod body of the telescopic cylinder is fixedly connected with the left suction block and drives the left suction block to move towards the right suction block;
the air port of the telescopic cylinder is communicated with the air source, and a two-position three-way manual valve is arranged on an air path between the air source and the telescopic cylinder.
7. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 6, wherein said left stationary assembly further comprises:
the air cylinder pressure reducing valve is arranged between the air source and the two-position three-way manual valve and is used for adjusting air cylinder pressure;
and the cylinder pressure gauge is used for displaying the pressure value of the cylinder pressure reducing valve.
8. The isolation diaphragm gap control device of the nuclear safety level capacitive pressure transmitter according to claim 6, wherein the right fixing component is a push-pull type quick clamp, the push-pull type quick clamp is fixedly arranged on the fixing base, a push rod of the push-pull type quick clamp is horizontally arranged and is fixedly connected with the right suction block, and the right suction block is driven to move towards the left suction block.
9. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 6, further comprising:
the power supply is electrically connected with the two-position three-way electromagnetic valve, the air source and the vacuum generator;
and the time relay is used for controlling the on-off of the two-position three-way electromagnetic valve.
10. The isolation diaphragm gap control device of a nuclear safety level capacitive pressure transmitter of claim 9, wherein a toggle switch is disposed on a circuit between said power source and said gas source;
the air source is communicated with the vacuum generator and the telescopic cylinder through a three-way joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220648568.4U CN217084048U (en) | 2022-03-24 | 2022-03-24 | Isolation diaphragm gap control device of nuclear safety level capacitance type pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220648568.4U CN217084048U (en) | 2022-03-24 | 2022-03-24 | Isolation diaphragm gap control device of nuclear safety level capacitance type pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217084048U true CN217084048U (en) | 2022-07-29 |
Family
ID=82550167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220648568.4U Active CN217084048U (en) | 2022-03-24 | 2022-03-24 | Isolation diaphragm gap control device of nuclear safety level capacitance type pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217084048U (en) |
-
2022
- 2022-03-24 CN CN202220648568.4U patent/CN217084048U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0110992A1 (en) | A liquid to liquid differential capacitive pressure transducer and method for manufacturing same. | |
| WO2006130425A8 (en) | Line pressure measurement using differential pressure sensor | |
| CN217084048U (en) | Isolation diaphragm gap control device of nuclear safety level capacitance type pressure transmitter | |
| EP3965133A1 (en) | High anti-vibration gas density relay | |
| CN108801616B (en) | Performance testing device of suction disc with controllable adsorption force | |
| CN114061862B (en) | Air leakage amount detection device and method | |
| CN202329921U (en) | Remote pressure and differential pressure transmitter with temperature compensation pistons | |
| CN102353497B (en) | Single diaphragm differential pressure gauge | |
| CN206039310U (en) | Miniature intelligent gas pressure controller | |
| JP2005077310A (en) | Gas measuring device and self-diagnosis method therefor | |
| CN218066930U (en) | Pump body gas tightness detection device | |
| CN220490287U (en) | Pressure sensor test fixture | |
| CN105388570A (en) | Air-tight fiber wall-penetrating socket | |
| CN212461337U (en) | Oil injection system of differential pressure transmitter | |
| CN205937266U (en) | Fluid pressure control structure | |
| CN220136545U (en) | Differential pressure sensor combined sealing structure | |
| CN219455346U (en) | Capacitive pressure sensor | |
| CN221144706U (en) | Vacuum pump capable of adapting to multiple caliber interfaces | |
| CN212409805U (en) | Heat value industrial and commercial NB-IoT gas meter | |
| CN216559575U (en) | Electronic water pump air simulation online detection device | |
| CN213364107U (en) | Pressure transmitter and remote pressure measuring device | |
| CN212275113U (en) | Refrigerant pressure gauge | |
| CN212028722U (en) | Pilot-operated proportional flow valve with flow feedback function | |
| CN215218290U (en) | Surface load loading device | |
| CN214667351U (en) | Mechanism for controlling air inflow by pressure gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: No.328, Section 1, Changshun Avenue, Shuangliu District, Chengdu, Sichuan 610000 Patentee after: NUCLEAR POWER INSTITUTE OF CHINA Patentee after: SHANGHAI GUANGHUA INSTRUMENT Co.,Ltd. Address before: No.328, Section 1, Changshun Avenue, Shuangliu District, Chengdu, Sichuan 610000 Patentee before: NUCLEAR POWER INSTITUTE OF CHINA |
|
| TR01 | Transfer of patent right |