Pressure transmitter
By designing the pressure transfer assembly and support assembly in the pressure transmitter, the problem of rust by the existing pressure transmitter is solved, the service life and impact resistance of the device are improved, and practicality and maintenance convenience are enhanced.
Patent Information
- Application Number
- CN202420789411.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-16
AI Technical Summary
During use, existing pressure transmitters are prone to corrosion and damage caused by corrosive gases or liquids, which reduces the service life and practicality of the device.
A pressure transmitter including a pressure transfer assembly and a support assembly is designed. The pressure-driven assembly reduces the chance of damage to important components through structures such as the pressure-driven piston and lubrication sealing ring; the support assembly forms a pipe clamp structure by clamping the arc plate and positioning bracket, which improves impact resistance.
It effectively reduces the chance of damage to the device during operation, improves service life and impact resistance, and enhances the practicality and maintenance convenience of the device.
Smart Images
Figure CN222825186U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydropower installation, in particular to a pressure transmitter. Background Art
[0002] A pressure transmitter is a device that converts pressure into pneumatic or electric signals for control and remote transmission. It is widely used in the field of hydropower installation technology. The pressure transmitter can convert the physical pressure parameters of gas, liquid, etc. sensed by the pressure measuring element sensor into standard electrical signals to supply secondary instruments such as indicator alarms, recorders, regulators, etc. for measurement, indication and process regulation.
[0003] When the pressure transmitter in the prior art is in use, the gas or liquid in the pipeline is measured through the pressure measuring component inside the device. However, since some gases or liquids are corrosive, the device is easily corroded and damaged during operation, which reduces the service life of the device and thus affects the practicality of the device.
[0004] Based on this, the utility model designs a pressure transmitter to solve the above problems. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] In view of the deficiencies in the prior art, the utility model provides a pressure transmitter, which solves the problems raised in the above background technology.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure transmitter, comprising a transmitter body, a detection end of the transmitter body is screwed and connected with a blocking valve, an input end of the blocking valve is connected with a pressure conversion assembly, the pressure conversion assembly comprises a pressure conversion tube, an inner wall of the pressure conversion tube is slidably plugged with a pressure conversion piston, a soft sealing groove and two groups of hard sealing grooves are provided on the outer surface of the pressure conversion piston, the inner wall of each group of the hard sealing grooves can be rotatably covered with a lubricating sealing ring, the inner wall of the soft sealing groove can be rotatably covered with a flexible sealing ring, a pressure conversion liquid is arranged inside the pressure conversion tube, an input end of the pressure conversion tube is screwed and connected with a switch valve, a support assembly is fixedly installed on the back of the transmitter body by screws, the support assembly comprises two groups of clamping arc plates, the two groups of the clamping arc plates are fixedly installed by clamping bolts and clamping nuts, a rear positioning bracket is provided on the top of the lower clamping arc plate, and a front positioning bracket is provided on the top of the upper clamping arc plate, and the inner wall of the front positioning bracket is slidably covered with the outer surface of the pressure conversion tube.
[0009] Preferably, an information sign is provided on the front side of the front positioning bracket, and an information logo is provided on the front side of the information sign.
[0010] Preferably, conformal reinforcing ribs are provided on both the left and right sides of the outer side surface of each group of the clamping arc plates, and the thickness of each group of the conformal reinforcing ribs is equal to the wall thickness of the clamping arc plates.
[0011] Preferably, the inner wall of each group of the clamping arc plates is provided with a buffer pad, and the inner wall of each group of the buffer pads is provided with a plurality of groups of anti-slip grooves.
[0012] Preferably, the inner wall of the pressure-converting tube is provided with two groups of limiting rings, and the inner diameter of each group of limiting rings is larger than the inner diameter of the connecting end of the transmitting body.
[0013] Preferably, a locking nut is threadedly mounted on the outer surface of the connecting end of the transmitter body, and the bottom end of the locking nut is tightly pressed against the top end of the blocking valve.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides a pressure transmitter with the following beneficial effects:
[0016] 1. The pressure transmitter uses a pressure transfer assembly to allow the gas or liquid in the pipeline to enter the pressure transfer tube through the switch valve under pressure. The gas or liquid in the pressure transfer tube drives the pressure transfer piston to move along the inside thereof. The pressure transfer piston drives the pressure transfer liquid in the pressure transfer tube to enter the transmitter body through the blocking valve. In this process, two sets of lubricating sealing rings and flexible sealing rings provide sealing between the pressure transfer piston and the pressure transfer tube. The transmitter body determines the pressure of the gas or liquid in the pipeline by detecting the pressure transfer liquid, thereby reducing the probability of damage to important components in the device during operation and increasing the service life of the device.
[0017] 2. The pressure transmitter uses a support assembly to allow two sets of clamping arc plates to form a pipe clamp structure on the pipeline surface. The impact force on the transmitter body or the pressure transfer assembly is transmitted to the pipe clamp structure through the rear positioning bracket or the front positioning bracket, and the impact on the pipe clamp structure is transmitted to the pipeline, thereby reducing the probability of failure at the connection between the device and the pipeline or the connection itself, effectively improving the impact resistance of the device, thereby enhancing the practicability of the device.
[0018] 3. The pressure transmitter disconnects the pipeline from the device through the switch valve, and then disconnects the pressure transfer component from the transmitter body through the blocking valve. The pressure transfer liquid in the transmitter body is sealed inside it, and then the pressure transfer component is replaced on the blocking valve. After the pressure transfer component is replaced, it and the transmitter body are fixed to the switch valve, and then the subsequent detection work is carried out by opening the blocking valve and the switch valve, which reduces the impact of device maintenance on the pipeline, improves the convenience of the device maintenance process, and thus enhances the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 It is a right side view of the structure of the utility model;
[0021] Figure 3 It is a schematic diagram of the three-dimensional structure explosion of the structural pressure transfer assembly of the utility model.
[0022] In the figure: 1. Transmitter body; 2. Transfer pressure assembly; 3. Blocking valve; 4. Transfer pressure tube; 5. Transfer pressure piston; 6. Lubricating sealing ring; 7. Flexible sealing ring; 8. Switch valve; 9. Support assembly; 10. Clamping arc plate; 11. Rear positioning bracket; 12. Front positioning bracket; 13. Information label; 14. Conformal reinforcement rib; 15. Buffer pad; 16. Limiting ring; 17. Anti-loosening nut. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-3The utility model provides a technical solution: a pressure transmitter, including a transmitter body 1, a detection end of the transmitter body 1 is screwed and connected with a blocking valve 3, and the input end of the blocking valve 3 is connected with a pressure conversion component 2. Through the pressure conversion component 2, the gas or liquid in the pipeline enters the pressure conversion tube 4 through the switch valve 8 under the action of pressure, and the gas or liquid in the pressure conversion tube 4 drives the pressure conversion piston 5 to move along the inside thereof, and the pressure conversion piston 5 drives the pressure conversion liquid in the pressure conversion tube 4 to enter the transmitter body 1 through the blocking valve 3. In this process, two sets of lubricating sealing rings 6 and flexible sealing rings 7 provide sealing between the pressure conversion piston 5 and the pressure conversion tube 4. The transmitter body 1 is sealed by the pressure conversion piston 5. The pressure of the gas or liquid in the pipeline is detected and determined by the liquid, which reduces the probability of damage to important components in the device during operation and increases the service life of the device. The pressure transfer component 2 includes a pressure transfer tube 4, the inner wall of the pressure transfer tube 4 is slidably plugged with a pressure transfer piston 5, the outer surface of the pressure transfer piston 5 is provided with a soft sealing groove and two groups of hard sealing grooves, the inner wall of each group of hard sealing grooves can be rotatably covered with a lubricating sealing ring 6, the inner wall of the soft sealing groove can be rotatably covered with a flexible sealing ring 7, the interior of the pressure transfer tube 4 is provided with a pressure transfer liquid, the input end of the pressure transfer tube 4 is screwed and connected with a switch valve 8, the switch valve 8 is used to disconnect the pipeline from the device, and then the blocking valve is used to disconnect the pipeline from the device. 3 disconnects the pressure transfer component 2 from the transmitter body 1, and the pressure transfer liquid in the transmitter body 1 is sealed inside it, and then replaces the pressure transfer component 2 with the blocking valve 3. After the pressure transfer component 2 is replaced, it and the transmitter body 1 are fixed to the switch valve 8, and then the subsequent detection operation is carried out by opening the blocking valve 3 and the switch valve 8, which reduces the impact of device maintenance on the pipeline, improves the convenience of the device maintenance process, and thus enhances the applicability of the device. The back of the transmitter body 1 is fixed with a support component 9 by screws. Through the support component 9, two sets of clamping arc plates 10 form a pipe clamp structure on the surface of the pipeline, and the transmitter body 1 or the pressure transfer component 2 is protected by The impact force is transmitted to the pipe clamp structure through the rear positioning bracket 11 or the front positioning bracket 12 respectively, and the impact on the pipe clamp structure is transmitted to the pipeline, thereby reducing the probability of failure of the connection between the device and the pipeline or the connection itself, effectively improving the impact resistance of the device, thereby enhancing the practicability of the device, the support assembly 9 includes two groups of clamping arc plates 10, the two groups of clamping arc plates 10 are fixed and installed by clamping bolts and clamping nuts, the top of the lower clamping arc plate 10 is provided with a rear positioning bracket 11, the top of the upper clamping arc plate 10 is provided with a front positioning bracket 12, the inner wall of the front positioning bracket 12 is slidably fitted on the outer surface of the transfer tube 4.
[0025] In the utility model, in order to improve the convenience of determining various information of the device, an information signboard 13 is provided on the front of the front positioning bracket 12, and an information mark is provided on the front of the information signboard 13. Through the information mark provided on the front of the information signboard 13, maintenance personnel can quickly determine various information of the device, thereby improving the convenience of determining various information of the device.
[0026] In the utility model, in order to reduce the probability of deformation failure of the clamping arc plate 10, conformal reinforcing ribs 14 for improving the structural strength are provided on the left and right sides of the outer side surface of each group of clamping arc plates 10. The thickness of each group of conformal reinforcing ribs 14 is equal to the wall thickness of the clamping arc plate 10, thereby reducing the probability of deformation failure of the clamping arc plate 10.
[0027] In the utility model, in order to reduce the probability of damage to the pipeline surface during the operation of the device, a buffer pad 15 for reducing the hardness of the contact surface between the device and the pipeline is provided on the inner wall of each set of clamping arc plates 10, and a plurality of anti-slip grooves are provided on the inner wall of each set of buffer pads 15, thereby reducing the probability of damage to the pipeline surface during the operation of the device.
[0028] In the utility model, in order to reduce the probability of the transfer pressure piston 5 escaping from the transfer pressure tube 4, two groups of limit rings 16 for limiting the stroke of the transfer pressure piston 5 are arranged on the inner wall of the transfer pressure tube 4. The inner diameter of each group of limit rings 16 is larger than the inner diameter of the connecting end of the transmitter body 1, thereby reducing the probability of the transfer pressure piston 5 escaping from the transfer pressure tube 4.
[0029] In the utility model, in order to improve the stability of the device during operation, a lock nut 17 for transmitting a pre-tightening force to the blocking valve 3 is threadedly installed on the outer surface of the connecting end of the transmitter body 1, thereby reducing the probability of uncontrollable rotation of the blocking valve 3. The bottom end of the lock nut 17 is tightly pressed against the top end of the blocking valve 3, thereby improving the stability of the device during operation.
[0030] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.
[0031] When in use, first fix the device to the set position. During the installation of the device, the clamping bolts and the clamping nuts drive the two sets of clamping arc plates 10 to move toward each other. The two sets of clamping arc plates 10 clamp the pipeline during movement. After the installation of the device is completed, the pressure transfer component 2 is connected to the pipeline through the switch valve 8, and then the pressure transfer component 2 is connected to the transmitter body 1 through the blocking valve 3. The gas or liquid in the pipeline enters the pressure transfer tube 4 through the switch valve 8 under the action of pressure. The gas or liquid in the pressure transfer tube 4 drives the pressure transfer piston 5 to move along its interior. The pressure transfer piston 5 drives the pressure transfer liquid in the pressure transfer tube 4 to enter the transmitter body 1 through the blocking valve 3. In this process, the two sets of lubricating sealing rings 6 provide sealing for the pressure transfer piston 5 and the pressure transfer tube 4 while providing support for them, and the flexible sealing ring 7 provides sealing between the pressure transfer piston 5 and the pressure transfer tube 4 through its own elastic deformation. The transmitter body 1 determines the pipe by detecting the pressure transfer liquid The pressure of the gas or liquid in the pipeline, when the device is subjected to external impact, the two sets of clamping arc plates 10 form a pipe clamp structure on the pipeline surface, and the impact force on the transmitter body 1 or the transfer pressure assembly 2 is transmitted to the pipe clamp structure through the rear positioning bracket 11 or the front positioning bracket 12 respectively, and the impact on the pipe clamp structure is transmitted to the pipeline, thereby reducing the probability of failure of the connection between the device and the pipeline or the connection itself. When the transfer pressure assembly 2 fails during long-term operation, the pipeline is first disconnected from the device through the switch valve 8, and then the transfer pressure assembly 2 is disconnected from the transmitter body 1 through the blocking valve 3. The transfer pressure liquid in the transmitter body 1 is sealed inside it, and then the transfer pressure assembly 2 and the transmitter body 1 are separated from the switch valve 8, and then the transfer pressure assembly 2 is replaced on the blocking valve 3. After the replacement of the transfer pressure assembly 2 is completed, it and the transmitter body 1 are fixed to the switch valve 8, and then the subsequent detection operation is carried out by opening the blocking valve 3 and the switch valve 8.
[0032] To summarize, the pressure transmitter uses the pressure transfer component 2 to allow the gas or liquid in the pipeline to enter the pressure transfer tube 4 through the switch valve 8 under pressure. The gas or liquid in the pressure transfer tube 4 drives the pressure transfer piston 5 to move along the inside thereof. The pressure transfer piston 5 drives the pressure transfer liquid in the pressure transfer tube 4 to enter the transmitter body 1 through the blocking valve 3. During this process, two sets of lubricating sealing rings 6 and flexible sealing rings 7 provide sealing between the pressure transfer piston 5 and the pressure transfer tube 4. The transmitter body 1 determines the pressure of the gas or liquid in the pipeline by detecting the pressure transfer liquid, thereby reducing the probability of damage to important components in the device during operation and increasing the service life of the device.
[0033] The pressure transmitter uses a support assembly 9 to allow two sets of clamping arc plates 10 to form a pipe clamp structure on the pipeline surface. The impact force on the transmitter body 1 or the pressure transfer assembly 2 is transmitted to the pipe clamp structure through the rear positioning bracket 11 or the front positioning bracket 12 respectively, and the impact on the pipe clamp structure is transmitted to the pipeline, thereby reducing the probability of failure of the connection between the device and the pipeline or the connection itself, effectively improving the impact resistance of the device, thereby enhancing the practicability of the device.
[0034] The pressure transmitter disconnects the pipeline from the device through the switch valve 8, and then disconnects the pressure transfer component 2 from the transmitter body 1 through the blocking valve 3. The pressure transfer liquid in the transmitter body 1 is sealed inside it, and then the pressure transfer component 2 is replaced on the blocking valve 3. After the pressure transfer component 2 is replaced, it and the transmitter body 1 are fixed to the switch valve 8, and then the subsequent detection work is carried out by opening the blocking valve 3 and the switch valve 8, which reduces the impact of device maintenance on the pipeline, improves the convenience of the device maintenance process, and thus enhances the applicability of the device.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pressure transmitter, comprising a transmitter body (1), characterized in that: The detection end of the transmitter body (1) is threadedly connected to a blocking valve (3), and the input end of the blocking valve (3) is connected to a pressure conversion assembly (2). The pressure conversion assembly (2) includes a pressure conversion tube (4), and the inner wall of the pressure conversion tube (4) is slidably plugged with a pressure conversion piston (5). The outer surface of the pressure conversion piston (5) is provided with a soft sealing groove and two groups of hard sealing grooves. The inner wall of each group of hard sealing grooves can be rotatably covered with a lubricating sealing ring (6), and the inner wall of the soft sealing groove can be rotatably covered with a flexible sealing ring (7). The interior of the pressure conversion tube (4) is provided with a pressure conversion liquid. The input end of the pressure-converting tube (4) is threadedly connected to a switch valve (8), and a support assembly (9) is fixedly installed on the back of the transmitter body (1) by screws. The support assembly (9) includes two groups of clamping arc plates (10). The two groups of clamping arc plates (10) are fixedly installed by clamping bolts and clamping nuts. A rear positioning bracket (11) is provided on the top of the lower clamping arc plate (10), and a front positioning bracket (12) is provided on the top of the upper clamping arc plate (10). The inner wall of the front positioning bracket (12) is slidably mounted on the outer surface of the pressure-converting tube (4).
2. A pressure transmitter according to claim 1, characterized in that: An information sign (13) is arranged on the front face of the front positioning bracket (12), and an information mark is arranged on the front face of the information sign (13).
3. A pressure transmitter according to claim 1, characterized in that: Conformal reinforcing ribs (14) are provided on both left and right sides of the outer side surface of each group of the clamping arc plates (10), and the thickness of each group of the conformal reinforcing ribs (14) is equal to the wall thickness of the clamping arc plates (10).
4. A pressure transmitter according to claim 1, characterized in that: The inner wall of each group of the clamping arc plates (10) is provided with a buffer pad (15), and the inner wall of each group of the buffer pad (15) is provided with a plurality of groups of anti-slip grooves.
5. A pressure transmitter according to claim 1, characterized in that: The inner wall of the pressure-converting tube (4) is provided with two groups of limiting rings (16), and the inner diameter of each group of limiting rings (16) is larger than the inner diameter of the connecting end of the transmitter body (1).
6. A pressure transmitter according to claim 1, characterized in that: A locking nut (17) is threadedly mounted on the outer surface of the communication end of the transmitter body (1), and the bottom end of the locking nut (17) is tightly pressed against the top end of the blocking valve (3).