CN210603695U - Pressure transmitter for measuring pulp pressure - Google Patents
Pressure transmitter for measuring pulp pressure Download PDFInfo
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- CN210603695U CN210603695U CN201921588346.2U CN201921588346U CN210603695U CN 210603695 U CN210603695 U CN 210603695U CN 201921588346 U CN201921588346 U CN 201921588346U CN 210603695 U CN210603695 U CN 210603695U
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Abstract
The utility model discloses a measure pressure transmitter that paper pulp pressure was used, including casing, electrical joint, coupling assembling, electric capacity pressure sensor, circuit board, electrical joint and coupling assembling set up respectively the casing both ends, the circuit board sets up in the casing, just the circuit board with coupling assembling fixed connection, electric capacity pressure sensor sets up in the coupling assembling, electric capacity pressure sensor's contact diaphragm is made by ceramic material, the circuit board respectively with electric capacity pressure sensor, electric connection. The utility model discloses but increase of service life, convenient to detach and installation.
Description
Technical Field
The utility model relates to a pressure transmitter equipment technical field specifically is a measure pressure transmitter that paper pulp pressure used.
Background
The pressure transmitter is a device for converting pressure into pneumatic signal or electric signal for control and remote transmission, and can convert the physical pressure parameters of gas, liquid and the like sensed by the load cell sensor into standard electric signals to be supplied to secondary instruments such as indication alarm instruments, recording instruments, regulators and the like for measurement, indication and process regulation. At present, when pressure transmitter on the market measures the pressure of the thick medium of paper pulp class, most of them install additional and fill the silicone oil flange and remove the solution, this kind of mode can lead to pressure transmitter to become very heavy, and the installation is inconvenient, and paper pulp has certain corrosivity moreover, can cause certain corruption to the measurement diaphragm that fills the silicone oil flange, and time is one long, and the diaphragm can perforate easily, leads to whole pressure transmitter unable use, and life is short.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming of above-mentioned prior art, providing a pressure transmitter that measurement paper pulp pressure was used of increase of service life, convenient to detach and installation.
The utility model discloses a realize through following technical scheme: the utility model provides a measure pressure transmitter that paper pulp pressure was used, includes casing, electrical connector, coupling assembling, capacitance pressure sensor, circuit board, electrical connector and coupling assembling set up respectively the casing both ends, the circuit board sets up in the casing, just the circuit board with coupling assembling fixed connection, capacitance pressure sensor sets up in the coupling assembling, capacitance pressure sensor's contact diaphragm is made by ceramic material, the circuit board respectively with capacitance pressure sensor, electrical connector electric connection.
Further: coupling assembling includes pressure joint, clamping ring, pressure joint is hollow structure, be provided with the mounting groove in the pressure joint, electric capacity pressure sensor sets up in the mounting groove, the clamping ring includes ring body and lower ring body, go up the ring body with the casing is connected, just the circuit board with go up ring body fixed connection, down the ring body with pressure joint connects, just the ring body supports to press down on the electric capacity pressure sensor, will electric capacity pressure sensor compresses tightly in the mounting groove.
Further: the upper ring body is provided with a bulge, and the circuit board is fixedly connected with the bulge through a bolt.
Further: the electrical connector is threadably connected to the housing.
Further: and a first sealing ring is arranged at the joint of the upper ring body and the shell.
Further: and a second sealing ring is arranged at the joint of the electric joint and the shell.
Further: the outer wall of the pressure joint is provided with a first connecting thread.
Further: the upper ring body is connected with the shell through threads, and the lower ring body is connected with the pressure joint through threads.
Further: still include the damping structure, the damping structure includes the cushion socket, the cushion socket passes through first connecting thread with pressure joint connects, set gradually in the cushion socket draw pressure mouth, first draw pressure passageway, cushion chamber, the second that communicates each other and draw pressure passageway, hole, the hole through with pressure joint communicates, the cushion socket outer wall is provided with second connecting thread.
Further: the diameter of the first pressure leading channel and the diameter of the second pressure leading channel are A, the diameter of the buffer cavity is B, the diameter of the inner hole is C, and A < B < C.
The beneficial effects of the utility model
1. Compared with the prior art, the contact diaphragm of the capacitance pressure sensor is made of ceramic materials, and the ceramic materials can resist corrosion, so that the utility model can directly measure the pressure of pulp viscous media, and can prolong the service life of the pressure transmitter; the capacitance pressure sensor is arranged in the connecting assembly, the connecting assembly comprises the pressure joint and the pressure ring, the capacitance pressure sensor is arranged in the mounting groove of the pressure joint, the lower ring body of the pressure ring is connected with the pressure joint through threads, the lower ring body is pressed against the capacitance pressure sensor, and the capacitance pressure sensor is pressed in the mounting groove, so that the mounting stability of the capacitance pressure sensor can be improved, the capacitance pressure sensor is prevented from loosening, and the detection accuracy is improved; lower ring body passes through threaded connection with pressure joint, goes up the ring body and is connected with the casing through the screw thread, and lower ring body passes through the screw thread to be connected with pressure joint, convenient to detach and installation, simple structure.
2. Pressure joint is connected with the damping structure, and the damping structure includes the cushion socket, sets gradually the drawing of mutual intercommunication in the cushion socket and presses mouth, first drawing and press the passageway, cushion chamber, second, realize first order buffering through first cushion chamber, and the second level buffering is realized to the hole, reduces the impact to capacitance pressure sensor, effectively protects capacitance pressure sensor, can effectively protect capacitance pressure sensor's contact diaphragm, extension pressure transmitter's life.
Drawings
FIG. 1 is a schematic diagram of an internal structure of an embodiment;
FIG. 2 is a schematic structural view of an embodiment;
FIG. 3 is a schematic diagram of an internal structure of the second embodiment.
Description of reference numerals: the pressure sensor comprises a shell 1, an electrical connector 2, a second sealing ring 21, a connecting assembly 3, a pressure connector 31, a mounting groove 311, a pressure ring 32, an upper ring 321, a lower ring 322, a protrusion 323, a first sealing ring 33, a first connecting thread 34, a capacitance pressure sensor 4, a circuit board 5, a buffer seat 6, a pressure leading port 61, a first pressure leading channel 62, a buffer cavity 63, a second pressure leading channel 64, an inner hole 65 and a second connecting thread 7.
Detailed Description
The first embodiment is as follows: fig. 1 and fig. 2 are the utility model provides a pair of measure pressure transmitter embodiment schematic structure diagram that paper pulp pressure used, including casing 1, electrical joint 2, coupling assembling 3, electric capacity pressure sensor 4, circuit board 5, electrical joint 2 and coupling assembling 3 set up respectively at casing 1 both ends, electrical joint 2 passes through the screw thread and is connected with casing 1, electrical joint 2 is provided with second sealing washer 21 with casing 1's junction, circuit board 5 sets up in casing 1, and circuit board 5 and coupling assembling 3 fixed connection, electric capacity pressure sensor 4 sets up in coupling assembling 3, electric capacity pressure sensor 4's contact diaphragm 41 is made by ceramic material, circuit board 5 respectively with electric capacity pressure sensor 4, electric joint 2 electric connection.
Coupling assembling 3 includes pressure joint 31, clamping ring 32, pressure joint 31 is hollow structure, be provided with mounting groove 311 in the pressure joint 31, electric capacity pressure sensor 4 sets up in mounting groove 311, clamping ring 32 includes ring body 321 and lower ring body 322, it passes through threaded connection with casing 1 to go up ring body 321, the junction of going up ring body 321 and casing 1 is provided with first sealing washer 33, and circuit board 5 and last ring body 321 fixed connection, upward be provided with protruding 323 on the ring body 321, circuit board 5 passes through bolt and protruding 323 fixed connection, ring body 322 passes through threaded connection with pressure joint 31 down, and ring body 322 supports and presses on electric capacity pressure sensor 4 down, compress tightly electric capacity pressure sensor 4 in mounting groove 311, the outer wall of pressure joint 31 is provided with first connecting thread 34.
The contact diaphragm 41 of the capacitance pressure sensor 4 is made of ceramic material, and the ceramic material can resist corrosion, so that the utility model can directly measure the pressure of pulp viscous media, and can prolong the service life of the pressure transmitter; the capacitance pressure sensor 4 is arranged in the connecting assembly 3, the connecting assembly 3 comprises the pressure connector 31 and the pressure ring 32, the capacitance pressure sensor 4 is arranged in the mounting groove 311 of the pressure connector 31, the lower ring body 322 of the pressure ring 32 is connected with the pressure connector 31 through threads, the lower ring body 322 is pressed against the capacitance pressure sensor 4, the capacitance pressure sensor 4 is pressed in the mounting groove 311, the mounting stability of the capacitance pressure sensor 4 can be improved, the capacitance pressure sensor 4 is prevented from loosening, and the detection accuracy is improved; the lower ring body 322 is connected with the pressure joint 31 through threads, the upper ring body 321 is connected with the shell 1 through threads, and the lower ring body 322 is connected with the pressure joint 31 through threads, so that the disassembly and the assembly are convenient, and the structure is simple; the first sealing ring 33 is arranged at the joint of the upper ring body 321 and the shell 1, and the second sealing ring 21 is arranged at the joint of the electrical connector 2 and the shell 1, so that the sealing effect of connection between the shell 1 and the electrical connector 2 and the connecting assembly 3 can be improved.
Example two: referring to fig. 3, the difference between the first embodiment and the first embodiment is that the damping structure further includes a damping structure, the damping structure includes a buffer base 6, the buffer base 6 is connected to the pressure connector 31 through a first connecting thread 34, a pressure leading port 61, a first pressure leading passage 62, a buffer chamber 63, a second pressure leading passage 64, and an inner hole 65, which are mutually communicated, are sequentially disposed in the buffer base 6, the inner hole 65 is communicated to the pressure connector 31, the second connecting thread 7 is disposed on the outer wall of the buffer base 6, the diameters of the first pressure leading passage 62 and the second pressure leading passage are a, the diameter of the buffer chamber 63 is B, the diameter of the inner hole 65 is C, and a < B < C.
Because the diameter C of the buffer cavity 63 is greater than the diameter B of the inner hole 65, and the diameter B of the inner hole 65 is greater than the diameters of the first pressure guide channel and the second pressure guide channel A, in the using process, when pressure impact occurs, the pressure impact firstly enters the buffer cavity 63 through the pressure guide port 61 and the first pressure guide channel 62 to perform first-stage buffering, then enters the inner hole 65 from the buffer cavity 63 through the second pressure guide channel 64 to complete second-stage buffering, and finally reaches the capacitance pressure sensor 4 from the inner hole 65. Reach capacitive pressure sensor 4 after hole 65 carries out the second level buffering again after carrying out the first order buffering through cushion chamber 63, reduced the impact to capacitive pressure sensor 4, effectively protect capacitive pressure sensor 4, can effectively protect capacitive pressure sensor 4's contact diaphragm, extension pressure transmitter's life. Through the second connecting thread 7 of 6 outer walls of cushion socket, can be with the utility model discloses be connected with other equipment.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.
Claims (10)
1. A pressure transmitter for measuring pulp pressure, characterized by: including casing, electrical joint, coupling assembling, capacitance pressure sensor, circuit board, electrical joint and coupling assembling set up respectively the casing both ends, the circuit board sets up in the casing, just the circuit board with coupling assembling fixed connection, capacitance pressure sensor sets up in the coupling assembling, capacitance pressure sensor's contact diaphragm is made by ceramic material, the circuit board respectively with capacitance pressure sensor, electrical joint electric connection.
2. A pressure transmitter for measuring pulp pressure according to claim 1, characterized in that: coupling assembling includes pressure joint, clamping ring, pressure joint is hollow structure, be provided with the mounting groove in the pressure joint, electric capacity pressure sensor sets up in the mounting groove, the clamping ring includes ring body and lower ring body, go up the ring body with the casing is connected, just the circuit board with go up ring body fixed connection, down the ring body with pressure joint connects, just the ring body supports to press down on the electric capacity pressure sensor, will electric capacity pressure sensor compresses tightly in the mounting groove.
3. A pressure transmitter for measuring pulp pressure according to claim 2, characterized in that: the upper ring body is provided with a bulge, and the circuit board is fixedly connected with the bulge through a bolt.
4. A pressure transmitter for measuring pulp pressure according to any of claims 2-3, characterized in that: the electrical connector is threadably connected to the housing.
5. A pressure transmitter for measuring pulp pressure according to claim 3, characterized in that: and a first sealing ring is arranged at the joint of the upper ring body and the shell.
6. A pressure transmitter for measuring pulp pressure according to claim 4, characterized in that: and a second sealing ring is arranged at the joint of the electric joint and the shell.
7. A pressure transmitter for measuring pulp pressure according to claim 4, characterized in that: the outer wall of the pressure joint is provided with a first connecting thread.
8. A pressure transmitter for measuring pulp pressure according to claim 5, characterized in that: the upper ring body is connected with the shell through threads, and the lower ring body is connected with the pressure joint through threads.
9. A pressure transmitter for measuring pulp pressure according to claim 7, characterized in that: still include the damping structure, the damping structure includes the cushion socket, the cushion socket passes through first connecting thread with pressure joint connects, set gradually in the cushion socket draw pressure mouth, first draw pressure passageway, cushion chamber, the second that communicates each other and draw pressure passageway, hole, the hole through with pressure joint communicates, the cushion socket outer wall is provided with second connecting thread.
10. A pressure transmitter for measuring pulp pressure according to claim 9, characterized in that: the diameter of the first pressure leading channel and the diameter of the second pressure leading channel are A, the diameter of the buffer cavity is B, the diameter of the inner hole is C, and A < B < C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588346.2U CN210603695U (en) | 2019-09-23 | 2019-09-23 | Pressure transmitter for measuring pulp pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588346.2U CN210603695U (en) | 2019-09-23 | 2019-09-23 | Pressure transmitter for measuring pulp pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603695U true CN210603695U (en) | 2020-05-22 |
Family
ID=70695544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921588346.2U Active CN210603695U (en) | 2019-09-23 | 2019-09-23 | Pressure transmitter for measuring pulp pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210603695U (en) |
-
2019
- 2019-09-23 CN CN201921588346.2U patent/CN210603695U/en active Active
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