CN217900910U - Multifunctional process variable control switch - Google Patents
Multifunctional process variable control switch Download PDFInfo
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- CN217900910U CN217900910U CN202222171156.9U CN202222171156U CN217900910U CN 217900910 U CN217900910 U CN 217900910U CN 202222171156 U CN202222171156 U CN 202222171156U CN 217900910 U CN217900910 U CN 217900910U
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- piston
- isolation
- changer
- process variable
- control switch
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Abstract
The utility model provides a multi-functional process variable control switch. Relates to the technical field of industrial process control. The downside is taken over for horizontal isolation tube to the changer, isolation tube and changer are taken over and are linked together and be "T" integrative structure, the processing of isolation tube right side has the installation external screw thread, it is connected with isolation tube clearance fit through twice sealing washer to be equipped with the isolation piston in the isolation tube, keep apart piston left side fixed connection lead screw, lead screw and end cover threaded connection, end cover and isolation tube left side fixed connection, lead screw left side processing has the square head, position between the twice sealing washer of isolation piston, processing has a through-hole on the isolation tube. The utility model discloses following beneficial effect has: the utility model discloses simple structure, easy to operate can realize on-line cleaning, test, need not to dismantle process variable changer.
Description
The technical field is as follows:
the utility model belongs to the technical field of industrial process control technique and specifically relates to a multi-functional process variable control switch.
Background art:
industrial process field devices, such as process transmitters, are used in industrial process control and monitoring systems to monitor industrial process variables and to transmit measured values of the process variables back to control rooms in, for example, chemical, oil, gas, pharmaceutical or other fluid processing plants. The term "process variable" refers to a physical or chemical state or energy conversion of a substance, examples of which include pressure, temperature, conductivity, pH and other properties;
process transmitters use process variable sensors to sense or measure a process variable. Such sensors can malfunction or fail, which can result in erroneous process variable measurements. Process transmitters may periodically need to be cleaned and tested by skilled technicians to detect failed or degraded process variable sensors, but such testing may require disassembly of the process transmitter and testing in a particular fluid, which can be lengthy and complex to operate.
The utility model has the following contents:
in order to solve the problem that the time of present test process changer is long, the operation is complicated, the utility model provides a multi-functional process variable control switch.
The technical scheme of the utility model is that: the utility model provides a multi-functional process variable control switch, take over including the changer, the top processing is taken over to the changer has the installation internal thread, the changer is taken over the downside and is horizontal isolation tube, it takes over with the changer and is linked together and be "T" word body structure to keep apart the pipe, it has the installation external screw thread to keep apart the processing of pipe right side, it is connected with isolation tube clearance fit through twice sealing washer to keep apart intraductal isolation piston that is equipped with, keep apart piston left side fixed connection lead screw, lead screw and end cover threaded connection, end cover and isolation tube left side fixed connection, lead screw left side processing has the square head, position between the twice sealing washer of isolation piston, it has a through-hole to process on the isolation tube.
One section of annular groove is processed on the left side of the isolation piston, a sealing piston is arranged on the left side of the annular groove, and the sealing piston is connected with the isolation pipe in a clearance fit mode through two sealing rings.
When the sealing ring of the isolation piston enters the isolation pipe on the right side of the transmitter connecting pipe, the through hole is communicated with the transmitter connecting pipe, and when the isolation piston moves to the rightmost position, the two sealing rings of the sealing piston are located on the two sides of the through hole.
The transmitter connecting pipe is connected with a one-way valve at the upper side.
The size of the mounting external thread is matched with that of the mounting internal thread.
The utility model discloses following beneficial effect has: through setting up the isolation tube, when needs test, when wasing, it is sealed to rotate the lead screw and remove the isolation piston and will keep apart the tube export, and the changer is taken over and the through-hole intercommunication, and the accessible is followed the check valve and is injected into the washing liquid and wash the changer probe, and the washing liquid flows from the through-hole, during the test, seals the through-hole with sealed piston, injects the test liquid and tests, the utility model discloses simple structure, easy to operate can realize online cleaning, test, need not to dismantle the process variable changer.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a working diagram of the present invention;
fig. 3 is another working diagram of the present invention.
In the figure, 1, a transmitter connecting pipe, 2, an internal thread, 3, an isolating pipe, 4, an external thread, 5, a sealing piston, 6, an isolating piston, 7, a through hole, 8, an end cover, 9, a lead screw, 10, a ring groove and 11, a one-way valve are arranged.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
by figure 1 combine shown in figures 2 ~ 3, a multi-functional process variable control switch, take over 1 including the changer, 1 top processing is taken over to the changer has installation internal thread 2, 1 downside is horizontal isolation tube 3 is taken over to the changer, isolation tube 3 is taken over 1 with the changer and is linked together and be "T" word body structure, 3 right side processing of isolation tube has installation external screw thread 4, it connects with isolation tube 3 clearance fit through twice sealing washer to be equipped with isolation piston 6 in the isolation tube 3, 6 left sides fixed connection lead screw 9 of isolation piston, lead screw 9 and 8 threaded connection of end cover, end cover 8 and 3 left sides fixed connection of isolation tube, lead screw 9 left side processing has the square head, position between the twice sealing washer of isolation piston 6, processing has a through-hole 7 on the isolation tube 3.
One section annular 10 of isolation piston 6 left side processing, annular 10 left side is sealed piston 5, and sealed piston 5 is connected with 3 clearance fit of spacer tube through twice sealing washer.
When the sealing ring of isolation piston 6 gets into in the isolation pipe 3 on transmitter takeover 1 right side, through-hole 7 and transmitter takeover 1 intercommunication, when isolation piston 6 moved to the rightmost position, the twice sealing ring of sealed piston 5 will be located the both sides of through-hole 7.
A one-way valve 11 is connected to the transmitter connecting pipe 1.
Installation external screw thread 4 and installation internal thread 2 size phase-match can be convenient install the joint of changer in former installation the utility model discloses.
Through setting up isolation tube 3, when needs test, washing, it is sealed to rotate lead screw 9 and remove isolation piston 6 and will keep apart 3 exports of tube, and 1 and through-hole 7 intercommunications are taken over to the changer, and the accessible is followed 11 injection washing liquids from the check valve and is washd the changer probe, and the washing liquid flows out from through-hole 7, during the test, seals through-hole 7 with sealing piston 5, pours into the test solution and tests, the utility model discloses simple structure, easy to operate can realize online cleaning, test, need not to dismantle process variable changer.
Claims (5)
1. A multi-functional process variable control switch, includes that the changer takes over (1), its characterized in that: processing at changer takeover (1) top has installation internal thread (2), changer takeover (1) downside is horizontal spacer tube (3), spacer tube (3) are taken over (1) with the changer and are linked together and be "T" word body structure, spacer tube (3) right side processing has installation external screw thread (4), it is connected with spacer tube (3) clearance fit through twice sealing washer to be equipped with isolation piston (6) in spacer tube (3), keep apart piston (6) left side fixed connection lead screw (9), lead screw (9) and end cover (8) threaded connection, end cover (8) and spacer tube (3) left side fixed connection, lead screw (9) left side processing has the square head, position between the twice sealing washer of isolation piston (6), processing has one through-hole (7) on spacer tube (3).
2. A multi-function process variable control switch as recited in claim 1 wherein: one section of ring groove (10) is processed on the left side of the isolation piston (6), a sealing piston (5) is arranged on the left side of the ring groove (10), and the sealing piston (5) is connected with the isolation pipe (3) in a clearance fit mode through two sealing rings.
3. A multi-function process variable control switch according to claim 1 or 2, wherein: when the sealing ring of isolation piston (6) gets into in isolation pipe (3) on changer takeover (1) right side, through-hole (7) and changer takeover (1) intercommunication, when isolation piston (6) removed the rightmost position, the twice sealing ring of sealed piston (5) will be located the both sides of through-hole (7).
4. The multi-functional process variable control switch of claim 1, wherein: a one-way valve (11) is connected to the transmitter connecting pipe (1).
5. The multi-functional process variable control switch of claim 1, wherein: the size of the mounting external thread (4) is matched with that of the mounting internal thread (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222171156.9U CN217900910U (en) | 2022-08-17 | 2022-08-17 | Multifunctional process variable control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222171156.9U CN217900910U (en) | 2022-08-17 | 2022-08-17 | Multifunctional process variable control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217900910U true CN217900910U (en) | 2022-11-25 |
Family
ID=84143010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222171156.9U Active CN217900910U (en) | 2022-08-17 | 2022-08-17 | Multifunctional process variable control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217900910U (en) |
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2022
- 2022-08-17 CN CN202222171156.9U patent/CN217900910U/en active Active
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