CN208350279U - A kind of pressure instrumentation pressure obtaning device - Google Patents
A kind of pressure instrumentation pressure obtaning device Download PDFInfo
- Publication number
- CN208350279U CN208350279U CN201820874760.9U CN201820874760U CN208350279U CN 208350279 U CN208350279 U CN 208350279U CN 201820874760 U CN201820874760 U CN 201820874760U CN 208350279 U CN208350279 U CN 208350279U
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- pressure
- valve
- threeway
- instrumentation
- blowdown
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Abstract
The utility model proposes a kind of pressure instrumentation pressure obtaning devices, pressure measuring valve, blowdown valve and blind flange including threeway and three ports for being separately positioned on threeway.The pressure measuring valve and blowdown valve are separately positioned on two parallel ports of threeway.Described pressure measuring valve one end passes through flanged joint PRESSURE TAP by flanged joint threeway, the other end of pressure measuring valve.It is provided with circular hole on the blind flange, the pressure guiding pipe being connected with pressure instrumentation is welded on circular hole.The utility model plays the role of separation vessel by threeway, blowdown valve can easily purge blowdown and watch stopping state in pressure pipeline, and each component is convenient for disassembly and assembly, and cleaning pressure obtaning device can be still removed when equipment under test is not stopped transport, it is effective to guarantee pressure instrumentation long-term operation.
Description
Technical field
The utility model relates to instrument and meter for automation project installation technical field, specifically a kind of pressure instrumentation pressure obtaning device.
Background technique
The pressure measuring device that industrial production equipment pipeline, equipment would generally be used, the surveys pressure such as common pressure transmitter
The pressure guiding pipe of equipment generallys use the pressure guiding pipe of Φ 14mm or Φ 18mm, and installation DN15 samples pipe fitting on tested pipeline, equipment,
Welding installation DN15 gate valve or shut-off valve on pipe fitting are sampled, pressure guiding pipe is directly connected to the valve on sampling pipe fitting.If
Dust content is big in measured medium, gas-liquid mixed or measured medium easily crystallize, and can block pressure tappings and pressure guiding pipe causes to survey pressure and sets
It is standby normally to measure.And pressure pipeline cleaning is difficult, and pipeline is needed to change when serious, and the devices parking such as need can just dredge clear
It washes, device is normally produced and causes very big harm.
Utility model content
The technical issues of solution: to solve the above problems, the utility model proposes a kind of pressure instrumentation pressure obtaning device, it can
Prevent blocking, it is easy to clean.
Technical solution: three are separately positioned on the utility model proposes a kind of pressure instrumentation pressure obtaning device, including threeway and
Pressure measuring valve, blowdown valve and the blind flange of three logical ports.The pressure measuring valve and blowdown valve be separately positioned on two of threeway it is flat
Row port.Described pressure measuring valve one end passes through flanged joint PRESSURE TAP by flanged joint threeway, the other end of pressure measuring valve.Institute
It states and is provided with circular hole on blind flange, the pressure guiding pipe being connected with pressure instrumentation is welded on circular hole.
Further, the latus rectum of the threeway, PRESSURE TAP, pressure measuring valve and blowdown valve is identical.
Further, the latus rectum of the threeway, PRESSURE TAP, pressure measuring valve and blowdown valve is not less than DN50.
Further, the blowdown valve and threeway pass through flanged joint or threaded connection.
Further, the pressure measuring valve is ball valve.
Further, the blowdown valve is ball valve.
Further, the outer diameter of the pressure guiding pipe is not less than 18mm, and the end of pressure guiding pipe is welded with to be connect with pressure instrumentation terminal
The reducer union that head diameter matches.
Further, the Circularhole diameter on the blind flange is slightly larger than impulse pipe outside diameter.
The utility model has the advantages that the utility model by the pipe fitting diameter of overstriking pressure obtaning device, prevents blocking, threeway can be with
Play the role of separation vessel, blowdown valve can easily purge blowdown and watch stopping state in pressure pipeline, and each component
It is convenient for disassembly and assembly, cleaning pressure obtaning device can be still removed when equipment under test is not stopped transport, it is effective to guarantee pressure instrumentation long period
Operation.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
Specific embodiment
Such as Fig. 1, an embodiment of the present invention, the threeway 3 including DN50, two parallel ports difference of threeway 3
By the pressure measuring valve 2 of flanged joint DN50 and the blowdown valve 7 of DN50, another vertical port of threeway 3 is additionally provided with blind flange 4.
Described 2 one end of pressure measuring valve passes through flanged joint PRESSURE TAP 1 by flanged joint threeway 3, the other end of pressure measuring valve 2.It is described
It is provided with circular hole on blind flange 4, the pressure guiding pipe 5 being connected with pressure instrumentation is welded on circular hole.
The pipeline of pressure instrumentation pressure obtaning device chooses DN50 latus rectum, and circulation area is big, is not easy to be blocked by impurity.
Threeway 3 can play the role of separation vessel, while three ports of threeway 3 are by flange and other component
Connection is repaired convenient for disassembly and assembly.
The setting of blowdown valve 7 can be opened for purging blowdown, can easily also watch stopping state in pressure pipeline.
Pressure measuring valve 2 and blowdown valve 7 use ball valve, and spool is rotary switch, is not plugged up, and circulation area is big, and spool is clear
It washes more convenient.
The outer diameter of pressure guiding pipe 5 is Φ 22mm, variable diameter is carried out by the reducing joint 6 of 22 × Φ of Φ 18, with pressure instrumentataion
Terminal fitting diameter matches.Such structure increases the outer diameter of pressure guiding pipe 5, and circulation area is big, is not easy to be blocked by impurity.Method
Circularhole diameter on blue lid 4 is Φ 23mm, facilitates welding.
Working principle: after the completion of the installation connection of pressure instrumentation pressure obtaning device, when normal work, blowdown valve 7 is closed, opening takes
Pressure valve 2, by pressure conduction to pressure instrumentation.
The impurity such as dust, lime set or crystal salt in measured medium are deposited in runner gradually.Check inner pipeline plug plug feelings
When condition, pressure measuring valve 2 is first closed, rear blowdown valve 7 of opening checks inner pipeline plug plug situation.
There are many modes for the cleaning of pipeline:
(1) pressure measuring valve 2 and blowdown valve 7 are opened, by there is the medium of pressure to be purged in equipment under test.
(2) pressure measuring valve 2 is closed, measuring instrumentss are removed, the media such as external introducing compress wind purge from pressure guiding pipe 5, and beat
Open 7 blowdown of blowdown valve.
(3) pressure measuring valve 2 is closed, measuring instrumentss are removed, opens blowdown valve 7, external introducing compress wind etc. is situated between from blowdown valve 7
Matter purging, and from blowdown from pressure guiding pipe 5.
(4) pressure measuring valve 2 is closed, measuring instrumentss, blowdown valve 7 and threeway 3 are all dismantled, cleaned offline.
Above-mentioned cleaning way can carry out under the premise of equipment under test is not stopped transport.
Claims (8)
1. a kind of pressure instrumentation pressure obtaning device, it is characterised in that: including threeway (3) and be separately positioned on three of threeway (3)
Pressure measuring valve (2), blowdown valve (7) and the blind flange (4) of port；The pressure measuring valve (2) and blowdown valve (7) are separately positioned on threeway
(3) two parallel ports；Described pressure measuring valve (2) one end is passed through by flanged joint threeway (3), the other end of pressure measuring valve (2)
Flanged joint PRESSURE TAP (1)；On the blind flange (4) it is provided with circular hole, is welded on circular hole and is connected with pressure instrumentation
Pressure guiding pipe (5).
2. pressure instrumentation pressure obtaning device according to claim 1, it is characterised in that: the threeway (3), PRESSURE TAP
(1), pressure measuring valve (2) is identical with the latus rectum of blowdown valve (7).
3. pressure instrumentation pressure obtaning device according to claim 2, it is characterised in that: the threeway (3), PRESSURE TAP
(1), latus rectum >=DN50 of pressure measuring valve (2) and blowdown valve (7).
4. pressure instrumentation pressure obtaning device according to claim 1 to 3, it is characterised in that: the blowdown valve (7)
Pass through flanged joint or threaded connection with threeway (3).
5. pressure instrumentation pressure obtaning device according to claim 1 to 3, it is characterised in that: the pressure measuring valve (2)
It is ball valve.
6. pressure instrumentation pressure obtaning device according to claim 1 to 3, it is characterised in that: the blowdown valve (7)
It is ball valve.
7. pressure instrumentation pressure obtaning device according to claim 1 to 3, it is characterised in that: the pressure guiding pipe (5)
Outer diameter >=18mm, the end of pressure guiding pipe (5) is welded with the reducer union (6) to match with pressure instrumentation terminal fitting diameter.
8. pressure instrumentation pressure obtaning device according to claim 7, it is characterised in that: the circular hole on the blind flange (4) is straight
Diameter is slightly larger than pressure guiding pipe (5) outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820874760.9U CN208350279U (en) | 2018-06-07 | 2018-06-07 | A kind of pressure instrumentation pressure obtaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820874760.9U CN208350279U (en) | 2018-06-07 | 2018-06-07 | A kind of pressure instrumentation pressure obtaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208350279U true CN208350279U (en) | 2019-01-08 |
Family
ID=64882538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820874760.9U Active CN208350279U (en) | 2018-06-07 | 2018-06-07 | A kind of pressure instrumentation pressure obtaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208350279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974421A (en) * | 2021-02-07 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Method for treating sampling tube ash blockage |
-
2018
- 2018-06-07 CN CN201820874760.9U patent/CN208350279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974421A (en) * | 2021-02-07 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Method for treating sampling tube ash blockage |
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