CN203037299U - Novel type composite flow transmitter - Google Patents
Novel type composite flow transmitter Download PDFInfo
- Publication number
- CN203037299U CN203037299U CN 201320054503 CN201320054503U CN203037299U CN 203037299 U CN203037299 U CN 203037299U CN 201320054503 CN201320054503 CN 201320054503 CN 201320054503 U CN201320054503 U CN 201320054503U CN 203037299 U CN203037299 U CN 203037299U
- Authority
- CN
- China
- Prior art keywords
- sampling
- negative pressure
- pressure
- sampling room
- taking pipe
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a novel type composite flow transmitter. The novel type composite flow transmitter comprises a shell body mounted with a sampling cavity and a differential pressure sensor, wherein the sampling cavity is divided by the differential pressure sensor into a positive pressure sampling room and a negative sampling room which are isolated from each other, an external signal connecting wire is arranged on the differential pressure sensor, a positive pressure-taking pipe and a negative pressure-taking pipe which are connected with a fluid pressure-taking machine are arranged at the lower position of the shell body, the positive pressure-taking pipe is communicated with the positive sampling room, the negative pressure-taking pipe is communicated with the negative sampling room, constant temperature generators are arranged in both the positive pressure-taking pipe and the negative pressure-taking pipe, and constant temperature layers are arranged in the positive pressure sampling room and the negative pressure sampling room. The novel type composite flow transmitter has the advantages of being simple in structure. The constant temperature generators are arranged in both the positive pressure-taking pipe and the negative pressure-taking pipe, and the constant temperature layers are arranged in the positive pressure sampling room and the negative pressure sampling room, and therefore temperatures in both the positive pressure sampling room and the negative pressure sampling room are maintained in a constant state permanently, detection errors of the differential pressure sensor due to different temperatures can be avoided, possibility of sampling errors is effectively reduced, and effectiveness of data transmission is improved.
Description
Technical field
The utility model belongs to the transmitter field, is specifically related to a kind of NEW TYPE OF COMPOSITE flow transmitter.
Background technology
The flow transmitter of prior art is mainly by the housing that is provided with differential pressure pickup, the positive and negative pressure pipe composition that differential pressure pickup is divided into enclosure interior two positive and negative sampler chambers of isolating mutually and links to each other with positive and negative sampler chamber bottom, differential pressure pickup is connected with external meters, it can be finished the sampling of flow transmitter to a certain extent and transmit data, yet also there is certain deficiency in it, as change the sampling error that causes owing to environment and pressure own, make to become and send the result inaccurate, and usage safety performance is poor.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, NEW TYPE OF COMPOSITE flow transmitter that sampling error is little.
The technical scheme that realizes the utility model purpose is a kind of NEW TYPE OF COMPOSITE flow transmitter; comprise the housing and the differential pressure pickup that are provided with sampling cavity; described differential pressure pickup is divided into sampling cavity malleation sampling hut and the negative pressure sampling hut of mutual isolation; described differential pressure pickup is provided with the outer signal connecting line; below described housing, be provided with the fluid pressure vessel and just link to each other; negative pressure pipe; the described pressure pipe of officiallying enroll is connected with described malleation sampling hut; described negative pressure pipe is connected with described negative pressure sampling hut; just described; be equipped with the constant temperature generator in the negative pressure pipe, just described; be provided with the constant temperature protective seam in the negative pressure sampling hut.
In described malleation sampling hut, be provided with the pressure compensation generator.
The utlity model has positive effect: of the present utility model simple in structure, in positive and negative pressure pipe, be equipped with the constant temperature generator; and be provided with the constant temperature protective seam in the positive and negative pressure sampling hut; make positive and negative pressure sampling indoor temperature remain at steady state; avoided the Yin Wendu difference and made differential pressure pickup error occur detecting; effectively reduced the possibility of sampling error, improved and become the validity of sending data.
Description of drawings
Content of the present utility model is easier clearly to be understood in order to make, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is structural representation of the present utility model.
See Fig. 1; a kind of NEW TYPE OF COMPOSITE flow transmitter; comprise the housing 1 and the differential pressure pickup 2 that are provided with sampling cavity; described differential pressure pickup 2 is divided into sampling cavity malleation sampling hut 3 and the negative pressure sampling hut 4 of mutual isolation; described differential pressure pickup 2 is provided with outer signal connecting line 5; below described housing 1, be provided with the fluid pressure vessel and just link to each other; negative pressure pipe 6; 7; the described pressure pipe 6 of officiallying enroll is connected with described malleation sampling hut 3; described negative pressure pipe 7 is connected with described negative pressure sampling hut 4; just described; negative pressure pipe 6; be equipped with constant temperature generator 8 in 7, just described; negative pressure sampling hut 3; be provided with constant temperature protective seam 9 in 4.
3 are provided with pressure compensation generator 10 in described malleation sampling hut.
In positive and negative pressure pipe, be equipped with the constant temperature generator; and be provided with the constant temperature protective seam in the positive and negative pressure sampling hut; make positive and negative pressure sampling indoor temperature remain at steady state; avoided the Yin Wendu difference and made differential pressure pickup error occur detecting; effectively reduced the possibility of sampling error, improved and become the validity of sending data.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (2)
1. NEW TYPE OF COMPOSITE flow transmitter; comprise the housing and the differential pressure pickup that are provided with sampling cavity; described differential pressure pickup is divided into sampling cavity malleation sampling hut and the negative pressure sampling hut of mutual isolation; described differential pressure pickup is provided with the outer signal connecting line; below described housing, be provided with the fluid pressure vessel and just link to each other; negative pressure pipe; the described pressure pipe of officiallying enroll is connected with described malleation sampling hut; described negative pressure pipe is connected with described negative pressure sampling hut; it is characterized in that: just described; be equipped with the constant temperature generator in the negative pressure pipe, just described; be provided with the constant temperature protective seam in the negative pressure sampling hut.
2. NEW TYPE OF COMPOSITE flow transmitter according to claim 1 is characterized in that: be provided with the pressure compensation generator in described malleation sampling hut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054503 CN203037299U (en) | 2013-01-19 | 2013-01-19 | Novel type composite flow transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054503 CN203037299U (en) | 2013-01-19 | 2013-01-19 | Novel type composite flow transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037299U true CN203037299U (en) | 2013-07-03 |
Family
ID=48689411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054503 Expired - Fee Related CN203037299U (en) | 2013-01-19 | 2013-01-19 | Novel type composite flow transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037299U (en) |
-
2013
- 2013-01-19 CN CN 201320054503 patent/CN203037299U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012047998A3 (en) | Industrial process transmitter with high static pressure isolation diaphragm coupling | |
| JP2017508977A (en) | Process variable transmitter with process variable sensor introduced by process gasket | |
| CN103292947B (en) | A kind of capacitor plate suspension structure of differential metal capacitance membrane box | |
| BR112016006471A2 (en) | multi-variable process fluid transmitter module | |
| CN205225245U (en) | Under high temperature and high pressure environment along with boring temperature measurement nipple joint | |
| CN203037299U (en) | Novel type composite flow transmitter | |
| CN203856470U (en) | Submersible underground temperature and pressure measurement device | |
| CN202578663U (en) | Oilfield down-hole multi-parameter measurement system | |
| CN103344784B (en) | Temperature control type magnetic liquid acceleration sensor | |
| CN204269283U (en) | A kind of based on two SOI pressure core high temperature difference pressure sensor structure | |
| CN204043725U (en) | Novel all-in-one self-heat conserving flow system | |
| CN203503152U (en) | Wireless pressure sensor | |
| CN207423445U (en) | A kind of device to differential pressure pick-up correction | |
| CN201421342Y (en) | Temperature-compensated composite flow transmitter | |
| CN203837866U (en) | Multi-seal type pressure sensor | |
| CN202903285U (en) | High-temperature-resistant liquid level transmitter | |
| CN205175473U (en) | Integrated intelligent inner cone type flow meter | |
| WO2011026765A3 (en) | Sensor and sensor network and method for the operation thereof | |
| CN201421341Y (en) | Pressure-compensated composite flow transmitter | |
| CN210775412U (en) | Pipeline type multi-gas transmitter | |
| CN206018120U (en) | External pressure straight-tube pressure balanced compensator with warning device | |
| CN101532856A (en) | Pressure-compensated composite flow transmitter | |
| CN203848971U (en) | Fluid pressure sensor having pressure transmitter function | |
| CN203880406U (en) | Internally-arranged infrasonic wave sensor of pipeline | |
| CN205449373U (en) | Binary channels pressure differential sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20140119 |