CN204142299U - A kind of temperature and pressure compensation integral type differential pressure flowmeter - Google Patents
A kind of temperature and pressure compensation integral type differential pressure flowmeter Download PDFInfo
- Publication number
- CN204142299U CN204142299U CN201420549450.1U CN201420549450U CN204142299U CN 204142299 U CN204142299 U CN 204142299U CN 201420549450 U CN201420549450 U CN 201420549450U CN 204142299 U CN204142299 U CN 204142299U
- Authority
- CN
- China
- Prior art keywords
- pressure
- upstream
- pressure pipe
- downstream
- differential pressure
- 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.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of temperature and pressure compensation integral type differential pressure flowmeter, belong to flow measurement technology field.This flowmeter is arranged on fluid line, and fluid line is provided with restriction device, on fluid line, is provided with upstream pressure tappings in the upstream of restriction device, is provided with downstream pressure tappings in the downstream of restriction device.This differential pressure flowmeter comprises upstream pressure pipe, downstream pressure pipe, upstream first pressure pipe, upstream second pressure pipe, apparatus for detecting pressure, differential pressure transmitter, temperature detection device, threeway, the first stop valve and the second stop valve.Because this apparatus for detecting pressure is connected to upstream first pressure pipe end, this temperature detection device is installed on the supervisor of downstream pressure pipe, without the need to special on fluid line welding pressure pipe dress pressure unit, temperature transmitter.
Description
Technical field
The utility model relates to flow measurement technology field, is specifically related to a kind of temperature and pressure compensation integral type differential pressure flowmeter.
Background technology
Because differential pressure flowmeter exists plurality of advantages, be still the flowmeter be most widely used so far.But, along with the appearance of various new flowmeter in recent years, the market share of differential pressure flowmeter just progressively reduces, himself principle of work restricts its leading superiority in field of flow measurement, namely its flow measurement is by adding a restriction device in fluid line, fluid is made to produce differential pressure at restriction device place, the differential pressure value measuring restriction device is utilized to carry out the flow value of Fluid Computation, and the flow of fluid is by hydrodynamic pressure, the impact of temperature, thus for improving the accuracy of measuring, convection cell is just needed to carry out pressure, temperature survey, pass through temperature, pressure compensation, realize the Measurement accuracy of flow.Using the erecting stage of differential pressure flowmeter, not only needing restriction device is installed, also needing, at the front end of restriction device dress tensimeter, to install thermal resistance additional in the rear end of restriction device.This metering system exists in actual applications installs complexity, and cost is high, and erecting stage shows slightly chaotic.
Utility model content
In order to solve the problem, the utility model proposes a kind of temperature and pressure compensation integral type differential pressure flowmeter without the need to welding pressure pipe dress pressure unit special on fluid line, temperature transmitter.
The temperature and pressure compensation integral type differential pressure flowmeter that the utility model provides is arranged on fluid line, and described fluid line is provided with restriction device,
On described fluid line, be provided with upstream pressure tappings in the upstream of described restriction device, be provided with downstream pressure tappings in the downstream of described restriction device,
Described differential pressure flowmeter comprises upstream pressure pipe, downstream pressure pipe, upstream first pressure pipe, upstream second pressure pipe, apparatus for detecting pressure, differential pressure transmitter, temperature detection device, threeway, the first stop valve and the second stop valve;
Described upstream pressure pipe is connected to pressure tappings place, described upstream, the fluid flowing through described upstream pressure pipe is divided into two-way through described threeway, wherein a road flows through described upstream first pressure pipe, another road flows through upstream second pressure pipe, described upstream first pressure pipe end is connected to described apparatus for detecting pressure, and described upstream second pressure pipe end is connected to the plemum of described differential pressure transmitter;
Described downstream pressure pipe comprises supervisor and is responsible for described the arm be communicated with, described supervisor is connected to pressure tappings place, described downstream, described temperature detection device is installed on described supervisor, for measuring the temperature at pressure tappings place, described downstream, the end of described arm is connected to the negative pressure chamber of described differential pressure transmitter;
Described upstream pressure pipe is provided with described first stop valve, and described arm is provided with the second stop valve.
As preferably, described apparatus for detecting pressure is pressure unit.
As preferably, described temperature detection device is temperature transmitter.
As preferably, described supervisor is arranged perpendicular to described fluid line.
As preferably, described differential pressure flowmeter also comprises integrating instrument, and the numerical value detected separately is delivered to described integrating instrument by described apparatus for detecting pressure, differential pressure transmitter and temperature detection device respectively.
The temperature and pressure compensation integral type differential pressure flowmeter that the utility model provides is connected with apparatus for detecting pressure at upstream first pressure pipe end, the pressure in the pressure pipe of upstream can be measured, pressure tappings place, downstream is provided with temperature detection device, the temperature at pressure tappings place, downstream can be measured, because this apparatus for detecting pressure is connected to upstream first pressure pipe end, this temperature detection device is installed on the supervisor of downstream pressure pipe, without the need to special on fluid line welding pressure pipe dress pressure unit, temperature transmitter.
Accompanying drawing explanation
The structural representation of the temperature and pressure compensation integral type differential pressure flowmeter that Fig. 1 provides for the utility model embodiment one;
The structural representation of the temperature and pressure compensation integral type differential pressure flowmeter that Fig. 2 provides for the utility model embodiment two.
Embodiment
In order to understand the utility model in depth, below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Embodiment one
See accompanying drawing 1, the temperature and pressure compensation integral type differential pressure flowmeter that the utility model embodiment one provides is arranged on fluid line 1, and fluid line 1 is provided with restriction device 3, and sequence number 2 arrow represents the direction of flow in fluid line 1.On fluid line 1, be provided with upstream pressure tappings 4 in the upstream of restriction device 3, be provided with downstream pressure tappings 5 in the downstream of restriction device 3.This differential pressure flowmeter comprises upstream pressure pipe 6, downstream pressure pipe (arm 7 comprising supervisor 17 and be communicated with supervisor 17), upstream first pressure pipe 11, upstream second pressure pipe 12, apparatus for detecting pressure 13, differential pressure transmitter 14, temperature detection device 15, threeway 10, first stop valve 8 and the second stop valve 9.Upstream pressure pipe 6 is connected to upstream pressure tappings 4 place, the fluid flowing through upstream pressure pipe 6 is divided into two-way through threeway 10, wherein a road flows through upstream first pressure pipe 11, another road flows through upstream second pressure pipe 12, upstream first pressure pipe 11 end is connected to apparatus for detecting pressure 13, and upstream second pressure pipe 12 end is connected to the plemum of differential pressure transmitter 14.The arm 7 that downstream pressure pipe comprises supervisor 17 and is communicated with supervisor 17, supervisor 17 is connected to downstream pressure tappings 5 place, temperature detection device 15 is installed on supervisor 17, and for measuring the temperature at downstream pressure tappings 5 place, the end of arm 7 is connected to the negative pressure chamber of differential pressure transmitter 14.Upstream pressure pipe 6 is provided with the first stop valve 8, and arm 7 is provided with the second stop valve 9.
The temperature and pressure compensation integral type differential pressure flowmeter that the utility model provides is connected with apparatus for detecting pressure 13 at upstream first pressure pipe 11 end, because the fluid flowing through this first pressure pipe 11 can be dammed by this apparatus for detecting pressure 13, therefore, the hydrodynamic pressure of this first pressure pipe 11 end is equal with the hydrodynamic pressure in this upstream pressure pipe 6, therefore, this apparatus for detecting pressure 13 can measure the pressure in upstream pressure pipe 6, downstream pressure tappings 6 place is provided with temperature detection device 15, the temperature at downstream pressure tappings 5 place can be measured, wherein, the contact 16 of this temperature detection device 15 maintains an equal level with the position of the upper wall of fluid line 1, this temperature detection device 16 can be made like this to measure the temperature value of fluid line 1 inner fluid obtained more accurate.Because this apparatus for detecting pressure 13 is connected to upstream first pressure pipe 11 end, this temperature detection device 15 is installed on the supervisor 17 of downstream pressure pipe, without the need to special on fluid line 1 welding pressure pipe dress pressure unit, temperature transmitter.
Wherein, as a kind of concrete implementation of apparatus for detecting pressure 13, apparatus for detecting pressure 13 is pressure units, can adapt to the interior fluid-phase flowed of fluid line 1.
Wherein, as a kind of concrete implementation of temperature detection device 15, temperature detection device 15 is temperature transmitters, can adapt to the interior fluid-phase flowed of fluid line 1.
Wherein, supervisor 17 is arranged perpendicular to fluid line 1, now, because apparatus for detecting pressure 13 is installed on supervisor 17, apparatus for detecting pressure 13 is also perpendicular to fluid line 1, and because the flow disturbance effect in this supervisor 17 convection cell pipeline 1 is less, the temperature value recorded is more accurate.
Embodiment two
See accompanying drawing 2, the difference of the differential pressure flowmeter that the utility model embodiment two provides and the differential pressure flowmeter that the utility model embodiment one provides is, the differential pressure flowmeter that the utility model embodiment two provides also comprises integrating instrument, the numerical value detected separately is delivered to integrating instrument by apparatus for detecting pressure, differential pressure transmitter and temperature detection device respectively, now, calculate without the need to the artificial data to apparatus for detecting pressure, differential pressure transmitter and temperature detection device, this integrating instrument and exportable result of calculation.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a temperature and pressure compensation integral type differential pressure flowmeter, is arranged on fluid line, and described fluid line is provided with restriction device,
On described fluid line, be provided with upstream pressure tappings in the upstream of described restriction device, be provided with downstream pressure tappings in the downstream of described restriction device,
It is characterized in that, described differential pressure flowmeter comprises upstream pressure pipe, downstream pressure pipe, upstream first pressure pipe, upstream second pressure pipe, apparatus for detecting pressure, differential pressure transmitter, temperature detection device, threeway, the first stop valve and the second stop valve;
Described upstream pressure pipe is connected to pressure tappings place, described upstream, the fluid flowing through described upstream pressure pipe is divided into two-way through described threeway, wherein a road flows through described upstream first pressure pipe, another road flows through upstream second pressure pipe, described upstream first pressure pipe end is connected to described apparatus for detecting pressure, and described upstream second pressure pipe end is connected to the plemum of described differential pressure transmitter;
Described downstream pressure pipe comprises supervisor and is responsible for described the arm be communicated with, described supervisor is connected to pressure tappings place, described downstream, described temperature detection device is installed on described supervisor, for measuring the temperature at pressure tappings place, described downstream, the end of described arm is connected to the negative pressure chamber of described differential pressure transmitter;
Described upstream pressure pipe is provided with described first stop valve, and described arm is provided with the second stop valve.
2. differential pressure flowmeter according to claim 1, is characterized in that, described apparatus for detecting pressure is pressure unit.
3. differential pressure flowmeter according to claim 1, is characterized in that, described temperature detection device is temperature transmitter.
4. differential pressure flowmeter according to claim 3, is characterized in that, described supervisor is arranged perpendicular to described fluid line.
5. differential pressure flowmeter according to claim 1, is characterized in that, also comprises integrating instrument, and the numerical value detected separately is delivered to described integrating instrument by described apparatus for detecting pressure, differential pressure transmitter and temperature detection device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549450.1U CN204142299U (en) | 2014-09-23 | 2014-09-23 | A kind of temperature and pressure compensation integral type differential pressure flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549450.1U CN204142299U (en) | 2014-09-23 | 2014-09-23 | A kind of temperature and pressure compensation integral type differential pressure flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142299U true CN204142299U (en) | 2015-02-04 |
Family
ID=52418980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420549450.1U Active CN204142299U (en) | 2014-09-23 | 2014-09-23 | A kind of temperature and pressure compensation integral type differential pressure flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319891A (en) * | 2019-07-10 | 2019-10-11 | 上海五零盛同信息科技有限公司 | A kind of high-precision wide-range integrated differential pressure type flow meter |
| CN110578846A (en) * | 2018-06-11 | 2019-12-17 | 上海孚凌自动化控制系统有限公司 | Gas distributor |
-
2014
- 2014-09-23 CN CN201420549450.1U patent/CN204142299U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578846A (en) * | 2018-06-11 | 2019-12-17 | 上海孚凌自动化控制系统有限公司 | Gas distributor |
| CN110319891A (en) * | 2019-07-10 | 2019-10-11 | 上海五零盛同信息科技有限公司 | A kind of high-precision wide-range integrated differential pressure type flow meter |
| CN110319891B (en) * | 2019-07-10 | 2024-06-07 | 上海五零盛同信息科技有限公司 | High-precision wide-range integrated differential pressure type flow measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103808381B (en) | A kind of temperature influence eliminating method of transit-time ultrasonic flow meter | |
| MY168820A (en) | Nuclear magnetic flow meter and method for operation of nuclear magnetic flow meters with an additional measuring device operating on a different principle | |
| CN202281632U (en) | Differential pressure type virtual flowmeter | |
| CN104316117A (en) | Flow measuring device | |
| CN204142299U (en) | A kind of temperature and pressure compensation integral type differential pressure flowmeter | |
| CN204007745U (en) | Pitot bar integrated mass flow meter | |
| CN204007804U (en) | Liquid flowmeter detects self-calibrating device online | |
| CN204594516U (en) | Pipeline section type mass flowmeter | |
| CN202720007U (en) | Two-way probe-type flow meter | |
| CN204439142U (en) | Low flow velocity, high precision pitot tube differential pressure flow sensor pressure head | |
| CN204479112U (en) | A kind of aviation pitot tube | |
| CN101251397A (en) | By-pass type pipeline flowmeter | |
| CN204085644U (en) | A kind of flow calibrating device | |
| CN204373728U (en) | Water level difference measuring self-recording device | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| Wang et al. | Study of transducer installation effects on ultrasonic flow metering using computational fluid dynamics | |
| CN104792376A (en) | Flow measurement device based on heat flux principle | |
| CN104776889A (en) | Temperature difference type flow measurement system | |
| CN103542896A (en) | Large diameter gas measuring meter | |
| CN204439143U (en) | A kind of low flow velocity, high precision pitot tube differential pressure flow sensor pressure head | |
| CN104280076A (en) | High-precision large-diameter vortex flowmeter | |
| CN204202658U (en) | One possesses caliber high-precision flowmeter | |
| CN204731019U (en) | Modularization fire valve equivalent length measurement mechanism | |
| CN103591987A (en) | Plastic tube rotor flow meter and measuring and installing method | |
| CN105181035A (en) | Bitobar flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |