CN201421341Y - Pressure-compensated composite flow transmitter - Google Patents
Pressure-compensated composite flow transmitter Download PDFInfo
- Publication number
- CN201421341Y CN201421341Y CN2009200210108U CN200920021010U CN201421341Y CN 201421341 Y CN201421341 Y CN 201421341Y CN 2009200210108 U CN2009200210108 U CN 2009200210108U CN 200920021010 U CN200920021010 U CN 200920021010U CN 201421341 Y CN201421341 Y CN 201421341Y
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- Prior art keywords
- pressure
- transmitter
- tapping
- chamber
- fluid
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure-compensated composite flow transmitter, which relates to a flowmeter. A pressure-tapping chamber is arranged in a transmitter shell, a capsule type differentialpressure sensor is arranged in the pressure-tapping chamber, a positive pressure-tapping chamber and a negative pressure-tapping chamber are respectively positioned at both sides of the capsule type differential pressure sensor, a positive pressure-tapping tube is arranged under the positive pressure-tapping chamber, a negative pressure-tapping tube is arranged under the negative pressure-tappingchamber, the positive pressure-tapping tube and the negative pressure-tapping tube are connected with a fluid pressure-tapping unit, the capsule type differential pressure sensor is connected with a meter through a signal wire, and the pressure-tapping chamber is provided with a pressure-compensated transmitter, which is connected with the meter through a signal wire. The utility model can measurethe pressure difference and pressure of fluid at the same time and directly output the standard volume flow and saturation mass flow of fluid; when the saturation mass flow is measured, a pipeline does not need to be holed in order to mount an additional pressure transmitter; and the utility model has the advantages of easy mounting, time and labor saving, few pipeline leakage points, high safetyand low cost, and is applicable to the measurement of the volume flow and saturation mass flow of fluid.
Description
Technical field
The present invention relates to flowmeter, say it is a kind of pressure-compensated composite flow transmitter in detail.
Background technology
We know, existing flow transmitter, be in the transmitter housing, to be provided with the pressure chamber, the indoor bellows-type differential pressure pick-up that is provided with of pressure, bellows-type differential pressure pick-up both sides are respectively positive pressure chamber and negative pressure chamber, and below, positive pressure chamber is provided with the pressure pipe of officiallying enroll, and below, negative pressure chamber is provided with negative pressure pipe, the pressure pipe of officiallying enroll is connected with the fluid pressure obtaning device with negative pressure pipe, and the bellows-type differential pressure pick-up is connected with instrument through signal wire.This flow transmitter is owing to be provided with the pressure chamber, the indoor bellows-type differential pressure pick-up that is provided with of pressure in the transmitter housing, bellows-type differential pressure pick-up both sides are respectively positive pressure chamber and negative pressure chamber, and pressure is single, no pressure compensation effect, can only measure the volumetric flow rate of fluid, when measuring the saturated mass rate of fluid, also need be on pipeline the other setting pressure compensation of perforate transmitter, carrying out the hydrodynamic pressure compensation calculates, trouble is installed, wastes time and energy, pipe leakage point is many, poor stability, the cost height.
Summary of the invention
The technical matters that the present invention solves is, when solve measuring the saturated mass rate of fluid, also need on pipeline, compensate transmitter by the other setting pressure of perforate, carrying out the hydrodynamic pressure compensation calculates, trouble is installed, waste time and energy, pipe leakage point is many, poor stability, the problem that cost is high, when a kind of saturated mass rate of measuring fluid is provided, need be on pipeline the other setting pressure transmitter of perforate, simple installation, time saving and energy saving, pipe leakage point is few, and is safe, the pressure-compensated composite flow transmitter that cost is low.
Technical scheme of the present invention is, be provided with the pressure chamber in the transmitter housing, the indoor bellows-type differential pressure pick-up that is provided with of pressure, bellows-type differential pressure pick-up both sides are respectively positive pressure chamber and negative pressure chamber, below, positive pressure chamber is provided with the pressure pipe of officiallying enroll, below, negative pressure chamber is provided with negative pressure pipe, the pressure pipe of officiallying enroll is connected with the fluid pressure obtaning device with negative pressure pipe, the bellows-type differential pressure pick-up is connected with instrument through signal wire, the primary structure characteristics are, the pressure chamber is provided with the pressure compensation transmitter, and the pressure compensation transmitter is connected with instrument through signal wire.
Pressure compensation transmitter of the present invention is arranged on positive pressure outside.
It is indoor that pressure compensation transmitter of the present invention is arranged on positive pressure.
Pressure compensation transmitter of the present invention is a bellows pressure sensor.
The invention has the beneficial effects as follows, because the pressure chamber is provided with the pressure compensation transmitter, can measure pressure reduction, the pressure of fluid simultaneously, can directly export the standard volume flow and the saturated mass rate of fluid, when measuring the saturated mass rate of fluid, need be on pipeline the other setting pressure transmitter of perforate, simple installation, time saving and energy saving, pipe leakage point is few, safe, cost is low.The present invention is applicable to volumetric flow rate and the saturated mass rate of measuring fluid.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention, also is the synoptic diagram of a kind of embodiment.
Fig. 2 is another structural representation of the present invention, also is the synoptic diagram of a kind of embodiment.
Embodiment
Embodiment 1:
Pressure-compensated composite flow transmitter as shown in Figure 1, be provided with the pressure chamber in the transmitter housing 2, the indoor bellows-type differential pressure pick-up 8 that is provided with of pressure, bellows-type differential pressure pick-up 8 both sides are respectively positive pressure chamber 3 and negative pressure chamber 9, positive 3 belows, pressure chamber are provided with the pressure pipe 1 of officiallying enroll, negative 9 belows, pressure chamber are provided with negative pressure pipe 10, and the pressure pipe of officiallying enroll 1 is connected with the fluid pressure obtaning device with negative pressure pipe 10, obtains the normal pressure and the negative pressure of fluid.Bellows-type differential pressure pick-up 8 is connected with instrument through signal wire 7, calculates the volumetric flow rate of fluid.The pressure chamber is provided with pressure compensation transmitter 4, pressure compensation transmitter 4 is arranged on the pressure outside, and as can be seen from the figure, pressure compensation transmitter 4 is arranged on 3 outsides, positive pressure chamber, be connected with positive pressure chamber 3 through intercommunicating pore 5, pressure compensation transmitter 4 is connected with instrument through signal wire 6.As can be seen from the figure, pressure compensation transmitter 4 is bellows pressure sensors, can measure pressure reduction, the pressure of fluid simultaneously, can directly export the standard volume flow and the saturated mass rate of fluid, when measuring saturated mass rate, need be on pipeline the other setting pressure transmitter of perforate, simple installation, time saving and energy saving, pipe leakage point is few, safe, cost is low.
Embodiment 2:
Pressure-compensated composite flow transmitter as shown in Figure 2, be provided with the pressure chamber in the transmitter housing 2, the indoor bellows-type differential pressure pick-up 8 that is provided with of pressure, bellows-type differential pressure pick-up 8 both sides are respectively positive pressure chamber 3 and negative pressure chamber 9, positive 3 belows, pressure chamber are provided with the pressure pipe 1 of officiallying enroll, negative 9 belows, pressure chamber are provided with negative pressure pipe 10, and the pressure pipe of officiallying enroll 1 is connected with the fluid pressure obtaning device with negative pressure pipe 10, obtains the normal pressure and the negative pressure of fluid.Bellows-type fluid differential pressure sensor 8 is connected with instrument through signal wire 7, calculates the volumetric flow rate of fluid.The pressure chamber is provided with pressure compensation transmitter 4, it is indoor that pressure compensation transmitter 4 is arranged on pressure, and as can be seen from the figure, pressure compensation transmitter 4 is arranged in the positive pressure chamber 3, be connected with positive pressure chamber 3, pressure compensation transmitter 4 is connected with instrument through signal wire 6.As can be seen from the figure, pressure compensation transmitter 4 is bellows pressure sensors, can measure pressure reduction, the pressure of fluid simultaneously, can directly export the standard volume flow and the saturated mass rate of fluid, when measuring the saturated mass rate of fluid, need be on pipeline the other setting pressure transmitter of perforate, simple installation, time saving and energy saving, pipe leakage point is few, safe, cost is low.
Claims (4)
1, a kind of pressure-compensated composite flow transmitter, be provided with the pressure chamber in the transmitter housing, the indoor bellows-type differential pressure pick-up that is provided with of pressure, bellows-type differential pressure pick-up both sides are respectively positive pressure chamber and negative pressure chamber, below, positive pressure chamber is provided with the pressure pipe of officiallying enroll, below, negative pressure chamber is provided with negative pressure pipe, the pressure pipe of officiallying enroll is connected with the fluid pressure obtaning device with negative pressure pipe, the bellows-type differential pressure pick-up is connected with instrument through signal wire, it is characterized in that: the pressure chamber is provided with the pressure compensation transmitter, and the pressure compensation transmitter is connected with instrument through signal wire.
2, pressure-compensated composite flow transmitter according to claim 1 is characterized in that: said pressure compensation transmitter is arranged on positive pressure outside.
3, pressure-compensated composite flow transmitter according to claim 1 is characterized in that: it is indoor that said pressure compensation transmitter is arranged on positive pressure.
4, according to claim 1 or 2 or 3 described pressure-compensated composite flow transmitters, it is characterized in that: said pressure compensation transmitter is a bellows pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200210108U CN201421341Y (en) | 2009-04-10 | 2009-04-10 | Pressure-compensated composite flow transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200210108U CN201421341Y (en) | 2009-04-10 | 2009-04-10 | Pressure-compensated composite flow transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421341Y true CN201421341Y (en) | 2010-03-10 |
Family
ID=41808001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200210108U Expired - Fee Related CN201421341Y (en) | 2009-04-10 | 2009-04-10 | Pressure-compensated composite flow transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201421341Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768529A (en) * | 2012-08-06 | 2012-11-07 | 北京雪迪龙科技股份有限公司 | Volume flow correction method for mass flow controller |
-
2009
- 2009-04-10 CN CN2009200210108U patent/CN201421341Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768529A (en) * | 2012-08-06 | 2012-11-07 | 北京雪迪龙科技股份有限公司 | Volume flow correction method for mass flow controller |
| CN102768529B (en) * | 2012-08-06 | 2014-08-13 | 北京雪迪龙科技股份有限公司 | Volume flow correction method for mass flow controller |
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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: 20100310 Termination date: 20100410 |