CN205236553U - Constant voltage sweeps device - Google Patents
Constant voltage sweeps device Download PDFInfo
- Publication number
- CN205236553U CN205236553U CN201520919021.3U CN201520919021U CN205236553U CN 205236553 U CN205236553 U CN 205236553U CN 201520919021 U CN201520919021 U CN 201520919021U CN 205236553 U CN205236553 U CN 205236553U
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- CN
- China
- Prior art keywords
- valve
- flow valve
- pressure
- utility
- constant voltage
- 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
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Abstract
The utility model discloses a constant voltage sweeps device, including the air supply, the constant flow valve, the flowmeter with the mouth sweeps, the air supply through the input pipeline with the constant flow valve is connected, be provided with the stop valve on the input pipeline, the stop valve with be provided with the relief pressure valve between the constant flow valve, sweep mouthful through output pipeline with the constant flow valve is connected, the last pressure transmitter that is provided with of output pipeline, pressure transmitter with it presses the mouth to be provided with between the output pipeline to get, the flowmeter pass through the current surveying pipeline with the constant flow valve is connected, the utility model has the advantages of sweep the pressure invariant, simple structure.
Description
Technical field
The utility model relates to blow device, relates in particular to a kind of constant voltage blow device.
Background technology
In the industries such as derived energy chemical, often need to carry out real-time control measurement to the pressure of various pipelines. Metering systemMostly be and directly draw a bypass measuring circuit from measurement point and carry out pressure measurement. If do not add safeguard procedures, so ducted ashDirt, powder etc. will pour in down a chimney in measuring circuit, stop up and measure mouth, can not get measured pressure value, lose real-time monitoring and control, veryTo damaging measuring instrument. For this reason, measurement mechanism need to configure a blow device measuring circuit is purged to protection. PurgeDevice directly connects source of the gas conventionally, uses gas to carry out continuously or purging work intermittently measuring circuit. This traditional purgingDevice narrow application range. In the time that pipeline pressure amplitude of variation is larger, flow is also more big changes, especially when pipeline pressure literHeight, when flow obviously reduces, purge gas may pour in down a chimney, and purges function and can not get ensureing. In addition, the variation of purge flow rate withAnd measure mouthful stopping state occurring, and all can cause measured value that larger deviation occurs, do not reach the required precision of measurement itself.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of purging of constant pressure is providedDevice.
A kind of constant voltage blow device, comprises source of the gas, permanent flow valve, and flowmeter and blow valve port, described source of the gas passes through input channelBe connected with described permanent flow valve, on described input channel, be provided with stop valve, between described stop valve and described permanent flow valve, be provided withPressure-reducing valve, described blow valve port is connected with described permanent flow valve by output channel, on described output channel, is provided with pressure transmitter,Between described pressure transmitter and described output channel, be provided with pressure tappings, described flowmeter is by flow measurement pipeline and described constant currentValve connects.
Further, described source of the gas is the adjustable air blast of watt level.
Compared with prior art, the utility model has the advantage of:
1, blow device of the present utility model is by permanent flow valve and flowmeter are set between source of the gas and blow valve port, in constant currentBetween valve and blow valve port, pressure transmitter is set, can keeps the blow pressure of blow valve port constant, the utility model also has simultaneouslySimple in structure, the advantage such as easy to use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
Shown in Fig. 1, a kind of constant voltage blow device, comprises source of the gas 1, permanent flow valve 11, and flowmeter 6 and blow valve port 7, whereinSource of the gas 1 is connected with permanent flow valve 11 by input channel 2, and is provided with stop valve 3 on input channel 2, in stop valve 3 and constant currentBetween valve 11, be provided with pressure-reducing valve 4, wherein blow valve port 7 is connected with permanent flow valve 11 by output channel 10, on output channel 10Be provided with pressure transmitter 8, and be provided with pressure tappings 9 between pressure transmitter 8 and output channel 10, and flowmeter 6 passes throughFlow measurement pipeline 5 is connected with permanent flow valve 11.
In the present embodiment, source of the gas 1 is the adjustable air blast of watt level.
The present embodiment, need to purge time, opens source of the gas 1, regulates permanent flow valve 11 by observing flowmeter 6, will purge pressureBe adjusted to and purge needed pressure, in purge, the pressure transmitter 8 being arranged on output channel 10 can be true for the second timePacking pressure is constant, and the utility model can not only keep constant voltage to purge, and simple in structure, easy to use.
Although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model. AnyThose of ordinary skill in the art, in the situation that not departing from technical solutions of the utility model scope, can utilize above-mentioned announcementTechnology contents technical solutions of the utility model are made to many possible variations and modification, or be revised as the equivalence of equivalent variationsEmbodiment. Therefore, every content that does not depart from technical solutions of the utility model, according to the utility model technical spirit to above realityExecute any simple modification, equivalent variations and modification that example is done, all should drop in the scope of technical solutions of the utility model protection.
Claims (2)
1. a constant voltage blow device, comprises source of the gas, permanent flow valve, and flowmeter and blow valve port, is characterized in that, described source of the gas passes throughInput channel is connected with described permanent flow valve, on described input channel, is provided with stop valve, described stop valve and described permanent flow valve itBetween be provided with pressure-reducing valve, described blow valve port is connected with described permanent flow valve by output channel, on described output channel, is provided with pressurePower transmitter, is provided with pressure tappings between described pressure transmitter and described output channel, and described flowmeter is by flow measurement pipelineBe connected with described permanent flow valve.
2. a kind of constant voltage blow device according to claim 1, is characterized in that, described source of the gas is that watt level is adjustableAir blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919021.3U CN205236553U (en) | 2015-11-18 | 2015-11-18 | Constant voltage sweeps device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919021.3U CN205236553U (en) | 2015-11-18 | 2015-11-18 | Constant voltage sweeps device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205236553U true CN205236553U (en) | 2016-05-18 |
Family
ID=55935632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520919021.3U Expired - Fee Related CN205236553U (en) | 2015-11-18 | 2015-11-18 | Constant voltage sweeps device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205236553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101215A (en) * | 2021-11-12 | 2022-03-01 | 仙鹤股份有限公司 | Online ash suction control system of paper machine |
-
2015
- 2015-11-18 CN CN201520919021.3U patent/CN205236553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101215A (en) * | 2021-11-12 | 2022-03-01 | 仙鹤股份有限公司 | Online ash suction control system of paper machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161118 |