CN201897485U - Flowmeter for circulation of 3-cyanopyridine pump - Google Patents
Flowmeter for circulation of 3-cyanopyridine pump Download PDFInfo
- Publication number
- CN201897485U CN201897485U CN 201020595600 CN201020595600U CN201897485U CN 201897485 U CN201897485 U CN 201897485U CN 201020595600 CN201020595600 CN 201020595600 CN 201020595600 U CN201020595600 U CN 201020595600U CN 201897485 U CN201897485 U CN 201897485U
- Authority
- CN
- China
- Prior art keywords
- flowmeter
- water supply
- pump
- supply pipe
- cyanopyridine
- 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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- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a flowmeter for circulation of a 3-cyanopyridine pump, which comprises a water supply pipe. A water supply pump is connected with a vaporizer via the water supply pipe, and a metal rotor flowmeter is mounted on the water supply pipe. The flowmeter is characterized in that a closed hollow tank is arranged on the water supply pipe between the vaporizer and the metal rotor flowmeter, and the bottom of the hollow tank is communicated with the water supply pipe through a bypass pipeline. The flowmeter has the advantages that due to the fact that the closed hollow tank is communicated with the water supply pipe between the vaporizer and the metal rotor flowmeter, the hollow tank absorbs recoil pressure when steam is subjected to recoiling, air in the hollow tank is compressed, impact to the metal rotor flowmeter is avoided, and then original pressure of the hollow tank is recovered after the pressure recoil is finished.
Description
Technical field
The utility model relates to a kind of flowmeter, particularly a kind of 3-cyanopyridine pump circulation flowmeter.
Background technology
The 3-cyanopyridine is the intermediate that is used to make medicine, food additives, feed addictive, agricultural chemicals etc.In the production technology of 3-cyanopyridine, give carburetor by water supplying pump, will water is vaporized into steam, be provided with the metallic rotator flowmeter between pump and the carburetor, so that carry out the control of discharge.Because carburetor causes recoil when producing steam, make metallic rotator flowmeter pointer rock and do not stop, and influences the testing result of flowmeter.
The utility model content
The technical problems to be solved in the utility model provides a kind of detection 3-cyanopyridine pump circulation accurately flowmeter.
For solving the problems of the technologies described above, the technical solution of the utility model is: flowmeter is used in a kind of 3-cyanopyridine pump circulation, comprises the feed pipe that connects make-up pump and carburetor, and the metallic rotator flowmeter is installed on feed pipe; Its innovative point is: be provided with the slack tank of a sealing on the feed pipe between carburetor and the metallic rotator flowmeter, this slack tank bottom is communicated with feed pipe by by-pass line.
Advantage of the present utility model is: by be communicated with the slack tank of sealing on the feed pipe between carburetor and the metallic rotator flowmeter, when the steam recoil occurring, absorb recoil pressure by slack tank, air is compressed in the slack tank, avoids the metallic rotator flowmeter is impacted.And after the end of recoil pressure, slack tank recovers original pressure.
Description of drawings
Accompanying drawing is the utility model 3-cyanopyridine pump circulation flowmeter structure synoptic diagram.
Embodiment
As shown in drawings, the utility model relates to a kind of detection 3-cyanopyridine pump circulation accurately and uses flowmeter, comprises water pump 1, carburetor 2, feed pipe 3, metallic rotator flowmeter 4, by-pass line 5, slack tank 6.
Above-mentioned water pump 1 supplies water by 3 pairs of carburetors 2 of feed pipe, and metallic rotator flowmeter 4 is installed on the feed pipe 3 flow to water and monitors.Be provided with the slack tank 6 of a sealing on the feed pipe between carburetor 2 and the metallic rotator flowmeter 4, these slack tank 6 bottoms are communicated with feed pipe 3 by by-pass line 5.
When carburetor 2 water being vaporized when producing the steam recoil, absorb the recoil pressure by slack tank 6, air are compressed in the slack tank 6, avoid metallic rotator flowmeter 4 is impacted.And after the end of recoil pressure, slack tank recovers original pressure.
Claims (1)
1. flowmeter is used in a 3-cyanopyridine pump circulation, comprises the feed pipe that connects make-up pump and carburetor, and the metallic rotator flowmeter is installed on feed pipe; It is characterized in that: be provided with the slack tank of a sealing on the feed pipe between carburetor and the metallic rotator flowmeter, this slack tank bottom is communicated with feed pipe by by-pass line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020595600 CN201897485U (en) | 2010-11-08 | 2010-11-08 | Flowmeter for circulation of 3-cyanopyridine pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020595600 CN201897485U (en) | 2010-11-08 | 2010-11-08 | Flowmeter for circulation of 3-cyanopyridine pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897485U true CN201897485U (en) | 2011-07-13 |
Family
ID=44255391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020595600 Expired - Fee Related CN201897485U (en) | 2010-11-08 | 2010-11-08 | Flowmeter for circulation of 3-cyanopyridine pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897485U (en) |
-
2010
- 2010-11-08 CN CN 201020595600 patent/CN201897485U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20110713 Termination date: 20151108 |
|
| EXPY | Termination of patent right or utility model |