CN203335362U - Pipeline connecting structure of refrigerating vacuum pump - Google Patents
Pipeline connecting structure of refrigerating vacuum pump Download PDFInfo
- Publication number
- CN203335362U CN203335362U CN2013202771211U CN201320277121U CN203335362U CN 203335362 U CN203335362 U CN 203335362U CN 2013202771211 U CN2013202771211 U CN 2013202771211U CN 201320277121 U CN201320277121 U CN 201320277121U CN 203335362 U CN203335362 U CN 203335362U
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- refrigerating
- connecting structure
- pipeline connecting
- refrigerating system
- 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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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to a pipeline connecting structure of a refrigerating vacuum pump, and belongs to the technical field of repairing and manufacturing of ships. The pipeline connecting structure of the refrigerating vacuum pump comprises a refrigerating system and a vacuum pump, wherein an electromagnetic valve and a one-way valve are sequentially arranged between the vacuum pump and the refrigerating system. The pipeline connecting structure of the refrigerating vacuum pump will not make exterior atmosphere air enter the refrigerating vacuum system after making the vacuum pump stop rotating, and the on-duty time can further be shortened, so that the purposes of saving energy and improving working efficiency are achieved.
Description
Technical field
The utility model relates to a kind of refrigeration vacuum pump pipeline linkage structure, belongs to and builds the ship technical field.
Background technique
Marine air conditioning, refrigerating system vacuumize and need the long period with vacuum pump, in vacuum, we had people's nurse vacuum pump on duty working order in the past, just in case vacuum pump stall (outage or pump heating overload), the atmosphere Air pours in down a chimney into refrigerating system higher than refrigerating system because of pressure, the work of vacuumizing must be done again from the beginning, not only time-consuming but also take electric.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of refrigeration vacuum pump pipeline linkage structure is provided, and it can make or not outside atmosphere enter the refrigeration vacuum system after the vacuum pump stall, can reduce again the watch time to reach purpose energy-conservation and the raising work efficiency.
The purpose of this utility model is achieved in that a kind of refrigeration vacuum pump pipeline linkage structure, and it comprises refrigerating system and vacuum pump, is disposed with solenoid valve and one-way valve between described vacuum pump and refrigerating system.
Compared with prior art, the utlity model has following beneficial effect:
A kind of refrigeration vacuum pump pipeline of the utility model linkage structure, it can make or not outside atmosphere enter the refrigeration vacuum system after the vacuum pump stall, can reduce again the watch time to reach purpose energy-conservation and the raising work efficiency.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of existing refrigeration vacuum pump pipeline linkage structure.
Fig. 2 is a kind of schematic diagram that refrigerates the vacuum pump pipeline linkage structure of the utility model.
Fig. 3 is a kind of electric control theory figure that refrigerates the vacuum pump pipeline linkage structure of the utility model.
Embodiment
Referring to Fig. 2, Fig. 3, a kind of refrigeration vacuum pump pipeline of the utility model linkage structure, it comprises refrigerating system and vacuum pump, is disposed with solenoid valve and one-way valve between described vacuum pump and refrigerating system.
Working principle:
Start button QA is pressed in energising, and ac contactor coil KM obtains electric, A.C. contactor normally opened contact KM1, KM2, KM3 closure, and vacuum pump work, while solenoid valve DF coil obtains electric, and valve core of the electromagnetic valve is opened, and starts to vacuumize to refrigerating system; When the power supply accident power-off, A.C. contactor KM dead electricity, KM1, KM2, KM3 contact disconnect, and vacuum pump M and electromagnetic valve coil be dead electricity simultaneously, and valve core of the electromagnetic valve is closed and is cut off vacuum pump and refrigerating system gas circuit; When the overheated overcurrent of vacuum pump, thermorelay RJ contact disconnects, A.C. contactor KM coil losing electricity, and KM1, KM2, KM3 contact open circuit, vacuum pump and electromagnetic valve coil dead electricity, cut off vacuum pump and refrigerating system gas circuit; For safety, after fault is got rid of, vacuum pump, solenoid valve can not start voluntarily, again, after operation start button QA, can put into operation.
Claims (1)
1. one kind refrigerates the vacuum pump pipeline linkage structure, and it is characterized in that: it comprises refrigerating system and vacuum pump, is disposed with solenoid valve and one-way valve between described vacuum pump and refrigerating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202771211U CN203335362U (en) | 2013-05-21 | 2013-05-21 | Pipeline connecting structure of refrigerating vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202771211U CN203335362U (en) | 2013-05-21 | 2013-05-21 | Pipeline connecting structure of refrigerating vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335362U true CN203335362U (en) | 2013-12-11 |
Family
ID=49704039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202771211U Expired - Fee Related CN203335362U (en) | 2013-05-21 | 2013-05-21 | Pipeline connecting structure of refrigerating vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335362U (en) |
-
2013
- 2013-05-21 CN CN2013202771211U patent/CN203335362U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140521 |