CN205383821U - Multi -functional maintenance dolly vacuum pumping system of refrigeration air conditioner - Google Patents
Multi -functional maintenance dolly vacuum pumping system of refrigeration air conditioner Download PDFInfo
- Publication number
- CN205383821U CN205383821U CN201521059470.1U CN201521059470U CN205383821U CN 205383821 U CN205383821 U CN 205383821U CN 201521059470 U CN201521059470 U CN 201521059470U CN 205383821 U CN205383821 U CN 205383821U
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- Prior art keywords
- compressor
- pressure controller
- air
- air bottle
- valve
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Abstract
The utility model discloses a multi -functional maintenance dolly vacuum pumping system of refrigeration air conditioner, including the compressor, the export pipeline of compressor connects the income gas port at an air bottle, is equipped with pressurizing valve on the air bottle, is equipped with gas storage valve on the pipeline between air bottle and compressor, is provided with the snifter valve on the entry of compressor, still include the circuit control system, the circuit control system include switch and the pressure controller who connects gradually with external power supply, the switch is established ties with pressure controller, pressure controller establishes on the air bottle, pressure controller's one end is connected with the compressor through thermal overload protector, the compressor is connected through the starter and pressure controller's the other end. This system can be better the protection compressor.
Description
Technical field
This utility model relates to the multi-functional maintenance trolley of refrigeration air-conditioner, particularly relates to pumped vacuum systems.
Background technology
Existing refrigerant recovering apparatus structure is complicated, and main spare and accessory parts are contained in shell, not intuitively, do not have pedagogical, is nearly all to realize the function such as single recovery cold-producing medium or filling cold-producing medium, uses trouble and expensive during maintenance refrigeration system.
For solving above-mentioned technical problem, at Chinese Patent Application No. be 201320561731.4 applyings date to be 2013.9.11 authorized announcement date be disclosed in the patent documentation of 2014.3.26 a kind of refrigerant recovering apparatus, including refrigerant-recovery bottle, it is connected to condenser with refrigerant-recovery bottle pipeline, condenser tubes is connected to the outlet of a compressor, the outlet conduit of compressor is connected to the air intake of an air bottle, refrigerant-recovery bottle is provided with the first fill valve, air bottle is provided with pressure controller and pressurizing valve, pipeline between refrigerant-recovery bottle and condenser is provided with recovery valve, pipeline between air bottle and compressor is provided with gas storage valve, the entrance of compressor is provided with inlet valve.
Above-mentioned refrigerant recovering apparatus set refrigerant-recovery, refrigeration oil discharge, purification filtering, evacuation, refrigerant charging, pressurization leakage detection, big bottle fill the function of bottle subpackage cold-producing medium, but compressor etc. can not better be protected by above-mentioned refrigerant recovering apparatus.
Summary of the invention
In order to better protect compressor, this utility model to provide a kind of multi-functional maintenance trolley pumped vacuum systems of cold-producing medium air-conditioning.
For reaching above-mentioned purpose, a kind of multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner, including compressor, the outlet conduit of compressor is connected to the air intake of an air bottle, pipeline between air bottle and compressor is provided with gas storage valve, the entrance of compressor is provided with inlet valve；Also include circuit control system; described circuit control system includes the switch and the pressure controller that are sequentially connected with external power supply; switch is connected with pressure controller; pressure controller is located on air bottle; one end of pressure controller is connected with compressor through overheat protector, and compressor is activated device and is connected with the other end of pressure controller.
Further, between compressor and air bottle, oil eliminator it is provided with.
Further, the pipeline between described compressor and described inlet valve is provided with filter by suction.
Further, described air bottle is provided with Pressure gauge, the entrance of described compressor is provided with vacuum meter.
Further, described air bottle is provided with draining needle-valve.
Further, described oil eliminator is provided with needle-valve of draining the oil.
The beneficial effects of the utility model are: owing to pressure controller is located on air bottle; and it is connected on circuit control system; when the pressure of air bottle exceedes the force value of setting, pressure controller disconnects, and compressor quits work; when the pressure of air bottle is lower than the force value set; pressure controller turn on automatically, compressor start, so; the frequent starting of compressor can be avoided, serve the effect of protection compressor.Owing to being provided with overheat protector, when overheat of compressor, overheat protector disconnects automatically, plays the effect of protection compressor.
Accompanying drawing explanation
Fig. 1 is the connection diagram of the multi-functional maintenance trolley of refrigeration air-conditioner.
Fig. 2 is the schematic diagram of circuit control system.
Fig. 3 is the schematic diagram of pumped vacuum systems.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is further elaborated.
As shown in Figure 1, the multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner includes compressor 3, compressor 3 is connected to oil eliminator 14, the pipeline of oil eliminator 14 is connected to the air intake of air bottle 4, air bottle 4 is provided with pressurizing valve 8, the pipeline between air bottle 4 and oil eliminator 14 is provided with gas storage valve 12.Described air bottle 4 is provided with Pressure gauge 19.Described air bottle 4 is provided with draining needle-valve 23.
The entrance of compressor 3 is provided with inlet valve 13.Pipeline between described compressor 3 and described inlet valve 13 is provided with filter by suction 15.The entrance of described compressor 3 is provided with vacuum meter 20.Described oil eliminator 14 is provided with needle-valve 18 of draining the oil.
As shown in Figure 2; also include circuit control system; described circuit control system includes the switch 41 and the pressure controller 7 that are sequentially connected with external power supply; switch 41 is connected with pressure controller 7; pressure controller 7 is located on air bottle 4; one end of pressure controller 7 is connected with compressor 3 through overheat protector 42, and compressor 3 is activated device 43 and is connected with the other end of pressure controller 7.
As shown in Figure 2 to Figure 3, corresponding Awaiting Overhaul equipment and the multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner can be connected by a threeway maintenance valve 24 and realize the function of evacuation, as shown in Figure 3, after first checking for the sealing whether desiccant of filter by suction changes and to check threeway maintenance valve 24, with the hose connection inlet valve 13 of threeway maintenance valve 24 and Awaiting Overhaul equipment 25 low pressure service valve 251, open inlet valve 13, start compressor 3 simultaneously, the then dry moisture of the both drying filters of the gas in Awaiting Overhaul equipment 25, sucked by compressor 3 after impurity screening, store then through entering after oil eliminator 14 and gas storage valve 12 in air bottle 4, and to observe vacuum meter 20 reading, until after vacuum requirement, stop compressor 3 to work, remove connecting tube and close each valve.
Owing to pressure controller is located on air bottle; and it is connected on circuit control system; when the pressure of air bottle exceedes the force value of setting, pressure controller disconnects, and compressor quits work; when the pressure of air bottle is lower than the force value set; pressure controller turn on automatically, compressor start, so; the frequent starting of compressor can be avoided, serve the effect of protection compressor.Owing to being provided with overheat protector, when overheat of compressor, overheat protector disconnects automatically, plays the effect of protection compressor.
Claims (6)
1.A kind of multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner, including compressor, the outlet conduit of compressor is connected to the air intake of an air bottle, and the pipeline between air bottle and compressor is provided with gas storage valve, and the entrance of compressor is provided with inlet valve；It is characterized in that: also include circuit control system; described circuit control system includes the switch and the pressure controller that are sequentially connected with external power supply; switch is connected with pressure controller; pressure controller is located on air bottle; one end of pressure controller is connected with compressor through overheat protector, and compressor is activated device and is connected with the other end of pressure controller.
2.The multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner according to claim 1, it is characterised in that: between compressor and air bottle, it is provided with oil eliminator.
3.The multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner according to any one of claim 1 to 2, it is characterised in that: the pipeline between described compressor and described inlet valve is provided with filter by suction.
4.The multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner according to claim 1, it is characterised in that: on described air bottle, it is provided with Pressure gauge, the entrance of described compressor is provided with vacuum meter.
5.The multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner according to claim 1, it is characterised in that: on described air bottle, it is provided with draining needle-valve.
6.The multi-functional maintenance trolley pumped vacuum systems of refrigeration air-conditioner according to claim 2, it is characterised in that: it is provided with, on described oil eliminator, needle-valve of draining the oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521059470.1U CN205383821U (en) | 2015-12-18 | 2015-12-18 | Multi -functional maintenance dolly vacuum pumping system of refrigeration air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521059470.1U CN205383821U (en) | 2015-12-18 | 2015-12-18 | Multi -functional maintenance dolly vacuum pumping system of refrigeration air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383821U true CN205383821U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521059470.1U Expired - Fee Related CN205383821U (en) | 2015-12-18 | 2015-12-18 | Multi -functional maintenance dolly vacuum pumping system of refrigeration air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909856A (en) * | 2022-04-24 | 2022-08-16 | 天津大学 | Refrigerating system capable of providing negative pressure function |
-
2015
- 2015-12-18 CN CN201521059470.1U patent/CN205383821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909856A (en) * | 2022-04-24 | 2022-08-16 | 天津大学 | Refrigerating system capable of providing negative pressure function |
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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: 20160713 Termination date: 20161218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |