CN204404619U - A kind of barrel pump for refrigeration plant - Google Patents
A kind of barrel pump for refrigeration plant Download PDFInfo
- Publication number
- CN204404619U CN204404619U CN201520007971.9U CN201520007971U CN204404619U CN 204404619 U CN204404619 U CN 204404619U CN 201520007971 U CN201520007971 U CN 201520007971U CN 204404619 U CN204404619 U CN 204404619U
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- China
- Prior art keywords
- drain pipe
- low pressure
- canned motor
- feed tube
- recycle bucket
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Abstract
The utility model discloses a kind of barrel pump for refrigeration plant, described barrel pump comprises low pressure recycle bucket, canned motor pump, pressure reduction relay, drain pipe, feed tube, forcing pipe, bypass and heat exchanger, the oil-out of described low pressure recycle bucket is connected with heat exchanger, described drain pipe is positioned at the below of low pressure recycle bucket, described canned motor pump is connected with low pressure recycle bucket by drain pipe, two interfaces of described pressure reduction relay are connected to the two ends of canned motor pump, described feed tube is positioned at low pressure recycle bucket, described feed tube is provided with joint before drain pipe, described forcing pipe is communicated with feed tube in joint, one end of described bypass and the pipeline communication between drain pipe and joint, the other end of bypass is communicated with canned motor pump.The barrel pump for refrigeration plant that the utility model provides can ensure the abundant heat exchange of rich oil liquid, prevents the liquid in drain pipe from occurring overstocked phenomenon because of blocking, the startup of canned motor pump provides stable pressure reduction.
Description
Technical field
The utility model relates to freezer equipment field, particularly relates to a kind of barrel pump for refrigeration plant.
Background technology
Along with using the barrel pump of freon more and more to use in refrigeration systems, its power savings advantages is also by increasing customer acceptance.Along with some problems have also appearred in the extensive utilization of the barrel pump using freon, such as: the startup due to canned motor pump needs stable pressure reduction, and existing barrel pump cannot provide stable pressure reduction, canned motor pump has been caused easily to damage; When blocking appears in liquid in drain pipe for various reasons, liquid all overstocks in drain pipe, and time length can cause refrigeration system to break down.
Utility model content
In view of current for the barrel pump above shortcomings of refrigeration plant, the barrel pump for refrigeration plant that the utility model provides a kind of prevents the liquid in drain pipe from occurring overstocked phenomenon because of blocking, the startup of canned motor pump provides stable pressure reduction.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of barrel pump for refrigeration plant, described barrel pump comprises low pressure recycle bucket, canned motor pump, pressure reduction relay, drain pipe, feed tube, forcing pipe, bypass and heat exchanger, the oil-out of described low pressure recycle bucket is connected with heat exchanger, described drain pipe is positioned at the below of low pressure recycle bucket, described canned motor pump is connected with low pressure recycle bucket by drain pipe, two interfaces of described pressure reduction relay are connected to the two ends of canned motor pump, described feed tube is positioned at low pressure recycle bucket, described feed tube is provided with joint before drain pipe, described forcing pipe is communicated with feed tube in joint, one end of described bypass and the pipeline communication between drain pipe and joint, the other end of bypass is communicated with canned motor pump.
According to an aspect of the present utility model, described barrel pump also comprises support and base plate, and described low pressure recycle bucket is fixed on base plate by support.
According to an aspect of the present utility model, described heat exchanger is plate type heat exchanger or finned tube exchanger or lamella heat exchanger.
The advantage that the utility model is implemented: because barrel pump of the present utility model comprises low pressure recycle bucket, canned motor pump, pressure reduction relay, drain pipe, feed tube, forcing pipe, bypass and heat exchanger, the oil-out of low pressure recycle bucket is connected with heat exchanger, drain pipe is positioned at the below of low pressure recycle bucket, canned motor pump is connected with low pressure recycle bucket by drain pipe, two interfaces of pressure reduction relay are connected to the two ends of canned motor pump, the startup that such pressure reduction relay is canned motor pump provides stable pressure reduction, avoids canned motor pump to damage, feed tube is positioned at low pressure recycle bucket, feed tube is provided with joint before drain pipe, forcing pipe is communicated with feed tube in joint, one end of bypass and the pipeline communication between drain pipe and joint, the other end of bypass is communicated with canned motor pump, like this when blocking appears in liquid in feed tube for various reasons, liquid in feed tube can be refluxed by bypass, prevent the liquid in feed tube from occurring overstocked phenomenon because of blocking, so the barrel pump for refrigeration plant of the present utility model can prevent the liquid in drain pipe from occurring overstocked phenomenon because of blocking, the startup of canned motor pump provides stable pressure reduction.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of barrel pump for refrigeration plant described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of barrel pump for refrigeration plant, described barrel pump comprises low pressure recycle bucket 3, canned motor pump 11, pressure reduction relay 8, drain pipe 7, feed tube 2, forcing pipe 4, bypass 9 and heat exchanger, the oil-out of low pressure recycle bucket 3 is connected with heat exchanger, drain pipe 7 is positioned at the below of low pressure recycle bucket 3, canned motor pump 11 is connected with low pressure recycle bucket 3 by drain pipe 7, two interfaces of pressure reduction relay 8 are connected to the two ends of canned motor pump 11, feed tube 2 is positioned at low pressure recycle bucket 3, feed tube 2 is provided with joint 10 before drain pipe 7, forcing pipe 4 is communicated with feed tube 2 at joint 10 place, one end of bypass 9 and the pipeline communication between drain pipe 7 and joint 10, the other end of bypass 9 is communicated with canned motor pump 11.
In actual applications, liquid in feed tube 2 generally selects rich oil liquid, liquid in reservoir is highly pressurised liquid, liquid in reservoir 6 generally selects freon liquid, in order to the abundant heat exchange of absolute guarantee's rich oil liquid, heat exchanger is provided with First Heat Exchanger 1 and the second heat exchanger 13, First Heat Exchanger 1 and the second heat exchanger 13 serial arrangement, the oil-out of low pressure recycle bucket 3 is connected with First Heat Exchanger 1, the top of First Heat Exchanger 1 by pipe and compressor 5 air intake duct connect, the side of First Heat Exchanger 1 is connected with reservoir 6, second heat exchanger 13 by pipe respectively with compressor 5 blast pipe, air intake duct is connected, first the rich oil liquid flowed out from low pressure recycle bucket 3 like this enter in First Heat Exchanger 1 and carry out first time heat exchange with the high pressure freon liquid from reservoir 6, now from the Freon liquid temperature of reservoir 6 higher than the rich oil temperature (temperature difference is generally at about 30 DEG C) of low pressure recycle bucket 3, due to the heat exchange between two kinds of liquid, so utilize the abundant contact advantage of First Heat Exchanger 1 to carry out augmentation of heat transfer, heating rich oil temperature on the one hand, improve the degree of supercooling of freon liquid on the other hand, cooled Freon gas gets back to Siphon pot, this has also shared the sub-load of condenser, improve the efficiency of barrel pump, after first time heat exchange, gain the rich oil liquid come from plate can again through the second heat exchanger 13, second time heat exchange is carried out here with the exhaust of compressor 5, this time heat exchange is the remarkable heat transfer between gas and liquid, the temperature-difference of delivery temperature and rich oil is maximum can reach more than 50 DEG C, under strong heat exchange like this, rich oil fluid temperature improves rapidly, the mobility of oil is stronger, the siphon principle of compressor air suction is utilized rapidly oil to be brought back to compressor, so just reach the object of oil return heat exchange, the practicality of barrel pump system is improved, ensure the security of operation of compressor 5.In addition, the heat exchanger one of generally to select in plate type heat exchanger, finned tube exchanger, lamella heat exchanger three of First Heat Exchanger 1 and the second heat exchanger 13.
In actual applications, barrel pump is provided with support 12, base plate and control cabinet, and low pressure recycle bucket 3 is fixed on base plate by support 12, is provided with the contactor of canned motor pump 11, the overload relay of canned motor pump 11 and the switch etc. of pressure reduction relay 8 in control cabinet.Two interfaces due to pressure reduction relay 8 are connected to the two ends of canned motor pump 11, and such pressure reduction relay 8 can provide canned motor pump 11 to start needs stable pressure reduction, prevents motor damage; Also have one end of bypass 9 and the pipeline communication between drain pipe 7 and joint 10, the other end of bypass 9 is communicated with canned motor pump 11, like this when blocking appears in liquid in feed tube 2 for various reasons, liquid in feed tube 2 can be refluxed by bypass 9, prevent the liquid in feed tube 2 from occurring overstocked phenomenon because of blocking, in addition, forcing pipe 4 is communicated with feed tube 2 at joint 10 place, and the air of compressor accelerates the flowing of the liquid in feed tube 2 by forcing pipe 4.
The benefit of the barrel pump for refrigeration plant described in the utility model: low pressure recycle bucket 3 of the present utility model, canned motor pump 11, pressure reduction relay 8, drain pipe 7, feed tube 2, forcing pipe 4, bypass 9 and heat exchanger, the oil-out of low pressure recycle bucket 3 is connected with heat exchanger, drain pipe 7 is positioned at the below of low pressure recycle bucket 3, canned motor pump 11 is connected with low pressure recycle bucket 3 by drain pipe 7, two interfaces of pressure reduction relay 8 are connected to the two ends of canned motor pump 11, the startup that such pressure reduction relay 8 is canned motor pump 11 provides stable pressure reduction, avoids canned motor pump 11 to damage, feed tube 2 is positioned at low pressure recycle bucket 3, feed tube 2 is provided with joint 10 before drain pipe 7, forcing pipe 4 is communicated with feed tube 2 at joint 10 place, one end of bypass 9 and the pipeline communication between drain pipe 7 and joint 10, the other end of bypass 9 is communicated with canned motor pump 11, like this when blocking appears in liquid in feed tube 2 for various reasons, liquid in feed tube 2 can be refluxed by bypass 9, prevent the liquid in feed tube 2 from occurring overstocked phenomenon because of blocking, so the barrel pump for refrigeration plant of the present utility model can prevent the liquid in drain pipe from occurring overstocked phenomenon because of blocking, the startup of canned motor pump provides stable pressure reduction.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; the technical staff of any skilled is in technical scope disclosed in the utility model; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (3)
1. the barrel pump for refrigeration plant, it is characterized in that: described barrel pump comprises low pressure recycle bucket, canned motor pump, pressure reduction relay, drain pipe, feed tube, forcing pipe, bypass and heat exchanger, the oil-out of described low pressure recycle bucket is connected with heat exchanger, described drain pipe is positioned at the below of low pressure recycle bucket, described canned motor pump is connected with low pressure recycle bucket by drain pipe, two interfaces of described pressure reduction relay are connected to the two ends of canned motor pump, described feed tube is positioned at low pressure recycle bucket, described feed tube is provided with joint before drain pipe, described forcing pipe is communicated with feed tube in joint, one end of described bypass and the pipeline communication between drain pipe and joint, the other end of bypass is communicated with canned motor pump.
2. according to the barrel pump for refrigeration plant according to claim 1, it is characterized in that: described barrel pump also comprises support and base plate, described low pressure recycle bucket is fixed on base plate by support.
3. according to the barrel pump for refrigeration plant described in claim 1 or 2, it is characterized in that: described heat exchanger is plate type heat exchanger or finned tube exchanger or lamella heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007971.9U CN204404619U (en) | 2015-01-06 | 2015-01-06 | A kind of barrel pump for refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007971.9U CN204404619U (en) | 2015-01-06 | 2015-01-06 | A kind of barrel pump for refrigeration plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204404619U true CN204404619U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007971.9U Active CN204404619U (en) | 2015-01-06 | 2015-01-06 | A kind of barrel pump for refrigeration plant |
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| Country | Link |
|---|---|
| CN (1) | CN204404619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186233A (en) * | 2019-06-03 | 2019-08-30 | 浙江盾安冷链系统有限公司 | CO2Refrigeration system |
-
2015
- 2015-01-06 CN CN201520007971.9U patent/CN204404619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186233A (en) * | 2019-06-03 | 2019-08-30 | 浙江盾安冷链系统有限公司 | CO2Refrigeration system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |