CN203396144U - Integral semi-enclosed variable-frequency screw rod refrigerating unit - Google Patents
Integral semi-enclosed variable-frequency screw rod refrigerating unit Download PDFInfo
- Publication number
- CN203396144U CN203396144U CN201320369449.6U CN201320369449U CN203396144U CN 203396144 U CN203396144 U CN 203396144U CN 201320369449 U CN201320369449 U CN 201320369449U CN 203396144 U CN203396144 U CN 203396144U
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- China
- Prior art keywords
- fluorine
- ammonia
- heat exchanger
- screw rod
- evaporative condenser
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Abstract
The utility model discloses an integral semi-enclosed variable-frequency screw rod refrigerating unit. A carbon dioxide bucket pump unit, an electric control cabinet, a semi-enclosed ammonia/fluorine variable-frequency screw rod compressor unit, a liquid receiver and an evaporative condenser are arranged in sequence at the bottom of a container; a plate type heat exchanger is arranged obliquely above the electric control cabinet; the air outlet of the semi-enclosed ammonia/fluorine variable-frequency screw rod compressor unit is connected with the evaporative condenser; the evaporative condenser is connected with the liquid receiver; the liquid receiver is connected with an economizer of the semi-enclosed ammonia/fluorine variable-frequency screw rod compressor unit; the economizer is connected with the plate type heat exchanger through an expansion valve; the plate type heat exchanger is connected with the air return port of the semi-enclosed ammonia/fluorine variable-frequency screw rod compressor unit; the carbon dioxide bucket pump unit is connected with the plate type heat exchanger. The integral semi-enclosed variable-frequency screw rod refrigerating unit has the advantages of convenience in installation, moving flexibility, high refrigerating efficiency, prevention of leakage, no pollution, safety, reliability and lower cost.
Description
Technical field
The utility model relates to refrigeration technology field, relates in particular to the freezing unit of a kind of integral type semi-enclosed variable-frequency screw rod.
Background technology
The refrigeration system of the industries such as current domestic food, medicine, chemical industry, installs complexity, can not move flexibly, and refrigerating efficiency is low, easily leaks, and contaminative is large, dangerous high, and cost is higher.
Utility model content
The purpose of this utility model is to overcome above-mentioned not enough problem, provides a kind of integral type semi-enclosed variable-frequency screw rod freezing unit.
The technical scheme that the utility model adopted is for achieving the above object: the freezing unit of integral type semi-enclosed variable-frequency screw rod, comprise carbon dioxide barrel pump unit, plate type heat exchanger, container, evaporative condenser, liquid reservoir, semiclosed ammonia/fluorine inverter screw compressor group and electrical control cubicles, the bottom of described container is provided with carbon dioxide barrel pump unit successively, electrical control cubicles, semiclosed ammonia/fluorine inverter screw compressor group, liquid reservoir, evaporative condenser, the oblique upper of described electrical control cubicles is provided with plate type heat exchanger, the exhaust outlet of described semiclosed ammonia/fluorine inverter screw compressor group is connected with evaporative condenser, described evaporative condenser is connected with liquid reservoir, described liquid reservoir is connected with the economizer of semiclosed ammonia/fluorine inverter screw compressor group, described economizer is connected with plate type heat exchanger through expansion valve, described plate type heat exchanger is connected with the gas returning port of semiclosed ammonia/fluorine inverter screw compressor group, described carbon dioxide barrel pump unit is connected with plate type heat exchanger, the oil cooler of described semiclosed ammonia/fluorine inverter screw compressor group is connected with evaporative condenser, described carbon dioxide barrel pump unit is provided with feed pipe, muffler, described evaporative condenser is provided with overflow pipe, filling pipe, blow-off pipe.
On the inwall of described container, draft fan is installed.
The utility model is easy for installation, can move flexibly, and refrigerating efficiency is high, is difficult for leaking, pollution-free, safe and reliable, reduces costs.
Accompanying drawing explanation
Fig. 1 is the utility model front view;
Fig. 2 is the utility model top view.
Wherein: 1, carbon dioxide barrel pump unit 2, plate type heat exchanger 3, container 4, draft fan 5, evaporative condenser 6, overflow pipe 7, filling pipe 8, blow-off pipe 9, liquid reservoir 10, economizer 11, semiclosed ammonia/fluorine inverter screw compressor group 12, oil cooler 13, expansion valve 14, electrical control cubicles 15, feed pipe 16, muffler.
The specific embodiment
As Fig. 1, shown in Fig. 2, the freezing unit of integral type semi-enclosed variable-frequency screw rod, comprise carbon dioxide barrel pump unit 1, plate type heat exchanger 2, container 3, evaporative condenser 5, liquid reservoir 9, semiclosed ammonia/fluorine inverter screw compressor group 11 and electrical control cubicles 14, the bottom of described container 3 is provided with carbon dioxide barrel pump unit 1 successively, electrical control cubicles 14, semiclosed ammonia/fluorine inverter screw compressor group 11, liquid reservoir 9, evaporative condenser 5, the oblique upper of described electrical control cubicles 14 is provided with plate type heat exchanger 2, exhaust outlet ammonia excretion/the fluorine gas of described semiclosed ammonia/fluorine inverter screw compressor group 11 is to evaporative condenser 5, ammonia/fluorine liquid is from 5 times liquid of evaporative condenser to liquid reservoir 9, liquid reservoir 9 provides the economizer 10 of ammonia/fluorine liquid to semiclosed ammonia/fluorine inverter screw compressor group 11, carried out cold, cross ammonia/fluorine liquid after cold through expansion valve 13 to plate type heat exchanger 2, absorb the heat of the carbon dioxide of opposite side, ammonia/fluorine liquid is evaporated to the gas returning port of getting back to semiclosed ammonia/fluorine inverter screw compressor group 11 after ammonia/fluorine gas, described carbon dioxide barrel pump unit 1 row's carbon dioxide is to plate type heat exchanger 2, carry out heat exchange with ammonia/fluorine liquid of low temperature, after being condensed into carbon dioxide liquid by heat absorption, get back to again in carbon dioxide barrel pump unit 1, described carbon dioxide barrel pump unit 1 is provided with feed pipe 15, muffler 16, carbon dioxide liquid is pumped to refrigeration system end (as: freezer, instant freezer, add break etc.) carry out changing into carbon dioxide after sweat cooling and get back to carbon dioxide barrel pump unit 1, ammonia/fluorine is only in the interior periodic duty of container 3, do not enter refrigeration system end, only need ammonia/fluorine amount of rushing seldom, the water of the oil cooler 12 of described semiclosed ammonia/fluorine inverter screw compressor group 11 in evaporative condenser 5 bottom water tanks carries out cooling heat transferring, described evaporative condenser 5 is provided with overflow pipe 6, filling pipe 7, blow-off pipe 8, draft fan 4 is installed on the inwall of described container 3, the evaporation latent heat of carbon dioxide is large, and refrigerating effect per unit swept volume is high, in the time of 0 ℃, reaches 22.6MJ/m3, is about 5 ~ 8 times of conventional refrigerants, the dynamic viscosity of carbon dioxide is little, also very little when low temperature, the thermal conductivity factor of carbon dioxide is high, can reduce the size of system, makes whole system very compact, carbon dioxide is nontoxic, non-combustible, under high temperature, also can not decomposite toxic gas, and carbon dioxide low price, easily obtains, and has good economy.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. the freezing unit of integral type semi-enclosed variable-frequency screw rod, it is characterized in that: comprise carbon dioxide barrel pump unit (1), plate type heat exchanger (2), container (3), evaporative condenser (5), liquid reservoir (9), semiclosed ammonia/fluorine inverter screw compressor group (11) and electrical control cubicles (14), the bottom of described container (3) is provided with carbon dioxide barrel pump unit (1) successively, electrical control cubicles (14), semiclosed ammonia/fluorine inverter screw compressor group (11), liquid reservoir (9), evaporative condenser (5), the oblique upper of described electrical control cubicles (14) is provided with plate type heat exchanger (2), the exhaust outlet of described semiclosed ammonia/fluorine inverter screw compressor group (11) is connected with evaporative condenser (5), described evaporative condenser (5) is connected with liquid reservoir (9), described liquid reservoir (9) is connected with the economizer (10) of semiclosed ammonia/fluorine inverter screw compressor group (11), described economizer (10) is connected with plate type heat exchanger (2) through expansion valve (13), described plate type heat exchanger (2) is connected with the gas returning port of semiclosed ammonia/fluorine inverter screw compressor group (11), described carbon dioxide barrel pump unit (1) is connected with plate type heat exchanger (2), the oil cooler (12) of described semiclosed ammonia/fluorine inverter screw compressor group (11) is connected with evaporative condenser (5), described carbon dioxide barrel pump unit (1) is provided with feed pipe (15), muffler (16), described evaporative condenser (5) is provided with overflow pipe (6), filling pipe (7), blow-off pipe (8).
2. the freezing unit of integral type semi-enclosed variable-frequency screw rod according to claim 1, is characterized in that: draft fan (4) is installed on the inwall of described container (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369449.6U CN203396144U (en) | 2013-06-26 | 2013-06-26 | Integral semi-enclosed variable-frequency screw rod refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369449.6U CN203396144U (en) | 2013-06-26 | 2013-06-26 | Integral semi-enclosed variable-frequency screw rod refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396144U true CN203396144U (en) | 2014-01-15 |
Family
ID=49907671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320369449.6U Expired - Lifetime CN203396144U (en) | 2013-06-26 | 2013-06-26 | Integral semi-enclosed variable-frequency screw rod refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196733A (en) * | 2016-08-29 | 2016-12-07 | 上海柯茂机械有限公司 | Integrating device for heat pump |
| CN109282574A (en) * | 2018-09-25 | 2019-01-29 | 陈剑军 | A kind of device and production method with ammonia heat pump refrigerating recycling dry ice gas phase |
-
2013
- 2013-06-26 CN CN201320369449.6U patent/CN203396144U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196733A (en) * | 2016-08-29 | 2016-12-07 | 上海柯茂机械有限公司 | Integrating device for heat pump |
| CN106196733B (en) * | 2016-08-29 | 2019-06-11 | 上海柯茂机械有限公司 | Integrating device for heat pump |
| CN109282574A (en) * | 2018-09-25 | 2019-01-29 | 陈剑军 | A kind of device and production method with ammonia heat pump refrigerating recycling dry ice gas phase |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 14, 2023, the expiration and termination of 39 volumes and 2802 issues of the patent Number: 28-02 Volume: 39 |
|
| CU01 | Correction of utility model |