CN102997515A - Water-cooled type low-temperature refrigerant compressor unit with economizer and shutoff valve - Google Patents
Water-cooled type low-temperature refrigerant compressor unit with economizer and shutoff valve Download PDFInfo
- Publication number
- CN102997515A CN102997515A CN 201110266682 CN201110266682A CN102997515A CN 102997515 A CN102997515 A CN 102997515A CN 201110266682 CN201110266682 CN 201110266682 CN 201110266682 A CN201110266682 A CN 201110266682A CN 102997515 A CN102997515 A CN 102997515A
- Authority
- CN
- China
- Prior art keywords
- economizer
- valve
- condenser
- expansion valve
- outlet
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a water-cooled type low-temperature refrigerant compressor unit with an economizer and a shutoff valve. The water-cooled type low-temperature refrigerant compressor unit comprises a compressor (1), a condenser (2), an expansion valve A (3) and an evaporator (4). The compressor (1) is a medium temperature screw compressor, an exhaust outlet (1-2) is sequentially connected with the condenser (2), the expansion valve A (3), the evaporator (4) and an air sucking inlet (1-1), and an economizer (5), an expansion valve B (6) and a magnetic valve (7) are arranged among the condenser (2), the expansion valve A (3) and an economizer connecting standby port (1-3). An outlet of the condenser (2) is respectively connected with the magnetic valve (8) and a first inlet (5-1), and the magnetic valve (8) is connected with a second inlet (5-2) through the expansion valve B (7). A second outlet (5-4) is connected with the economizer connecting standby port (1-3) through the shutoff valve (6). The water-cooled type low-temperature refrigerant compressor unit has the advantages of improving energy efficiency and preventing breakdown.
Description
Technical field
The present invention relates to a kind of thermodynamic cycle device, particularly a kind of water-cooled type low temperature refrigeration compressor bank with economizer and stop valve of utilizing refrigeration compressor to realize thermodynamic cycle.
Background technology
China Patent Publication No. CN101089518A discloses a kind of air-cooled water-cooled two-evaporimeter hot-water machine group, it has one by compressor, water cooled condenser, air-cooled evaporimeter, the refrigeration cycle that the water-cooled evaporimeter forms, this loop is provided with controller, compressor connects water cooled condenser by a cross valve, be connected with on the water cooled condenser into, delivery port, water cooled condenser connects heating power expansion valve, the outlet of heating power expansion valve connects respectively water-cooled evaporimeter and air-cooled evaporimeter, the water-cooled evaporimeter be provided with into, delivery port, the water-cooled evaporimeter be connected evaporimeter and connect cross valve, cross valve connects the refrigerant-cycle systems of compressor.It is mainly not enough: energy consumption is high, and efficient is general.
The compression process of helical-lobe compressor is unidirectional, and when rotor, refrigerant vapour is compressed in the teeth groove of phase interlock and is transported to corresponding compression stroke bottom.In this stage, be accompanied by the continuous decrease of element volume, refrigerant vapour is compressed to condensing pressure from pressure of inspiration(Pi).Pressure and the intermediate pressure in the two stages of compression of gas supplementing opening are quite similar in the middle of the helical-lobe compressor.Because gas supplementing opening was realized larger efficiency for compression end of a period tonifying Qi in the middle of these characteristics, helical-lobe compressor can be used.
Economizer can improve the operating mode of compressor, its principle: from the high pressure liquid refrigerant of condenser after entering economizer, be divided into two parts part and further cool off the temperature of going to reduce a cold part by the mode that throttling absorbs the heat expansion of another part, wherein a part of subcooled liquid that settles out directly advances the evaporimeter refrigeration by the propane supplying valve, and the uncooled gaseous propane of another part is by the be communicated with line of economizer with compressor, reenter compressor and continue compression, enter circulation.Its ingenious mode by swell refrigeration is stablized liquid refrigerant, to improve power system capacity and efficient.
Because refrigerant gas is periodically at a high speed by suction, exhaust outlet, the pipeline that economizer is linked to each other with compressor produces vibration, and pipeline breaks down easily between economizer and the compressor thus, as: the situations such as pipeline fracture, leakage.In case break down, can cause cold-producing medium to leak in a large number, can't reclaim, and waste resource, contaminated environment.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, provide a kind of use economizer be connected with the compressor economizer that mouth for subsequent use is connected, improve efficiency and maintenance easily with the water-cooled type low temperature refrigeration compressor bank of economizer and stop valve.
For realizing above-mentioned technical purpose, the present invention is by the following technical solutions: a kind of water-cooled type low temperature refrigeration compressor bank with economizer and stop valve, it comprises: compressor, condenser, comprise expansion valve A and the evaporimeter of temperature-sensitive bag, compressor is to comprise that suction inlet, air exit and economizer are connected for subsequent use mouthful middle temperature helical-lobe compressor, air exit connects condenser, expansion valve A, evaporimeter and suction inlet successively, the temperature-sensitive bag of expansion valve A is connected between evaporimeter and the suction inlet, wherein:
---also be provided with economizer, the stop valve that comprises the first import, the second import, the first outlet and the second outlet, expansion valve B and the magnetic valve that comprises the temperature-sensitive bag between described condenser, expansion valve A and the economizer connection mouth for subsequent use;
---respectively connected electromagnetic valve and first import of outlet of described condenser, magnetic valve is connected with the second import by expansion valve B;
---the first outlet is connected with described expansion valve A, and the second outlet is connected for subsequent use mouthful by stop valve and connects with described economizer, and the temperature-sensitive bag of expansion valve B is connected between the second outlet and the stop valve.
Further, the outlet of described condenser connects respectively described magnetic valve and the first import by liquid-sighting glass.
Further, establish hand valve B between described air exit and the condenser.
Further, establish hand valve A between described condenser and the liquid-sighting glass.
After adopting technique scheme, the present invention has following beneficial effect:
(1) adopting economizer, expansion valve B, stop valve, is compressor compresses end of a period tonifying Qi on the one hand, improves the compressor efficiency, prevents effectively that on the other hand circuit failure causes refrigrant leakage between compressor and the economizer, conveniently overhauls and change parts.
(2) establish liquid-sighting glass, the situation of cooling fluid in the convenient observation unit.
(3) establish hand valve B, the operation of the whole unit of convenient control, convenient maintenance.
(4) establish hand valve A, it cooperates with magnetic valve, and flowing of convenient control cold-producing medium improves the performance of whole unit.
Description of drawings
Fig. 1 is schematic diagram of the present invention.
Among the figure: 1, compressor, 1-1, suction inlet, 1-2, air exit, 1-3, economizer connect for subsequent use mouthful, and 2, condenser, 3, expansion valve A, 4, evaporimeter, 5, economizer, 5-1, economizer the first import, 5-2, economizer the second import, 5-3, economizer the first outlet, 5-4, economizer the second outlet, 6, stop valve, 7, expansion valve B, 8, magnetic valve, 9, hand valve A, 10, hand valve B, 11, liquid-sighting glass.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment
As shown in Figure 1, a kind of water-cooled type low temperature refrigeration compressor bank with economizer and stop valve, it comprises: compressor 1, condenser 2, the expansion valve A3 that comprises the temperature-sensitive bag and evaporimeter 4.
Air exit 1-2 connects condenser 2, expansion valve A3, evaporimeter 4 and suction inlet 1-1 successively, and the temperature-sensitive bag of expansion valve A3 is connected between evaporimeter 4 and the suction inlet 1-1.
The outlet of condenser 2 is connected electromagnetic valve 8 and the first import 5-1 respectively, and magnetic valve 8 is connected with the second import 5-2 by expansion valve B7.
The first outlet 5-3 is connected with expansion valve A3, and the second outlet 5-4 is connected for subsequent use mouthful of 1-3 by stop valve 6 and connects with economizer, and the temperature-sensitive bag of expansion valve B7 is connected between the second outlet 5-4 and the stop valve 6.
During normal operation, compressor 1 operation, cold-producing medium is back to compressor 1 by condenser 2, economizer 5, expansion valve A3 and evaporimeter 4 successively.When need improving efficiency, opens solenoid valve 8, the part cold-producing medium is connected with stop valve by magnetic valve 8, expansion valve B7, economizer 5 and is flowed into compressor 1 economizer and connect for subsequent use mouthful of 1-3, improves the compressor efficiency.
When economizer 5 is connected mouthful 1-3 for subsequent use and breaks down with economizer, in time close stop valve 6, prevent that cold-producing medium from leaking in a large number, easy access and change parts.
Be the situation of cooling fluid in the convenient observation unit, the outlet of condenser 2 is by liquid-sighting glass 11 difference connected electromagnetic valve 8 and the first import 5-1.
During normal operation, compressor 1 operation, cold-producing medium is back to compressor 1 by condenser 2, liquid-sighting glass 11, economizer 5, expansion valve A3 and evaporimeter 4 successively.When need improving efficiency, opens solenoid valve 8, the part cold-producing medium is connected with stop valve by magnetic valve 8, expansion valve B7, economizer 5 and is flowed into compressor 1 economizer and connect for subsequent use mouthful of 1-3, improves the compressor efficiency.
Be flowing of convenient control cold-producing medium, the operation of the whole unit of convenient control, convenient maintenance.Establish hand valve B10 between air exit 1-2 and the condenser 2.Establish hand valve A9 between condenser 2 and the liquid-sighting glass 11.
The invention is not restricted to above-described embodiment, the technical scheme that all employings are equal to or the equivalence replacement forms all falls into the protection domain that the present invention requires.
Claims (4)
1. water-cooled type low temperature refrigeration compressor bank with economizer and stop valve, it comprises: compressor (1), condenser (2), the expansion valve A(3 that comprises the temperature-sensitive bag) and evaporimeter (4), compressor (1) is to comprise suction inlet (1-1), air exit (1-2) is connected the middle temperature helical-lobe compressor of for subsequent use mouthful (1-3) with economizer, air exit (1-2) connects condenser (2) successively, expansion valve A(3), evaporimeter (4) and suction inlet (1-1), expansion valve A(3) temperature-sensitive bag is connected between evaporimeter (4) and the suction inlet (1-1), it is characterized in that wherein:
---described condenser (2), expansion valve A(3) and economizer connect also to be provided with between for subsequent use mouthful (1-3) comprise that the first import (5-1), the second import (5-2), the first outlet (5-3) and second export economizer (5), the stop valve (6) of (5-4), comprise the expansion valve B(7 of temperature-sensitive bag) and magnetic valve (8);
---respectively connected electromagnetic valve (8) and first import (5-1) of outlet of described condenser (2), magnetic valve (8) is by expansion valve B(7) be connected with the second import (5-2);
---the first outlet (5-3) and described expansion valve A(3) be connected, the second outlet (5-4) is connected mouthful (1-3) for subsequent use connection, expansion valve B(7 by stop valve (6) with described economizer) the temperature-sensitive bag be connected to second and export between (5-4) and the stop valve (6).
2. described water-cooled type low temperature refrigeration compressor bank with economizer and stop valve according to claim 1, it is characterized in that: the outlet of described condenser (2) connects respectively described magnetic valve (8) and the first import (5-1) by liquid-sighting glass (11).
3. described water-cooled type low temperature refrigeration compressor bank with economizer and stop valve according to claim 1 is characterized in that: establish hand valve B(10 between described air exit (1-2) and the condenser (2)).
4. described water-cooled type low temperature refrigeration compressor bank with economizer and stop valve according to claim 2 is characterized in that: establish hand valve A(9 between described condenser (2) and the liquid-sighting glass (11)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110266682 CN102997515A (en) | 2011-09-09 | 2011-09-09 | Water-cooled type low-temperature refrigerant compressor unit with economizer and shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110266682 CN102997515A (en) | 2011-09-09 | 2011-09-09 | Water-cooled type low-temperature refrigerant compressor unit with economizer and shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102997515A true CN102997515A (en) | 2013-03-27 |
Family
ID=47926413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110266682 Pending CN102997515A (en) | 2011-09-09 | 2011-09-09 | Water-cooled type low-temperature refrigerant compressor unit with economizer and shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102997515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322716A (en) * | 2013-06-17 | 2013-09-25 | 江苏科立德制冷设备有限公司 | Outdoor low-temperature vortex parallel compression condensing unit with enhanced vapor injection |
| CN103322717A (en) * | 2013-06-17 | 2013-09-25 | 江苏科立德制冷设备有限公司 | Low-temperature vortex parallel compression condensing unit with enhanced vapor injection |
-
2011
- 2011-09-09 CN CN 201110266682 patent/CN102997515A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322716A (en) * | 2013-06-17 | 2013-09-25 | 江苏科立德制冷设备有限公司 | Outdoor low-temperature vortex parallel compression condensing unit with enhanced vapor injection |
| CN103322717A (en) * | 2013-06-17 | 2013-09-25 | 江苏科立德制冷设备有限公司 | Low-temperature vortex parallel compression condensing unit with enhanced vapor injection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102997514A (en) | Water-cooled type low-temperature refrigerant compressor unit with economizer and silencer | |
| CN101482321B (en) | Ultra-low temperature heat pump water heater | |
| CN101398242A (en) | Thermal storage defrosting or temperature controlling mixed working substance copious cooling throttle refrigeration system | |
| CN103398485A (en) | Steam compression refrigerating system device and supercooling method | |
| CN201740300U (en) | Secondary compression heat pump system with intermediate cooler | |
| CN103335437A (en) | One-stage throttling incomplete-inter-cooling double-working-condition refrigerating system | |
| CN201463387U (en) | Bi-circulating industrial water chiller | |
| CN201945082U (en) | Integrative industrial water chiller unit | |
| CN102997475A (en) | Water-cooled type low-temperature refrigerant compressor unit with economizer | |
| CN102252412A (en) | Freon-free frequency-conversion air conditioner system | |
| CN202254533U (en) | Water-cooled low-temperature refrigerating compressor unit with economizer and stop valve | |
| CN102997515A (en) | Water-cooled type low-temperature refrigerant compressor unit with economizer and shutoff valve | |
| CN106352586A (en) | Double machine head heat source tower heat pump unit | |
| CN108759139B (en) | Primary throttling intermediate incomplete cooling refrigeration system with intermediate temperature evaporator | |
| CN103206814A (en) | Supercooling device for magnetic suspension refrigerating system with natural cold source | |
| CN203615665U (en) | Antifreezing water chilling unit | |
| CN202382483U (en) | Ultralow-temperature air source heat pump with heat regenerator | |
| CN201954839U (en) | Heat pump system provided with economizer | |
| CN205807828U (en) | A kind of compression refrigerating machine condensation heat utilization system | |
| CN105758047B (en) | The cascade refrigeration system of variable-flow either simplex matter common condenser and evaporator | |
| CN102997513A (en) | Water-cooled type low-temperature refrigerant compressor unit with economizer and one-way valve | |
| CN202250721U (en) | Improved water cooling type low-temperature refrigerating compressor set | |
| CN110849032A (en) | Compressor waste heat driven compression-injection refrigerating system | |
| CN202229485U (en) | Water-cooled low-temperature refrigeration compression unit with economizer and silencer | |
| CN202254532U (en) | Water cooling type low-temperature refrigeration compressor set with economizer and one-way valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |