CN201281498Y - Recirculation evaporator - Google Patents
Recirculation evaporator Download PDFInfo
- Publication number
- CN201281498Y CN201281498Y CNU2008201422922U CN200820142292U CN201281498Y CN 201281498 Y CN201281498 Y CN 201281498Y CN U2008201422922 U CNU2008201422922 U CN U2008201422922U CN 200820142292 U CN200820142292 U CN 200820142292U CN 201281498 Y CN201281498 Y CN 201281498Y
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- gas
- liquid
- refrigerant
- liquid separator
- evaporimeter
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Abstract
The utility model discloses a recycling evaporator, which aims at providing the evaporator which can enhance heat transmission coefficient of the evaporator so as to improve the performance and the efficiency of the entire refrigeration device. A low pressure liquid refrigerant outlet of a gas-liquid separator is connected with a refrigerant inlet of an evaporator; a refrigerant outlet of the evaporator is connected with an inlet of the gas-liquid separator through a gas-returning pipe; a gas outlet of the gas-liquid separator is connected with a compressor gas-returning pipeline; the outer side of the gas-liquid separator is provided with a liquid level sensor; the liquid level sensor is connected with a liquid level controller; a control signal output end of the liquid level controller is connected with a control end of an electronic expansion valve; and one end of the electronic expansion valve is connected with a low pressure liquid refrigerant inlet of the gas-liquid separator, and the other end thereof is connected with a pipe side outlet of a gas-liquid heat exchanger. The evaporator increases the flow rate of liquid refrigerant in the evaporator, the flow speed of the refrigerant is high and is completely contacted with the inner wall of a refrigerant evaporating pipeline, the heat exchanging surface obtains higher use, and the heat transmission coefficient is higher.
Description
Technical field
The utility model relates to a kind of evaporator system, in particular, relates to a kind of natural circulation gravity force liquid-supply evaporator system that can improve whole refrigerating plant performance and efficient.
Background technology
Evaporimeter is the key equipment in the refrigerating plant, and the quality of its performance has very large influence to the cost and the efficient of whole refrigerating plant, and it is the link that raising overall performance and efficient must be paid attention to.
As the important composition parts of refrigerating plant, the raising of performance of evaporator is particularly important.1 ℃ of the every rising of evaporating temperature, the coefficient of performance of refrigerating plant can increase about 4%.The enhanced heat exchange of evaporimeter is the main means that improve performance of evaporator, and the raising of evaporimeter heat transfer coefficient depends primarily on the coefficient of heat transfer of refrigerant side.At present mainly be the refrigerant side in evaporimeter, adopt the disturbance that enlarges heat transfer area and increase to realize enhanced heat exchange heat transfer medium.But, enlarging the consumption that heat transfer area can increase material, the volume of evaporimeter also can increase accordingly simultaneously, and it is bigger to take up room; Increase the flow resistance that disturbance all can increase working medium, for evaporimeter, increase between the import and export of flow resistance meaning bigger pressure differential is arranged, the refrigerant pressure and the temperature of outlet can be lower, and average evaporating temperature must reduce, from this point explanation, refrigerant side in evaporimeter, adopt enlarged-area and increase the enhanced heat exchange means of disturbance, for the whole system device, its effect is very not remarkable.
The utility model content
The utility model is in order to overcome weak point of the prior art, a kind of heat transfer coefficient that can improve evaporimeter to be provided, thereby improves whole refrigerating plant performance and efficient, saves power consumption, and can reduce the recirculation evaporimeter of negative effect.
The utility model is achieved through the following technical solutions:
A kind of recirculation evaporimeter, it is characterized in that, comprise evaporimeter, gas-liquid separator, fluid level controller, liquid level sensor, electric expansion valve, gas-liquid heat exchanger, the low pressure liquid refrigerant outlet of described gas-liquid separator is connected with the refrigerant inlet of evaporimeter, the refrigerant outlet of described evaporimeter is connected with the import of gas-liquid separator by muffler, and the gas vent of described gas-liquid separator is connected with the compressor return air pipeline; Sidepiece at gas-liquid separator is provided with liquid level sensor, described liquid level sensor is connected with fluid level controller, the control signal output of described fluid level controller is connected with the electronic Expansion Valve Control end, electric expansion valve one end is connected with the low pressure liquid refrigerant inlet of gas-liquid separator, the other end is connected with the tube side outlet of gas-liquid heat exchanger, and gas-liquid heat exchanger tube side inlet is connected with the high pressure reservoir.
Manual throttle valve one end is connected with the liquid refrigerant oil return port of gas-liquid separator, and the other end is connected with the import of gas-liquid heat exchanger shell side, and the outlet of gas-liquid heat exchanger shell side is connected with the compressor return air pipeline.
The utlity model has following technique effect:
1. recirculation evaporimeter of the present utility model is connected evaporimeter with gas-liquid separator, low pressure liquid refrigerant in the gas-liquid separator enters evaporimeter by woven hose under the effect of gravity, liquid refrigerant is vaporized gradually along evaporator pipeline absorbing environmental heat, form the gas-liquid two-phase cold-producing medium, the gas-liquid two-phase cold-producing medium enters gas-liquid separator by muffler under action of pressure, and liquid is infeeded evaporimeter again by separating, thereby form the Natural Circulation of liquid refrigerant in evaporimeter and the formed loop of gas-liquid separator, increased liquid refrigerant flow in the evaporimeter, make cold-producing medium be several times as much as evaporation capacity, cold-producing medium flow velocity height, moistening fully with the evaporation tube inner wall, make heat exchange surface obtain higher utilization, evaporimeter has higher heat transfer coefficient, thereby can improve whole refrigerating plant performance and efficient, save power consumption.
2. recirculation evaporimeter of the present utility model is extracted lower amount of refrigerant liquid and oil out with manual throttle valve at every turn, and liquid refrigerant is vaporized fully in gas-liquid heat exchanger and entered the problem that compressor has solved the compressor oil return simultaneously with oil with the evaporimeter return-air.
3. recirculation evaporimeter of the present utility model is connected gas-liquid separator with the liquid level control section, can realize the constant of gas-liquid separator liquid level.
4. the power effect of attaching most importance to of the feed flow power of recirculation evaporimeter of the present utility model, on the basis that does not increase power consumption, increased the heat transfer coefficient of refrigerant side, compare with the method that strengthens the disturbance enhanced heat exchange with traditional increase heat exchange area, its negative effect that brings reduces greatly.
Description of drawings
Fig. 1 is the utility model recirculation evaporator operation schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Fig. 1 comprises fluid level controller 1, liquid level sensor 2, gas-liquid separator 3, evaporimeter 4, electric expansion valve 6, gas-liquid heat exchanger 7 for the utility model recirculation evaporator operation schematic diagram.The low pressure liquid refrigerant outlet of gas-liquid separator 3 is connected with the refrigerant inlet of evaporimeter 4, the refrigerant outlet of evaporimeter 4 is connected with the import of gas-liquid separator by muffler, the gas vent of gas-liquid separator is connected with the return line of the compressor of corresponding system 9, thereby forms the Natural Circulation of liquid refrigerant in evaporimeter and the formed loop of gas-liquid separator.For the liquid level that keeps gas-liquid separator constant, arranged outside at gas-liquid separator has liquid level sensor 2, liquid level sensor 2 is connected with fluid level controller 1, the control signal output of fluid level controller is connected with the control end of electric expansion valve 6, electric expansion valve 6 one ends are connected with the low pressure liquid refrigerant inlet of gas-liquid separator 3, the other end is connected with the tube side outlet of gas-liquid heat exchanger 7, described gas-liquid heat exchanger tube side inlet is connected with high pressure reservoir 8, the opening and closing of the signal controlling electric expansion valve that fluid level controller transmits according to liquid level sensor, thus the liquid level of gas-liquid separator is controlled.
In order to solve the problem of compressor oil return, manual throttle valve 5 one ends are connected with the liquid refrigerant oil return port of gas-liquid separator, and the other end is connected with the shell side inlet of gas-liquid heat exchanger 7, and the shell side outlet of gas-liquid heat exchanger is connected with the return line of compressor.Lower amount of refrigerant liquid and oil are extracted out from gas-liquid separator with manual throttle valve at every turn, delivered in the gas-liquid heat exchanger, liquid refrigerant is vaporized fully in gas-liquid heat exchanger and is entered compressor with oil with the evaporimeter return-air.
In use, evaporimeter is connected with gas-liquid separator, low pressure liquid refrigerant in the gas-liquid separator enters evaporimeter by woven hose under the effect of gravity, liquid refrigerant is vaporized gradually along evaporator pipeline absorbing environmental heat, forms the gas-liquid two-phase cold-producing medium; The gas-liquid two-phase cold-producing medium enters gas-liquid separator by muffler and carries out gas-liquid separation under action of pressure, the liquid after the separation infeeds evaporimeter again, thereby forms the recirculation of liquid refrigerant in evaporimeter and the formed loop of gas-liquid separator.Constant for the liquid level that keeps gas-liquid separator, electric expansion valve is connected, the liquid level of control gas-liquid separator with gas-liquid separator.Gas-liquid heat exchanger is connected with gas-liquid separator by manual throttle valve, lower amount of refrigerant liquid and oil are extracted out from gas-liquid separator with manual throttle valve at every turn, deliver in the gas-liquid heat exchanger, liquid refrigerant is vaporized fully in gas-liquid heat exchanger and is entered compressor with oil with the evaporimeter return-air.
Although relate to a kind of recirculation evaporimeter and carried out special description disclosed with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (2)
1, a kind of recirculation evaporimeter, it is characterized in that, comprise evaporimeter, gas-liquid separator, fluid level controller, liquid level sensor, electric expansion valve, gas-liquid heat exchanger, the low pressure liquid refrigerant outlet of described gas-liquid separator is connected with the refrigerant inlet of evaporimeter, the refrigerant outlet of described evaporimeter is connected with the import of gas-liquid separator by muffler, and the gas vent of described gas-liquid separator is connected with the compressor return air pipeline; Sidepiece at gas-liquid separator is provided with liquid level sensor, described liquid level sensor is connected with fluid level controller, the control signal output of described fluid level controller is connected with the electronic Expansion Valve Control end, described electric expansion valve one end is connected with the low pressure liquid refrigerant inlet of gas-liquid separator, the other end is connected with the tube side outlet of gas-liquid heat exchanger, and described gas-liquid heat exchanger tube side inlet is connected with the high pressure reservoir.
2, recirculation evaporimeter according to claim 1, it is characterized in that, manual throttle valve one end is connected with the liquid refrigerant oil return port of gas-liquid separator, and the other end is connected with the import of gas-liquid heat exchanger shell side, and the outlet of gas-liquid heat exchanger shell side is connected with the compressor return air pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201422922U CN201281498Y (en) | 2008-10-08 | 2008-10-08 | Recirculation evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201422922U CN201281498Y (en) | 2008-10-08 | 2008-10-08 | Recirculation evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281498Y true CN201281498Y (en) | 2009-07-29 |
Family
ID=40928372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201422922U Expired - Fee Related CN201281498Y (en) | 2008-10-08 | 2008-10-08 | Recirculation evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281498Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003844A (en) * | 2010-12-07 | 2011-04-06 | 东南大学 | Efficient full-wet inner surface evaporator |
| CN102218222A (en) * | 2011-04-01 | 2011-10-19 | 山东万盛环保科技发展有限公司 | Hydrolysate self-evaporator |
| CN107339839A (en) * | 2017-08-18 | 2017-11-10 | 浙江冰欧新能源科技有限公司 | A kind of novel energy-conserving moves ice machine |
| CN110206731A (en) * | 2019-06-28 | 2019-09-06 | 张家港市江南利玛特设备制造有限公司 | It is a kind of to divide oil system for fuel injection helical lobe compressor |
-
2008
- 2008-10-08 CN CNU2008201422922U patent/CN201281498Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003844A (en) * | 2010-12-07 | 2011-04-06 | 东南大学 | Efficient full-wet inner surface evaporator |
| CN102218222A (en) * | 2011-04-01 | 2011-10-19 | 山东万盛环保科技发展有限公司 | Hydrolysate self-evaporator |
| CN107339839A (en) * | 2017-08-18 | 2017-11-10 | 浙江冰欧新能源科技有限公司 | A kind of novel energy-conserving moves ice machine |
| CN110206731A (en) * | 2019-06-28 | 2019-09-06 | 张家港市江南利玛特设备制造有限公司 | It is a kind of to divide oil system for fuel injection helical lobe compressor |
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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: 20090729 Termination date: 20121008 |