CN2665623Y - Refrigeration apparatus using natural gas as refrigerant - Google Patents
Refrigeration apparatus using natural gas as refrigerant Download PDFInfo
- Publication number
- CN2665623Y CN2665623Y CN 03214170 CN03214170U CN2665623Y CN 2665623 Y CN2665623 Y CN 2665623Y CN 03214170 CN03214170 CN 03214170 CN 03214170 U CN03214170 U CN 03214170U CN 2665623 Y CN2665623 Y CN 2665623Y
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- Prior art keywords
- natural gas
- cooling
- cold
- producing medium
- evaporative condenser
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Abstract
The utility model discloses a refrigeration equipment adopting the natural gas as a refrigerant, which is provided with a cascade refrigeration device that is composed of a first grade refrigeration device(1) and a second grade refrigeration device(2).The utility model is characterized in that an evaporative condenser(3) inside the second grade refrigeration device(2) is connected with a third grade refrigeration device(4) adopting the natural gas as the refrigerant. As the natural gas, which is rich and has low cost, is adopted as the refrigerant, the cost of ultra-low temperature refrigeration can be reduced.Thus, the utility model solves the difficult problem that the natural gas can not refrigerate in ultra-low temperature with greater economic and social benefits.
Description
Technical field:
The utility model relates to a kind of refrigeration plant, and especially a kind of is the refrigeration plant of cold-producing medium with the natural gas.
Background technology:
At present, high temperature or middle temperature Refrigeration Technique are widely used in daily life, as air-conditioning, refrigerator etc.And that low-temperature refrigeration technology is used in industrial production is commonplace, as the separation refining in the industry such as food, petrochemical industry, organic synthesis, crystallization, concentrate, purification, liquefaction etc., and must could operate as normal under ultra-low temperature surroundings for some material (semiconductor etc.).Refrigeration plant all is to constitute the single-unit cooler by compressor, water condenser, oil eliminator, evaporimeter, the expansion vessel that links to each other with evaporimeter and stop valve, magnetic valve, expansion valve, device for drying and filtering etc. now, perhaps evaporimeter is an evaporative condenser, connect two unit refrigeration machines (with a kind of cold-producing medium) and constitute two repeatedly formula refrigeration machines, evaporative condenser is as the evaporimeter of previous stage, the condenser of back one-level.After its refrigeration work principle all is the compressed machine of the refrigerant gas compression of evaporation,, must become behind the liquid again that evaporation absorbs the heat refrigeration, move in circles through water condenser, oil eliminator, evaporative condenser condensation.Like this, if when adopting senior middle school's temperature cold-producing medium to carry out super low temperature refrigeration, can produce steam pressure and cross low or the refrigerant solidification phenomenon.And if when adopting low-temperature refrigerant to carry out super low temperature refrigeration, though can solve the low excessively problem of evaporating pressure, but exist the excessive problem of condensing pressure simultaneously, existing refrigeration plant is difficult to realize super low temperature refrigeration.
Summary of the invention:
The utility model is in order to solve the technical problem that existing in prior technology is difficult to realize super low temperature refrigeration, and providing a kind of is the refrigeration plant of cold-producing medium with the natural gas.
Technical solution of the present utility model is: a kind of is the refrigeration plant of cold-producing medium with the natural gas, be provided with the two repeatedly formula refrigerating plants that are made of one-level refrigerating plant 1, two-stage system device for cooling 2, it is characterized in that: linking to each other with evaporative condenser 3 in the two-stage system device for cooling 2, to be connected to the natural gas be the three tier structure device for cooling 4 of cold-producing medium.
Linking to each other with evaporative condenser 5 in the three tier structure device for cooling 4, to be connected to the natural gas be the level Four refrigerating plant 6 of cold-producing medium.
Also be provided with the formula refrigerating plant repeatedly again that is made of additional one-level refrigerating plant 7, additional two-stage system device for cooling 8, described level Four refrigerating plant 6 is connected with evaporative condenser 5 in the three tier structure device for cooling 4 by the evaporative condenser 9 in the additional two-stage system device for cooling 8.
Described evaporative condenser 9 is the low temperature fuel and vapor separator, and the compressor 10 in its oil return pipe and the level Four refrigerating plant 6 joins.
The utility model is with what unit refrigeration machine repeatedly to form again, and having increased than prior art is three grades, level Four unit refrigeration machine of cold-producing medium with the natural gas.Especially the two repeatedly formula refrigeration machines that constitute by additional one-level refrigerating plant, additional two-stage system device for cooling have been increased, can make twice evaporative condenser condensation of vapour-liquid state natural gas through different temperatures, can in time the machine oil in the cold-producing medium be separated, avoid producing the machine oil that occurs owing to condensating refrigerant and tie cured phenomenon.Because natural gas resource is abundant, with low cost, can reduce the cost of whole super low temperature refrigeration, solved can not super low temperature refrigeration with natural gas a difficult problem, have high economic benefit and social benefit.
Description of drawings:
Fig. 1 is the structural system figure of the utility model embodiment.
The specific embodiment:
Below in conjunction with the description of drawings specific embodiment of the present utility model.
A kind of is the refrigeration plant of cold-producing medium with the natural gas, be provided with by R22 and be the one-level refrigerating plant 1 of cold-producing medium, be the formula refrigerating plant repeatedly again that the two-stage system device for cooling 2 of cold-producing medium constitutes with R13, one-level refrigerating plant 1 and two-stage system device for cooling 2 are by compressor, water condenser, oil eliminator, evaporimeter and the formations such as expansion vessel that link to each other with evaporimeter, and whole device should be pressure vessel.Linking to each other with evaporative condenser 3 (afterbody evaporative condenser) in the two-stage system device for cooling 2, to be connected to ethene be the three tier structure device for cooling 4 of cold-producing medium.The boiling point of ethene is-103 ℃, it can be condensed to-83～93 ℃ by evaporative condenser 3, and its machine oil should adopt non-congealable oil.Because cold-producing medium is under complete air-tight state, so ethene is the admixture of vapour-liquid coexistence in the time of-83～-93 ℃, during by evaporimeter 3, and its liquid ethylene heat absorption sweat cooling.
Embodiment 3 is as shown in Figure 1: be on the basis of embodiment 2, also increased the formula refrigerating plant that changes again that is made of additional one-level refrigerating plant 7, additional two-stage system device for cooling 8, additional one-level refrigerating plant 7 usefulness R22 are that cold-producing medium, additional two-stage system device for cooling 8 usefulness R13 are cold-producing medium.Level Four refrigerating plant 6 by oil eliminator be connected with evaporative condenser 5 in the three tier structure device for cooling 4 again after evaporative condenser 9 in the additional two-stage system device for cooling 8 is connected.
Regular engine oil in the level Four refrigerating plant 6 can separate by oil eliminator 11, separates by evaporative condenser 9 again, and the machine oil of separation is got back in the compressor 10 by return line.Evaporative condenser 5, evaporative condenser 9 by series connection can be condensed to it-121～-131 ℃ (boiling point of methane is for-161 ℃), and its machine oil should adopt non-congealable oil.Because cold-producing medium is under complete air-tight state, so methane is the admixture of vapour-liquid coexistence in the time of-121～-131 ℃.By evaporimeter 9,5 o'clock, its liquid methane heat absorption sweat cooling.
Cold-producing medium in above three embodiment can be natural gases such as ethane, propane, propylene.
Claims (4)
1. one kind is the refrigeration plant of cold-producing medium with the natural gas, be provided with the formula refrigerating plant repeatedly again that is made of one-level refrigerating plant (1), two-stage system device for cooling (2), it is characterized in that: linking to each other with evaporative condenser (3) in the two-stage system device for cooling (2), to be connected to the natural gas be the three tier structure device for cooling (4) of cold-producing medium.
2. according to claim 1 is the refrigeration plant of cold-producing medium with the natural gas, it is characterized in that: linking to each other with evaporative condenser (5) in the three tier structure device for cooling (4), to be connected to the natural gas be the level Four refrigerating plant (6) of cold-producing medium.
3. according to claim 2 is the refrigeration plant of cold-producing medium with the natural gas, it is characterized in that: also be provided with the formula refrigerating plant repeatedly again that is made of additional one-level refrigerating plant (7), additional two-stage system device for cooling (8), described level Four refrigerating plant (6) is connected with evaporative condenser (5) in the three tier structure device for cooling by the evaporative condenser (9) that adds in the two-stage system device for cooling (8).
4. according to claim 3 is the refrigeration plant of cold-producing medium with the natural gas, it is characterized in that: described evaporative condenser (9) is the low temperature fuel and vapor separator, and the compressor (10) in its oil return pipe and the level Four refrigerating plant (6) joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214170 CN2665623Y (en) | 2003-08-06 | 2003-08-06 | Refrigeration apparatus using natural gas as refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214170 CN2665623Y (en) | 2003-08-06 | 2003-08-06 | Refrigeration apparatus using natural gas as refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665623Y true CN2665623Y (en) | 2004-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03214170 Expired - Fee Related CN2665623Y (en) | 2003-08-06 | 2003-08-06 | Refrigeration apparatus using natural gas as refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665623Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414216C (en) * | 2003-08-06 | 2008-08-27 | 侯君 | Method and device using natural gas as refrigerant |
| CN102297512A (en) * | 2011-08-12 | 2011-12-28 | 侯全舵 | Cascade type heat pump system |
-
2003
- 2003-08-06 CN CN 03214170 patent/CN2665623Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414216C (en) * | 2003-08-06 | 2008-08-27 | 侯君 | Method and device using natural gas as refrigerant |
| CN102297512A (en) * | 2011-08-12 | 2011-12-28 | 侯全舵 | Cascade type heat pump system |
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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: 20041222 Termination date: 20090907 |