CN105276848A - Refrigerating system and refrigerating technique - Google Patents
Refrigerating system and refrigerating technique Download PDFInfo
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- CN105276848A CN105276848A CN201410294629.1A CN201410294629A CN105276848A CN 105276848 A CN105276848 A CN 105276848A CN 201410294629 A CN201410294629 A CN 201410294629A CN 105276848 A CN105276848 A CN 105276848A
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Abstract
The invention relates to a refrigerating system and a refrigerating technique. The refrigerating system comprises an evaporator. An air outlet of the evaporator is connected with a low-pressure machine through a pipeline. The lower-pressure machine is connected to a high-pressure machined through an intercooler. The high-pressure machine is connected to a condenser. The condenser is connected to safety equipment. The safety requirement is connected back to the evaporator through the intercooler. A pressure sensor is installed in the safety equipment. The pressure sensor is connected with a power source of the low-pressure machine through a controller. Ammonia liquor enters the safety equipment. Pressure testing is conducted on the ammonia liquor through the pressure sensor in the safety equipment. The controller drives the low-pressure machine to stop when the pressure of the ammonia liquor reaches an upper threshold value. The low-pressure machine continues to work when the pressure of the ammonia liquor reaches a lower threshold value. According to the refrigerating system, the safety equipment is added in an existing refrigerating system, and the power source for generating high pressure is cut off when the upper threshold value is reached; refrigerating fluid in a high-pressure container is directly collected into the safety equipment instead of being discharged into air, and thus the situations of explosion and poisoning are avoided.
Description
Technical field
The invention belongs to refrigeration technology field, particularly a kind of refrigeration system and refrigeration process.
Background technology
The existing compression-type refrigeration circulatory system is generally made up of the large parts of evaporimeter, compressor, condenser and expansion valve four; The refrigeration system that some compression ratios are larger is realized by bipolar machine, and low-pressure machine and high-pressure unit; Between low-pressure machine and high-pressure unit, charge air cooler is installed; Due in existing refrigeration process process, in charge air cooler, condenser, liquid storing barrel, easily produce high pressure; More existing refrigeration accidents also cause because above-mentioned three large refrigeration plants leak poisonous ammonia vapour ammoniacal liquor, ammonia vapour ammoniacal liquor may cause cause blast or make the accidents such as people is poisoned to death; Some cold-producing mediums in addition in existing high-pressure bottle have and are discharged in environment on a small quantity, there is blast or the hidden danger such as poisoning.
Summary of the invention
For the problems referred to above, the object of this invention is to provide refrigeration system and refrigeration process, while guarantee refrigeration is constant, also improve the security of technique.
Technical solution of the present invention: a kind of refrigeration system, comprises evaporimeter; The gas outlet of described evaporimeter is connected with low-pressure machine by pipeline; Described low-pressure machine is connected to high-pressure unit by charge air cooler; Described high-pressure unit is connected to condenser; Described condenser is connected to safety means; Described safety means get back to evaporimeter by charge air cooler; In described safety means, pressure sensor is installed; Described pressure sensor is connected with the power supply of low-pressure machine by controller.
Further, described safety means and the connecting line of evaporimeter are provided with choke valve and pressure-reducing valve; The connecting line of described condenser and safety means is provided with choke valve.
Further, described evaporimeter and freezer form primary Ioops by pipeline.
The refrigeration process of above-mentioned cooling system is as follows:
First, the low-pressure low-temperature ammonia steam produced in evaporimeter; Sucked by low-pressure machine and be compressed into the superheated vapor of intermediate pressure; Enter the charge air cooler of same pressure, in charge air cooler, be cooled into dry saturation vapor; In press dry saturated vapor and sucked by high-pressure unit again and the superheated vapor being compressed to condensing pressure, enter condenser subsequently and be condensed into ammonia liquid;
Secondly, ammonia liquid enters safety means; Pressure sensor in safety means carries out pressure test to it, reaches upper threshold value then controller driving low-pressure machine shutdown; When reaching lower threshold value, recovering low-pressure machine and working on;
Finally, the ammonia liquid in safety means is got back to evaporimeter by charge air cooler and is carried out second time circulation.
Beneficial effect:
Compared with prior art, refrigeration system of the present invention and refrigeration process, add safety means in existing refrigeration system, and safety means can detect pressure, reaches the corresponding action of low-pressure machine of threshold value and response refrigeration; To break the dynamic source of generation high pressure; Cold-producing medium in high-pressure bottle need not be discharged in air, directly collects in safety means, avoids exploding and the generation of poisoning situation.
Accompanying drawing illustrates:
Fig. 1 is overall structure schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, refrigeration system of the present invention, a kind of refrigeration system, is characterized in that: comprise evaporimeter 1; The gas outlet of described evaporimeter 1 is connected with low-pressure machine 3 by pipeline 2; Described low-pressure machine 3 is connected to high-pressure unit 5 by charge air cooler 4; Described high-pressure unit 5 is connected to condenser 6; Described condenser 6 is connected to safety means 7; Described safety means 7 get back to evaporimeter 1 by charge air cooler 4; In described safety means 7, pressure sensor 8 is installed; Described pressure sensor 8 is connected with the power supply of low-pressure machine 3 by controller (not shown).
Wherein, The connecting line of described safety means 7 and evaporimeter 1 is provided with choke valve and pressure-reducing valve 9; The connecting line of described condenser 6 and safety means 7 is provided with choke valve 10; Described evaporimeter 1 forms primary Ioops with freezer 11 by pipeline.
The refrigeration process of above-mentioned cooling system is as follows:
First, the low-pressure low-temperature ammonia steam produced in evaporimeter; Sucked by low-pressure machine and be compressed into the superheated vapor of intermediate pressure; Enter the charge air cooler of same pressure, in charge air cooler, be cooled into dry saturation vapor; In press dry saturated vapor and sucked by high-pressure unit again and the superheated vapor being compressed to condensing pressure, enter condenser subsequently and be condensed into ammonia liquid;
Secondly, ammonia liquid enters safety means; Pressure sensor in safety means carries out pressure test to it, reaches upper threshold value then controller driving low-pressure machine shutdown; When reaching lower threshold value, recovering low-pressure machine and working on;
Finally, the ammonia liquid in safety means is got back to evaporimeter by charge air cooler and is carried out second time circulation.
Refrigeration system of the present invention, adds safety means in existing refrigeration system, and safety means can detect pressure, reaches the corresponding action of low-pressure machine of threshold value and response refrigeration; To break the dynamic source of generation high pressure; Cold-producing medium in high-pressure bottle need not be discharged in air, directly collects in safety means, avoids exploding and the generation of poisoning situation.
Embodiment recited above is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (4)
1. a refrigeration system, is characterized in that: comprise evaporimeter; The gas outlet of described evaporimeter is connected with low-pressure machine by pipeline; Described low-pressure machine is connected to high-pressure unit by charge air cooler; Described high-pressure unit is connected to condenser; Described condenser is connected to safety means; Described safety means get back to evaporimeter by charge air cooler; In described safety means, pressure sensor is installed; Described pressure sensor is connected with the power supply of low-pressure machine by controller.Refrigeration system of the present invention adds safety means in existing refrigeration system, and safety means can detect pressure, reaches the corresponding action of low-pressure machine of threshold value and response refrigeration; To break the dynamic source of generation high pressure; Cold-producing medium in high-pressure bottle need not be discharged in air, directly collects in safety means, avoids exploding and the generation of poisoning situation.
2. refrigeration system according to claim 1, is characterized in that: described safety means and the connecting line of evaporimeter are provided with choke valve and pressure-reducing valve; The connecting line of described condenser and safety means is provided with choke valve.
3. refrigeration system according to claim 1, is characterized in that: described evaporimeter and freezer form primary Ioops by pipeline.
4. a refrigeration process; It is characterized in that, described technique comprises following step:
First, the low-pressure low-temperature ammonia steam produced in evaporimeter; Sucked by low-pressure machine and be compressed into the superheated vapor of intermediate pressure; Enter the charge air cooler of same pressure, in charge air cooler, be cooled into dry saturation vapor; In press dry saturated vapor and sucked by high-pressure unit again and the superheated vapor being compressed to condensing pressure, enter condenser subsequently and be condensed into ammonia liquid;
Secondly, ammonia liquid enters safety means; Pressure sensor in safety means carries out pressure test to it, reaches upper threshold value then controller driving low-pressure machine shutdown; When reaching lower threshold value, recovering low-pressure machine and working on;
Finally, the ammonia liquid in safety means is got back to evaporimeter by charge air cooler and is carried out second time circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294629.1A CN105276848A (en) | 2014-06-26 | 2014-06-26 | Refrigerating system and refrigerating technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294629.1A CN105276848A (en) | 2014-06-26 | 2014-06-26 | Refrigerating system and refrigerating technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276848A true CN105276848A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410294629.1A Pending CN105276848A (en) | 2014-06-26 | 2014-06-26 | Refrigerating system and refrigerating technique |
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| CN (1) | CN105276848A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11852131B2 (en) | 2017-09-25 | 2023-12-26 | Carrier Corporation | Pressure safety shutoff |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092852A (en) * | 1994-01-14 | 1994-09-28 | 潘尚尧 | One-stage multiple condensation technique for refrigeration |
| JP2001091074A (en) * | 1999-09-24 | 2001-04-06 | Sanyo Electric Co Ltd | Cascade-type refrigerating device |
| CN201096428Y (en) * | 2007-09-30 | 2008-08-06 | 苏州昆拓冷机有限公司 | Superposition type refrigerating unit auxiliary device |
| CN101737986A (en) * | 2008-11-26 | 2010-06-16 | 中国船舶重工集团公司第七○四研究所 | Non-azeotropic working medium self-overlay refrigerating device |
| CN101946137A (en) * | 2008-02-19 | 2011-01-12 | 开利公司 | Refrigerant vapor compression system |
| CN203478675U (en) * | 2013-07-16 | 2014-03-12 | 祥天控股（集团）有限公司 | High-pressure refrigeration and air storage device |
-
2014
- 2014-06-26 CN CN201410294629.1A patent/CN105276848A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092852A (en) * | 1994-01-14 | 1994-09-28 | 潘尚尧 | One-stage multiple condensation technique for refrigeration |
| JP2001091074A (en) * | 1999-09-24 | 2001-04-06 | Sanyo Electric Co Ltd | Cascade-type refrigerating device |
| CN201096428Y (en) * | 2007-09-30 | 2008-08-06 | 苏州昆拓冷机有限公司 | Superposition type refrigerating unit auxiliary device |
| CN101946137A (en) * | 2008-02-19 | 2011-01-12 | 开利公司 | Refrigerant vapor compression system |
| CN101737986A (en) * | 2008-11-26 | 2010-06-16 | 中国船舶重工集团公司第七○四研究所 | Non-azeotropic working medium self-overlay refrigerating device |
| CN203478675U (en) * | 2013-07-16 | 2014-03-12 | 祥天控股（集团）有限公司 | High-pressure refrigeration and air storage device |
Non-Patent Citations (1)
| Title |
|---|
| 吴业正: "《制冷原理及设备》", 31 December 2010 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11852131B2 (en) | 2017-09-25 | 2023-12-26 | Carrier Corporation | Pressure safety shutoff |
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Application publication date: 20160127 |
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| RJ01 | Rejection of invention patent application after publication |