CN202521936U - Waste heat absorption refrigeration device for micro-oil screw air compressor - Google Patents
Waste heat absorption refrigeration device for micro-oil screw air compressor Download PDFInfo
- Publication number
- CN202521936U CN202521936U CN201120432411XU CN201120432411U CN202521936U CN 202521936 U CN202521936 U CN 202521936U CN 201120432411X U CN201120432411X U CN 201120432411XU CN 201120432411 U CN201120432411 U CN 201120432411U CN 202521936 U CN202521936 U CN 202521936U
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- Prior art keywords
- oil
- air compressor
- little
- waste heat
- refrigerator
- 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.)
- Expired - Fee Related
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 238000005057 refrigeration Methods 0.000 title claims abstract description 13
- 239000002918 waste heat Substances 0.000 title abstract description 11
- 239000003921 oil Substances 0.000 claims description 37
- 239000003507 refrigerant Substances 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000010725 compressor oil Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 239000010721 machine oil Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Compressor (AREA)
Abstract
The utility model relates to a waste heat absorption refrigeration device for a micro-oil screw air compressor, which comprises an air compressor, an oil circuit system and an absorption refrigeration system that are in sequential and circular connection. Hot oil at about 90 DEG C, obtained through an oil and gas separator of the micro-oil screw air compressor, acts as a heat source of the absorption refrigeration system to produce chilled water at 7 DEG C; the temperature of lubricant oil of the air compressor drops from 90 DEG C to 70 DEG C; and the lubricant oil returns to the air compressor system directly. With the adoption of the waste heat absorption refrigeration device for the micro-oil screw air compressor, the waste heat accounting for approximately 80% of the rated power of the air compressor can be recovered; and the problem that the utilization rate of the waste heat from the air compressor is low is solved.
Description
Technical field
The utility model relates to a kind of little whelk bar pneumatics waste heat absorption type refrigerating unit, can be with discarded industrial enterprise's pneumatics waste heat recovery, and prepare 7 ℃ chilled water buy car in installments between, office's air conditioner refrigerating or technology cooling, reduce enterprise's refrigeration expense.
Background technology
Air compressor machine is a kind of universal machine, is the most the fourth-largest energy of extensive use in the industrial circle.In most of manufacturers, compressed-air actuated energy resource consumption accounts for 10%～35% of whole energy resource consumptions.
Air compressor sucks air from environment, after overcompression, pressure-air is discharged, and this process has not only improved the pressure potential of air, has produced a large amount of heat of compression simultaneously.Add up according to u.s. department of energy; Really be used to increase the electric energy that air potential energy is consumed; In total power consumption, only account for about 15% a so little part, about 85% electric energy is converted into heat, and is taken away by various cooler ventilating fans; Be discharged in the environment, these heat energy do not obtain good use.
Current, the pneumatics heat recovery technology reaches its maturity, and is enterprise's acceptance; But the situation that ubiquity can't utilize fully or not utilize summer is particularly at southern area, except that the part Process heat; Most waste heat is still drained, the UTILIZATION OF VESIDUAL HEAT IN efficient that influence is whole.Also there is part enterprise to hope to convert residual heat of air compressor to hot water, then through hot water operated absorption refrigerating machine's refrigeration, but because have a narrow range of temperature (the having only usually about 8 ℃) of thermal source, utilization rate of waste heat is very low.
Summary of the invention:
The purpose of the utility model is to adopt the Absorption Refrigerator of the big temperature difference, and unserviceable little whelk bar residual heat of air compressor directly is used for refrigeration, and with the inlet oil temperature that oily temperature drop allows to air compressor machine, solves the low problem of residual heat of air compressor utilization rate.
The technical scheme of the utility model is:
1. connect air compressor machine, oil piping system, Absorption Refrigerator successively, form a complete system.Utilize about 90 ℃ deep fat that little whelk bar compressor oil gas separating device comes out thermal source, prepare 7 ℃ chilled water as Absorption Refrigerator; Simultaneously, air compressor machine lubricating oil oil temperature can be dropped in generator below 70 ℃, can directly get back to the injection system of air compressor machine.
2. the generator of Absorption Refrigerator (6) is serially connected between compressor oil gas separating device (2) and oil temperature control valve (4), (8), and system is simple, does not have consumable accessory, and system stability is reliable, even breakdown of refrigeration system can not influence the stability of air compression system yet.
The beneficial effect of the utility model is:
1. creatively directly utilize air compressor machine high temperature grease refrigeration, and, improve the thermal source turnover temperature difference, solved the low problem of pneumatics utilization rate of waste heat through strengthening the heat exchange area and the heat exchange efficiency of generator.
2. the utility model is to be power with the pneumatics waste heat, and the electric power that unit itself consumes is about 3% of power output, compares the absorption system economize on electricity with voltage compression type refrigerating machine and reaches 70%, has good market popularization value and energy-saving potential.
Description of drawings:
Fig. 1 is the sketch map of a kind of little whelk bar residual heat of air compressor absorption type refrigerating unit system
The practical implementation method:
The utility model implementation method is explained as follows:
The oil circulation of little whelk bar air compressor machine:
Oil circuit outlet at little whelk bar compressor oil gas separating device (2) connects oil pipe (3); And receive oil temperature control valve (4); Oil temperature control valve (4) has two-way outlet; The high temperature oil-out is connected with absorbing refrigerator generators (6) heating agent import through oil pipe (5), and deep fat is connected with the original oil temperature control valve of air compressor machine (8) through oil pipe (7) after the generator heat exchange; The low temperature oil-out is parallelly connected with oil pipe (7) through oil pipe (13), and when guaranteeing that air compressor machine exports oily temperature and is lower than 65 ℃, air compressor machine lubricating oil is without the generator of Absorption Refrigerator.
Screw air compressor is delivered to gs-oil separator (2) with 90 ℃ of oil-containing compressed air of 0.75Mpa; After the Oil-gas Separation; Deep fat is got back to compressor through low temperature outlet, the oil pipe (12) of oil pipe (3), oil temperature control valve (4), oil pipe (5), refrigerator generators (6), oil pipe (7), oil temperature control valve (8).When refrigerating capacity is not enough (refrigeration duty is low); The outlet oil temperature of refrigerator generators (6) is higher than 65 ℃, and this moment, oil exported through oil pipe (9) through the high temperature of oily temperature controller (8), after aerial cooler (10) cooling; After oil pipe (11,12) mixing, at the injection system of getting back to air compressor machine (1).
The absorption system circulation:
90 ℃ compressor lubricant oil gets into refrigerator generators (6) as the thermal source of Absorption Refrigerator, makes the generator refrigerants vaporize, simultaneously with below the oily temperature drop to 70 ℃.The steam that generator produces arrives condenser (15) condensation through refrigerant pipe (14); Liquid refrigerants after the condensation gets into evaporimeter (19) after expansion valve (18) throttling; Refrigerant evaporates in evaporimeter; The heat of 12 ℃ of chilled water backwater in the absorption refrigerating water return pipe (20), and see 7 ℃ chilled water off through chilled water feed pipe (21).The refrigerant steam that evaporimeter comes out arrives absorber (23) through refrigerant pipe (22); Refrigerant steam is cooled in absorber; And absorbed by the absorbent solution of the high concentration of returning through absorbent pipeline (28) from refrigerator generators (6); And, get back to generator through refrigerant pipe (27) through refrigerant delivery pump (26), accomplish kind of refrigeration cycle.
Condenser (15) has cooling water inlet pipe (16), (24) to be connected with cooling water system with cooling water outlet pipe (17), (25) respectively with the cooling water of absorber (23).
Claims (4)
1. little whelk bar residual heat of air compressor absorption type refrigerating unit; Comprise the system that little whelk bar air compressor machine, oil piping system, Absorption Refrigerator connect to form; It is characterized in that: directly the flowline (3) with compressor oil separator (2) is connected with the generator thermal source inlet of Absorption Refrigerator through oil pipe (5) through oil temperature control valve (4); The outlet of generator thermal source is connected with the oil-in of air compressor machine temperature-sensing valve (8), forms a train.
2. a kind of little whelk bar residual heat of air compressor absorption type refrigerating unit according to claim 1; It is characterized in that: oil piping system comprises that gs-oil separator (2), oil temperature control valve (4), refrigerator generators (6), oil temperature control valve (8), aerial cooler (10) connect to form through oil pipe; Can air compressor machine oil circuit separator (2) oil outlet temperature be dropped to below 70 ℃, directly supply the air compressor machine safe handling.
3. a kind of little whelk bar residual heat of air compressor absorption type refrigerating unit according to claim 1 is characterized in that: do not establish by-pass valve control and throttling element on the oil circuit.
4. a kind of little whelk bar residual heat of air compressor absorption type refrigerating unit according to claim 1; It is characterized in that: the absorption refrigeration machine cooling system is connected to form through the refrigerant pipe by refrigerator generators (6), condenser (15), expansion valve (18), evaporimeter (19), absorber (23), refrigerant delivery pump (26); The absorbing refrigerator generators that is designed (6) is applicable to 90 ℃ lubricating oil; And the turnover temperature difference of thermal source reaches 15-20 ℃, to guarantee the afterheat utilization rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120432411XU CN202521936U (en) | 2011-11-04 | 2011-11-04 | Waste heat absorption refrigeration device for micro-oil screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120432411XU CN202521936U (en) | 2011-11-04 | 2011-11-04 | Waste heat absorption refrigeration device for micro-oil screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202521936U true CN202521936U (en) | 2012-11-07 |
Family
ID=47104881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120432411XU Expired - Fee Related CN202521936U (en) | 2011-11-04 | 2011-11-04 | Waste heat absorption refrigeration device for micro-oil screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202521936U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016349A (en) * | 2012-12-21 | 2013-04-03 | 洛阳蓝海实业有限公司 | Energy-saving device for recovering and utilizing waste heat of air compressor |
| CN103335443A (en) * | 2013-06-19 | 2013-10-02 | 刘志红 | Waste heat recovered refrigeration air conditioning system |
| CN103452815A (en) * | 2013-08-18 | 2013-12-18 | 杭州哲达科技股份有限公司 | Device and method for improving operating efficiency of air compressor by utilizing air pressure waste heat |
| CN105444588A (en) * | 2015-12-19 | 2016-03-30 | 黄华杰 | Direct-heating waste heat recovery system of centrifugal type and oil-free screw type compressors |
| CN106801667A (en) * | 2017-02-14 | 2017-06-06 | 杭州联投能源科技有限公司 | Air compressor energy-saving device of air and its application method |
| CN106969528A (en) * | 2017-03-23 | 2017-07-21 | 深圳普鲁士特空压系统有限公司 | A kind of the heat recovery circulatory system and its method |
| CN108592443A (en) * | 2018-04-16 | 2018-09-28 | 中冶南方工程技术有限公司 | Smoke absorption formula refrigeration system and its generating means |
-
2011
- 2011-11-04 CN CN201120432411XU patent/CN202521936U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016349A (en) * | 2012-12-21 | 2013-04-03 | 洛阳蓝海实业有限公司 | Energy-saving device for recovering and utilizing waste heat of air compressor |
| CN103335443A (en) * | 2013-06-19 | 2013-10-02 | 刘志红 | Waste heat recovered refrigeration air conditioning system |
| CN103452815A (en) * | 2013-08-18 | 2013-12-18 | 杭州哲达科技股份有限公司 | Device and method for improving operating efficiency of air compressor by utilizing air pressure waste heat |
| CN105444588A (en) * | 2015-12-19 | 2016-03-30 | 黄华杰 | Direct-heating waste heat recovery system of centrifugal type and oil-free screw type compressors |
| CN106801667A (en) * | 2017-02-14 | 2017-06-06 | 杭州联投能源科技有限公司 | Air compressor energy-saving device of air and its application method |
| CN106801667B (en) * | 2017-02-14 | 2019-01-04 | 杭州联投能源科技有限公司 | Air compressor energy-saving device of air and its application method |
| CN106969528A (en) * | 2017-03-23 | 2017-07-21 | 深圳普鲁士特空压系统有限公司 | A kind of the heat recovery circulatory system and its method |
| CN108592443A (en) * | 2018-04-16 | 2018-09-28 | 中冶南方工程技术有限公司 | Smoke absorption formula refrigeration system and its generating means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20201104 |