CN203908103U - Combined ammonia compression refrigerating system - Google Patents
Combined ammonia compression refrigerating system Download PDFInfo
- Publication number
- CN203908103U CN203908103U CN201420239221.XU CN201420239221U CN203908103U CN 203908103 U CN203908103 U CN 203908103U CN 201420239221 U CN201420239221 U CN 201420239221U CN 203908103 U CN203908103 U CN 203908103U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- cooling
- water
- cold water
- condenser
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses a combined ammonia compression refrigerating system, which solves the problems of high energy consumption and high production cost of the existing ammonia compression refrigerating process. The system comprises a hot water buffering tank, a hot water circulation pump, a condenser and a cold water machine which are sequentially connected, wherein the hot water inlet of the cold water machine is connected with the condenser, and the hot water outlet is connected with the hot water buffering tank; the cold water outlet of the cold water machine is sequentially connected with the cold water inlet of an ammonia condenser, the cold water outlet of the ammonia condenser, a cold water buffering tank, a cold water circulation pump and the cold water inlet of the cold water machine. The system disclosed by the utility model is simple, and used for effectively recovering waste heat and using the waste heat as heat source refrigerating water, and condensing gaseous ammonia at the outlet of a ammonia compressor into liquid ammonia, thus realizing energy saving and consumption reducing, and production cost reducing.
Description
Technical field
The utility model relates to a kind of refrigeration system, specifically a kind of combined type ammonia compression refrigerating system.
Background technology
At present in Coal Chemical Engineering Project, gas cleaning device deep cooling operation (being cold user) all needs the cold of-40 DEG C, traditional cold provides and all takes ammonia compression refrigeration, gaseous ammonia is compressed to 1.9MPag by ammonia compressor, then, by circulating water, makes gas ammonia be condensed into liquefied ammonia 40 DEG C of left and right, liquefied ammonia is sent deep cooling operation after cold, through vacuum flashing, cold is provided to deep cooling operation, the gas ammonia after liquid ammonia gasification is got back to ammonia compressor import again.
In fields such as coal methyl alcohol processed, coal-ethylene glycols, there is a large amount of low-grade remaining heat (150 DEG C following) well to utilize in addition, all directly adopt circulating cooling water cooling, so both consumed in a large number recirculated water, wasted again Lowlevel thermal energy.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, provide that a kind of technique is simple, effective recovery waste heat using this as thermal source chilled water, the gas ammonia of ammonia compressor outlet is condensed into liquefied ammonia, realizes the combined type ammonia compression refrigerating system of saving energy and reduce the cost, reducing production costs.
The utility model combined type ammonia compression refrigerating system, comprises the hot water surge tank, hot water circulating pump, condenser and the cooling-water machine that connect successively, and the hot water inlet of described cooling-water machine is connected with condenser, and hot water outlet is connected with hot water surge tank; The cooling water outlet of described cooling-water machine is connected with the cooling water inlet of cooling water outlet, cold water surge tank, cold water circulation pump and the cooling-water machine of the cooling water inlet of ammonia condenser, ammonia condenser successively.
The liquefied ammonia outlet of described ammonia condenser is connected with the gas ammonia import of cold user, ammonia compressor and ammonia condenser successively.
Technique comprises that draw hot water by hot water surge tank heats up after hot water circuit is pumped into condenser recovery waste heat, hot water after intensification is sent into the thermal source of cooling-water machine as cooling-water machine by the hot water inlet of cooling-water machine, and the hot water after the cooling of being drawn by cooling-water machine hot water outlet is recycled to hot water surge tank; Cold water in cold water surge tank is sent into the cooling water inlet of cooling-water machine through cold water circulation pump, the cold water cooling that is cooled in cooling-water machine, cold water after cooling is drawn and is sent into the ammonia condenser intensification of indirectly absorbing heat by cooling water outlet, the gas ammonia entering in ammonia condenser is condensed into liquefied ammonia, and the cold water after intensification is recycled to cold water surge tank.
Gas ammonia from cold user is compressed to 0.9Mpag through ammonia compressor, then sends into ammonia condenser and is indirectly cooled to 20-22 DEG C of formation liquefied ammonia by cold water, then delivers to cold user cold is provided.
In described cooling-water machine, the inlet temperature of hot water is 95 ± 3 DEG C, and outlet temperature is 68-72 DEG C, and in cooling-water machine, the inlet temperature of cold water is 13-15 DEG C; Outlet temperature is 6-8 DEG C.
Described condenser is for recovery waste heat, and hot water heats up after connecing during this time heat exchange; It is local fully that described condenser is arranged on factory's low level heat, as overhead condenser.
In cooling-water machine inside, by the absorption and desorption of lithium-bromide solution, can produce by the hot water of 95 ± 3 DEG C the cold water of 6-8 DEG C, due in cooling-water machine, hot water and cold water are all emitted heat, and this heat is all recycled cooling water and takes away.
According to the physical property of ammonia, gas ammonia corresponding pressure in the time of 40 DEG C of condensations and 20 DEG C of condensations is respectively about 1.9MPag and 0.9MPag, in same refrigerating capacity situation, both shaft power ratios are 47:31, relatively traditional ammonia refrigeration process, by this invention technical scheme, can make ammonia compressor shaft power reduce approximately 34%, thereby save the high steam approximately 34% that drive compression machine is used, there is significant energy conservation and consumption reduction effects.
Beneficial effect:
1. because the techniques such as the cryogenic technology of gas cleaning device and coal methyl alcohol processed, coal-ethylene glycol all belong to coalification field, cold user and remaining thermogenetic system are separated by nearer, therefore be highly suitable for comprehensive utilization, inventor just based on above-mentioned consideration by both by the circulatory system that designs separately in conjunction with the effective recovery waste heat of cooling-water machine and for refrigeration, thereby significantly reduce the outlet pressure of ammonia compressor, and then reduce ammonia compressor turbine steam consumption.By the utilization of low grade heat energy, reduce the consumption of high-grade steam, thereby improved factory's efficiency, reduce production cost.
2. the utility model technical process is simple, use be common equipment, equipment investment and operating cost are low, good stability, reliability is high.
Brief description of the drawings
Fig. 1 is the utility model process chart and system diagram.
Wherein, 1-hot water surge tank, 2-hot water circulating pump, 3-overhead condenser, 4-cooling-water machine, 4.1-hot water inlet, 4.2-hot water outlet, 4.3-cooling water inlet, 4.4-cooling water outlet, 5-cold water surge tank, 6-cold water circulation pump, 7-ammonia condenser, 7.1-cooling water inlet, 7.2-cooling water outlet, the import of 7.3-gas ammonia, the outlet of 7.4-liquefied ammonia, 8-cold user, 9-ammonia compressor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further explained to explanation:
System embodiment:
The utility model combined type ammonia compression refrigerating system, comprise the hot water surge tank 1, hot water circulating pump 2, overhead condenser 3 and the cooling-water machine 4 that connect successively, the hot water inlet 4.1 of described cooling-water machine 4 is connected with overhead condenser 3, and hot water outlet 4.2 is connected with hot water surge tank 1; The cooling water outlet 4.4 of described cooling-water machine 4 is connected with the cooling water inlet 4.3 of cooling water outlet 7.2, cold water surge tank 5, cold water circulation pump 6 and the cooling-water machine 4 of the cooling water inlet 7.1 of ammonia condenser 7, ammonia condenser successively.The liquefied ammonia outlet 7.4 of described ammonia condenser 7 is connected with the gas ammonia import 7.3 of cold user 8, ammonia compressor 9 and ammonia condenser successively.
Process example:
1, deliver to overhead condenser 3 from hot water surge tank 1 hot water (68-72 DEG C) out through hot water circulating pump 2 and be heated to 95 ± 3 DEG C with recovery waste heat, then enter cooling-water machine 4 through hot water inlet 4.1, hot water heat release in cooling-water machine 4, temperature is down to 68-72 DEG C, then from the hot water outlet 4.2 of cooling-water machine out, get back to hot water surge tank 1.
2, deliver to cooling-water machine 4 through cold water circulation pump 6 through cooling water inlet 4.3 from cold water surge tank 5 cold water 5 (13-15 DEG C) out, cold water heat release in cooling-water machine 4, cold water heat is cooled to 6-8 DEG C after passing to cooling-water machine 4, from the cooling water outlet 4.4 of cooling-water machine out, then enter ammonia condenser 7 and be warming up to 13-15 DEG C from the gas ammonia heat exchange of ammonia compressor 9, finally turning back to again cold water surge tank 5.
3,, in cooling-water machine 4, having passed into temperature is 32 DEG C of recirculated cooling waters, can in cooling-water machine 4, absorb heat, and takes away the net quantity of heat that cold water and hot water are emitted, and is 40 DEG C from cooling-water machine 4.6 circulating cooling coolant-temperature gage out,
4, the pressure producing from cold user 8 gasifications is about 40KPa (A), temperature is that the gaseous ammonia of-40 DEG C enters ammonia compressor 9, compression pressure-raising is to 0.9MPag, gas ammonia after compression enters ammonia condenser 7 and cold water indirect heat exchange, emit heat, gaseous ammonia (gas ammonia) is condensed into the liquid ammonia (liquefied ammonia) of 20-22 DEG C, and it is gas ammonia that liquid ammonia enters cold user 8 decompression gasifications, cold is passed to user, and said process loops.
5. while driving, can adopt hot-water heater to substitute overhead condenser 3 to hot water heating, after normal production, switch to overhead condenser 3.
Combinations thereof flow process, can make full use of the low grade residual heat of factory, produces high-grade cold simultaneously, is supplied to the user who needs cold, has reduced the shaft power of ammonia compressor, drives the required high steam of ammonia compressor thereby reduced, and has improved factory's efficiency.
Claims (2)
1. a combined type ammonia compression refrigerating system, comprise the hot water surge tank, hot water circulating pump, condenser and the cooling-water machine that connect successively, the hot water inlet of described cooling-water machine is connected with condenser, hot water outlet is connected with hot water surge tank, it is characterized in that, the cooling water outlet of described cooling-water machine is connected with the cooling water inlet of cooling water outlet, cold water surge tank, cold water circulation pump and the cooling-water machine of the cooling water inlet of ammonia condenser, ammonia condenser successively.
2. combined type ammonia compression refrigerating system as claimed in claim 1, is characterized in that, the liquefied ammonia outlet of described ammonia condenser is connected with the gas ammonia import of cold user, ammonia compressor and ammonia condenser successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239221.XU CN203908103U (en) | 2014-05-12 | 2014-05-12 | Combined ammonia compression refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239221.XU CN203908103U (en) | 2014-05-12 | 2014-05-12 | Combined ammonia compression refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908103U true CN203908103U (en) | 2014-10-29 |
Family
ID=51782369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239221.XU Withdrawn - After Issue CN203908103U (en) | 2014-05-12 | 2014-05-12 | Combined ammonia compression refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006573A (en) * | 2014-05-12 | 2014-08-27 | 中国五环工程有限公司 | Combined ammonia compression refrigeration technology and system |
-
2014
- 2014-05-12 CN CN201420239221.XU patent/CN203908103U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006573A (en) * | 2014-05-12 | 2014-08-27 | 中国五环工程有限公司 | Combined ammonia compression refrigeration technology and system |
| CN104006573B (en) * | 2014-05-12 | 2016-03-02 | 中国五环工程有限公司 | Combined type ammonia compression refrigeration technique and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411347B (en) | Coupling type heat pump waste heat recovery system | |
| CN104034083A (en) | Self-driven thermocompression heat pump cooling method and device | |
| CN103808060B (en) | Band flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN202869079U (en) | Condensate water heating device utilizing power plant circulating cooling water waste heat recovered by jet-type heat pump | |
| CN103868278A (en) | Low-grade energy driving CO2 absorption type combined cooling heating and power system | |
| CN204830556U (en) | Solar energy sprays overlapping cooling cycle system | |
| CN201199118Y (en) | Novel energy-saving refrigeratory | |
| CN203704433U (en) | Two-stage lithium bromide absorption heat transformer unit with flash evaporator | |
| CN203501532U (en) | Coupled waste heat recovery system of heat pump | |
| CN203908103U (en) | Combined ammonia compression refrigerating system | |
| CN103808059B (en) | Secondary generation secondary absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN104651004B (en) | Energy-saving coal-based natural gas process | |
| CN103808058B (en) | Band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN103808065A (en) | Second-kind lithium bromide absorption heat pump unit system | |
| CN104006573B (en) | Combined type ammonia compression refrigeration technique and system | |
| CN203704434U (en) | Two-stage lithium bromide absorption heat transformer unit with refrigerant water preheater | |
| CN205349452U (en) | System is utilized to coal system oil technology lime set waste heat high efficiency | |
| CN203704432U (en) | Secondary-generating and secondary-absorbing second type lithium bromide absorption type heat pump unit | |
| CN203336679U (en) | Heating system for low-temperature residual heat recovery | |
| CN102748894A (en) | Absorption refrigeration system with built-in generating devices | |
| CN203347861U (en) | of cooling and power generating functions of ammonia medium | |
| CN206817578U (en) | A kind of air compression station heat recovery cyclic utilization system | |
| CN205090662U (en) | Heating furnace cogeneration coupled system based on CO2 heat pump cycle | |
| CN110986425A (en) | Take vapor heat pump system of solar energy concurrent heating | |
| CN103411342A (en) | Solar high-efficient spraying and cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |