CN204830560U - Prevent crystallization lithium bromide unit - Google Patents
Prevent crystallization lithium bromide unit Download PDFInfo
- Publication number
- CN204830560U CN204830560U CN201520060402.0U CN201520060402U CN204830560U CN 204830560 U CN204830560 U CN 204830560U CN 201520060402 U CN201520060402 U CN 201520060402U CN 204830560 U CN204830560 U CN 204830560U
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- CN
- China
- Prior art keywords
- lithium bromide
- level gauge
- crystallization
- dilution tunnel
- motor switch
- 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.)
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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
Abstract
The utility model provides a prevent crystallization lithium bromide unit, including cryrogenic fluid pump, evaporimeter, absorber and cooling water piping, lithium bromide concentrator, condenser, still be equipped with control system, be equipped with the level gauge in the lithium bromide concentrator, last temperature -sensing ware and the flow control valve of being provided with of cooling water piping the condenser arrives pipeline between the evaporimeter with add dilutent pipeline between the lithium bromide concentrator, it is equipped with the motor -operated switch to dilute the pipeline, the utility model has the advantages of: through being equipped with control system, temperature -sensing ware, flow control valve, diluting pipeline, motor -operated switch, level gauge, can solve lithium bromide solution crystallization's problem fast, guarantee the cooling effect of unit, do benefit to the maintenance unit.
Description
Technical field
The utility model relates to the non-electrical chillers of a kind of direct combustion, in particular to a kind of crystallization-preventive lithium bromide chiller.
Background technology
Lithium bromide chiller refrigeration application obtains more and more wider, and reason is: it utilizes heat energy for power, and lower potential heat energy especially can be utilized as solar energy, waste heat, used heat etc.Whole unit quiet operation, owing to taking lithium bromide water solution as working medium, therefore odorless, nontoxic, harmless, meets the requirement of environmental protection; Whole refrigeration machine works under vacuo, and security is high etc.Although lithium bromide chiller advantage is a lot, but has shortcoming, manual maintenance is needed to maintain, especially because set structure is complicated, so maintenance difficulties is high.
Lithium-bromide solution, as absorbent, can reuse in unit, but lithium bromide is salt, easily causes the appearance of crystalline polamer because of some unbalanced factor in unit.Such as:
1, cooling water temperature is on the low side, when passing into the cooling water temperature being arranged on absorber interior conduit and being on the low side, after bromize lithium dilute solution in absorber and cooling water heat exchange, temperature can be on the low side, during the bromize lithium concentrated solution heat exchange of this bromize lithium dilute solution and higher temperatures, concentrated solution temperature declines by a big margin, solubilize degree declines thereupon, easy crystallization, and the cooling water temperature condensation rate accelerating refrigerant vapour on the low side, in generator, water as refrigerant gasification rate is accelerated, in generator, solution concentration raises, when solution reaches hypersaturated state, there will be the phenomenon of crystallization equally,
If lithium-bromide solution temperature raises in 2 high pressure generators, water as refrigerant vaporization rate is too fast, and in generator and heat exchanger, bromize lithium concentrated solution concentration raises, when reach capacity state time, lithium bromide crystallization;
Now, although can close blower fan of cooling tower to improve cooling water temperature, such processing reaction is too slow, or the bromize lithium dilute solution in the too low cooling water of some temperature and absorber carries out heat exchange, still easily occurs crystallization.
Chinese utility model patent Authorization Notice No. is " CN201740305U ", authorized announcement date is on February 9th, 2011, in the file of " lithium bromide absorption cold/warm water unit and source pump with crystallization prevention function " by name, disclose following structure: relate to absorber, heat exchanger or low temperature heat exchanger, regenerator or low-temperature regenerator, overflow passage is set at regenerator or between low-temperature regenerator and absorber.Although this technical scheme can adopt the principle of bypass overflow, vibrational power flow overflow passage before and after the instant heating interchanger of easy crystallization position, prevent concentrate circulating pump from overloading, timely elimination crystalline polamer, but this way can not solve crystallisation problems from source, just eliminate crystallization when crystalline polamer occurs passively.Can also solve the too high problem of lithium-bromide solution temperature generator from control of heat source aspect in addition, but such solution takes effect slowly.
In unit, the existence of lithium bromide crystallization not only weakens cooling effect, and clean difficulty is high simultaneously, is unfavorable for that unit maintains.
Summary of the invention
The utility model provides a kind of crystallization-preventive lithium bromide chiller, to solve lithium bromide chiller easily because equalized temperature problem causes lithium-bromide solution crystallization, weakens unit cooling effect, increases unit and cleans difficulty, maintain the problems such as unfavorable to unit.
A kind of crystallization-preventive lithium bromide chiller, comprise cryogenic fluid pump, evaporimeter, absorber and cooling water pipeline thereof, solution pump, lithium bromide concentrator, condenser, by-pass line is provided with between described absorber and described lithium bromide concentrator, also be provided with control system, liquid level gauge is provided with in described lithium bromide concentrator, described cooling water pipeline is provided with temperature inductor and flow control valve, dilution tunnel is set up between pipeline between described condenser to described evaporimeter and described lithium bromide concentrator, described dilution tunnel is provided with motor switch, described liquid level gauge, motor switch, temperature inductor, flow control valve is all connected with described control system.
Further, described lithium bromide concentrator is secondary lithium bromide concentrator, and it comprises high pressure generator, high-temperature heat exchanger, low pressure generator, low temperature heat exchanger.
Further, between described absorber and described high-temperature heat exchanger, be provided with the first by-pass line, between described absorber and described low temperature heat exchanger, be provided with the second by-pass line.
Further, described liquid level gauge comprises the first liquid level gauge, the second liquid level gauge, and described first liquid level gauge is located on described high pressure generator, described second liquid level gauge is located on described low pressure generator.
Further, described dilution tunnel comprises the first dilution tunnel and the second dilution tunnel, described first dilution tunnel is located between pipeline between described condenser to described evaporimeter and described high pressure generator, and described first dilution tunnel is located between pipeline between described condenser to described evaporimeter and described low pressure generator.
Further, described motor switch comprises described first motor switch, described second motor switch, and described first motor switch is located in described first dilution tunnel, and described second motor switch is located in described second dilution tunnel.
The utility model has the advantage of: by being provided with control system, the first motor switch and the second motor switch is respectively equipped with in the first dilution tunnel and the second dilution tunnel, when the liquid level in high pressure generator or low pressure generator obviously reduces, lithium bromide concentration supersaturation is described, now control system opens corresponding first motor switch and the second motor switch, water as refrigerant through condenser process is guided in high pressure generator or low pressure generator, rapid dilution bromize lithium concentrated solution; By being provided with temperature inductor and flow control valve at cooling water pipeline, when cooling water temperature is too low, temperature inductor sends signal to control system, by control system control flow check adjustable valve, reduce cooling water flow, thus control the cooling-down effect of bromize lithium dilute solution in absorber, above-mentioned measure can solve the problem of crystallization in heat exchanger from many aspects, to a deeper level, Resolving probiems is obtained more comprehensive, fast, effectively.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation.
Detailed description of the invention
In order to solve, cooling water temperature in prior art is too low, lithium-bromide solution supersaturation and crystallization in the unit caused in generator, unit cooling effect is caused to reduce, maintenance difficult, is unfavorable for the problems such as the maintenance of unit, now provides a kind of crystallization-preventive lithium bromide chiller.
Below in conjunction with the accompanying drawing in the utility model, be clearly and completely described the technical scheme in the utility model, obviously, described is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
As shown in Figure 1, a kind of crystallization-preventive lithium bromide chiller, comprise evaporimeter 1, absorber 2 and cooling water pipeline 4 thereof, lithium bromide concentrator, condenser 12, by-pass line is provided with between described absorber 2 and described lithium bromide concentrator, also be provided with control system, liquid level gauge is provided with in described lithium bromide concentrator, described cooling water pipeline is provided with temperature inductor 5 and flow control valve 3, dilution tunnel is set up between pipeline between described condenser 12 to described evaporimeter 1 and described lithium bromide concentrator, described dilution tunnel is provided with motor switch, described liquid level gauge, motor switch, temperature inductor 5, flow control valve 3 all with described control system (not shown) wireless connections.
Described lithium bromide concentrator is secondary lithium bromide concentrator, it comprises high pressure generator 9, high-temperature heat exchanger 6, low pressure generator 11, low temperature heat exchanger 7, the first by-pass line 16 is provided with between described absorber 2 and described high-temperature heat exchanger 6, the second by-pass line 17 is provided with between described absorber 2 and described low temperature heat exchanger 11, described liquid level gauge comprises the first liquid level gauge (not shown), second liquid level gauge (not shown), described first liquid level gauge is located on described high pressure generator 9, described second liquid level gauge is located on described low pressure generator 11, described dilution tunnel comprises the first dilution tunnel 14 and the second dilution tunnel 15, described first dilution tunnel 14 is located between pipeline between described condenser 12 to described evaporimeter 1 and described high pressure generator 9, described first dilution tunnel 14 is located between pipeline between described condenser 12 to described evaporimeter 1 and described low pressure generator 11, described motor switch comprises described first motor switch 10, described second motor switch 13, described first motor switch 10 is located in described first dilution tunnel 14, described second motor switch 13 is located in described second dilution tunnel 15.
If the cooling water temperature carrying out heat exchange with bromize lithium dilute solution in absorber 2 is too low, then control system is after the signal receiving temperature inductor 5 transmission, send instruction, cooling water flow is reduced by flow control valve 3, heat exchange effect in rapid adjustment absorber 2 is carried out with this, reduce the possibility of crystallization when bromize lithium concentrated solution and bromize lithium dilute solution heat exchange, if in high pressure generator 9 lithium-bromide solution because of heat source temperature too high, and cause wherein water vapor excessive velocities, volume reduces, lithium bromide supersaturation, first liquid level gauge transfers data to control system, control system opens the first motor switch 10, water as refrigerant is guided in high pressure generator 9, dilute oversaturated lithium-bromide solution, in like manner can obtain, if the lithium-bromide solution in low pressure generator 11 reaches hypersaturated state, also can dilute with same method, repeat no more herein.
From the above, the utility model has the advantage of: by being provided with control system, the first motor switch and the second motor switch is respectively equipped with in the first dilution tunnel and the second dilution tunnel, when the lithium bromide concentration supersaturation in generator, now control system opens corresponding motor switch, water as refrigerant through condenser process is guided in corresponding generator, rapid dilution bromize lithium concentrated solution; By being provided with temperature inductor and flow control valve at cooling water pipeline, when cooling water temperature is too low, temperature inductor sends signal to control system, by control system control flow check adjustable valve, reduce cooling water flow, thus control the cooling-down effect of bromize lithium dilute solution in absorber, above-mentioned measure can solve the problem of crystallization in heat exchanger from many aspects, to a deeper level, Resolving probiems is obtained more comprehensive, fast, effectively.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a crystallization-preventive lithium bromide chiller, comprise cryogenic fluid pump, evaporimeter, absorber and cooling water pipeline thereof, solution pump, lithium bromide concentrator, condenser, by-pass line is provided with between described absorber and described lithium bromide concentrator, it is characterized in that, also be provided with control system, liquid level gauge is provided with in described lithium bromide concentrator, described cooling water pipeline is provided with temperature inductor and flow control valve, dilution tunnel is set up between pipeline between described condenser to described evaporimeter and described lithium bromide concentrator, described dilution tunnel is provided with motor switch, described liquid level gauge, motor switch, temperature inductor, flow control valve is all connected with described control system.
2. a kind of crystallization-preventive lithium bromide chiller according to claim 1, it is characterized in that, described lithium bromide concentrator is secondary lithium bromide concentrator, and it comprises high pressure generator, high-temperature heat exchanger, low pressure generator, low temperature heat exchanger.
3. a kind of crystallization-preventive lithium bromide chiller according to claim 2, is characterized in that, be provided with the first by-pass line between described absorber and described high-temperature heat exchanger, be provided with the second by-pass line between described absorber and described low temperature heat exchanger.
4. a kind of crystallization-preventive lithium bromide chiller according to claim 2, it is characterized in that, described liquid level gauge comprises the first liquid level gauge, the second liquid level gauge, and described first liquid level gauge is located on described high pressure generator, described second liquid level gauge is located on described low pressure generator.
5. a kind of crystallization-preventive lithium bromide chiller according to claim 4, it is characterized in that, described dilution tunnel comprises the first dilution tunnel and the second dilution tunnel, described first dilution tunnel is located between pipeline between described condenser to described evaporimeter and described high pressure generator, and described first dilution tunnel is located between pipeline between described condenser to described evaporimeter and described low pressure generator.
6. a kind of crystallization-preventive lithium bromide chiller according to claim 5, it is characterized in that, described motor switch comprises the first motor switch, the second motor switch, and described first motor switch is located in described first dilution tunnel, and described second motor switch is located in described second dilution tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060402.0U CN204830560U (en) | 2015-01-28 | 2015-01-28 | Prevent crystallization lithium bromide unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060402.0U CN204830560U (en) | 2015-01-28 | 2015-01-28 | Prevent crystallization lithium bromide unit |
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| CN204830560U true CN204830560U (en) | 2015-12-02 |
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| CN201520060402.0U Expired - Fee Related CN204830560U (en) | 2015-01-28 | 2015-01-28 | Prevent crystallization lithium bromide unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289666A (en) * | 2017-07-14 | 2017-10-24 | 江苏联峰能源装备有限公司 | A kind of lithium bromide chiller prevents crystallization apparatus |
| CN113175772A (en) * | 2020-01-24 | 2021-07-27 | 矢崎能源系统公司 | Absorption refrigerator |
| CN117685678A (en) * | 2024-02-04 | 2024-03-12 | 荏原冷热系统（中国）有限公司 | Second-class absorption heat pump control method |
-
2015
- 2015-01-28 CN CN201520060402.0U patent/CN204830560U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289666A (en) * | 2017-07-14 | 2017-10-24 | 江苏联峰能源装备有限公司 | A kind of lithium bromide chiller prevents crystallization apparatus |
| CN113175772A (en) * | 2020-01-24 | 2021-07-27 | 矢崎能源系统公司 | Absorption refrigerator |
| CN113175772B (en) * | 2020-01-24 | 2022-07-05 | 矢崎能源系统公司 | Absorption refrigerator |
| CN117685678A (en) * | 2024-02-04 | 2024-03-12 | 荏原冷热系统（中国）有限公司 | Second-class absorption heat pump control method |
| CN117685678B (en) * | 2024-02-04 | 2024-04-05 | 荏原冷热系统（中国）有限公司 | Second-class absorption heat pump control method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |