CN2677832Y - Residual-heat double-action lithium bromide absorption hot-cold water machine set - Google Patents
Residual-heat double-action lithium bromide absorption hot-cold water machine set Download PDFInfo
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- CN2677832Y CN2677832Y CNU2003201108932U CN200320110893U CN2677832Y CN 2677832 Y CN2677832 Y CN 2677832Y CN U2003201108932 U CNU2003201108932 U CN U2003201108932U CN 200320110893 U CN200320110893 U CN 200320110893U CN 2677832 Y CN2677832 Y CN 2677832Y
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Abstract
The utility model relates to a residual-heat double-action lithium bromide absorption hot-cold water machine set, comprising a high voltage generator 12 with smoke gas type, an evaporator 27, an absorber 16, a condenser 26, a high-temperature heat exchanger 13, a low-temperature heat exchanger 14, and a pipeline, a pump and a valve which are connected with each component. The utility model is characterized in that the machine set is added and provided with a secondary smoke generator 5, and the secondary smoke generator comprises a heat transfer tube bundle 9, a tube body 10, the inlet 7 and the outlet 8 of the smoke gas, a liquid inlet tube 18 and an outlet liquid opening 11; a secondary smoke intake tube 20 is communicated between the inlet of the smoke gas and a smoke discharge tube 21 of the high voltage generator, and a secondary smoke discharge tube 4 is communicated between the outlet of the smoke gas and a smoke discharge main tube 1 of the machine set; a primary smoke discharge tube 19 is communicated between the smoke discharge main tube and the smoke discharge tube 21 of the high voltage generator, and smoke gas valves 3 are arranged on the secondary smoke intake tube and the primary smoke discharge tube; the liquid inlet tube is communicated with the heat exchanger, and the outlet liquid opening is communicated with the low-temperature heat exchanger. The machine set can make full use of the residual heat of the smoke gas, and can make the temperature of the smoke gas emission in refrigerating and operating of the machine set be reduced much lower.
Description
Technical field:
The utility model relates to a kind of residual heat type double-effect lithium bromide absorption type hot and cold water unit.Belong to the lithium bromide absorbing type refrigeration equipment technical field.
Background technology:
Residual heat type double-effect lithium bromide absorption type hot and cold water unit in the past as depicted in figs. 1 and 2.Fig. 1 substitutes the formed unit of Direct Fired High Pressure Generator in the direct-burning type lithium bromide absorption type hot and cold water unit with flue gas type high pressure generator, the waste heat flue gas that external device (ED)s such as gas electricity generator or engine are discharged is introduced smoke generator, utilize the smoke discharging residual heat of external device (ED) to heat weak solution, carry out cooling or heat supply running with drive train from absorber.Unit shown in Figure 2 is to come the formed unit of flue gas type high pressure generator in alternate figures 1 unit with the fuel supplementing type high pressure generator, when the smoke discharging residual heat amount of external device (ED) adds heat less than the unit air conditioner load is required, the control system of unit promptly starts fuel supplementing type burner that generator is joined, the weak solution that enters generator is carried out supplementary heating, make generator always add heat and the unit air conditioner load is complementary, to satisfy cooling (heat supply) requirement.Because the smoke generator of these two kinds of units all only adopts the single-stage recurring structure, waste heat smog discharge temperature still higher (about 180 ℃) had both been underused fume afterheat during the unit refrigerating operaton, and smoke evacuation still has heavier heat extraction to pollute to atmospheric environment.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can make full use of fume afterheat, the residual heat type double-effect lithium bromide absorption type hot and cold water unit that the smog discharge temperature during with the unit refrigerating operaton is even lower.
The purpose of this utility model is achieved in that a kind of residual heat type double-effect lithium bromide absorption type hot and cold water unit, comprise flue gas type high pressure generator, evaporimeter, absorber, condenser, high-temperature heat exchanger, low temperature heat exchanger, solution pump, cryogenic fluid pump and the pipeline that connects each parts, valve, be characterized in having additional in the unit secondary smoke generator, the secondary smoke generator comprises heat-exchanging tube bundle, cylindrical shell, gas approach, exhanst gas outlet, feed tube and liquid outlet, heat-exchanging tube bundle is arranged in the cylindrical shell, gas approach, exhanst gas outlet and liquid outlet are arranged on the cylindrical shell, be communicated with the secondary smoke-intake pipe between gas approach and the high pressure generator smoke exhaust pipe, be communicated with the secondary smoke exhaust pipe between the smoke evacuation house steward of exhanst gas outlet and unit, be communicated with the one-level smoke exhaust pipe between smoke evacuation house steward and the high pressure generator smoke exhaust pipe, on secondary smoke-intake pipe and the one-level smoke exhaust pipe gas fume valve is housed all, feed tube is communicated with heat exchanger, and liquid outlet is communicated with low temperature heat exchanger.
During above-mentioned unit refrigerating operaton, waste heat flue gas from external device (ED) is introduced into high pressure generator heat release cooling, enter secondary smoke generator heat release cooling again, the exhaust temperature of flue gas is reduced to below 120 ℃, can make full use of fume afterheat, energy savings reduces smoke evacuation to greatest extent the heat extraction of atmospheric environment is polluted.
Description of drawings:
Fig. 1 is the schematic diagram of residual heat type double-effect lithium bromide absorption type hot and cold water unit in the past.
Fig. 2 is the schematic diagram of fuel supplementing type double-effect lithium bromide absorption type hot and cold water unit in the past.
Fig. 3,4,5 is the structural representation of three kinds of forms of residual heat type double-effect lithium bromide absorption type hot and cold water unit of the present utility model.
Fig. 6 is the residual heat type double-effect lithium bromide absorption type hot and cold water unit structural representation that the secondary smoke generator in the unit adopts the showering spray type structure.
Fig. 7 is a fuel supplementing type double-effect lithium bromide absorption type hot and cold water unit structural representation.
Fig. 8 is for adopting the residual heat type double-effect lithium bromide absorption type hot and cold water unit structural representation of compound low pressure generator.
Fig. 9 is for adopting the residual heat type double-effect lithium bromide absorption type hot and cold water unit structural representation of flow process in parallel.
The specific embodiment:
Unit of the present utility model as shown in Figure 3, this unit is to set up the fume afterheat type double-effect lithium bromide absorption type hot and cold water unit that secondary smoke generator 5 forms on the basis of unit shown in Figure 1, is made of flue gas type high pressure generator 12 (can be described as the one-level smoke generator again), secondary smoke generator 5, evaporimeter 27, absorber 16, condenser 26, high-temperature heat exchanger 13, low temperature heat exchanger 14, solution pump 28, cryogenic fluid pump 29, control system (not shown) and the pipeline, the valve that connect each parts.On the pipeline between flue gas type high pressure generator 12 taphole pipes and the absorber 16, solution transfer valve 15 is housed, on the pipeline between flue gas type high pressure generator 12 steam outlet pipes and the evaporimeter 27 steam transfer valve 24 is housed.Secondary smoke generator 5 is a showering spray type generator, is made up of heat-exchanging tube bundle 9, cylindrical shell 10, gas approach 7, exhanst gas outlet 8, feed tube 18, liquid distributor 6, liquid outlet 11 and other parts.Heat-exchanging tube bundle 9 is arranged in the cylindrical shell 10, gas approach 7, exhanst gas outlet 8 and liquid outlet 11 are arranged on the cylindrical shell 10, be communicated with secondary smoke-intake pipe 20 between gas approach 7 and the high pressure generator smoke exhaust pipe 21, be communicated with secondary smoke exhaust pipe 4 between the smoke evacuation house steward 1 of exhanst gas outlet 8 and unit, between the smoke evacuation house steward 1 of unit and the high pressure generator smoke exhaust pipe 21 one-level smoke exhaust pipe 19 is housed, on one-level smoke exhaust pipe 19 and the secondary smoke-intake pipe 20 gas fume valve 3 is housed all, heat-exchanging tube bundle 9 is the fume tube type structure, be that flue gas is walked in the pipe, the steam that pipe is outer to be walked lithium-bromide solution and produce when being heated.Be communicated with low pressure steam pipe 17 between vapor outlet port and the condenser 26, liquid distributor 6 places heat-exchanging tube bundle 9 tops, is communicated with feed tube 18, and feed tube 18 is communicated with high-temperature heat exchanger 13 liquid outlets.Liquid outlet 11 is communicated with low temperature heat exchanger 14.During the unit refrigerating operaton, solution transfer valve 15 and steam transfer valve 24 are closed, and the gas fume valve 3 on the one-level smoke exhaust pipe 19 is closed, and the gas fume valve 3 on the secondary smoke-intake pipe is opened; From the external device (ED) (not shown), the waste heat flue gas of temperature higher (as 500 ℃) enters flue gas type high pressure generator 12 through smoke-intake pipe 22, go out high pressure generator 12 after the bromize lithium dilute solution heat release cooling (temperature is reduced to about 180 ℃) in the heating high-pressure generator, enter heat-exchanging tube bundle 9 in the secondary smoke generator 5 through secondary smoke-intake pipe 20, further heat release is lowered the temperature (temperature is reduced to below 120 ℃) after secondary smoke exhaust pipe 4 and smoke evacuation house steward 1 discharge unit in heat-exchanging tube bundle 9, when the smoke evacuation mobilization dynamic of external device (ED) is not enough, can in smoke evacuation house steward 1, air-introduced machine 2 be set; High temperature (temperature the is about 150 ℃) intermediate solution that goes out high pressure generator through high pressure generator drain pipe 23 enters high-temperature heat exchanger 13, heat exchange cooling (temperature is reduced to about 90 ℃) back divides two-way to go out high-temperature heat exchanger 13 in high-temperature heat exchanger, one the tunnel advances low pressure generator 25, another road enters secondary smoke generator 5 through feed tube 18, outside liquid distributor 6 is uniformly scattered onto heat-exchanging tube bundle 9, produced steam by the heating of the flue gas in the tube bank, after being condensed into concentrated solution, go out secondary smoke generator 5 through liquid outlet 11, together enter low temperature heat exchanger 14 with concentrated solution then, in low temperature heat exchanger, enter absorber 16 after the heat exchange cooling (temperature is reduced to about 40 ℃) from low pressure generator 25; The steam that produces in the secondary smoke generator 5 enters condenser 26 through low pressure steam pipe 17, with enter evaporimeter 27 after steam from low pressure generator 25 is together become water as refrigerant by the cooling water condensation in the heat exchanger tube, being sprayed the evaporimeter heat exchanger tube carries out sweat cooling outward.During the unit heat supply running, solution transfer valve 15 and steam transfer valve 24 are opened, the cryogenic fluid pump stall, gas fume valve 3 on the one-level smoke exhaust pipe 19 is opened, gas fume valve 3 on the secondary smoke-intake pipe 20 is closed, waste heat flue gas from external device (ED) enters high pressure generator 12 through smoke-intake pipe 22, goes out high pressure generator after the lithium-bromide solution heat release cooling (temperature is reduced to about 140 ℃) in the heating high-pressure generator, discharges unit through one-level smoke exhaust pipe 19 and smoke evacuation house steward 1; The bromize lithium dilute solution that enters in the high pressure generator 12 is heated generation steam, is condensed into concentrated solution after solution transfer valve 15 enters absorber 16, and steam then enters evaporimeter 27 through steam transfer valve 24, the external heat supply of hot water in the heating fumigators heat exchanger tube.Discharged flue gas is unlikely to cause that the heat-exchanging tube bundle in the secondary smoke generator 5 heats up when making the unit heat supply running, gas fume valve 3 (as shown in Figure 4) can be set in secondary smoke exhaust pipe 4, during the unit refrigerating operaton, this valve open, during the unit heat supply running, this valve closing.
The secondary smoke generator can be designed to one (shown in Fig. 3～4) separately, also can be designed to one (shown in Figure 5) with low pressure generator 25.The flue gas heat exchange tube bank 9 of secondary smoke generator 5 is restrained 33 designs in same cylindrical shell 10 with the steam heat-exchanging of low pressure generator 25, and corresponding gas approach 7 is set on cylindrical shell 10, exhanst gas outlet 8, feed tube 18 and liquid outlet 11, be communicated with secondary smoke-intake pipe 20 between gas approach 7 and the high pressure generator smoke exhaust pipe 21, be communicated with secondary smoke exhaust pipe 4 between the smoke evacuation house steward 1 of exhanst gas outlet 8 and unit, feed tube 18 is communicated with high-temperature heat exchanger 13, liquid outlet 11 is communicated with low temperature heat exchanger 14, be about to secondary smoke generator 5 and be designed to one with low pressure generator 25, can be used to simultaneously heat concentratedly from the lower waste heat flue gas of the refrigerant vapour of high pressure generator 12 and temperature to entering lithium-bromide solution in the cylindrical shell, the steam that produces during heating directly enters condenser.
Secondary smoke generator 5 also can adopt submerged generator (as shown in Figure 6), liquid distributor need be set in the submerged generator, liquid outlet 11 is arranged on the top of cylindrical shell 10, heat-exchanging tube bundle 9 adopts upright waterpipe type structure, be that flue gas is walked outside the pipe, the steam (heat-exchanging tube bundle also can adopt fume tube type structure shown in Figure 3) of walking lithium-bromide solution in the pipe and producing when being heated.
Substitute flue gas type high pressure generator in the unit shown in Figure 3 with the fuel supplementing type high pressure generator, this unit promptly becomes fuel supplementing type double-effect lithium bromide absorption type hot and cold water unit (as shown in Figure 7), when the smoke discharging residual heat amount of external device (ED) and hot water heat sum add heat less than the unit air conditioner load is required, the control system of unit promptly starts burner 30 operations, for unit provides additional heat, with cooling (heat supply) requirement of satisfying air-conditioning.
Substitute low pressure generator in the unit shown in Figure 3 with the compound low pressure generator that can utilize hot water and high pressure generator refrigerant vapour that solution is heated simultaneously, this unit promptly becomes the residual heat type double-effect lithium bromide absorption type hot and cold water unit (as shown in Figure 8) that can utilize hot water (hot water that comprises waste heat hot water and other form) and waste heat flue gas to drive operation simultaneously.The heat-exchanging tube bundle of compound low pressure generator 25 is made up of hot water heat-exchanging tube bundle 32 and steam heat-exchanging tube bank 33.During the unit refrigerating operaton, hot water from external device (ED) (in not shown in the figures) is managed 31 turnover hot water heat-exchanging tube bundles 32 through the hot water entrance, together heat lithium-bromide solution in the low pressure generator with refrigerant vapour from high pressure generator 12, make unit can utilize hot water and waste heat flue gas to drive simultaneously, carry out the cooling operation.During the unit heat supply running, in the external heat supply of hot water in the steam-heated evaporator heat exchanger tube that lithium-bromide solution in utilizing waste heat flue gas heating high-pressure generator produces, can adopt mode by the transfer valve (not shown) directly to air-conditioning system heat supply water from the hot water of external device (ED), to the air-conditioning system heat supply, also can adopt mode by the hot water in water water-to-water heat exchanger (showing among the figure) the heating air-conditioning system, to the air-conditioning system heat supply, thereby realize utilizing simultaneously hot water and waste heat flue gas to come to the air-conditioning system heat supply.
But the solution flow process serial flow (Fig. 3～shown in Figure 8) of unit, flow process also in parallel (as shown in Figure 9).In flow process in parallel, the bromize lithium dilute solution that goes out solution pump (being also referred to as generating pump) 28 is divided into two-way, and one the tunnel advances high-temperature heat exchanger 13, and low temperature heat exchanger 14 is advanced on another road; The weak solution that goes out high-temperature heat exchanger enters high pressure generator 12, and the weak solution that goes out low temperature heat exchanger is divided into two-way, and one the tunnel advances low pressure generator 25, and another road enters secondary smoke generator 5 through feed tube 18.The concentrated solution that goes out high pressure generator 12 enters high-temperature heat exchanger 13, the concentrated solution that goes out secondary smoke generator 5 and low pressure generator 25 together enters low temperature heat exchanger 14, the concentrated solution that goes out high-temperature heat exchanger 13 and low temperature heat exchanger 14 together enters the solution liquid capsule of absorber 16 bottoms, gets to absorber 16 tops by absorption pump 34 again and sprays absorption.
Unit shown in Figure 8 is applicable to and has hot water simultaneously the place of (hot water that comprises waste heat hot water and other form) and waste heat flue gas, and all the other units are applicable to the occasion with waste heat flue gas, the temperature of hot water must 〉=85 ℃, the temperature palpus of flue gas 〉=350 ℃.Utilize above-mentioned unit to carry out cooling (heat supply) operation, can make full use of fume afterheat, energy savings reduces smoke evacuation to greatest extent the heat extraction of atmospheric environment is polluted.
Claims (10)
1, a kind of residual heat type double-effect lithium bromide absorption type hot and cold water unit, comprise flue gas type high pressure generator (12), evaporimeter (27), absorber (16), condenser (26), high-temperature heat exchanger (13), low temperature heat exchanger (14), solution pump (28), cryogenic fluid pump (29) and the pipeline that connects each parts, valve, it is characterized in that having additional in the unit secondary smoke generator (5), secondary smoke generator (5) comprises heat-exchanging tube bundle (9), cylindrical shell (10), gas approach (7), exhanst gas outlet (8), feed tube (18) and liquid outlet (11), heat-exchanging tube bundle (9) is arranged in the cylindrical shell (10), gas approach (7), exhanst gas outlet (8) and liquid outlet (11) are arranged on the cylindrical shell (10), be communicated with secondary smoke-intake pipe (20) between gas approach (7) and the high pressure generator smoke exhaust pipe (21), be communicated with secondary smoke exhaust pipe (4) between the smoke evacuation house steward (1) of exhanst gas outlet (8) and unit, the smoke evacuation house steward (1) with high pressure generator smoke exhaust pipe (21) between be communicated with one-level smoke exhaust pipe (19), on secondary smoke-intake pipe (20) and the one-level smoke exhaust pipe (19) gas fume valve (3) is housed all, feed tube (18) is communicated with heat exchanger, and liquid outlet (11) is communicated with low temperature heat exchanger (14).
2, a kind of residual heat type double-effect lithium bromide absorption type hot and cold water unit according to claim 1, the solution flow process that it is characterized in that unit is a serial flow, the feed tube (18) of secondary smoke generator (5) is communicated with high-temperature heat exchanger (13).
3, a kind of residual heat type double-effect lithium bromide absorption type hot and cold water unit according to claim 1, the solution flow process that it is characterized in that unit is a flow process in parallel, the feed tube (18) of secondary smoke generator (5) is communicated with low temperature heat exchanger (14).
4,, it is characterized in that the heat-exchanging tube bundle (9) of secondary smoke generator (5) and the heat-exchanging tube bundle (33) of low pressure generator (25) are designed in same cylindrical shell (10) according to claim 2 or 3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units.
5, according to claim 2 or 3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units, it is characterized in that low pressure generator (25) is compound low pressure generator, its heat-exchanging tube bundle is made up of hot water heat-exchanging tube bundle (32) and steam heat-exchanging tube bank (33).
6, according to claim 1 or 2,3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units, it is characterized in that secondary smoke generator (5) is a submerged generator.
7, according to claim 1 or 2,3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units, it is characterized in that secondary smoke generator (5) is a showering spray type generator, heat-exchanging tube bundle (9) top is provided with liquid distributor (6), and liquid distributor (6) is communicated with feed tube (18).
8,, it is characterized in that among the smoke evacuation house steward (1) of unit air-introduced machine (2) being housed according to claim 1 or 2,3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units.
9, according to claim 1 or 2,3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units, it is characterized in that flue gas type high pressure generator (12) is the fuel supplementing type high pressure generator.
10, according to claim 1 or 2,3 described a kind of residual heat type double-effect lithium bromide absorption type hot and cold water units, it is characterized in that being equipped with on the secondary smoke exhaust pipe (4) gas fume valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201108932U CN2677832Y (en) | 2003-11-14 | 2003-11-14 | Residual-heat double-action lithium bromide absorption hot-cold water machine set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201108932U CN2677832Y (en) | 2003-11-14 | 2003-11-14 | Residual-heat double-action lithium bromide absorption hot-cold water machine set |
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| Publication Number | Publication Date |
|---|---|
| CN2677832Y true CN2677832Y (en) | 2005-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201108932U Expired - Fee Related CN2677832Y (en) | 2003-11-14 | 2003-11-14 | Residual-heat double-action lithium bromide absorption hot-cold water machine set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135347A (en) * | 2011-04-23 | 2011-07-27 | 大连三洋制冷有限公司 | High-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit |
| CN103759459A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Flue gas and hot water single and double effect compounded lithium-bromide absorption refrigerating unit |
| CN103759462A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Smoke lithium bromide absorption refrigerating unit with smoke solution heat exchanger |
-
2003
- 2003-11-14 CN CNU2003201108932U patent/CN2677832Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135347A (en) * | 2011-04-23 | 2011-07-27 | 大连三洋制冷有限公司 | High-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit |
| CN102135347B (en) * | 2011-04-23 | 2013-05-08 | 大连三洋制冷有限公司 | High-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit |
| CN103759459A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Flue gas and hot water single and double effect compounded lithium-bromide absorption refrigerating unit |
| CN103759462A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Smoke lithium bromide absorption refrigerating unit with smoke solution heat exchanger |
| CN103759459B (en) * | 2014-01-18 | 2015-08-12 | 双良节能系统股份有限公司 | Fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit |
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| Date | Code | Title | Description |
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| 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: 20050209 Termination date: 20111114 |