CN201340135Y - Hot water direct combustion single/double effect composite type lithium bromide absorption cold water/hot and cold water set - Google Patents

Hot water direct combustion single/double effect composite type lithium bromide absorption cold water/hot and cold water set Download PDF

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Publication number
CN201340135Y
CN201340135Y CNU2009200379760U CN200920037976U CN201340135Y CN 201340135 Y CN201340135 Y CN 201340135Y CN U2009200379760 U CNU2009200379760 U CN U2009200379760U CN 200920037976 U CN200920037976 U CN 200920037976U CN 201340135 Y CN201340135 Y CN 201340135Y
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solution
heat exchanger
generator
hot water
hot
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Expired - Lifetime
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CNU2009200379760U
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Chinese (zh)
Inventor
张长江
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Jiangsu Shuangliang Air Conditioning Equipment Co Ltd
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Jiangsu Shuangliang Air Conditioning Equipment Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

Abstract

The utility model relates to a hot water direct combustion single/double effect composite type lithium bromide absorption cold water/hot and cold water set, which comprises a direct combustion type high pressure generator (7), an evaporator (22), a absorber (1), a low pressure generator, a condenser (21), a solution heat exchanger, a solution pump and a cryogen pump (24); the low pressure generator comprises a hot water generator (15) and a steam generator (17); the hot water heat exchange tube bundle (18) and the steam heat exchange tube bundle (19) are disposed in the same barrel (20); a division board (16) is disposed between the hot water heat exchange tube bundle (18) and the steam heat exchange tube bundle (19); the solution heat exchanger comprises a high temperature heat exchanger (6), a low temperature heat exchanger (4) and a single effect solution heat exchanger (5); the solution pump comprises a single effect solution pump (23) and a double effect solution pump (25); the single effect solution pump (23) and the single effect solution heat exchanger (5) are disposed on the connecting pipeline between the absorber (1) and the hot water generator (15); thereby, a single effect solution circulation flow system is composed. The set of the utility model can realize excellent matching between the single/double solution circulation volume and heating load.

Description

Hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit
(1) technical field
The utility model relates to a kind of lithium bromide absorption cold water, hot and cold water unit.Belong to air conditioner technical field.
(2) background technology
Direct-burning type lithium bromide absorption type hot and cold water unit in the past as shown in Figure 1, this unit is made up of Direct Fired High Pressure Generator 7, evaporimeter 22, absorber 1, low pressure generator 27, condenser 21, high-temperature heat exchanger 6, low temperature heat exchanger 4, control system (not shown) and the pipeline, the valve that connect each parts.Direct-burning type lithium bromide absorption type hot and cold water unit can only move with the heat drive that direct combustion fuel produces.
In the past can be at the same time or separately with hot water (as solar water, underground heat hot water, the spent hot waters that various production technology links produce etc.) heat drive of heat and directly combustion fuel generation is carried out refrigerating operaton, carry out heating operation with the heat drive that direct combustion fuel produces, the hot-water direct-fired dual-purpose type lithium bromide absorption cold and hot water unit that is used to provide idle call cold (heat) water as shown in Figure 2, the low pressure generator 37 of this unit adopts the compound generator architecture of hot water and steam, weak solution cross over pipe 29 between low temperature heat exchanger 4 and the low pressure generator is provided with electric control valve 31, on feed tube 32 occurred frequently, be provided with magnetic valve 31, make unit can utilize the heat drive of hot water or directly combustion fuel generation to carry out refrigerating operaton at the same time or separately.But there is following weak point in this unit:
1, electric control valve and magnetic valve must adopt the valve of high-air-tightness, high reliability, bring difficulty (available valve or cost an arm and a leg on the market, or performance can not meet the demands) for the outsourcing piece type selecting;
When 2, unit utilizes the heat drive refrigerating operaton of hot water heat and directly combustion fuel generation simultaneously, the running frequency of solution pump 28 is controlled automatically according to the pressure of direct combustion high pressure generator 7, also to regulate control simultaneously to the aperture of electric control valve, enter the weak solution amount of low pressure generator with minimizing, the control difficulty is big, is difficult to realize that the solution internal circulating load distributes and add matched well between the heat complementation.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of machine is consisted of can utilize at the same time or separately hot water or hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit that directly the heat drive that produces of combustion fuel is carried out refrigerating operaton, the heat drive of utilizing direct combustion fuel to produce is carried out heat supply running are provided.
The purpose of this utility model is being achieved in that a kind of hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit, comprise Direct Fired High Pressure Generator, evaporimeter, absorber, low pressure generator, condenser, solution heat exchanger, solution pump, cryogenic fluid pump, reach the pipeline and the valve that connect each parts, it is characterized in that:
Described low pressure generator comprises hot water generator and steam generator, and the hot water heat-exchanging tube bundle of described hot water generator and the tube bank of the steam heat-exchanging of steam generator are arranged in the same cylindrical shell, is provided with demarcation strip between hot water heat-exchanging tube bundle and the steam heat-exchanging tube bank,
Described solution heat exchanger comprises high-temperature heat exchanger, low temperature heat exchanger and single-action solution heat exchanger,
Described solution pump comprises single-action solution pump and economic benefits and social benefits solution pump,
Described single-action solution pump and single-action solution heat exchanger are arranged on the connecting line between absorber and the hot water generator, form single-action solution circulation flow journey system; Described economic benefits and social benefits solution pump, low temperature heat exchanger and high-temperature heat exchanger are arranged on the connecting line between absorber, Direct Fired High Pressure Generator and the steam generator, form economic benefits and social benefits solution circulation flow journey system, so just formed single-double effect compound type solution circulation flow journey system
The utility model is on direct-burning type lithium bromide absorption type hot and cold water basis in the past, by setting up single-action solution pump, single-action solution heat exchanger and hot water generator, form the single-action solution recycle system, machine is consisted of to utilize at the same time or separately hot water or hot-water direct-fired single-double effect compound type lithium bromide absorption type hot and cold water unit that directly heat drive that produces of combustion fuel is carried out refrigerating operaton, the heat drive of utilizing direct combustion fuel to produce is carried out heat supply running, overcome the weak point that adopts electric control valve and magnetic valve.Unit utilize simultaneously the hot water heat and directly combustion fuel produce the heat drive refrigerating operaton time, be easy to carry out the solution internal circulating load and distribute with the coupling that adds between the heat complementation and control.During unit operation, make full use of the heat energy of spent hot water or cheap hot water, have only when water-heating cooling amount (heating load) can not satisfy the air-conditioning demand, just start burner and carry out supplementary heating.
(4) description of drawings
Fig. 1 is a direct-burning type lithium bromide absorption type hot and cold water unit schematic diagram in the past.
Fig. 2 is a hot-water direct-fired dual-purpose type lithium bromide absorption cold and hot water unit schematic diagram in the past.
Fig. 3 is an embodiment schematic diagram (cooling water flow path adopts flow process in parallel) of the utility model hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit.
Fig. 4 is another embodiment schematic diagram (cooling water flow path adopts flow process in parallel) of the utility model hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit.
Fig. 5 is used for the hot-water direct-fired lithium bromide absorption type cold water unit of separate refrigeration for the utility model.
Reference numeral among the figure:
Absorber 1, absorber feed tube 2, solution transfer valve 3, low temperature heat exchanger 4, single-action solution heat exchanger 5, high-temperature heat exchanger 6, Direct Fired High Pressure Generator 7, drain pipe 8 occurred frequently, hot water generator feed tube 9, hot water generator drain pipe 10, steam generator drain pipe 11, refrigerant vapour pipe 12, steam transfer valve 13, steam generator feed tube 14, hot water generator 15, demarcation strip 16, steam generator 17, hot water heat-exchanging tube bundle 18, steam heat-exchanging tube bank 19, cylindrical shell 20, condenser 21, evaporimeter 22, single-action solution pump 23, cryogenic fluid pump 24, economic benefits and social benefits solution pump 25, burner 26, low pressure generator 27, solution pump 28, weak solution communicating pipe 29, the low drain pipe 30 of sending out, magnetic valve 31, feed tube 32 occurred frequently, electric control valve 33, refrigerant vapour pipe 34, hot water inlet 35, hot water outlet 36, compound low pressure generator 37, intermediate solution liquid distributor 38, water as refrigerant outlet 39.
(5) specific embodiment
The utility model is unit as shown in Figure 3, and this unit is by Direct Fired High Pressure Generator 7, evaporimeter 22, absorber 1, hot water generator 15, steam generator 17, condenser 21, high-temperature heat exchanger 6, low temperature heat exchanger 4, single-action solution heat exchanger 5, economic benefits and social benefits solution pump 25, single-action solution pump 23, cryogenic fluid pump 24, control system (not shown) and connects the hot-water direct-fired single-double effect compound type lithium bromide absorption type hot and cold water unit that pipeline, valve constituted of each parts.The hot water heat-exchanging tube bundle 18 of hot water generator 15 and the steam heat-exchanging of steam generator 17 tube bank 19 is arranged in the same cylindrical shell 20 (hot water generator and steam generator are low pressure generator) with frame mode up and down, is provided with demarcation strip 16 between two heat-exchanging tube bundles; The weak solution drain pipe of single-action solution heat exchanger 5 is received hot water generator 15 tops as hot water generator feed tube 9; Hot water generator drain pipe 10 is received on the concentrated solution feed liquor header of single-action solution heat exchanger 5 as the concentrated solution feed tube of single-action solution heat exchanger; The intermediate solution drain pipe of high-temperature heat exchanger 6 is received steam generator 17 tops as steam generator feed tube 14; Steam generator drain pipe 11 is the concentrated solution feed tube of low temperature heat exchanger 4; The concentrated solution drain pipe of single-action solution heat exchanger 5 and low temperature heat exchanger 4 is all received on the absorber feed tube 2; On the pipeline between drain pipe 8 occurred frequently and the absorber 1, solution transfer valve 3 is housed; On the pipeline between refrigerant vapour pipe 12 and the evaporimeter 22, steam transfer valve 13 is housed.
When unit utilizes the heat refrigerating operaton of hot water and combustion fuel generation simultaneously, solution transfer valve and steam transfer valve are closed, the weak solution of from absorber, exporting by the single-action solution pump through the heat exchange intensification of single-action solution heat exchanger after the hot water generator feed tube enter hot water generator and be evenly distributed on the hot water heat-exchanging tube bundle, by heating enters the hot water generator bottom after being condensed into concentrated solution from the hot water of external device (ED) (or system), enter the heat exchange cooling of single-action solution heat exchanger after the absorber feed tube enters absorber through the hot water generator drain pipe then, form single-action solution circulation flow journey.The weak solution of being exported from absorber by the economic benefits and social benefits solution pump enters Direct Fired High Pressure Generator through low temperature heat exchanger, high-temperature heat exchanger heat exchange after heating up, the heat heating that burned device 26 combustion fuels produce is condensed into intermediate solution, intermediate solution is after drain pipe occurred frequently enters high-temperature heat exchanger heat exchange cooling, enter steam generator and be evenly distributed in the steam heat-exchanging tube bank through the steam generator feed tube, be condensed into concentrated solution by the further heating of refrigerant vapour (from Direct Fired High Pressure Generator) in the pipe, enter the steam generator bottom then; The concentrated solution that enters the steam generator bottom enters absorber through the absorber feed tube after the steam generator drain pipe enters low temperature heat exchanger heat exchange cooling, form economic benefits and social benefits solution circulation flow journey.Condense into water as refrigerant (being called water as refrigerant occurred frequently again) after the outer solution heat release of refrigerant vapour heating tube in the steam heat-exchanging tube bank, enter condenser then; The outer solution of the pipe of hot water heat-exchanging tube bundle and steam heat-exchanging tube bank is heated the steam that is produced and enters the condenser heat-exchanging tube bundle, be condensed into water as refrigerant, this water as refrigerant and water as refrigerant occurred frequently together enter evaporimeter, being sprayed evaporator tube carries out sweat cooling outward, thereby realizes utilizing simultaneously the heat of hot water and directly combustion fuel generation to freeze.The operation of single-action solution pump is carried out VFC by the control system of unit according to the hot water heat, with control single-action solution internal circulating load; The operation of economic benefits and social benefits solution pump is carried out VFC by the control system of unit according to the pressure of Direct Fired High Pressure Generator, with control economic benefits and social benefits solution internal circulating load, the fuel combustion amount of burner is big more, pressure occurred frequently is high more, the running frequency of economic benefits and social benefits solution pump is high more, economic benefits and social benefits solution internal circulating load is big more, thereby realizes the matched well between single-action solution internal circulating load, economic benefits and social benefits solution internal circulating load and the heating load, and unit is by single economic benefits and social benefits composite solution circulation process operation.
When unit utilizes hot water heat refrigerating operaton separately, solution transfer valve, steam transfer valve are closed, burner and the stall of economic benefits and social benefits solution pump, low temperature heat exchanger, high-temperature heat exchanger, Direct Fired High Pressure Generator and steam generator are not worked, and unit is by the operation of single-action solution circulation flow journey.
When unit utilizes the heat refrigerating operaton of combustion fuel generation separately, solution transfer valve, steam transfer valve are closed, no hot water circulation in the hot water generator heat exchanger tube, the stall of single-action solution pump, single-action solution heat exchanger and hot water generator are not worked, and unit is by the operation of economic benefits and social benefits solution circulation flow journey.
During the unit heat supply running, solution transfer valve, steam transfer valve are opened, no hot water circulation (external heat source hot water is directly sent into the air-conditioning system heat supply, or provides air conditioning hot after sending into the heat exchanger heat exchange) in the hot water generator pipe, the stall of single-action solution pump.
The fuel combustion amount of burner is regulated control by the control system of unit automatically according to the required heat that adds of air conditioner load, when thermal source hot water is spent hot water or cheap hot water, unit makes full use of the heat energy of spent hot water or cheap hot water, have only when water-heating cooling amount (heating load) can not satisfy the air-conditioning demand, just start burner and carry out supplementary heating.
The cooling water flow path of unit is flow process in parallel (as shown in Figure 3), also serial flow (as shown in Figure 4).
Solution transfer valve, steam transfer valve and tube connector thereof in cancellation Fig. 3, Fig. 4 unit, unit promptly becomes the hot-water direct-fired lithium bromide absorption type cold water unit (as shown in Figure 5) that is used for separate refrigeration.

Claims (3)

1, a kind of hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit, comprise Direct Fired High Pressure Generator (7), evaporimeter (22), absorber (1), low pressure generator, condenser (21), solution heat exchanger, solution pump, cryogenic fluid pump (24), reach the pipeline and the valve that connect each parts, it is characterized in that:
Described low pressure generator comprises hot water generator (15) and steam generator (17), the hot water heat-exchanging tube bundle (18) of described hot water generator (15) and the steam heat-exchanging of steam generator (17) tube bank (19) are arranged in the same cylindrical shell (20), be provided with demarcation strip (16) between hot water heat-exchanging tube bundle (18) and the steam heat-exchanging tube bank (19)
Described solution heat exchanger comprises high-temperature heat exchanger (6), low temperature heat exchanger (4) and single-action solution heat exchanger (5),
Described solution pump comprises single-action solution pump (23) and economic benefits and social benefits solution pump (25);
Described single-action solution pump (23) and single-action solution heat exchanger (5) are arranged on the connecting line between absorber (1) and the hot water generator (15), form single-action solution circulation flow journey system; Described economic benefits and social benefits solution pump (25), low temperature heat exchanger (4) and high-temperature heat exchanger (6) are arranged on the connecting line between absorber (1), Direct Fired High Pressure Generator (7) and the steam generator (17), form economic benefits and social benefits solution circulation flow journey system, so just formed single-double effect compound type solution circulation flow journey system.
2, a kind of fume hot-water single-double effect compound type lithium bromide absorption type cold water according to claim 1, hot and cold water unit is characterized in that: the weak solution drain pipe of described single-action solution heat exchanger (5) is received hot water generator (15) top as hot water generator feed tube (9); The hot water generator drain pipe (10) of hot water generator (15) is received on the concentrated solution feed liquor header of single-action solution heat exchanger (5) as the concentrated solution feed tube of single-action solution heat exchanger (5); The intermediate solution drain pipe of high-temperature heat exchanger (6) is received steam generator (17) top as steam generator feed tube (14); The steam generator drain pipe (11) of steam generator (17) is the concentrated solution feed tube of low temperature heat exchanger (4); The concentrated solution drain pipe of single-action solution heat exchanger (5) and low temperature heat exchanger (4) is all received on the absorber feed tube (2); On the drain pipe occurred frequently (8) of Direct Fired High Pressure Generator (7) and the pipeline between the absorber (1), solution transfer valve (3) is housed; On the refrigerant vapour pipe (12) of Direct Fired High Pressure Generator (7) and the pipeline between the evaporimeter (22), steam transfer valve (13) is housed.
3, a kind of hot-water direct-fired single-double effect compound type lithium bromide absorption type cold water according to claim 1 and 2, hot and cold water unit is characterized in that: the hot water heat-exchanging tube bundle (18) of described hot water generator (15) and the steam heat-exchanging of steam generator (17) tube bank (19) is arranged in the same cylindrical shell (20) with frame mode up and down.
CNU2009200379760U 2009-01-08 2009-01-08 Hot water direct combustion single/double effect composite type lithium bromide absorption cold water/hot and cold water set Expired - Lifetime CN201340135Y (en)

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CNU2009200379760U CN201340135Y (en) 2009-01-08 2009-01-08 Hot water direct combustion single/double effect composite type lithium bromide absorption cold water/hot and cold water set

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103868131A (en) * 2014-03-01 2014-06-18 双良节能系统股份有限公司 After-burning lithium bromide absorption type heat exchange system
CN105953459A (en) * 2016-06-22 2016-09-21 烟台荏原空调设备有限公司 Single and double effect compound type absorption refrigerating unit
CN110173925A (en) * 2019-06-24 2019-08-27 双良节能系统股份有限公司 Direct-fired lithium bromide absorption type cold water unit with single-action heat pump heat-production functions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103868131A (en) * 2014-03-01 2014-06-18 双良节能系统股份有限公司 After-burning lithium bromide absorption type heat exchange system
CN103868131B (en) * 2014-03-01 2016-08-17 双良节能系统股份有限公司 Fuel supplementing type suction-type lithium bromide heat-exchange system
CN105953459A (en) * 2016-06-22 2016-09-21 烟台荏原空调设备有限公司 Single and double effect compound type absorption refrigerating unit
CN110173925A (en) * 2019-06-24 2019-08-27 双良节能系统股份有限公司 Direct-fired lithium bromide absorption type cold water unit with single-action heat pump heat-production functions

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20091104

Effective date of abandoning: 20090108