阅读说明：本技术 一种基于开式吸收循环的冷热联供系统 (A kind of cold-hot combined supply system based on open type absorbent circulation ) 是由 宣永梅 陈光明 高能 于 2019-07-26 设计创作，主要内容包括：本发明公开一种基于开式吸收循环的冷热联供系统,包括开式吸收单元、湿空气处理单元和供热单元；所述开式吸收单元包括开式吸收器、溶液-水换热器、再生器、冷凝器和过冷器；所述湿空气处理单元包括通过风管依次连接的开式吸收器和露点蒸发冷却器；所述再生器产生的水蒸汽依次经冷凝器、过冷器后进入露点蒸发冷却器；所述供热单元包括通过水管连接的开式吸收器、溶液-水换热器、过冷器和冷凝器,其中,冷水经开式吸收器升温后分别经溶液-水换热器和过冷器进入冷凝器,经冷凝器升温后的热水送入供热空间。本发明所述系统可以在低能耗条件下,充分利用高湿气体能量,同时提供冷风和热水,实现能量回用。(The present invention discloses a kind of cold-hot combined supply system based on open type absorbent circulation, including open type absorbent unit, humid air processing unit and heating unit；The open type absorbent unit includes open type absorbent device, solution-water- to-water heat exchanger, regenerator, condenser and subcooler；The humid air processing unit includes passing through the sequentially connected open type absorbent device of air hose and dew point evaporative cooler；The water vapour that the regenerator generates successively enters dew point evaporative cooler after condenser, subcooler；The heating unit includes open type absorbent device, solution-water- to-water heat exchanger, subcooler and the condenser connected by water pipe, wherein, cold water enters condenser through solution-water- to-water heat exchanger and subcooler respectively after the heating of open type absorbent device, and the hot water after condenser heats up is sent into for heat space.System of the present invention can make full use of high humidity gas energy, while providing cold wind and hot water under the conditions of low energy consumption, realize energy reuse.)

1. a kind of cold-hot combined supply system based on open type absorbent circulation, which is characterized in that at open type absorbent unit, humid air Manage unit and heating unit；

The open type absorbent unit include open type absorbent device (1), solution-water- to-water heat exchanger (2), regenerator (3), condenser (4) and Subcooler (5)；The humid air processing unit includes by the sequentially connected open type absorbent device (1) of air hose and dew point evaporation cooling Device (6)；

The water vapour that the regenerator (3) generates successively enters dew point evaporative cooler after condenser (4), subcooler (5) (6)；

The heating unit include by water pipe connect open type absorbent device (1), solution-water- to-water heat exchanger (2), subcooler (5) and Condenser (4), wherein cold water enters through solution-water- to-water heat exchanger (2) and subcooler (5) respectively after open type absorbent device (1) heats up Condenser (4), the hot water after condenser (4) heating are sent into for heat space.

2. the cold-hot combined supply system according to claim 1 based on open type absorbent circulation, it is characterised in that: the dew point steams Hair cooler (6) includes dry passage and wet channel, and part primary air forms across dry passage into adjacent wet channel secondary Air, auxiliary air is in wet channel by spraying cooling；

Humid air forms primary air after Dry absorption device (1) is handled, and primary air enters in dew point evaporative cooler (6) After auxiliary air heat exchange in dry passage and wet channel, it is sent into air-conditioned room.

3. the cold-hot combined supply system according to claim 1 based on open type absorbent circulation, it is characterised in that: the dew point steams Send out the structure type that cooler uses cross-current, adverse current or direct current.

4. the cold-hot combined supply system according to claim 1 based on open type absorbent circulation, it is characterised in that: the regenerator Heat source be solar energy, geothermal energy, waste heat or any one or more of combination of waste heat.

5. the cold-hot combined supply system according to claim 1 based on open type absorbent circulation, it is characterised in that: the open type is inhaled Receiving the working fluid in circulation is lithium bromide water solution, lithium chloride solution or ammonia spirit.

Technical field

This practical invention belongs to technical field of energy utilization, and in particular to a kind of cold and heat combined supply based on open type absorbent circulation System.

Background technique

China's energy total amount ranks the first in the world, even if average to being worth per capita, China's per capita energy consumption has also surpassed Cross world's per capita share.However China's energy utilization rate is only 33%, lower than developed country about 10%.According to statistics, it in China, accounts for In the industrial energy consumption of 70% or more total energy consumption, at least 50% is converted into the industry that carrier is different, temperature is different in process of production Waste heat fails to be fully used.As can this part industrial exhaust heat of effective recycling, then can be improved efficiency of energy utilization.

It is a kind of effective ways for recycling industrial exhaust heat with the open absorption heat pump that lithium bromide water solution etc. is working medium pair, The device does not need the evaporator of conventional suction system, and open type absorbent device works under atmospheric pressure, reduces main component to true The requirement of reciprocal of duty cycle, structure is simpler compact, and hot humid gas is directly contacted with absorbent, enhances heat and mass transfer process, is used for There is significant performance advantage when recovery of latent heat containing humid gas, while Mist heat recovering, can also be achieved waste gas dedusting and take off Sulphur.Existing patent, as a kind of patent of invention " open absorption heat pump " of publication number CN102287957A utilizes absorbent (such as bromine Change lithium) outer low pressure vapor is absorbed, the absorber that can be directly entered absorption heat pump from extraneous Low pressure steam is molten Liquid absorbs, and realizes waste heat recycling；Utility model patent " the wet waste gas residual heat high efficiente callback of heat and the benefit of publication number CN207019338U Economic benefits and social benefits open absorption heat pump device " is directly contacted with flue gas by solution, and vapor in recovered flue gas and remaining is reached Heat realizes the heat recovery to flue gas；A kind of patent of invention " recycling moisture-containing airflow waste heat of publication number CN104089430A Fountain open absorption heat pump system " so that high temperature moisture-containing airflow is entered in generator the atomization directly with spray equipment injection Working medium direct contact heat transfer mass transfer recycles heat and vapor in moisture-containing airflow.Open type absorbent circulation has phase with solution dehumidification Like place, solution dehumidification can also be used and directly handle air, in combination with other modes Combined Treatment air, reaches air-conditioning It is required that such as the patent " a kind of solution total heat recovery and the compound Fresh air handing device of dehumidification by condensation " of publication number CN104807116A, The patent " solution type constant-temperaturedehumidifier dehumidifier and its control method " of publication number CN102997343A, etc..

Above-mentioned patent can be using the waste heat or waste heat in open type absorbent circulation and stress industrial production, or provides cold wind, but It can not achieve while cold and heat combined supply.May be implemented in existing patent cold and heat combined supply patent some using adsorption technology, it is such as public The patent of invention " device and its cooling/heating united supply method of cold and heat combined supply are realized using waste heat " of the number of opening CN101556093 proposes one The device and its cooling/heating united supply method of cold and heat combined supply are realized using waste heat in kind chemisorption techniques field；Some are driven using conventional electricity Dynamic technology, such as the patent of invention " the big temperature-difference central heating system of data center's cold and heat combined supply waste heat " of publication number CN108317582A Using chiller unit and compression heat pump, the waste heat of data center is extracted by the refrigerated circulating water of vaporizer side.

Summary of the invention

For deficiency existing for existing system, the present invention provides a kind of cold-hot combined supply system based on open type absorbent circulation, Comprehensive utilization of energy circulation is constructed, on the other hand one side recovery waste heat provides cold wind, realize that the energy effectively comprehensively utilizes.

To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:

It is a kind of based on open type absorbent circulation cold-hot combined supply system, including open type absorbent unit, humid air processing unit and Heating unit；The open type absorbent unit includes open type absorbent device, solution-water- to-water heat exchanger, regenerator, condenser and subcooler； The humid air processing unit includes passing through the sequentially connected open type absorbent device of air hose and dew point evaporative cooler；The regenerator The water vapour of generation successively enters dew point evaporative cooler after condenser, subcooler；The heating unit includes passing through water pipe Open type absorbent device, solution-water- to-water heat exchanger, subcooler and the condenser of connection, wherein cold water is distinguished after the heating of open type absorbent device Enter condenser through solution-water- to-water heat exchanger and subcooler, the hot water after condenser heats up is sent into for heat space.

One of as a preferred solution of the present invention, the dew point evaporative cooler includes dry passage and wet channel, part one Secondary air passes through dry passage and enters adjacent wet channel formation auxiliary air, and auxiliary air is in wet channel by spraying cooling；It is wet Air forms primary air after the processing of Dry absorption device, and the dry passage that primary air enters in dew point evaporative cooler leads to wet After auxiliary air heat exchange in road, it is sent into air-conditioned room.

One of as a preferred solution of the present invention, the dew point evaporative cooler uses the knot of cross-current, adverse current or direct current Configuration formula.

One of as a preferred solution of the present invention, the heat source of the regenerator is in solar energy, geothermal energy, waste heat or waste heat Any one or more combinations.

One of as a preferred solution of the present invention, the working fluid in the open type absorbent circulation be lithium bromide water solution, Lithium chloride solution or ammonia spirit.

Compared with prior art, the beneficial effects of the present invention are:

(1) cold and heat combined supply.By reasonable construction, which can make full use of high humidity gas energy under the conditions of low energy consumption, Realize two purposes, one is to provide cold wind, and two are to provide hot water, realizes energy reuse.

(2) energy conservation and environmental protection.Open type absorbent part uses natural refrigerant to as solution, and regenerator can use low-grade heat It can (such as solar energy or waste heat) driving；Dew point evaporation cooling subsystem adopts water as refrigerant, by air wet-bulb depression (dry sky Gas energy) driving, while effectively recycling condensed water reduces evaporation cooling procedure water consumption for dew point evaporation cooling.System pair For atmospheric ozone layer without destruction, environmental-protecting performance is good, and whole system is in addition to necessary blower fan water pump, without other power-consuming components, Low energy consumption, can reduce peak of power consumption load.

(3) open type absorbent process eliminates the evaporator of traditional enclosed absorption system, and open type absorbent device works in atmospheric pressure Under, requirement of the main component to vacuum degree is reduced, structure is simpler compact；Hot humid gas is directly contacted with absorbent, by force Heat and mass transfer process is changed, for there is significant performance advantage when recovery of latent heat containing humid gas；While Mist heat recovering, It can also be achieved waste gas dedusting and desulfurization.

Detailed description of the invention

Fig. 1 is the flow diagram of the cold-hot combined supply system of the present invention based on open type absorbent circulation；

In figure, 1. open type absorbent devices, 2. solution-water- to-water heat exchanger, 3. regenerators, 4. condensers, 5. subcoolers, the steaming of 6. dew points Send out cooler, 7- solution pump.

Specific embodiment

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1, the cold-hot combined supply system of the present invention based on open type absorbent circulation, including open type absorbent unit, Humid air processing unit and heating unit；The open type absorbent unit includes open type absorbent device 1, solution-water- to-water heat exchanger 2, regeneration Device 3, condenser 4 and subcooler 5；The humid air processing unit includes by the sequentially connected open type absorbent device 1 of air hose and dew Point devaporizer 6；The water vapour that the regenerator 3 generates successively enters dew point evaporation cooling after condenser 4, subcooler 5 Device 6 carries out spraying cooling to air；

The heating unit includes open type absorbent device 1, solution-water- to-water heat exchanger 2, the subcooler 5 and cold connected by water pipe Condenser 4, wherein cold water enters condenser 4, warp through solution-water- to-water heat exchanger 2 and subcooler 5 respectively after the heating of open type absorbent device 1 Hot water after condenser 4 heats up is sent into for heat space.

System described in this patent, which can both provide cold wind, can also provide hot water, realize the cold and hot of open type absorbent circulation For, while high humidity gas energy can be also made full use of, dew point evaporative cooler, as refrigerator, can effectively be dropped using condensed water Lower air temperatures, meanwhile, the heat that absorber generates is absorbed by cold water, further satisfaction the making full use of of heat.

Dew point evaporative cooler 6 used by this patent includes dry passage and wet channel, and part primary air passes through dry logical Road enters adjacent wet channel and forms auxiliary air, and auxiliary air is in wet channel by spraying cooling；Humid air is through Dry absorption Primary air is formed after the processing of device 1, primary air enters the secondary sky in dry passage and wet channel in dew point evaporative cooler 6 After gas heat exchange, it is sent into air-conditioned room.

Multiple structural forms can be selected in dew point evaporative cooler, such as by forming wet channel, partition back between multi-disc partition Dry passage is formed to the two sides of dry passage, several apertures are arranged on partition, spraying cooling equipment is arranged in wet channel, is achieved in The indirect heat exchange of the auxiliary air in primary air and wet channel in dry passage；It can also are as follows: be arranged in parallel in by more root canal roads In cavity, it is dry passage in pipeline, is wet channel outside pipeline, tube wall is equipped at intervals with several apertures, and the part of dry passage is once empty Gas enters wet channel by aperture, and the top of cavity is equipped with spraying cooling equipment, is achieved in primary air and auxiliary air Indirect heat exchange.The specific constructive form of dew point evaporative cooler can be selected according to specific operating condition, and this will not be repeated here.

The process principle and the course of work of system of the present invention are as follows:

Concentrated solution is pumped into absorber 1 by solution pump 7, and concentration reduces after solution absorbs moisture containing humid gas, becomes dilute molten Liquid simultaneously enters regenerator 3, and in the regenerator 3, weak solution is regenerated as dense molten by low grade heat energy (such as solar energy, waste heat) Liquid exchanges heat, temperature reduces, then via described into the solution-water- to-water heat exchanger 2 with the cold water of the absorber 1 outlet Solution pump is again introduced into 1 pair of hot humid gas of the absorber and dehumidifies, and completes a circulation.

The lower cold water of temperature initially enters the heat that absorption dehumidifying process generates in the absorber 1 via water pump；In The outlet of absorber 1 is divided into two-way, enters the high temperature concentrated solution that solution-water- to-water heat exchanger 2 and regenerator 3 export all the way and exchanges heat, separately Enter the high-temperature condensation water that the cooling condenser 4 of subcooler 5 exports all the way；The cold water that solution-water- to-water heat exchanger 2 and subcooler 5 export Enter the vapor that the cooling regenerative process of condenser 4 generates after merging.Cold water is by absorber 1, solution-water- to-water heat exchanger 2, supercooling After device 5 and condenser 4, water temperature is stepped up, and the hot water which generates can be used as technique hot water or domestic hot-water.Regenerator The vapor that 3 regenerative processes generate further cools down after the condensation of condenser 4, through subcooler 5, can be used as dew point evaporative cooler Sprayer Circulation water needed for 6 reduces the water consumption of evaporation cooling procedure.

Hot wet air heating is sucked by blower, forms primary air after the dehumidifying of absorber 1 first, enters back into dew point evaporation cooling The dry passage of device 6, part primary air enter adjacent wet channel in batches from the aperture on heat exchanger plates and form auxiliary air, It carries out caloic with the water through feeding spraying pump spray in wet channel to exchange, temperature reduces, and it is cooling to have stepped through dry and wet channel wall Primary air in dry passage, the cold air distribution that dew point evaporative cooler 6 exports cools down for workshop ventilation or technical process makes With.

A kind of cold-hot combined supply system based on open type absorbent circulation proposed by the present invention is recycled by reasonable construction, Ke Yi Under the conditions of low energy consumption, high humidity gas energy is made full use of, while providing cold wind and hot water, realizes energy reuse.

It should be noted that in the present embodiment, in open type absorbent formula circulation working fluid can be lithium bromide water solution, Ammonia spirit or other working medium pair, regenerator can be driven using low grade heat energy, such as solar energy, waste heat, waste heat.Dew point Devaporizer can be using structure types such as cross-current, adverse current or single flow.

The above be not for limiting the present invention, anyone skilled in the art do not depart from spirit of the invention and In range, possible variation and modification can be made, therefore protection scope of the present invention should be with the claims in the present invention institute Subject to the range defined.