CN104501466A - Thermal regeneration solution dehumidifying unit of ground source heat pump - Google Patents

Thermal regeneration solution dehumidifying unit of ground source heat pump Download PDF

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Publication number
CN104501466A
CN104501466A CN201410806322.5A CN201410806322A CN104501466A CN 104501466 A CN104501466 A CN 104501466A CN 201410806322 A CN201410806322 A CN 201410806322A CN 104501466 A CN104501466 A CN 104501466A
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heat
solution
unit
regeneration
heat pump
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CN201410806322.5A
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CN104501466B (en
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丛旭日
冯婷婷
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Hi-tech limited company
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丛旭日
冯婷婷
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1417Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1458Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention relates to a thermal regeneration solution dehumidifying unit of a ground source heat pump. The thermal regeneration solution dehumidifying unit comprises at least one solution dehumidification unit, at least one solution regeneration unit and at least one solution heat recycling unit; the solution heat recycling unit comprises an upper heat recycler and a lower heat recycler which are same in structure; a solution dehumidification regeneration cycle loop is arranged between the solution dehumidification unit and the solution regeneration unit; a liquid inlet and a liquid outlet of a first heat exchanging device are connected with the ground source heat pump by pipelines; a liquid inlet and a liquid outlet of a second heat exchanging device are communicated with an external heat source or an external cold source by pipelines; a solution heat recycling cycle loop is arranged between the upper heat recycler and the lower heat recycler. The thermal regeneration solution dehumidifying unit has the characteristics of wide applicable range, stable system, low operation cost, high efficiency, high energy efficiency ratio and accurate control.

Description

A kind of earth source heat pump heating power actified solution dehumidifying unit
Technical field
The present invention relates to the dehumidification equipment of field of air conditioning, especially relate to a kind of earth source heat pump heating power actified solution dehumidifying unit.
Background technology
In filed of air conditioning, usually needing summer the air to coming in outdoor to carry out cool-down dehumidification process, usually needing winter the air to coming in outdoor to carry out warming and humidifying process.Mostly dehumidification by condensation processing mode is adopted in traditional air-conditioning system, namely refrigeration machine is adopted to prepare the cooling water of low temperature, circulated in the coil pipe of surface cooler by cooling water and carry out exchange heat with air, air themperature is reduced to below dew point, thus makes air condense out the dehumidification treatments of moisture realization for new wind.The dehumidifying of this processing mode and temperature-fall period are integrated and control and carry out simultaneously, because the cooling water temperature of dehumidification requirements is far below the cooling water temperature needed for cooling, be generally 7 ~ 12 DEG C, on the one hand, under making refrigeration machine be operated in low evaporating temperature situation, cause the coefficient of performance of refrigeration machine lower, on the other hand, though the air humidity after dehumidification by condensation meets the demands but temperature is too low, generally also need reheating just can reach wind pushing temperature requirement, cause the secondary waste of the energy.In addition, the existence due to condensate water makes the places such as surface cooler coil pipe be easy to breed bacteria, go mouldy, and reduces and has sent wind quality, have a strong impact on the quality of room air.
For overcoming the defect that traditional air-conditioning system dehumidification by condensation mode exists, those skilled in the art has researched and developed solution humidifying mode, namely adopt the salting liquid with damping character as working media, directly contact with new wind and carry out caloic exchange, when surface vapor pressure higher than salting liquid of the partial pressure of water vapor of air, salting liquid will absorb the moisture in air; And when surface vapor pressure lower than salting liquid of the partial pressure of water vapor of air, the operative liquid water in salting liquid will become gaseous state and enter in air, thus realizes the adjustment object to air humidity.Solution dehumidification mode is compared with the dehumidification by condensation mode of legacy system, does not need the low-temperature receiver of low temperature (7 ~ 12 DEG C), for utilize resource widely low-grade energy create condition; And the salting liquid in solution dehumidification mode directly contacts with air and carries out heat and mass, by filtration, the sterilizing function of salting liquid, the dust in air, bacterium, mould and some other harmful substance can be removed, effectively can improve the quality of air-supply quality and room air.The independence adopting the air-conditioning system of solution dehumidification mode to achieve temperature and humidity controls, and due to the advantage in economize energy and raising indoor air quality etc., gets the attention and applies.
Solution dehumidification device and regenerative device of solution are the core components of solution dehumidifying air-conditioning system, and its caloic exchange process directly affects the performance of whole air-conditioning system.Current solution dehumidification device and regenerative device of solution mainly adopt heat-insulating heat exchange mode, in this heat exchange mode, salting liquid sprays the tower heat exchanger of filler that middle part arranges from the sprinkler part on top, and salting liquid collection box is set in bottom, in this kind of process, air and spray directly contact to the salting liquid on heat exchanger and carry out heat and mass, realize salting liquid to process the dehumidifying (humidification) of air, salting liquid is regenerated by closed circuit simultaneously, and iterative cycles runs in this way.But adopt that the air-conditioning system ubiquity COP (Energy Efficiency Ratio) of this heat-insulating solution dehumidification device and regenerative device of solution is low, energy consumption is high, to manufacture and operation cost is high, system operational parameters and the uppity problem of precision.
As everyone knows, salting liquid only just has good dehumidifying effect when low temperature and high concentration, once the temperature of salting liquid raises or concentration reduction all can affect effect on moisture extraction and efficiency; Similarly, salting liquid, could the salting liquid of regeneration high concentration effectively by contacting with air when high temperature low concentration, otherwise can affect salting liquid regeneration effect and efficiency.In the process of solution dehumidification or humidification, release or the absorption process of latent heat of phase change can be there is while air and salting liquid carry out heat and mass, make the temperature of air and solution Rapid Variable Design occur simultaneously, and this change exactly suppresses or reduce mass transfer force, as do not passed by latent heat of phase change in time, effect and the efficiency of solution dehumidification and salting liquid regeneration can be affected to a great extent.Adopt the salting liquid dehydrating unit of heat-insulating and regenerating unit due to the defect of self structure, exactly can not fast latent heat of phase change be transferred, the main way addressed this problem at present increases salting liquid internal circulating load, to suppress or diluent air and salting liquid carry out the latent heat of phase change that produces in heat and mass transfer process, this processing mode necessarily journey can only be alleviated the adverse effect of latent heat of phase change, do not tackle the problem at its root, on the one hand because its price of the good salting liquid of hygroscopicity is all higher, increase operation cost, and make the operational factor of total system and precision wayward, on the other hand because the use amount of salting liquid is larger, also overall unit can be caused to strengthen, increase manufacturing cost.The salting liquid dehydrating unit of this heat-insulating and the heat exchanger of regenerative device of solution mainly adopt the comparatively noble metal material manufacture such as copper, steel alloy simultaneously, and its manufacturing cost is also relatively high.In addition, the air-conditioning system of current employing solution dehumidification mode, the main heat pump that leans on provides energy support for salting liquid dehumidifying and regeneration link, consumes a large amount of electric energy, not only make the COP of organized whole's system lower, and can give summer peak of power consumption operation of power networks cause larger pressure.
Summary of the invention
The object of this invention is to provide a kind of earth source heat pump heating power actified solution dehumidifying unit, it has system stability, operation cost is low, efficiency is high, Energy Efficiency Ratio is high, control accurate feature.
In order to solve, the COP that heat-insulating solution dehumidification system exists in prior art is low, energy consumption is high, manufacture and operation cost is high, system operational parameters and the uppity technical problem of precision, a kind of earth source heat pump heating power of the present invention actified solution dehumidifying unit comprises at least one group of solution dehumidification unit, at least one group of regeneration of waste liquor unit, at least one group of solution heat recovery units, and solution dehumidification unit is provided with the first solution spraying device, the first heat-exchanger rig, the first liquor box from top to bottom successively; Regeneration of waste liquor unit is provided with the second solution spraying device, the second heat-exchanger rig, the second liquor box from top to bottom successively; Solution heat recovery units comprises the identical top heat regenerator of structure and bottom heat regenerator, and top heat regenerator and bottom heat regenerator are respectively equipped with the 3rd solution spraying device, the 3rd heat-exchanger rig, the 3rd liquor box from top to bottom successively;
Solution dehumidification regeneration cycle loop is provided with by pipeline between solution dehumidification unit and regeneration of waste liquor unit, first solution spraying device is communicated with the second liquor box, and the first liquor box is communicated with the second solution spraying device, solution dehumidification regeneration cycle loop is provided with heat exchanger and solution circulation pump; The first heat-exchanger rig in solution dehumidification unit adopts the heat exchange mode of inner-cooled or internal heat type, and the inlet of the first heat-exchanger rig is communicated with earth source heat pump by pipeline with liquid outlet;
In regeneration of waste liquor unit, the second heat-exchanger rig adopts the heat exchange mode of inner-cooled or internal heat type, the inlet of the second heat-exchanger rig and liquid outlet to be communicated with external heat source or low-temperature receiver by pipeline and to form heat exchange circulation loop, and heat exchange circulation loop is provided with solution circulation pump;
The 3rd solution spraying device in the heat regenerator of top and the 3rd liquor box are communicated with the 3rd solution spraying device with the 3rd liquor box in the heat regenerator of bottom respectively by pipeline and form solution heat recovery cycle loop, and solution heat recovery cycle loop is provided with solution circulation pump;
Bottom heat regenerator, solution dehumidification unit array from left to right and form new wind---air-supply passage; Top heat returns device, regeneration of waste liquor unit is arranged in order formation return air from right to left---air exhaust passage.
Preferably, new wind---air-supply passage left end is provided with new wind filter, and be provided with filtration and electrostatic precipitator in new wind filter, new wind---air-supply passage right-hand member is provided with breeze fan, and breeze fan adopts frequency conversion fan.
Preferably, return air---air exhaust passage right-hand member is provided with return air low efficient filter and exhaust fan from right to left successively, and exhaust fan adopts frequency conversion fan.
Preferably, also comprise electrically and control unit, electric and control unit is used for electric distribution and controls to adjust operational factor.
Preferably, the second liquor box (203) pipeline that is upper or that be communicated with the second liquor box (203) is provided with water compensating valve.
Preferably, first heat-exchanger rig and the second heat-exchanger rig are multilayer calandria structure, multilayer comb adopts plastic production, and one end of multilayer comb is all communicated with the feed pathway communicated with inlet, and the other end of multilayer comb is all communicated with the liquid outlet channel communicated with liquid outlet.
Alternatively, earth source heat pump is soil heat pump, underground water heat pump or surface water heat pump, soil heat pump is used for solution dehumidification unit and soil carries out exchange heat, underground water heat pump is used for solution dehumidification unit and underground water carries out exchange heat, and surface water heat pump is used for solution dehumidification unit and lake water, river, seawater, municipal wastewater carry out exchange heat.
Alternatively, solution dehumidification unit and the pairing of regeneration of waste liquor unit are arranged, and all arrange independently solution dehumidification regeneration cycle loop between often pair of solution dehumidification unit and regeneration of waste liquor unit.
Alternatively, one section of solution dehumidification regeneration cycle loop common conduit is provided with between solution dehumidification unit and regeneration of waste liquor unit, common conduit comprises the reverse pipeline of two liquid flow path directions, and all solution dehumidification unit and all regeneration of waste liquor unit form the solution dehumidification regeneration cycle loop of mixing by common conduit.
For helping skilled in the art to understand the present invention, remove wet cooling condition below in conjunction with summer and add wet cooling condition winter, respectively to the new wind in the present invention and return air processing procedure, and the running in solution dehumidification regeneration cycle loop and heat exchange circulation loop is described in further detail.
New wind and return air processing procedure:
Summer, outdoor new wind was from new wind except under wet cooling condition---and air-supply passage left end enters, and first carries out filtration and electrostatic precipitation process through new wind filter; Directly contact by bottom heat regenerator and with salting liquid wherein and carry out hot and humid area, make the heat of the new wind of salt-solution absorption wherein to cool new wind, this process can reduce energy consumption >=50% of Fresh air handing; Then new wind directly contacts by solution dehumidification unit and with low temperature and high concentration salting liquid wherein and carries out hot and humid area, and the moisture in new wind becomes liquid state and enters salting liquid, realizes the degree of depth dehumidifying of new wind; New wind after above step process is transported to indoor finally by breeze fan.Indoor return air enters return air from right-hand member---and air exhaust passage, first carries out dust removal by filtration process through return air low efficient filter; Return air after dust removal by filtration is transported to top heat regenerator through exhaust fan, directly contacts carry out hot and humid area with salting liquid wherein, makes return air take away the heat of salting liquid; Then return air directly contacts by regeneration of waste liquor unit and with salting liquid wherein and carries out hot and humid area, and the operative liquid water in low concentration salt solution becomes gaseous state and enters in return air, thus realizes the high concentration regeneration of salting liquid, outside last return air discharge chamber.Breeze fan of the present invention and exhaust fan all adopt frequency conversion fan, can carry out variable frequency adjustment according to indoor and outdoor parameter, to save the stability of the medicine energy and enhancing unit, exhaust air rate is advisable be not less than air output 70%, ideally, to equal 80% effect of air output best for exhaust air rate.
Under adding wet cooling condition winter, the hot and humid area direction of new wind and bottom heat regenerator, solution dehumidification unit, and return air and top heat regenerator, regeneration of waste liquor unit hot and humid area direction, all with summer except wet cooling condition is contrary.New wind is from new wind---and air-supply passage left end enters, and first carries out filtration and electrostatic precipitation process through new wind filter; Directly contact by bottom heat regenerator and with salting liquid wherein again and carry out hot and humid area, make new wind absorb the heat of salting liquid to heat new wind; Then new wind directly contacts by solution dehumidification unit and with high temperature low concentration salt solution wherein and carries out hot and humid area, and the operative liquid water in salting liquid becomes gaseous state and enters in new wind, and what realize new wind adds wet process; New wind after above step process is transported to indoor finally by breeze fan.Indoor return air enters return air from right-hand member---air exhaust passage, and first cross thick effect filter through return air and carry out dust removal by filtration process; Return air after dust removal by filtration is transported to top heat regenerator through exhaust fan and directly contacts with salting liquid wherein and carries out hot and humid area, makes the heat in salt-solution absorption return air; Then return air directly contacts by regeneration of waste liquor unit and with salting liquid wherein and carries out hot and humid area, makes the moisture in return air become liquid state and enters in salting liquid, salting liquid by high concentration regeneration low concentration, outside last return air discharge chamber.
The running in solution dehumidification regeneration cycle loop and heat exchange circulation loop:
Above-mentioned summer, except wet cooling condition and the new wind under adding wet cooling condition winter and return air processing procedure, is provided to drive by salting liquid closed circuit and heat exchange circulation loop and supports.The present invention includes two salting liquid closed circuits and two heat exchange circulation loops, salting liquid is circular flow in two salting liquid closed circuits respectively, in two salting liquid closed circuits, one is the solution dehumidification regeneration cycle loop between solution dehumidification unit and regeneration of waste liquor unit; Another is the solution heat recovery cycle loop between top heat regenerator and bottom heat regenerator; In two heat exchange circulation loops, one is the heat exchange circulation loop in regeneration of waste liquor unit between the second heat-exchanger rig and external heat source or low-temperature receiver; Another is the heat exchange circulation loop in earth source heat pump and regeneration of waste liquor unit between the first heat-exchanger rig.
Summer is except under wet cooling condition, in solution dehumidification regeneration cycle loop running between solution dehumidification unit and regeneration of waste liquor unit, the salting liquid of low temperature and high concentration carries out in spray process in solution dehumidification unit, directly contact with by new wind wherein and carry out hot and humid area, partial pressure of water vapor in this stylish wind is higher than the surface vapor pressure of salting liquid, salting liquid can absorb moisture in new wind and carry out dehumidification treatments from realization to new wind, and the salting liquid of high concentration is owing to absorbing moisture in new wind thus concentration reduces.Then to be transported to the second solution spraying device in regeneration of waste liquor unit from the first liquor box solution dehumidification unit by circulating pump, carry out in regeneration of waste liquor unit in spray process, directly contact with by return air wherein and carry out hot and humid area, during the surface vapor pressure of the partial pressure of water vapor now in return air lower than salting liquid, operative liquid water in low concentration salt solution can become gaseous state and enter in return air, heated by the second heat-exchanger rig simultaneously, make the salting liquid of salting liquid regeneration high-temperature high concentration, then the salting liquid of high-temperature high concentration is made to become the salting liquid of low temperature and high concentration by the heat exchanger on this closed circuit, the the first solution spraying device finally by another circulating pump the salting liquid of low temperature and high concentration being transported to solution dehumidification unit sprays, iterative cycles like this runs.
In solution heat recovery cycle loop running between top heat regenerator and bottom heat regenerator, salting liquid is sprayed by the 3rd spray equipment of bottom heat regenerator, directly contact and carry out hot and humid area in spray process with by new wind wherein, the thermal temperature of the new wind of salt-solution absorption raises, then salting liquid temperature raised by solution circulation pump is transported to the 3rd spray equipment of top heat regenerator from the 3rd liquor box of bottom heat regenerator, directly contact and carry out hot and humid area in spray process with by return air wherein, return air takes away the heat in salting liquid, salting liquid temperature reduces, the 3rd spray equipment of bottom heat regenerator is flow to again from the 3rd liquor box of top heat regenerator, iterative cycles like this runs.
In heat exchange circulation loop running between the first heat-exchanger rig in earth source heat pump and regeneration of waste liquor unit, summer, underground water or river, lake, marine deep water is natural cold source, circulated by earth source heat pump and constantly pass into low-temperature receiver to the first heat-exchanger rig in solution dehumidification unit, take away the latent heat of phase change (moisture now in air because of liquefy heat can be released) produced in salting liquid dehumidification process in time, and by heat delivery to underground, the temperature in salting liquid dehumidification process can be effectively avoided to raise, make the temperature levels that salting liquid remains lower, keep long-acting dehumidifying effect.
In the second heat-exchanger rig in regeneration of waste liquor unit and the heat exchange circulation loop running between external heat source, external heat source constantly provides thermal source to the second heat-exchanger rig by circulation, the latent heat of phase change (moisture now in salting liquid can absorb heat because becoming gaseous state) produced in timely make-up solution regenerative process, the temperature in salting liquid regenerative process is avoided to reduce, make the temperature levels that salting liquid remains higher, improve regeneration efficiency and the effect of salting liquid.External heat source can utilize hot water or the used heat of solar energy, municipal heating systems, also can utilize the used heat of BCHP system.
Under adding wet cooling condition in the winter time, the heat exchange direction in salting liquid closed circuit and heat exchange circulation loop and summer except wet cooling condition contrary.In solution dehumidification regeneration cycle loop running between solution dehumidification unit and regeneration of waste liquor unit, the salting liquid of high temperature low concentration carries out in spray process in solution dehumidification unit, directly contact with by new wind wherein and carry out hot and humid area, partial pressure of water vapor in this stylish wind is lower than the surface vapor pressure of salting liquid, operative liquid water in high temperature low concentration salt solution can become gaseous state and enter in new wind, thus realize adding wet process to new wind, and salting liquid to enter in new wind thus concentration raises because operative liquid water wherein becomes gaseous state.Then from the first liquor box of solution dehumidification unit, salting liquid is transported to the second solution spraying device of regeneration of waste liquor unit by circulating pump, carry out in regeneration of waste liquor unit in spray process, directly contact with by return air wherein and carry out hot and humid area, during the surface vapor pressure of the partial pressure of water vapor now in return air higher than salting liquid, salting liquid can absorb the moisture in return air thus realize low concentration regeneration.By the heat exchanger on this closed circuit, the salting liquid of low-temperature and low-concentration is become the salting liquid of high temperature low concentration subsequently, and the salting liquid of high temperature low concentration is transported to the first solution spraying device of solution dehumidification unit by another circulating pump.Iterative cycles like this runs.It should be noted that, under adding wet cooling condition in the winter time, often only often can not meet the regeneration requirements of low concentration salt solution by the moisture in salt-solution absorption return air, need supplement by water compensating valve the low concentration requirement that a certain amount of water can meet salting liquid.
In solution heat recovery cycle loop running between top heat regenerator and bottom heat regenerator, salting liquid is undertaken spraying by the 3rd spray equipment of bottom heat regenerator and carries out hot and humid area with directly being contacted by new wind wherein, new wind absorbs the heat in salting liquid, salting liquid temperature is reduced, then from the 3rd liquor box of bottom heat regenerator, salting liquid is transported to the 3rd spray equipment of top heat regenerator by the solution circulation pump in this closed circuit, carry out spraying in the heat regenerator of top and directly contact with the return air passed through wherein and carry out hot and humid area, heat in salt-solution absorption return air and temperature raise, and then the 3rd spray equipment of bottom heat regenerator is flow to from the 3rd liquor box of top heat regenerator, iterative cycles like this runs.
In heat exchange circulation loop running in earth source heat pump and regeneration of waste liquor unit between the first heat-exchanger rig, winter, underground water or river, lake, marine deep water are natural thermal source, circulated by earth source heat pump and constantly pass into thermal source to the first heat-exchanger rig in solution dehumidification unit, the latent heat of phase change (aqueous water now in salting liquid becomes gaseous state can absorb heat) produced in timely make-up solution humidification is heated to the salting liquid of spray, the temperature levels making salting liquid remain higher, keeps long-acting humidification capability.
In heat exchange circulation loop running in regeneration of waste liquor unit between the second heat-exchanger rig and external source, external source provides low-temperature receiver to the second heat-exchanger rig continuously, take away the latent heat of phase change (moisture now in return air can release heat because of becoming liquid state) produced in solution reclaiming process in time, the temperature in salting liquid regenerative process is avoided to raise, make the temperature levels that salting liquid remains lower, improve salting liquid regeneration efficiency and effect.Under adding wet cooling condition winter, external source can adopt cooling water, and common running water or lake water and river also can be used as low-temperature receiver.
The present invention carries out distribution and operational factor control by electric and control unit to equipment each in unit, electric and control unit comprises device and the casings such as detecting sensor, actuator, DDC or PLC single-chip microcomputer, the automatic management of unit can be realized by electric and control unit, improve stability and the precision of unit operation.
Compare with the salting liquid dehumidification system of heat-insulating with traditional air conditioner dehumidification system, a kind of earth source heat pump heating power of the present invention actified solution dehumidifying unit has the following advantages:
1) the present invention adopts salting liquid dehumidification mode, low-grade energy can be utilized to drive, do not need the cooling water that serviceability temperature is very low, simultaneously also there is not coil pipe, can effective economize energy, avoids bacterium, growing of going mouldy, raising indoor air quality.
2) the present invention adopts earth source heat pump to provide low-temperature receiver or thermal source for solution dehumidification unit, and the electric energy that only earth source heat pump consumption is a small amount of can obtain sufficient and stable Cooling and Heat Source, and energy consumption is low, and Energy Efficiency Ratio is high.
3) the present invention adopts external heat source or low-temperature receiver to support for regeneration of waste liquor unit provides to drive, and can utilize hot water or the used heat of solar energy, municipal heating systems, also can utilize the waste heat driven of BCHP system, can realize the cascade utilization of the energy.
4) heat exchange mode of cold or interior heat in the first heat-exchanger rig in the present invention and the second heat-exchanger rig adopt, the adverse effect that can effectively avoid latent heat of phase change to produce, the temperature levels making salting liquid keep stable, keeps long-acting stable dehumidifying or humidification capability, strengthens the stability of unit.
5) the present invention adopts the heat exchange mode of interior cold or interior heat effectively can also reduce the amount of recycling of salting liquid, cuts operating costs, reduces unit volume simultaneously, reduces unit cost.In addition, the first heat-exchanger rig and the second heat-exchanger rig adopt plastics multilayer calandria structure, can maximize the performance of cold or interior hot heat exchange mode in playing, and reduce manufacturing cost.
6) the solution dehumidification unit in the present invention, solution again unit, solution heat recovery units, surface cooler combine flexibly, can independent assortment according to actual needs, its connected mode also can adopt discrete layout or combination to arrange multiple different mode, to adapt to different spatial depiction.
Below in conjunction with accompanying drawing illustrated embodiment, a kind of visual mirror group of pointing instrumentation of the present invention and image collecting device integrated system are described in further detail:
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first embodiment of a kind of earth source heat pump heating power of the present invention actified solution dehumidifying unit;
Fig. 2 is the schematic diagram of a kind of earth source heat pump heating power of the present invention actified solution dehumidifying unit the second embodiment;
Fig. 3 is the schematic diagram of the third embodiment of a kind of earth source heat pump heating power of the present invention actified solution dehumidifying unit;
Fig. 4 is the schematic diagram of a kind of earth source heat pump heating power of the present invention actified solution dehumidifying unit the 4th kind of embodiment.
Detailed description of the invention
In the schematic diagram of the first embodiment of a kind of earth source heat pump heating power of the present invention as shown in Figure 1 actified solution dehumidifying unit, comprise one group of solution dehumidification unit, 1, one group of regeneration of waste liquor unit, 2, one group of solution heat recovery units 3, solution dehumidification unit 1 is provided with the first solution spraying device 101, first heat-exchanger rig 102, first liquor box 103 from top to bottom successively; Regeneration of waste liquor unit 2 is provided with the second solution spraying device 201, second heat-exchanger rig 202, second liquor box 203 from top to bottom successively; Solution heat recovery units 3 comprises the identical top heat regenerator 31 of structure and bottom heat regenerator 32, and top heat regenerator 31 and bottom heat regenerator 32 are respectively equipped with the 3rd solution spraying device, the 3rd heat-exchanger rig, the 3rd liquor box from top to bottom successively.
By install pipeline solution dehumidification regeneration cycle loop between solution dehumidification unit 1 and regeneration of waste liquor unit 2, first solution spraying device 101 is communicated with the second liquor box 203, and the first liquor box 103 is communicated with the second solution spraying device 201, salting liquid circular flow in solution dehumidification regeneration cycle loop, solution dehumidification regeneration cycle loop is provided with heat exchanger 4, heat exchanger 4 is for being lowered the temperature by salting liquid wherein or heating, the pipeline of connection first solution spraying device 101 and the second solution spraying device 201 arranges solution circulation pump 5 respectively, for solution dehumidification regeneration cycle loop provides circulation driving force.
In solution dehumidification unit 1 of the present invention, the first heat-exchanger rig 102 adopts the heat exchange mode of inner-cooled or internal heat type, the inlet of the first heat-exchanger rig 102 is communicated with earth source heat pump 6 by pipeline with liquid outlet, by earth source heat pump 6 for the first heat-exchanger rig 102 provides low-temperature receiver or thermal source, salting liquid is made to carry out keeping stable temperature levels in spray process and keeping long-acting dehumidifying or humidification capability in solution dehumidification unit 1 by the first heat-exchanger rig 102.In regeneration of waste liquor unit 2, the second heat-exchanger rig 202 also adopts the heat exchange mode of inner-cooled or internal heat type, the inlet of the second heat-exchanger rig 202 and liquid outlet to be communicated with external heat source or low-temperature receiver by pipeline and to form heat exchange circulation loop, by the second heat-exchanger rig 202, salt is dissolved in regeneration of waste liquor unit to carry out keeping stable temperature levels in spray process, keeps salting liquid regeneration effect and efficiency.The 3rd solution spraying device in top heat regenerator 31 and the 3rd liquor box are communicated with the 3rd solution spraying device with the 3rd liquor box in bottom heat regenerator 32 respectively by pipeline and form solution heat recovery cycle loop, the pipeline being communicated with the 3rd solution spraying device in top heat regenerator 31 arranges solution circulation pump 6, in order to provide salting liquid circulation driving force.
Bottom heat regenerator 32, solution dehumidification unit 1 array from left to right and form new wind---air-supply passage; Top heat regenerator 31, regeneration of waste liquor unit 2 are arranged in order formation return air from right to left---air exhaust passage.By at new wind---the left end of air-supply passage arranges new wind filter 12, and effect or sub-high efficiency filter and electrostatic precipitator in arranging in new wind filter 12, can dust effectively in the new wind of filtering or impurity, new wind quality can be improved and avoid the contamination by dust salting liquid of new wind; By at new wind---air-supply passage right-hand member arranges breeze fan 13, and new wind can be guided to move towards and wind speed, and breeze fan 13 adopts frequency conversion fan can carry out variable frequency adjustment according to indoor and outdoor parameter simultaneously, with economize energy, strengthens the stability of unit operation.By at return air---air exhaust passage right-hand member also sets gradually return air low efficient filter 14 and exhaust fan 15 from right to left, dust in same energy filtering return air or impurity, avoid the contamination by dust salting liquid in return air, exhaust fan 15 is utilized to guide return air to move towards and wind speed, exhaust fan 15 adopts frequency conversion fan with economize energy equally, strengthens the stability of unit operation.
The present invention also comprises electrically and control unit (not shown), electrically and control unit for controlling the electric distribution of each parts and operational factor and regulate, electric and control unit comprises the devices such as detecting sensor, actuator, DDC or PLC single-chip microcomputer, the automatic management of unit can be realized by electric and control unit, improve stability and the precision of unit operation.The pipeline be communicated with on second liquor box or with the second liquor box does not also have water compensating valve (not shown), and water compensating valve is salting liquid moisturizing under being used for winter condition, meets salting liquid low concentration regeneration requirements.
It should be noted that, first heat-exchanger rig 102 and the second heat-exchanger rig 202 are designed to plastics multilayer calandria structure by the present invention, and one end of multilayer comb is all communicated with the feed pathway communicated with inlet, the other end of multilayer comb is all communicated with the liquid outlet channel communicated with liquid outlet.Adopt the heat-exchanger rig of this kind of structure, not only can give full play to the advantage of interior cold or interior hot heat exchange mode, and can manufacturing cost be saved.If do not consider manufacturing cost, the first heat-exchanger rig 102 and the second heat-exchanger rig 202 also can adopt the metal material such as copper and steel alloy to make.In addition, earth source heat pump 6 of the present invention can adopt soil heat pump, underground water heat pump or surface water heat pump, also can be the heat pump that other utilize natural cold and heat source.Soil heat pump is used for solution dehumidification unit 1 and carries out exchange heat with soil, underground water heat pump is used for solution dehumidification unit 1 and carries out exchange heat with underground water, and surface water heat pump is used for solution dehumidification unit 1 and carries out exchange heat with lake water, river, seawater, municipal wastewater.Natural low-temperature receiver or thermal source can be obtained by earth source heat pump 6, improve the Energy Efficiency Ratio of unit.
In the schematic diagram of a kind of earth source heat pump heating power of the present invention as shown in Figure 2 actified solution dehumidifying unit the second embodiment, with the first embodiment unlike, solution heat recovery units 3 is set to two groups by present embodiment, enhances the energy saving performance of unit.In the schematic diagram of the third embodiment of a kind of earth source heat pump heating power of the present invention as shown in Figure 3 actified solution dehumidifying unit, with the first embodiment unlike, the third embodiment is provided with two groups of solution dehumidification unit, 1, two groups of regeneration of waste liquor unit, 2, one group of solution heat recovery units 3, in two groups of regeneration of waste liquor unit 2, the inlet of the second heat-exchanger rig 202 is all communicated with external heat source or low-temperature receiver with liquid outlet and forms exchange heat closed circuit, and the second heat-exchanger rig of two groups of solution dehumidification unit 1 is all communicated with earth source heat pump 6 and forms exchange heat closed circuit.Two are made into setting between two groups of solution dehumidification unit 1 and two groups of regeneration of waste liquor lists 2, a solution dehumidification regeneration cycle loop is set respectively between often pair of solution dehumidification unit 1 and regeneration of waste liquor list 2, and heat exchanger 5 and solution circulation pump 6 are set on respective solution dehumidification regeneration cycle loop, the salting liquid between two groups of solution dehumidification unit 1 and two groups of regeneration of waste liquor lists 2 is circulated and is independent of each other.What this vibrational power flow can improve unit should just ability, and after one group of two groups of solution dehumidification unit 1 and two groups of regeneration of waste liquor lists 2 lose effect, another group can be run as usual.
It should be noted that, in the third embodiment, solution dehumidification unit 1 and regeneration of waste liquor unit 2 are not limited to arrange two groups, more groups can be arranged according to actual needs, solution dehumidification regeneration cycle loop between solution dehumidification unit 1 and regeneration of waste liquor unit 2 is also not limited to the set-up mode matched, can solution dehumidification regeneration cycle loop common conduit be set between all solution dehumidification unit 1 and all regeneration of waste liquor unit 2, common conduit is the reverse pipeline of two liquid flow path directions, all pipelines of connection first solution spraying device 101 and the pipeline of all connections first liquor box 103 is allowed to form with the pipeline of all pipeline and all connections second solution spraying device 201 that are connected the second liquor box 203 the solution dehumidification regeneration cycle loop mixed by common conduit, can heat exchanger 4 and solution circulation pump 5 be located in common conduit, also only heat exchanger 4 can be located in common conduit and solution circulation pump 5 is set respectively on the pipeline of all connection first solution spraying devices 101 and all connections second solution spraying device 201.
In the schematic diagram of a kind of earth source heat pump heating power of the present invention as shown in Figure 4 actified solution dehumidifying unit the 4th kind of embodiment, with the third embodiment unlike, two groups of solution dehumidification unit, 1, two groups of regeneration of waste liquor unit, 2, one group of solution heat recovery units 3 is provided with in present embodiment, solution dehumidification regeneration cycle loop common conduit is set between two groups of solution dehumidification unit 1 and two groups of regeneration of waste liquor unit 2, forms the solution dehumidification regeneration cycle loop of mixing.This vibrational power flow can reduce unit volume, adapts to less space better.
Above embodiment is only the description carried out the preferred embodiment of the present invention; the restriction not request protection domain of the present invention carried out; under not departing from the present invention and designing the prerequisite of spirit; the various forms of distortion that this area engineers and technicians make according to technical scheme of the present invention, all should fall in protection domain that claims of the present invention determine.

Claims (9)

1. an earth source heat pump heating power actified solution dehumidifying unit, comprise at least one group of solution dehumidification unit (1), at least one group of regeneration of waste liquor unit (2), at least one group of solution heat recovery units (3), it is characterized in that: described solution dehumidification unit (1) is provided with the first solution spraying device (101), the first heat-exchanger rig (102), the first liquor box (103) from top to bottom successively; Regeneration of waste liquor unit (2) is provided with the second solution spraying device (201), the second heat-exchanger rig (202), the second liquor box (203) from top to bottom successively; Solution heat recovery units (3) comprises the identical top heat regenerator (31) of structure and bottom heat regenerator (32), and top heat regenerator (31) and bottom heat regenerator (32) are respectively equipped with the 3rd solution spraying device, the 3rd heat-exchanger rig, the 3rd liquor box from top to bottom successively;
By install pipeline solution dehumidification regeneration cycle loop between solution dehumidification unit (1) and regeneration of waste liquor unit (2), first solution spraying device (101) is communicated with the second liquor box (203), and the first liquor box (103) is communicated with the second solution spraying device (201), solution dehumidification regeneration cycle loop is provided with heat exchanger (4) and solution circulation pump (5); The first heat-exchanger rig (102) in solution dehumidification unit (1) adopts the heat exchange mode of inner-cooled or internal heat type, and the inlet of the first heat-exchanger rig (102) is communicated with earth source heat pump (6) by pipeline with liquid outlet;
In regeneration of waste liquor unit (2), the second heat-exchanger rig (202) adopts the heat exchange mode of inner-cooled or internal heat type, the inlet of the second heat-exchanger rig (202) and liquid outlet to be communicated with external heat source or low-temperature receiver by pipeline and to form heat exchange circulation loop, and heat exchange circulation loop is provided with solution circulation pump (5);
The 3rd solution spraying device in top heat regenerator (31) and the 3rd liquor box to be communicated with the 3rd solution spraying device by pipeline and the 3rd liquor box in bottom heat regenerator (32) and to form solution heat recovery cycle loop, and solution heat recovery cycle loop is provided with solution circulation pump (5);
Bottom heat regenerator (32), solution dehumidification unit (1) array from left to right and form new wind---air-supply passage; Top heat returns device (31), regeneration of waste liquor unit (2) is arranged in order formation return air from right to left---air exhaust passage.
2. according to a kind of earth source heat pump heating power actified solution dehumidifying unit according to claim 1, it is characterized in that: new wind---air-supply passage left end is provided with new wind filter (7), filtration and electrostatic precipitator is provided with in new wind filter (7), new wind---air-supply passage right-hand member is provided with breeze fan (8), and breeze fan (8) adopts frequency conversion fan.
3. according to a kind of earth source heat pump heating power actified solution dehumidifying unit according to claim 2, it is characterized in that: return air---air exhaust passage right-hand member is provided with return air low efficient filter (9) and exhaust fan (10) from right to left successively, and exhaust fan (10) adopts frequency conversion fan.
4., according to a kind of earth source heat pump heating power actified solution dehumidifying unit according to claim 3, it is characterized in that: also comprise electrically and control unit, electric and control unit is used for electric distribution and controls to adjust operational factor.
5. according to a kind of earth source heat pump heating power actified solution dehumidifying unit according to claim 4, it is characterized in that: the second liquor box (203) pipeline that is upper or that be communicated with the second liquor box (203) is provided with water compensating valve.
6. according to a kind of earth source heat pump heating power actified solution dehumidifying unit according to claim 5, it is characterized in that: described first heat-exchanger rig (102) and the second heat-exchanger rig (202) are multilayer calandria structure, multilayer comb adopts plastic production, one end of multilayer comb is all communicated with the feed pathway communicated with inlet, and the other end of multilayer comb is all communicated with the liquid outlet channel communicated with liquid outlet.
7. according to a kind of earth source heat pump heating power actified solution dehumidifying unit according to claim 6, it is characterized in that: described earth source heat pump (6) is soil heat pump, underground water heat pump or surface water heat pump, soil heat pump is used for solution dehumidification unit (1) and carries out exchange heat with soil, underground water heat pump is used for solution dehumidification unit (1) and carries out exchange heat with underground water, and surface water heat pump is used for solution dehumidification unit (1) and carries out exchange heat with lake water, river, seawater, municipal wastewater.
8. according to a kind of earth source heat pump heating power actified solution dehumidifying unit described in any one of claim 1-7, it is characterized in that: described solution dehumidification unit (1) and regeneration of waste liquor unit (2) pairing are arranged, and all arrange independently solution dehumidification regeneration cycle loop between often pair of solution dehumidification unit (1) and regeneration of waste liquor unit (2).
9. according to a kind of earth source heat pump heating power actified solution dehumidifying unit described in any one of claim 1-7, it is characterized in that: between described solution dehumidification unit (1) and regeneration of waste liquor unit (2), be provided with one section of solution dehumidification regeneration cycle loop common conduit, common conduit comprises the reverse pipeline of two liquid flow path directions, and all solution dehumidification unit (1) and all regeneration of waste liquor unit (2) form the solution dehumidification regeneration cycle loop of mixing by common conduit.
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