CN102252381A - Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine - Google Patents
Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 72
- 238000011084 recovery Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000007791 dehumidification Methods 0.000 claims abstract description 88
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000010354 integration Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 56
- 230000008929 regeneration Effects 0.000 claims description 56
- 238000011069 regeneration method Methods 0.000 claims description 56
- 239000000498 cooling water Substances 0.000 claims description 16
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- 239000008400 supply water Substances 0.000 claims description 6
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Abstract
The invention relates to a central air-conditioning system combining the independent regulation of the temperature and humidity of heat recovery solution of a screw machine. The central air-conditioning system consists of a two-stage heat recovery circular regenerated solution system of the screw machine, an air-conditioning temperature reduction water system, a temperature reduction and dehumidification air conditioner processing system and a central air-conditioning comprehensive integration control system which combines the independent regulation of the temperature and humidity of two-stage heat recovery regenerated solution of the screw machine, wherein solution for temperature reduction and dehumidification is filled into the circular regenerated solution system; clean water is filled into the air-conditioning temperature reduction water system; and superconducting solution is filled between a heat exchanger and a solution regenerator. In the central air-conditioning system which combines the independent regulation of the temperature and humidity of heat recovery solution of the screw machine, the regenerated solution is subjected to two-stage heat recovery by utilizing the high-temperature exhaust gas of a screw air conditioner to be used for the dehumidification of a temperature reduction and dehumidification air conditioner; and the temperature is reduced by using the original air-conditioning water system, so the energy for the dehumidification is reduced, the temperature of the air-conditioning water for the temperature reduction is raised, the efficiency of an air-conditioning host is improved, and the consumption of a water pump, a cooling power and the air-conditioning host of the original air-conditioning water system is reduced greatly.
Description
Technical field
The present invention relates to a kind of central air conditioner system, particularly a kind of central air conditioner system in conjunction with screw rod machine recuperation of heat solution humiture independent regulation.
Background technology
Air-conditioning bound pair solution cool-down dehumidification has obtained utilization and popularization energetically in the utilization of central air-conditioning at present, obtained the most experts and scholars' of educational circles approval, in actual use, because considerable energy saving effectiveness, central air-conditioning energy-conservation played good impetus, but existing solution-type humiture independence damping unit all is an autonomous device, drive by electric energy, though energy-saving effect is obvious, be used in particular for the whole fresh wind air-condition system and produce the energy-conservation of dry new wind, but because it has the refrigerant loop of refrigeration, need increase power load again, the equipment scale of construction is big, can not find broad application, can't reach optimized energy saving of system.
The steam discharge recuperation of heat of air-conditioning screw rod machine, the recuperation of heat air-conditioning unit of output hot water can both be done by present many air-conditioning equipment factory, because the consumption of refrigeration health hot water in season is little, and the heat exhaust of air-conditioner host is big, so, the actual amount of energy saving of air-conditioning unit of heat recovery function and little is arranged.
The utilization of solution cool-down dehumidification technology, mainly be the circular regeneration of dehumidification solution, the dynamic process control of hygroscopic solution concentration and the required moisture removal of whole air condition though proposition is also arranged with the viewpoint that air conditioner recuperation of heat hot water comes actified solution, does not have concrete solution, it is the viewpoint of a notion, to the control of regeneration concentration, regeneration heat content, moisture removal, the cooling water temperature, cool-down dehumidification air-conditioning set structure etc. does not all have research.
Existing central air-conditioning all is that the chilled water by refrigeration machine is that low-temperature receiver comes cool-down dehumidification, and wherein the latent heat load duty is transferred the 30-65% of load.Especially in moist area of southern China, the steam discharge recuperation of heat regeneration dehumidification solution of employing air-conditioning screw rod machine solves the latent heat of air-conditioning, the water system of former air-conditioning only is used for cooling, the screw rod machine heat extraction that is to say original waste is used for dehumidifying, originally accounted for the latent heat of cooling load nearly 50%, be that energy free consumption solves now, mean that one causes that the revolutionary technology of central air-conditioning produces.In theory, this new-type central air conditioner system is than conventional central air-conditioning system synthesis energy saving 30-65%, to the water loop water pump, and the air-conditioner blower fan, the air conditioner refrigerating main frame can be energy-conservation greatly.And, reducing heat extraction to environment, central air conditioner system is sanitation and hygiene more.
Summary of the invention
The purpose of this invention is to provide a kind of central air conditioner system, be applicable to various central air conditioner systems field of employment in conjunction with screw rod machine recuperation of heat solution humiture independent regulation.Adopt screw rod machine twin-stage recuperation of heat actified solution system and device circular regeneration dehumidification solution, dehumidification solution is used for the dehumidifying of cool-down dehumidification air-conditioner, make former air-conditioner water system only be used for cooling, former air-conditioner water system load reduce near half, significantly reduce former refrigeration machine with can, transporting water is with can; Simultaneously, screw rod machine twin-stage recuperation of heat actified solution system and device significantly reduces the cooling tower heat extraction, even, when a large amount of actified solution, can be without the chilled(cooling) water return (CWR), 100% saves the energy resource consumption of cooling water pump, cooling tower.Screw rod machine twin-stage recuperation of heat actified solution is the heat extraction actified solution that utilizes original air conditioner, because the air conditioner heat extraction greater than refrigerating capacity, has been equivalent to newly utilize the energy of an air conditioner, the heat of recuperation of heat is energy free consumption.Than conventional central air-conditioning system synthesis energy saving 30-65%.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of central air conditioner system in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, by screw rod machine twin-stage recuperation of heat circular regeneration solution system, the air-conditioning temperature-reducing water system, cool-down dehumidification air-conditioner treatment system, central air-conditioning comprehensive integration control system in conjunction with the humiture independent regulation of screw rod machine twin-stage recuperation of heat actified solution is formed, the solution of can cool-down dehumidification effect in the circular regeneration solution system, can clean water in the air-conditioning temperature-reducing water system, can superconduction solution between heat exchanger and solution regenerator.
Described screw rod machine twin-stage recuperation of heat circular regeneration solution system by: by the heat exchanger air pipe and connect condenser, described condenser is the condenser of screw rod unit or the condenser of refrigerating circuit, by condenser, electronic ratio adjusting control valve on the heat recovering heat exchanger is controlled the size of tolerance separately, regulates the actified solution ability; The one-level regenerator connects the one-level regenerator, and the secondary regenerator connects the secondary regenerator; Weak solution is back to back the liquid reservoir, send by the solution canned motor pump, by motor-driven valve conversion work state, when a large amount of supply solution, then the 3rd solution motor-driven valve, the second solution motor-driven valve are opened, and the first solution motor-driven valve closes, then solution enters the I and II regenerator respectively, solution is regenerated, and regeneration back solution enters the liquor charging reservoir, is sent in the liquid reservoir solution and delivers to cool-down dehumidification air-conditioning unit by the solution canned motor pump; When the need concentrated solution, then the 3rd solution motor-driven valve, the second solution motor-driven valve close, the first solution motor-driven valve is opened, then solution is introduced into the regeneration of one-level regenerator, enter the regeneration of secondary regenerator after the regeneration of one-level regenerator again, regeneration back solution enters the liquor charging reservoir, and solution is delivered to cool-down dehumidification air-conditioning unit by the solution canned motor pump in the liquor charging reservoir; When the moisture removal slump in demand, the solution motorized adjustment valve regulation amount of opening, then the part solution of delivering to cool-down dehumidification air-conditioning unit by the solution canned motor pump directly enters back the liquid reservoir and enters further concentrated.
Described cool-down dehumidification air-conditioner treatment system connects water loop by: cool-down dehumidification module and is connected solution loop with the cool-down dehumidification module and forms, the cool-down dehumidification module connects water loop: chilled water supplies water and one the tunnel connects former air-conditioner surface cooler, described former air-conditioner surface cooler water side connects the chilled water backwater, supply water another road of described chilled water connects electric two-way valve in dehumidification module, water route one end of electric two-way valve adapter sleeve tubular type heat exchanger, the water route other end of double pipe heat exchanger connects the chilled water backwater;
The cool-down dehumidification module connects solution loop: a end that is connected the electric three-way valve by the next concentrated solution of screw rod machine twin-stage recuperation of heat circular regeneration solution system, the a end of electric three-way valve connects the PWM motor-driven valve, solution loop one end of PWM motor-driven valve adapter sleeve tubular type heat exchanger, the solution loop other end that connects double pipe heat exchanger connects the inlet of the liquid distributor of direct gas-liquid heat exchange device, directly the liquid outlet of the liquid collector of gas-liquid heat exchange device connects solution circulation pump, solution circulation pump connects the electric three-way valve, and the b end of described electric three-way valve is connected to screw rod machine twin-stage recuperation of heat circular regeneration solution system.
The central air-conditioning comprehensive integration control system of described humiture independent regulation in conjunction with screw rod machine twin-stage recuperation of heat actified solution is according to the principle of distributed DCS control, pressing the RS-485 bus connects, by: central integrated switch board connects fan coil working condition acquiring processing module, the integrated switch board of central authorities connects cool-down dehumidification wind cabinet DCS control cabinet, the integrated switch board of central authorities connects air-conditioning place humiture collection device, the integrated switch board of central authorities connects machine room signals collecting cabinet, the integrated switch board junction chamber external environment of central authorities is gathered cabinet, the integrated switch board of central authorities connects the chilled water pump switch board, the integrated switch board of central authorities connects the cooling water pump switch board, the integrated switch board of central authorities connects the cooling tower switch board, the integrated switch board of central authorities connects solution regeneration DCS control cabinet, the integrated switch board of central authorities connects the communications bridge connection module, and central integrated switch board connects the air-conditioner host control cabinet.
Link to each other by two pipelines between described solution regenerator and heat exchanger, constitute closed circuit, can superconduction solution in the closed circuit, by: the hot water of heat exchanger goes out end connection regenerator and enters the hot junction, regenerator goes out the hot junction and connects the solution canned motor pump, and the solution canned motor pump connects heat exchanger hot water inlet side.
Described heat exchanger and air-conditioner condenser also connect, the gas flow of crossing that distributes condenser and heat exchanger by the pressure drop of cooling capacity formation, by: the air-conditioner host exhaust end connects the PWM motor-driven valve, the PWM motor-driven valve connects heat exchanger gas circuit one end, and the described heat exchanger gas circuit other end is connected to air-conditioner host expansion valve front end.
When described screw rod machine twin-stage recuperation of heat circular regeneration solution system was supplied solution in a large number: weak solution entered back the liquid reservoir by cool-down dehumidification air-conditioner treatment system pipeline, described time the liquid reservoir connects the solution canned motor pump, solution canned motor pump one tunnel connects the 3rd solution motor-driven valve, the 3rd solution motor-driven valve connects the secondary regenerator, the end that goes out of described secondary regenerator connects the liquor charging reservoir, another road connects the one-level regenerator, the end that goes out of secondary regenerator connects the second solution motor-driven valve, the second solution motor-driven valve connects the liquor charging reservoir, described liquor charging reservoir connects the solution canned motor pump, and the solution canned motor pump connects the cool-down dehumidification air-conditioner by pipeline.
When described screw rod machine twin-stage recuperation of heat circular regeneration solution system needed concentrated solution: weak solution entered back the liquid reservoir by cool-down dehumidification air-conditioner treatment system pipeline, described time the liquid reservoir connects the solution canned motor pump, the solution canned motor pump connects the one-level regenerator, the end that goes out of one-level regenerator connects the first solution motor-driven valve, the 3rd solution motor-driven valve, the second solution motor-driven valve cuts out, the described first solution motor-driven valve connects the secondary regenerator, the end that goes out of described secondary regenerator connects the liquor charging reservoir, described liquor charging reservoir connects the solution canned motor pump, and the solution canned motor pump connects the cool-down dehumidification air-conditioner by pipeline.
During described screw rod machine twin-stage recuperation of heat circular regeneration solution system moisture removal slump in demand: weak solution enters back the liquid reservoir by cool-down dehumidification air-conditioner treatment system pipeline, described time the liquid reservoir connects the solution canned motor pump, the solution canned motor pump connects the one-level regenerator, the end that goes out of one-level regenerator connects the first solution motor-driven valve, the 3rd solution motor-driven valve, the second solution motor-driven valve cuts out, the described first solution motor-driven valve connects the secondary regenerator, the end that goes out of described secondary regenerator connects the liquor charging reservoir, described liquor charging reservoir connects the solution canned motor pump, the solution canned motor pump connects the cool-down dehumidification air-conditioner by pipeline, and the liquor charging pipeline is regulated circulation solution with the solution electric control valve that is connected between the liquid back pipe road.
A kind of central air conditioner system of the present invention in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, utilize the high temperature steam discharge of screw rod air conditioner to come twin-stage recuperation of heat actified solution, be used for the dehumidifying of cool-down dehumidification air-conditioner, with former air-conditioner water system cooling, reduced dehumidifying with energy, having improved cooling air conditioner water temperature, improved air-conditioner host efficient, significantly reduce former air-conditioner water system water pump, cooling tower, air-conditioner host consumption.
Description of drawings
Fig. 1 is solution/water of the present invention system connection layout.
Fig. 2 is solution/water system's connection layout of the present invention (air-cooled heat pump type).
Fig. 3 is the integrated control principle figure of the present invention.
Fig. 4 is cool-down dehumidification module of the present invention and surface cooler connection layout.
Reference numeral: 1, the integrated switch board of central authorities, 2, the chilled water pump switch board, 3, the cooling water pump switch board, 4, the cooling tower switch board, 5, air-conditioner host is regulated switch board, 6, fan coil working condition acquiring processing module, 7, the indoor temperature and humidity collector, 8, the outdoor temperature humidity collector, 9, electrical quantity sensor, 10, flow sensor, 11, the PID control valve, 12, air-conditioner host, 13, chilled water pump, 14, cooling water pump, 15, cooling tower, 16, fan coil, 17, new blower fan, 18, built-up air conditioner, 19, machine room signals collecting case, 20, the outdoor signal vasculum, 21, cool-down dehumidification wind cabinet DCS control cabinet, 22, water valve PID control cabinet, 23-1, the solution regenerator, 23-2, the solution regenerator, 24, the communications bridge connection module, 25, heat exchanger, 26, return the liquid reservoir, 27, the liquor charging reservoir, 28, the solution canned motor pump, 29-1, the solution motor-driven valve, 29-2, the solution motor-driven valve, 29-3, the solution motor-driven valve, 30, the solution electric control valve, 31, solution cool-down dehumidification module, 32, double pipe heat exchanger, 33, the axial flow booster fan, 34, threeway plug door, 35, solution circulation pump, 36, liquid-level switch, 37, the DDC controller, 38, three-way control valve, 39, the PWM motor-driven valve, 40, electric two-way valve, 41, Temperature Humidity Sensor, 42, the air-conditioner surface cooler, 43, solution regeneration control DCS control cabinet.
The specific embodiment
A kind of central air conditioner system in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, comprise: screw rod machine twin-stage recuperation of heat circular regeneration solution system, the air-conditioning temperature-reducing water system, cool-down dehumidification air-conditioner treatment system is in conjunction with the new-type central air-conditioning comprehensive integration control system of the humiture independent regulation of screw rod machine twin-stage recuperation of heat actified solution.The solution of can cool-down dehumidification effect in the circular regeneration solution system; Can clean water in the air-conditioning temperature-reducing water system, can superconduction solution between heat exchanger and solution regenerator.
Under the control of the new-type central air-conditioning comprehensive integration control system of the humiture independent regulation of screw rod machine twin-stage recuperation of heat actified solution, just can finish screw rod machine twin-stage recuperation of heat circular regeneration solution system, the air-conditioning temperature-reducing water system, the work of cool-down dehumidification air-conditioner treatment system; Just can make air conditioner water temperature-fall period and solution dehumidification process dynamically mate the requirement that reaches indoor setting humiture.
Screw rod machine twin-stage recuperation of heat circular regeneration solution system is by described screw rod machine twin-stage recuperation of heat circular regeneration solution system: by the heat exchanger air pipe and connect screw rod machine condenser, it can be another screw rod unit, it also can be another refrigerating circuit, by condenser, electronic ratio adjusting control valve on the heat recovering heat exchanger is controlled the size of tolerance separately, regulates the actified solution ability; One-level regenerator 25 connects one-level regenerator 23-1, and secondary regenerator 25 connects secondary regenerator 23-2; Weak solution is back to back liquid reservoir 26, send by the solution canned motor pump, by motor-driven valve conversion work state, when a large amount of supply solution, the 3rd solution motor-driven valve 29-3 then, the second solution motor-driven valve 29-2 opens, the first solution motor-driven valve 29-1 closes, and then solution enters the I and II regenerator respectively, and solution is regenerated, regeneration back solution enters liquor charging reservoir 27, and solution is delivered to cool-down dehumidification air-conditioning unit by the solution canned motor pump in the liquor charging reservoir 27; When the need concentrated solution, the 3rd solution motor-driven valve 29-3 then, the second solution motor-driven valve 29-2 closes, the first solution motor-driven valve 29-1 opens, then solution is introduced into one-level regenerator 23-1 regeneration, enter secondary regenerator 23-2 regeneration after the one-level regenerator 23-1 regeneration again, regeneration back solution enters liquor charging reservoir 27, and solution is delivered to cool-down dehumidification air-conditioning unit by the solution canned motor pump in the liquor charging reservoir 27; When the moisture removal slump in demand, solution electric control valve 30 is regulated the amounts of opening, and then the part solution of delivering to cool-down dehumidification air-conditioning unit by the solution canned motor pump directly enters back liquid reservoir 26 and enters further concentration process.
Link circuit when supplying solution in a large number: weak solution enters back liquid reservoir 26 by cool-down dehumidification air-conditioner treatment system pipeline, described time liquid reservoir 26 connects solution canned motor pump 28-1, solution canned motor pump 28-1 one tunnel connects the 3rd solution motor-driven valve 29-3, the 3rd solution motor-driven valve 29-3 connects secondary regenerator 23-2, and the end that goes out of described secondary regenerator 23-2 connects liquor charging reservoir 27; Another road connects one-level regenerator 23-1, and the end that goes out of secondary regenerator 23-1 connects the second solution motor-driven valve 29-2, and the second solution motor-driven valve 29-2 connects liquor charging reservoir 27; Described liquor charging reservoir 27 connects solution canned motor pump 28-2, and solution canned motor pump 28-2 connects the cool-down dehumidification air-conditioner by pipeline.
Link circuit when needing concentrated solution: weak solution enters back liquid reservoir 26 by cool-down dehumidification air-conditioner treatment system pipeline, described time liquid reservoir 26 connects solution canned motor pump 28-1, the end that goes out that solution canned motor pump 28-1 connects one-level regenerator 23-1 one-level regenerator 23-1 connects the first solution motor-driven valve 29-1, and the 3rd solution motor-driven valve 29-3, the second solution motor-driven valve 29-2 close; The described first solution motor-driven valve 29-1 connects secondary regenerator 23-2, the end that goes out of described secondary regenerator 23-2 connects liquor charging reservoir 27, described liquor charging reservoir 27 connects solution canned motor pump 28-2, and solution canned motor pump 28-2 connects the cool-down dehumidification air-conditioner by pipeline.
Link circuit when the moisture removal slump in demand: weak solution enters back liquid reservoir 26 by cool-down dehumidification air-conditioner treatment system pipeline, described time liquid reservoir 26 connects solution canned motor pump 28-1, solution canned motor pump 28-1 connects one-level regenerator 23-1, the end that goes out of one-level regenerator 23-1 connects the first solution motor-driven valve 29-1, and the 3rd solution motor-driven valve 29-3, the second solution motor-driven valve 29-2 close; The described first solution motor-driven valve 29-1 connects secondary regenerator 23-2, the end that goes out of described secondary regenerator 23-2 connects liquor charging reservoir 27, described liquor charging reservoir 27 connects solution canned motor pump 28-2, and solution canned motor pump 28-2 connects the cool-down dehumidification air-conditioner by pipeline.
The liquor charging pipeline is regulated circulation solution with the solution electric control valve 30 that is connected between the liquid back pipe road.25 on solution regenerator and heat exchanger link to each other by two pipelines, constitute closed circuit, can superconduction solution in the closed circuit.The hot water of heat exchanger 25 goes out end connection regenerator and enters the hot junction, and regenerator goes out the hot junction and connects solution canned motor pump 28-3, and solution canned motor pump 28-3 connects heat exchanger 25 hot water inlet sides.
The air-conditioning temperature-reducing water system: be the conventional central air-conditioning system, by the air conditioner refrigerating main frame, chilled water system pipeline, water pump, the cooling water system pipeline, water pump, cooling tower 15, terminal air-conditioner (fan coil 16, air-conditioner), cool-down dehumidification air-conditioner are formed.The water side of air-conditioner host 12 evaporimeters connects chilled water pump 13 by water lines, and chilled water pump 13 connects built-up air conditioner 18, new blower fan 17, fan coil 16; The water side of described built-up air conditioner 18, new blower fan 17, fan coil 16 connects to make the return trip empty by pipeline transfers the backwater end of main frame 12 evaporimeters.The water side of air-conditioner host 12 condensers connects cooling water pump 14, and cooling water pump 14 connects cooling tower 15, and the water outlet of cooling tower 15 connects the backwater end of air-conditioner host 12 condensers.
Described cool-down dehumidification air-conditioner treatment system: by the surface cooler of former air-conditioner, filter, blower fans etc. add the cool-down dehumidification module, described cool-down dehumidification module is by by direct gas-liquid heat exchange device, the solution loop device, the control electric device is formed.
Described direct gas-liquid heat exchange device is by: solution dehumidification spray filler, liquid distributor, and liquid collector, the axial flow booster fan, the medium air filtration net, the high frequency ion net, protection network is formed.
Described solution loop device is by three-way solenoid valve, electric two-way valve 40, and the PWM electric control valve, double pipe heat exchanger 32, solution circulation pump 35 is formed.
Described control electric device is by the DDC controller 37 that band able to programme LCD shows, air intake Temperature Humidity Sensor 41, air-out Temperature Humidity Sensor 41, the working signal alarm lamp, liquid-level switch 36,39 controls of PWM electric control valve, electromagnetic cross valve control, electric two-way valve 40 controls, relay is formed.
Described cool-down dehumidification module connects water loop: chilled water supplies water and one the tunnel connects former air-conditioner surface cooler 42, and described former air-conditioner surface cooler 42 water sides connect the chilled water backwater; Supply water another road of described chilled water connects electric two-way valve 40 in dehumidification module, water route one end of electric two-way valve 40 adapter sleeve tubular type heat exchangers 25, and the water route other end of double pipe heat exchanger 25 connects the chilled water backwater.
Described cool-down dehumidification module connects solution loop: a end that is connected electric three-way valve 38 by the next concentrated solution of screw rod machine twin-stage recuperation of heat circular regeneration solution system, the a end of electric three-way valve 38 connects PWM motor-driven valve 39, solution loop one end of PWM motor-driven valve 39 adapter sleeve tubular type heat exchangers 25, the solution loop other end that connects double pipe heat exchanger 25 connects the inlet of the liquid distributor of direct gas-liquid heat exchange device, directly the liquid outlet of the liquid collector of gas-liquid heat exchange device connects solution circulation pump 35, solution circulation pump 35 connects electric three-way valve 38, and the b end of described electric three-way valve 38 is connected to screw rod machine twin-stage recuperation of heat circular regeneration solution system.
When screw rod machine twin-stage recuperation of heat circular regeneration solution system need not be worked, then electric three-way valve 38 connects PWM motor-driven valve 39, solution loop one end of PWM motor-driven valve 39 adapter sleeve tubular type heat exchangers 25, the solution loop other end that connects double pipe heat exchanger 25 connects the inlet of the liquid distributor of direct gas-liquid heat exchange device, directly the liquid outlet of the liquid collector of gas-liquid heat exchange device connects solution circulation pump 35, solution circulation pump 35 connects electric three-way valve 38, the a end of described electric three-way valve 38 connects the b end of electric three-way valve 38, and it is wet to form cycle down.
The new-type central air-conditioning comprehensive integration control system of described humiture independent regulation in conjunction with screw rod machine twin-stage recuperation of heat actified solution is by fan coil working condition acquiring processing module 6, cool-down dehumidification wind cabinet DCS control cabinet 21, air-conditioning place humiture collection device, machine room signals collecting cabinet, outdoor environment is gathered cabinet, chilled water pump switch board 2, cooling water pump switch board 3, cooling tower switch board 4, solution regeneration DCS control cabinet 43, the communications bridge connection module, the air-conditioner host control cabinet, central integrated switch board 1 is formed.
Described fan coil working condition acquiring processing module 6, adopt the EDC programming device, 8UI/2AO, 5DI/4DO gathers the turnover wind-warm syndrome humidity of fan coil, the Inlet and outlet water temperature, Inlet and outlet water pressure reduction, by wind fin heat exchange experience company: calculate real-time wet coefficient ξ, the contact coefficient ES of analysing, wind side heat exchange exchange efficiency E, by the accurate number TP of equipment data relevant parameter accounting temperature that determines, water equivalent is counted D, heat transfer units B, calculates the output water temperature setting value that air-conditioning temperature-reducing needs, and makes air-conditioner host come refrigeration cool-down by dynamic actual air-conditioning demand; That calculates that air conditioner dehumidification needs reaches the setting humidity value, and the concentration that makes solution regeneration dehumidification solution and internal circulating load be satisfied falls wet needs dynamically.
Described cool-down dehumidification wind cabinet DCS control cabinet 21, by wind cabinet turnover wind-warm syndrome humidity, the Inlet and outlet water temperature sensor is controlled the water yield of solution dehumidification amount and cooling surface cooler by the humiture requirement of wind pushing air by the control logic of DCS controller.
Described air-conditioning place humiture collection device, Temperature Humidity Sensor 41 by a plurality of air-conditionings place is formed, 41 groups of indoor temperature and humidity sensor compare according to the air-conditioning effect (humiture) of the real-time various air-conditionings field of employment comfort requirement with various different places, and the air-conditioning of fan coil working condition acquiring processing module 6 is calculated the feed temperature value revise, effect on moisture extraction is proofreaied and correct.
Described machine room signals collecting case 19, by chilled water flow quantity sensor 10, main frame electrical quantity sensor 9, multiple pressure of supply water sensor, multiple water temperature sensor, 485 communication simulation amount acquisition modules are formed.
Described outdoor environment vasculum 20, by outdoor temperature humidity sensor 41, outdoor luminosity sensor, 485 communication simulation amount acquisition modules are formed.
Described chilled water pump switch board 2, by 485 communication I/O data acquisition control output modules, frequency converter, variable frequency pump, 485 communication simulation amount output modules are formed.
Described cooling water pump switch board 3, by 485 communication I/O data acquisition control output modules, frequency converter, variable frequency pump, 485 communication simulation amount output modules are formed.
Described cooling tower switch board 4 is made up of 485 communication I/O data acquisition control output modules
Described solution regeneration control DCS control cabinet 43 supplies degree of rising again, pressure by the DCS controller according to solution, flow sensor, turnover solution concentration sensor signal is analyzed, control solution motor-driven valve, the solution control valve, solution regenerator 23, the work of solution canned motor pump 28-1,28-2,28-3.
Described communications bridge connection module 24 is made up of the communication protocols converter corresponding with main frame.
Described air-conditioner host is regulated switch board 5, is made up of the relevant control module of main-machine communication control.
The integrated switch board 1 of described central authorities is exactly the central integrated processor in conjunction with the new-type central air-conditioning comprehensive integration control system of the humiture independent regulation of screw rod machine twin-stage recuperation of heat actified solution, has comprised that above-mentioned each process integration configuration and data analysis handle.
Link circuit: according to the principle of distributed DCS control, connect by 485 buses, the integrated switch board of central authorities connects fan coil working condition acquiring processing module 6, the integrated switch board of central authorities connects cool-down dehumidification wind cabinet DCS control cabinet 21, the integrated switch board of central authorities connects air-conditioning place humiture collection device, the integrated switch board of central authorities connects machine room signals collecting case 19, the integrated switch board junction chamber external environment of central authorities is gathered cabinet, the integrated switch board 1 of central authorities connects chilled water pump switch board 2, the integrated switch board 1 of central authorities connects cooling water pump switch board 3, the integrated switch board 1 of central authorities connects cooling tower switch board 4, the integrated switch board 1 of central authorities connects solution regeneration DCS control cabinet 43, the integrated switch board 1 of central authorities connects communications bridge connection module 24, and central integrated switch board 1 connects air-conditioner host and regulates switch board 5.
The operation principle of this device is as follows:
Fan coil working condition acquiring processing module 6, cool-down dehumidification wind cabinet DCS control cabinet turnover wind-warm syndrome humidity, the Inlet and outlet water temperature, Inlet and outlet water pressure reduction is by wind fin heat exchange experience company: calculate real-time wet coefficient ξ, contact coefficient ES, the wind side heat exchange exchange efficiency E of analysing, by the accurate number TP of equipment data relevant parameter accounting temperature that determines, water equivalent is counted D, heat transfer units B, calculates the output water temperature setting value that air-conditioning temperature-reducing needs, and makes air-conditioner host come refrigeration cool-down by dynamic actual air-conditioning demand; That calculates that air conditioner dehumidification needs reaches the setting humidity value, and the concentration that makes solution regeneration dehumidification solution and internal circulating load be satisfied falls wet needs dynamically.
Temperature Humidity Sensor 41 by a plurality of air-conditionings place is formed, the indoor temperature and humidity sensor group compares according to the air-conditioning effect (humiture) of real-time various air-conditionings field of employment and the comfort requirement of various different places, and to fan coil working condition acquiring processing module 6, the air-conditioning of cool-down dehumidification wind cabinet DCS control cabinet 21 calculates the required air-conditioning feed temperature value of cooling, and the needed dehumidification solution value of effect on moisture extraction is revised.
The integrated switch board of central authorities is by above calculating, and add machine room upper signals collecting case 19, outdoor signal vasculum 20, air-conditioner host is regulated the analysis of 5 pairs of air-conditioning total systems of switch board reducing temperature and humidity operating mode, regulate the water supply water temperature calculated value that switch board 5 control air-conditioner host supply water temperatures meet the cooling needs by the integrated switch board 1 of central authorities by air-conditioner host, become the water temperature operation; By the integrated switch board 1 control chilled water pump switch board 2 of central authorities, the 2 control chilled water pump Frequency Conversion Variable Water Flow operations of chilled water pump switch board; By the integrated switch board 1 control solution regeneration DCS control cabinet 43 of central authorities, solution regeneration DCS control cabinet 43 control heat exchangers 25, wet needed solution concentration falls in regenerator, the on-the-job satisfaction of change working motor-driven valve, control valve, and by economic regulating working conditions regenerative process; By the integrated switch board 1 control cooling water pump switch board 3 of central authorities, cooling tower switch board 3 guarantees the delivery temperature and the pressure reduction of air-conditioner host 12 nominal situations, the 3 control cooling water pump variable flow operations of cooling water pump switch board, the operation platform number of cooling tower switch board 3 control cooling towers 15; By the integrated switch board 1 control cool-down dehumidification wind cabinet DCS control cabinet 21 of central authorities, the PWM motor-driven valve 39 of wet process falls in 21 controls of cool-down dehumidification wind cabinet DCS control cabinet, the duty of heat exchanger 25 grades, wet requirement falls in satisfied calculating, and the humiture situation of air is given central integrated switch board 1 after the feedback processing, by the integrated switch board 1 regulator solution regeneration DCS of central authorities control cabinet 43 control heat exchangers 25, the work of air-conditioner host control cabinet, constantly dynamic adjusting system reaches the needs of economic reducing temperature and humidity.
The solution regenerative process is to utilize the heat extraction removal process of air-conditioner host to carry out, and is energy free regeneration, falls wet needs as long as have, heat recycle process is just uninterrupted, i.e. the heat extraction of air-conditioner host is reclaimed and uninterruptedly carried out the heat recovery efficiency height, just can significantly reduce cooling water pump, the total load of cooling tower.
Claims (9)
1. central air conditioner system in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: by screw rod machine twin-stage recuperation of heat circular regeneration solution system, the air-conditioning temperature-reducing water system, cool-down dehumidification air-conditioner treatment system, central air-conditioning comprehensive integration control system in conjunction with the humiture independent regulation of screw rod machine twin-stage recuperation of heat actified solution is formed, the solution of can cool-down dehumidification effect in the circular regeneration solution system, can clean water in the air-conditioning temperature-reducing water system, can superconduction solution between heat exchanger and solution regenerator.
2. according to the described a kind of central air conditioner system of claim 1 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: described screw rod machine twin-stage recuperation of heat circular regeneration solution system by: by the heat exchanger air pipe and connect condenser, described condenser is the condenser of screw rod unit or the condenser of refrigerating circuit, by condenser, electronic ratio adjusting control valve on the heat recovering heat exchanger is controlled the size of tolerance separately, regulates the actified solution ability; The one-level regenerator connects the one-level regenerator, and the secondary regenerator connects the secondary regenerator; Weak solution is back to back the liquid reservoir, send by the solution canned motor pump, by motor-driven valve conversion work state, when a large amount of supply solution, then the 3rd solution motor-driven valve (29-3), the second solution motor-driven valve (29-2) are opened, and the first solution motor-driven valve (29-1) closes, then solution enters the I and II regenerator respectively, solution is regenerated, and regeneration back solution enters the liquor charging reservoir, is sent in the liquid reservoir solution and delivers to cool-down dehumidification air-conditioning unit by the solution canned motor pump; When the need concentrated solution, then the 3rd solution motor-driven valve (29-3), the second solution motor-driven valve (29-2) close, the first solution motor-driven valve (29-1) is opened, then solution is introduced into the regeneration of one-level regenerator, enter the regeneration of secondary regenerator after the regeneration of one-level regenerator again, regeneration back solution enters the liquor charging reservoir, and solution is delivered to cool-down dehumidification air-conditioning unit by the solution canned motor pump in the liquor charging reservoir; When the moisture removal slump in demand, solution electric control valve (30) is regulated the amount of opening, and then the part solution of delivering to cool-down dehumidification air-conditioning unit by the solution canned motor pump directly enters back the liquid reservoir and enters further concentrated.
3. according to the described a kind of central air conditioner system of claim 1 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: described cool-down dehumidification air-conditioner treatment system connects water loop by: cool-down dehumidification module and is connected solution loop with the cool-down dehumidification module and forms, the cool-down dehumidification module connects water loop: chilled water supplies water and one the tunnel connects former air-conditioner surface cooler (42), described former air-conditioner surface cooler (42) water side connects the chilled water backwater, supply water another road of described chilled water connects electric two-way valve (40) in dehumidification module, water route one end of electric two-way valve (40) adapter sleeve tubular type heat exchanger, the water route other end of double pipe heat exchanger connects the chilled water backwater;
The cool-down dehumidification module connects solution loop: a end that is connected electric three-way valve (38) by the next concentrated solution of screw rod machine twin-stage recuperation of heat circular regeneration solution system, the a end of electric three-way valve (38) connects PWM motor-driven valve (39), solution loop one end of PWM motor-driven valve (39) adapter sleeve tubular type heat exchanger, the solution loop other end that connects double pipe heat exchanger connects the inlet of the liquid distributor of direct gas-liquid heat exchange device, directly the liquid outlet of the liquid collector of gas-liquid heat exchange device connects solution circulation pump (35), solution circulation pump (35) connects electric three-way valve (38), and the b end of described electric three-way valve (38) is connected to screw rod machine twin-stage recuperation of heat circular regeneration solution system.
4. according to the described a kind of central air conditioner system of claim 1 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: the central air-conditioning comprehensive integration control system of described humiture independent regulation in conjunction with screw rod machine twin-stage recuperation of heat actified solution is according to the principle of distributed DCS control, pressing the RS-485 bus connects, by: central integrated switch board connects fan coil working condition acquiring processing module (6), the integrated switch board of central authorities connects cool-down dehumidification wind cabinet DCS control cabinet (21), the integrated switch board of central authorities connects air-conditioning place humiture collection device, the integrated switch board of central authorities connects machine room signals collecting cabinet, the integrated switch board junction chamber external environment of central authorities is gathered cabinet, the integrated switch board of central authorities connects the chilled water pump switch board, the integrated switch board of central authorities connects the cooling water pump switch board, the integrated switch board of central authorities connects the cooling tower switch board, the integrated switch board of central authorities connects solution regeneration DCS control cabinet, the integrated switch board of central authorities connects the communications bridge connection module, and central integrated switch board connects the air-conditioner host control cabinet.
5. according to the described a kind of central air conditioner system of claim 1 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: link to each other by two pipelines between described solution regenerator and heat exchanger, constitute closed circuit, can superconduction solution in the closed circuit, by: the hot water of heat exchanger goes out end connection regenerator and enters the hot junction, regenerator goes out the hot junction and connects solution canned motor pump (28-3), and solution canned motor pump (28-3) connects heat exchanger hot water inlet side.
6. according to the described a kind of central air conditioner system of claim 1 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: described heat exchanger and air-conditioner condenser also connect, the gas flow of crossing that distributes condenser and heat exchanger by the pressure drop of cooling capacity formation, by: the air-conditioner host exhaust end connects PWM motor-driven valve (39), PWM motor-driven valve (39) connects heat exchanger gas circuit one end, and the described heat exchanger gas circuit other end is connected to air-conditioner host expansion valve front end.
7. according to the described a kind of central air conditioner system of claim 2 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: when described screw rod machine twin-stage recuperation of heat circular regeneration solution system was supplied solution in a large number: weak solution entered back liquid reservoir (26) by cool-down dehumidification air-conditioner treatment system pipeline, described time liquid reservoir (26) connects solution canned motor pump (28-1), solution canned motor pump (28-1) one tunnel connects the 3rd solution motor-driven valve (29-3), the 3rd solution motor-driven valve (29-3) connects secondary regenerator (23-2), the end that goes out of described secondary regenerator (23-2) connects liquor charging reservoir (27), another road connects one-level regenerator (23-1), the end that goes out of secondary regenerator (23-1) connects the second solution motor-driven valve (V2), the second solution motor-driven valve (29-2) connects liquor charging reservoir (27), described liquor charging reservoir (27) connects solution canned motor pump (28-2), and solution canned motor pump (28-2) connects the cool-down dehumidification air-conditioner by pipeline.
8. according to the described a kind of central air conditioner system of claim 2 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: when described screw rod machine twin-stage recuperation of heat circular regeneration solution system needed concentrated solution: weak solution entered back liquid reservoir (26) by cool-down dehumidification air-conditioner treatment system pipeline, described time liquid reservoir (26) connects solution canned motor pump (28-1), solution canned motor pump (28-1) connects one-level regenerator (23-1), the end that goes out of one-level regenerator (23-1) connects the first solution motor-driven valve (29-1), the 3rd solution motor-driven valve (29-3), the second solution motor-driven valve (29-2) cuts out, the described first solution motor-driven valve (29-1) connects secondary regenerator (23-2), the end that goes out of described secondary regenerator (23-2) connects liquor charging reservoir (27), described liquor charging reservoir (27) connects solution canned motor pump (28-2), and solution canned motor pump (28-2) connects the cool-down dehumidification air-conditioner by pipeline.
9. according to the described a kind of central air conditioner system of claim 2 in conjunction with screw rod machine recuperation of heat solution humiture independent regulation, it is characterized in that: during described screw rod machine twin-stage recuperation of heat circular regeneration solution system moisture removal slump in demand: weak solution enters back liquid reservoir (26) by cool-down dehumidification air-conditioner treatment system pipeline, described time liquid reservoir (26) connects solution canned motor pump (28-1), the end that goes out that solution canned motor pump (28-1) connects one-level regenerator (23-1) one-level regenerator (23-1) connects the first solution motor-driven valve (29-1), the 3rd solution motor-driven valve (29-3), the second solution motor-driven valve (29-2) cuts out, the described first solution motor-driven valve (29-1) connects secondary regenerator (23-2), the end that goes out of described secondary regenerator (23-2) connects liquor charging reservoir (27), described liquor charging reservoir (27) connects solution canned motor pump (28-2), solution canned motor pump (28-2) connects the cool-down dehumidification air-conditioner by pipeline, and the liquor charging pipeline is regulated circulation solution with the solution electric control valve (30) that is connected between the liquid back pipe road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110140958 CN102252381B (en) | 2011-05-27 | 2011-05-27 | Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine |
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| CN 201110140958 CN102252381B (en) | 2011-05-27 | 2011-05-27 | Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104067060A (en) * | 2012-02-28 | 2014-09-24 | 皇家飞利浦有限公司 | An apparatus for gas cleaning |
| CN106482248A (en) * | 2015-08-25 | 2017-03-08 | 中南大学 | Control system of machine room air conditioner based on multi-connected air conditioner and method |
| CN112629150A (en) * | 2019-10-09 | 2021-04-09 | 佛山市顺德区美的饮水机制造有限公司 | Water treatment apparatus, control method thereof, and computer-readable storage medium |
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| CN202074636U (en) * | 2011-05-27 | 2011-12-14 | 黄真银 | Central air conditioning system for independently adjusting in combination with temperature and humidity of heat recovery solution in screw compressor |
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| CN101140089A (en) * | 2007-10-26 | 2008-03-12 | 重庆大学 | Humiture independence control air conditioner system |
| JP2009216330A (en) * | 2008-03-11 | 2009-09-24 | Kyocera Corp | Air-conditioning device and method for using air-conditioning device |
| CN101701737A (en) * | 2009-10-28 | 2010-05-05 | 东南大学 | Heat-pump-driven solution dehumidifying air-conditioning device |
| CN202074636U (en) * | 2011-05-27 | 2011-12-14 | 黄真银 | Central air conditioning system for independently adjusting in combination with temperature and humidity of heat recovery solution in screw compressor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104067060A (en) * | 2012-02-28 | 2014-09-24 | 皇家飞利浦有限公司 | An apparatus for gas cleaning |
| CN104067060B (en) * | 2012-02-28 | 2015-09-09 | 皇家飞利浦有限公司 | For the device of gas sanitizes |
| CN106482248A (en) * | 2015-08-25 | 2017-03-08 | 中南大学 | Control system of machine room air conditioner based on multi-connected air conditioner and method |
| CN106482248B (en) * | 2015-08-25 | 2019-07-19 | 中南大学 | Control system of machine room air conditioner based on multi-connected air conditioner |
| CN112629150A (en) * | 2019-10-09 | 2021-04-09 | 佛山市顺德区美的饮水机制造有限公司 | Water treatment apparatus, control method thereof, and computer-readable storage medium |
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| CN102252381B (en) | 2013-04-10 |
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