CN201138102Y

CN201138102Y - Novel return energy recovery heat pump device with secondary humidifying cooling condenser

Info

Publication number: CN201138102Y
Application number: CN 200720310534
Authority: CN
Inventors: 张茂勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2008-10-22
Anticipated expiration: 2017-12-13

Abstract

The utility model discloses a fresh-return-air energy recycling heat-pump device with a secondary moisturizing cooling-typed condenser, which is composed of a compressor, an outdoor finned moisturizing cooling condenser, an evaporator, an inflation valve and other parts; wherein, the outdoor finned moisturizing condenser is composed of a plurality of thermo-moisture treatment components such as a first-level condensing heater, a second-level moisturizing cooler, a third-level condensing heater, etc. The device innovatively moisturizes and decreases the temperature of the air that is heated by the condenser; the air passes through the next-level condenser to be exchanged the heat with a high-temperature refrigeration agent; the water source is condensed water of the evaporator, so that all or part of cooling capacity contained by the evaporator condensed water can be recycled; moreover, 50 percent or more air volume required by the condenser is reduced; the device innovatively uses the heat pump to realize the thorough recycling of the heat of the fresh discharged air; and the heating efficiency can reach 100 percent that is far beyond the heat recycling efficiency of the prior fresh discharged air, thereby having obvious energy-saving benefit. The device realizes the significant jump on two aspects such as the refrigerator unit condensing heat exchanging principle and the application of the condensing heat exchanging principle.

Description

A kind of new return air energy with secondary humidification cooled condenser reclaims heat pump assembly

Technical field

The utility model relates to a kind of new return air energy with secondary humidification cooled condenser and reclaims heat pump assembly, air to the device heating that is condensed utilizes evaporator condensate to carry out the moistening and lowering temperature processing, pass through next stage condenser pair and high temperature refrigerant heat exchange once more, creatively realized the full recuperation of heat of new air draft, belonged to refrigeration unit and air-conditioning processing procedure technical field with heat pump.

Background technology

New air draft recuperation of heat is paid attention to by air-conditioning technical field as the important method that reduces the Architectural Equipment energy consumption, and a large amount of applying arranged at present at home.But present several main recuperation of heat methods and equipment all exist the significant problem of application facet, and therefore the project that success is implemented in the actual engineering reaches desired target far away.For example present board-like new air draft heat exchanger generally only carries out the sensible heat exchange, the product of realizing full heat exchange exists organic heat exchange element can produce germ, peculiar smell, two class heat regenerators exist all that efficient is lower generally, size is bigger, the excessive fan energy consumption that causes of wind group is big, dewfall and frosting in winter problem are difficult to effective solution, accumulate when using for a long time a large amount of dusts cause seriously polluted, the more high shortcoming of cost; Rotary-type heat regenerator is oversize, selling at exorbitant prices etc.; Other conducts heat and heat pipe-type etc. often can only be realized the sensible heat exchange with the water heat exchange and by circulation line respectively as new air draft, and have that operation control is complicated, need avoid problems such as water pipe from freezing crack is freezing winter.Above-mentioned reason has all caused difficulties such as the Energy Efficiency Ratio, economy, operability in the new air draft recuperation of heat practical application, badly influences the actual popularization of this important power-saving technology.

Also is a kind of important method with heat pump application in new air draft recuperation of heat, but the Energy Efficiency Ratio of air-cooled condenser is generally lower at present, only can reach 3.0 or many slightly, can reach with the common propaganda of board-like and rotary-type unit and to compare lowly more than 6, this performance indications make heat pump be difficult to become the main means of new air draft recuperation of heat.Particularly the characteristics of refrigeration system are that condenser heat generally exceeds evaporation cold about 10～30%, and the inside and outside heat transfer temperature difference of condenser generally is lower than evaporimeter usually, and the import and export temperature difference of condenser cooling air is littler than the evaporimeter air that is cooled usually, and this generally can cause the condensation air quantity to exceed more than 30～100% than the evaporation air quantity to air-cooled cold wind type refrigeration unit.And the exhaust air rate in a organized way of air-conditioning system will be lower than resh air requirement about 10% usually, so when with heat pump application during in new air draft recuperation of heat, if only absorb sensible heat amount limited in the air draft, then the cooling and dehumidifying ability to new wind is lower, can't give full play to the advantage of heat pump recuperation of heat.

When winter that is used for air-conditioning system during humidification, because the heat pump condensation portion can only realize the sensible heat heating, then must establish a cover humidifier in addition, increased physical dimension and cost.

The air-conditioning system air handling process generally adopts the freeze drying method at present, the cooling of air, dehumidification process coupling, the evaporating temperature of refrigeration machine dropped to very low-levelly cause the refrigeration machine Energy Efficiency Ratio to decline to a great extent, increase initial cost and operating cost to satisfy the dehumidifying needs.

Summary of the invention

The purpose of this utility model and task are, variety of problems at above-mentioned existence, the strong more characteristic of the high more wettability power of temperature when constant according to the air water capacity, creationary air to the device heating that is condensed adds wet process, make its temperature be reduced to very low temperature along approximate constant-enthalpy process, pass through next stage condenser and high temperature refrigerant heat exchange once more, the water source is then for thinking the evaporator condensate that does not contain calcium ions and magnesium ions, thereby realized all or part of recycling of the contained cold of evaporator condensate, the scale problems of having avoided direct employing running water humidification to cause, and condenser institute required airflow has reduced more than 50%, the creationary full recuperation of heat that has realized new air draft with heat pump, and total heat effectiveness can be near 100%, when outside air temperature is not really high owing to the far super outside air temperature of temperature of outgoing air makes total heat effectiveness surpass 100%, considerably beyond the efficient of all new air draft recuperations of heat at present, energy-saving benefit is very remarkable.

For this reason, the utility model has designed a kind of new return air energy with secondary humidification cooled condenser and has reclaimed heat pump assembly, form by compressor, condenser, evaporimeter, expansion valve, cross valve, check valve group, reservoir, device for drying and filtering, vapour liquid separator and other accessory, wherein condenser is divided into three grades of hot procedure for wet processing, the first order with indoor exhaust wind by 20～26 ℃ of left and right sides condensations of room temperature heat treated to 40～50 ℃, the second level is cooled to the air draft humidification about 20～26 ℃, and the third level is heated to 45～50 ℃ side by side to outdoor with air draft by condenser again.One, three grades of condensers adopt finned heat exchanger, and the secondary humidifier adopts ultrasonic humidifier or atomizing spray humidifier.If necessary, also level Four humidified cooler and Pyatyi condensation heater can be set after the third level again.

Summer, the humidification water source of processing procedure was an evaporator condensate, thereby the target that the contained cryogenic energy utilization heat pump of condensate water after realizing basically new air cooling being dehumidified reclaims has promptly been finished full heat recycle process, and do not wasted the running water water source.

Heat regenerators such as usually rotary-type or board-like only are passive dehumidification process for the fresh air dehumidification process, can't achieve effective control the dehumidifying level, and adopt heat pump heat reclamation device of the present utility model, can realize freezing independent humidity control fully, this has following important meaning to air-conditioning system: the refrigeration host computer of central air conditioner system rises to the chilled water leaving water temperature about 15 ℃ significantly by common about 7 ℃, then the Energy Efficiency Ratio of central air-conditioning refrigeration unit significantly improves, the capacity of refrigeration machine and air-conditioning system relevant device parts reduces by a relatively large margin, initial cost and operating cost descend by a relatively large margin, and can realize the dry-running of indoor fan coil pipe, thoroughly solve owing to grow room air pollution and the air conditioner disease that harmful microorganism causes in a large number in the wind dish drip tray.

Simultaneously, if Air-conditioner design, this mode of direct employing in service in the winter time under the condition realize the humidification heat recycle process, then can save the humidifier of establishing in addition, the humidification water source of this moment is mainly demineralized water.

Aspect the controllability and reliability, Energy Efficiency Ratio and economy that the utility model is regulated in version and size, operation, new air draft heat regenerator than existing form has very big comprehensive advantage, for example the Energy Efficiency Ratio in its winter can really reach more than 6～8, and can effectively avoid dewfall restricted problem such as freeze.

The utility model has been realized refrigeration unit condensing heat-exchange principle and the important breakthrough of using two aspects.

Description of drawings

Fig. 1 is respectively the utility model principle schematic.

Each unit number and title are as follows among Fig. 1:

Compressor 1, cross valve 2, outdoor finned humidification cooler condenser 3, check valve group 4+5+6+7, reservoir 8, device for drying and filtering 9, liquid-sighting glass 10, expansion valve 11, evaporimeter 12, vapour liquid separator 13, low-pressure meter 14, high pressure gauge 15, evaporimeter drip tray 16, one-level condensation heater 17, secondary humidified cooler 18, three grades of condensation heaters 19, secondary humidified cooler humidification water pond 20, humidifier spout 21.

The specific embodiment

Below in conjunction with accompanying drawing and a kind of concrete implementation of an application example the utility model is described further.

Fig. 1 is the utility model principle schematic.

This utility model is made up of compressor (1), outdoor finned humidification cooler condenser (3), evaporimeter (12), expansion valve (11), cross valve (2), check valve group (4,5,6,7), reservoir (8), device for drying and filtering (9), vapour liquid separator (13) and other accessory, it is characterized in that outdoor finned humidification cooler condenser (3) is made up of one-level condensation heater (17), secondary humidified cooler (18), three grades of condensation heater multistage hot wet process assemblies such as (19); Outdoor finned humidification cooler condenser (3) fluorine road entrance point links to each other with compressor (1) exhaust outlet through cross valve (2), and the port of export links to each other with check valve group (4+5+6+7); Reservoir (8) entrance point links to each other with check valve group (4+5+6+7), and the port of export links to each other with device for drying and filtering (9) import; Device for drying and filtering (9) port of export links to each other with expansion valve (11) import through liquid-sighting glass (10); Evaporimeter (12) entrance point links to each other with expansion valve (11) outlet by check valve group (4+5+6+7), and the port of export links to each other with vapour liquid separator (13) entrance point by cross valve (2); Vapour liquid separator (13) port of export links to each other with compressor (1) air entry.

The water inlet of the humidification water pond (20) of outdoor finned humidification cooler condenser (3) secondary humidification cooling device (18) and evaporimeter (12) drip tray (16) outlet pipe with link to each other, delivery port links to each other with humidifier spout (21).Secondary humidified cooler (18) air intake links to each other with one-level condensation heater (17) outlet air end, and outlet air end links to each other with three grades of condensation heaters (19).Evaporimeter (12) is positioned at condenser (2) top, and evaporator condensation water is transported to secondary humidified cooler humidification water pond (20) by water pipe and with ultrasonic wave humidification nozzle (21) air wetting is cooled off.

The net for air-source heat pump units that is made according to said structure, apparent cold that condenser one side can be utilized the cooling air earlier to condenser in the refrigeration machine of HTHP cool off, when air reaches higher temperature, carry out moistening and lowering temperature with regard to the mode that adopts water spray, water capacity greatly increases in the air, and along approximate isenthalp cooling, carry out the secondary cooling heat transferring with cold-producing medium then, thereby realized carrying out condensing heat-exchange under the situation of cooling air quantity significantly reducing, and condensation temperature is significantly less than conventional air-cooled heat pump, thereby improved the condensation situation greatly, the heat pump Energy Efficiency Ratio greatly improves, avoid water cooling heat pump to build cooling tower in addition simultaneously and cooled off, saved initial cost and operating cost.

Claims

1, a kind of new return air energy with secondary humidification cooled condenser reclaims heat pump assembly, form by compressor (1), outdoor finned humidification cooler condenser (3), evaporimeter (12), expansion valve (11), cross valve (2), check valve group (4,5,6,7), reservoir (8), device for drying and filtering (9), vapour liquid separator (13) and other accessory, it is characterized in that outdoor finned humidification cooler condenser (3) is made up of one-level condensation heater (17), secondary humidified cooler (18), three grades of condensation heater multistage hot wet process assemblies such as (19); Outdoor finned humidification cooler condenser (3) fluorine road entrance point links to each other with compressor (1) exhaust outlet through cross valve (2), and the port of export links to each other with check valve group (4+5+6+7); Reservoir (8) entrance point links to each other with check valve group (4+5+6+7), and the port of export links to each other with device for drying and filtering (9) import; Device for drying and filtering (9) port of export links to each other with expansion valve (11) import through liquid-sighting glass (10); Evaporimeter (12) entrance point links to each other with expansion valve (11) outlet by check valve group (4+5+6+7), and the port of export links to each other with vapour liquid separator (13) entrance point by cross valve (2); Vapour liquid separator (13) port of export links to each other with compressor (1) air entry.

2, the new return air energy of band secondary humidification cooled condenser as claimed in claim 1 reclaims heat pump assembly, it is characterized in that described outdoor finned humidification cooler condenser (3) secondary humidification cooling device (18) humidification water pond (20) water inlet and evaporimeter (12) drip tray (16) outlet pipe with link to each other, delivery port links to each other with humidifier spout (21), secondary humidified cooler (18) air intake links to each other with one-level condensation heater (17) outlet air end, and outlet air end links to each other with three grades of condensation heaters (19).