CN210688680U - Air conditioner comdenstion water doublestage returns cold system - Google Patents
Air conditioner comdenstion water doublestage returns cold system Download PDFInfo
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- CN210688680U CN210688680U CN201921553228.8U CN201921553228U CN210688680U CN 210688680 U CN210688680 U CN 210688680U CN 201921553228 U CN201921553228 U CN 201921553228U CN 210688680 U CN210688680 U CN 210688680U
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Abstract
The utility model relates to an air conditioner comdenstion water doublestage returns cold system, include and communicate condenser, heat exchanger one, capillary, evaporimeter, compressor and the heat exchanger two that forms circulation circuit through the refrigerant pipeline in proper order, through first condensate pipe way intercommunication between evaporimeter and the heat exchanger one, through second condensate pipe way intercommunication between heat exchanger one and the heat exchanger two, install valve and water pump from the evaporimeter to heat exchanger one on the first condensate pipe way in proper order. The utility model has the advantages that the multi-stage utilization of the condensed water is realized, the cold energy of the condensed water is fully utilized to improve the COP value of the air conditioning system, and the energy-saving and environment-friendly effects are achieved; meanwhile, the cold energy of the condensed water is utilized in a closed heat exchange environment, and the damage of the condensed water to other parts of the system is avoided.
Description
Technical Field
The utility model relates to a comdenstion water treatment technical field, concretely relates to air conditioner comdenstion water doublestage returns cold system.
Background
Because the air conditioner adopts big difference in temperature, machine dew point to supply air in the in-service use mostly, will produce a large amount of comdenstion water at the operation in-process, this part water resource has output big, the temperature is low and high-purity characteristic, the output of comdenstion water can be bigger in the southern area of high temperature and high humidity, this part contains huge cold volume's comdenstion water should utilize.
In the field of household air conditioners or large central air conditioners, the air cooling system of the condenser is simple in structure and convenient to install and maintain, so that most of air conditioning systems adopt the air cooling system to cool the condenser. In the research on the utilization of condensed water, many scholars consider that the condensed water is directly sprayed (or atomized) to the condenser to utilize the latent heat thereof by simultaneously utilizing the sensible heat and the latent heat thereof, which will inevitably cause damages such as erosion, dust adsorption blockage, etc. to the condenser fins.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an air conditioner comdenstion water doublestage returns cold system is provided, aims at solving above-mentioned technical problem.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
the utility model provides an air conditioner comdenstion water doublestage returns cold system, includes condenser, heat exchanger one, capillary, evaporimeter, compressor and the heat exchanger two that form circulation circuit through the refrigerant pipeline intercommunication in proper order, the evaporimeter with communicate through first condensate pipe way between the heat exchanger one, heat exchanger one with communicate through second condensate pipe way between the heat exchanger two, follow on the first condensate pipe the evaporimeter arrives valve and water pump are installed in proper order to the heat exchanger one.
The utility model has the advantages that: the refrigerant circularly flows in a circulating loop formed by a condenser, a first heat exchanger, a capillary tube, an evaporator, a compressor and a second heat exchanger which are sequentially communicated through refrigerant pipelines so as to refrigerate or heat; during refrigeration, condensed water generated by the evaporator is sequentially sent to the first heat exchanger and the second heat exchanger through the water pump, heat exchange treatment is successively carried out on the refrigerant with lower temperature at the outlet of the evaporator and the refrigerant with higher temperature at the inlet of the evaporator respectively, and finally the condensed water is discharged through the second heat exchanger. The utility model realizes the multi-stage utilization of the condensed water, makes full use of the cold energy of the condensed water to improve the COP value of the air conditioning system, and is energy-saving and environment-friendly; meanwhile, the cold energy of the condensed water is utilized in a closed heat exchange environment, and the damage of the condensed water to other parts of the system is avoided.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, a water storage tank is arranged on the first condensate pipeline between the water pump and the valve.
Adopt above-mentioned further scheme's beneficial effect be that the storage water tank can store partial comdenstion water on the one hand, on the other hand the storage water tank can carry out steady voltage.
Further, a filter is arranged on the first condensate pipeline between the water storage tank and the valve.
The beneficial effects of adopting above-mentioned further scheme are that get rid of the impurity in the condensate water through the filter, avoid the impurity in the condensate water to influence the use of other equipment, prolong the life of other equipment, practice thrift the cost.
Further, a drying filter is arranged on the refrigerant pipeline between the first heat exchanger and the capillary tube.
The beneficial effects of adopting the above further scheme are that the impurities in the refrigerant are removed through the drying filter, the equipment blockage is avoided, and the refrigerant pipeline is ensured to be smooth.
Further, the first heat exchanger and the second heat exchanger both adopt shell-and-tube heat exchangers.
The shell-and-tube heat exchanger has the advantages of small volume, light weight, good corrosion resistance, good pollution resistance, difficult scaling and good heat transfer performance.
Further, the valve is an electric valve.
The beneficial effects of adopting the above-mentioned further scheme are that degree of automation is high, labour saving and time saving.
It should be noted that the electric valve determines whether to open or not according to the cooling/heating conditions of the air conditioning system, that is, the electric valve is opened during cooling operation and closed during heating operation.
Furthermore, the heat exchanger is communicated with a collector for collecting condensed water through a pipeline.
The beneficial effect of adopting above-mentioned further scheme is conveniently retrieving the comdenstion water for indoor utilization or outdoor discharge.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
fig. 3 is a schematic view of the overall structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the system comprises a condenser, 2, a first heat exchanger, 3, a capillary tube, 4, an evaporator, 5, a compressor, 6, a second heat exchanger, 7, a valve, 8, a water pump, 9, a water storage tank, 10, a filter, 11, a drying filter, 12 and a collector.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 3, the utility model provides an air conditioner comdenstion water doublestage returns cold system, include the condenser 1, heat exchanger one 2, capillary 3, evaporimeter 4, compressor 5 and the heat exchanger two 6 that form circulation loop that communicate through the refrigerant pipeline in proper order, through first condensate pipe way intercommunication between evaporimeter 4 and the heat exchanger one 2, through second condensate pipe way intercommunication between heat exchanger one 2 and the heat exchanger two 6, install valve 7 and water pump 8 from evaporimeter 4 to heat exchanger one 2 on the first condensate pipe way in proper order. In the air conditioner refrigeration process, a refrigerant circularly flows in a circulating loop formed by a condenser 1, a first heat exchanger 2, a capillary tube 3, an evaporator 4, a compressor 5 and a second heat exchanger 6 which are sequentially communicated through a refrigerant pipeline so as to carry out refrigeration or heating; during refrigeration, condensed water generated by the evaporator 4 is sequentially sent to the heat exchanger II 6 and the heat exchanger I2 through the water pump 8, heat exchange treatment is successively carried out on a refrigerant with lower temperature at an outlet of the evaporator 4 and a refrigerant with higher temperature at an inlet of the evaporator respectively, and finally the condensed water is discharged through the heat exchanger II 6. The utility model realizes the multi-stage utilization of the condensed water, makes full use of the cold energy of the condensed water to improve the COP value of the air conditioning system, and is energy-saving and environment-friendly; meanwhile, the cold energy of the condensed water is utilized in a closed heat exchange environment, and the damage of the condensed water to other parts of the system is avoided.
It should be noted that, above-mentioned condensate water pipeline hinders the parcel and has the heat preservation skin, and the temperature rise is as little as possible when making from indoor coil pipe department to outdoor heat transfer to guarantee the heat transfer effect.
Example 1
On the basis of the structure, in the embodiment, the drying filter 11 is arranged on the refrigerant pipeline between the first heat exchanger 2 and the capillary tube 3, impurities in the refrigerant are removed through the drying filter 11, equipment blockage is avoided, and the refrigerant pipeline is ensured to be smooth.
As shown in fig. 1, the solid line pipe portion in the figure is a refrigerant pipe a, and the broken line pipe portion in the figure is a condensate pipe B.
Example 2
On the basis of the first embodiment, in the first embodiment, the water storage tank 9 is installed on the first condensed water pipeline between the water pump 8 and the valve 7, on one hand, the water storage tank 9 can store part of condensed water, and on the other hand, the water storage tank 9 can perform pressure stabilization to ensure stable operation of the whole condensed water pipeline.
Example 3
On the basis of the second embodiment, in this embodiment, the filter 10 is installed on the first condensate pipeline between the water storage tank 9 and the valve 7, and the impurities in the condensate water are removed through the filter 10, so that the impurities in the condensate water are prevented from influencing the use of other equipment, the service life of the other equipment is prolonged, and the cost is saved.
Example 4
On the basis of the structure, in the embodiment, the second heat exchanger 6 is communicated with a collector 12 for collecting condensed water, such as a collecting box, through a pipeline, so that the condensed water is convenient to recover. The above-mentioned collector 12 may be an indoor collector for collecting condensed water for domestic use, such as cleaning a toilet; the collector 12 may also be an outdoor drainage system, which is known in the art.
Preferably, the utility model discloses in, heat exchanger 2 and heat exchanger two 6 all adopt the shell and tube heat exchanger, and the shell and tube heat exchanger is small, light in weight, has good corrosion resistance, antipollution, difficult scale deposit and heat transfer performance simultaneously. The shell-and-tube heat exchanger adopts the prior art, the shell-and-tube heat exchanger is provided with two inlets and two outlets, and the inlets and the outlets of the shell-and-tube heat exchanger are connected with corresponding equipment according to requirements.
Preferably, the utility model discloses in, valve 7 is the motorised valve, and degree of automation is high, labour saving and time saving.
It should be noted that the electric valve determines whether to open or not according to the cooling/heating conditions of the air conditioning system, that is, the electric valve is opened during cooling operation and closed during heating operation.
The working principle of the utility model is as follows:
the refrigerant circularly flows in the refrigerant pipeline, the compressor 5 compresses the refrigerant from low-temperature low-pressure gas into high-temperature high-pressure gas, the high-temperature high-pressure gas is condensed into medium-temperature high-pressure liquid through the condenser 1, the medium-temperature high-pressure liquid becomes low-temperature low-pressure liquid, and the refrigerant releases heat to heat in the process; the low-temperature low-pressure liquid refrigerant is sent into the evaporator 4, absorbs heat in the evaporator 4, evaporates to become low-temperature low-pressure vapor, and is sent into the compressor 5 again, thereby completing the refrigeration cycle.
In the refrigeration process, condensed water generated by the evaporator 4 is sequentially sent to the second heat exchanger 6 and the first heat exchanger 2 through the water pump 8, the refrigerant with lower temperature at the outlet of the evaporator 4 and the refrigerant with higher temperature at the inlet of the evaporator are subjected to heat exchange treatment sequentially and respectively, and finally the condensed water is discharged through the second heat exchanger 6.
The utility model discloses energy-conserving effect analysis as follows:
taking a KFR-71NYF split air conditioner as an example for calculation under the meteorological condition of Wuhan, the air conditioning unit and outdoor calculation parameters are shown in a first table and a second table:
air conditioner parameter table
Indoor and outdoor temperature parameter table
| Outdoor temperature in summer | 35℃ |
| Outdoor relative humidity in summer | 90％ |
| Indoor temperature in summer | 25℃ |
| Indoor relative humidity in summer | 50％ |
As shown in fig. 2, in the indoor air treatment process, the indoor fresh air volume ratio m is 20%, and moisture content parameters at each state point are as follows:
dN＝9.88g/kg，dW＝32.73g/kg，dL＝9.88g/kg。
based on the heat-moisture equilibrium principle:
dC＝dN+m(dW-dN)＝14.45g/kg
the condensed water yield of the air conditioning system is as follows:
W＝ρGfresh air(dW-dC)+ρG(dC-dL)
Where ρ is the air density, the mean value is 1.2kg/m3；GFresh airTotal fresh air volume, G total air volume
G＝1200m3/h
GFresh air＝1200×20％＝240m3/h
Therefore, the method comprises the following steps:
W＝1.2×240(32.73-14.45)+1.2×1200(14.45-9.88)＝3.3g/s
in the example, only one stage of heat exchange is assumed, that is, only heat exchange is performed at the outlet of the evaporator 4, so that the refrigerating capacity is calculated to be more conveniently and visually displayed in a pressure-enthalpy diagram, as shown in fig. 3: the traditional air-conditioning refrigerator has the cycle of 1-2-4-7-1, the refrigerant cycle is changed into 1-2-5-6-1 after a condensate water recooling system is added, and the state parameters of all points are shown in the third table:
state parameter table of each point after adding condensed water back cooling system
The heat Q of the condensed water refrigerant exchange is:
Q＝cwater (W)mWater (W)ΔTWater (W)＝cR22mR22ΔTR22
Wherein c isWater (W)Taking the specific heat capacity of water as 4.2J/g.K, mWater (W)Is the flow rate of condensed water, i.e. mWater (W)＝W＝3.3g/s，
Delta T is the temperature rise of the condensed water in the whole two-stage heat exchange process, the temperature of the condensed water at the outlet of the evaporator 4 is about 7 ℃, the state point of the refrigerant in the two-stage heat exchanger is 2 points, and the temperature is 78 ℃, so the delta T isWater (W)Taking the temperature of 60 ℃, then:
Q＝cwater (W)mWater (W)ΔTWater (W)＝4.2×3.3×35＝831.6W
At the same time, cR22For the specific heat capacity of refrigerant R22, assume c for simplicity of calculationR22The temperature of the solution is not changed, and 1.395J/g.K, m is takenR22M is the refrigerant flow rate, as can be seen from the above tableR22＝47.13g/s，
ΔTR22For the temperature rise of refrigerant in the heat exchange process with the comdenstion water, then have:
therefore, the temperature of the refrigerant is reduced by 12.65 ℃ from the state point 4 to the state point 5 (namely, the refrigerant and the condensed water completely exchange heat), and t is5＝t4The physical parameters of the R22 refrigerant at state points 5 and 6 were found from the stimulation at-12.65 ═ 33.45 ℃ and are given in table three.
As can be seen from fig. 3, the increased cooling capacity Δ Q is:
ΔQ＝(h7-h6)mR22＝(257.9-240.42)47.13＝823.8W
the new COP values are:
therefore, the refrigerating capacity is increased by 823.8W, the COP value is increased by 0.3, and the refrigerating capacity is increased by 11.7 percent compared with the traditional system.
It should be noted that the water pump (model MP-40R), the electric valve (model CWX-60P), the condenser (model 14x18x20), the evaporator (model JGDIY) and the shell-and-tube heat exchanger (model OR-60) of the present invention all adopt the prior art, and the above components are electrically connected with the controller (model TC-SCR), and the control circuit between the controller and each component is the prior art.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides an air conditioner comdenstion water doublestage returns cold system which characterized in that: include condenser (1), heat exchanger (2), capillary (3), evaporimeter (4), compressor (5) and heat exchanger two (6) that form circulation circuit through the refrigerant pipeline intercommunication in proper order, evaporimeter (4) with through first condensate pipe way intercommunication between heat exchanger (2), heat exchanger (2) with through second condensate pipe way intercommunication between heat exchanger two (6), follow on the first condensate pipe the evaporimeter (4) arrives valve (7) and water pump (8) are installed in proper order to heat exchanger (2).
2. The air conditioner condensate water dual-stage cold return system of claim 1, wherein: and a water storage tank (9) is arranged on the first condensate pipeline between the water pump (8) and the valve (7).
3. The air conditioner condensate water dual-stage cold return system of claim 2, wherein: and a filter (10) is arranged on the first condensate pipeline between the water storage tank (9) and the valve (7).
4. The air conditioner condensate water dual-stage cold return system of claim 1, wherein: and a drying filter (11) is arranged on the refrigerant pipeline between the first heat exchanger (2) and the capillary tube (3).
5. The air conditioner condensate water dual-stage cold return system of claim 1, wherein: and the first heat exchanger (2) and the second heat exchanger (6) both adopt tube-and-tube heat exchangers.
6. The air conditioner condensate water dual-stage cold return system of claim 1, wherein: the valve (7) is an electric valve.
7. The air conditioner condensate water dual-stage cooling back system as claimed in any one of claims 1 to 6, wherein: and the second heat exchanger (6) is communicated with a collector (12) for collecting condensed water through a pipeline.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112413866A (en) * | 2020-11-09 | 2021-02-26 | 珠海格力电器股份有限公司 | Condensate water recycling assembly and air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112413866A (en) * | 2020-11-09 | 2021-02-26 | 珠海格力电器股份有限公司 | Condensate water recycling assembly and air conditioning system |
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