CN202660737U - Adjustable instant-heating type heat pump water heater - Google Patents
Adjustable instant-heating type heat pump water heater Download PDFInfo
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- CN202660737U CN202660737U CN2012202811110U CN201220281111U CN202660737U CN 202660737 U CN202660737 U CN 202660737U CN 2012202811110 U CN2012202811110 U CN 2012202811110U CN 201220281111 U CN201220281111 U CN 201220281111U CN 202660737 U CN202660737 U CN 202660737U
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Abstract
The utility model discloses an adjustable instant-heating type heat pump water heater which comprises a refrigerant circulation system, a water supplying system and a control system. The water supplying system comprises a cold water pipe, a flow adjustable valve, a water mixing valve and a heating device, wherein the cold water pipe is divided into two paths, one path of the cold water pipe is connected with an inlet water pipe of a condenser through the flow adjusting valve and then connected with the water mixing valve by an outlet water pipe of the condenser through the heating device, and the other path of the cold water pipe is directly connected with the water mixing valve; and a controller accurately controls the water temperature by means of combined working of compressor capacity-variable stepless adjusting and water flow adjusting. The adjustable instant-heating type heat pump water heater is high in energy efficiency ratio and good in energy conservation effect, reduces starting current by means of low-load starting, and does not influence using of other household appliances; the heating device is adopted for solving the problem of heating during starting or midway shutdown in the prior art; by means of the combined working of the capacity-variable stepless adjusting and water flow adjusting, the phenomenon of high-pressure alarm cannot occur, and normal working of the water heater is ensured; no water tank is used, so that the space is saved; and the adjustable instant-heating type heat pump water heater can be used once started, and users do not need to wait for hot water.
Description
Technical field
The utility model relates to water heater, especially a kind of adjustable instant heating type heat pump water heater.
Background technology
Teat pump boiler utilizes contrary Carnot cycle principle, by consuming a small amount of electric energy, the heat of low temperature environment shifted to hot environment (hot water), and be a kind of energy-conserving product of producing health hot water, annual Energy Efficiency Ratio reaches about 3.0.At present the Teat pump boiler pattern has two kinds: two kinds of circulating heating type and hot types, and the former is that the water storage temperature is elevated to 50 ~ 60 ℃ the most at last by the water circulation heating with storage tank; Latter is in the future to water (5 ~ 35 ℃ of temperature) one-time heating to 45 ~ 60 of running water pipe ℃, hot type divides directly-heated type and Instant heating type two kinds, directly-heated type is that the hot water behind condenser one-time heating to 45 ~ 60 ℃ is delivered to first attemperater, deliver to the user from attemperater again, directly-heated type is mainly used in the engineering unit, and compressor horsepower is generally more than 5HP.The Instant heating type water tank of not establishing, directly deliver to user's shower bath, adopt the instant heating type heat pump water heater of cistern free simple for structure, requisite space is few, can not leak, it is a kind of desirable Teat pump boiler product, but in the market without the practical application product, be detected in a small amount of patent, reason is that all patents all adopt to control by discharge and adds heat, and then the control water temperature, in fact this method is impracticable, reason is that the performance characteristic of Teat pump boiler is the variation with environment temperature, Teat pump boiler to add the thermal change amplitude large, environment temperature is when 0 ℃ of left and right sides, Energy Efficiency Ratio is about 2.5, and environment temperature is when reaching more than 20 ℃, and Energy Efficiency Ratio reaches more than 4.0, and it is lower to need to add the heating efficiency of heat when large.The Selection and Design of Teat pump boiler is based on and satisfies the water demand in winter, and when Teat pump boiler used in summer, Energy Efficiency Ratio was large, depending merely on current control can't effectively regulate and add heat, cause easily the heat pump alarm for high voltage when discharge is too small, heating water temperature out is very high, and the user can't use.Other conventional heat pump compressor, electric current is very large during startup, easily other household electrical appliance is caused voltge surge, might cause the household electrical appliance fault.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, a kind of safe and convenient, adjustable instant heating type heat pump water heater that efficient is high of using is provided, solved Teat pump boiler control water temperature difficult, when going out water unstable and heat pump and starting other household electrical appliance are impacted problem.
The utility model is achieved through the following technical solutions:
A kind of adjustable instant heating type heat pump water heater comprises refrigerant-cycle systems, water system, control system;
Described refrigerant-cycle systems comprises compressor, evaporimeter, condenser, expansion valve, two-way electromagnetic valve; The outlet of described evaporimeter is connected with the import of compressor by pipeline; The outlet of described compressor is connected with the refrigerant inlet of condenser and the entrance of two-way electromagnetic valve respectively by pipeline, and the outlet of described two-way electromagnetic valve is connected with the import of evaporimeter by pipeline; The refrigerant outlet of described condenser is connected with the entrance of evaporimeter through expansion valve; Described compressor adopts digital scroll compressor.
Described water system comprises cold water pipe, flow control valve, mixed water valve, heater; Described cold water pipe is divided into two-way, and the flow control valve of wherein leading up to is connected with the entrance water pipe of condenser, and the outlet water pipe by condenser connects mixed water valve by heater again, and another road directly connects mixed water valve; Shower is installed in the outlet of described mixed water valve; Described evaporimeter also comprises a blower fan.
Described control system comprises defrosting detecting sensor, current detecting sensor, cooling-water temperature sensor, the compressor transfiguration step-less adjustment controller that is connected with fuzzy controller; Described defrosting detecting sensor is arranged on the evaporimeter; Described current detecting sensor is arranged on the outlet water pipe of flow control valve; Described cooling-water temperature sensor has 3, and on the import water pipe that is arranged at flow control valve, another is arranged on the outlet water pipe of condenser, also has between the water pipe line that is arranged on mixed water valve and heater; Described compressor transfiguration step-less adjustment controller is connected with compressor; Described fuzzy controller also is connected with two-way electromagnetic valve.
When shower is opened, the current detecting sensor is experienced signal, low the carrying of compressor starts, refrigerant-cycle systems work, condenser is to cold water (the being running water) heating from cold water pipe, fuzzy controller is regulated the output capacity of compressor and the water flow of shower by the signal of current detecting sensor, cooling-water temperature sensor, makes leaving water temperature and flow satisfy customer requirements.Use in the hot water process the user; the of short duration shower phenomenon (when being coated with shampoo such as wash my hair) of closing can often appear; generally reopen shower after about 20～180 seconds; after these family expenses transfiguration step-less adjustment instant heating type heat pump water heater (hereinafter to be referred as water heater) is shut down; two-way electromagnetic valve is opened immediately; evaporimeter directly communicates with condenser 10, and pressure tends to balance very soon, guarantees the immediately startup after water heater is shut down.When environment temperature was lower than 10 ℃, frost can appear in evaporimeter 2, and during intermitten service, twice operation is lower than the defrost under stopped status of when setting value and once guarantees the efficient operation of refrigerant-cycle systems blanking time.
The utility model volume is little, does not take up space, and does not have the water tank corrosion phenomenon, and is convenient, plug and play, and the low low pressure soft start that carries can not cause other household electrical appliance and use surge, compares with the instant electric water heater, and the utility model Energy Efficiency Ratio is high, and is energy-conservation.
The utility model adopts heater to remedy prior art start-up course or the heating problems of stopping process midway; The utility model technological means is simple and easy to do, has energetically technique effect and application value.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the local connection diagram of Fig. 1, i.e. refrigerant circulation schematic diagram during of short duration shutdown.
The specific embodiment
Below in conjunction with specific embodiment the utility model is done further concrete detailed description the in detail, but embodiment of the present utility model is not limited to this, the technological parameter for not indicating especially can carry out with reference to routine techniques.
Embodiment
As shown in Figure 1, the adjustable instant heating type heat pump water heater of the utility model comprises refrigerant-cycle systems, water system, control system;
Described refrigerant-cycle systems comprises compressor 1, evaporimeter 2, condenser 10, expansion valve 6, two-way electromagnetic valve 11; The outlet of described evaporimeter 2 is connected by the import of pipeline with compressor 1; The outlet of described compressor 1 is connected with the refrigerant inlet of condenser 10 and the entrance of two-way electromagnetic valve 11 respectively by pipeline, and the outlet of described two-way electromagnetic valve 11 is connected by the import of pipeline with evaporimeter 2; The refrigerant outlet of described condenser 10 is connected with the entrance of evaporimeter 2 through expansion valve 6;
Described water system comprises cold water pipe 15, flow control valve 14, mixed water valve 8, heater 18; Described cold water pipe is divided into two-way, and the flow control valve 14 of wherein leading up to is connected with the entrance water pipe of condenser 10, and the outlet water pipe by condenser 10 connects mixed water valve 8 by heater 18 again, and another road directly connects mixed water valve 8;
Described control system comprises defrosting detecting sensor 12, current detecting sensor 13, cooling-water temperature sensor 9, the compressor transfiguration step-less adjustment controller 16 that is connected with fuzzy controller 17; Described defrosting detecting sensor 12 is arranged on the evaporimeter 2; Described current detecting sensor 12 is arranged on the outlet water pipe of flow control valve 14; Described cooling-water temperature sensor 9 has 3, and on the import water pipe that is arranged at flow control valve 14, another is arranged on the outlet water pipe of condenser 10, also has between the water pipe line that is arranged on mixed water valve 8 and heater 18; Described compressor transfiguration step-less adjustment controller 16 is connected with compressor 1; Described fuzzy controller 17 also is connected with two-way electromagnetic valve 11.
Described compressor 1 adopts digital scroll compressor; Shower 7(or tap are installed in the outlet of described mixed water valve 8); Described evaporimeter 2 also comprises a blower fan 3.
Operation principle of the present utility model: when shower 7 is opened, current detecting sensor 13 is experienced signal, compressor 1 low carrying starts, refrigerant-cycle systems work, 10 pairs of cold water from cold water pipe 15 of condenser (being running water) heating, fuzzy controller 17 is regulated the output capacity of compressor 1 and the water flow of shower 7 by the signal of current detecting sensor 13, cooling-water temperature sensor 9, makes leaving water temperature and flow satisfy customer requirements.Yet; use in the hot water process the user; can often need of short duration situation (when being coated with shampoo such as wash my hair) of closing shower 7; generally reopen shower 7 after about 20～180 seconds; after these family expenses transfiguration step-less adjustment instant heating type heat pump water heater (hereinafter to be referred as water heater) was shut down, two-way electromagnetic valve 11 was opened immediately, and evaporimeter 2 directly communicates with condenser 10; pressure tends to balance very soon, guarantees the immediately startup after water heater is shut down.When environment temperature was lower than 10 ℃, frost can appear in evaporimeter 2, and during intermitten service, twice operation is lower than the defrost under stopped status of when setting value and once guarantees the efficient operation of refrigerant-cycle systems blanking time.
Change volume output by the running frequency that changes compressor 1, thereby regulate heating capacity; Compressor 1 frequency shift amplitude is 0～70HZ, each run starts, the frequency change amplitude is 1HZ/ second, need about 1 minute time when reaching steady operational status, need to emit a large amount of cold water, startup after midway shutting down also needs 1 minute the water time that lets cool, and therefore needs to adopt ancillary method to remedy start-up course or the heating problems of stopping process midway; For this reason, the outlet water pipe at condenser in this example has been installed heater 18, such as the heating wire about 4KW.When the user opened shower 7, tap water flows condenser 10, heat pump started, and compressor 1 frequency begins to begin to increase progressively second with 1HZ/ from 0HZ, and the heat pump quantity not sufficient further is heated to temperature required value water is heated to 40 ℃ by heater 18.When compressor 1 frequency adjustment behind the required frequency band of heating, after coming to enter condenser 10 and be heated to about 40 ~ 55 ℃ to the water of cold water pipe, deliver to that the user directly uses or with use after the running water that does not have heating mixes.
For further understanding this patent, the below illustrates.
Before using this water heater, set 40 ℃ of supply water temperatures at fuzzy controller 17 panels first, water-water jet 8 is arranged on whole hot water position, when shower 7 is opened, flow control valve 14 is under flow action, output signal, fuzzy controller 17 is successively to blower fan 3, compressor 1 sends startup command, this moment, water heater belonged to the low startup of carrying, the temperature value of the inflow temperature value that fuzzy controller 17 is sensed according to cooling-water temperature sensor 9 and evaporimeter 1 side defrosting detecting sensor 12 is made intellectual analysis and is judged, compressor 1 output capacity is adjusted under this operating mode sets value, water heater can obtain required supply water temperature when moving basically under this output capacity, deviation can finely tune to meet the demands by further output capacity a little.During stable operation, airborne heat energy is passed to the cold-producing medium in the evaporimeter 2, and under the supercharging transmitting effect of compressor 1, cold-producing medium enters into condenser 10, cold water (running water) in the heat transferred condenser 10 of cold-producing medium rises to the desired value of user with water temperature.
Why this water heater will hang down to carry starts (i.e. the low low pressure soft start that carries), when reason is that compressor 1 starts, starting current be running current 5～8 times, the rated power of 3HP compressor about 2.5KW, rated current 10～13A, starting current is more than the 50A, considerably beyond the predetermined value of general family electrical line setting, all the more so concerning the building construction that certain time limit is arranged, other household electrical appliance are caused use surge, therefore, startup in low year is very important.
In user's bathing process; when wash my hair is coated with shampoo; of short duration shower 7 phenomenons of closing often can appear; this moment, compressor 1 output capacity dropped to adjustable minimum; two-way electromagnetic valve 11 is opened simultaneously, directly enters into evaporimeter 2 from compressor 1 refrigerant vapour out, is unlikely because the water temperature over-high in the condenser 10 causes water heater to shut down; water heater is in the non-operating condition that heats all the time, as shown in Figure 2.When shower 7 was opened again, two-port valve electromagnetism 11 was closed, and water heater returns to rapidly normal operating condition.
Fig. 2 is the partial schematic diagram of Fig. 1, and purpose is for circulating path clearer, cold-producing medium when understanding the of short duration shutdown of water heater efficiently.
As seen from Figure 2; except above-described for the bathing process of short duration close shower 7 time running status; also be used for defrost process: in the winter time during outside air temperature lower (below 10 ℃); usually meeting frosting on the evaporimeter 2; if during continuous operating time very long (above 1 hour); frosting thickness heat exchanging causes adverse effect on the evaporimeter 2; need defrosting; for avoiding the defrost phenomenon in the shower process, occurring suddenly; move by force defrost in blanking time at compressor 1; two-way electromagnetic valve 11 is opened, and refrigerant vapour directly directly enters into evaporimeter 2 from compressor 1 outlet, and the frost on its surface is melted.Certainly, except adopt by on address the bypass defrost method that pipeline 5 consists of, can also adopt the method defrosting of laying heating wire at evaporimeter 1.
As mentioned above, just can realize preferably the utility model.
Above-described embodiment only is the better embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other are any not to deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1. an adjustable instant heating type heat pump water heater comprises refrigerant-cycle systems, water system, control system; It is characterized in that:
Described refrigerant-cycle systems comprises compressor, evaporimeter, condenser, expansion valve, two-way electromagnetic valve; The outlet of described evaporimeter is connected with the import of compressor by pipeline; The outlet of described compressor is connected with the refrigerant inlet of condenser and the entrance of two-way electromagnetic valve respectively by pipeline, and the outlet of described two-way electromagnetic valve is connected with the import of evaporimeter by pipeline; The refrigerant outlet of described condenser is connected with the entrance of evaporimeter through expansion valve;
Described water system comprises cold water pipe, flow control valve, mixed water valve, heater; Described cold water pipe is divided into two-way, and the flow control valve of wherein leading up to is connected with the entrance water pipe of condenser, and the outlet water pipe by condenser connects mixed water valve by heater again, and another road directly connects mixed water valve;
Described control system comprises defrosting detecting sensor, current detecting sensor, cooling-water temperature sensor, the compressor transfiguration step-less adjustment controller that is connected with fuzzy controller; Described defrosting detecting sensor is arranged on the evaporimeter; Described current detecting sensor is arranged on the outlet water pipe of flow control valve; Described cooling-water temperature sensor has 3, and on the import water pipe that is arranged at flow control valve, another is arranged on the outlet water pipe of condenser, also has between the water pipe line that is arranged on mixed water valve and heater; Described compressor transfiguration step-less adjustment controller is connected with compressor; Described fuzzy controller also is connected with two-way electromagnetic valve.
2. adjustable instant heating type heat pump water heater according to claim 1 is characterized in that, described compressor adopts digital scroll compressor.
3. adjustable instant heating type heat pump water heater according to claim 2 is characterized in that, shower is installed in the outlet of described mixed water valve.
4. adjustable instant heating type heat pump water heater according to claim 3 is characterized in that, described evaporimeter also comprises a blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202811110U CN202660737U (en) | 2012-06-14 | 2012-06-14 | Adjustable instant-heating type heat pump water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202811110U CN202660737U (en) | 2012-06-14 | 2012-06-14 | Adjustable instant-heating type heat pump water heater |
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| CN202660737U true CN202660737U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202811110U Expired - Fee Related CN202660737U (en) | 2012-06-14 | 2012-06-14 | Adjustable instant-heating type heat pump water heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721173A (en) * | 2012-06-14 | 2012-10-10 | 华南理工大学 | Adjustable instant water heater for heat pump |
| CN103727677A (en) * | 2014-01-02 | 2014-04-16 | 福州斯狄渢电热水器有限公司 | Instant heating type water heater constant temperature control system and method |
| CN114061125A (en) * | 2020-07-30 | 2022-02-18 | 广东美的暖通设备有限公司 | Control method and control device of air conditioning system, controller and air conditioning system |
-
2012
- 2012-06-14 CN CN2012202811110U patent/CN202660737U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721173A (en) * | 2012-06-14 | 2012-10-10 | 华南理工大学 | Adjustable instant water heater for heat pump |
| CN103727677A (en) * | 2014-01-02 | 2014-04-16 | 福州斯狄渢电热水器有限公司 | Instant heating type water heater constant temperature control system and method |
| CN103727677B (en) * | 2014-01-02 | 2016-06-15 | 福州斯狄渢电热水器有限公司 | A kind of control method of immediately heating water heater thermostatic control system |
| CN114061125A (en) * | 2020-07-30 | 2022-02-18 | 广东美的暖通设备有限公司 | Control method and control device of air conditioning system, controller and air conditioning system |
| CN114061125B (en) * | 2020-07-30 | 2024-03-19 | 广东美的暖通设备有限公司 | Control method and control device of air conditioning system, controller and air conditioning system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150614 |
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| EXPY | Termination of patent right or utility model |