CN204730300U - Water heater - Google Patents
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- CN204730300U CN204730300U CN201520176549.6U CN201520176549U CN204730300U CN 204730300 U CN204730300 U CN 204730300U CN 201520176549 U CN201520176549 U CN 201520176549U CN 204730300 U CN204730300 U CN 204730300U
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Abstract
The utility model discloses a kind of water heater, comprise: CO 2 trans-critical heat pump system, CO 2 trans-critical heat pump system comprises the air cooler, compressor, regenerator, choke valve and the evaporimeter that are connected successively and form loop, has the carbon dioxide circulated in loop; Water tank, water tank is provided with running water inlet, delivery port and water inlet, and delivery port and water inlet are connected with the two ends of regenerator respectively and form hot water heating loop, are formed with high-temperature region, middle warm area and low-temperature space in water tank; Heating heat exchanger, heating heat exchanger is located in middle warm area and high-temperature region; Heating installation, the two ends of heating installation are connected with the two ends of heating heat exchanger respectively and form loop of heating; Discharging device, discharging device is connected with high-temperature region.According to the water heater of the utility model embodiment, for warm supplying hot water respectively from different parts heat exchange and the water intaking of water tank, the different temperatures demand to hot water can be met simultaneously, simplify total, system cloud gray model controls simpler.
Description
Technical field
The utility model relates to hot water facility technical field, more specifically, relates to a kind of water heater.
Background technology
Along with the raising of people's living standard, water heater more and more becomes a kind of household electrical appliance indispensable in family, and simultaneously along with people are to the increase of hot water demand, the accounting of energy consumption in family's energy consumption of water heater is also increasing.Water heater is in the market still based on traditional electric heater, gas heater and solar water heater.
And these water heaters all more or less have certain disadvantages, as gas heater can produce a large amount of waste gas, as carbon dioxide and carbon monoxide, easily there is intoxication accident.Electric heater observable index is comparatively serious, and electric shock accidents also happens occasionally, and has certain danger.Solar water heater is comparatively large by weather effect, is using region and the time is also very limited.
Also there is Teat pump boiler in market, but the working medium of these Teat pump boilers is generally traditional refrigerant such as R22, R410A, not only can damage the ozone layer but also can greenhouse be brought, and the hot water that these conventional refrigerants will produce more than 60 DEG C can make, and Compressor Discharge Pressure is too high, heat pump Energy Efficiency Ratio (EER) is too low.Therefore the Teat pump boiler product of these conventional refrigerants can only produce the hot water of less than 60 degree, and water temperature is restricted.
In addition, except to except the demand of hot water in family, the demand of hot water heating is also increased year by year, especially there is no the area of central heating at some.Adopt the hot water of conventional cold medium heat pump water heater product due to less than 60 degree can only be produced of hot water heating, be also subject to certain restrictions for heating.Therefore, the structure of water heater haves much room for improvement.
Utility model content
The application makes the discovery of the following fact and problem and understanding based on inventor:
The carbon dioxide of environmental protection natural medium is nontoxic with it, on ozone layer without impact, do not produce the advantage such as greenhouse effects and good macroscopic property, be subject to the people's attention once again.In addition, the higher exhaust gas temperature that trans critical cycle system has and the larger temperature glide of gas cooler, make it have the incomparable advantage of other working medium in Teat pump boiler application.
Meanwhile, carbon dioxide heat-pump has stronger hot water preparing ability, and easily can produce the high-temperature-hot-water of 90 degree, this is very beneficial for hot water heating.
Due to supercritical carbon dioxide characteristic exotherm, be suitable for most directly-heated type heat pump, namely CO 2 trans-critical heat pump system is different from the circulating-heating mode of conventional refrigerant, but leaving water temperature directly reaches the temperature of setting, heating water is effective, may be used in the system of supplying hot water and heating.
The application adopts naturally occurring carbon dioxide to be refrigerant, develops a kind of heating heat pump water-heater system that can be used for warm supplying hot water.In the process of exploitation, fully take into account for the warm different temperatures demand to hot water, make full use of the feature of the operation of CO 2 trans-critical heat pump directly-heated and water the temperature inside the box natural layering, heating circulation and hot water circuit are provided respectively to the hot water of different temperatures.
Specific implementation method is exactly higher to supplying hot water temperature requirements, and hot water effluent supplies water from the high-temperature region that water temperature in water tank is the highest; And heating needed for hot water relatively low to temperature requirement, can neatly by heating heat exchanger be placed on high-temperature region or middle warm area, thus with the hot water heat exchange in water tank.
Chinese patent CN101576283 discloses a kind of water heater with heating-supply from transcritical carbon dioxide heat-pump.Wherein, CO 2 trans-critical heat pump loop is provided with two air coolers of mutually connecting, and an air cooler is used for the heat exchange of heating system, and another air cooler is used for the heat exchange of hot water supply system.When heating and hot water use are out of step, the operation of system controls can be very complicated.Meanwhile, the water of heating system needs at regenerator place constantly to carry out heat exchange, has certain thermal loss.
The utility model people of the application has drawn a kind of complexity that can effectively reduce system cloud gray model and control through research, reduces a kind of water heater of heat exchange loss simultaneously.First air cooler is reduced to one, is running the operation conditions problem need not taking into account two regenerators in control again, effectively reducing the complexity that system cloud gray model controls, ensure that the stability of system cloud gray model.Secondly, heating loop hot water used obtains by utilizing the hot water heat exchange in heating heat exchanger and water tank, compared with the heat exchange in air cooler in correlation technique, this kind of heat transfer effect is better, the structure of heating heat exchanger is also simpler than the structure of air cooler, control more convenient, water heater manufacturing cost is lower.
In addition, considering that heating loop and supplying hot water loop employ same water tank, may there is the problem of interference mutually in two loops.For solving this problem, the application have employed further and the heating heating heat exchanger in loop and the dry point in supplying hot water loop is arranged on different parts from water tank, namely fetch water from water tank high-temperature region in supplying hot water loop, the heat exchanger that heats then is placed on middle warm area, to reduce mutual interference between the two, this operation from different parts water intaking and heat exchange simultaneously also meets the different demands of these two loops for water temperature.
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of water heater, described water heater can meet supplying hot water simultaneously and heating runs control more simply to the demand of different temperatures, and thermal loss is less.
According to water heater of the present utility model, comprise: CO 2 trans-critical heat pump system, described CO 2 trans-critical heat pump system comprises the air cooler, compressor, regenerator, choke valve and the evaporimeter that are connected successively and form loop, has the carbon dioxide circulated in described loop; Water tank, described water tank is provided with running water inlet, delivery port and water inlet, and described delivery port and described water inlet are connected with the two ends of described regenerator respectively and form hot water heating loop, are formed with high-temperature region, middle warm area and low-temperature space in described water tank; Heating heat exchanger, described heating heat exchanger is located in described middle warm area and described high-temperature region; Heating installation, the two ends of described heating installation are connected with the two ends of described heating heat exchanger respectively and form loop of heating; Discharging device, described discharging device is connected with described high-temperature region.
According to water heater of the present utility model, make full use of the feature of water temperature delamination in CO 2 trans-critical heat pump cycle characteristics and water tank, select respectively to fetch water from water tank different parts according to for the warm different temperatures demand of supplying hot water to hot water, avoid the shortcoming that conventional heating hot-water heating system supply water temperature is difficult to meet simultaneously, the different temperatures demand to hot water can be met, simplify system, system cloud gray model controls simpler, and thermal loss is less.
In addition, following additional technical characteristic can also be had according to water heater of the present utility model:
According to an embodiment of the present utility model, described heating heat exchanger is located at described middle warm area, and described heating heat exchanger has import and outlet, and described import is located at described low-temperature space, and described outlet is located at described middle warm area.
According to an embodiment of the present utility model, described running water inlet place is provided with water intaking valve.
According to an embodiment of the present utility model, water heater also comprises the first water inlet branch road, and the two ends of described first water inlet branch road are connected with described water intaking valve with described discharging device respectively.
According to an embodiment of the present utility model, also comprise water supply tank and the second water inlet branch road, one end of described second water inlet branch road is connected with described water supply tank, and the other end of described second water inlet branch road is connected with described heating loop, and described second water inlet branch road is provided with stop valve.
According to an embodiment of the present utility model, described discharging device is outlet valve.
According to an embodiment of the present utility model, the hot water heating loop between described delivery port and described regenerator is provided with hot water circulating pump.
According to an embodiment of the present utility model, the heating loop between described heating heat exchanger and described heating installation is provided with heating water circulating pump.
According to an embodiment of the present utility model, described high-temperature region, middle warm area and low-temperature space from top to bottom distribute successively in described water tank.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The water heater 100 according to the utility model embodiment is described in detail below in conjunction with accompanying drawing.
With reference to shown in Fig. 1, comprise CO 2 trans-critical heat pump system, water tank 6, heating installation 9, heating heat exchanger 13 and discharging device 7 according to the water heater 100 of the utility model embodiment.
CO 2 trans-critical heat pump system comprises the air cooler 2, compressor 1, regenerator 3, choke valve 4 and the evaporimeter 5 that are connected successively and form loop.There is in loop the carbon dioxide circulated.Water tank 6 is provided with running water inlet 61, delivery port 62 and water inlet 63, and delivery port 62 and water inlet 63 are connected with the two ends of regenerator 3 respectively and form hot water heating loop.High-temperature region A, middle warm area B and low-temperature space C is formed in water tank 6.
Heating heat exchanger 13 is located in middle warm area and high-temperature region.The two ends of heating installation 9 are connected to form loop of heating with heating heat exchanger 13 two ends respectively; also the hot water in loop of namely heating is obtained by heating heat exchanger 13 and the hot water heat exchange of warm area B in water tank 6; heat exchange effect only born by heating heat exchanger, and do not bear and change water function.Hot water in the hot water of such heating and water tank is separated, and the water in heating loop can not mix with the water in water tank, ensure that the health of supplying hot water.Discharging device 7 is connected with high-temperature region A, makes discharging device 7 directly can go out hot water.
According to the water heater 100 of the utility model embodiment, make full use of the feature of water temperature delamination in CO 2 trans-critical heat pump cycle characteristics and water tank 6, select to fetch water from the different parts of water tank 6 to the different temperatures demand of hot water according to for warm supplying hot water, avoid the shortcoming that conventional heating hot-water heating system supply water temperature is difficult to meet simultaneously, also simplify system, needs water tank 6, a set of heating recycle system just can meet the different temperatures demand to hot water simultaneously.Simultaneously, an air cooler 2 is only had in this CO 2 trans-critical heat pump system, need not take into account the operation conditions of two air coolers 2 in correlation technique, controlling run is simpler, and the method that the utility model adopts can not produce any adverse effect to the stable operation of system.
As shown in Figure 1, in examples more of the present utility model, heating heat exchanger 13 is located at middle warm area B, and heating heat exchanger 13 has import and outlet, and import is located at low-temperature space C, and outlet is located at middle warm area B.Thus, the different parts of water tank 6 is taken from respectively from the hot water that the hot water of discharging device 7 outflow is used with the heat exchange of heating heat exchanger 13, both can fetch water simultaneously, can not interfere each other, and can well meet heating and the different demands of supplying hot water for temperature.
High-temperature region A, middle warm area B and low-temperature space C from top to bottom distribute successively in water tank 6.Here, the temperature range of high-temperature region A is 100 DEG C-70 DEG C, the temperature range of middle warm area B is 70 DEG C-35 DEG C, and the temperature range of low-temperature space C is 0 DEG C-35 DEG C.
Alternatively, running water inlet 61 place is provided with water intaking valve 8, intakes to control water tank 6.Alternatively, discharging device 7 is outlet valve, controls hot water outflow to facilitate.
According to embodiments more of the present utility model, the two ends that water heater 100 also comprises the first water inlet branch road 12, first water inlet branch road 12 are connected with water intaking valve 8 with discharging device 7 respectively.When water intaking valve 8 is opened, cold water can flow to discharging device 7 from the first water inlet branch road 12, and mixes with the hot water flowing to discharging device 7 from high-temperature region A, makes the water temperature of discharging device 7 can be adjusted, avoids that temperature is too high causes potential safety hazard.
In other embodiments of the present utility model, heating heat exchanger 13 is located at high-temperature region A.When requiring higher for some to heating, this kind of structure can be adopted: the hot water of namely heat heat exchanger 13 and high-temperature region A carries out the structure of heat exchange.
Alternatively, one end that water heater 100 also comprises water supply tank 14 and the second water inlet branch road 15, second water inlet branch road 15 is connected with water supply tank 14, and the other end of the second water inlet branch road 15 is connected with heating loop.Water in water supply tank 14 can by second water inlet branch road 15 flow into heating loop in, to heating loop carry out supply with water, with avoid heat loop occur lack of water situation occur, ensure heating effect.Further, the second water inlet branch road 15 can arrange stop valve 16, and stop valve 16 can control the water inlet of the second water inlet branch road 15, ensures can enter appropriate water in heating loop.
As shown in Figure 1, hot water heating loop between delivery port 62 and regenerator 3 can arrange hot water circulating pump 11, hot water circulating pump 11 can provide power, makes the water of the low-temperature space C of water tank 6 can flow in air cooler 2 the high-temperature region A carrying out heating and then flow into water tank 6.Heating loop between middle warm area B and heating installation 9 can arrange the water circulating pump 10 that heats, and to supply power to the water extraction in heating loop, water is circulated, and heating effect is good.
Below in conjunction with Fig. 1, the operation principle of the water heater 100 according to the utility model embodiment is described.As shown in Figure 1, water heater 100 comprises two large loops: main circulation loop and water tank closed circuit.Main circulation loop is by CO 2 trans-critical heat pump System's composition.Specifically, main circulation loop is made up of the evaporimeter 5 of compressor 1, air cooler 2, regenerator 3, choke valve 4 and band blower fan 51.Water tank closed circuit is made up of hot water heating loop, supplying hot water loop and heating loop, three, loop.Wherein, hot water heating loop is made up of water tank 6, hot water circulating pump 11 and air cooler 2.Supplying hot water loop is made up of water tank 6, discharging device 7 and pipeline.Heating loop is made up of water tank 6, heating water circulating pump 10 and heating installation 9 and heating heat exchanger 13, and wherein heating loop do not participated in directly by water tank 6, but has an effect with heating heat exchanger 13.
CO 2 trans-critical heat pump system main circulation loop forms outdoor machine part.Carbon dioxide is compressed into the supercritical fluid of HTHP after compressor 1, this fluid when air cooler 2 and water tank 6 water of coming that circulates carry out heat exchange, thus water is heated, carbon dioxide after air cooler 2 is again through regenerator 3, by from evaporimeter 5 out low pressure CO 2 heating, improve its degree of superheat, and reduce further through the temperature of the high-pressure carbon dioxide of regenerator 3, again after expansion valve, become the liquid of low-pressure low-temperature, evaporate in evaporimeter 5, heat in absorption chamber outer air, and be further heated after regenerator 3, finally get back to compressor 1 to complete and once circulate.
In hot water heating loop, hot water circulating pump 11 draws water to air cooler 2 from the bottom low-temperature space C of water tank 6, by carrying out with the carbon dioxide refrigerant of HTHP the temperature that water to be heated to setting by heat exchange, is returned the high-temperature region A at water tank 6 top by the hot water heated.
For supplying hot water loop, by natural pressure in water tank 6 directly from the high-temperature region A draining at water tank 6 top to putting i.e. discharging device 7 with water level.Meanwhile, in order to regulate hot water serviceability temperature, inlet pipeline there are the first water inlet branch road 12 and hot-water line by discharging device 7, such as outlet valve mixed hot water, make the output water temperature of discharging device 7 can be adjusted.
For heating loop, under the effect of heating water circulating pump 10, in heating heat exchanger 13, the hot water that obtains of heat exchange is pumped down to heating installation 9, and as floor heating heat exchanger, the low-temperature space that the backwater of heating installation 9 flows through the bottom of water tank 6 again enters in heating heat exchanger 13 and carries out heat exchange.
In sum, according to the water heater 100 of the utility model embodiment, have by the evaporimeter 5 of compressor 1, air cooler 2, regenerator 3, choke valve 4 and band blower fan 51 form across facing carbon dioxide heat pump system and the hot water heating loop based on this system, supplying hot water loop and heating loop, make the water temperature district can in water tank with different temperatures, and supplying hot water and heating can respectively from different parts water intaking and the heat exchange of water tank 6.Such as, the warm area B from water tank 6 that heats exchanges heat for, and the low-temperature space C after heating installation 9 bottom water tank 6 returns heating heat exchanger 13; Supplying hot water is fetched water from the high-temperature region A of water tank 6, and high temperature conduit has outlet valve mixing running water and hot water, to meet the demand of user to different water temperature.
This system only has an air cooler 2, ensure that the stability of system cloud gray model, and control aspect is also simple.And the hot water in heating loop is by heating heat exchanger 13 warm area B heat-obtaining from water tank 6, share a water tank 6 with supplying hot water loop and make use of the different parts of water tank 6 respectively, this system can meet the different demands for warm supplying hot water completely, and only need a water tank 6 and a set of heating recycle system, structure is simpler, system run all right, and serviceability is good.
According to the water heater 100 of the utility model embodiment other form and operation be known for the person of ordinary skill of the art, be not described in detail at this.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.
In the utility model, unless otherwise clearly defined and limited, term " is connected ", the term such as " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the water heater according to the utility model embodiment.
Reference numeral:
Water heater 100;
Compressor 1; Air cooler 2; Regenerator 3; Choke valve 4; Evaporimeter 5; Blower fan 51; Water tank 6; Running water inlet 61; Delivery port 62; Water inlet 63; Discharging device 7; Water intaking valve 8; Heating installation 9; Heating water circulating pump 10; Hot water circulating pump 11; First water inlet branch road 12; Heating heat exchanger 13; Water supply tank 14; Second water inlet branch road 15; Stop valve 16.
Claims (9)
1. a water heater, is characterized in that, comprising:
CO 2 trans-critical heat pump system, described CO 2 trans-critical heat pump system comprises the air cooler, compressor, regenerator, choke valve and the evaporimeter that are connected successively and form loop, has the carbon dioxide circulated in described loop;
Water tank, described water tank is provided with running water inlet, delivery port and water inlet, and described delivery port and described water inlet are connected with the two ends of described regenerator respectively and form hot water heating loop, are formed with high-temperature region, middle warm area and low-temperature space in described water tank;
Heating heat exchanger, described heating heat exchanger is located in described middle warm area and described high-temperature region;
Heating installation, the two ends of described heating installation are connected with the two ends of described heating heat exchanger respectively and form loop of heating;
Discharging device, described discharging device is connected with described high-temperature region.
2. water heater according to claim 1, is characterized in that, described heating heat exchanger is located at described middle warm area, and described heating heat exchanger has import and outlet, and described import is located at described low-temperature space, and described outlet is located at described middle warm area.
3. water heater according to claim 1, is characterized in that, described running water inlet place is provided with water intaking valve.
4. water heater according to claim 3, is characterized in that, also comprises the first water inlet branch road, and the two ends of described first water inlet branch road are connected with described water intaking valve with described discharging device respectively.
5. water heater according to claim 1, it is characterized in that, also comprise water supply tank and the second water inlet branch road, one end of described second water inlet branch road is connected with described water supply tank, the other end of described second water inlet branch road is connected with described heating loop, and described second water inlet branch road is provided with stop valve.
6. water heater according to claim 1, is characterized in that, described discharging device is outlet valve.
7. water heater according to claim 1, is characterized in that, the hot water heating loop between described delivery port and described regenerator is provided with hot water circulating pump.
8. water heater according to claim 1, is characterized in that, the heating loop between described heating heat exchanger and described heating installation is provided with heating water circulating pump.
9. the water heater according to any one of claim 1-8, is characterized in that, described high-temperature region, middle warm area and low-temperature space from top to bottom distribute successively in described water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520176549.6U CN204730300U (en) | 2015-03-26 | 2015-03-26 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520176549.6U CN204730300U (en) | 2015-03-26 | 2015-03-26 | Water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204730300U true CN204730300U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520176549.6U Withdrawn - After Issue CN204730300U (en) | 2015-03-26 | 2015-03-26 | Water heater |
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| Country | Link |
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| CN (1) | CN204730300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697165A (en) * | 2015-03-26 | 2015-06-10 | 广东美的暖通设备有限公司 | Water heater |
| CN112377979A (en) * | 2020-11-06 | 2021-02-19 | 青岛海信日立空调***有限公司 | Air source heat pump unit |
-
2015
- 2015-03-26 CN CN201520176549.6U patent/CN204730300U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697165A (en) * | 2015-03-26 | 2015-06-10 | 广东美的暖通设备有限公司 | Water heater |
| CN112377979A (en) * | 2020-11-06 | 2021-02-19 | 青岛海信日立空调***有限公司 | Air source heat pump unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151028 Effective date of abandoning: 20180427 |