CN201377903Y - Heat pump water heater - Google Patents
Heat pump water heater Download PDFInfo
- Publication number
- CN201377903Y CN201377903Y CN200920055261U CN200920055261U CN201377903Y CN 201377903 Y CN201377903 Y CN 201377903Y CN 200920055261 U CN200920055261 U CN 200920055261U CN 200920055261 U CN200920055261 U CN 200920055261U CN 201377903 Y CN201377903 Y CN 201377903Y
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- solenoid valve
- normally
- heat exchanger
- valve
- pump water
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Abstract
The utility model discloses a heat pump water heater which comprises the following components in end-to-end connection in sequence to form a circulation loop: a compressor, a liquid refrigerant heat exchanger, a throttle, an air refrigerant heat exchanger, a throttling pipe and a gas-liquid separator, wherein a defroster is arranged between the throttling pipe and the gas-liquid separator; a first normally-closed solenoid valve, a second normally-closed solenoid valve, a normally-open solenoid valve, a first non-return valve and a second non-return valve are also arranged inside the heat pump water heater; the first normally-closed solenoid valve is positioned between the throttle and the air refrigerant heat exchanger; the second normally-closed solenoid valve is connected in parallel to the two ends of the throttling pipe; the normally-open solenoid valve and the first non-return valve are connected in series and then both connected in parallel to the two ends of the path that is formed by connecting the liquid refrigerant heat exchanger and the first normally-closed solenoid valve; and one end of the second non-return valve is connected to the pipeline between the normally-open solenoid valve and the first non-return valve and the other end thereof is connected with the pipeline between the throttling pipe and the defroster. The heat pump water heater works without needing the four-way valve to switch during the defrosting, and has the advantages of good defrosting effect and capability of effectively ensuring that the system runs normally and efficiently.
Description
Technical field
The utility model relates to a kind of hot water machine, does not need the cross valve commutation to realize the heat pump water-heating machine of energy highly effective defrosting when being a kind of the defrosting specifically.
Background technology
At present, the heat pump water-heating machine of home and abroad, under the low temperature environment heating condition, the frosting of off-premises station regular meeting, for guaranteeing the operate as normal of heat pump water-heating machine, off-premises station must regularly defrost.Existing heat pump water-heating machine all is cross valve commutations when system need defrost, and condenser and evaporimeter " is exchanged " operation get final product.But because in heat pump water-heating machine, the used heat exchanger in high-pressure side is board-like or other form heat exchanger, characteristic according to itself, if condenser and evaporimeter frequent " exchanging " operation, heat exchanger is interior may can't to move system because the too low heat exchanger bursting by freezing that cause of the working medium temperature that flows through damages, and can not carry out effective, thorough, defrosting reliably, influence the operate as normal of hot water machine, system finally also can reduce operating efficiency because of frequent " exchanging " operation of condenser and evaporimeter.For this reason, the applicant thinks: both guaranteed the needs that defrost, can make system high efficiency again, run well is technical problem that needs to be resolved hurrily in the heat pump water-heating machine product.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the heat pump water-heating machine that do not need cross valve to commutate when a kind of the defrosting is provided, defrosting effect is good, can effectively guarantee system high efficiency and normal operation.
Goal of the invention of the present utility model is achieved in that a kind of heat pump water-heating machine, comprise the compressor that connects into closed circuit in turn from beginning to end, the liquid refrigerant heat exchanger, flow controller, air cooling agent heat exchanger, throttle pipe and gas-liquid separator, it is characterized in that: be provided with frost removal between described throttle pipe and the gas-liquid separator, also be provided with first normally closed solenoid valve in the described heat pump water-heating machine, second normally closed solenoid valve, normally open solenoid valve, first check valve and second check valve, first normally closed solenoid valve is connected between flow controller and the air cooling agent heat exchanger, second normally closed solenoid valve is connected in the two ends of throttle pipe in parallel, after being connected in series, the normally open solenoid valve and first check valve be arranged in parallel at the be formed by connecting two ends of path of liquid refrigerant heat exchanger and first normally closed solenoid valve, one end of second check valve is communicated on the pipeline between the normally open solenoid valve and first check valve, the other end is communicated on the pipeline between throttle pipe and the frost removal, and first check valve all is connected with the output of normally open solenoid valve with the input that flows to of second check valve.
Described air cooling agent heat exchanger and frost removal are packaged together.
Described flow controller is an electric expansion valve.
Described throttle pipe is a capillary.
The utility model compared with prior art has the following advantages:
The utility model adopts one by normally open solenoid valve, first check valve, air cooling agent heat exchanger, the defroster duct that throttle pipe and frost removal form and one are by normally open solenoid valve, the hot-gas bypass pipeline that second check valve and frost removal form has replaced " exchanges " defroster duct that operation forms by condenser and evaporimeter in the traditional product, realize that heat pump water-heating machine does not need the four-way commutation when defrosting, solved in hot water machine owing to use the cross valve commutation can reduce system works efficient during system's defrosting, avoided in the liquid refrigerant heat exchanger may since the too low heat exchanger bursting by freezing that cause of the working medium temperature that flows through damage and the halfway problem that defrosts.The utility model is simple in structure, and cost is low, and defrosting effect is good, and process control is simple, system stability, reliable, the Energy Efficiency Ratio that significantly improves product.
Description of drawings
Accompanying drawing 1 is the basic principle figure of conventional heat pump hot water machine;
Accompanying drawing 2 is the structural representation of the utility model most preferred embodiment.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
According to shown in Figure 2, heat pump water-heating machine of the present utility model, comprise the compressor 1, liquid refrigerant heat exchanger 2, flow controller 3, air cooling agent heat exchanger 5-1, throttle pipe 7 and the gas-liquid separator 8 that connect into closed circuit in turn from beginning to end, this closed circuit is the fundamental circuit of ordinary hot pump hot water machine heating operation, realization with the HTHP refrigeration working medium of compressor 1 output to being subjected to heat space (material) heat release, the final refrigeration working medium of exporting low-temp low-pressure by gas-liquid separator is finished one and is heated circulation to compressor 1.The utility model is the weak point that overcomes traditional product, between described throttle pipe 7 and gas-liquid separator 8, be provided with frost removal 5-2, and, also be provided with first normally closed solenoid valve 4, second normally closed solenoid valve 6, normally open solenoid valve 9, first check valve 10 and second check valve 11 in the utility model.During this time, first normally closed solenoid valve 4 is connected between flow controller 3 and the air cooling agent heat exchanger 5-1, second normally closed solenoid valve 6 is connected in the two ends of throttle pipe 7 in parallel, after being connected in series, the normally open solenoid valve 9 and first check valve 10 be arranged in parallel at the be formed by connecting two ends of path of liquid refrigerant heat exchanger 2 and first normally closed solenoid valve 4, one end of second check valve 11 is communicated on the pipeline between the normally open solenoid valve 9 and first check valve 10, the other end is communicated on the pipeline between throttle pipe 7 and the frost removal 5-2, and first check valve 10 all is connected with the output of normally open solenoid valve 9 with the input that flows to of second check valve 11.At the same time, in the technical program, air cooling agent heat exchanger 5-1 and frost removal 5-2 are installed in the same packaging body 5, realize two mutual encapsulation, save installing space.In addition, in the manufacturing process of heat pump water-heating machine, flow controller 3 can adopt common device---electric expansion valve, and in like manner throttle pipe also can adopt capillary.
Operation principle of the present utility model is:
(1) system heats: first normally closed solenoid valve 4 and second normally closed solenoid valve, 6 no powers, be in conducting state, and normally open solenoid valve 9 also is a no power, is in off-state.Refrigeration working medium is from compressor 1 output, flow through liquid refrigerant heat exchanger 2, flow controller 3, first normally closed solenoid valve 4, air cooling agent heat exchanger 5-1, second normally closed solenoid valve 6, frost removal 5-2 to gas-liquid separator 8, the final refrigeration working medium of exporting low-temp low-pressures by gas-liquid separator 8 is finished the process of heating to compressor 1.
(2) defrost process: first normally closed solenoid valve 4 and 6 energisings of second normally closed solenoid valve, be in off-state, the normally open solenoid valve energising is in conducting state.At this moment, being connected to form pipeline by liquid refrigerant heat exchanger 2, flow controller 3 does not have refrigeration working medium to flow through owing to the disconnection of first normally closed solenoid valve 4, normally open solenoid valve 9 after from the refrigeration working medium of compressor 1 output from closure separately outputs to first check valve 10 and second check valve 11, simultaneously, because 6 energisings of second normally closed solenoid valve disconnect, the refrigeration working medium of exporting from air cooling agent heat exchanger 5-1 can only flow to throttle pipe 7.In this process, the flow through route of refrigeration working medium in defrost process is as follows: the refrigeration working medium by compressor 1 and normally open solenoid valve 9 outputs is divided into two-way, leading up to first check valve 10, air cooling agent heat exchanger 5-1, throttle pipe 7, frost removal 5-2 flows into gas-liquid separator 8, another road is pooled to gas-liquid separator 8 by second check valve 11, frost removal 5-2, unification is carried back compressor 1 by gas-liquid separator 8 with the refrigeration working medium of low-temp low-pressure then, finishes defrost process.
In a word, the utility model is by adopting a defroster duct and a hot-gas bypass pipeline to replace tradition " exchange " defroster duct that operation forms by condenser and evaporimeter in the product, realize that heat pump water-heating machine is removing Do not need the four-way commutation during frost, having overcome may be because the Temperature of Working that flows through be too low in the liquid refrigerant heat exchanger The problem that causes heat exchanger bursting by freezing to damage, defrosting effect is good, process control is simple so that the utlity model has, Can effectively guarantee system high efficiency and normal operation, the advantage that the product Energy Efficiency Ratio is higher.
Claims (4)
1. heat pump water-heating machine, comprise the compressor (1) that connects into closed circuit in turn from beginning to end, liquid refrigerant heat exchanger (2), flow controller (3), air cooling agent heat exchanger (5-1), throttle pipe (7) and gas-liquid separator (8), it is characterized in that: be provided with frost removal (5-2) between described throttle pipe (7) and the gas-liquid separator (8), also be provided with first normally closed solenoid valve (4) in the described heat pump water-heating machine, second normally closed solenoid valve (6), normally open solenoid valve (9), first check valve (10) and second check valve (11), first normally closed solenoid valve (4) is connected between flow controller (3) and the air cooling agent heat exchanger (5-1), second normally closed solenoid valve (6) is connected in the two ends of throttle pipe (7) in parallel, after being connected in series, normally open solenoid valve (9) and first check valve (10) be arranged in parallel at the be formed by connecting two ends of path of liquid refrigerant heat exchanger (2) and first normally closed solenoid valve (4), one end of second check valve (11) is communicated on the pipeline between normally open solenoid valve (9) and first check valve (10), the other end is communicated on the pipeline between throttle pipe (7) and the frost removal (5-2), and first check valve (10) all is connected with the output of normally open solenoid valve (9) with the input that flows to of second check valve (11).
2. heat pump water-heating machine according to claim 1 is characterized in that: described air cooling agent heat exchanger (5-1) is packaged together with frost removal (5-2).
3. heat pump water-heating machine according to claim 1 is characterized in that: described flow controller (3) is an electric expansion valve.
4. heat pump water-heating machine according to claim 1 is characterized in that: described throttle pipe (7) is a capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920055261U CN201377903Y (en) | 2009-04-19 | 2009-04-19 | Heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920055261U CN201377903Y (en) | 2009-04-19 | 2009-04-19 | Heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377903Y true CN201377903Y (en) | 2010-01-06 |
Family
ID=41518018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920055261U Expired - Fee Related CN201377903Y (en) | 2009-04-19 | 2009-04-19 | Heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377903Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234312A (en) * | 2013-04-11 | 2013-08-07 | 王子忠 | Frost-free third-generation (3G) air conditioner system |
| CN104896757A (en) * | 2015-06-17 | 2015-09-09 | 合肥美的暖通设备有限公司 | Water heater and control method thereof |
| CN107747789A (en) * | 2017-08-30 | 2018-03-02 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
-
2009
- 2009-04-19 CN CN200920055261U patent/CN201377903Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234312A (en) * | 2013-04-11 | 2013-08-07 | 王子忠 | Frost-free third-generation (3G) air conditioner system |
| CN103234312B (en) * | 2013-04-11 | 2018-02-27 | 王子忠 | Anti-freezing 3G air conditioner systems |
| CN104896757A (en) * | 2015-06-17 | 2015-09-09 | 合肥美的暖通设备有限公司 | Water heater and control method thereof |
| CN104896757B (en) * | 2015-06-17 | 2017-11-07 | 合肥美的暖通设备有限公司 | Hot water machine and its control method |
| CN107747789A (en) * | 2017-08-30 | 2018-03-02 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN107747789B (en) * | 2017-08-30 | 2019-11-05 | 青岛海尔空调器有限总公司 | The fault detection and processing method of air-conditioning and its supercooling tube group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20110419 |