CN202229399U - Direct-heating heat pump water heater unit - Google Patents
Direct-heating heat pump water heater unit Download PDFInfo
- Publication number
- CN202229399U CN202229399U CN2011201740734U CN201120174073U CN202229399U CN 202229399 U CN202229399 U CN 202229399U CN 2011201740734 U CN2011201740734 U CN 2011201740734U CN 201120174073 U CN201120174073 U CN 201120174073U CN 202229399 U CN202229399 U CN 202229399U
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Abstract
The utility model belongs to the technical field of heat exchange, and relates to a direct-heating heat pump water heater unit, which comprises two condensers, wherein the refrigeration sides and the water line sides of the condensers are connected in series respectively; further, a bypass pipe controlled by a valve is arranged between a cold water inlet pipe and a hot water outlet pipe on the water line side; a warm water inlet pipe is led out from the series pipeline between the two condensers; when the valve is closed, a series flow passage is formed on the water line side that the cold water inlet pipe passes through the two condensers successively to reach the hot water outlet pipe; when the valve is opened, parallel flow passages are formed on the water line side that the warm water inlet pipe passes through the two condensers simultaneously, with one line directly connected to the hot water outlet pipe and the other line passing through the bypass pipe to be connected to the hot water outlet pipe. By adopting the direct-heating heat pump water heater unit, the energy efficiency ratio of circulation operation of the unit can be increased without increasing the power of the circulating water pump.
Description
Technical field
The utility model relates to a kind of hot water unit, and especially a kind of directly-heated type heat-pump hot-water unit belongs to technical field of heat exchange.
Background technology
Understand according to the applicant, existing directly-heated heat-pump hot-water unit generally adopts a condenser to carry out heat exchange.Usually the design parameter of this condenser is confirmed according to best heat exchange efficiency under the directly-heated operational mode, therefore when directly-heated move discharge less, when flow velocity is higher, can obtain higher Energy Efficiency Ratio, heat is also bigger.But, when water tank heat preserving needs circular flow,, can cause Water in Condenser duct resistance bigger because circulating water flow is bigger, need to increase circulation pump lift and input power, thereby reduced unit eer.
The utility model content
The purpose of the utility model is: to the problem that above-mentioned prior art exists, propose a kind of directly-heated type heat-pump hot-water unit that when circular flow, can reduce the water route collateral resistance, increase discharge, thereby improve the Energy Efficiency Ratio of hot water unit circular flow.
In order to reach above purpose, the directly-heated type heat-pump hot-water unit of the utility model contains two condensers, and the refrigeration side and the water route side of said condenser are connected in series respectively; In addition, cross-over connection has the bypass pipe of valve control between the cold water inlet pipe of said water route side and the hot water out pipe; Also draw the warm water inlet pipe in the series pipe between said two condensers; When said valve closing, the water route side constitutes by the cold water inlet pipe earlier after behind two condensers, to the series operation runner of hot water out pipe; When said valve opening, the water route side constitutes by the warm water inlet pipe simultaneously behind two condensers, and one the tunnel directly compiles the parallel running runner of hot water out pipe through bypass pipe to hot water out pipe, another road.
Like this, when unit directly-heated operation, discharge hour, adopt the mode of water route series connection heating, the flow velocity of water is higher in the condenser water route, the water route side coefficient of heat transfer is big, so unit eer is higher; And when unit circular flow, discharge are big, owing to switch to the water route parallel way, so the flow velocity of water is unlikely to obvious increase in the condenser water route, thus avoided the obvious increase of Water in Condenser trackside resistance.This shows, behind employing the utility model, need not to increase water circulating pump power, increased the Energy Efficiency Ratio of unit circular flow.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment one.
The specific embodiment
Embodiment one
The directly-heated type heat-pump hot-water unit basic structure of present embodiment is as shown in Figure 1, and the heat-pump hot-water unit has two condensers, is respectively condenser 6 and 7, and condenser is respectively the mode of being connected in series in refrigeration side and water route side.The water route side has three interfaces that connect cold water inlet pipe 3, warm water inlet pipe 2 and hot water out pipe 1 respectively: cooling water inlet C-IN, warm water import W-IN and hot water outlet H-OUT, cross-over connection has the bypass pipe 8 of valve 5 controls between cold water inlet pipe and the hot water out pipe.The warm water inlet pipe is by drawing in the series pipe between two condensers.Warm water inlet pipe 2 is equipped with the check valve of anti-backflow.The cold water inlet pipe is equipped with electric control valve 4.When valve 5 was closed, the water route side constituted by the cold water inlet pipe earlier after behind two condensers, to the series operation runner of hot water out pipe.When valve 5 was opened, the water route side constituted by the warm water inlet pipe simultaneously behind two condensers, and one the tunnel directly compiles the parallel running runner of hot water out pipe through bypass pipe to hot water out pipe, another road.
Particularly, when the unit directly-heated moved, valve 5 was closed, and cold water at first gets into from the unit cooling water inlet, through behind the electric control valve 4, at first got into condenser 7 heat exchange, got into condenser 6 heat exchange then, passed through outlet pipe 1 at last, flowed out from the unit hot water outlet.When unit circular flow, valve 5 is opened, and electric control valve 4 cuts out; Warm water gets into the import of unit warm water; Behind warm water intake pipe 2, divide two-way to get into condenser 6 respectively and carry out heat exchange with condenser 7, the water of heating flows out from two each and every one condensers respectively; Be pooled to outlet pipe 1, flow out from hot water outlet at last.
The experiment proof; The directly-heated type heat-pump hot-water unit of present embodiment has following advantage: when unit directly-heated operation, discharge hour, adopt the mode of water route series connection heating, the flow velocity of water is higher in the condenser water route; The water route side coefficient of heat transfer is big, so unit eer is higher; And when unit circular flow, discharge are big, owing to switch to the water route parallel way, so the flow velocity of water is unlikely to obvious increase in the condenser water route, thus avoided the obvious increase of Water in Condenser trackside resistance.This shows, behind employing the utility model, need not to increase water circulating pump power, increased the Energy Efficiency Ratio of unit circular flow.
Claims (2)
1. a directly-heated type heat-pump hot-water unit contains two condensers, and the refrigeration side and the water route side of said condenser are connected in series respectively; It is characterized in that: cross-over connection has the bypass pipe of valve control between the cold water inlet pipe of said water route side and the hot water out pipe; Also draw the warm water inlet pipe in the series pipe between said two condensers; When said valve closing, the water route side constitutes by the cold water inlet pipe earlier after behind two condensers, to the series operation runner of hot water out pipe; When said valve opening, the water route side constitutes by the warm water inlet pipe simultaneously behind two condensers, and one the tunnel directly compiles the parallel running runner of hot water out pipe through bypass pipe to hot water out pipe, another road.
2. directly-heated type heat-pump hot-water unit according to claim 1 is characterized in that: said warm water inlet pipe is equipped with the check valve of anti-backflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201740734U CN202229399U (en) | 2011-05-27 | 2011-05-27 | Direct-heating heat pump water heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201740734U CN202229399U (en) | 2011-05-27 | 2011-05-27 | Direct-heating heat pump water heater unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229399U true CN202229399U (en) | 2012-05-23 |
Family
ID=46079984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201740734U Expired - Fee Related CN202229399U (en) | 2011-05-27 | 2011-05-27 | Direct-heating heat pump water heater unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440512A (en) * | 2016-10-08 | 2017-02-22 | 珠海格力电器股份有限公司 | Heat pump hot water system and control method thereof |
| CN107388634A (en) * | 2017-08-25 | 2017-11-24 | 广东美的暖通设备有限公司 | Air source heat pump and air source heat pump control method |
-
2011
- 2011-05-27 CN CN2011201740734U patent/CN202229399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440512A (en) * | 2016-10-08 | 2017-02-22 | 珠海格力电器股份有限公司 | Heat pump hot water system and control method thereof |
| CN107388634A (en) * | 2017-08-25 | 2017-11-24 | 广东美的暖通设备有限公司 | Air source heat pump and air source heat pump control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20170527 |