Heat pump water heater with low temeprature environment fast start device

A heat pump water heater, quick start technology

Inactive Publication Date: 2007-11-14
SHANGHAI JINYUAN NEW ENERGY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a heat pump water heater with a low-temperature environment quick start device, which solves the problem that when the existing heat pump water heater is started at low temperatur

Method used

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  • Heat pump water heater with low temeprature environment fast start device

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing and embodiment the present invention will be further described

[0010] A heat pump water heater (suitable for heat pump water heaters using R22 and R417a working fluids) with a quick start-up device in a low temperature environment, a compressor 1, a condenser 3, a liquid receiver 4, and a throttle valve 5 are sequentially connected in a circuit by pipelines , An evaporator 6, a gas-liquid separator 7, a pipeline is provided between the compressor 1 and the evaporator 6, and a hot gas bypass valve 2 is provided on the pipeline. The inlet of the hot gas bypass valve 2 is connected to the exhaust port of the compressor 1, the outlet of the bypass valve 2 is connected to the inlet of the evaporator 6, and the back pressure pipe of the bypass valve 2 is connected to the inlet of the compressor 1. The main function of the back pressure pipe is to detect the suction pressure of compressor 1. When the suction pressure of compress...

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Abstract

A heat pump water heater with quick enable device under the low temperature comprise blower, condenser, reservoir, flow regulating valve, vapor device, gas-liquid separator, all of which are connected into circuit through pipeline. There is pipeline between condenser and vapor device and hot-gas by-pass valve on the pipeline. The reservoir can be omitted when the heating amount is less than ten KW in the system of the heat pump water heater. When the system is enabled under the low temperature, if system is less than set value, the hot-gas by-pass valve open and section of gas in the air exhaust opening of condenser go through directly vapor device under expanded structure. Then the air-out pressure is built quickly and the system achieves normal work condition. The good result of this invention is that the system can be enabled quickly under low temperature and so on.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to a heat pump water heater with a low-temperature environment quick start device. Background technique [0002] Common heat pump water heater components are: compressor, condenser, liquid receiver, throttle valve, evaporator, gas-liquid separator. The high-temperature and high-pressure refrigerant is discharged from the compressor into the condenser, and the heat is released to heat the circulating hot water. The refrigerant changes from a gaseous state to a liquid state, and becomes a low-pressure and low-temperature liquid after being throttled by the liquid receiver / throttle valve and enters the evaporator to absorb the environment. Heat, the refrigerant becomes low-pressure steam, and then enters the compressor to complete a heating cycle. Since the operating range of the heat pump water heater is required to be -15°C~53°C, when the ordinary heat pump water hea...

Claims

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Application Information

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IPC IPC(8): F24H4/04
Inventor 曹锋刑子文崔容强朱永桃孙建华张明安
Owner SHANGHAI JINYUAN NEW ENERGY SCI & TECH
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