Heat pump system utilizing latent heat of solidification

Abstract

The invention belongs to the technical field of energy and discloses a heat pump system utilizing latent heat of solidification. The heat pump system utilizing latent heat of solidification aims at effectively utilizing the latent heat of solidification of water contained in a water source and reducing water consumption of a system to the greatest extent, and the problem of water shortage is further solved by additionally arranging a cooling tower to carry out ice melting under the specific temperature condition. The heat pump system utilizing latent heat of solidification is composed of a heat pump unit, a heat exchange device, a cyclone sand remover and an ejector, and the heat pump unit, the heat exchange device, the cyclone sand remover and the ejector are connected in a communicating mode through a tail end water supply pipe, a tail end water return pipe, a medium water supply pipe, a medium water return pipe, a water source water supply pipe, a water source water return pipe, a water source drainage pipe and a water source water inlet pipe. By utilizing the character that heat of solidification is released when water becomes ice, the inner wall of the heat exchanger is frozen through a low-temperature heat exchange medium, meanwhile, the inner wall of the heat exchanger is deiced through the impact and collision effects of a sand and water mixture, operation is carried out in cycle, and heat is released ceaselessly. The heat pump system utilizing latent heat of solidification is suitable for a water source heat pump system.

Description

technical field [0001] The invention relates to a heat pump system utilizing solidification latent heat, belonging to the technical field of energy. Background technique [0002] The use of heat pump technology to extract low-grade cold heat from water sources for heating and cooling of buildings has important energy-saving emission reduction and economic value. Water resources are very scarce in some areas of our country, and even areas with abundant water resources are unevenly distributed. Conventional water source heat pump systems extract sensible heat from water, but in winter when the water temperature is close to 0°C, there is no room for heat extraction. Compared with the limited sensible heat, there is also a huge latent heat of solidification in the water source. The full development and utilization of the latent heat of solidification in the water source is of great significance to the entire water source heat pump industry. [0003] When the latent heat of so...

AI Technical Summary

Problems solved by technology

[0005] In addition, this field has been in the stage of theoretical research, and there are few devices and patents involved, and none of them have been practically applied.

For example, the inventor previously invented the patent: the patent number is "ZL200610009740.7", and the patent name is "Utilization of solidification heat and anti-pollution device for surface water source heat pump system". The main problem of this patent is the reliability of screw drive and deicing problem, and the cost is high; the patent number is "ZL200610009617.5", and the patent name is "Coagulation latent heat heat pump for defrosting by using sensible heat of low-level heat source water supply". The main problem of this patent is to use water supply for defrosting. In essence, it mainly uses the sensible heat of water, and it is only suitable for small systems; the patent application number is "ZL200610009616.0", and the patent name is "Collection device for cold water solidification heat". This patent uses the auger scraper to remove ice. It is also a mechanical problem, with a large space and high cost. In addition, the inner wall of the heat exchange tube cannot be guaranteed to be uniform, and there is a problem that the auger is stuck.

In addition, there are other processes such as wall elastic ice peeling and heat insulation, which lack practicality.

Images