Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double-temperature double-compressor water cooling unit and refrigerating control method thereof

A technology of dual compressors and water chillers, applied in the direction of compressors, compressors with cascading work, refrigerators, etc., can solve the problems of limited heat exchange effect of evaporators, complex structure, and inability to adjust, so as to achieve energy saving effect Significant, simple device structure, and the effect of reducing reheat loss

Pending Publication Date: 2017-05-31
ZHEJIANG LUTE ENERGY TECH
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above scheme meets the different requirements of multiple indoor units or heat exchange terminals in the same air conditioning system for evaporation temperature or condensation temperature, realizes the purpose of saving the initial investment of the air conditioning system and improving energy efficiency, but the structure of the scheme is relatively complicated. And it is impossible to adjust the ratio of medium-temperature water output to low-temperature water output according to the indoor high and low load conditions to effectively and quickly meet the load changes in functional areas; moreover, the heat exchange effect of the evaporator in the above scheme is limited, and the energy-saving effect needs to be further improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-temperature double-compressor water cooling unit and refrigerating control method thereof
  • Double-temperature double-compressor water cooling unit and refrigerating control method thereof
  • Double-temperature double-compressor water cooling unit and refrigerating control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1As shown, the dual-temperature dual-compressor water chiller of the present invention includes a unit housing 1 with an inner cavity, and the unit housing 1 is composed of a cooling housing 2 of a high-temperature shell-and-tube heat exchange device 11 and a low-temperature shell-and-tube heat exchange device The refrigerating shells 2 of 12 are butted with each other, and the unit shell 1 is provided with an insulation layer 17 on the outside of the circumference. The water outlet 111 communicates with the high-temperature shell-and-tube heat exchange device 11 in the casing 1 of the unit, and the low-temperature water outlet 121 communicates with the low-temperature shell-and-tube heat exchange device 12 in the unit. Between the shell-and-tube heat exchange devices 12, there is a switching structure that enables the high-temperature shell-and-tube heat exchange device 11 to communicate with the low-temperature shell-and-tube heat exchange device 12 and...

Embodiment 2

[0044] Such as image 3 As shown, this embodiment is similar to Embodiment 1, the difference is that the heat transfer tube bundle 23 in this embodiment is arranged in a transverse bend in the refrigeration housing 2, and the heat transfer tube bundle 23 includes a lateral extension 26 and an arc The curved portion 232 and the lateral extension portion 26 are arranged horizontally from top to bottom and parallel to the baffle 241 , and in this embodiment, the two sides of the baffle 241 are respectively fixed to the arc-shaped curved portion 232 and the refrigeration housing On the inner wall of 2, the baffle plate 241 from top to bottom is misplaced to guide the water source medium so that the water source medium flows from the cold water inlet 21 to the cold water outlet 22 along the heat transfer tube bundle, and in this embodiment, the cooling The flow direction of the agent is from top to bottom, that is, from the lateral extension closest to the cold water outlet 22 to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a double-temperature double-compressor water cooling unit and a refrigerating control method thereof and belongs to the technical field of air conditioner equipment. The double-temperature double-compressor water cooling unit comprises a unit shell provided with an inner cavity, the unit shell is provided with a high-temperature water return opening, a medium-temperature water feeding / discharging opening and a low-temperature water outlet, and the unit shell is internally provided with a high-temperature shell-tube pipe heat exchange device communicating with the high-temperature water return opening and a low-temperature shell-tube type heat exchange device communicating with the low-temperature water outlet; a switching structure is arranged between the high-temperature shell-tube pipe heat exchange device and the low-temperature shell-tube type heat exchange device, the high-temperature shell-tube pipe heat exchange device communicates with a high-temperature compression refrigeration loop located on the outer side of the unit shell in two directions, the low-temperature shell-tube type heat exchange device communicates with a low-temperature compression refrigeration loop located on the outer side of the unit shell in two directions, the low-temperature compression refrigeration loop and the high-temperature compression refrigeration loop are both connected with a control module, and the switching structure is connected with the control module. The double-temperature double-compressor water cooling unit has the advantages of being low in investment cost, high in heat exchange efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning equipment, and in particular relates to a dual-temperature dual-compressor water chiller and a refrigeration control method thereof. Background technique [0002] With the development of air-conditioning technology, there are both air-conditioning indoor units using refrigerant heat exchange and air-conditioning terminals using water heat exchange in an air-conditioning environment. For example, in the existing technology, "cold radiant ceiling + independent fresh air The air conditioning form of "system" has attracted more and more attention from the industry. This type of system uses cold water at about 18°C ​​in the cold radiant ceiling to take away the sensible heat and humidity load in the room, and uses cold water at about 7°C in the independent fresh air system to take away the total heat load and indoor latent heat load of the fresh air, which can not only reduce the air condition...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F25B7/00F25B41/04F25B49/02F25B41/20
CPCF25B7/00F25B49/02F25B2500/09F25B41/20
Inventor 夏惊涛曾茜吴宏伟
Owner ZHEJIANG LUTE ENERGY TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More