Multi-layer belt type drying system based on two-stage heat pump parallel connection
A drying system and multi-layer belt technology, applied in heat pumps, drying gas arrangement, drying, etc., can solve the problems of large return air temperature and humidity difference, difficult to meet the requirements, etc., and achieve the effect of increasing the supply air temperature
Active Publication Date: 2018-02-13
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to overcome the problem that the existing multi-layer belt drying system is difficult to meet the requirements when the temperature and humidity difference between the supply and return air is large, the present invention provides a multi-layer belt drying system based on parallel connection of two-stage heat pumps
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0033] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more; the meaning of "several" is one or more; the terms "upper", "lower" and "left" , "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not b...
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
Login to View More Abstract
The invention provides a multi-layer belt type drying system based on two-stage heat pump parallel connection. The multi-layer belt type drying system comprises a drying chamber and a heat pump circulating subsystem. Air inlets are formed in the bottom of the drying chamber, and air outlets are formed in the top of the drying chamber. Multiple layers of conveying net belts are located in the drying chamber. The heat pump circulating subsystem comprises multiple circulating pipelines and multiple heat pump units connected in parallel. Any heat pump unit comprises an evaporator, a first-stage compressor, a liquid storage tank, a second-stage compressor, a condenser, a second-stage throttle valve and a first-stage throttle valve, wherein an independent circulating loop is formed by the evaporator, the first-stage compressor, the liquid storage tank, the second-stage compressor, the condenser, the second-stage throttle valve and the first-stage throttle valve. The evaporator and the condenser of any heat pump unit are put in any circulating pipeline. The two ends of each circulating pipeline are connected with the corresponding air inlet and the corresponding air outlet correspondingly. According to the multi-layer belt type drying system based on two-stage heat pump parallel connection, the heat pump circulating subsystem with the multiple heat pump units connected in parallel isadopted, air is subjected to joint cooling and dehumidification and joint heating, and the problem that when the air supply and return temperature and humidity difference is large, the multi-layer belt type drying system hardly meets the requirements is solved.
Description
technical field [0001] The invention relates to the technical field of drying, and more specifically relates to a multi-layer belt drying system based on parallel connection of two-stage heat pumps. Background technique [0002] At present, the multi-layer belt drying system is widely used in industry. The multi-layer belt drying system has the advantages of fast drying speed, less land occupation, and simple structure. It is used for drying materials such as flakes, strips, and granules with good air permeability. It is especially suitable for drying heat-sensitive materials with high efficiency. [0003] The heating and dehumidification system of the existing multi-layer belt drying system usually adopts heat pump system, heater and so on. Among them, the heat pump system generally adopts a single-stage heat pump system. The performance of a single-stage heat pump system is greatly affected by environmental factors such as temperature and humidity, especially in a low-t...
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
Login to View More IPC IPC(8): F26B21/00F25B30/02F25B49/02
CPCF25B30/02F25B49/02F26B21/001
Inventor 苑亚杨鲁伟张振涛魏娟肖波董鹏游韶玮毛祥谢诚李博张冲李伟钊
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI