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A heat pump tail heat recovery countercurrent dryer

A tail heat recovery and dryer technology, applied in dryers, drying, heating devices, etc., can solve problems such as personnel and equipment safety accidents, strong vibration, etc., and achieve extended service life, high strength, and reliable use. Effect

Active Publication Date: 2017-11-17
GUANGDONG NEW ENERGY TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once part of the hardened dust is shaken off, it will immediately leave the dynamic rotation balance of the induced draft fan, and then generate strong vibration, which may cause serious personnel and equipment safety accidents

Method used

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  • A heat pump tail heat recovery countercurrent dryer
  • A heat pump tail heat recovery countercurrent dryer
  • A heat pump tail heat recovery countercurrent dryer

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0030] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0031] Such as figure 1 , figure 2 , image 3 and Figure 4 The shown heat pump tail heat recovery countercurrent dryer includes a dryer 11 and an induced draft fan A. The two ends of the dryer 11 are respectively provided with an exhaust hood 6 and an air intake hood 12. The exhaust hood 6 is connected to the induced draft fan A, and the induced draft fan A is emptied after being connected to the evaporator 22 of the heat pump system through the cyclone dust collector 21; the evaporator 22 of the heat pump system is connected to the main engine 25 through the refrigerant pipe 24, and the main engine 25 is connected to the condenser 26 through the refrigerant pipe 24; the air outlet end of the blower 27 is passed through the condenser 26 is connected to the air inlet cover 12; the induced draft fan includes a fan impeller 41 and a casing 45, and the fan impeller 41 ...

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Abstract

The invention discloses a heat pump type tail heat recovery counter flow dryer. A draught hood of a dryer body is connected with a draught fan. The draught fan is connected with an evaporator of a heat pump system through a cyclone dust collector and then emptied. The evaporator of the heat pump system is connected with a host machine through a coolant pipe. The host machine is connected with a condenser through a coolant pipe. The air outlet end of an air blower is connected with an air intake hood through the condenser. An impeller of the draught fan is provided with blades which are in a hollow inverted water drop shape, and a back plate is of a dish-shaped structure. The contour line of the draught fan is an involute. The dryer is provided with the draught fan, a heat exchanger and closed conical hoppers arranged below a sieve plate steel strip, and axial-flow fans are arranged in the conical hoppers, so that through type counter flow low-temperature drying of materials is achieved, dust on the impeller of the draught fan is cleaned away in real time, the strength of the impeller of the draught fan is improved, stability is enhanced, safety accidents caused by dust accumulation are effectively eradicated, and the application prospects are wide.

Description

technical field [0001] The invention relates to a drying machine, in particular to a heat pump tail heat recovery countercurrent drying machine in which a fan does not accumulate dust. Background technique [0002] People generally refer to drying with a drying temperature below 60 degrees Celsius as low-temperature drying. Low-temperature drying is widely used in the drying of heat-sensitive materials such as crop seeds, Chinese medicinal materials, and biological products. Due to its mature technology, strong adaptability, low operating cost and high reliability, hot air dryer is still one of the first choice equipment for low temperature drying. Low-temperature drying is less easy to recover tail heat due to the lower exhaust temperature. If the penetration and countercurrent drying of materials can be realized in the hot-air low-temperature drying process, and the tail heat can be effectively recovered, it will be of great significance for improving drying efficiency an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B21/00F26B23/00
CPCY02P70/10
Inventor 赵密升
Owner GUANGDONG NEW ENERGY TECH DEV
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