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Combined type heating drying system and method

A technology for heating drying and drying ovens, which is applied in the fields of radiation heating, absorption heat pump, combustion, heat setting machine, and drying, and can solve the problems of low energy utilization efficiency

Active Publication Date: 2020-06-05
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-efficiency combined heating and drying system and method to overcome the shortage of low energy utilization efficiency of the current heating and drying system using natural gas as energy

Method used

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  • Combined type heating drying system and method
  • Combined type heating drying system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Embodiment 1, radiant tube-absorption heat pump combined heating and drying system, such as figure 1 As shown, it includes combustion chamber 1, distribution box 2, radiant tube 3, gas collection box 5, static pressure box one 6, static pressure box two 7, static pressure box three 19, drying box 21, condenser 23, generator 24 , Absorber 26 and Evaporator 27.

[0078] A chain plate 22 is horizontally arranged in the drying box 21, and the chain plate 22 divides the inner cavity of the drying box 21 into an upper part and a lower part.

[0079] The combustion chamber 1 is connected to one end of the radiant tube 3 through the distribution box 2, the other end of the radiant tube 3 is connected to the gas collecting box 5, and the gas collecting box 5 is connected to the static pressure box one 6; the static pressure box one 6 passes through the generator 24 and The blower fan 12 is connected with the static pressure box three 19 behind.

[0080] The distribution box 2 ...

Embodiment 2

[0091] Embodiment 2, heat pipe-radiant pipe combined heating and drying system, such as Figure 6 As shown, the condenser 23, the generator 24, the absorber 26 and the evaporator 27 in Embodiment 1 are canceled, and the heat pipe heat exchanger is added. The condensation section 11 of the heater, the rest are equal to embodiment 1.

[0092] The first plenum 6 is connected to the inlet of the evaporating section 10 of the heat pipe heat exchanger, and the outlet of the evaporating section 10 is connected to the third 19 of the plenum through the fan 12;

[0093] After passing through the filter 14, the plenum four 141 is connected to the inlet of the condensation section 11 of the heat pipe heat exchanger through the fan 13, and the outlet of the condensation section 11 of the heat pipe heat exchanger is connected to the second 7 of the static pressure box.

[0094] The method of using the heat pipe-radiant tube combined heating and drying system is as follows:

[0095] The h...

Embodiment 3

[0097] Embodiment 3, radiant tube-absorption heat pump-convection coil combined heating and drying system, such as Figure 8 As shown, the static pressure tank 2 7 in the embodiment 1 is canceled, and the convection coil 42 is added, and the rest is equal to the embodiment 1.

[0098] The static pressure box four 141 is connected with the evaporator 27 through the filter 14 and the fan 13 .

[0099] The convection coil 42 is arranged on the upper part of the inner cavity of the drying box 21 , the lower part of the inner cavity of the drying box 21 is provided with a filter screen 43 , and a circulating fan 34 is arranged in a gap between the chain plate 22 and the inner side wall of the drying box 21 .

[0100] Radiant tube-absorption heat pump-convection coil combined heating and drying method:

[0101] The air is pressurized by the circulating fan 34 and sent to the top of the convection coil 42, and then flows down through the outer wall of the convection coil 42, and aft...

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Abstract

The invention provides a radiant tube-absorbing type heat pump combined heating drying system. The system comprises a combustion chamber, a distribution box, a radiant tube, a gas collecting box, a first still pressure box, a second still pressure box, a third still pressure box, a drying box, a condenser, a generator, an absorber and an evaporator. A chain plate is horizontally arranged in the drying box. The inner cavity of the drying box is partitioned into an upper portion and a lower portion through the chain plate. The combustion chamber is connected with one end of the radiant tube through the distribution box. The other end of the radiant tube is connected with the gas collecting box. The gas collecting box is connected with the first still pressure box. The first still pressure box is connected with the third still pressure box after passing through the generator and a fan. The invention further provides a radiant tube-absorbing type heat pump combined heating drying method. Fuel is combusted in the combustion chamber at first, generated high-temperature flue gas enters the radiant tube to heat materials in a radiation mode. According to the heating drying system and method, temperature joint use of heat energy is achieved, and the method is a novel energy graded use mode, is efficient and saves energy.

Description

technical field [0001] The invention relates to the technical fields of combustion, radiation heating, absorption heat pump, heat setting machine, drying, etc., and specifically relates to a combined high-efficiency heating system and method. Background technique [0002] Many areas in the production process of industry and agriculture involve the heating, drying and heat treatment of materials, such as the treatment of textiles by heat setting machines in the textile printing and dyeing industry, and the drying of materials such as grains, tea, and Chinese medicinal materials in agricultural production. All of the above processes consume heat energy. Natural gas is a clean fossil fuel, easy to use and easy to realize automatic control, so the heating and drying technology using natural gas as energy has been widely used. [0003] In many industrial and agricultural productions, the operating temperature of heating and drying processes is not high, mostly below 300°C, so th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/28F26B23/02F26B23/00F26B21/00F26B25/00F25B15/02F25B27/02
CPCF25B15/025F25B27/02F26B3/283F26B21/001F26B23/004F26B23/02F26B25/005Y02B30/625Y02A30/274
Inventor 张光玉李锦航舒志成
Owner ZHEJIANG SCI-TECH UNIV