CN201764836U

CN201764836U - Heat recycle device of waste gas

Info

Publication number: CN201764836U
Application number: CN2010205133628U
Authority: CN
Inventors: 付长智; 付宇轩
Original assignee: TANGSHAN CHANGZHI AGRICULTURAL TOOLS DESIGNING AND MANUFACTURING Co Ltd
Current assignee: TANGSHAN CHANGZHI AGRICULTURAL TOOLS DESIGNING AND MANUFACTURING Co Ltd
Priority date: 2010-09-02
Filing date: 2010-09-02
Publication date: 2011-03-16
Anticipated expiration: 2020-09-02

Abstract

A heat recycle device of waste gas comprises a high temperature working room, a low temperature working room, a gas conveying channel, a temperature control unit, and a mixing room, wherein two ends of the gas conveying channel are respectively communicated with a waste gas outlet of the high temperature working room and the gas inlet of the low temperature working room; the gas conveying channel is provided with the mixing room; a circulating fan is disposed in the mixing room; the waste gas outlet of the high temperature working room is communicated with an air returning flue, and the other end of the air returning flue is communicated with the mixing room; the end part of the air returning flue is communicated with a cold air fill pipe; the end parts of the air returning flue and the cold air fill pipe are respectively provided with an air returning limit valve and a cold air limit valve; a thermocouple is disposed in the high temperature working room; the thermocouple is connected with the temperature control unit which is connected with the air returning limit valve and the cold air limit valve. The heat recycle device of waste gas of the utility model is simply structured and conveniently manufactured; the temperature difference and measurement control capacity of temperature is exact; heat can be cycled and reused between equipments with different temperature differences, so that plurality of temperature difference equipments perform continuous heat recycling and transforming from high temperature to low temperature; the application range is wide.

Description

Useless flue gas heat energy cycling and reutilization device

Technical field

The utility model relates to the device that a kind of gas circulation is utilized, the useless flue gas heat energy cycling and reutilization device between particularly a kind of equipment that is applied to have temperature difference.

Background technology

At present, can relate to the heating link in the hot-working field, and the useless flue gas after the heating contains a large amount of heat energy, often all directly dischargings make that a large amount of energy can not get well utilizing again, serious waste, and other heating links also need separate operaton.Process with the production steel shovel is an example, in the production process of steel shovel, it will carry out fine finishining through the different operating room of a plurality of temperature, as reversing chamber, plastic-blasting curing room, paint hothouse etc., each operating room requires temperature all different, and traditional processing method is that each operating room is all carried out independent heating, and each operating room all will directly discharge the flue gas that gives up, cause great pollution to environment, also can cause bigger energy waste.Though each enterprise also all is a device of having used various heat energy to utilize again, but those devices or too simple, just with heat energy from an operating room or equipment is delivered directly to another operating room or equipment uses, the temperature difference of temperature, measure control ability, effective rate of utilization is low; Be exactly to introduce and complex apparatus, spend a large amount of funds, carry out energy recovery between the fixing equipment but also just be limited to, the scope of application is little.

Summary of the invention

The utility model is at the many deficiencies that exist in the prior art, and a kind of simple and practical, temperature precise control is provided, widely applicable useless flue gas heat energy cycling and reutilization device.

Realize that the technical scheme that above-mentioned purpose adopts is: a kind of useless flue gas heat energy cycling and reutilization device, comprise hot operation chamber, low-temperature working chamber, tobacco transmission pipe, temperature controller, mixing chamber and circulating fan, the two ends of described tobacco transmission pipe are communicated with the useless exhanst gas outlet of hot operation chamber and the smoke inlet of low-temperature working chamber respectively, and mixing chamber and circulating fan are housed on this tobacco transmission pipe; The useless exhanst gas outlet of described hot operation chamber is communicated with the return air flue, and the other end of this return air flue is communicated with mixing chamber; The end of described return air flue also is communicated with cold wind secondary air channel road, and the end in return air flue and cold wind secondary air channel road is respectively equipped with return air limit valve and cold wind limit valve; The indoor thermocouple that is equipped with of described low-temperature working, this thermocouple is connected with temperature controller, and described temperature controller also is connected with the cold wind limit valve with the return air limit valve respectively.

Compared with prior art, the utility model is simple in structure, and is easy to make and manufacturing cost is low, and the temperature difference of temperature and measure control ability are accurate; This device can carry out heat energy recycling between different temperature difference equipment, make a plurality of temperature difference equipment be that temperature is from high to low, successional heat energy cyclic transformation, and is widely applicable.

Description of drawings

Fig. 1 is a user mode schematic diagram of the present utility model.

Among the figure: return air flue 1, temperature controller 2, return air limit valve 3, cold wind limit valve 4, cold wind secondary air channel road 5, useless exhanst gas outlet 6, heating furnace 7, tobacco transmission pipe 8, mixing chamber 9, circulating fan 10, smoke inlet 11, reversing chamber 12, thermocouple 13, standby combustor 14, plastic-blasting curing room 15.

The specific embodiment

The utility model is further introduced below in conjunction with drawings and Examples.

Referring to accompanying drawing 1, present embodiment is an example with the useless flue gas heat energy recycle of steel shovel process of manufacture.High and low temperature operating room described in the present embodiment and high and low temperature equipment are equal to.

This useless flue gas heat energy cycling and reutilization device, comprise hot operation chamber, low-temperature working chamber, tobacco transmission pipe 8, temperature controller 2, mixing chamber 9 and circulating fan 10, the two ends of tobacco transmission pipe 8 are communicated with the useless exhanst gas outlet 6 of hot operation chamber and the smoke inlet 11 of low-temperature working chamber respectively, and mixing chamber 9 and circulating fan 10 are housed on this tobacco transmission pipe 8.The useless exhanst gas outlet of hot operation chamber is communicated with return air flue 1, and the other end of this return air mouth 1 is communicated with mixing chamber 9.The end of return air flue 1 also is communicated with cold wind secondary air channel road 5, and the end in return air flue 1 and cold wind secondary air channel road 5 is respectively equipped with return air limit valve 3 and cold wind limit valve 4, the indoor thermocouple 13 that is equipped with of low-temperature working, this thermocouple 13 is connected with temperature controller 2, and described temperature controller 2 also is connected with cold wind limit valve 4 with return air limit valve 3 respectively.

Return air limit valve 3 and the 4 interlock controls of cold wind limit valve, related each other.Thermocouple 13 in the operating room is monitored the temperature in the operating room at any time, when the indoor temperature of low-temperature working reaches temperature required, temperature controller 2 control return air limit valves 3 turn down air quantity, and cold wind limit valve 4 corresponding relieving air quantity, cold wind enters mixing chamber 9 by cold wind secondary air channel road 5, mix the back with hot blast and return air and under the effect of circulating fan 10, send in the reversing chamber 12, to guarantee the temperature stabilization in the reversing chamber 12.Temperature controller 2 can not only be controlled the switching of return air limit valve 3 and cold wind limit valve 4, can also the related control of momentum.

Standby combustor 14 is equipped with in the bottom of mixing chamber 9.When not working in the hot operation chamber, and during the work of low-temperature working chamber, can provide heat, avoid the delay of work by this standby combustor 14.Present embodiment gathers, the mixing chamber bottom of the EGR between heating furnace 7 and reversing chamber 12 does not have standby combustor 14, and standby combustor 14 really is equipped with in the mixing chamber of the EGR between reversing chamber 12 and the plastic-blasting curing room 15 bottom, its former because: when reversing chamber 12 is idle, plastic-blasting curing room 15 also might be worked, so need standby combustor 14 to come for providing heat energy in the plastic-blasting curing room 15.

Should useless flue gas recirculation re-use device can install between any two equipment with temperature difference.During multistage use, to between immediate two equipment of temperature, install this EGR additional, the temperature that is the useless flue gas of high-temperature service eliminating will be higher than the required indoor temperature in low-temperature working chamber, so just can reach the purpose of best useless flue gas heat energy cycling and reutilization, when Cryo Equipment is not worked, the exhaust outlet that can discharge useless flue gas should be installed on high-temperature service.

Two cycling and reutilization devices are arranged in the present embodiment, be contained in respectively between three operating rooms with temperature difference.Wherein in the circulation of phase I, hot operation chamber, low-temperature working chamber are respectively heating furnace 7 and reversing chamber 12, and the temperature of the useless flue gas that heating furnace 7 is discharged is generally more than 700 ℃, and reversing chamber 12 temperature required be about 320 degree; In second cycle stage, hot operation chamber, low-temperature working chamber are respectively reversing chamber 12 and plastic-blasting curing room 15, wherein temperature required being generally about 200 degree in the plastic-blasting curing room 15.Be generally more than 100 degree from the temperature of these plastic-blasting curing room 15 interior useless flue gases of discharging, can also supply with the lower equipment of oven dry paint and other temperature requirements or operating room's use.

Claims

1. useless flue gas heat energy cycling and reutilization device, comprise hot operation chamber, low-temperature working chamber, tobacco transmission pipe, temperature controller and mixing chamber, it is characterized in that, the two ends of described tobacco transmission pipe are communicated with the useless exhanst gas outlet of hot operation chamber and the smoke inlet of low-temperature working chamber respectively, on this tobacco transmission pipe mixing chamber is housed, circulating fan is housed in the mixing chamber; The useless exhanst gas outlet of described hot operation chamber is communicated with the return air flue, and the other end of this return air flue is communicated with mixing chamber; The end of described return air flue also is communicated with cold wind secondary air channel road, and the end in return air flue and cold wind secondary air channel road is respectively equipped with return air limit valve and cold wind limit valve; The indoor thermocouple that is equipped with of described hot operation, this thermocouple is connected with temperature controller, and described temperature controller also is connected with the cold wind limit valve with the return air limit valve respectively.

2. useless flue gas heat energy cycling and reutilization device according to claim 1 is characterized in that, described return air limit valve and cold wind limit valve interlock control.

3. useless flue gas heat energy cycling and reutilization device according to claim 1 is characterized in that standby combustor is equipped with in the bottom of described mixing chamber.

4. according to any one described useless flue gas heat energy cycling and reutilization device among the claim 1-3, it is characterized in that described useless flue gas recirculation re-use device is installed between any two equipment with temperature difference.