CN216282958U

CN216282958U - Waste heat conversion device of setting machine

Info

Publication number: CN216282958U
Application number: CN202122379127.7U
Authority: CN
Inventors: 郑时红; 赵云鹏; 茅新波
Original assignee: Zhejiang Youjia Energy Saving Technology Co ltd
Current assignee: Zhejiang Youjia Energy Saving Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-12
Anticipated expiration: 2031-09-29

Abstract

The application relates to a waste heat conversion device of a setting machine, which comprises an inlet end of a heat exchange medium, an outlet end of the heat exchange medium and a heat exchanger, wherein the heat exchanger is respectively communicated with the inlet end and the outlet end and is hermetically connected with the inlet end and the outlet end; still include the new trend siphunculus, the both ends of new trend siphunculus are equipped with new trend import and new trend export respectively, and wherein the new trend import sets up at the exit end, and the new trend export sets up at the entering end, and the heat exchanger setting is in the new trend siphunculus. This application not only can be between waste gas or other heat transfer medium and new trend through the direct heat transfer of pipe wall, but also can improve its heat-absorbing capacity through the humidity that improves the new trend to improve forming machine waste heat recovery's conversion efficiency.

Description

Waste heat conversion device of setting machine

Technical Field

The application relates to a waste heat conversion device of a setting machine, which is suitable for the technical field of textile printing and dyeing equipment.

Background

At present, energy conservation and emission reduction become important tasks of industrial production, and the energy conservation and emission reduction has more economic and social benefits especially for enterprises with high energy consumption and high pollution. The setting machine is a common device in the textile printing and dyeing industry, the working temperature of the setting machine can be as high as several hundred ℃, and combustion-supporting gas such as external environment gas is required to be continuously introduced when the temperature is raised by adopting combustible gas. After the cloth is processed by the setting machine, a large amount of waste heat and chemical auxiliaries exist, and direct discharge not only wastes energy but also causes great pollution to the environment. The waste gas discharged by the setting machine contains air, water vapor, chemical additives, even carbon dioxide generated by combustion of combustible gas and the like, wherein the waste gas is rich in heat energy such as air and a large amount of water vapor. Although small amounts of chemical auxiliaries also generate some heat during condensation, the values are small. Therefore, the objects of waste heat recovery of the setting machine are mainly air containing heat energy and a large amount of water vapor. During waste heat recovery of the setting machine, the heat energy of the air in the waste gas is mainly sensible heat of the air, and latent heat reflected by condensation of a large amount of water vapor is huge, so that the sensible heat generated by air cooling, the sensible heat of the water vapor from high temperature to condensation and the latent heat in the condensation process are mainly recovered by the waste heat recovery.

Because contain a large amount of waste heat in the waste gas of forming machine, and if the external environment gas that lets in can utilize this part waste heat to preheat, then can avoid the waste of the energy greatly, waste gas has acted as heat transfer medium's role this moment. On the other hand, the setting machine can also carry out waste heat recovery, and the heat in the recovered heat carrier can be further used. Therefore, the air in the external environment can be considered to absorb the recovered waste heat energy through the heat exchanger, and the air is returned to the setting machine after the temperature is raised to be used as a part of the energy consumption of the setting machine. However, in reality, the heat absorption capacity of the ambient air is limited due to the small amount of moisture contained in the ambient air, and most of the recovered waste heat is difficult to be converted into heated air and then supplied to the setting machine. On the other hand, the existing setting machine waste heat recovery mostly adopts indirect heat exchange technology, namely, the temperature end difference exists between the waste gas and the fresh air through arranging too many middle heat exchange parts, thereby leading to the reduction of heat exchange efficiency.

Therefore, how to improve the conversion efficiency of the waste heat recovery of the setting machine is the key for improving the waste heat utilization efficiency of the setting machine.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to design a waste heat conversion device of forming machine, and it not only can be through the direct heat transfer of pipe wall between heat transfer medium and new trend, but also can improve its heat absorption capacity through the humidity that improves the new trend to improve forming machine waste heat recovery's conversion efficiency.

The application relates to a waste heat conversion device of a setting machine, which comprises an inlet end and an outlet end of a heat exchange medium and a heat exchanger, wherein two ends of the heat exchanger are respectively communicated with the inlet end and the outlet end and are in sealing connection; still include the new trend siphunculus, the both ends of new trend siphunculus are equipped with new trend import and new trend export respectively, wherein the new trend import sets up the discharge end, the new trend export sets up the entering end, the heat exchanger sets up in the new trend siphunculus.

The fresh air through pipe can be internally provided with a humidifying component, and the humidifying component can be arranged in the middle of the fresh air through pipe; a humidifying compartment can be arranged in the fresh air through pipe, and the humidifying component is arranged in the humidifying compartment; the heat exchanger may be disposed between the inlet end and the humidification compartment and between the humidification compartment and the outlet end, and both ends of the heat exchanger may be in communication with and hermetically connected to the inlet end, the outlet end, and the humidification compartment, respectively.

Wherein the pipeline of the heat exchanger can be obliquely arranged, and a collecting tank is arranged at the discharge end; a flange can be arranged between the setting machine and the inlet end, and a filter screen is arranged in the inlet end; the heat exchanger can comprise at least one heat exchange tube, and waste heat conversion channels are formed among the heat exchange tubes and between the heat exchange tubes and the fresh air through tube; the waste heat conversion channel can be divided into at least two compartments; the heat exchange tube can be provided with fins.

According to the waste heat conversion device of forming machine of this application, have following technical advantage:

(1) the heat exchanger has the advantages that the structural design is reasonable, waste gas or other heat carriers in the heat exchanger can directly exchange heat with fresh air in the waste heat conversion channel through the pipe wall, and meanwhile, the flowing direction of the fresh air is set to be opposite to the flowing direction of a heat exchange medium in the heat exchanger, so that the heat exchange between the waste gas and the fresh air is more sufficient, the heat loss in the heat exchange process is reduced, and the heat utilization efficiency is improved;

(2) through setting up the humidification subassembly for carry out the humidification to the new trend that gets into the new trend siphunculus through the new trend import and after one section heating path initial heating, with the humidity that improves the new trend, thereby make the new trend after the humidity rises can further absorb the heat and heat up, avoided making the limited problem of its heat absorption performance because of new trend humidity, make the new trend can absorb more waste heat and rise to higher temperature, further improved the recycle efficiency of waste heat, reduced the energy consumption.

Drawings

Fig. 1 is a schematic view of a first embodiment of the waste heat conversion device of the present application.

Fig. 2 is a schematic view of a second embodiment of the waste heat conversion device of the present application.

Fig. 3 is a schematic view of a third embodiment of the waste heat conversion device of the present application.

Fig. 4 is a schematic view of a fourth embodiment of the waste heat conversion device of the present application.

Fig. 5 is a schematic view of a fourth embodiment of the waste heat conversion device of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The application the waste heat conversion of forming machine be that the heat transfer medium bears the weight of discharged heat in the forming machine after, get into the heat transfer pipeline of heat exchanger, the new trend flows in the space that heat exchanger pipeline and heat preservation passageway formed simultaneously, the heat transfer medium carries out the heat exchange with the new trend through the pipe wall of heat exchanger. The heat exchange medium of this application can be the waste gas of for example forming machine direct emission, or the heat carrier after carrying out waste heat recovery to the waste gas of forming machine, such as heat conduction oil etc..

Referring to fig. 1-4, exhaust gas is illustrated as an example of a heat exchange medium. After heat exchange, the waste gas is led out of heat and the temperature is reduced, and moisture and chemical auxiliaries in the waste gas are condensed into liquid which flows out in the heat exchange pipeline and further flows into a collecting tank to be collected. Fresh air absorbs heat of waste gas, temperature rises, and then after humidity is improved through the humidifying assembly, more heat of the waste gas can be absorbed. The humidified hot air continuously exchanges heat with the waste gas through the pipe wall, the temperature is further increased, the heated fresh air is sucked into the setting machine as a part of the sucked air of the setting machine, and the high-efficiency utilization of the waste heat of the waste gas is realized.

The waste heat conversion device of the setting machine comprises an inlet end 1 and an outlet end 5 of waste gas, and two ends of a heat exchanger 4 are respectively communicated and hermetically connected with the inlet end 1 and the outlet end 5, so that the waste gas flows into the heat exchanger 4 through the inlet end 1 and is discharged through the outlet end 5. The heat exchanger 4 may be composed of a plurality of heat exchange tubes, and heat exchange channels are formed between the heat exchange tubes. Still include new trend siphunculus 21, the both ends of new trend siphunculus 21 are equipped with new trend import and new trend export respectively, and wherein the new trend import sets up at the exhaust end 5 of waste gas and sets up rather than the interval, and the new trend export sets up at the entering end 1 of waste gas and sets up rather than the interval. The heat exchanger 4 is arranged in the fresh air through pipe 21, and a waste heat conversion channel 2 is formed between the heat exchanger 4 and the fresh air through pipe 21. When the heat exchanger 4 is composed of a plurality of heat exchange tubes, the waste heat conversion channels 2 are formed among the plurality of heat exchange tubes and between the heat exchanger 4 and the fresh air through pipe 21. Therefore, fresh air can flow into the waste heat conversion channel from the fresh air inlet and can reversely flow with waste gas in the heat exchanger in the fresh air through pipe to exchange heat, so that the temperature of the waste gas in the heat exchanger is reduced, the rich waste heat is converted into heat of the fresh air, and the fresh air is discharged through the fresh air outlet and then circularly enters the setting machine for operation and use. Above-mentioned waste heat conversion device in this application, its structural design is reasonable for waste gas in the heat exchanger can carry out the heat exchange through the heat exchanger pipe wall directness and the new trend in the waste heat conversion passageway, simultaneously through setting up the flow direction with the new trend to with the waste gas flow direction in the heat exchanger opposite, make the heat exchange between the two more abundant, reduced the calorific loss among the heat exchange process, improved heat utilization efficiency.

As shown in fig. 1, a humidifying component 3, preferably a spray humidifying component, is arranged in the fresh air duct 21. The humidifying component 3 is preferably arranged in the middle of the fresh air duct 21, and it should be understood that the middle is not geometrically central, but can be adjusted in distance from the fresh air inlet and the fresh air outlet of the fresh air duct according to actual needs. Humidification subassembly 3 is used for going into the new trend siphunculus through the new trend import and carrying out the humidification through the new trend after one section heating path initial heating to improve the humidity of new trend, thereby make the new trend after the humidity rises can further absorb the heat and heat up, avoided making the limited problem of its heat absorption performance because new trend humidity, make the new trend can absorb more waste heat and rise to higher temperature, further improved the recycle efficiency of waste heat, reduced the energy consumption.

In one embodiment, the exhaust gas discharged from the setting machine can flow into the inlet end 1 through a flange 12 connected with the setting machine, and the filter screen 11 arranged in the inlet end 1 filters and intercepts the fibrous substances in the exhaust gas, so that the solid particulate matters in the exhaust gas entering the heat exchanger 4 are reduced. The filtered waste gas enters the heat exchanger 4, heat is transferred outwards through the pipe wall, and the waste gas after heat exchange is connected with a channel pipeline for discharging the waste gas through a flange 52 of the discharge end 5, so that the waste gas can be further subjected to clean treatment or discharged up to the standard.

After the fresh air enters the waste heat conversion channel 2, the fresh air is subjected to heat exchange with waste gas in the heat exchanger pipeline through the pipe wall, the temperature of the fresh air gradually rises, the relative humidity gradually decreases, and the fresh air is humidified when flowing through the humidifying assembly 3. After humidification, the fresh air further exchanges heat with the waste gas in the heat exchanger 4 through the pipe wall, the temperature of the fresh air continues to rise, finally the fresh air is discharged out of the device and sucked by the setting machine, and the waste heat sucked by the fresh air in the device is transferred into the setting machine. In order to prevent the heat from being transferred to the environment of the fresh air with the increased temperature by absorbing the heat of the exhaust gas, the outer wall of the waste heat conversion channel 2 needs to be subjected to heat insulation treatment. In order to facilitate the collection of the condensed liquid from the exhaust gases, it is possible to make the inlet end 1 higher than the outlet end 5 in the horizontal direction, i.e. the pipes of the heat exchanger 4 are inclined at an angle, so that the condensed liquid can flow smoothly into the collection tank 51.

In order to ensure that the heat exchange between the fresh air and the waste gas through the pipe wall of the heat exchanger is sufficient, fig. 2 is a special embodiment of the present application, wherein the waste heat conversion channel is divided into three vertical compartments, so that the flow direction of the fresh air is perpendicular to the flow direction of the waste gas and sequentially passes through the three vertical compartments. The fresh air inlet is still designed to be close to the exhaust end 5 of the waste gas, fresh air enters from the inlet A, sequentially passes through the outlet B, the inlet C, the outlet D and the inlet E, and is finally exhausted through the outlet F. It is clear to the person skilled in the art that a simple variant of the above described embodiment is also possible, i.e. it is also possible to divide the residual heat conversion channel into a plurality of transverse compartments. As shown in fig. 3, a fin 41 may be added to the heat exchanger 4, so as to further increase the heat exchange area.

In another embodiment shown in fig. 4, a separate humidification compartment 31 is provided in the fresh air duct 21, and the humidification module 3 is provided in the humidification compartment 31. Wherein, a heat exchanger 4 is arranged between the inlet end 1 and the humidifying compartment 31, and two ends of the heat exchanger 4 are respectively communicated and hermetically connected with the inlet end 1 and the humidifying compartment 31; a heat exchanger 4 is arranged between the humidifying compartment 31 and the discharge end 5, and two ends of the heat exchanger 4 are respectively communicated and hermetically connected with the humidifying compartment 31 and the discharge end 5. At this time, fresh air is introduced through the inlet end 1 and discharged from the outlet end 5, and exhaust gas is introduced from an exhaust gas inlet provided at the outlet end 5 and discharged from an exhaust gas outlet provided at the inlet end 1.

In another embodiment shown in fig. 5, the waste heat of the setting machine can be recovered through a heat exchange medium such as heat transfer oil, and then the heat transfer oil exchanges heat with fresh air in the device shown in fig. 5 and further improves the heat exchange capacity through humidifying the fresh air.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims

1. The waste heat conversion device of the setting machine is characterized by comprising an inlet end and an outlet end of a heat exchange medium and a heat exchanger, wherein the heat exchanger is respectively communicated with the inlet end and the outlet end and is in sealing connection with the inlet end and the outlet end; still include the new trend siphunculus, the both ends of new trend siphunculus are equipped with new trend import and new trend export respectively, wherein the new trend import sets up the discharge end, the new trend export sets up the entering end, the heat exchanger sets up in the new trend siphunculus.

2. The waste heat conversion device of claim 1, wherein a humidification assembly is disposed in the fresh air duct.

3. The waste heat conversion device according to claim 2, wherein the humidifying assembly is disposed in a middle position of the fresh air duct.

4. The waste heat conversion device of claim 2, wherein a humidification compartment is disposed in the fresh air duct, and the humidification assembly is disposed in the humidification compartment.

5. The waste heat conversion device according to claim 4, wherein the heat exchanger is disposed between the inlet end and the humidifying compartment and between the humidifying compartment and the outlet end, and two ends of the heat exchanger are respectively communicated and hermetically connected with the inlet end, the outlet end and the humidifying compartment.

6. The residual heat conversion device according to any one of claims 1 to 5, characterized in that the pipe of the heat exchanger is arranged obliquely and is provided with a collecting trough at the discharge end.

7. The waste heat conversion device according to any one of claims 1-5, wherein a flange is provided between the setter and the inlet end, and a screen is provided in the inlet end.

8. The waste heat conversion device according to any one of claims 1 to 3, wherein the heat exchanger comprises at least one heat exchange pipe, and waste heat conversion channels are formed between the heat exchange pipes and the fresh air through pipe.

9. The waste heat conversion device of claim 8, wherein the waste heat conversion channel is divided into at least two compartments.

10. A waste heat conversion device according to any one of claims 1-5 and 9, characterized in that the heat exchanger is provided with fins.