CN209944630U

CN209944630U - Circulation and recycling system for hot air in power pipe ditch of vulcanization workshop

Info

Publication number: CN209944630U
Application number: CN201920351073.3U
Authority: CN
Inventors: 李国红; 陈永强
Original assignee: Bluestar Engineering Co Ltd
Current assignee: Bluestar Engineering Co Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-01-14
Anticipated expiration: 2029-03-19

Abstract

A hot air circulation and recycling system in a power pipe ditch of a vulcanization workshop is applied to the vulcanization workshop, wherein the vulcanization workshop and the power pipe ditch are arranged in the vulcanization workshop, and a heat distribution pipeline is arranged in the power pipe ditch; the outlet end of the hot air recirculation pipeline, which is far away from the vulcanizing workshop, is connected with the inlet end of an air treatment device; the outlet end of the air treatment device is connected into a vulcanization workshop through an air supply pipeline; the air treatment device comprises: the air mixing and filtering section, the heating section and the cooling section. The system has higher utilization value and simple structure, the hot air in the vulcanization workshop is reasonably applied, the energy waste is reduced, and a good working environment is provided for the workers in the vulcanization workshop.

Description

Circulation and recycling system for hot air in power pipe ditch of vulcanization workshop

Technical Field

The utility model relates to a hot-air waste heat recovery utilizes system in the rubber industry vulcanization power pipe ditch, especially relates to the circulation and the system of recycling of the inside hot-air of vulcanization workshop power pipe ditch.

Background

Energy conservation is a long-term strategic policy of economy and design development in China, circular economy is developed, energy conservation and consumption reduction are improved, emission reduction and pollution control are realized, the comprehensive utilization level of resources is improved, and the method is one of industrial policies in China.

In a rubber factory, particularly a tire factory, each vulcanization working section is provided with a vulcanization workshop, an independent power pipe trench is arranged in the middle of the vulcanization workshop, various pipelines such as a steam pipeline, a hot water pipeline, a condensed water pipeline, a circulating water pipeline, a compressed air pipeline and the like are laid in the power pipe trench, and valves and instruments are arranged on the pipelines. Maintenance personnel need to enter the power pipe ditch irregularly to maintain pipelines, valves and instruments, the necessary working environment temperature needs to be guaranteed in the pipe ditch, the heat preservation treatment is carried out on the surfaces of heat pipes in the power pipe ditch, the temperature of the outer surface of a heat preservation layer still reaches 40 ℃, the heat exchange is carried out between the surfaces of the heat pipes and the air in the pipe ditch, the air in the pipe ditch is heated, the air temperature in the pipe ditch rises, and the heat on the surfaces of the heat pipes is continuously transferred to the space of the pipe ditch, so that the temperature in the space in the pipe ditch continuously rises. In order to ensure the normal working environment in the vulcanization workshop, normal-temperature air needs to be fed into the vulcanization workshop, the environmental temperature in the ditch is reduced, and the maintenance is convenient. Normal temperature air enters at one end of the ditch, and heated hot air is collected from the middle or the other side of the pipe ditch and is discharged to the outside under pressure. This heat in the hot air is also discharged to the outdoor atmosphere and is not fully utilized, which is also a waste of energy in practice.

SUMMERY OF THE UTILITY MODEL

Therefore, the hot air waste heat recycling system in the vulcanization power pipe trench in the rubber industry capable of reducing energy consumption is needed to solve the problem of energy waste of an air circulation system in the existing vulcanization workshop.

A hot air circulation and recycling system in a vulcanization workshop is applied to the vulcanization workshop, a vulcanization trench and a power pipe trench are arranged in the vulcanization workshop, a heat distribution pipeline is arranged in the power pipe trench, and the hot air outlet end of the power pipe trench is connected with the inlet end of a hot air recycling pipeline; the outlet end of the hot air recirculation pipeline, which is far away from the vulcanizing workshop, is connected with the inlet end of an air treatment device; the outlet end of the air treatment device is connected into a vulcanization workshop through an air supply pipeline; the air treatment device comprises: the air mixing and filtering section, the heating section and the cooling section.

In one embodiment, the hot air recirculation duct is provided with a return fan near one end of the power duct. Through set up the fan that returns in hot-air circulation pipeline is inside to make the inside hot-air of power ditch enter into hot-air circulation pipeline's inside with higher speed, improved hot-air's conveying efficiency.

In one embodiment, one end of the hot air recirculation pipeline, which is far away from the power pipe ditch, is provided with a hot air discharge pipeline and a hot air recovery pipeline in parallel; wherein the outlet end of the hot air recovery pipeline is connected with the inlet end of the hot air processing device. The hot air exhaust pipeline exhausts the hot air in the hot air circulation pipeline to the outside, and the hot air recovery pipeline recovers the hot air to the inside of the hot air treatment device.

In one embodiment, a first air flow control valve is provided inside the hot air discharge duct; and a second air flow control valve is arranged in the hot air recovery pipeline. The first flow control valve is used to control the direction of the hot air, and when the first air flow control valve is opened, the hot air is discharged to the outside through the hot air discharge duct.

In one embodiment, the air treatment device further comprises: the air conditioner comprises an empty section, a fan section and an air outlet section; the air mixing and filtering section, the heating section, the empty section, the cooling section, the fan section and the air outlet section are sequentially arranged.

In one embodiment, the inlet end of the air treatment device and the fresh air inlet end are both in communication with the air mixing filter segment.

In one embodiment, the heating section is connected with a heating component, the heating component comprises a heat exchanger or a hot water/steam preparation device, the heat exchanger or the hot water/steam preparation device is connected with the heating section through a hot water/steam circulation pipeline, and a heat source electric regulating valve is arranged on the hot water/steam circulation pipeline.

In one embodiment, the temperature sensing component is arranged inside the vulcanization workshop and is interlocked with the heat source electric regulating valve, and the temperature sensing component can detect the temperature inside the vulcanization workshop and regulate the opening of the heat source electric regulating valve according to the detection result so as to control the heat source flow of the heating section.

In one embodiment, the cooling section is also provided with a cold water spray pipeline.

In one embodiment, an air purification device is further arranged inside the vulcanization trench.

The utility model discloses circulation and the system of recycling of inside hot-air of vulcanization workshop power trench, through set up hot-air recirculation pipeline between power trench and hot-air treatment device, thereby make the hot-air of inside of power trench enter the inside of hot-air treatment device, through set up the supply-air duct between hot-air treatment device and vulcanization workshop, thereby make the hot-air of inside of hot-air treatment device enter the vulcanization workshop, thereby constitute a circulating system, the hot-air of inside of power trench has obtained reasonable application, the waste of the energy has been reduced, provide a good operational environment for the staff of vulcanization workshop inside; the air mixing and filtering section is arranged in the hot air processing device, so that external fresh air can be received, and the outdoor fresh air is mixed with the hot air in the hot air circulating pipeline; the interior of the hot air processing device is provided with a heating section, and when the mixing temperature of outdoor fresh air and hot air in the hot air circulating pipeline is lower, the heating section starts to heat, so that the energy is saved; through setting up the cooling section in hot-air handling device's inside, when the mixed temperature of outdoor fresh air and the inside hot-air of hot-air circulation pipeline was too high, the cooling section began to cool down to provide the air of lower temperature for vulcanizing the workshop, provide comfortable operational environment for the staff of vulcanizing the workshop inside.

Drawings

Fig. 1 is a schematic structural diagram of a system for circulating and recycling hot air inside a power pipe trench of a vulcanization plant according to an embodiment of the present invention.

Vulcanization workshop 1 vulcanization trench 110 temperature sensing part 112 power trench 120 heat pipe 121 heat air recirculation pipe 2 return fan 210 hot air exhaust pipe 220 first air flow control valve 221 heat air recovery pipe 230 second air flow control valve 231 air treatment device 3 hot air mixing filter section 310 inlet end 311 fresh air inlet end 312 heating section 320 heating part 322 hot water/steam circulation pipe 3223 heat source electric regulating valve 3224 cooling section 330 air outlet section 340 air outlet section 360 supply pipe 4

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a preferred structure of the hot air waste heat recycling system in the vulcanization power pipe trench in the rubber industry provided by the embodiment is shown. As shown in the figure, the hot air waste heat recycling system in the vulcanization power pipe ditch in the rubber industry at least comprises: the hot air recycling system is applied to a vulcanization workshop 1, a vulcanization trench 110 and a power pipe trench 120 are arranged in the vulcanization workshop 1, a heat distribution pipeline 121 is arranged in the power pipe trench 120, and a hot air outlet end of the power pipe trench 120 is connected with an inlet end of a hot air recycling pipeline 2; the outlet end of the hot air recirculation pipeline 2, which is far away from the vulcanizing workshop 1, is connected with the inlet end of an air treatment device 3; the outlet end of the air treatment device 3 is connected into the vulcanization workshop 1 through an air supply pipeline 4; the air treatment device 3 includes: an air mixing filter section 310, a heating section 320, and a cooling section 330.

Specifically, the vulcanization workshop 1 is internally provided with a vulcanization pipe ditch 110 and a power pipe ditch 120, and various pipelines are laid inside the power pipe ditch 120, such as: the surface of the thermal pipe 121 exchanges heat with the air inside the power pipe trench 120 to heat the air inside the power pipe trench 120, and the heat on the surface of the thermal pipe 121 is continuously transferred to the space inside the power pipe trench 120, so that the temperature inside the power pipe trench 120 is continuously increased.

Further, the inside of the vulcanization trench 110 is also provided with an air purification device 111, so that harmful gas inside the vulcanization trench 110 is discharged after being purified, and the gas discharged from the vulcanization workshop 1 is ensured to meet the national atmospheric pollutant discharge standard.

In one embodiment, the end of the hot air recirculation duct 2 near the power duct 120 is provided with a return fan 210. The return fan 210 is arranged in the hot air recirculation pipeline 2, so that the hot air in the power pipe ditch 120 is accelerated to enter the hot air recirculation pipeline 2, and the conveying efficiency of the hot air is improved.

In one embodiment, the end of the hot air recirculation duct 2 remote from the power duct 120 is provided with a hot air discharge duct 220 and a hot air recovery duct 230 in parallel; wherein the outlet end of the hot air recovery duct 230 is connected to the inlet end of the air treatment device 3. The inlet end of the hot air recycling pipeline 2 is connected with the outlet end of the power pipe ditch 120, a return air fan 210 is arranged in the pipeline 2 for recycling hot air at a position close to the inlet end, one end of the pipeline 2 far away from the inlet end is provided with two pipelines side by side, one pipeline is a hot air exhaust pipeline 220 and used for exhausting the hot air in the pipeline 2 for recycling hot air outdoors, the other pipeline is a hot air recovery pipeline 230, the outlet end of the hot air recovery pipeline 230 is connected with the inlet end of the air treatment device 3 and used for recovering the hot air in the pipeline 2 for recycling hot air in the air treatment device 3.

In one embodiment, a first air flow control valve 221 is provided inside the hot air discharge duct; a second air flow control valve 231 is provided inside the hot air recovery duct 230. The first and second air

flow control valves

221 and 231 are used to control the direction of the flow of the hot air; when the outdoor temperature is high, the first air flow control valve 221 is opened, and the second air flow control valve 231 is closed, so that the hot air in the hot air recirculation pipe 2 can be discharged to the outdoor, and the hot air can not be recovered to the inside of the air processing device 3; when the outdoor air is low, the first air flow control valve 221 is closed and the second air flow control valve 231 is opened, so that the hot air in the hot air recycling pipeline 2 can be ensured to be recycled to the inside of the air processing device 3, and thus, the hot air cannot be discharged to the outdoor, and the recycling of the hot air is ensured.

In one embodiment, the air treatment device 3 further comprises: a blank section 340, a fan section 350 and an air outlet section 360; the air mixing and filtering section 310, the heating section 320, the idle section 340, the cooling section 330, the fan section 350 and the air outlet section 360 are sequentially arranged.

In another embodiment of the above embodiments, the positions of the heating section 320 and the cooling section 330 inside the hot air processing device 3 can be interchanged, and the positional relationship inside the air processing device 3 after the interchange is: the air mixing and filtering section 310, the cooling section 330, the idle section 340, the heating section 320, the fan section 350 and the air outlet section 360 are sequentially arranged.

In one embodiment, the inlet 311 of the hot air treatment device 3 and the fresh air inlet 312 are both in communication with the air mixing filter segment 310. The air mixing filter segment 310 is used for receiving the hot air inside the hot air recirculation duct 2 and introducing the fresh air outside, and mixing the hot air with the fresh air outside.

In one embodiment, the heating section 320 is connected to the heating member 322, the heating member 322 includes a heat exchanger or a hot water/steam preparation device, the heat exchanger or the hot water/steam preparation device is connected to the heating section 320 through a hot water/steam circulation pipe 3223, the hot water/steam circulation pipe 3223 is provided with a heat source electric adjusting valve 3224, the temperature sensing member 112 is disposed in an operation area inside the vulcanization workshop 1, the temperature sensing member 112 can detect the temperature of air inside the vulcanization workshop 1, and the temperature sensing member 112 adjusts the opening of the heat source electric adjusting valve 3224 according to a temperature detection result, so as to control the heat source flow rate of the heating member 322 entering the heating section 320, and further control the temperature of air heating inside the heating section 320, so as to adjust the air temperature inside the vulcanization workshop 1.

In one embodiment, a cold water spray pipe 331 and a water collection tray 332 are disposed in the cooling section 330 for cooling the air inside the air treatment device 3. When the outdoor air temperature is high (more than 25 ℃), the cold water is sprayed out from the cold water spraying pipeline 331 and exchanges heat with the hot air in the cooling section 330, so that the hot air is cooled.

Further, an electric spray water replenishing valve 3311 and a cold water manual control valve 3312 are provided on the cold water spray pipe 331, and when the water collection tray 332 is at a low water level, the electric spray water replenishing valve 3311 and the cold water manual control valve 3312 are normally opened.

In one embodiment, an air cleaning device 111 is further disposed inside the curing floor tunnel 110. The hot air inside the curing trench 110 is processed by the air cleaning device 111 inside the curing trench 110, so that it is determined that the air discharged inside the curing trench 110 meets the standard of atmospheric pollutant emission.

In a specific embodiment, the hot air inside the power duct 120 is rapidly introduced into the hot air recirculation duct 2 by the return fan 210, when the outdoor temperature is high (more than 25 c), the first air flow control valve 221 inside the hot air discharge duct 220 is opened, the second air flow control valve 231 inside the hot air recovery duct 230 is closed, the hot air is discharged to the outside while fresh air outside enters the fresh air inlet end 312 of the air processing device 3, the temperature is detected by the temperature sensing part 112, when the detection temperature is higher (higher than 25 ℃), the electric water replenishing valve 3311 and the cold water manual control valve 3312 in the cold water spraying pipeline 331 of the cooling section 330 are opened, cold water is sprayed out of the cold water spraying pipeline 331 to cool the hot air in the air treatment device 3, and the cooled air is blown into the vulcanization workshop 1 by the fan in the fan section 350. When the outdoor temperature is low (winter), the first air flow control valve 221 inside the hot air discharge duct 220 is closed, the second air flow control valve 231 inside the hot air recovery duct 230 is opened, the hot air is recycled to the inside of the air treatment device 3, and at the same time, the fresh air inlet 312 of the air treatment device 3 enters the outdoor fresh air, the hot air is mixed with the outdoor fresh air, the temperature is detected by the temperature sensing part 112, when the temperature of the mixed air is at an appropriate temperature (20 ℃ to 25 ℃), the mixed air is blown into the vulcanization plant 1 by a fan inside the fan section 350, when the temperature of the mixed air is low (less than 20 c), the heat exchanger inside the heating section 320 and the associated heating member 322 are operated to heat the mixed air to a suitable temperature (25 c), and the mixed air is blown into the vulcanization plant 1 by the blower inside the blower section 350.

Compared with the traditional system, the hot air circulation and recycling system in the vulcanization workshop 1 has the advantages that the steam is saved by 225.35t all the year round, and the quantity of the steam is reduced by 28.98 tons.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A hot air circulation and recycling system in a power pipe ditch of a vulcanization workshop is applied to the vulcanization workshop (1), a vulcanization trench (110) and a power pipe ditch (120) are arranged in the vulcanization workshop (1), a heat distribution pipeline (121) is arranged in the power pipe ditch (120), and the hot air circulation and recycling system is characterized in that the outlet end of the hot air of the power pipe ditch (120) is connected with the inlet end of a hot air recycling pipeline (2); the outlet end of the hot air recirculation pipeline (2) which is far away from the vulcanizing workshop (1) is connected with the inlet end of a hot air processing device (3); the outlet end of the air treatment device (3) is connected into the vulcanization workshop (1) through an air supply pipeline (4); the air treatment device (3) comprises: an air mixing filter section (310), a heating section (320), and a cooling section (330).

2. The system for the circulation and the re-use of hot air inside a power duct of a vulcanization plant according to claim 1, characterized in that the end of the hot air recirculation duct (2) close to the power duct (120) is provided with a return fan (210).

3. The system for the circulation and the re-use of hot air inside a power duct of a vulcanization plant according to claim 1, characterized in that the end of the hot air re-circulation duct (2) remote from the power duct (120) is provided in parallel with a hot air discharge duct (220) and a hot air recovery duct (230); wherein the outlet end of the hot air recovery duct (230) is connected to the inlet end of the hot air treatment device (3).

4. A system for the circulation and the re-use of hot air inside a power duct of a vulcanisation plant according to claim 3, characterised in that said hot air discharge duct (220) is internally provided with a first air flow control valve (221); a second air flow control valve (231) is disposed inside the hot air recovery duct (230).

5. A system for the circulation and the re-use of hot air inside a power duct of a vulcanization plant according to claim 1, characterized in that said hot air treatment device (3) further comprises: a blank section (340), a fan section (350) and an air outlet section (360); wherein the content of the first and second substances,

the air mixing and filtering section (310), the heating section (320), the idle section (340), the cooling section (330), the fan section (350) and the air outlet section (360) are sequentially arranged.

6. The system for the circulation and the re-use of hot air inside a power duct of a vulcanization plant according to claim 5, characterized in that the inlet end (311) of the hot air treatment device (3) and the fresh air inlet (312) are both in communication with the air mixing and filtering section (310).

7. The system for circulating and recycling hot air in a power pipe trench of a vulcanization plant according to claim 5, characterized in that the heating section (320) is connected with a heating element (322), the heating element (322) comprises a heat exchanger or a hot water/steam preparation device, the heat exchanger or the hot water/steam preparation device is connected with the heating section (320) through a hot water/steam circulation pipeline (3223), and a heat source electric regulating valve (3224) is arranged on the hot water/steam circulation pipeline (3223).

8. The system for circulating and recycling hot air inside a power duct of a vulcanization plant according to claim 7, characterized in that a temperature sensing part (112) is provided inside the vulcanization plant (1), and the temperature sensing part (112) is interlocked with the heat source electric control valve (3224), and the temperature sensing part (112) is capable of detecting the temperature inside the vulcanization plant (1) and adjusting the opening degree of the heat source electric control valve (3224) according to the detection result to control the heat source flow rate of the heating section (320).

9. The system for the circulation and the re-use of hot air inside power ducts of a vulcanization plant according to claim 5, characterized in that the cooling section (330) is also provided with a cold water spray duct (331).

10. The system for the circulation and the re-use of hot air inside a power duct of a vulcanization plant according to claim 1, characterized in that the inside of the vulcanization plant (110) is also provided with an air cleaning device (111).