Heat recovery assembly and device thereof

Abstract

The utility model provides a heat recovery assembly and a device thereof. The heat recovery assembly comprises a collection opening support and a heat insulation wrapping layer. The thermal insulation wrapping layer wraps the peripheral side of the opening collecting support in a surrounding mode, so that a hot air flow collecting channel is formed in the opening collecting support, the large end of the hot air flow collecting channel is arranged towards the paper conveying line, and the small end of the hot air flow collecting channel communicates with the air supply end of the hot air drying equipment. The circulating reutilization of the lost hot gas is realized; meanwhile, under the clamping of the heat preservation effect of the heat preservation wrapping layer, the problem that heat in hot air is further lost is effectively solved. According to the heat recovery assembly, the situation that heat loss of the hot air drying equipment is serious is well avoided, the stability of the paper drying quality is ensured, and the drying energy consumption of the hot air drying equipment is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water transfer printing paper production technical field especially relates to a heat recovery assembly and device thereof. BACKGROUND

[0002] Water transfer printing technology is through intermediate carrier (special paper or plastic film), with water as medium, and paste the figure on the surface of the printing material, thereby realizing the printing function.

[0003] At present, in the complex process flow of water transfer printing, the drying process cannot be avoided, and the main purpose of drying is to remove moisture, promote ink curing, improve adhesion and product quality, at this time, hot air drying equipment is usually used for drying paper; However, the inlet and outlet of the existing tunnel type hot air drying equipment (i.e. the inlet and outlet of the paper) generally has a serious heat loss, which leads to unstable paper drying quality; Moreover, this also means that the energy consumption of the drying device will be higher if the drying temperature in the tunnel cavity needs to be maintained at the target temperature, thereby causing high energy consumption of the drying device. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defects in the prior art, providing a heat recovery assembly and device thereof which can better avoid the serious heat loss of the hot air drying equipment, ensure the stability of the paper drying quality, realize the recycling of heat, and reduce the drying energy consumption of the hot air drying equipment.

[0005] The utility model aims at overcoming the defects in the prior art, providing a heat recovery assembly and device thereof which can better avoid the serious heat loss of the hot air drying equipment, ensure the stability of the paper drying quality, realize the recycling of heat, and reduce the drying energy consumption of the hot air drying equipment.

[0006] A heat recovery assembly comprises two heat recovery assemblies, one of which is arranged at the inlet end of the hot air drying equipment, and the other of which is arranged at the outlet end of the hot air drying equipment, each of which comprises:

[0007] A mouth collecting support;

[0008] A heat insulation wrapping layer surrounds the circumferential side of the mouth collecting support, forms a hot air collecting channel in the mouth collecting support, and the large end of the hot air collecting channel is arranged towards the paper conveying line, and the small end of the hot air collecting channel is communicated with the gas supply end of the hot air drying equipment.

[0009] In one embodiment, the mouth collecting support comprises a bottom frame and a top frame; the projection area of the top frame on the projection plane is smaller than the projection area of the bottom frame on the projection plane, and the projection plane is a plane parallel to the paper on the paper conveying line.

[0010] In one of the embodiments, the mouth collecting support further comprises a plurality of first structural members, both ends of the plurality of first structural members are used for connecting the top frame and the bottom frame, respectively.

[0011] In one of the embodiments, the heat recovery assembly further comprises a plurality of second structural members, the plurality of second structural members are sequentially arranged along the circumference of the top frame, the heat insulation layer also wraps around the circumferential side of the plurality of second structural members, so that the plurality of second structural members collectively enclose a hot gas guide channel in communication with the small end of the hot gas collecting channel, and the hot gas guide channel is used for communication with the gas supply end of the hot air drying device.

[0012] In one of the embodiments, the hot gas guide channel is provided with an air extractor, and the air extractor is used for sucking hot air.

[0013] In one of the embodiments, the heat recovery assembly further comprises two support frames, and the two support frames are oppositely arranged on both sides of the paper conveying line.

[0014] Each of the support frames comprises a support structural member and two L-shaped structural members, one end of each of the two L-shaped structural members is detachably connected with the hot air drying device, the other end of each of the two L-shaped structural members is welded with the support structural member, and the bottom of the bottom frame abuts against the top of the support structural member.

[0015] In one of the embodiments, the cross section of the mouth collecting support is trapezoidal.

[0016] In one of the embodiments, the top frame and the bottom frame are both rectangular.

[0017] In one of the embodiments, the width of the bottom frame is greater than the width of the inlet end of the hot air drying device and the width of the outlet end of the hot air drying device.

[0018] A heat recovery device comprises the heat recovery assembly of any one of the above embodiments.

[0019] Compared with the prior art, the heat recovery device has at least the following advantages:

[0020] By setting the large end of the hot gas collecting passage towards the paper conveying line, the hot gas lost from the inlet end and the outlet end of the hot gas drying device can be circulated to the gas supply end of the hot gas drying device through the hot gas collecting passage, realizing the recycling of the lost hot gas, and under the heat preservation effect of the heat preservation wrapping layer, the heat loss of the hot gas is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 Fig. 1 is a structural schematic diagram of the heat recovery assembly in an embodiment;

[0023] Figure 2 Fig. 2 is a partial enlarged view of position A of the heat recovery assembly shown in Fig. 1; Figure 1

[0024] Figure 3 Fig. 3 is an exploded view of the heat recovery assembly shown in Fig. 1; Figure 1

[0025] Figure 4 Fig. 4 is a sectional view of the heat recovery assembly shown in Fig. 1; Figure 1

[0026] Reference signs: heat recovery assembly 10; collecting port support 100; hot gas collecting passage 101; bottom frame 110; top frame 120; first structural member 130; hot gas drying device 200; heat preservation wrapping layer 300; second structural member 400; hot gas flow guiding passage 401; support frame 500; support structural member 510; two L-shaped structural members 520. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully with reference to the related drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] ​​​It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can 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 can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar terms are used for explanation only and are not intended to limit the embodiments of the present application.

[0029] Unless otherwise defined, 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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0030] The present disclosure provides a heat recovery assembly, including two heat recovery assemblies, one of which is arranged at the inlet end of a hot air drying device, and the other of which is arranged at the outlet end of the hot air drying device. Each of the heat recovery assemblies includes a mouth collecting support and a heat insulation coating. The heat insulation coating surrounds the circumferential side of the mouth collecting support, so that the mouth collecting support forms a hot air collecting passage, and the large end of the hot air collecting passage is arranged towards a paper conveying line, and the small end of the hot air collecting passage is communicated with the gas supply end of the hot air drying device.

[0031] For a better understanding of the heat recovery assembly 10 of the present application, the heat recovery assembly 10 is further explained as follows: Figures 1 to 4

[0032] The heat recovery assembly 10 of one embodiment includes two heat recovery assemblies 10, one of which is arranged at the inlet end of a hot air drying device 200, and the other of which is arranged at the outlet end of the hot air drying device 200. Each of the heat recovery assemblies 10 includes a mouth collecting support 100 and a heat insulation coating 300. The heat insulation coating 300 surrounds the circumferential side of the mouth collecting support 100, so that the mouth collecting support 100 forms a hot air collecting passage 101, and the large end of the hot air collecting passage 101 is arranged towards a paper conveying line, and the small end of the hot air collecting passage 101 is communicated with the gas supply end of the hot air drying device 200.

[0033] ​In the embodiment, by arranging the large end of the hot air collecting channel 101 towards the paper conveying line, the hot air lost from the inlet end and the outlet end of the hot air drying device 200 can be circulated back to the air supply end of the hot air drying device 200 through the hot air collecting channel 101, realizing the recycling of the lost hot air; meanwhile, under the heat preservation effect of the heat preservation wrapping layer 300, the problem of further heat loss in the hot air is effectively prevented. The heat recovery assembly 10 of the utility model preferably avoids the situation that the heat loss of the hot air drying device 200 is serious, so as to ensure the stability of the paper drying quality, and effectively reduce the drying energy consumption of the hot air drying device 200.

[0034] As shown in Figure 1 and Figure 3 In one of the embodiments, the collecting port support 100 comprises a bottom frame 110 and a top frame 120; the projection area of the top frame 120 on the projection plane is smaller than the projection area of the bottom frame 110 on the projection plane, and the projection plane is a plane parallel to the paper on the paper conveying line. In this way, the hot air collecting channel 101 is gradually narrowed from bottom to top, which is beneficial to improve the hot air collection and flow guiding effect of the heat recovery assembly 10.

[0035] As shown in Figure 3 In one of the embodiments, the collecting port support 100 further comprises a plurality of first structural members 130, the plurality of first structural members 130 are located between the top frame 120 and the bottom frame 110, and the two ends of the plurality of first structural members 130 are respectively used for connecting the top frame 120 and the bottom frame 110. In this way, by arranging the plurality of first structural members 130, the stability of the structural connection between the bottom frame 110 and the top frame 120 is preferably enhanced, thereby enhancing the structural stability of the hot air collecting channel 101.

[0036] It should be noted that in the embodiment, the top frame 120 and the bottom frame 110 are both made of a plurality of angle steels which are sequentially welded at the head and tail, and the first structural member 130 is also an angle steel, so that the collecting port support 100 has good overall structural stability. Of course, this is not limited, and those skilled in the art can also make other selections according to needs. For example, square steel, round steel or channel steel, etc.

[0037] As shown in Figures 1 to 4As shown in the drawings, in one embodiment, the heat recovery assembly 10 further comprises a plurality of second structural members 400 arranged in sequence along the circumference of the top frame 120, and the heat insulation layer 300 further surrounds the circumferential side of the plurality of second structural members 400, so that the plurality of second structural members 400 together enclose a hot air guide channel 401 in communication with the small end of the hot air collecting channel 101, and the hot air guide channel 401 is used to communicate with the gas supply end of the hot air drying device 200. In one embodiment, the hot air guide channel 401 is provided with an air extractor (not shown in the drawings), and the air extractor is used to suck hot air.

[0038] It can be understood that the hot air entering the hot air collecting channel 101 can be quickly guided by the air extractor in the hot air guide channel 401 to the gas supply end of the hot air drying device 200, effectively preventing the further loss of heat in the hot air, thereby improving the recycling value of the hot air.

[0039] As shown in the drawings, Figures 1 to 3 In one embodiment, the heat recovery assembly 10 further comprises two support frames 500 arranged on both sides of the paper conveying line in opposition; each support frame 500 comprises a support structural member 510 and two L-shaped structural members 520, one end of each L-shaped structural member is detachably connected with the hot air drying device 200, and the other end of each L-shaped structural member is welded with the support structural member 510, and the bottom of the bottom frame 110 abuts against the top of the support structural member 510.

[0040] It can be understood that the bottom of the bottom frame 110 abuts against the top of the support structural member 510, that is, the support frame 500 is used to support the bottom frame 110 of the heat recovery assembly 10, so that the bottom frame 110 is erected above the paper conveying line and adjacent to the inlet end of the hot air drying device 200 or above the outlet end of the hot air drying device 200. Specifically, in this embodiment, one end of the L-shaped structural member is screw-connected with the hot air drying device 200, facilitating disassembly and assembly.

[0041] It should be noted that the support structural member 510 and the two L-shaped structural members 520 are also angle steels.

[0042] As shown in the drawings, Figure 1 and Figure 4 In one embodiment, the cross section of the collecting port support 100 is trapezoidal.

[0043] As shown in the drawings, Figure 3 In one embodiment, the top frame 120 and the bottom frame 110 are both rectangular. Of course, this is not limited here, and those skilled in the art can also make other choices as needed.

[0044] As shown in Figure 1 and Figure 3 In one embodiment, the width of the bottom frame 110 is greater than the width of the inlet end of the hot air drying device 200 and the width of the outlet end of the hot air drying device 200. In this way, the large end of the hot air collecting channel 101 can cover the top of the inlet end of the hot air drying device 200 or the top of the outlet end of the hot air drying device 200, thereby improving the heat recovery rate of the large end of the hot air collecting channel 101.

[0045] The application also provides a heat recovery device comprising the heat recovery assembly 10 of any of the above embodiments.

[0046] In this embodiment, by arranging the large end of the hot air collecting channel towards the paper conveying line, the hot air lost from the inlet end and the outlet end of the hot air drying device can be returned to the air supply end of the hot air drying device through the hot air collecting channel, thereby realizing the recycling of the lost hot air. At the same time, under the insulation effect of the heat insulation wrapping layer, the loss of heat in the hot air is effectively prevented. The heat recovery device of the application can effectively avoid the situation that the heat loss of the hot air drying device is serious, thereby ensuring the stability of the paper drying quality and effectively reducing the drying energy consumption of the hot air drying device.

[0047] Compared with the prior art, the application has at least the following advantages:

[0048] By arranging the large end of the hot air collecting channel towards the paper conveying line, the hot air lost from the inlet end and the outlet end of the hot air drying device can be returned to the air supply end of the hot air drying device through the hot air collecting channel, thereby realizing the recycling of the lost hot air. At the same time, under the insulation effect of the heat insulation wrapping layer, the loss of heat in the hot air is effectively prevented. The heat recovery device of the application can effectively avoid the situation that the heat loss of the hot air drying device is serious, thereby ensuring the stability of the paper drying quality and effectively reducing the drying energy consumption of the hot air drying device.

[0049] The above embodiments only express several embodiments of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the application, some modifications and improvements can be made, which are within the scope of the application. Therefore, the protection scope of the application should be subject to the appended claims.

Claims

1. A heat recovery assembly, characterized by, The heat recovery assembly comprises two heat recovery components, one of which is arranged at the inlet end of the hot air drying device, and the other of which is arranged at the outlet end of the hot air drying device. The collecting support; The heat insulation layer surrounds the circumferential side of the collecting support, so that the collecting support forms a hot air collecting passage, and the large end of the hot air collecting passage is arranged towards the paper conveying line, and the small end of the hot air collecting passage is communicated with the gas supply end of the hot air drying device.

2. The heat recovery assembly of claim 1, wherein, The collecting support comprises a bottom frame and a top frame; the projection area of the top frame on a projection plane is smaller than the projection area of the bottom frame on the projection plane, and the projection plane is a plane parallel to the paper on the paper conveying line.

3. The heat recovery assembly of claim 2, wherein, The collecting support further comprises a plurality of first structural members, and the two ends of the plurality of first structural members are respectively used for connecting the top frame and the bottom frame.

4. The heat recovery assembly of claim 2, wherein, The heat recovery assembly further comprises a plurality of second structural members, and the plurality of second structural members are sequentially arranged along the circumferential direction of the top frame; the heat insulation layer also surrounds the circumferential side of the plurality of second structural members, so that the plurality of second structural members jointly form a hot air guiding passage communicated with the small end of the hot air collecting passage, and the hot air guiding passage is used for being communicated with the gas supply end of the hot air drying device.

5. The heat recovery assembly of claim 4, wherein, The hot air guiding passage is provided with an air extractor, and the air extractor is used for sucking hot air.

6. The heat recovery assembly of claim 2, wherein, The heat recovery assembly further comprises two support frames, and the two support frames are oppositely arranged on both sides of the paper conveying line. Each of the support frames comprises a support structural member and two L-shaped structural members, one end of each of the two L-shaped structural members is detachably connected with the hot air drying device, the other end of each of the two L-shaped structural members is welded with the support structural member, and the bottom of the bottom frame abuts against the top of the support structural member.

7. The heat recovery assembly of claim 1, wherein, The cross section of the collecting support is trapezoidal.

8. The heat recovery assembly of claim 2, wherein, The top frame and the bottom frame are both rectangular.

9. The heat recovery assembly of claim 2, wherein, The width of the bottom frame is greater than the width of the inlet end of the hot air drying device and the width of the outlet end of the hot air drying device.

10. A heat recovery device, characterized by, The heat recovery assembly comprises any one of claims 1-9.

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