Waste heat recycling box and heat exchange device in waste heat recycling box
By designing the flow guide rope and flow guide pipe, the blockage problem of the heat exchange device was solved, the cooling effect and maintenance convenience were improved, and efficient waste heat recovery and simplified maintenance procedures were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANG JIA GANG YI CHENG MASCH CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-10
AI Technical Summary
In traditional waste heat recovery boxes, heat exchange devices are prone to clogging of the guide holes by flocculent matter, which prevents cooling water from flowing out normally, affecting operation. At the same time, maintenance is inconvenient and increases labor intensity.
The system employs a flow-guiding rope structure, where the flow-guiding rope passes through the heat exchange tubes and has a movable weight at the lower end to maintain tension and prevent blockage. A flow-guiding pipe is installed on the cooling water tank to reduce water loss. An inspection hole is provided at the bottom of the tank for easy maintenance.
Ensure that cooling water flows smoothly into the heat exchange tubes to improve heat exchange efficiency, reduce loss, reduce maintenance time and labor intensity, and ensure the normal operation of the equipment.
Smart Images
Figure CN224108697U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of equipment for waste heat reuse of high-temperature exhaust gas, more particularly to a kind of waste heat reuse box and heat exchange device in it. BACKGROUND
[0002] The heat exchange device in the conventional waste heat reuse box, its structure usually includes: hot air passage arranged along horizontal direction, and several heat exchange pipes vertically arranged in the hot air passage, heat source passageway and cooling water tank are sequentially arranged above the hot air passage, water inlet is arranged on the cooling water tank, cooling outlet is opened on the cooling water tank opposite the heat exchange pipe, flow guide pipe is arranged in the cooling outlet of the cooling water tank and extends into the heat exchange pipe, the lower end of the flow guide pipe is circumferentially provided with flow guide hole, and plug is arranged in the port thereof. In actual use, since the high-temperature exhaust gas as heat source contains flocculation, the flow guide hole on the flow guide pipe is often blocked, which causes the flow guide pipe to be unable to normally discharge water due to blockage, thereby affecting the normal operation of the entire heat exchange device. In addition, since the box body of the conventional waste heat reuse box is only provided with an access hole at the lower part thereof, when the related parts in the heat source passage need to be repaired, the box body has to be opened, which not only increases the repair time, but also increases the labor intensity of the repair personnel. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a heat exchange device with smooth cooling water discharge without blockage.
[0004] To solve the above technical problem, the utility model adopts the technical scheme of a heat exchange device, which comprises: hot air passage arranged along horizontal direction, and several heat exchange pipes vertically arranged in the hot air passage, heat source passageway and cooling water tank are sequentially arranged above the hot air passage, cooling outlet is opened on the cooling water tank opposite the heat exchange pipe, flow guide rope is arranged in the cooling outlet of the cooling water tank and extends into the heat exchange pipe, and the lower end of the flow guide rope is movably provided with a weight to keep the flow guide rope in tension.
[0005] As a preferred scheme, in the heat exchange device, the flow guide rope passes through the center of the heat exchange pipe.
[0006] As a preferred scheme, in the heat exchange device, the cooling water tank is provided with flow guide pipes corresponding to the cooling outlets thereof, the lower end of the flow guide pipe is located above the heat exchange pipe, and the flow guide rope passes out of the corresponding flow guide pipe.
[0007] As a preferred scheme, in the heat exchange device, the flow guide rope passes through the center of the corresponding flow guide pipe.
[0008] As a preferred scheme, in the heat exchange device, the lower end surface of the flow guide pipe is higher than the upper end surface of the heat exchange pipe by more than 80 mm.
[0009] As a preferred scheme, in the heat exchange device, the flow guide hanging rope is sleeved with a protection pipe element which extends into the heat exchange pipe above the fixing position of the lower end.
[0010] As a preferred scheme, in the heat exchange device, the flow guide hanging rope is a stainless steel rope.
[0011] As a preferred scheme, in the heat exchange device, the heat exchange pipe is a copper pipe.
[0012] As a preferred scheme, in the heat exchange device, the falling object is provided in the following manner: the falling object is transversely provided with a hanging through hole, and the lower end of the flow guide hanging rope is fixed to the flow guide hanging rope after passing through the hanging through hole of the falling object.
[0013] Another technical problem to be solved by the utility model is to provide a waste heat recycling box which can overhaul parts in the upper part of the box.
[0014] To solve the above-mentioned another technical problem, the utility model adopts the technical scheme as follows: a waste heat recycling box, comprising: a box body, the box body is provided with the heat exchange device, the box body is provided with a plurality of overhaul openings below the heat exchange device, and a plurality of overhaul holes are arranged opposite to the heat source passage.
[0015] The utility model has the advantages of:
[0016] 1. The utility model adopts the open flow guide mode of the flow guide hanging rope, avoids the problem of clogging of the flow guide hole caused by the flocculent material, and ensures that the cooling water of the cooling water tank can smoothly enter the heat exchange pipe.
[0017] 2. The utility model increases the flow guide pipe which is located above the heat exchange pipe at the bottom end of the cooling water outlet of the cooling water tank, greatly reduces the loss of cooling water in the heat source passage, and improves the cooling effect.
[0018] 3. The utility model selects the stainless steel rope as the flow guide hanging rope, and ensures that the flow guide hanging rope does not rust during long-term use.
[0019] 4. The utility model discloses a protective pipe is sleeved into the heat exchange pipe on the fixed place of the fixed drop of the flow guide hanging rope, so that the flow guide hanging rope does not contact the heat exchange pipe directly when swinging, which avoids the inner wall of the heat exchange pipe being scratched by the flow guide hanging rope directly.
[0020] 5. The utility model discloses a hanging through hole is horizontally set up on the drop, and the lower end of the flow guide hanging rope is passed through the hanging through hole of the drop and is fixedly connected on the flow guide hanging rope, so that the swing range of the flow guide hanging rope can be reduced, and the swinging time can be increased during actual work, so that the pipe wall of the heat exchange pipe can be touched for a long time, the sundries attached to the pipe wall can be dropped out of the heat exchange pipe, and the heat exchange efficiency of the heat exchange pipe is further ensured.
[0021] 6. The utility model discloses a maintenance hole is set up on the box body to the heat source passageway, so that the parts in the heat source passageway can be maintained without opening the box, the maintenance time can be greatly shortened, and the labor intensity of the maintenance personnel is reduced. DRAWINGS
[0022] Figure 1 It is the structure schematic diagram of the heat exchange device of the utility model.
[0023] Figure 2 It is the structure schematic diagram of the waste heat recycling box of the utility model.
[0024] Figure 1 The reference signs of the drawings are as follows: 1, cooling water tank, 11, water inlet pipe, 12, cooling water outlet, 2, stainless steel flow guide pipe, 3, stainless steel flow guide hanging rope, 31, fixed place, 4, heat exchange copper pipe, 5, drop, 6, protective pipe, 9, box body, 901, maintenance opening, 902, maintenance hole, 91, hot air channel, 92, heat source passageway. DETAILED DESCRIPTION
[0025] The detailed implementation scheme of the waste heat recycling box and the heat exchange device in the waste heat recycling box of the utility model is described in detail below in combination with the drawings.
[0026] As shown in Figure 2 The waste heat recycling box of the utility model discloses a box body 9, and the heat exchange device is arranged in the box body 9. Figure 1As shown, the specific structure of the heat exchange device comprises: hot air channels arranged in horizontal direction, and a plurality of heat exchange copper pipes 4 arranged vertically in the hot air channels 91, a heat source passage 92 and a cooling water tank 1 are sequentially arranged above the hot air channels 91, a water inlet pipe 11 is arranged in the middle of the cooling water tank 1, the water inlet pipe 11 extends into the cooling water tank 1, the cooling water tank 1 is provided with a cooling water outlet 12 opposite to the heat exchange copper pipes 4, a stainless steel flow guide pipe 2 corresponding to the cooling water outlet 12 of the cooling water tank 1 is arranged on the cooling water tank 1, the lower end surface of the stainless steel flow guide pipe 2 is higher than the upper end surface of the heat exchange copper pipes 4 by more than 80 mm, a stainless steel flow guide hanging rope 3 is arranged downward in the cooling water outlet 12 of the cooling water tank 1, the stainless steel flow guide hanging rope 3 penetrates out of the stainless steel flow guide pipe 2 along the center line of the stainless steel flow guide pipe 2, and then penetrates out of the heat exchange copper pipes 4 along the center line of the heat exchange copper pipes 4, a falling object 5 for keeping the stainless steel flow guide hanging rope 3 in tension is movably arranged at the lower end of the stainless steel flow guide hanging rope 3, the falling object 5 is provided in the following manner: a hanging through hole is horizontally arranged at the upper end of the falling object 5, and the lower end of the stainless steel flow guide hanging rope 3 penetrates through the hanging through hole of the falling object 5 and is fixed on the stainless steel flow guide hanging rope 3, the stainless steel flow guide hanging rope 3 is sleeved with a protection pipe 6 extending into the heat exchange copper pipes 4 above the fixed position 31 of the lower end, in the embodiment, three maintenance openings 901 are arranged on the tank 9 in horizontal direction below the heat exchange device, and six maintenance holes 902 are arranged opposite to the heat source passage 92 (the number of the maintenance openings 901 and the maintenance holes 902 is determined according to actual conditions).
[0027] In actual application, the falling object 5 is usually a hollow pipe, and the protection pipe 6 is usually a stainless steel pipe, the lower end surface of the stainless steel flow guide pipe 2 should not be too high, and should be lower than the center line of the heat source passage 92.
[0028] In conclusion, the above is only a preferred embodiment of the present application, and is not used to limit the range of the present application, any equivalent changes and modifications made according to the shape, structure, features and spirit of the present application should be included in the scope of the present application.
Claims
1. A heat exchange device comprising: The hot air passage arranged horizontally, and the heat exchange pipes arranged vertically in the hot air passage, a heat source passage and a cooling water tank are arranged above the hot air passage in sequence, and the cooling water tank is provided with a cooling water outlet opposite to the heat exchange pipes, characterized in that the cooling water tank is provided with a flow guide hanging rope downward in the cooling water outlet, the flow guide hanging rope passes through the corresponding heat exchange pipe, and a falling object is movably arranged at the lower end of the flow guide hanging rope to keep the flow guide hanging rope in tension.
2. A heat exchange device according to claim 1, characterised in that: The flow guide hanging rope passes through the center of the heat exchange pipe.
3. A heat exchange device according to claim 1, wherein: The cooling water tank is provided with a flow guide pipe corresponding to the cooling water outlet, and the lower end surface of the flow guide pipe is above the heat exchange pipe, and the flow guide hanging rope passes through the corresponding flow guide pipe.
4. A heat exchange device according to claim 3, wherein: The flow guide hanging rope passes through the center of the corresponding flow guide pipe.
5. A heat exchange device according to claim 3, wherein: The lower end surface of the flow guide pipe is higher than the upper end surface of the heat exchange pipe by more than 80 mm.
6. A heat exchange device according to claim 1, wherein: The flow guide hanging rope is sleeved with a protection pipe inserted into the heat exchange pipe above the fixed portion of the lower end.
7. A heat exchange device according to claim 1, wherein: The flow guide hanging rope is a stainless steel rope.
8. A heat exchange device according to claim 1, wherein: The heat exchange pipe is a copper pipe.
9. A heat exchange device according to claim 1, wherein: The falling object is transversely provided with a hanging through hole, and the lower end of the flow guide hanging rope passes through the hanging through hole of the falling object and is fixed to the flow guide hanging rope.
10. A waste heat recovery tank comprising: The box is characterized in that the heat exchange device in any one of claims 1 to 9 is arranged in the box, and a plurality of maintenance openings are arranged below the heat exchange device on the box, and a plurality of maintenance holes are arranged opposite to the heat source passage.