Waste heat recycling device

By installing an air inlet pipe and a heating pipe in the waste heat recovery device, the hot airflow heats the water supply pipe, solving the problems of limited contact area and the influence of low-temperature water flow on heat exchange effect, thus achieving efficient waste heat recovery.

CN223636687UActive Publication Date: 2025-12-05FORREST SMART HEATING (ANSHAN) CO LTD
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Patent Information

Application Number
CN202423155908.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-05
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing waste heat recovery and reuse devices typically use low-temperature water to wrap heat flow pipes for heat recovery, resulting in limited contact area, failure of hot air to effectively raise water temperature, and significant impact of low-temperature water flow rate on heat exchange efficiency.

Method used

By setting up an air inlet pipe, hot air is injected into the heating pipe through the air inlet pipe and flows along the heating pipe to heat the water supply pipe. The structure of the heating pipe wrapping the water supply pipe improves the contact area and heat exchange efficiency.

Benefits of technology

This technology enables the conversion of low-temperature water into high-temperature water, improving heat exchange efficiency and solving the problems of limited contact area and the influence of low-temperature water flow on heat exchange effect.

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Patent Text Reader

Abstract

The utility model relates to the field of waste heat recovery, in particular to a waste heat recovery and reutilization device which comprises a water conveying pipeline. A water outlet is formed in the lower end of the water conveying pipeline, a water inlet is formed in the upper end of the water conveying pipeline, and the outer surface of the water conveying pipeline is sleeved with the heating pipeline. The upper left side of the outer surface of the heating pipeline is connected with one end of a first gas conveying pipe; through the arrangement of the air inlet pipe, hot air flow is injected through the air inlet pipe, at the moment, the air conveying valve is opened, the hot air flow flows into the heating pipeline through the second air conveying pipe and the first air conveying pipe and circulates along the heating pipeline, and in the circulation process, the hot air flow can heat the water conveying pipeline; therefore, low-temperature water in the water conveying pipeline is converted into high-temperature water, the waste heat recovery function is achieved, and meanwhile the heating pipeline wraps the water conveying pipeline, so that the heat exchange efficiency can be effectively improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of waste heat recovery, especially to waste heat recovery recycling device. BACKGROUND

[0002] Waste heat recovery recycling device is a kind of equipment specially designed for recycling the waste heat generated in production process, the main function of this device is to convert waste heat into electric energy or heat energy etc., so as to achieve the purpose of energy saving, reduce production cost.

[0003] The existing waste heat recovery recycling device is usually wrapped in hot flow pipeline when using low-temperature water to recover heat, which leads to limited contact area, and the hot gas usually does not effectively raise the water temperature and will cool down itself, and the recovery heat exchange effect is greatly affected by the flowability of low-temperature water.

[0004] Therefore, in view of the above-mentioned problems of the existing waste heat recovery recycling device, which is usually wrapped in hot flow pipeline when using low-temperature water to recover heat, leading to limited contact area, and the hot gas usually does not effectively raise the water temperature and will cool down itself, and the recovery heat exchange effect is greatly affected by the flowability of low-temperature water, a waste heat recovery recycling device can be designed, which is provided with an air inlet pipe, and the hot gas flow is injected through the air inlet pipe, at this time, the air inlet valve is opened, the hot gas flow will flow into the inside of the heating pipeline through the second air inlet pipe and the first air inlet pipe, and circulate along the heating pipeline, in the flow process, the hot gas flow can heat the water inlet pipeline, so as to convert the low-temperature water in the water inlet pipeline into high-temperature water, thereby realizing the function of waste heat recovery, and the setting of the heating pipeline wrapping the water inlet pipeline can effectively improve the heat exchange efficiency. SUMMARY

[0005] In order to overcome the problem that the existing waste heat recovery recycling device is usually wrapped in hot flow pipeline when using low-temperature water to recover heat, leading to limited contact area, and the hot gas usually does not effectively raise the water temperature and will cool down itself, and the recovery heat exchange effect is greatly affected by the flowability of low-temperature water.

[0006] The utility model discloses a technical scheme for: a waste heat recovery and recycling device, comprising a water delivery pipeline; further comprising a heating pipeline, a first gas delivery pipe, a gas delivery valve, a second gas delivery pipe, an air inlet pipe, a circulation assembly and an auxiliary assembly, the lower end of the water delivery pipeline is provided with a water outlet, the upper end of the water delivery pipeline is provided with a water inlet, the outer surface of the water delivery pipeline is sleeved with the heating pipeline, the outer surface of the heating pipeline is connected with one end of the first gas delivery pipe at the left upper position, the other end of the first gas delivery pipe is connected with the gas delivery valve, the right side of the gas delivery valve is provided with the second gas delivery pipe, the outer surface of the second gas delivery pipe is provided with the air inlet pipe at the upper side, the outer surface of the heating pipeline is provided with the circulation assembly at the left side, and the right side of the second gas delivery pipe is connected with the auxiliary assembly.

[0007] Preferably, by setting the air inlet pipe, the hot gas flow is injected through the air inlet pipe, at this time, the gas delivery valve is opened, the hot gas flow flows into the inside of the heating pipeline through the second gas delivery pipe and the first gas delivery pipe, and circulates along the heating pipeline, in the flow process, the hot gas flow can heat the water delivery pipeline, so that the low-temperature water in the water delivery pipeline is converted into high-temperature water, thereby realizing the function of waste heat recovery, and the setting of the heating pipeline wrapping the water delivery pipeline can effectively improve the heat exchange efficiency, thereby solving the problem that the existing waste heat recovery and recycling device usually adopts the mode of wrapping the hot flow pipeline with low-temperature water for heat recovery when in use, so that the contact area is relatively limited, the hot gas usually does not effectively raise the water temperature, and the hot gas will be cooled down itself, and the recycling heat exchange effect is greatly affected by the fluidity of the low-temperature water.

[0008] Preferably, the water delivery pipeline and the heating pipeline are both in a meandering structure, and the water delivery pipeline and the heating pipeline are both in a multi-segment assembly.

[0009] Preferably, the water delivery pipeline is made of metal copper.

[0010] Preferably, the circulation assembly comprises a first circulation pipe, a circulation valve and a second circulation pipe; one end of the first circulation pipe is connected with the left upper position of the outer surface of the heating pipeline, the other end of the first circulation pipe is connected with the circulation valve, one end of the second circulation pipe is connected with the bottom surface of the circulation valve, and the other end of the second circulation pipe is connected with the left side of the outer surface of the heating pipeline.

[0011] Preferably, the auxiliary assembly comprises a first auxiliary pipe, an auxiliary valve and a second auxiliary pipe; one end of the second auxiliary pipe is connected with the right lower position of the outer surface of the heating pipeline, the other end of the second auxiliary pipe is connected with the auxiliary valve, one end of the first auxiliary pipe is arranged on the right side surface of the auxiliary valve, and the other end of the first auxiliary pipe is connected with the second gas delivery pipe.

[0012] Preferably, the bottom end of the heating pipeline is provided with a sealing plug, the inner ring surface of the sealing plug is matched with the outer surface of the water delivery pipeline, and a plurality of exhaust holes are formed in the bottom surface of the sealing plug.

[0013] Preferably, the end port positions of the water outlet, water inlet and air inlet pipe are provided with connecting flanges.

[0014] The present utility model has the advantages of:

[0015] 1. By setting the air inlet pipe, hot gas injection through the air inlet pipe, at this time open the gas valve, hot gas will flow into the inside of the heating pipeline through the second gas pipe and the first gas pipe, and along the heating pipeline, in the flow process, hot gas can heat the water pipeline, so as to change the low temperature water inside the water pipeline into high temperature water, so as to realize the function of waste heat recovery, at the same time, the heating pipeline wrapping the water pipeline can effectively improve the heat exchange efficiency, so as to solve the problem that the existing waste heat recovery and reuse device usually uses the mode of wrapping the hot flow pipeline with low temperature water for heat recovery when in use, which leads to limited contact area, and the hot gas usually does not effectively raise the water temperature and will be cooled down, and the recovery and heat exchange effect is greatly affected by the fluidity of low temperature water. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a waste heat recovery and reuse device three-dimensional structure schematic diagram is shown.

[0017] Figure 2 The utility model discloses a waste heat recovery and reuse device three-dimensional structure schematic diagram is shown.

[0018] Figure 3 The utility model discloses a waste heat recovery and reuse device three-dimensional structure schematic diagram is shown.

[0019] Figure 4 The utility model discloses a waste heat recovery and reuse device three-dimensional structure schematic diagram is shown.

[0020] Figure 5 The utility model discloses a waste heat recovery and reuse device three-dimensional structure schematic diagram is shown. Figure 2 The utility model discloses a waste heat recovery and reuse device three-dimensional structure schematic diagram is shown.

[0021] Reference signs: 1, water pipeline; 2, water outlet; 3, water inlet; 4, heating pipeline; 5, first gas pipe; 6, gas valve; 7, second gas pipe; 8, air inlet pipe; 91, first circulation pipe; 92, circulation valve; 93, second circulation pipe; 101, first auxiliary pipe; 102, auxiliary valve; 103, second auxiliary pipe; 11, sealing plug; 12, exhaust hole; 13, connecting flange. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-5 The utility model provides a kind of embodiment: waste heat recovery and reuse device, including water delivery pipeline 1;Further including heating pipeline 4, first gas delivery pipe 5, gas valve 6, second gas delivery pipe 7, air inlet pipe 8, circulation component and auxiliary component, the lower end of water delivery pipeline 1 is provided with water outlet 2, the upper end of water delivery pipeline 1 is provided with water inlet 3, the outer surface of water delivery pipeline 1 is equipped with heating pipeline 4, the outer surface left side of heating pipeline 4 is connected with one end of first gas delivery pipe 5, the other end of first gas delivery pipe 5 is connected with gas valve 6, the right side of gas valve 6 is provided with second gas delivery pipe 7, the outer surface upper side of second gas delivery pipe 7 is provided with air inlet pipe 8, the outer surface left side of heating pipeline 4 is provided with circulation component, the right side of second gas delivery pipe 7 is connected with auxiliary component, by setting air inlet pipe 8, hot airflow is injected through air inlet pipe 8, at this time, open gas valve 6, hot airflow will flow into the inside of heating pipeline 4 through second gas delivery pipe 7 and first gas delivery pipe 5, and along heating pipeline 4 is circulated, in flow process, hot airflow can heat water delivery pipeline 1, to change low temperature water in the inside of water delivery pipeline 1 into high temperature water, to realize the function of waste heat recovery, and the setting of heating pipeline 4 wrapping water delivery pipeline 1 can effectively improve heat exchange efficiency, to solve the problem that existing waste heat recovery and reuse device is generally in the mode of wrapping hot flow pipeline with low temperature water for heat recovery when in use, resulting in limited contact area, hot gas usually does not effectively raise water temperature, and itself will be cooled, and the effect of heat recovery is greatly influenced by the mobility of low temperature water flow.

[0024] Please refer to Figures 1-4 In the embodiment, water delivery pipeline 1 and heating pipeline 4 are both meander structure, water delivery pipeline 1 and heating pipeline 4 are all multi-section assembly, by setting water delivery pipeline 1 and heating pipeline 4 as meander structure, the overall length of water delivery pipeline 1 and heating pipeline 4 can be increased while reducing the overall space occupied by the device, to improve heat exchange effect, water delivery pipeline 1 is made of metal copper, by making water delivery pipeline 1 of metal copper, water delivery pipeline 1 can have higher thermal conductivity, so that the heat flow in the inside of heating pipeline 4 can quickly heat water delivery pipeline 1, circulation component includes first circulation pipe 91, circulation valve 92 and second circulation pipe 93;The outer surface left side of heating pipeline 4 is connected with one end of first circulation pipe 91, the other end of first circulation pipe 91 is connected with circulation valve 92, the bottom surface of circulation valve 92 is connected with one end of second circulation pipe 93, the other end of second circulation pipe 93 is connected with the outer surface left side of heating pipeline 4, by setting circulation valve 92, after opening circulation valve 92, heat flow can flow through first circulation pipe 91 and second circulation pipe 93, to flow back to the inside of heating pipeline 4 again, to sufficiently improve the utilization rate of hot airflow.

[0025] Please refer toFigures 1-5 In the embodiment, the auxiliary assembly includes a first auxiliary pipe 101, an auxiliary valve 102 and a second auxiliary pipe 103; one end of the second auxiliary pipe 103 is connected to the lower right side of the outer surface of the heating pipe 4, the other end of the second auxiliary pipe 103 is connected to the auxiliary valve 102, the right side surface of the auxiliary valve 102 is provided with one end of the first auxiliary pipe 101, and the other end of the first auxiliary pipe 101 is connected to the second gas conveying pipe 7; by setting the auxiliary valve 102, after the auxiliary valve 102 is opened, the heat flow can form a circulation between the first auxiliary pipe 101 and the second auxiliary pipe 103 and the heating pipe 4, so as to assist the circulation assembly to work, and avoid the case that the pressure in the pipe is too high; the bottom end of the heating pipe 4 is provided with a sealing plug 11, the inner ring surface of the sealing plug 11 is attached to the outer surface of the water conveying pipe 1, and a plurality of exhaust holes 12 are formed through the bottom surface of the sealing plug 11; by setting the sealing plug 11 and the exhaust holes 12, a small part of the airflow flowing in the heating pipe 4 is discharged from the heating pipe 4 through the exhaust holes 12, so as to achieve the purpose of pressure relief; the port positions of the water outlet 2, the water inlet 3 and the air inlet pipe 8 are provided with connecting flanges 13; by setting the connecting flanges 13, the staff can conveniently install the whole device, and the convenience is improved.

[0026] In the embodiment, the auxiliary assembly includes a first auxiliary pipe 101, an auxiliary valve 102 and a second auxiliary pipe 103; one end of the second auxiliary pipe 103 is connected to the lower right side of the outer surface of the heating pipe 4, the other end of the second auxiliary pipe 103 is connected to the auxiliary valve 102, the right side surface of the auxiliary valve 102 is provided with one end of the first auxiliary pipe 101, and the other end of the first auxiliary pipe 101 is connected to the second gas conveying pipe 7; by setting the auxiliary valve 102, after the auxiliary valve 102 is opened, the heat flow can form a circulation between the first auxiliary pipe 101 and the second auxiliary pipe 103 and the heating pipe 4, so as to assist the circulation assembly to work, and avoid the case that the pressure in the pipe is too high; the bottom end of the heating pipe 4 is provided with a sealing plug 11, the inner ring surface of the sealing plug 11 is attached to the outer surface of the water conveying pipe 1, and a plurality of exhaust holes 12 are formed through the bottom surface of the sealing plug 11; by setting the sealing plug 11 and the exhaust holes 12, a small part of the airflow flowing in the heating pipe 4 is discharged from the heating pipe 4 through the exhaust holes 12, so as to achieve the purpose of pressure relief; the port positions of the water outlet 2, the water inlet 3 and the air inlet pipe 8 are provided with connecting flanges 13; by setting the connecting flanges 13, the staff can conveniently install the whole device, and the convenience is improved.

[0027] Through the above steps, by setting the air inlet pipe 8, the hot gas flow is injected through the air inlet pipe 8, at this time the air valve 6 is opened, the hot gas flow will flow into the inside of the heating pipeline 4 through the second air inlet pipe 7 and the first air inlet pipe 5, and circulate along the heating pipeline 4, in the flow process, the hot gas flow can heat the water pipeline 1, so as to convert the low-temperature water in the water pipeline 1 into high-temperature water, so as to realize the function of waste heat recovery, and the setting of the heating pipeline 4 wrapping the water pipeline 1 can effectively improve the heat exchange efficiency, so as to solve the problem that the existing waste heat recovery and reuse device usually adopts the mode of wrapping the hot flow pipeline with low-temperature water for heat recovery in use, which causes the contact area to be limited, the hot gas usually does not effectively raise the water temperature, and the recovered heat exchange effect is greatly affected by the flowability of the low-temperature water.

Claims

1. A waste heat recovery and reuse device, comprising a water delivery pipeline (1); characterized in that: It also includes heating pipeline (4), first gas pipeline (5), gas valve (6), second gas pipeline (7), air inlet pipe (8), circulating assembly and auxiliary assembly, the lower end of water pipeline (1) is provided with water outlet (2), the upper end of water pipeline (1) is provided with water inlet (3), the outer surface of water pipeline (1) is sleeved with heating pipeline (4), the outer surface left side of heating pipeline (4) is connected with one end of first gas pipeline (5), the other end of first gas pipeline (5) is connected with gas valve (6), the right side of gas valve (6) is provided with second gas pipeline (7), the outer surface upper side of second gas pipeline (7) is provided with air inlet pipe (8), the outer surface left side of heating pipeline (4) is provided with circulating assembly, the right side of second gas pipeline (7) is connected with auxiliary assembly.

2. The waste heat recovery recycling device according to claim 1, characterized by: Water pipeline (1) and heating pipeline (4) are both meander structure, water pipeline (1) and heating pipeline (4) are both multi-section assembly.

3. The waste heat recovery recycling device according to claim 1, characterized by: Water pipeline (1) is made of metal copper.

4. The waste heat recovery recycling device according to claim 1, characterized by: Circulating assembly includes first circulating pipe (91), circulating valve (92) and second circulating pipe (93), the outer surface left side of heating pipeline (4) is connected with one end of first circulating pipe (91), the other end of first circulating pipe (91) is connected with circulating valve (92), the bottom surface of circulating valve (92) is connected with one end of second circulating pipe (93), the other end of second circulating pipe (93) is connected with the outer surface left side of heating pipeline (4).

5. The waste heat recovery recycling device according to claim 1, characterized by: Auxiliary assembly includes first auxiliary pipe (101), auxiliary valve (102) and second auxiliary pipe (103), the outer surface right side of heating pipeline (4) is connected with one end of second auxiliary pipe (103), the other end of second auxiliary pipe (103) is connected with auxiliary valve (102), the right side surface of auxiliary valve (102) is provided with one end of first auxiliary pipe (101), the other end of first auxiliary pipe (101) is connected with second gas pipeline (7).

6. The waste heat recovery recycling device according to claim 1, characterized by: The bottom end of heating pipeline (4) is provided with sealing plug (11), the inner ring surface of sealing plug (11) is matched with the outer surface of water pipeline (1), the bottom surface of sealing plug (11) is provided with a plurality of exhaust holes (12).

7. The waste heat recovery recycling device according to claim 1, characterized by: The port position of water outlet (2), water inlet (3) and air inlet pipe (8) is provided with connecting flange (13). The port position of water outlet (2), water inlet (3) and air inlet pipe (8) is provided with connecting flange (13).