A heat exchanger for waste heat utilization

Abstract

This utility model discloses a heat exchanger for waste heat utilization, including a vertical support frame, several heat exchange components fixed on the vertical support frame and arranged in parallel, and connecting bends connecting the ends of adjacent heat exchange components; each heat exchange component includes an outer tube, an inlet pipe and an outlet pipe respectively disposed on the outer tube, an oil pipe assembly that passes through the outer tube and is connected to the cooling oil circulation system of an air compressor, and an end cap with a threaded seal fitted on the oil pipe assembly and the outer tube; the inlet pipe and the outlet pipe are connected to the water supply for waste heat utilization; the oil pipe assembly includes an inner tube that passes through the outer tube, a threaded heat dissipation strip disposed on the edge of the inner tube and placed inside the outer tube, and two end support rings respectively disposed on the inner tube and located at the ends of the outer tube; the end support rings and the ends of the outer tube are squeezed and fitted inside the end caps; the distance between the outer ends of the two end support rings is equal to the length of the outer tube.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology, and in particular to a heat exchanger for waste heat utilization. Background Technology

[0002] This technology primarily focuses on the waste heat utilization of air compressors. An air compressor is a device that converts mechanical energy into gas pressure energy, storing energy by compressing air. It is widely used in industry, construction, medical, and automotive repair. The main heat dissipation methods for air compressors include air cooling, water cooling, oil cooling, and hybrid cooling. Small and medium-sized piston / screw compressors mostly use air cooling or water cooling, while large air compressors often employ oil cooling or hybrid cooling. In hybrid cooling, forced oil circulation with air cooling is commonly used. All heat dissipation is discharged into the air, with no waste heat utilization currently observed.

[0003] Therefore, there is an urgent need to propose a heat exchanger with a simple structure and reliable waste heat utilization. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a heat exchanger for waste heat utilization. The technical solution adopted by this utility model is as follows:

[0005] A waste heat utilization heat exchanger, externally connected to a waste heat utilization water supply and an air compressor cooling oil circulation system, includes a vertical support frame, several heat exchange components fixed on the vertical support frame and arranged in parallel, and connecting bends connecting the ends of adjacent heat exchange components.

[0006] The heat exchange assembly includes an outer tube, an inlet pipe and an outlet pipe respectively installed on the outer tube, an oil pipe assembly that runs through the outer tube and is connected to the cooling oil circulation system of the air compressor, and an end cap that is threaded and sealed on the oil pipe assembly and the outer tube; the inlet pipe and the outlet pipe are connected to the water supply for waste heat utilization.

[0007] The tubing assembly includes an inner tube that passes through an outer tube, a threaded heat dissipation strip located at the edge of the inner tube and inside the outer tube, and two end support rings respectively located on the inner tube and at the ends of the outer tube; the end support rings and the ends of the outer tube are squeezed and fitted inside the end sealing cap; the distance between the outer ends of the two end support rings is equal to the length of the outer tube.

[0008] Furthermore, the inlet pipe and outlet pipe are respectively located at both ends of the outer pipe, and the inlet pipe and outlet pipe are arranged opposite to each other.

[0009] Furthermore, both the inner and outer tubes are provided with external threads; the end cap is provided with an internal thread that matches the external threads.

[0010] Furthermore, a first sealing groove is provided at the outer end of the end support ring; a second sealing groove is provided at the end of the inner or outer tube of the end sealing cap; a first sealing ring is provided in the first sealing groove; a second sealing ring is provided in the second sealing groove; the first sealing ring is pressed between the end sealing cap and the end support ring, and the second sealing ring is pressed between the outer tube and the end sealing cap.

[0011] Furthermore, the outer edge of the threaded heat dissipation strip is in close contact with the inner wall of the outer tube.

[0012] Furthermore, the end cap is provided with several box wrench-shaped anti-slip strips.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) This utility model sets up several heat exchange components and sets connecting bends between the ends of adjacent heat exchange components to form a folded heat exchange, so as to reduce the floor space.

[0015] (2) This utility model is provided with an outer pipe, an inlet pipe, an outlet pipe, an inner pipe, a threaded heat dissipation strip, an end support ring and an end sealing cap. The water supply for waste heat utilization enters from the inlet pipe and flows between the threaded heat dissipation strips, so as to carry the heat of the heat dissipation oil circulation system in the inner pipe. Its contact area is large and the heat exchange is reliable.

[0016] (3) The present invention ensures the sealing reliability of the water supply for waste heat utilization by setting an end support ring, an end sealing cover, a first sealing ring and a second sealing ring.

[0017] In summary, this utility model has the advantages of simple structure and reliable waste heat utilization, and has high practical and promotional value in the field of waste heat utilization technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the heat exchange component in this utility model.

[0021] Figure 3This is a cross-sectional schematic diagram of the heat exchange component in this utility model.

[0022] Figure 4 This is a schematic diagram of the oil pipe assembly in this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the outer tube in this utility model.

[0024] In the above figures, the component names corresponding to the reference numerals are as follows:

[0025] 1. Vertical support frame; 2. Heat exchange assembly; 3. Connecting bend; 21. Outer pipe; 22. Inlet pipe; 23. Outlet pipe; 24. Oil pipe assembly; 25. End sealing cap; 241. Inner pipe; 242. Threaded heat dissipation strip; 243. End support ring; 244. First sealing groove; 251. Box wrench anti-slip strip; 261. First sealing ring; 262. Second sealing ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0027] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0028] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0029] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0030] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0031] like Figures 1 to 5 As shown, this embodiment provides a waste heat utilization heat exchanger, which is externally connected to a waste heat utilization water supply and an air compressor's cooling oil circulation system. The heat from the hot oil (lubricating oil) in the cooling oil circulation system is transferred to the waste heat utilization water supply. Here, the waste heat utilization heat exchanger includes a vertical support frame 1, several heat exchange components 2 fixed to the vertical support frame 1 and arranged in parallel, and connecting bends 3 connecting the ends of adjacent heat exchange components 2.

[0032] In this embodiment, the heat exchange assembly 2 includes an outer pipe 21, an inlet pipe 22 and an outlet pipe 23 respectively disposed on the outer pipe 21, an oil pipe assembly 24 that passes through the outer pipe 21 and is connected to the cooling oil circulation system of the air compressor, and an end cap 25 that is threadedly sealed onto the oil pipe assembly 24 and the outer pipe 21. The inlet pipe 22 and the outlet pipe 23 are connected to the waste heat utilization water supply and flow between the outer pipe 21 and the oil pipe assembly 24, absorbing the heat transferred by the oil pipe assembly 24.

[0033] Here, the tubing assembly 24 includes an inner tube 241 that passes through an outer tube 21, a threaded heat dissipation strip 242 disposed on the edge of the inner tube 241 and placed inside the outer tube 21, and two end support rings 243 respectively disposed on the inner tube 241 and located at the ends of the outer tube 21. The end support rings 243 and the ends of the outer tube 21 are squeezed and fitted within an end sealing cap 25; the distance between the outer ends of the two end support rings 243 is equal to the length of the outer tube 21. In this embodiment, to ensure reliable sealing, a first sealing groove 244 is provided at the outer end of the end support ring 243, and a second sealing groove is provided inside the end sealing cap 25 or at the end of the outer tube 21. A first sealing ring 261 is disposed in the first sealing groove 244, and a second sealing ring 262 is disposed in the second sealing groove. Thus, the first sealing ring 261 is squeezed between the end sealing cap 25 and the end support ring 243, and the second sealing ring 262 is squeezed between the outer tube 21 and the end sealing cap 25.

[0034] In this embodiment, both the inner tube 241 and the outer tube 21 are provided with external threads, and the end sealing cap 25 is provided with an internal thread that matches the external threads. In addition, several box wrench anti-slip strips 251 are provided on the end sealing cap 25.

[0035] In this embodiment, the inlet pipe 22 and the outlet pipe 23 are respectively located at both ends of the outer pipe 21, and the inlet pipe 22 and the outlet pipe 23 are arranged opposite to each other to facilitate reliable connection of adjacent oil pipe assemblies 24. In addition, the outer edge of the threaded heat dissipation strip 242 is close to the inner wall of the outer pipe 21, and the water supply for waste heat utilization flows along the threaded heat dissipation strip 242 to increase the heat exchange contact area.

[0036] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A heat exchanger for waste heat utilization, externally connected to a waste heat utilization water supply and an air compressor's cooling oil circulation system, characterized in that, It includes a vertical support frame (1), several heat exchange components (2) fixed on the vertical support frame (1) and arranged in parallel, and a connecting bend (3) connecting the ends of adjacent heat exchange components (2). The heat exchange assembly (2) includes an outer tube (21), an inlet pipe (22) and an outlet pipe (23) respectively installed on the outer tube (21), an oil pipe assembly (24) that runs through the outer tube (21) and is connected to the cooling oil circulation system of the air compressor, and an end cap (25) that is threaded and sealed on the oil pipe assembly (24) and the outer tube (21); the inlet pipe (22) and the outlet pipe (23) are connected to the water supply for waste heat utilization; The oil pipe assembly (24) includes an inner pipe (241) that passes through the outer pipe (21), a threaded heat dissipation strip (242) that is disposed on the edge of the inner pipe (241) and placed inside the outer pipe (21), and two end support rings (243) that are respectively disposed on the inner pipe (241) and located at the end of the outer pipe (21); the end support rings (243) and the end of the outer pipe (21) are squeezed and fitted inside the end sealing cap (25); the distance between the outer ends of the two end support rings (243) is equal to the length of the outer pipe (21).

2. The heat exchanger for waste heat utilization according to claim 1, characterized in that The inlet pipe (22) and outlet pipe (23) are respectively located at the two ends of the outer pipe (21), and the inlet pipe (22) and outlet pipe (23) are arranged opposite to each other.

3. The heat exchanger for waste heat utilization according to claim 1 or 2, characterized in that, Both the inner tube (241) and the outer tube (21) are provided with external threads; the end cap (25) is provided with an internal thread that matches the external threads.

4. The heat exchanger for waste heat utilization according to claim 1 or 2, characterized in that The outer end of the end support ring (243) is provided with a first sealing groove (244); the end sealing cap (25) or the end of the outer tube (21) is provided with a second sealing groove; a first sealing ring (261) is provided in the first sealing groove (244); a second sealing ring (262) is provided in the second sealing groove; the first sealing ring (261) is pressed between the end sealing cap (25) and the end support ring (243), and the second sealing ring (262) is pressed between the outer tube (21) and the end sealing cap (25).

5. The heat exchanger for waste heat utilization according to claim 1, characterized in that, The outer edge of the threaded heat dissipation strip (242) is close to the inner wall of the outer tube (21).

6. The heat exchanger for waste heat utilization according to claim 1 or 2, characterized in that The end cap (25) is provided with several anti-slip strips (251) for wrenches.

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