Energy-saving and efficient heat energy recovery heat exchanger

Abstract

The utility model discloses an energy-saving and efficient heat energy recovery heat exchanger, and belongs to the field of heat exchange devices. Comprising a shell; a water inlet pipe and a water outlet pipe are arranged on the pipe body; the shell and the pipe body are respectively provided with a wastewater port for the wastewater pipeline to circulate; the pipe body comprises an upper water chamber stamping plate; a lower water chamber stamping plate; the first sealing plate is fixedly arranged on the upper water chamber stamping plate; the second sealing plate is fixedly arranged on the lower water chamber stamping plate; the two ends of each heat exchange pipe are connected with the first sealing plate and the second sealing plate correspondingly; the upper water chamber stamping plate is provided with a first cavity, the lower water chamber stamping plate is provided with a second cavity, and the first cavity is provided with a water inlet and a water outlet which are communicated with the water inlet pipe and the water outlet pipe respectively; the two ends of part of the heat exchange pipes communicate with the water inlet of the first cavity and the second cavity correspondingly, and the two ends of part of the heat exchange pipes communicate with the water outlet of the first cavity and the second cavity correspondingly. The energy-saving and efficient heat energy recovery heat exchanger has the beneficial effect of being high in heat exchange efficiency.

Description

Technical Field

[0001] This application relates to the field of heat exchange devices, and more particularly, to a heat exchanger for energy-saving and efficient heat recovery. Background Art

[0002] Statistics show that in daily life, when we wash, shampoo, or take a shower, the water is generally heated to 40 - 45 degrees Celsius, and only about 8 degrees are consumed during use. The hot water discharged after use has a temperature of about 32 - 37 degrees Celsius. Normally, this part of the warm water will flow into the sewer in vain. At this time, not only the waste water but also the "heat" flows into the sewer, that is, a considerable amount of "waste heat" is wasted. If the "waste heat" can be effectively recovered and utilized, the heating time and cost can be greatly saved. No matter what type of water heater it is, in places with a large demand for hot water, the energy consumption is very large, and the requirements for electrical energy and supporting facilities are also getting higher and higher. Therefore, energy conservation is very important for daily use, and the emergence of the heat energy recovery device has greatly improved this situation.

[0003] The internal structure of the existing heat energy recovery device is composed of spiral corrugated pipes. When the machine is in use, since it is vertically installed, there is only a space for waste water to pass through in the middle, and heat exchange is only carried out by the surrounding spiral coils. When the flow rate is too fast, the waste water will flow away before the spiral coils can carry out heat exchange, resulting in low heat exchange efficiency. Moreover, its shape is relatively long. For example, most shampoo beds are not tall enough to install it; when the angle is inclined, the efficiency becomes low, and it is not suitable for special-shaped beds with an inclined angle. Summary of the Utility Model

[0004] This part of the content of this application is used to briefly introduce the concepts, which will be described in detail in the following Detailed Description section. This part of the content of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] To solve the technical problems mentioned in the above Background Art section, some embodiments of this application provide a heat exchanger for energy-saving and efficient heat recovery, including:

[0006] A housing;

[0007] A pipe body, disposed inside the housing, and an inlet pipe and an outlet pipe are provided on the pipe body;

[0008] Waste water ports for the waste water pipe to flow through are provided on both the housing and the pipe body;

[0009] The pipe body includes:

[0010] An upper water chamber stamping plate;

[0011] A lower water chamber stamping plate;

[0012] The first sealing plate is fixedly arranged on the stamping plate of the upper water chamber;

[0013] The second sealing plate is fixedly arranged on the stamping plate of the lower water chamber;

[0014] There are several heat exchange tubes, and both ends thereof are respectively connected to the first sealing plate and the second sealing plate;

[0015] Wherein, a first cavity is formed in the stamping plate of the upper water chamber, a second cavity is formed in the stamping plate of the lower water chamber, and a water inlet and a water outlet communicated with the water inlet pipe and the water outlet pipe are respectively formed on the first cavity; both ends of some heat exchange tubes are respectively communicated with the water inlet of the first cavity and the second cavity, and both ends of some heat exchange tubes are respectively communicated with the water outlet of the first cavity and the second cavity.

[0016] Further, the first cavity is composed of a first flow channel, a second flow channel and a third flow channel;

[0017] The second cavity is composed of a fourth flow channel and a fifth flow channel;

[0018] The water inlet is located in the first flow channel, and the water outlet is located in the second flow channel;

[0019] Both ends of some heat exchange tubes are respectively communicated with the first flow channel and the fourth flow channel, both ends of some heat exchange tubes are respectively communicated with the fourth flow channel and the third flow channel, both ends of some heat exchange tubes are respectively communicated with the third flow channel and the fifth flow channel, and both ends of some heat exchange tubes are respectively communicated with the fifth flow channel and the second flow channel.

[0020] Further, the cross-section of the third flow channel is larger than the cross-sections of the first flow channel and the second flow channel.

[0021] Further, first through holes and second through holes for the heat exchange tubes to pass through are formed on both the upper water chamber sealing plate and the lower water chamber sealing plate.

[0022] Further, a first sealing ring is arranged between the stamping plate of the upper water chamber and the water inlet pipe, and a second sealing ring is installed between the stamping plate of the upper water chamber and the water outlet pipe.

[0023] Further, the pipe body further includes:

[0024] A baffle connecting disc is sleeved on the heat exchange tube;

[0025] There are two baffle plates which are fixedly arranged on the baffle connecting disc;

[0026] Wherein, several third through holes for the heat exchange tubes to pass through are formed on the baffle connecting disc.

[0027] Further, the diameter of the third through hole is larger than the outer diameter of the heat exchange tube.

[0028] Further, a convex portion is arranged on the baffle plate, and a clamping groove for the convex portion to be inserted into is formed on the baffle connecting disc.

[0029] Furthermore, round holes for the waste water to pass through are formed in the baffle connecting disc.

[0030] Furthermore, the housing includes:

[0031] A cylindrical barrel;

[0032] An upper cover disposed at one end of the cylindrical barrel;

[0033] A lower cover disposed at the other end of the cylindrical barrel;

[0034] The water outlet pipe and the water inlet pipe respectively extend outside the upper cover; the waste water outlet is located on the upper cover, and an interface for connecting with the waste water pipe is provided on the lower cover, and a thread is provided on the interface for connecting with the waste water pipe through the thread.

[0035] The beneficial effects of the present application are as follows: a heat exchanger for energy-saving and efficient heat recovery is provided. By using heat exchange tubes with small diameters, multiple heat exchange tubes are arranged in a limited space to save land occupation and increase the length of the heat exchange tubes. The two ends of the heat exchange tubes are not connected by commonly used U-shaped elbows, but a water chamber structure with a more compact structure is used to extend the service life and achieve sufficient heat exchange. Through the arrangement of the water inlet pipe and the water outlet pipe, and in cooperation with the baffle plates and baffle connecting plates fixed on the heat exchange tubes, the positioning of the tube body and the housing is realized. An interference connection is adopted by using a sealing ring to achieve the purpose of sealing the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application.

[0037] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the elements and elements are not necessarily drawn to scale.

[0038] In the drawings:

[0039] Figure 1 is the overall schematic diagram according to the embodiment of the present application;

[0040] Figure 2 is the exploded view of the embodiment, mainly showing the housing;

[0041] Figure 3 is the structural schematic diagram of a part of the embodiment, mainly showing the cavity;

[0042] Figure 4 is the exploded view of the embodiment, mainly showing the tube body;

[0043] Figure 5It is an exploded view of an embodiment, mainly showing the baffle connection disc.

[0044] Reference numerals:

[0045] 1. Housing; 2. Tube body; 3. Waste water outlet; 4. Water inlet pipe; 5. Water outlet pipe; 6. Upper cover; 7. Cylindrical barrel; 8. Lower cover; 9. Interface; 10. First sealing plate; 11. Stamping plate of the upper water chamber; 12. Second sealing plate; 13. Stamping plate of the lower water chamber; 14. Heat exchange tube; 15. Water inlet; 16. Water outlet; 17. First flow channel; 18. Second flow channel; 19. Third flow channel; 20. Fourth flow channel; 21. Fifth flow channel; 22. First through hole; 23. Second through hole; 24. First sealing ring; 25. Second sealing ring; 26. Baffle connection disc; 27. Baffle plate; 28. Third through hole; 29. Round hole; 30. Protrusion; 31. Card slot. Detailed implementation manners

[0046] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0047] In addition, it should be noted that for the sake of convenience of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0048] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0049] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly indicated otherwise in the context, it should be understood as "one or more".

[0050] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0051] Refer to Figures 1-5 , a heat exchanger for energy-saving and efficient heat recovery, including a housing 1 and a tube body 2; the tube body 2 is arranged inside the housing 1, and by adopting an assembled connection, it is more convenient (to disassemble) and clean. Waste water outlets 3 for the circulation of waste water pipes are provided on both the housing 1 and the tube body 2; a water outlet pipe 5 and a water inlet pipe 4 are provided on the tube body 2, and the water outlet pipe 5 and the water inlet pipe 4 respectively extend outside the housing 1.

[0052] The housing 1 includes an upper cover 6, a cylindrical barrel 7, and a lower cover 8; the upper cover 6 and the lower cover 8 are respectively arranged at both ends of the cylindrical barrel 7 and are in interference connection with the cylindrical barrel through plastic forming. The water outlet pipe 5 and the water inlet pipe 4 respectively extend outside the upper cover 6; the waste water port 3 is located on the upper cover 6, and an interface 9 for connecting with a waste water pipe is provided on the lower cover 8, and the interface 9 of the lower cover 8 is provided with a thread and is connected to the waste water pipe through the thread.

[0053] The cylindrical barrel 7 is made of a PVC pipe.

[0054] The pipe body 2 includes a first sealing plate 10, an upper water chamber stamping plate 11, a second sealing plate 12, a lower water chamber stamping plate 13, and heat exchange tubes 14; the upper water chamber stamping plate 11 and the lower water chamber stamping plate 13 are respectively detachably arranged inside the housing 1; the heat exchange tubes 14 have a smaller diameter and are arranged in a staggered (or in-line) arrangement of several pieces. Both ends of the heat exchange tubes 14 are connected to the first sealing plate 10 and the second sealing plate 12 by welding. The first sealing plate 10 is fixedly welded to the upper water chamber stamping plate 11, and the second sealing plate 12 is fixedly welded to the lower water chamber stamping plate 13. Among them, a first cavity is opened on the upper water chamber stamping plate 11, a second cavity is opened on the lower water chamber stamping plate 13, a water inlet 15 communicating with the water inlet pipe 4 is opened on the first cavity, and a water outlet 16 communicating with the water outlet pipe 5 is opened on the first cavity; both ends of some of the heat exchange tubes 14 are respectively communicated with the water outlet 16 of the first cavity and the second cavity, and both ends of some of the heat exchange tubes 14 are respectively communicated with the water inlet 15 of the first cavity and the second cavity.

[0055] In order to extend the heat exchange time of the water body (as shown by the arrow in the attachment Figure 3 ). On the basis of the above cavities, this application divides the first cavity into a first flow channel 17, a second flow channel 18, and a third flow channel 19. The second cavity is divided into a fourth flow channel 20 and a fifth flow channel 21; the water inlet 15 is located in the first flow channel 17, and the water outlet 16 is located in the second flow channel 18. So that both ends of some of the heat exchange tubes 14 are respectively communicated with the first flow channel 17 and the fourth flow channel 20, both ends of some of the heat exchange tubes 14 are respectively communicated with the fourth flow channel 20 and the third flow channel 19, both ends of some of the heat exchange tubes 14 are respectively communicated with the third flow channel 19 and the fifth flow channel 21, and both ends of some of the heat exchange tubes 14 are respectively communicated with the fifth flow channel 21 and the second flow channel 18. Among them, the cross-sectional area of the third flow channel 19 is larger than the cross-sectional areas of the first flow channel 17 and the second flow channel 18. Thus, the water body flows into the first flow channel 17 through the water inlet 15, flows into the fourth flow channel 20, the third flow channel 19, and the fifth flow channel 21, and finally flows out from the water outlet 16 on the second flow channel 18. The water flow reciprocates and turns back multiple times, making the heat dissipation more uniform, and thus the heat dissipation efficiency is higher. The heat exchange area increases, the heat exchange time becomes longer, the heating time is reduced, and energy is saved.

[0056] The first closing plate 10 and the second closing plate 12 are both provided with a first through hole 22 and a second through hole 23 for the heat exchange tube 14 to pass through.

[0057] A first sealing ring 24 is provided between the water inlet chamber stamping plate 11 and the water inlet pipe 4, and a second sealing ring 25 is installed between the water inlet chamber stamping plate 11 and the water outlet pipe 5. The sealing ring is made of a sealing gasket. The sealing ring material is made of ethylene propylene diene monomer (EPDM) rubber or silica gel.

[0058] The heat exchange tube 14 is a φ5mm stainless steel heat exchange tube 14. And the row spacing between the heat exchange tubes 14 is between 8 and 15 mm, and the column spacing is between 8 and 15 mm. Using a small tube diameter, it has a smaller volume compared to the same heat exchange efficiency.

[0059] The tube body 2 further includes a baffle connection disk 26 and baffle plates 27; a plurality of third through holes 28 are provided on the baffle connection disk 26, and the baffle connection disk 26 is sleeved on the heat exchange tube 14 through the third through holes 28, and the baffle plates 27 are two and are fixedly arranged on the baffle connection disk 26. Among them, a round hole 29 for the waste water to pass through is provided on the baffle connection disk 26. The diameter of the third through hole 28 is larger than the outer diameter of the heat exchange tube 14. Through the setting of the baffle connection disk 26, it is convenient to fix the position of the heat exchanger and increase the flow path of the fluid in the housing 1, so that the fluid in the housing 1 is in full contact with the heat exchange tube 14 for heat exchange.

[0060] The baffle connection disk 26 can be replaced with different lengths according to different usage scenarios, generally between 0 and 30 mm. According to different usage scenarios, when there are more waste water sundries, a filter screen is also added in the middle part.

[0061] The baffle plate 27 is provided with a convex portion 30, and the baffle connection disk 26 is provided with a card slot 31 for the convex portion 30 to be inserted into.

[0062] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A heat exchanger for energy-saving and efficient heat recovery, characterized in that: Comprising: A housing; A pipe body, disposed within the housing, and an inlet pipe and an outlet pipe are provided on the pipe body; Waste water openings for the flow of waste water pipes are provided on both the housing and the pipe body; The pipe body includes: An upper water chamber stamping plate; A lower water chamber stamping plate; A first sealing plate, fixedly disposed on the upper water chamber stamping plate; A second sealing plate, fixedly disposed on the lower water chamber stamping plate; Heat exchange pipes, several in number, with both ends respectively connected to the first sealing plate and the second sealing plate; Wherein, a first cavity is provided within the upper water chamber stamping plate, a second cavity is provided within the lower water chamber stamping plate, an inlet and an outlet communicating with the inlet pipe and the outlet pipe are respectively provided on the first cavity; both ends of some of the heat exchange pipes are respectively communicated with the inlet of the first cavity and the second cavity, and both ends of some of the heat exchange pipes are respectively communicated with the outlet of the first cavity and the second cavity.

2. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 1, wherein: The first cavity is composed of a first flow channel, a second flow channel and a third flow channel; The second cavity is composed of a fourth flow channel and a fifth flow channel; The inlet is located within the first flow channel, and the outlet is located within the second flow channel; Both ends of some of the heat exchange pipes are respectively communicated with the first flow channel and the fourth flow channel, both ends of some of the heat exchange pipes are respectively communicated with the fourth flow channel and the third flow channel, both ends of some of the heat exchange pipes are respectively communicated with the third flow channel and the fifth flow channel, and both ends of some of the heat exchange pipes are respectively communicated with the fifth flow channel and the second flow channel.

3. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 2, wherein: The cross-sectional area of the third flow channel is larger than that of the first flow channel and the second flow channel.

4. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 1, wherein: First through holes and second through holes for the heat exchange pipes to pass through are provided on both the first sealing plate and the second sealing plate.

5. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 1, wherein: A first sealing ring is provided between the upper water chamber stamping plate and the inlet pipe, and a second sealing ring is installed between the upper water chamber stamping plate and the outlet pipe.

6. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 1, wherein: The pipe body further includes: A baffle connection disc, sleeved on the heat exchange pipes; Baffle plates, two in number and fixedly disposed on the baffle connection disc; Wherein, a number of third through holes for the heat exchange pipes to pass through are provided on the baffle connection disc.

7. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 6, wherein: The diameter of the third through hole is larger than the outer diameter of the heat exchange pipe.

8. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 6, wherein: A raised portion is provided on the baffle plate, and a slot for the raised portion to be inserted into is provided on the baffle connection disc.

9. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 6, wherein: Round holes for waste water to pass through are provided on the baffle connection disc.

10. The heat exchanger for energy-saving and efficient heat energy recovery according to claim 1, wherein: The housing includes: A cylindrical barrel; The upper cover is provided at one end of the cylindrical barrel; The lower cover is provided at the other end of the cylindrical barrel; The water outlet pipe and the water inlet pipe respectively extend outside the upper cover; the waste water outlet is located on the upper cover, and an interface for connecting with a waste water pipe is provided on the lower cover, and the interface is provided with a thread for connecting with the waste water pipe through the thread.

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