CN213273873U

CN213273873U - Waste heat recovery device

Info

Publication number: CN213273873U
Application number: CN202021573918.2U
Authority: CN
Inventors: 唐佳兴
Original assignee: Sichuan Jumeida Energy Saving And Environmental Protection Technology Co ltd
Current assignee: Sichuan Jumeida Energy Saving And Environmental Protection Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-05-25
Anticipated expiration: 2030-08-03

Abstract

A waste heat recovery device comprising: an exhaust pipe and a heat exchange mechanism. The upper and lower overlapping of blast pipe is equipped with two, and the blast pipe is the dumbbell structure, and the diameter at both ends is greater than the diameter of middle section. The heat exchange mechanism is arranged in the exhaust pipes, the heat exchange mechanisms are arranged in the two exhaust pipes respectively, each heat exchange mechanism comprises a pair of pressure stabilizing chambers, the pressure stabilizing chambers are located at two ends of each exhaust pipe respectively, a plurality of heat exchange pipes are connected between the pressure stabilizing chambers through threads, the heat exchange pipes communicate the pressure stabilizing chambers at the two ends, the pressure stabilizing chambers are connected with connecting pipes through threads, the connecting pipes penetrate through the side walls of the exhaust pipes, the two connecting pipes located in the middle of the heat recovery device are connected to two of the pipelines of the three-way pipe, and the other pipeline of. The water outlet pipe is divided into a high-temperature water outlet pipe and a low-temperature water outlet pipe, and a user can select the water outlet pipe according to the requirement; the parts are connected by threads, so that the disassembly and the assembly and the later maintenance are convenient; the pressure in each heat exchange tube is the same, preventing premature failure of individual heat exchange tubes.

Description

Waste heat recovery device

Technical Field

The utility model belongs to the waste heat recovery utilizes the field, especially relates to a waste heat recovery device.

Background

The waste heat recovery is to collect, convert and reuse the heat generated by the equipment during operation, thereby improving the utilization rate of energy. All kitchen equipment, air compressor machine etc. of workplace commonly used, current kitchen equipment, for example frying pan top of a kitchen range, cooking equipment all can produce a large amount of heat sources in the work, and wherein only partial heat is used for cooking food, and partial heat is then discharged in the atmosphere through exhaust system still, and this kind of mode will form huge energy waste. The existing waste heat recovery device leads the exhaust gas of equipment into the recovery device, heat exchange is formed in the recovery device, water in a water pipe arranged in the recovery device is heated, and the heated water is used for daily washing, washing dishes or boiling water. However, the existing waste heat recovery device still has the following defects:

1. the outlet water only has one water temperature, which is not convenient to distinguish and use, for example, when the water is used for washing, the water temperature only needs to be lower and close to the body temperature of a person, and when the water is used as boiling water, the water temperature needs to be more than 98 degrees;

2. the exhaust cavity and the water flow cavity of the waste heat recovery device are usually welded, and once the waste heat recovery device is damaged and leaked, the waste heat recovery device is difficult to maintain or even cannot be maintained;

3. the inlet tube adopts from supreme range upon range of setting down, is in the water pipe internal water volume of top when water pressure is not enough and will reduce even do not have, makes the water pipe of top damage more easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art at the same time, the utility model provides a waste heat recovery device, which is provided with a high-temperature water outlet and a low-temperature water outlet and is convenient to use; each connecting part of the water pipe and the exhaust pipe are of detachable structures, so that the maintenance is convenient; the inlet tube is equipped with the pressure stabilizing cavity to the outlet pipe is vertical arrangement, guarantees that the pressure of every water pipe is equal.

In order to realize the purpose of the utility model, the following scheme is proposed:

a waste heat recovery device, comprising: an exhaust pipe and a heat exchange mechanism.

The upper part and the lower part of the exhaust pipe are overlapped with two exhaust pipes, the exhaust pipes are of a dumbbell structure, and the diameters of the two ends are larger than that of the middle section.

The heat exchange mechanism is arranged inside the exhaust pipe, the heat exchange mechanisms are arranged in the two exhaust pipes respectively, each heat exchange mechanism comprises a pair of pressure stabilizing chambers, the pressure stabilizing chambers are located at two ends of the exhaust pipe respectively, a plurality of heat exchange pipes are connected between the pressure stabilizing chambers through threads, the heat exchange pipes communicate the pressure stabilizing chambers at two ends, the pressure stabilizing chambers are connected with connecting pipes through threads, the connecting pipes penetrate through the side walls of the exhaust pipes, the two connecting pipes located in the middle of the heat recovery device are connected to two of the pipelines of the three-way pipe, and the other pipeline of the three-way pipe is provided with a valve.

Furthermore, the outer contour of the pressure stabilizing chamber is of a cylindrical structure, and the diameter of the pressure stabilizing chamber is smaller than the inner diameter of the middle section of the exhaust pipe.

Furthermore, pipe joints are arranged between the heat exchange pipes and the pressure stabilizing chamber.

Furthermore, a sealing ring is arranged at the part of the connecting pipe penetrating through the exhaust pipe.

Furthermore, the heat exchange tube is of a circular tube structure, and a plurality of heat conduction plates are arranged along the peripheral side in an integral manner.

Furthermore, a sealing gasket is arranged between the exhaust pipes.

Furthermore, the two ends of the exhaust pipe are provided with flange plates.

Furthermore, the installation parts of the pressure stabilizing chamber corresponding to the heat exchange tubes and the connecting tubes are provided with threaded tubes.

The beneficial effects of the utility model reside in that:

1. the device is provided with two sections of exhaust pipes, each section of exhaust pipe is internally provided with a heat exchange mechanism, each group of heat exchange mechanisms can discharge water, a low-temperature crystal three-way pipe is provided with a valve to discharge water, and high-temperature water is discharged from a connecting pipe at the highest position of the device, and the water discharged at the highest position is subjected to the heat absorption process of the two sections of exhaust pipes, so that the water temperature is higher;

2. the pressure stabilizing chamber of the heat exchanger is connected with the heat exchange tube and the connecting tube by threads, so that the heat exchanger is convenient to disassemble and assemble and is convenient to maintain at the later stage;

3. the inlet of the heat exchanger is provided with a pressure stabilizing chamber, and all heat exchange tubes are communicated with the pressure stabilizing chamber, so that the pressure and the water volume in each heat exchange tube can be ensured to be the same.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

FIG. 1 shows the overall construction of the present application;

FIG. 2 shows an exploded view of the exhaust pipe and heat exchange structure;

FIG. 3 shows the structure of a plenum;

FIG. 4 shows the construction of a heat exchange tube;

FIG. 5 shows the structure of the seal ring;

FIG. 6 shows a top view of the present application;

fig. 7 shows a cross-sectional view along the direction a-a.

The labels in the figure are: 10-exhaust pipe, 11-sealing ring, 12-sealing gasket, 20-heat exchange mechanism, 21-pressure stabilizing chamber, 211-screwed pipe, 22-heat exchange pipe, 221-heat conducting plate, 23-connecting pipe, 24-three-way pipe and 25-pipe joint.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are some embodiments of the present invention, not all embodiments.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and this is only for the convenience of description of the present invention and simplification of the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

As shown in fig. 1 to 7, a waste heat recovery device includes: an exhaust pipe 10 and a heat exchange mechanism 20.

Specifically, two exhaust pipes 10 are arranged in an up-down overlapping manner, and a gasket 12 is arranged between the two exhaust pipes 10. The exhaust pipe 10 is in a dumbbell structure, and the diameters of the two ends are larger than that of the middle section. The exhaust pipe 10 both ends all are equipped with the ring flange, utilize the bolt to connect through the flange between two exhaust pipes 10, and the exhaust pipe 10 of top passes through the flange and is connected with the pipe connection of rear end, and the exhaust pipe 10 of below passes through the flange and links to each other with the exhaust hole of individual equipment.

Specifically, the heat exchange mechanisms 20 are arranged in the exhaust pipes 10 in a clearance manner, the two exhaust pipes 10 are respectively provided with the heat exchange mechanisms 20, each heat exchange mechanism 20 comprises a pair of pressure stabilizing chambers 21, the pressure stabilizing chambers 21 are respectively positioned at positions with larger diameters at two ends of the exhaust pipes 10 to ensure that a reasonable clearance exists between the pressure stabilizing chambers 21 and the exhaust pipes 10, a plurality of heat exchange pipes 22 are connected between the pressure stabilizing chambers 21 through threads, the pressure stabilizing chambers 21 at the two ends are communicated through the heat exchange pipes 22, the pressure stabilizing chambers 21 are all connected with connecting pipes 23 through threads, the connecting pipes 23 penetrate through the side walls of the exhaust pipes 10, the connecting pipe 23 positioned at the bottommost part of the waste heat recovery device is a water inlet pipe of the waste heat recovery device, the connecting pipe 23 positioned at the highest part of the waste heat recovery device is a water outlet pipe of high-; the two connecting pipes 23 in the middle of the heat recovery device are connected with two pipes of the three-way pipe 24, the water in the heat exchange mechanism 20 at the bottom can enter the heat exchange mechanism 20 at the upper part through the three-way pipe 23, the other pipe of the three-way pipe 24 is provided with a valve, the valve discharges the water with higher temperature, and the water at the position is heated by the group of heat exchange mechanisms 20, so the water temperature is lower. The user can select different water outlet positions to take water according to the requirement. The part of the connecting pipe 23 penetrating through the exhaust pipe 10 is provided with a sealing ring 11, as shown in fig. 5, a round hole with a non-smooth inner wall of the sealing ring 11 is provided with a groove on the outer side, the groove is embedded in the side wall of the exhaust pipe 10, the round hole is used for sealing the connecting pipe 23, and the sealing ring 11 is made of an oil-resistant and high-temperature-resistant fluororubber material.

More specifically, the plenum 21 is provided with a threaded pipe 211 corresponding to the mounting positions of the heat exchange pipe 22 and the connection pipe 23. A pipe joint 25 is arranged between the heat exchange pipe 22 and the pressure stabilizing chamber 21. The pipe joint 25 is internally threaded at both ends thereof, and has one end connected to the threaded pipe 211 and the other end connected to the heat exchange pipe 22.

Preferably, the outer contour of the pressure stabilizing chamber 21 is a cylindrical structure, the diameter of the pressure stabilizing chamber is smaller than the inner diameter of the middle section of the exhaust pipe 10, a predetermined gap is left between the periphery of the pressure stabilizing chamber 21 and the inner wall of the exhaust pipe 10 after the pressure stabilizing chamber 21 is arranged on the exhaust pipe 10 for exhausting, and the design of the cylindrical structure is favorable for uniform exhaust, so that all parts of the heat exchange mechanism 20 are uniformly heated. The pressure stabilizing chamber 21 can be integrally cast and formed, and then the threaded pipe 211 is processed, or the pressure stabilizing chamber 21 is manufactured by adopting plates through stamping and welding, the threaded pipe 211 is manufactured separately, and the airtight detection is needed after the pressure stabilizing chamber 21 is manufactured through welding connection.

Preferably, the heat exchanging tube 22 has a circular tube structure, a plurality of heat conducting plates 221 are arranged along the outer peripheral side, the heat conducting plate 211 is connected to the outer wall of the heat exchanging tube 22 by welding, and the heat conducting plate 211 is a metal plate with a rectangular structure, so as to ensure that the heat exchanging mechanism 20 has good heat conducting performance and the welding performance between the heat conducting plate 221 and the heat exchanging tube 22, therefore, the heat exchanging tube 22 and the heat conducting plate 221 are made of the same metal material, such as copper alloy or aluminum alloy.

The specific implementation mode is as follows: when the waste heat recovery device is installed, the components of the heat exchange mechanism 20 are installed, the pipe joints 25 are installed on both ends of the heat exchange pipe 22, then the heat exchange pipe 22 is installed on the pressure stabilizing chamber 21 by the cooperation of the pipe joints 25 and the threaded pipe 211, and the same pressure stabilizer 21 is also installed on the other end of the heat exchange pipe 22. The connection of the two ends of the pipe joint 25; the nuts can be independently rotated to facilitate tightening. Then the assembled heat exchange mechanism 20 is placed into the exhaust pipe 10, two connecting pipes 23 penetrate through the side wall of the exhaust pipe 10, the connecting pipes 23 are provided with internal threads, and the heat glue pipe mechanism 20 is fixed in the middle of the exhaust pipe through being connected with threaded pipes 211 on the side wall of the pressure stabilizing chamber 21. The two exhaust pipes 10 are installed in the same manner as the hot glue pipe mechanism 20, and then the two exhaust pipes 10 are connected. And finally, connecting the waste heat recovery device with equipment. In operation, the exhaust gas of the equipment passes through the exhaust pipe 10, and the temperature is transferred to the water in the heat exchange mechanism 20 through the heat conduction plate 221, the heat exchange tube 22 and the parts of the pressure stabilizing chamber 21 which are equal to the exhaust gas, so as to heat the water.

The foregoing is only a preferred embodiment of the invention and is not intended to be the only or limiting embodiment of the invention. It should be understood by those skilled in the art that various changes and equivalent substitutions made herein may be made without departing from the scope of the invention as defined by the appended claims.

Claims

1. A waste heat recovery device, comprising:

the exhaust pipes (10) are arranged in an up-down overlapping mode, the exhaust pipes (10) are of a dumbbell structure, and the diameters of two ends of each exhaust pipe are larger than that of the middle section of each exhaust pipe;

heat exchange mechanism (20), all be equipped with in blast pipe (10) heat exchange mechanism (20), heat exchange mechanism (20) include a pair of surge chamber (21), surge chamber (21) are located respectively blast pipe (10) both ends, there are many hot exchange tubes (22) through threaded connection between surge chamber (21), hot exchange tube (22) with both ends surge chamber (21) intercommunication, surge chamber (21) all have connecting pipe (23) through threaded connection, connecting pipe (23) wear to locate blast pipe (10) lateral wall, be located two in the middle of the heat recovery unit connecting pipe (23) are connected in two of them pipelines of three-way pipe (24), another pipeline of three-way pipe (24) is equipped with the valve.

2. A heat recovery device according to claim 1, characterized in that the pressure maintaining chamber (21) has a cylindrical outer contour and a diameter smaller than the inner diameter of the middle section of the exhaust pipe (10).

3. A waste heat recovery device according to claim 1, characterized in that a pipe joint (25) is provided between the heat exchange pipe (22) and the pressure stabilizing chamber (21).

4. A waste heat recovery device according to claim 1, characterized in that the connecting pipe (23) is provided with a sealing ring (11) at the position passing through the exhaust pipe (10).

5. A waste heat recovery device according to claim 1, wherein the heat exchanging tube (22) has a circular tube structure with a plurality of heat conducting plates (221) arranged in a row along an outer peripheral side.

6. A waste heat recovery device according to claim 1, characterized in that a sealing gasket (12) is arranged between the exhaust pipes (10).

7. A waste heat recovery device according to claim 1, characterized in that the exhaust pipe (10) is provided with flanges at both ends.

8. The waste heat recovery device according to claim 1, wherein the pressure stabilizing chamber (21) is provided with a threaded pipe (211) corresponding to the installation positions of the heat exchange pipe (22) and the connecting pipe (23).