Ventilation air methane waste heat recovery device

Abstract

The utility model provides a ventilation air methane waste heat recovery device and relates to the field of ventilation air methane waste heat recovery. The bottom end face of a cover plate is fixedly connected with an insertion pipe of an annular structure, the diameter of the insertion pipe is smaller than that of the cover plate, the interior of the cover plate is fixedly connected with an air inlet pipe and an air outlet pipe, and the bottom end of the air inlet pipe and the bottom end of the air outlet pipe are fixedly connected with a circulating pipe; the problems that when existing ventilation air methane is subjected to heat recovery, ventilation air methane generally needs to be circulated in cold liquid through a circulation pipeline, waste heat recovery is completed through heat exchange, the heat exchange area of the liquid and the ventilation air methane needs to be increased, and the size of the device needs to be reduced comprehensively to increase the practicability of the device are solved. By arranging the spiral circulating pipe fixedly connected to the bottom ends of the gas inlet pipe and the gas outlet pipe, gas supplied through the gas inlet pipe can be rapidly circulated, the occupied area in a workshop can be reduced through a spiral structure, and space occupation can be reduced while efficient heat exchange can be achieved.

Description

TECHNICAL FIELD

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

[0002] At present, the waste air, also called coal mine air exhaust gas, refers to the coal mine gas with the methane concentration less than 0.75%. The waste air is the waste gas with certain heat discharged by the ventilation system in the coal mine production process, and the main components include oxygen, nitrogen, water vapor and a small amount of harmful gas (such as gas, carbon dioxide, etc.), the temperature of the waste air is usually higher than the ambient temperature, and has certain heat energy value.

[0003] However, when the waste air is recycled, the circulating pipeline is generally used to circulate the waste air in the cold liquid, and the heat recovery is completed by heat exchange, so it is necessary to consider increasing the heat exchange area of the liquid and the waste air, and to comprehensively consider reducing the device volume to increase the practicability, so a waste air heat recovery device is needed.

[0004] Therefore, in view of the above-mentioned scheme in the actual production and implementation, the lack of place is corrected, improved, and the spirit and concept of seeking good are followed, and the professional knowledge, experience is assisted, and after many parties are clever, the utility model is created, and a waste air heat recovery device is provided, which is used to solve the problem that the waste air is recycled, the circulating pipeline is generally used to circulate the waste air in the cold liquid, and the heat recovery is completed by heat exchange, and the heat exchange area of the liquid and the waste air needs to be considered, and the device volume needs to be considered to reduce the practicability. Utility model content

[0005] The utility model provides a waste air heat recovery device, which solves the problem that the waste air in the prior art is recycled, the circulating pipeline is generally used to circulate the waste air in the cold liquid, and the heat recovery is completed by heat exchange, and the heat exchange area of the liquid and the waste air needs to be considered, and the device volume needs to be considered to reduce the practicability.

[0006] The technical scheme of the utility model is achieved in the following way: a kind of idle wind waste heat recovery device, it includes: cover plate, the cross section of the cover plate is circular structure, second mounting plate is fixedly connected on the outer side of cover plate, the cross section of second mounting plate is circular structure, and the diameter of second mounting plate is greater than cover plate, and the inside of second mounting plate is circular array and is provided with through hole, fixed bolt is installed in the inside of the through hole, hanging ring is fixedly connected on the top end surface of cover plate, and hanging ring is used to be connected with the hoisting machinery of outside, and annular structure's insertion tube is fixedly connected on the bottom end surface of cover plate, the diameter of insertion tube is less than the diameter of cover plate, and the inside of cover plate is fixedly connected with air inlet pipe and air outlet pipe, the bottom end of air inlet pipe and air outlet pipe is fixedly connected with circulating pipe, and circulating pipe is spiral structure:

[0007] As a preferred embodiment, the cover plate is located directly above the housing, the main body of the housing is a top one-way opening structure, the outer periphery of the housing is fixedly connected with a liquid inlet pipe, and the outer periphery of the housing is further fixedly connected with a liquid outlet pipe on the right side.

[0008] As a preferred embodiment, the height of the liquid outlet pipe is lower than the height of the liquid inlet pipe, and the flanges are fixedly connected to the sides of the liquid inlet pipe and the liquid outlet pipe away from the housing.

[0009] As a preferred embodiment, the top end of the outer periphery of the housing is fixedly connected with a first mounting plate, and the structure of the first mounting plate is consistent with that of the second mounting plate.

[0010] As a preferred embodiment, the second mounting plate is connected to the first mounting plate by the fixed bolt.

[0011] As a preferred embodiment, the bottom end surface of the housing is fixedly connected with a support frame, the cross section of the support frame is annular structure, and the inside of the support frame is circular array and is provided with a through slot, the bottom end surface of the support frame is fixedly connected with a base plate, the cross section of the base plate is circular structure, and the diameter of the base plate is greater than the support of the support frame, the base plate and the support frame jointly constitute a support structure for the housing, and the inside of the base plate is circular array and is provided with a through slot, which is a mounting slot.

[0012] After using the above technical scheme, the utility model has the following beneficial effects:

[0013] 1、In the utility model, the spiral circulating pipe fixedly connected to the bottom end of the air inlet pipe and the air outlet pipe is provided, which can not only realize rapid circulation of the gas supplied through the air inlet pipe, but also reduce the area occupation in the workshop through the spiral structure, so that efficient heat exchange can be realized while reducing the space occupation.

[0014] 2. The utility model discloses, through being provided with the bushing of fixed connection on the bottom end surface of cover plate, when the cover plate is assembled to the top of shell, can be inserted into the internal position of shell through the bushing of fixed connection on the bottom end surface of cover plate, and the liquid in the shell can be prevented from spilling through the sealing of bushing, and the high sealing property can also effectively improve the heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor intensity, also can obtain other drawings according to these drawings.

[0016] Figure 1 It is the front side view structural schematic diagram of the waste heat recovery device of the utility model after splitting;

[0017] Figure 2 It is the combination structural schematic diagram of the waste heat recovery device of the utility model;

[0018] Figure 3 It is the left view structural schematic diagram of the waste heat recovery device of the utility model;

[0019] Figure 4 It is the cover plate and second mounting plate combination structural schematic diagram of the waste heat recovery device of the utility model;

[0020] Figure 5 It is the shell and first mounting plate combination structural schematic diagram of the waste heat recovery device of the utility model;

[0021] Figure 6 It is the front view structural schematic diagram of the waste heat recovery device of the utility model after splitting;

[0022] In the drawing, 1, shell;101, inlet pipe;102, flange plate;103, outlet pipe;104, first mounting plate;2, support frame;201, base plate;202, installation slot;3, cover plate;301, second mounting plate;302, fixed peg;303, hanging ring;304, air inlet pipe;305, circulating pipe;306, air outlet pipe;307, bushing. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] As shown in the drawings, Figures 1-6 A kind of exhaust air waste heat recovery device includes: cover plate 3, the section of cover plate 3 is circular structure, the outside of cover plate 3 is fixedly connected with second mounting plate 301, the section of second mounting plate 301 is circular structure, and the diameter of second mounting plate 301 is greater than cover plate 3, and the inside of second mounting plate 301 is annular array and is equipped with through hole, the inside of the through hole is equipped with fixed bolt 302, the top end surface of cover plate 3 is fixedly connected with hanging ring 303, hanging ring 303 is used to be connected with the hoisting machinery of outside, and the bottom end surface of cover plate 3 is fixedly connected with the tubular structure of insertion pipe 307, the diameter of insertion pipe 307 is less than the diameter of cover plate 3, the inside of cover plate 3 is fixedly connected with air inlet pipe 304 and air outlet pipe 306, the bottom end of air inlet pipe 304 and air outlet pipe 306 is fixedly connected with circulating pipe 305, and circulating pipe 305 is spiral structure.

[0025] Wherein, cover plate 3 is located in the position directly above shell 1, the main body of shell 1 is top one-way opening structure, the outer circumferential surface of shell 1 is fixedly connected with liquid inlet pipe 101, and the outer circumferential surface right side of shell 1 is also fixedly connected with liquid outlet pipe 103, the height of liquid outlet pipe 103 is lower than the height of liquid inlet pipe 101, the side of liquid inlet pipe 101 and liquid outlet pipe 103 away from shell 1 is fixedly connected with flange 102, the bottom end surface of support frame 2 is fixedly connected with base plate 201, the section of base plate 201 is circular structure, and the diameter of base plate 201 is greater than the support of support frame 2, and base plate 201 and support frame 2 jointly form the support structure for shell 1, and the inside of base plate 201 is annular array and is equipped with through slot, and the through slot is installation groove 202.

[0026] Wherein, the top end of the outer circumferential surface of shell 1 is fixedly connected with first mounting plate 104, the structure of first mounting plate 104 is identical with the structure of second mounting plate 301, and second mounting plate 301 and first mounting plate 104 are connected by fixed bolt 302, the bottom end surface of shell 1 is fixedly connected with support frame 2, the section of support frame 2 is annular structure, and the inside of support frame 2 is annular array and is equipped with through slot.

[0027] In use, when the waste heat recovery operation is performed, the hoisting machine in the workshop is used to connect the hanging ring 303 fixedly connected to the top surface of the cover plate 3, and simultaneously, the air inlet pipe 304 and the air outlet pipe 306 fixedly connected to the inside of the cover plate 3 and the circulating pipe 305 are inserted into the inside of the shell 1, and the second mounting plate 301 arranged outside the cover plate 3 is attached to the first mounting plate 104 fixedly connected in the shell 1, at this time, the sealing connection between the shell 1 and the cover plate 3 is realized by sequentially assembling the plurality of fixing bolts 302 to the inside of the first mounting plate 104 and the second mounting plate 301.

[0028] Then, the external water pump is connected to the flange plate 102 fixedly connected to the outside of the liquid inlet pipe 101, and simultaneously, the external waste air fan is connected to the air inlet pipe 304 arranged in the cover plate 3, so that the waste air is spirally circulated in the circulating pipe 305 fixedly connected to the bottom surface of the air inlet pipe 304, and simultaneously, the circulating pipe 305 is used to perform heat exchange operation with the liquid entering the inside of the shell 1, the gas after heat exchange can be discharged through the air outlet pipe 306, and the heated liquid after heat exchange can be discharged through the liquid outlet pipe 103 to complete the heat exchange.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified and limited, it should be explained that the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, or indirect connection through an intermediate medium, and the specific meaning of the above terms can be understood by the person skilled in the art according to the specific circumstances.

[0030] The above is only a preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A waste heat recovery device of a blast furnace, characterized by comprising: Including the cover plate (3), the cross section of the cover plate (3) is circular structure, the outer side of the cover plate (3) is fixedly connected with the second mounting plate (301), the cross section of the second mounting plate (301) is circular structure, and the diameter of the second mounting plate (301) is greater than the cover plate (3), the inside of the second mounting plate (301) is circularly arranged with through holes, the inside of the through hole is provided with a fixing bolt (302), the top surface of the cover plate (3) is fixedly connected with a hanging ring (303), the hanging ring (303) is used for being connected with the external hoisting machinery, and the bottom surface of the cover plate (3) is fixedly connected with an annular structure of the insertion tube (307), the diameter of the insertion tube (307) is less than the diameter of the cover plate (3), the inside of the cover plate (3) is fixedly connected with the air inlet pipe (304) and the air outlet pipe (306), the bottom end of the air inlet pipe (304) and the air outlet pipe (306) is fixedly connected with the circulating pipe (305), and the circulating pipe (305) is a spiral structure.

2. A waste heat recovery device according to claim 1, wherein The cover plate (3) is located above the housing (1), the main body of the housing (1) is a top one-way opening structure, the outer peripheral surface of the housing (1) is fixedly connected with the liquid inlet pipe (101), and the outer peripheral surface of the housing (1) is further fixedly connected with the liquid outlet pipe (103).

3. A waste heat recovery device according to claim 2, wherein The height of the liquid outlet pipe (103) is lower than the height of the liquid inlet pipe (101), and the flange (102) is fixedly connected to the side of the liquid inlet pipe (101) and the liquid outlet pipe (103) away from the housing (1).

4. A waste heat recovery device according to claim 3, wherein The outer peripheral surface of the housing (1) is fixedly connected with the first mounting plate (104), and the structure of the first mounting plate (104) is consistent with the structure of the second mounting plate (301).

5. A waste heat recovery device according to claim 4, wherein The second mounting plate (301) and the first mounting plate (104) are connected by the fixing bolt (302).

6. A waste heat recovery device according to claim 3, wherein The bottom surface of the housing (1) is fixedly connected with the support frame (2), the cross section of the support frame (2) is annular structure, and the inside of the support frame (2) is circularly arranged with through grooves.

7. A waste heat recovery device according to claim 6, wherein The bottom surface of the support frame (2) is fixedly connected with the base plate (201), the cross section of the base plate (201) is circular structure, and the diameter of the base plate (201) is greater than the support of the support frame (2), the base plate (201) and the support frame (2) jointly form a support structure for the housing (1), and the inside of the base plate (201) is circularly arranged with through grooves, which are installation grooves (202).

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