Heat exchange device for waste heat recovery of surge bin

Abstract

The utility model discloses a surge bin waste heat recovery heat exchange device which comprises a surge bin body, an exhaust pipe is arranged on the right side of the top of the surge bin body, one side of the exhaust pipe is communicated with a negative pressure fan, one side of the negative pressure fan is communicated with an exhaust pipe, one side of the exhaust pipe is communicated with a flow dividing pipe, and the flow dividing pipe is communicated with an exhaust pipe. And one side of the flow dividing pipe communicates with a fixing pipe, and one side of the fixing pipe communicates with a first heat exchange pipe. Materials are stored in the inner cavity of the surge bin body, then the negative pressure fan is started, gas is sucked in through the suction pipe, and then the gas is discharged into the inner cavity of the first heat exchange pipe through the flow dividing pipe and the fixing pipe, so that heat exchange work is conducted, the temperature of the gas in the inner cavity of the first heat exchange pipe is gradually increased, and heat exchange efficiency is improved. And then the gas is exhausted into the inner cavity of the second heat exchange pipe through the heat preservation pipe, so that heat is transferred into water, then the gas is exhausted into the water, so that the high-temperature gas makes contact with the water, heat exchange work is conducted, and waste heat recovery work is conveniently conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a heat exchange device for waste heat recovery of a buffer bin. Background Technique

[0002] Waste heat refers to the sensible heat and latent heat that are not reasonably utilized in the original design of energy-consuming devices in operating industrial enterprises due to limitations such as history, technology, and concept. It includes waste heat from high-temperature exhaust gas, cooling medium, waste steam and wastewater, high-temperature products and furnace slag, chemical reaction waste heat, waste heat from combustible waste gas, liquid waste and waste materials, etc.

[0003] Some high-temperature materials need to be placed in the inner cavity of the buffer bin for buffering, and can only be stored after their temperature drops. However, the existing buffer bins do not have the function of waste heat recovery during use, resulting in direct heat loss, which is not conducive to resource conservation and cannot meet the use requirements. For this reason, we propose a heat exchange device for waste heat recovery of a buffer bin. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a heat exchange device for waste heat recovery of a buffer bin, which has the advantages of convenient use, and solves the problems that the existing buffer bins do not have the function of waste heat recovery during use, resulting in direct heat loss, which is not conducive to resource conservation and cannot meet the use requirements.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat exchange device for waste heat recovery of a buffer bin, including a buffer bin body, a suction pipe is arranged on the right side of the top of the buffer bin body, a negative pressure fan is communicated with one side of the suction pipe, an exhaust pipe is communicated with one side of the negative pressure fan, a shunt pipe is communicated with one side of the exhaust pipe, a fixed pipe is communicated with one side of the shunt pipe, a first heat exchange pipe is communicated with one side of the fixed pipe, a heat preservation pipe is communicated with one side of the first heat exchange pipe, a heat preservation box is fixedly connected to the surface of the heat preservation pipe, and a second heat exchange pipe is communicated with one side of the heat preservation pipe.

[0006] Preferably, a first solenoid valve is communicated with the left side of the top of the heat preservation box, a water supply pipe is communicated with the top of the first solenoid valve, a buzzer and a PLC controller are fixedly connected to the top of the front of the heat preservation box in sequence from left to right, a second solenoid valve is communicated with the bottom right side of the heat preservation box, a liquid level sensor is fixedly connected to the right side of the inner cavity of the heat preservation box, and a temperature sensor is fixedly connected to the bottom of the inner cavity of the heat preservation box.

[0007] Preferably, hollow pipes are communicated with the central axes of the top and the bottom of the buffer bin body, and a cover plate is threadedly connected to one side of the hollow pipe.

[0008] Preferably, one side of the negative pressure fan is fixedly connected with a fixed seat, and the bottom of the fixed seat is fixedly connected with the buffer bin body.

[0009] Preferably, a one-way valve is communicated with the right side of the top of the heat preservation box, and a drain pipe is communicated with the right side of the second electromagnetic valve.

[0010] Preferably, support legs are fixedly connected to the four corners of the bottom of the buffer bin body and the heat preservation box, and a movable hole is formed in the top of the heat preservation box.

[0011] Preferably, the PLC controller is bidirectionally electrically connected with a liquid level sensor and a temperature sensor, and the output end of the PLC controller is unidirectionally electrically connected with a negative pressure fan, a first electromagnetic valve, a second electromagnetic valve and a buzzer.

[0012] Compared with the prior art, the utility model provides a heat exchange device for recovering waste heat of a buffer bin, and has the following beneficial effects:

[0013] 1. In the utility model, materials are stored in the inner cavity of the buffer bin body, then the negative pressure fan is started, gas is drawn in through the air extraction pipe, and then the gas is discharged into the inner cavity of the first heat exchange pipe through the shunt pipe and the fixed pipe, so as to carry out heat exchange work, so that the temperature of the gas in the inner cavity of the first heat exchange pipe gradually rises, and then the gas is discharged into the inner cavity of the second heat exchange pipe through the heat preservation pipe, so that the heat is transferred to the water, and then the gas is discharged into the water to make the high-temperature gas contact with the water, so as to carry out heat exchange work, which is convenient for waste heat recovery work.

[0014] 2. In the utility model, the PLC controller sets the liquid level value range and the temperature value. After the temperature sensor detects that the temperature value is the same as the set value, the PLC controller will control the second electromagnetic valve to open, and then discharge the water. When the water level drops to the lowest set liquid level value, the second electromagnetic valve will be controlled to close, and at the same time, the first electromagnetic valve will be opened, and the water will be discharged into the inner cavity of the heat preservation box through the water supply pipe. After the liquid level sensor detects that the liquid level value is the same as the set highest liquid level value, the first electromagnetic valve will be controlled to close, so as to automatically complete the water changing work, which has a high degree of intelligence. At the same time, the buzzer will be controlled to work, which is convenient to remind the staff that the water changing work is in progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a three-dimensional structural diagram of the utility model;

[0017] Figure 3 is a sectional structural diagram of the buffer bin body of the utility model;

[0018] Figure 4 is a sectional structural diagram of the heat preservation box of the utility model.

[0019] In the figure: 1. Buffer bin body; 2. Exhaust pipe; 3. Negative pressure fan; 4. Exhaust pipe; 5. Diverging pipe; 6. Fixed pipe; 7. First heat exchange pipe; 8. Heat preservation pipe; 9. Second heat exchange pipe; 10. Liquid level sensor; 11. Heat preservation box; 12. First solenoid valve; 13. Tap water pipe; 14. Check valve; 15. Buzzer; 16. PLC controller; 17. Second solenoid valve; 18. Drain pipe; 19. Temperature sensor. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments. Embodiment 1:

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in, the present invention provides a heat exchange device for recovering waste heat from a buffer bin, including a buffer bin body 1. A suction pipe 2 is arranged on the right side of the top of the buffer bin body 1. One side of the suction pipe 2 is communicated with a negative pressure fan 3. One side of the negative pressure fan 3 is communicated with an exhaust pipe 4. One side of the exhaust pipe 4 is communicated with a diverging pipe 5. One side of the diverging pipe 5 is communicated with a fixed pipe 6. One side of the fixed pipe 6 is communicated with a first heat exchange pipe 7. One side of the first heat exchange pipe 7 is communicated with a heat preservation pipe 8. A heat preservation box 11 is fixedly connected to the surface of the heat preservation pipe 8. One side of the heat preservation pipe 8 is communicated with a second heat exchange pipe 9. Hollow pipes are communicated with the central axes of the top and bottom of the buffer bin body 1, and a cover plate is threadedly connected to one side of the hollow pipe. A fixed seat is fixedly connected to one side of the negative pressure fan 3, and the bottom of the fixed seat is fixedly connected to the buffer bin body 1. Support legs are fixedly connected to the four corners of the bottom of the buffer bin body 1 and the heat preservation box 11. An activity hole is opened at the top of the heat preservation box 11.

[0023] Specific functions of this technical solution: Store the materials in the inner cavity of the buffer bin body 1, then start the negative pressure fan 3, draw in the gas through the air extraction pipe 2, and then discharge the gas into the inner cavity of the first heat exchange pipe 7 through the shunt pipe 5 and the fixed pipe 6, so as to carry out the heat exchange work, making the temperature of the gas in the inner cavity of the first heat exchange pipe 7 gradually rise. Then, discharge the gas into the inner cavity of the second heat exchange pipe 9 through the heat preservation pipe 8, making the heat transfer to the water. Then, the gas will also be discharged into the water so that the high-temperature gas contacts the water, thereby carrying out the heat exchange work, which is convenient for the waste heat recovery work. Embodiment 2:

[0024] On the basis of Embodiment 1, as shown in Figure 1 , Figure 2 and Figure 4 , the left side of the top of the heat preservation box 11 is communicated with a first electromagnetic valve 12, the top of the first electromagnetic valve 12 is communicated with a tap water pipe 13, the top of the front of the heat preservation box 11 is fixedly connected with a buzzer 15 and a PLC controller 16 in sequence from left to right, the bottom of the right side of the heat preservation box 11 is communicated with a second electromagnetic valve 17, a liquid level sensor 10 is fixedly connected to the right side of the inner cavity of the heat preservation box 11, a temperature sensor 19 is fixedly connected to the bottom of the inner cavity of the heat preservation box 11, the right side of the top of the heat preservation box 11 is communicated with a check valve 14, the right side of the second electromagnetic valve 17 is communicated with a drain pipe 18, the PLC controller 16 is bidirectionally electrically connected with the liquid level sensor 10 and the temperature sensor 19, and the output end of the PLC controller 16 is unidirectionally electrically connected with the negative pressure fan 3, the first electromagnetic valve 12, the second electromagnetic valve 17 and the buzzer 15.

[0025] Specific functions of this technical solution: Set the liquid level value range and temperature value through the PLC controller 16. After the temperature sensor 19 detects that the temperature value is the same as the set value, the PLC controller 16 will control the second electromagnetic valve 17 to open, and then drain the water. When the water level drops to the lowest set liquid level value, it will control the second electromagnetic valve 17 to close, and at the same time open the first electromagnetic valve 12, and drain the water into the inner cavity of the heat preservation box 11 through the tap water pipe 13. After the liquid level sensor 10 detects that the liquid level value is the same as the set highest liquid level value, it will control the first electromagnetic valve 12 to close, thus automatically completing the water change work, making the degree of intelligence high. At the same time, it will also control the buzzer 15 to work, which is convenient to remind the staff that the water change work is in progress.

[0026] Working principle: Place the material in the inner cavity of the buffer bin body 1, then start the negative pressure fan 3, suck in the gas through the suction pipe 2, and then discharge the gas into the inner cavity of the first heat exchange pipe 7 through the shunt pipe 5 and the fixed pipe 6, so as to carry out heat exchange work, causing the temperature of the gas in the inner cavity of the first heat exchange pipe 7 to gradually rise. Then, discharge the gas into the inner cavity of the second heat exchange pipe 9 through the heat preservation pipe 8, enabling the heat to be transferred to the water. Then, the gas will also be discharged into the water so that the high-temperature gas contacts the water, thereby carrying out heat exchange work, facilitating the waste heat recovery work;

[0027] Set the liquid level value range and temperature value through the PLC controller 16. After the temperature sensor 19 detects that the temperature value is the same as the set value, the PLC controller 16 will control the second solenoid valve 17 to open, and then discharge the water. When the water level drops to the lowest set liquid level value, it will control the second solenoid valve 17 to close, and at the same time open the first solenoid valve 12 to discharge the water into the inner cavity of the heat preservation box 11 through the water supply pipe 13. After the liquid level sensor 10 detects that the liquid level value is the same as the highest set liquid level value, it will control the first solenoid valve 12 to close, thus automatically completing the water change work, making the degree of intelligence high. At the same time, it will also control the buzzer 15 to work, facilitating the reminder to the staff that the water change work is in progress.

[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangements of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0029] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the best mode currently contemplated for carrying out the present utility model or those features that are not relevant to implementing the present utility model).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A heat exchange device for waste heat recovery of a buffer bin, comprising a buffer bin body (1), characterized in that: On the right side of the top of the buffer bin body (1), an air extraction pipe (2) is provided. One side of the air extraction pipe (2) is communicated with a negative pressure fan (3). One side of the negative pressure fan (3) is communicated with an exhaust pipe (4). One side of the exhaust pipe (4) is communicated with a shunt pipe (5). One side of the shunt pipe (5) is communicated with a fixed pipe (6). One side of the fixed pipe (6) is communicated with a first heat exchange pipe (7). One side of the first heat exchange pipe (7) is communicated with a heat preservation pipe (8). The surface of the heat preservation pipe (8) is fixedly connected with a heat preservation box (11). One side of the heat preservation pipe (8) is communicated with a second heat exchange pipe (9).

2. The heat exchange device for waste heat recovery of a buffer bin according to claim 1, wherein: On the left side of the top of the heat preservation box (11), a first electromagnetic valve (12) is communicated. The top of the first electromagnetic valve (12) is communicated with a water supply pipe (13). On the top of the front surface of the heat preservation box (11), a buzzer (15) and a PLC controller (16) are fixedly connected in sequence from left to right. On the bottom right side of the heat preservation box (11), a second electromagnetic valve (17) is communicated. On the right side of the inner cavity of the heat preservation box (11), a liquid level sensor (10) is fixedly connected. On the bottom of the inner cavity of the heat preservation box (11), a temperature sensor (19) is fixedly connected.

3. A heat exchange device for waste heat recovery of a buffer bin according to claim 1, characterized in that: At the central axes of the top and bottom of the buffer bin body (1), hollow pipes are communicated, and a cover plate is threadedly connected to one side of the hollow pipes.

4. A heat exchange device for waste heat recovery of a buffer bin according to claim 1, characterized in that: One side of the negative pressure fan (3) is fixedly connected with a fixed seat, and the bottom of the fixed seat is fixedly connected with the buffer bin body (1).

5. The heat exchange device for waste heat recovery of a buffer bin according to claim 2, characterized in that: On the right side of the top of the heat preservation box (11), a one-way valve (14) is communicated. On the right side of the second electromagnetic valve (17), a drain pipe (18) is communicated.

6. The heat exchange device for waste heat recovery of a buffer bin according to claim 1, wherein: At the four corners of the bottoms of the buffer bin body (1) and the heat preservation box (11), support legs are fixedly connected. An activity hole is formed in the top of the heat preservation box (11).

7. A heat exchange device for waste heat recovery of a buffer bin according to claim 2, characterized in that: The PLC controller (16) is bidirectionally electrically connected with the liquid level sensor (10) and the temperature sensor (19). The output end of the PLC controller (16) is unidirectionally electrically connected with the negative pressure fan (3), the first electromagnetic valve (12), the second electromagnetic valve (17), and the buzzer (15).

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