Heat transfer recycling equipment for chemical equipment
The heat transfer and recycling device with a spiral guide plate and nozzles extends gas discharge distance and contact time, improving chemical and heat absorption efficiency in chemical waste gases without increasing device size, using corrosion-resistant materials.
Patent Information
- Application Number
- CN202421014475.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Existing heat recovery systems for chemical waste gases, such as ammonia-containing tail gases, suffer from inefficient heat and substance recovery due to short spray lengths and rapid gas movement, leading to incomplete absorption and increased device size.
A heat transfer and recycling device with a spiral guide plate for exhaust gas flow, multiple nozzles for liquid distribution, and baffles to extend contact time and area, using stainless steel or aluminum alloy components for resistance to chemical corrosion.
Enhances heat and substance recovery by increasing contact time and area without occupying excessive space, effectively absorbing chemicals and heat while preventing gas ingress through liquid seals, thus optimizing space utilization and efficiency.
Smart Images
Figure CN222239539U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical production, in particular to heat transfer and recycling equipment for chemical equipment. Background Art
[0002] Chemical industry refers to chemical processes, chemical engineering and chemical industry, which mainly changes substances through chemical methods for the production of some products, such as medicines, fertilizers, coatings, fuel, plastics, rubber, etc. In the chemical production process, electric heating, steam heating, fuel heating and other settings are often used. The products, wastewater and waste gas after heating usually have high heat. If the heat in these substances is recovered for processing or daily life, it can reduce some costs. Therefore, heat recovery technology is also highly respected.
[0003] An ammonia-containing tail gas heat exchange device with application number 202322179339.X includes a heat exchange box, clean water is contained at the bottom of the heat exchange box, a partition is fixed inside the heat exchange box, and a heat absorption box is installed on one side of the partition. When the ammonia-containing tail gas enters the heat exchange box, the water spray head sprays the ammonia-containing tail gas, so that the clean water and the ammonia-containing tail gas are fully in contact, so that the clean water absorbs the ammonia tail gas and heat in the ammonia-containing tail gas, reduces the waste gas content of the ammonia-containing tail gas, and increases the heat absorption of the clean water, which is conducive to the full heat exchange of the ammonia-containing tail gas. An inclined heat absorption plate is fixed on the surface of the S-shaped part of the heat absorption tube to increase the residence time of the ammonia-containing tail gas in the heat absorption box, increase the heat absorption of the heat absorption tube and the clean water inside, so that the heat absorption plate and the heat absorption tube fully absorb heat, which is conducive to the clean water fully absorbing the heat in the ammonia-containing tail gas.
[0004] This technical solution absorbs part of the chemical waste in the exhaust gas by spraying liquid. This treatment method can be applied to the treatment of exhaust gases other than ammonia-containing exhaust gas by replacing different liquids. However, the spraying length of this technical solution is relatively short, and the exhaust gas enters the spray space and moves out of the spray space at a relatively fast speed, causing a lot of chemical waste to escape. If the length is increased, the size of the device will be larger. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a heat transfer and recycling device for chemical equipment to solve the technical problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat transfer and recycling device for chemical equipment, comprising a heat exchanger and a partition bin, a recovery bin is connected to the top of the partition bin, a distribution pipe is connected to the inside of the recovery bin, and a nozzle is connected to one side of the distribution pipe, a guide plate is fixed to the outer surface of the distribution pipe, connecting holes are provided on both sides of the bottom of the recovery bin and both sides of the top of the partition bin, and a baffle is fixed inside the partition bin.
[0007] By adopting the above technical scheme, the exhaust gas is made to rise along the spiral path through the spiral guide plate, and the distance of the exhaust gas discharge process is extended, which will not occupy too large an area and improve the space utilization rate. A plurality of nozzles are evenly distributed along the spiral line to the corresponding spiral rising exhaust gas, and then liquid is sprayed into the recovery bin through the nozzle to adsorb the chemical substances in the exhaust gas and absorb the heat in the exhaust gas. The liquid will subsequently descend along the spiral path under the influence of gravity and the guide plate, and contact with the subsequent exhaust gas to perform adsorption and heat absorption, thereby increasing the contact area and contact time, and being able to fully absorb the chemical substances and heat in the exhaust gas. Then, the liquid passes through the connecting hole into the partition bin, and is discharged through the baffle as the liquid level rises, and the liquid in the gap between the two baffles will form a water seal to prevent the exhaust gas from entering.
[0008] Furthermore, the guide plate is spiral-shaped.
[0009] By adopting the above technical solution, when exhaust gas enters, the spiral guide plate makes the exhaust gas rise along the spiral path, thereby extending the distance of the exhaust gas discharge process, not occupying too large an area, and improving space utilization. The subsequent liquid will subsequently descend along the spiral path under the influence of gravity and the guide plate, and come into contact with the subsequent exhaust gas to perform adsorption and heat absorption, thereby increasing the contact area and contact time, and being able to fully absorb the chemicals and heat in the exhaust gas.
[0010] Furthermore, a plurality of nozzles are provided, and the plurality of nozzles are equidistantly distributed along the spiral line.
[0011] By adopting the above technical solution, multiple nozzles are evenly distributed along the spiral line to the corresponding spiral rising exhaust gas, and then the liquid in the distribution pipe is sprayed into the recovery bin through the nozzle to absorb the chemical substances in the exhaust gas and absorb the heat in the exhaust gas.
[0012] Furthermore, two baffles are provided, and both baffles are in a circular ring shape.
[0013] By adopting the above technical solution, the liquid enters the partition chamber through the connecting hole. As the liquid level rises, the liquid passes through the baffle and enters the acid-alkali resistant pump. The liquid in the gap between the two baffles will form a water seal to prevent exhaust gas from entering.
[0014] Furthermore, the distribution pipe, nozzle, guide plate and baffle are all made of stainless steel or aluminum alloy.
[0015] By adopting the above technical solution, the distribution pipe, nozzle, guide plate and baffle made of stainless steel or aluminum alloy have good corrosion resistance and can avoid being corroded by chemical substances.
[0016] Furthermore, a plurality of the communicating holes are provided, and the plurality of communicating holes are distributed in a ring array.
[0017] By adopting the above technical solution, the liquid enters the partition chamber through the connecting holes, and the flow rate is increased by increasing the number of connecting holes, thereby avoiding blockage caused by excessive liquid.
[0018] Furthermore, an air inlet pipe is connected to the lower part of one side of the recovery bin, an exhaust pipe is connected to the upper part of the other side of the recovery bin, and a liquid inlet pipe is connected to the top of the distribution pipe.
[0019] By adopting the above technical solution, the exhaust gas enters the recovery bin through the air inlet pipe, and then rises through the exhaust pipe to enter the next process. At the same time, the liquid enters the distribution pipe through the liquid inlet pipe, and the external low-temperature medium enters from the right side of the heat exchanger, that is, the side away from the bracket. The low-temperature medium then undergoes heat exchange in the heat exchanger to heat up to become a high-temperature medium and is discharged from the left side of the heat exchanger, that is, the side close to the bracket.
[0020] Furthermore, a supporting foot is connected to the bottom of the heat exchanger, and the partition chamber is located above the heat exchanger. An acid- and alkali-resistant pump is installed at the bottom of the partition chamber, and an infusion tube is connected between the acid- and alkali-resistant pump and the heat exchanger.
[0021] By adopting the above technical solution, the acid-base resistant pump cooperates with the infusion tube to deliver the liquid into the heat exchanger for heat exchange. After the heat exchange is completed, the liquid is discharged from the right side of the bottom of the heat exchanger and enters the next process to recover the chemical substances in the liquid.
[0022] Furthermore, a bracket is fixed between the partition chamber and the heat exchanger.
[0023] By adopting the above technical solution, the partition bin and the recovery bin can be installed on the top of the heat exchanger through the bracket, thereby reducing the overall footprint of the equipment.
[0024] Furthermore, the number of the supporting legs is two to three.
[0025] By adopting the above technical solution, two supporting legs are used to support the heat exchanger, and three supporting frames can improve the supporting effect on the left side of the heat exchanger, thereby preventing the weight of the partition bin and the recovery bin from affecting the left side of the heat exchanger.
[0026] In summary, the utility model mainly has the following beneficial effects:
[0027] The utility model arranges a recovery bin, a distribution pipe, a nozzle, a guide plate, a connecting hole and a baffle, and the spiral guide plate allows the exhaust gas to rise along a spiral path, thereby extending the distance in the exhaust gas discharge process, not occupying too large an area and improving space utilization. A plurality of nozzles are equidistantly distributed along the spiral line to the exhaust gas rising in the corresponding spiral, and then liquid is sprayed into the recovery bin through the nozzle to adsorb the chemical substances in the exhaust gas and absorb the heat in the exhaust gas. The liquid will subsequently descend along the spiral path under the influence of gravity and the guide plate, and come into contact with the exhaust gas that enters subsequently to perform adsorption and heat absorption work, thereby increasing the contact area and contact time, and being able to fully absorb the chemical substances and heat in the exhaust gas. Then the liquid passes through the connecting hole into the partition bin, and as the liquid level rises, the liquid passes through the baffle and is discharged, and the liquid in the gap between the two baffles forms a water seal to prevent the exhaust gas from entering; the chemical substances in the exhaust gas can be fully adsorbed and the heat in the exhaust gas can be absorbed. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the utility model;
[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of the recycling bin of the utility model;
[0030] Figure 3 This is a schematic diagram of the cross-sectional structure of the distribution pipe of the utility model;
[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the partition bin of the utility model.
[0032] In the figure: 1. heat exchanger; 2. supporting foot; 3. bracket; 4. partition chamber; 5. recovery chamber; 6. air inlet pipe; 7. exhaust pipe; 8. liquid inlet pipe; 9. acid and alkali resistant pump; 10. infusion pipe; 11. distribution pipe; 12. nozzle; 13. guide plate; 14. connecting hole; 15. baffle. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0034] The following describes an embodiment of the utility model based on its overall structure.
[0035] Embodiment 1:
[0036] A heat transfer and recycling device for chemical equipment, such as Figure 1-Figure 4As shown, a heat exchanger 1 and a partition chamber 4 are included. A recovery chamber 5 is connected to the top of the partition chamber 4. A distribution pipe 11 is connected to the inside of the recovery chamber 5. A nozzle 12 is connected to one side of the distribution pipe 11. A plurality of nozzles 12 are provided. The plurality of nozzles 12 are evenly distributed along the spiral line. The plurality of nozzles 12 are evenly distributed along the spiral line toward the corresponding spiral rising exhaust gas. Then, the liquid in the distribution pipe 11 is sprayed into the recovery chamber 5 through the nozzle 12 to absorb the chemical substances in the exhaust gas and absorb the heat in the exhaust gas.
[0037] A guide plate 13 is fixed on the outer surface of the distribution pipe 11. The guide plate 13 is spiral-shaped. When the exhaust gas enters, the spiral guide plate 13 causes the exhaust gas to rise along a spiral path, thereby extending the distance of the exhaust gas discharge process, not occupying too large an area, and improving the space utilization rate. The subsequent liquid will subsequently fall along the spiral path under the influence of gravity and the guide plate 13, and contact with the subsequent exhaust gas to perform adsorption and heat absorption work, thereby increasing the contact area and contact time, and being able to fully absorb the chemical substances and heat in the exhaust gas.
[0038] Both sides of the bottom of the recovery bin 5 and both sides of the top of the partition bin 4 are provided with connecting holes 14, and a plurality of connecting holes 14 are provided, and the plurality of connecting holes 14 are distributed in a circular array, and the liquid passes through the connecting holes 14 and enters the partition bin 4;
[0039] A baffle 15 is fixed inside the partition chamber 4. Two baffles 15 are provided. Both baffles 15 are in a circular shape. The liquid passes through the baffle 15 and enters the acid- and alkali-resistant pump 9. The liquid in the gap between the two baffles 15 will form a water seal to prevent exhaust gas from entering. The distribution pipe 11, the nozzle 12, the guide plate 13 and the baffle 15 are all made of stainless steel or aluminum alloy materials to prevent chemical substances from causing corrosion to the structure.
[0040] See also Figure 1 and Figure 2 In the above embodiment, a support leg 2 is connected to the bottom of the heat exchanger 1, and two support legs 2 are provided. The partition chamber 4 is located above the heat exchanger 1. An acid-alkali resistant pump 9 is installed at the bottom of the partition chamber 4, which can transport liquid and is resistant to acid and alkali corrosion; a liquid infusion tube 10 is connected between the acid-alkali resistant pump 9 and the heat exchanger 1, an air inlet pipe 6 is connected to the bottom of one side of the recovery chamber 5, and an exhaust pipe 7 is connected to the top of the other side of the recovery chamber 5. The top of the distribution pipe 11 is connected to the liquid inlet pipe 8, and the exhaust gas enters the recovery chamber 5 through the air inlet pipe 6, and then the exhaust gas rises through the exhaust pipe 7 to enter the next process. At the same time, the liquid enters the distribution pipe 11 through the liquid inlet pipe 8, and the external low-temperature medium enters from the right side of the heat exchanger 1, that is, the side away from the bracket 3. Then the low-temperature medium undergoes heat exchange in the heat exchanger 1 and heats up to become a high-temperature medium and is discharged from the left side of the heat exchanger 1, that is, the side close to the bracket 3.
[0041] Embodiment 2:
[0042] Based on the above embodiment 1, refer to Figure 1 A bracket 3 is fixed between the partition bin 4 and the heat exchanger 1 , and the partition bin 4 and the recovery bin 5 can be installed on the top of the heat exchanger 1 to reduce the floor space. Three supporting legs 2 are provided to increase the support of the heat exchanger 1 .
[0043] The implementation principle of the utility model is as follows: first, the exhaust gas enters the recovery bin 5 through the air inlet pipe 6, and then the exhaust gas rises and enters the next process through the exhaust pipe 7, while the liquid enters the distribution pipe 11 through the liquid inlet pipe 8, and the external low-temperature medium enters from the right side of the heat exchanger 1, that is, the side away from the bracket 3, and then the low-temperature medium undergoes heat exchange in the heat exchanger 1 to heat up to become a high-temperature medium and is discharged from the left side of the heat exchanger 1, that is, the side close to the bracket 3;
[0044] When the exhaust gas enters, the spiral guide plate 13 causes the exhaust gas to rise along the spiral path, extending the distance of the exhaust gas discharge process, not occupying too large an area, and improving the space utilization rate. The multiple nozzles 12 are evenly distributed along the spiral line to the corresponding spiral rising exhaust gas. Then, the liquid in the distribution pipe 11 is sprayed into the recovery bin 5 through the nozzle 12 to absorb the chemical substances in the exhaust gas and absorb the heat in the exhaust gas. The liquid will subsequently fall along the spiral path under the influence of gravity and the guide plate 13, and contact with the exhaust gas that enters later to perform adsorption and heat absorption work, thereby increasing the contact area and contact time, and being able to fully absorb the chemical substances and heat in the exhaust gas.
[0045] Then the liquid passes through the connecting hole 14 and enters the partition chamber 4. As the liquid level rises, the liquid passes through the baffle 15 and enters the acid-alkali resistant pump 9. The liquid in the gap between the two baffles 15 forms a water seal to prevent exhaust gas from entering.
[0046] Afterwards, the liquid is delivered to the heat exchanger 1 for heat exchange through the acid-base resistant pump 9 and the infusion tube 10. After the heat exchange, the liquid is discharged from the right bottom of the heat exchanger 1 and enters the next process to recover the chemical substances in the liquid.
[0047] It should be noted that the liquids used for adsorbing chemicals and absorbing heat described in this technical solution include but are not limited to water. For example, water-soluble substances such as ammonia and formaldehyde can be adsorbed and absorb heat by water, and water-insoluble chemicals can be replaced by other liquids, but liquids that do not produce solid by-products should be selected to avoid pipeline blockage.
[0048] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A heat transfer and recycling device for chemical equipment, comprising a heat exchanger (1) and a partition chamber (4), characterized in that: The top of the partition bin (4) is connected to a recovery bin (5), and the inside of the recovery bin (5) is connected to a distribution pipe (11), and one side of the distribution pipe (11) is connected to a nozzle (12), a guide plate (13) is fixed to the outer surface of the distribution pipe (11), both sides of the bottom of the recovery bin (5) and both sides of the top of the partition bin (4) are provided with connecting holes (14), and a baffle (15) is fixed inside the partition bin (4).
2. The heat transfer and recycling equipment for chemical equipment according to claim 1, characterized in that: The guide plate (13) is spiral-shaped.
3. The heat transfer and recycling equipment for chemical equipment according to claim 1, characterized in that: A plurality of the nozzles (12) are provided, and the plurality of nozzles (12) are distributed at equal distances along the spiral line.
4. The heat transfer and recycling equipment for chemical equipment according to claim 1, characterized in that: Two baffles (15) are provided, and both baffles (15) are in the shape of a circular ring.
5. The heat transfer and recycling equipment for chemical equipment according to claim 4, characterized in that: The distribution pipe (11), the nozzle (12), the guide plate (13) and the baffle (15) are all made of stainless steel or aluminum alloy.
6. The heat transfer and recycling equipment for chemical equipment according to claim 1, characterized in that: A plurality of the communicating holes (14) are provided, and the plurality of communicating holes (14) are distributed in a ring array.
7. The heat transfer and recycling equipment for chemical equipment according to claim 1, characterized in that: An air inlet pipe (6) is connected to the bottom of one side of the recovery bin (5), and an exhaust pipe (7) is connected to the top of the other side of the recovery bin (5); and a liquid inlet pipe (8) is connected to the top of the distribution pipe (11).
8. The heat transfer and recycling equipment for chemical equipment according to claim 1, characterized in that: The bottom of the heat exchanger (1) is connected to a support foot (2), and the partition chamber (4) is located above the heat exchanger (1). An acid- and alkali-resistant pump (9) is installed at the bottom of the partition chamber (4), and a liquid infusion tube (10) is connected between the acid- and alkali-resistant pump (9) and the heat exchanger (1).
9. The heat transfer and recycling equipment for chemical equipment according to claim 8, characterized in that: A bracket (3) is fixed between the partition chamber (4) and the heat exchanger (1).
10. The heat transfer and recycling equipment for chemical equipment according to claim 8, characterized in that: The supporting legs (2) are provided with two to three legs.