Waste heat recovery evaporation system

Abstract

The utility model discloses a waste heat recovery evaporation system, and relates to the technical field of waste heat recovery, the waste heat recovery evaporation system comprises a preheating tank, a heat preservation tank A is fixedly arranged on the peripheral surface of the preheating tank, one end of the preheating tank is connected with a separation tank through a pipeline, the separation tank is located in a heat preservation tank B, and the peripheral surface of one end of the separation tank is connected with a waste heat storage tank through a pipeline; a circulation assembly is arranged between the heat preservation tank A and the heat preservation tank B through a pipeline and comprises a circulation tank communicated with the heat preservation tank A through a pipeline, the other end of the circulation tank is connected with the heat preservation tank B through a pipeline, and a circulation fan is fixedly arranged on the side, away from the flow guide pipe, of the sealing block. A layer of thermal barrier is formed outside the tank body, heat conduction from the preheating tank and the separation tank to the outside is reduced, the speed of heat dissipation through the tank body is reduced, heat stability in the tank body is guaranteed, materials are maintained to react at a proper temperature, and the situation that the reaction time of the materials is prolonged due to heat dissipation is avoided.

Description

Technical Field

[0001] This application relates to the field of waste heat recovery technology, and in particular to a waste heat recovery evaporation system. Background Technology

[0002] Heat recovery systems are technologies that effectively utilize waste heat and convert it into usable energy. In today's society, energy resources are becoming increasingly scarce, and environmental pollution is becoming more and more serious. Therefore, heat recovery systems have become an important energy-saving and environmentally friendly technology.

[0003] Furthermore, existing Chinese patent publication number CN221725001U discloses a stable evaporative waste heat recovery system. This device recovers heat by setting up a waste heat recovery unit, and the recovered heat is used on some working fluids to realize energy utilization. This device preheats the material by injecting steam into the heater. The steam valve is controlled by a liquid temperature sensor in the separator. In automatic control, steam enters the steam preheater of the raw material liquid. The steam valve only opens when there is flow of liquid in the pipe. The opening size is based on the temperature of the liquid in the pipe, controlling the temperature of the liquid when it enters the separator, ensuring the stable operation of the compressor and the thermal balance of the entire system. After the material enters the heater, the heat inside the heater will dissipate to the outside through the tank, resulting in heat loss and increasing the preheating time of the material. At the same time, the temperature of the liquid in the separator tank will also dissipate through the tank, affecting the temperature rise time and the efficiency of material conversion. Therefore, this solution proposes a waste heat recovery evaporation system. Utility Model Content

[0004] To address the issue of heat loss from the tank body affecting the reaction time of internal materials, this application provides a waste heat recovery evaporation system.

[0005] The waste heat recovery evaporation system provided in this application adopts the following technical solution:

[0006] A waste heat recovery evaporation system includes a preheating tank, an insulated tank A fixedly mounted on the outer circumferential surface of the preheating tank, a separation tank connected to one end of the preheating tank via a pipe, the separation tank being located inside the insulated tank B, a waste heat storage tank connected to the outer circumferential surface of one end of the separation tank via a pipe, a circulation assembly connected between the insulated tank A and the insulated tank B via a pipe, the circulation assembly including a circulation tank connected to the insulated tank A via a pipe, the other end of the circulation tank connected to the insulated tank B via a pipe, a sealing block welded to one side of the circulation tank, a guide pipe fixedly connected to one side of the sealing block inside the circulation tank, a connecting block fixedly connected to the outer circumferential surface of the guide pipe, an electric push rod fixedly connected to the bottom of the connecting block, an extension pipe sleeved with the bottom end of the guide pipe fixedly connected to the telescopic end of the electric push rod, a circulation fan fixedly mounted on the side of the sealing block away from the guide pipe, the other end of the circulation fan fixedly connected to the outer circumferential surface of the insulated tank B via a pipe.

[0007] By adopting the above technical solution, the function of the circulation component is to realize the heat circulation between the insulation tank A outside the preheating tank and the insulation tank B where the separation tank is located. The two insulation tanks are connected by the circulation tank, and the extension and retraction of the extension tube on the guide tube is controlled by an electric push rod to adjust the guiding effect, thereby adjusting the rate and flow of heat circulation. At the same time, the circulation fan can accelerate the circulation of heat between the two insulation tanks, making the heat distribution more uniform, effectively improving the utilization rate of waste heat, reducing energy waste, ensuring that the preheating tank and the separation tank work in a suitable temperature environment, and ensuring the efficient and stable operation of the material preheating and separation process.

[0008] Preferably, both heat preservation tank A and heat preservation tank B are made by welding two semi-circular arc-shaped covers.

[0009] By adopting the above technical solution, compared with the integrally formed tank body, the two semi-circular arc covers are more convenient to transport and install, and can be welded and assembled on site, reducing the difficulty of transportation and installation costs.

[0010] Preferably, the top of the heat preservation tank A is provided with an injection hole and an exhaust hole at equal intervals in a ring.

[0011] By adopting the above technical solution, the opening of the injection hole and the vent hole is used to maintain the air circulation inside the tank, and to ensure the uniformity and stability of the preheating effect.

[0012] Preferably, the top of the waste heat storage tank is connected to a compressor via a pipe, and the output end of the compressor is connected to the preheating tank and the insulation tank A via pipes respectively.

[0013] By adopting the above technical solution, the waste heat in the waste heat storage tank is compressed and pressurized by a compressor, so that the waste heat is transferred to the preheating tank and the insulation tank A in a higher energy form. This achieves energy supplementation for the material preheating process and the insulation process of the preheating tank and the insulation tank A, improves the energy recycling rate, reduces the consumption of external energy, reduces the energy consumption of the entire system, helps to achieve energy conservation and emission reduction, and improves the energy utilization efficiency and economy of the material pumping device.

[0014] Preferably, a steam valve is installed on the pipeline connecting the preheating tank and the separation tank.

[0015] By adopting the above technical solution, the installation of steam valves is used to control the temperature of the liquid feed entering the separator, ensuring the stable operation of the compressor and the thermal balance of the entire system.

[0016] Preferably, a support plate is installed at the bottom of the circulating fan, and the support plate is connected to the sealing block by bolts.

[0017] By adopting the above technical solution, the support plate can be connected to the sealing block by bolts to provide a stable support structure for the circulating fan.

[0018] Preferably, after the extension tube is extended, there is a gap between the bottom of the extension tube and the bottom of the circulation tank.

[0019] By adopting the above technical solution, it is ensured that the fluid in the circulating tank can form an effective circulation around the extension pipe, thus ensuring the smoothness of the circulation system, improving the efficiency of heat circulation and transfer, and preventing problems such as uneven heat distribution caused by local dead zones or poor flow.

[0020] Preferably, the internal space of the heat preservation tank A is connected to the internal space of the heat preservation tank B through the circulation tank, the preheating tank is connected to the internal space of the separation tank through the pipeline, and the separation tank is connected to the internal space of the waste heat storage tank through the pipeline.

[0021] By adopting the above technical solution, the internal spaces of the insulation tank A, insulation tank B, preheating tank, separation tank and waste heat storage tank are connected through various pipelines and circulation components, so as to achieve the function of material transfer and energy recycling between different tanks.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. A portion of the secondary steam enters insulation tanks A and B, forming a thermal barrier outside the tanks. This reduces heat transfer from the preheating tank and separation tank to the outside, slows down the rate at which heat dissipates through the tanks, ensures stable internal heat, maintains the material reaction at a suitable temperature, and prevents prolonged reaction time due to heat loss.

[0024] 2. By extending the electric push rod to drive the extension tube to the bottom of the circulation tank, the circulation fan is turned on to accelerate the heat circulation between the two insulated tanks, making the heat distribution more uniform. The heat is evenly distributed inside the tank, avoiding local heat deficiency that would cause the material to react slowly. This ensures that the material can react at the appropriate temperature everywhere, improving the material reaction efficiency and shortening the overall reaction time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the application documents;

[0026] Figure 2 This is a structural diagram of insulated tank A and insulated tank B in this application.

[0027] Figure 3 This is a schematic cross-sectional view of the overall structure of this application document;

[0028] Figure 4 This is a schematic diagram of the loop component structure in this application document;

[0029] Figure 5 This is a schematic diagram of the flow guide tube in this application.

[0030] Attached reference numerals: 1. Preheating tank; 2. Insulation tank A; 3. Insulation tank B; 4. Separation tank; 5. Waste heat storage tank; 6. Compressor;

[0031] 7. Circulation assembly; 701. Circulation tank; 702. Sealing block; 703. Guide pipe; 704. Connecting block; 705. Electric push rod; 706. Extension pipe; 707. Circulation fan. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0033] The device's "up, down, left, right" perspectives are... Figure 1 The orientation of the attached diagram is the reference.

[0034] This application discloses a waste heat recovery evaporation system.

[0035] Reference Figures 1-3As shown, a waste heat recovery evaporation system includes a preheating tank 1. An insulated tank A2 is fixedly mounted on the outer surface of the preheating tank 1. The bottom end of the preheating tank 1 is connected to one end of a separating tank 4 via a pipe passing through the insulated tank B3. The separating tank 4 is located inside the insulated tank B3 and is spaced apart from it. The outer surface of the separating tank 4, away from the preheating tank 1, is connected to the inlet of a waste heat storage tank 5 via a pipe passing through the insulated tank B3. A circulation assembly 7 is installed between the insulated tank A2 and the insulated tank B3 via a pipe. The circulation assembly 7 includes a circulation tank 701, which is connected to the insulated tank A2 via a pipe. The bottom end of the circulation tank 701 is fixedly connected to the outer surface of one end of the insulated tank B3 via a pipe. A rectangular hole is opened on one side of the circulation tank 701, and welding is performed at the rectangular hole. A sealing block 702 has a circular hole on one side. A guide pipe 703 is fixedly installed inside the circular hole of the circulation tank 701. The guide pipe 703 is located vertically above the air inlet and outlet at the bottom of the circulation tank 701. A connecting block 704 is fixedly installed on the outer peripheral surface of the guide pipe 703 near the bottom. A vertically downward electric push rod 705 is fixedly connected to the bottom of the connecting block 704. An extension pipe 706 is fixedly connected to the telescopic end of the electric push rod 705. The extension pipe 706 is sleeved with the bottom end of the guide pipe 703. The circular hole on the side of the sealing block 702 away from the guide pipe 703 is fixedly connected to the air inlet of the circulation fan 707 through a pipe. The air outlet of the circulation fan 707 is fixedly connected to the outer peripheral surface of the end of the insulation tank B3 away from the circulation tank 701 through a pipe.

[0036] It should be noted that a steam valve is installed between the preheating tank 1 and the separation tank 4. The steam valve is controlled by the liquid temperature sensor in the separator inside the separation tank 4. The steam valve, separator, liquid temperature sensor, electric push rod 705, and circulating fan 707 are all existing devices and will not be described in detail here.

[0037] Steam enters preheating tank 1 to preheat the material. The steam valve is controlled by a liquid temperature sensor inside the separator. In automatic control, live steam enters the steam preheater of the raw material liquid. The steam valve only opens when there is flow of liquid in the pipe, and the opening size is based on the temperature of the liquid in the pipe, controlling the temperature of the liquid when it enters separator 4. The liquid is separated in separator 4, and a portion of the liquid becomes high-temperature steam, which enters waste heat storage tank 5 through a pipeline. The secondary steam generated by the separator is compressed by compressor 6, increasing both its pressure and temperature. This secondary steam enters preheating tank 1 as a heat source to heat the material. Simultaneously... Some of the steam enters the insulation tanks A2 and B3 through pipes, thereby reducing the heat loss rate of the preheating tank 1 and the separation tank 4. At the same time, by deploying the electric push rod 705, the extension pipe 706 is driven downward to the air inlet and outlet at the bottom of the circulation tank 701, and the circulation fan 707 is turned on, thereby accelerating the circulation of heat between the two insulation tanks, making the heat distribution more uniform, effectively improving the utilization rate of waste heat, reducing energy waste, ensuring that the preheating tank 1 and the separation tank 4 operate in a suitable temperature environment, and ensuring the efficient and stable operation of the material preheating and separation process.

[0038] Reference Figure 3 - Figure 5 As shown, both heat preservation tank A2 and heat preservation tank B3 are assembled by welding two semi-circular arc-shaped covers of the same size. The top of heat preservation tank A2 is provided with injection holes and exhaust holes at equal intervals for connection with the output end of compressor 6. The top of waste heat storage tank 5 is connected to compressor 6 through a pipe. The output end of compressor 6 is connected to heat preservation tank A2 and preheating tank 1 through a pipe. Preheating tank 1 is connected to heat preservation tank A2 through a pipe. A one-way steam valve is installed on the pipe connecting preheating tank 1 and separation tank 4. The base of circulating fan 707 is bolted with a support plate connected to sealing block 702. After extension pipe 706 is extended, its bottom does not contact the inlet and outlet of the bottom end of circulating tank 701. Heat preservation tank A2 is connected to the internal space of heat preservation tank B3 through pipe and circulating tank 701. Preheating tank 1 is connected to the internal space of separation tank 4 and waste heat storage tank 5 through pipe.

[0039] Insulation tanks A2 and B3 are pre-welded to the outer surfaces of preheating tank 1 and separation tank 4, respectively. The secondary steam generated in separation tank 4 enters waste heat storage tank 5 for storage, and is then compressed and heated by compressor 6 before being injected into preheating tank 1, thus circulating the heat source. At the same time, a portion of the heat source enters insulation tanks A2 and B3, thereby achieving the function of heat preservation.

[0040] The implementation principle of the waste heat recovery evaporation system in this application embodiment is as follows: live steam enters the raw material liquid steam preheater through a steam valve. The valve is opened according to the flow and temperature of the liquid in the pipe. After preheating, the liquid enters the separation tank 4 for separation. The high-temperature steam generated by separation enters the waste heat storage tank 5. After the secondary steam is pressurized and heated by the compressor 6, part of it returns to the preheating tank 1 as a heat source to heat the material, and part of it enters the insulation tanks A2 and B3 to reduce the heat loss between the preheating tank 1 and the separation tank 4. By deploying the electric push rod 705, the extension pipe 706 is driven to the bottom of the circulation tank 701, and the circulation fan 707 is turned on to accelerate the heat circulation between the two insulation tanks, so that the heat distribution is uniform, the waste heat utilization rate is improved, and the material preheating and separation process is ensured to operate efficiently and stably.

[0041] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A waste heat recovery evaporation system, characterized by: The application relates to a preheating tank (1), the outer peripheral surface of which is fixedly provided with a heat preservation tank A (2), one end of the preheating tank (1) is connected with a separation tank (4) through a pipeline, the separation tank (4) is located in the interior of a heat preservation tank B (3), and the outer peripheral surface of one end of the separation tank (4) is connected with a waste heat storage tank (5) through a pipeline; a circulating assembly (7) is arranged between the heat preservation tank A (2) and the heat preservation tank B (3) through a pipeline. The circulating assembly (7) comprises a circulating tank (701) which is communicated with the heat preservation tank A (2) through a pipeline, the other end of the circulating tank (701) is connected with the heat preservation tank B (3) through a pipeline, a sealing block (702) is welded on one side of the circulating tank (701), a flow guide pipe (703) is fixedly connected to one side of the sealing block (702) and located in the interior of the circulating tank (701), a connecting block (704) is fixedly connected to the outer peripheral surface of the flow guide pipe (703), an electric push rod (705) is fixedly connected to the bottom of the connecting block (704), an extension pipe (706) which is sleeved with the bottom end of the flow guide pipe (703) is fixedly connected to the telescopic end of the electric push rod (705), a circulating fan (707) is fixedly arranged on the side of the sealing block (702) which is away from the flow guide pipe (703), and the other end of the circulating fan (707) is fixedly connected to the outer peripheral surface of the heat preservation tank B (3) through a pipeline.

2. The waste heat recovery evaporation system of claim 1, wherein: The heat preservation tank A (2) and the heat preservation tank B (3) are both made of two semicircular arc-shaped covers which are welded.

3. The waste heat recovery evaporation system of claim 1, wherein: An injection hole and an exhaust hole are respectively arranged on the top of the heat preservation tank A (2) in a ring shape and at equal distances.

4. The waste heat recovery evaporation system of claim 1, wherein: A compressor (6) is connected to the top end of the waste heat storage tank (5) through a pipeline, and the output end of the compressor (6) is connected with the preheating tank (1) and the heat preservation tank A (2) through pipelines.

5. The waste heat recovery evaporation system of claim 1, wherein: A steam valve is arranged on the pipeline connected between the preheating tank (1) and the separation tank (4).

6. The waste heat recovery evaporation system of claim 1, wherein: A supporting plate is arranged on the bottom of the circulating fan (707) and connected with the sealing block (702) through bolts.

7. The waste heat recovery evaporation system of claim 1, wherein: The bottom of the extension pipe (706) is spaced from the bottom end of the circulating tank (701) when the extension pipe (706) is unfolded.

8. The waste heat recovery evaporation system of claim 1, wherein: The interior space of the heat preservation tank A (2) is communicated with the interior space of the heat preservation tank B (3) through the circulating tank (701), the interior space of the preheating tank (1) is communicated with the interior space of the separation tank (4) through a pipeline, and the interior space of the separation tank (4) is communicated with the interior space of the waste heat storage tank (5) through a pipeline.

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