A heat energy recovery system utilizing sugar syrup waste heat

Abstract

The utility model relates to a kind of heat recovery system using sugar syrup waste heat, including heat exchanger, with the first, second passway of respectively intercommunication sugar syrup pipeline and tap water pipeline;First heat preservation bucket, by first pipeline and the water outlet end of second passway are connected;Second heat preservation bucket, first heat preservation bucket is connected by second pipeline with first water pump;First heating device, with second heat preservation bucket connection;Boiler, second heat preservation bucket is connected by third pipeline with second water pump;Control box, electrically connected first heating device and each water pump, first using heat exchanger to transfer sugar syrup waste heat to tap water and carry out preheating, reduce subsequent heating energy consumption;Secondly, by control box coordination equipment in low price power period and carry out secondary heating, reduce operating cost;Staged heating mode makes boiler only need to supplement heating to steam temperature, substantially reduce fuel consumption, two-stage heat preservation bucket ensure water temperature stability, reduce heat loss.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, specifically to a heat energy recovery system that utilizes the waste heat of syrup. Background Technology

[0002] During syrup production, the syrup generates a significant amount of waste heat at high temperatures. This waste heat is typically released into the environment through a cooling system, resulting in energy waste. Simultaneously, the boiler needs to heat ambient temperature tap water to high temperatures to produce steam, a process that consumes a large amount of fuel gas, increasing production costs. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heat energy recovery system that utilizes the waste heat of syrup.

[0004] The objective of this utility model can be achieved through the following technical solution: a heat energy recovery system utilizing waste heat from syrup, comprising a heat exchanger having a first and a second channel respectively connected to a syrup pipeline and a tap water pipeline; a first insulated container connected to the outlet of the second channel via a first pipe; a second insulated container connected to the first insulated container via a second pipe equipped with a first water pump; a first heating device connected to the second insulated container for heating the liquid inside the container to a preset temperature; a boiler connected to the second insulated container via a third pipe equipped with a second water pump for heating the liquid into steam; and a control box electrically connected to the first heating device and each water pump for controlling their operation within a preset time period.

[0005] Preferably, it also includes a second heating device, which is a solar collector. The inlet end of the solar collector is connected to the first insulation tank, and the outlet end is connected to the second insulation tank. The inlet end and outlet end of the solar collector are respectively equipped with a third water pump and a solenoid valve that are electrically connected to the control box.

[0006] Preferably, the solar collector is equipped with a light sensor that is electrically connected to the control box.

[0007] Preferably, both the first and second insulated containers are provided with an insulation layer, which is made of vacuum insulation material or foamed polyurethane material.

[0008] Preferably, both the first and second insulation containers are equipped with temperature sensors that are electrically connected to the control box.

[0009] Preferably, the first pipe, the second pipe, and the third pipe are all insulated pipes.

[0010] Preferably, the first heating device is either an air-source heater or an electric heater.

[0011] The beneficial effects of this utility model are as follows: through the coordinated design of waste heat recovery and time-sharing heating, significant energy-saving effects are achieved: firstly, the waste heat of syrup is transferred to tap water for preheating using a heat exchanger, reducing subsequent heating energy consumption; secondly, the control box coordinates the equipment to perform secondary heating during periods of low electricity prices, reducing operating costs; the staged heating mode allows the boiler to only need to supplement heating to the steam temperature, greatly reducing fuel consumption; the two-stage insulation tank ensures stable water temperature and reduces heat loss; the fully automated control optimizes equipment operating efficiency, forming an efficient steam preparation scheme with cascaded energy utilization. Attached Figure Description

[0012] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a heat energy recovery system utilizing waste heat from syrup according to this utility model.

[0014] The labels in the diagram represent: 1. Heat exchanger; 101. Syrup pipeline; 102. Tap water pipeline; 2. First insulated tank; 3. First pipe; 4. Second insulated tank; 5. First water pump; 6. Second pipe; 7. First heating device; 8. Boiler; 9. Second water pump; 10. Third pipe; 11. Control box; 12. Solar collector; 13. Third water pump; 14. Solenoid valve; 15. Temperature sensor. Detailed Implementation

[0015] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0016] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0017] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] See Figure 1 As shown, the structure of this utility model is as follows: a heat energy recovery system utilizing the waste heat of syrup, including a heat exchanger 1, having first and second channels respectively connected to a syrup pipeline 101 and a tap water pipeline 102; a first insulated container 2, connected to the outlet of the second channel via a first pipe 3; a second insulated container 4, connected to the first insulated container 2 via a second pipe 6 equipped with a first water pump 5; a first heating device 7, connected to the second insulated container 4, used to heat the liquid in the container to a preset temperature; a boiler 8, connected to the second insulated container 4 via a third pipe 10 equipped with a second water pump 9, used to heat the liquid into steam; and a control box 11, electrically connected to the first heating device 7 and each water pump, controlling their operation during a preset time period. Specifically, when the high-temperature syrup passes through the first channel of the heat exchanger 1, it transfers heat to the room-temperature tap water in the second channel, using the high-temperature waste heat of the syrup to preheat the room-temperature tap water from about 15 degrees Celsius to about 30 degrees Celsius. After preheating, the tap water flows into the first insulated container 2 for storage. The first insulated container 2 acts as a waste heat collector. The preheated medium-temperature water in heat exchanger 1 is stored in real time to form a stable water supply buffer layer, avoiding direct reliance on the unstable waste heat of high-temperature syrup. Control box 11 controls the start of the first water pump 5 to pump the water in the first insulation tank 2 to the second insulation tank 4. At the same time, the first heating device 7 is activated to reheat the water. Taking advantage of the off-peak electricity price at night (0.3 yuan / kWh), the water in the second insulation tank 4 is further heated to about 60 degrees Celsius. The heating time is 8 hours, which allows the first heating device 7 to complete energy storage in advance during the off-peak electricity price period. After heating, the second water pump 9 delivers the water to the boiler 8. When the boiler 8 supplies steam, it directly uses the heated hot water in the second insulation tank 4. The boiler only needs to heat the water temperature from 60 degrees Celsius to 100-120 degrees Celsius to convert it into steam for production, which can meet the production needs, thereby reducing gas consumption by about 52% and saving about 277,600 yuan per year. The whole process is coordinated by control box 11 to achieve the dual energy-saving effect of waste heat recovery and time-of-use electricity pricing.

[0019] like Figure 1As shown, it also includes a second heating device, which is a solar collector 12. The water inlet of the solar collector 12 is connected to the first insulation tank 2, and the water outlet is connected to the second insulation tank 4. The water inlet and water outlet of the solar collector 12 are respectively equipped with a third water pump 13 and a solenoid valve 14 electrically connected to the control box 11. Specifically, when there is sufficient sunlight, the control box 11 starts the third water pump 13 to introduce water from the first insulation tank 2 into the solar collector 12 for heating. Then, the solenoid valve 14 is opened, and the hot water flows directly into the second insulation tank 4 for storage, thereby further saving energy consumption.

[0020] Furthermore, the solar collector 12 is equipped with a light sensor electrically connected to the control box 11. Specifically, the light sensor is used to monitor the ambient light intensity in real time and feed the data back to the control box 11. The control box 11 adjusts the operating status of the solar collector 12 by analyzing the light conditions: when sufficient light is detected, the control box 11 automatically starts the third water pump 13 to introduce water from the first insulation tank 2 into the solar collector 12 for heating; when the light is insufficient or at night, the control box 11 switches to the first heating device 7 to supplement the heating of the water in the second insulation tank 4.

[0021] Furthermore, both the first insulation tank 2 and the second insulation tank 4 are equipped with an insulation layer. The insulation layer is made of vacuum insulation material or foamed polyurethane material. Specifically, the insulation layer is used to reduce the heat exchange between the water temperature inside the tank and the external environment, ensuring that the stored hot water maintains the target temperature before being transported to the boiler 8.

[0022] Furthermore, the first pipe 3, the second pipe 6, and the third pipe 10 are all insulated pipes. The insulated pipes can effectively reduce heat loss when the liquid is transported in the pipes, ensuring stable water temperature.

[0023] like Figure 1 As shown, both the first insulation tank 2 and the second insulation tank 4 are equipped with temperature sensors 15 that are electrically connected to the control box 11. The temperature sensors 15 are used to monitor the water temperature in the first insulation tank 2 and the second insulation tank 4 in real time.

[0024] Example 1: Furthermore, the first heating device 7 is an air source heater. The air source heater exchanges heat by absorbing heat energy from the air, which has high efficiency and energy-saving characteristics. Compared with traditional heating methods, it can significantly reduce energy consumption costs. As a clean energy source, it has zero carbon emissions during operation, which meets environmental protection requirements. In addition, air source heating is highly safe, has a long service life, and low maintenance costs. Combined with the energy storage design of the two-stage insulation tank in the system, it can further optimize energy utilization efficiency and improve overall economic efficiency.

[0025] Example 2: Furthermore, the first heating device 7 is an electric heater, which directly converts electrical energy into heat energy, has efficient and stable heating characteristics, can quickly respond to changes in system load, and ensures that the water is heated to the target temperature in a short time; its structure is relatively simple and compact, with low maintenance costs and high reliability.

[0026] In practical use, when the high-temperature syrup passes through the first channel of heat exchanger 1, it transfers heat to the room-temperature tap water in the second channel. The residual heat of the syrup preheats the room-temperature tap water from about 15 degrees Celsius to about 30 degrees Celsius. After preheating, the water flows into the first insulation tank 2 for storage. The control box 11 controls the first water pump 5 to start, pumping the water in the first insulation tank 2 to the second insulation tank 4. At the same time, the first heating device 7 is activated to reheat the water. Taking advantage of the off-peak electricity price (0.3 yuan / kWh), the water in the second insulation tank 4 is further heated to about 60 degrees Celsius. The heating time is 8 hours, allowing the first heating device 7 to complete energy storage in advance during the off-peak electricity price period. After heating is completed, the second water pump 9 delivers the water to the boiler 8. When the boiler 8 supplies steam, it directly uses the heated hot water in the second insulation tank 4. The boiler only needs to heat the water temperature from 60 degrees Celsius to 100-120 degrees Celsius to convert it into steam for production, which can meet the production needs.

[0027] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A heat energy recovery system utilizing waste heat from syrup, characterized in that: Includes a heat exchanger (1) having a first and a second channel respectively connected to a syrup pipeline (101) and a tap water pipeline (102); The first insulated container (2) is connected to the water outlet of the second channel through the first pipe (3); The second insulated container (4) is connected to the first insulated container (2) via a second pipe (6) equipped with a first water pump (5); The first heating device (7) is connected to the second heat preservation tank (4) and is used to heat the liquid in the tank to a preset temperature; The boiler (8) is connected to the second heat-insulating tank (4) via a third pipe (10) equipped with a second water pump (9) for heating the liquid into steam; The control box (11) is electrically connected to the first heating device (7) and each water pump, and controls them to operate during a preset time period.

2. The heat energy recovery system utilizing waste heat from syrup according to claim 1, characterized in that: It also includes a second heating device, which is a solar collector (12). The inlet end of the solar collector (12) is connected to the first heat preservation tank (2), and the outlet end is connected to the second heat preservation tank (4). The inlet end and outlet end of the solar collector (12) are respectively equipped with a third water pump (13) and a solenoid valve (14) electrically connected to the control box (11).

3. The heat energy recovery system utilizing waste heat from syrup according to claim 2, characterized in that: The solar collector (12) is equipped with a light sensor that is electrically connected to the control box (11).

4. The heat energy recovery system utilizing waste heat from syrup according to claim 1, characterized in that: Both the first insulated bucket (2) and the second insulated bucket (4) are provided with an insulation layer, which is made of vacuum insulation material or foamed polyurethane material.

5. A heat energy recovery system utilizing waste heat from syrup according to claim 1, characterized in that: The first insulation barrel (2) and the second insulation barrel (4) are each equipped with a temperature sensor (15) that is electrically connected to the control box (11).

6. A heat energy recovery system utilizing waste heat from syrup according to claim 1, characterized in that: The first pipe (3), the second pipe (6), and the third pipe (10) are all insulated pipes.

7. A heat energy recovery system utilizing waste heat from syrup according to claim 1, characterized in that: The first heating device (7) is either an air-source heater or an electric heater.

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