Heat pump waste heat utilization rectification device

Abstract

The utility model relates to rectifying device technical field discloses a kind of heat pump waste heat utilization rectifying device, including heat transfer mechanism, the heat transfer mechanism includes heat transfer bin, the inside of heat transfer bin is equipped with cavity, the first shunt disc is fixedly connected in the top surface of cavity, the periphery of the lower surface of first shunt disc is fixedly connected with multiple steam pipelines, the center of first shunt disc lower surface is fixedly connected with fixed shaft, the outer wall of fixed shaft is fixedly connected with flow guide vane, the rear end of heat transfer mechanism is provided with reflux mechanism. In the utility model, the outer wall of fixed shaft is fixedly connected with flow guide vane, steam pipeline revolves around fixed shaft disc on flow guide vane, so that water flow and steam pipeline are fully contacted, and then the heat of steam in steam pipeline is efficiently conducted to water flow, so as to improve the utilization efficiency of steam waste heat in rectifying device, and the water flow that does not reach preset temperature is reheated by reflux mechanism, to improve the practicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of distillation equipment technology, and in particular to a heat pump waste heat utilization distillation device. Background Technology

[0002] Distillation is one of the most commonly used separation technologies in industries such as chemical, petroleum, pharmaceutical, and food. The distillation unit is the basic unit for realizing this process. However, the distillation process is usually accompanied by extremely high energy consumption, which accounts for 40% to 70% of the entire process. Waste heat recovery and utilization has become a key breakthrough for the green transformation of the industry and an important technical path for the chemical industry to achieve the "dual carbon" goal.

[0003] A significant portion of the heat in a distillation unit is lost in the form of steam. Most existing distillation units do not utilize the waste heat in the steam, or their utilization efficiency is low, resulting in problems such as low direct utilization rate and failure to reach the preset temperature when heating items, thus almost completely wasting the waste heat in the steam.

[0004] Therefore, those skilled in the art have provided a heat pump waste heat utilization distillation device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat pump waste heat utilization distillation device. A guide vane is fixedly connected to the outer wall of a fixed shaft. A steam pipe rotates around the guide vane on the fixed shaft, causing water to flow along the guide vane towards the outlet. The water and steam pipe are in full contact, allowing for efficient heat transfer from the steam to the water, thus improving the utilization efficiency of waste heat in the distillation device. A reflux mechanism reheats water that has not reached the preset temperature, enhancing the device's practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A heat pump waste heat recovery distillation device includes a heat transfer mechanism, which includes a heat transfer chamber with a cavity inside. A first distribution plate is fixedly connected to the top surface of the cavity. Multiple steam pipes are fixedly connected to the periphery of the lower surface of the first distribution plate. A fixed shaft is fixedly connected to the center of the lower surface of the first distribution plate. A guide vane is fixedly connected to the outer wall of the fixed shaft. A second distribution plate is fixedly connected to the lower surface of the fixed shaft. The lower surface of the second distribution plate is fixedly connected to the inner bottom surface of the cavity. A temperature sensor is fixedly connected to the lower end of one side of the inner wall of the cavity. A first water inlet pipe is fixedly connected to the upper end of the outer wall of the heat transfer chamber. A first water outlet pipe and a second water outlet pipe are fixedly connected to the lower end of the outer wall of the heat transfer chamber. The heat transfer mechanism is provided with a reflux mechanism at its rear end. The reflux mechanism includes a second water inlet pipe. A three-way valve is fixedly connected to the lower surface of the second water inlet pipe. A water pump is fixedly connected to the lower surface of the three-way valve.

[0007] Through the above technical solution, steam enters multiple steam pipes through the first diverter plate, and both the steam pipes and water flow are surrounded by guide vanes around a fixed shaft, thereby increasing the contact area between steam and water flow and extending the contact time between water flow and steam pipes. This allows for efficient heat transfer from the steam to the water flow. A temperature sensor installed at the lower end of the cavity wall enables real-time monitoring of the water flow temperature. A return mechanism allows water flow that has not reached the preset temperature to return to the heat transfer mechanism for reheating until the preset temperature is reached, and then it flows out through the second outlet pipe. This improves the energy utilization rate of the device, achieves efficient utilization of excess steam heat, and increases the practicality of the device.

[0008] Furthermore, an air inlet is provided at the center of the upper surface of the heat transfer chamber, and an air outlet is provided at the center of the lower surface of the heat transfer chamber. The above technical solution enables the circulation of steam through the air inlet and outlet.

[0009] Furthermore, a first water inlet is provided at the upper end of the inner wall of the heat transfer chamber, the inner wall of the first water inlet is fixedly connected to the first water inlet pipe, and a first control valve is fixedly connected at the upper end of the outer wall of the first water inlet pipe. The above technical solution involves a first water inlet pipe fixedly connected to the inner wall of the first water inlet, allowing water to flow into the heat transfer mechanism. The opening and closing of the water inlet is controlled by the first control valve.

[0010] Furthermore, a first water outlet is provided at the lower end of the inner wall of the heat transfer chamber, the inner wall of the first water outlet is fixedly connected to the first water outlet pipe, and a second control valve is fixedly connected at the upper end of the outer wall of the first water outlet pipe. The above technical solution involves a first water outlet pipe fixedly connected to the inner wall of the first water outlet, allowing water to flow out of the heat transfer mechanism, and controlling the opening and closing of the first water outlet through the first water inlet pipe.

[0011] Furthermore, a second water outlet is provided at the lower end of the inner wall of the heat transfer chamber, the inner wall of the second water outlet is fixedly connected to the second water outlet pipe, and a third control valve is fixedly connected at the upper end of the outer wall of the second water outlet pipe. With the above technical solution, a second water outlet pipe is fixedly connected to the inner wall of the second water outlet, so that water flows out of the heat transfer mechanism, and the opening and closing of the first water outlet is controlled by the third control valve.

[0012] Furthermore, both the first and second diversion plates have multiple diversion holes inside; Through the above technical solution, the two ends of the steam pipe are fixedly connected to the diversion holes opened on the first diversion plate and the second diversion plate, respectively, so that the steam enters multiple steam pipes on the first diversion plate, thereby increasing the contact area between the steam and the water flow, and the steam is re-gathered on the second diversion plate, so as to be discharged uniformly.

[0013] Furthermore, the three-way valve is fixedly connected to the first inlet pipe via the third flange, and the water pump is fixedly connected to the first outlet pipe via the first flange; The above technical solution ensures the inflow and outflow of water in the heat transfer mechanism by fixing the third flange to the first inlet pipe and the water pump to the first outlet pipe, thereby achieving the reheating of the water.

[0014] Furthermore, the second water inlet pipe is fixedly connected to the three-way valve via the second flange, and the three-way valve is fixedly connected to the fifth flange via the fourth flange; The above technical solution involves a fixed connection between the second flange and the three-way valve, ensuring that the inlet opens and closes as needed. A fixed connection between the fourth and fifth flanges ensures the smooth flow of water within the reflux mechanism.

[0015] This utility model has the following beneficial effects: 1. The present invention proposes a heat pump waste heat utilization distillation device, which allows steam to enter multiple steam pipes through a first distribution plate, and both the steam pipes and the water flow are surrounded by guide vanes around a fixed shaft, thereby increasing the contact area between the steam and the water flow and extending the contact time between the water flow and the steam pipes. This efficiently transfers the heat from the steam to the water flow, thereby realizing the utilization of waste heat from the distillation device, improving energy utilization efficiency, and reducing energy consumption.

[0016] 2. The heat pump waste heat utilization distillation device proposed in this utility model realizes real-time monitoring of water flow temperature through a temperature sensor set at the lower end of the inner wall of the cavity. Through the reflux mechanism, the water flow that has not reached the preset temperature returns to the heat transfer mechanism for reheating until it reaches the preset temperature, and then flows out through the second water outlet pipe, realizing efficient utilization of excess heat of steam and increasing the practicality of the device. Attached Figure Description

[0017] Figure 1 This is an isometric view of a heat pump waste heat utilization distillation device proposed in this utility model; Figure 2 This is a cross-sectional view of the heat transfer mechanism of a heat pump waste heat utilization distillation device proposed in this utility model; Figure 3 This is a schematic diagram of the fixed shaft structure of a heat pump waste heat utilization distillation device proposed in this utility model; Figure 4 This is a schematic diagram of the guide vane structure of a heat pump waste heat utilization distillation device proposed in this utility model; Figure 5 This is a schematic diagram of the reflux mechanism of a heat pump waste heat utilization distillation device proposed in this utility model.

[0018] Legend: Heat transfer mechanism; 101, heat transfer chamber; 102, cavity; 103, air inlet; 104, first distribution plate; 105, distribution hole; 106, steam pipe; 107, second distribution plate; 108, air outlet; 109, temperature sensor; 1010, first water inlet; 1011, first water inlet pipe; 1012, first control valve; 1013, first water outlet; 1014, first water outlet pipe; 1015, second control valve; 1016, second water outlet; 1017, second water outlet pipe; 1018, third control valve; 1019, fixed shaft; 1020, guide vane; Reflux mechanism; 201, second inlet pipe; 202, three-way valve; 203, water pump; 204, first flange; 205, second flange; 206, third flange; 207, fourth flange; 208, fifth flange. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] One specific embodiment of this utility model is provided: Reference Figure 1 , Figure 2 and Figure 5A heat pump waste heat utilization distillation device includes a heat transfer mechanism 1, which includes a heat transfer chamber 101. A cavity 102 is formed inside the heat transfer chamber 101. A first distribution plate 104 is fixedly connected to the top surface of the cavity 102. Multiple steam pipes 106 are fixedly connected around the lower surface of the first distribution plate 104. A fixed shaft 1019 is fixedly connected to the center of the lower surface of the first distribution plate 104. A guide vane 1020 is fixedly connected to the outer wall of the fixed shaft 1019. A second distribution plate 107 is fixedly connected to the lower surface of the fixed shaft 1019. The lower surface of the second distribution plate 107 is fixedly connected to the inner bottom surface of the cavity 102. A temperature sensor 109 is fixedly connected to the lower end of one side of the inner wall of the cavity 102. A first water inlet pipe 1011 is fixedly connected to the upper end of the outer wall of the heat transfer chamber 101. A first water outlet pipe 1014 and a second water outlet pipe 1017 are fixedly connected to the lower end of the outer wall of the heat transfer chamber 101. The heat transfer mechanism 1 is provided with a return mechanism 2 at its rear end. The return mechanism 2 includes a second water inlet pipe 201. A three-way valve 202 is fixedly connected to the lower surface of the second water inlet pipe 201. A water pump 203 is fixedly connected to the lower surface of the three-way valve 202. Steam enters multiple steam pipes 106 through the first diverter plate 104, and both the steam pipes 106 and the water flow are surrounded by guide vanes 1020 around the fixed shaft 1019, thereby increasing the contact area between the steam and the water flow and extending the contact time between the water flow and the steam pipes 106. This allows for efficient heat transfer from the steam to the water flow. The temperature sensor 109 installed at the lower end of the inner wall of the cavity 102 enables real-time monitoring of the water flow temperature. The return mechanism 2 allows water that has not reached the preset temperature to return to the heat transfer mechanism 1 for reheating until the preset temperature is reached, and then it flows out through the second outlet pipe 1017. This improves the energy utilization rate of the device, achieves efficient utilization of excess heat from the steam, and increases the practicality of the device.

[0021] Reference Figure 2 , Figure 3 and Figure 4An air inlet 103 is located at the center of the upper surface of the heat transfer chamber 101, and an air outlet 108 is located at the center of the lower surface of the heat transfer chamber 101. A first water inlet 1010 is located at the upper end of the inner wall of the heat transfer chamber 101, and the inner wall of the first water inlet 1010 is fixedly connected to a first water inlet pipe 1011. A first control valve 1012 is fixedly connected to the upper end of the outer wall of the first water inlet pipe 1011. A first water outlet 1013 is located at the lower end of the inner wall of the heat transfer chamber 101, and the inner wall of the first water outlet 1013 is connected to the first water outlet pipe 101. 4. Fixed connections: A second control valve 1015 is fixedly connected to the upper end of the outer wall of the first water outlet pipe 1014. A second water outlet 1016 is opened at the lower end of the inner wall of the heat transfer chamber 101. The inner wall of the second water outlet 1016 is fixedly connected to the second water outlet pipe 1017. A third control valve 1018 is fixedly connected to the upper end of the outer wall of the second water outlet pipe 1017. Multiple diversion holes 105 are opened inside the first diversion plate 104 and the second diversion plate 107. Through the opened air inlet 103 and air outlet 108, steam is generated. The steam flows through a first inlet pipe 1011 fixedly connected to the inner wall of the first inlet 1010, allowing water to enter the heat transfer mechanism 1. The opening and closing of the inlet is controlled by a first control valve 1012. A first outlet pipe 1014 is fixedly connected to the inner wall of the first outlet 1013, allowing water to flow out of the heat transfer mechanism 1. The opening and closing of the first outlet 1013 is controlled by the first inlet pipe 1011. A second outlet pipe 101 is fixedly connected to the inner wall of the second outlet 1016. 7. This allows water to flow out of the heat transfer mechanism 1. The third control valve 1018 controls the opening and closing of the second outlet 1016. The two ends of the steam pipe 106 are fixedly connected to the diversion holes 105 on the first diversion plate 104 and the second diversion plate 107, respectively. This allows steam to enter multiple steam pipes 106 on the first diversion plate 104, thereby increasing the contact area between the steam and the water. The steam then re-converges on the second diversion plate 107 and is discharged uniformly.

[0022] Reference Figure 2 and Figure 5The three-way valve 202 is fixedly connected to the first inlet pipe 1011 via the third flange 206. The water pump 203 is fixedly connected to the first outlet pipe 1014 via the first flange 204. The second inlet pipe 201 is fixedly connected to the three-way valve 202 via the second flange 205. The three-way valve 202 is fixedly connected to the fifth flange 208 via the fourth flange 207. The fixed connection between the third flange 206 and the first inlet pipe 1011, and the fixed connection between the water pump 203 and the first outlet pipe 1014, ensures the inflow and outflow of water in the heat transfer mechanism 1, thereby achieving reheating of the water. The fixed connection between the second flange 205 and the three-way valve 202 ensures that the inlet can be opened and closed according to the actual situation. The fixed connection between the fourth flange 207 and the fifth flange 208 ensures the flow of water in the return mechanism 2.

[0023] Working principle: Upon startup, steam enters the heat transfer mechanism 1 through the inlet 103. The steam passes through multiple diversion holes 105 inside the first diversion plate 104, thus evenly entering multiple steam pipes 106. The steam pipes 106 are surrounded by guide vanes 1020 around the fixed shaft 1019. Then, the three-way valve 202 is rotated to allow water to flow through the second flange 205. The first control valve 1012 is rotated to start water flow into the heat transfer mechanism 1, and the water flows spirally downwards through the guide vanes 1020, extending the contact time between the water and the steam pipes 106 in the heat transfer mechanism 1, thus increasing the steam concentration in the steam pipes 106. The heat is fully transferred to the water flow. Then, the temperature sensor 109 is activated to detect the water flow temperature in real time. If the water flow temperature is lower than the preset temperature, the second control valve 1015 is opened to allow the water flow to return to the heat transfer mechanism 2. Then, the three-way valve 202 is rotated to allow the water flow to return to the heat transfer mechanism 1 through the third flange 206 for secondary heating until the water flow temperature reaches the preset temperature. When the water flow reaches the preset temperature, the third control valve 1018 is opened to discharge the water flow from the heat transfer mechanism 1. The water flow is then utilized, thereby realizing the utilization of waste heat in the steam of the distillation unit and improving energy utilization efficiency.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat pump waste heat recovery distillation device, comprising a heat transfer mechanism (1), characterized in that: The heat transfer mechanism (1) includes a heat transfer chamber (101), the interior of which is provided with a cavity (102). A first distribution plate (104) is fixedly connected to the top surface of the cavity (102). Multiple steam pipes (106) are fixedly connected around the lower surface of the first distribution plate (104). A fixed shaft (1019) is fixedly connected to the center of the lower surface of the first distribution plate (104). A guide vane (1020) is fixedly connected to the outer wall of the fixed shaft (1019). A second diversion plate (107) is fixedly connected to the lower surface of the fixed shaft (1019). The lower surface of the second diversion plate (107) is fixedly connected to the inner bottom surface of the cavity (102). A temperature sensor (109) is fixedly connected to the lower end of one side of the inner wall of the cavity (102). A first water inlet pipe (1011) is fixedly connected to the upper end of the outer wall of the heat transfer chamber (101). A first water outlet pipe (1014) and a second water outlet pipe (1017) are fixedly connected to the lower end of the outer wall of the heat transfer chamber (101). The heat transfer mechanism (1) is provided with a return mechanism (2) at its rear end. The return mechanism (2) includes a second water inlet pipe (201). A three-way valve (202) is fixedly connected to the lower surface of the second water inlet pipe (201). A water pump (203) is fixedly connected to the lower surface of the three-way valve (202).

2. The heat pump waste heat recovery distillation device according to claim 1, characterized in that: An air inlet (103) is provided at the center of the upper surface of the heat transfer chamber (101), and an air outlet (108) is provided at the center of the lower surface of the heat transfer chamber (101).

3. The heat pump waste heat recovery distillation device according to claim 1, characterized in that: The upper end of the inner wall of the heat transfer chamber (101) is provided with a first water inlet (1010), the inner wall of the first water inlet (1010) is fixedly connected to the first water inlet pipe (1011), and the upper end of the outer wall of the first water inlet pipe (1011) is fixedly connected with a first control valve (1012).

4. The heat pump waste heat recovery distillation device according to claim 1, characterized in that: The lower end of the inner wall of the heat transfer chamber (101) is provided with a first water outlet (1013), the inner wall of the first water outlet (1013) is fixedly connected to the first water outlet pipe (1014), and the upper end of the outer wall of the first water outlet pipe (1014) is fixedly connected with a second control valve (1015).

5. The heat pump waste heat recovery distillation device according to claim 1, characterized in that: The lower end of the inner wall of the heat transfer chamber (101) is provided with a second water outlet (1016), the inner wall of the second water outlet (1016) is fixedly connected to the second water outlet pipe (1017), and the upper end of the outer wall of the second water outlet pipe (1017) is fixedly connected with a third control valve (1018).

6. The heat pump waste heat recovery distillation device according to claim 1, characterized in that: The first diversion plate (104) and the second diversion plate (107) are both provided with multiple diversion holes (105).

7. A heat pump waste heat recovery distillation device according to claim 1, characterized in that: The three-way valve (202) is fixedly connected to the first inlet pipe (1011) via the third flange (206), and the water pump (203) is fixedly connected to the first outlet pipe (1014) via the first flange (204).

8. A heat pump waste heat recovery distillation device according to claim 1, characterized in that: The second water inlet pipe (201) is fixedly connected to the three-way valve (202) via the second flange (205), and the three-way valve (202) is fixedly connected to the fifth flange (208) via the fourth flange (207).

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