Pitavastatin calcium low temperature hot water tank heat source recycling device

Abstract

The utility model discloses a kind of pitavastatin calcium low-temperature hot water tank heat source recycling devices, including hot water tank and coil, coil is arranged in the inside of hot water tank, the import end of coil is provided with main control valve, steam heat source pipeline and steam condensate water heat source pipeline are communicated with main control valve respectively, steam heat source pipeline is provided with steam heating valve, steam condensate water heat source pipeline is provided with steam condensate water heating valve;The export end of coil is communicated with middle pool by drain pipeline, drain valve is set on drain pipeline, overflow control valve is set on the drain pipeline between drain valve and middle pool, overflow pipe is set in the bypass of overflow control valve;The utility model can select steam heating or steam condensate water heating two modes according to the temperature requirement of heating equipment, simple and convenient to operate;When using the waste heat of steam condensate water to heat hot water tank, the waste heat of steam condensate water can be effectively utilized, reduce resource waste, realize energy saving and emission reduction.

Description

Technical Field

[0001] This utility model relates to a device for reusing the heat source of a low-temperature hot water tank for pitavastatin calcium, belonging to the technical field of pitavastatin calcium production equipment. Background Technology

[0002] Currently, in the process of drying pitavastatin calcium wet products, most of the equipment used is a low-temperature vacuum drying oven. During the drying process, the drying temperature is generally controlled between 40-65℃. To ensure temperature stability, steam is often used to heat the heat transfer medium to 80℃, and then the hot water is pumped to the low-temperature vacuum drying oven for heating and drying.

[0003] In pharmaceutical and chemical enterprises, there are many steam heating devices, but the waste heat from steam condensate is usually not effectively utilized, resulting in resource waste. Utility Model Content

[0004] The purpose of this invention is to provide a device for reusing the heat source of a low-temperature hot water tank for pitavastatin calcium. Based on the temperature control requirements of the drying process of pitavastatin calcium, the device modifies the equipment that requires a low-temperature heat source, and uses the waste heat of steam condensate to heat the hot water tank, so that the waste heat of steam condensate can be effectively utilized, reducing resource waste. It is suitable for use in equipment that uses a heat transfer medium of ≤80℃ as a heat source.

[0005] The technical solution of this utility model is as follows: A device for reusing the heat source of a low-temperature hot water tank containing pitavastatin calcium includes a hot water tank and a coil. The coil is installed inside the hot water tank, with both ends passing through the tank body and located outside the tank. The coil is used to heat the heat transfer medium inside the hot water tank, which is used to heat a low-temperature vacuum drying oven. A main control valve is installed at the inlet end of the coil. The steam heating source pipeline and the steam condensate heating source pipeline are respectively connected to the main control valve. A steam heating valve is installed on the steam heating source pipeline, and a steam condensate heating valve is installed on the steam condensate heating source pipeline. The outlet end of the coil is connected to the medium water tank through a drainage pipe. A drainage valve is installed on the drainage pipe. An overflow control valve is installed on the drainage pipe between the drainage valve and the medium water tank. An overflow pipe is installed in the bypass of the overflow control valve.

[0006] As a preferred embodiment of this utility model, the main control valve is a temperature control valve, the hot water tank is equipped with a temperature transmitter, the temperature transmitter is electrically connected to the temperature control valve, and the temperature control valve automatically adjusts the valve opening according to the temperature signal output by the temperature transmitter.

[0007] As a preferred embodiment of this invention, a vent pipe is provided on the top of the hot water tank, and a vent valve is provided on the vent pipe.

[0008] As a preferred embodiment of this invention, a condensate return pipe is provided in the bypass of the steam trap, and a condensate return valve is provided on the condensate return pipe.

[0009] As a preferred embodiment of this invention, the height of the overflow pipe is lower than the height of the inlet end of the coil.

[0010] As a preferred embodiment of this invention, the height of the overflow pipe is 0.8 times the height of the coil inlet end.

[0011] The advantages of this utility model are: It can select between steam heating or steam condensate heating according to the temperature requirements of the heat-using equipment, and realize the switching between the two modes. The operation is simple and convenient. When using the waste heat of steam condensate to heat the hot water tank, the waste heat of steam condensate can be effectively utilized, reducing resource waste and achieving energy conservation and emission reduction. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Meaning of the reference numerals in the diagram: 1-Hot water tank, 2-coil, 3-Hot water pump, 4-vent pipe, 5-vent valve; 6-Main control valve, 7-Drainage pipe, 8-Drainage valve, 9-Overflow control valve; 10-Steam heating source pipeline; 11-Steam heating valve; 12-Temperature transmitter. 20 - Steam condensate heating source pipeline; 21 - Steam condensate heating valve; 22-Condensate return pipe, 23-Condensate return valve, 24-Overflow pipe. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1 As shown, this embodiment is a device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank, including a hot water tank 1 and a coil 2. The coil 2 is installed inside the hot water tank 1, and both ends of the coil 2 pass through the tank body of the hot water tank 1 and are located outside the hot water tank 1. The coil 2 is used to heat the heat transfer medium inside the hot water tank 1. The heat transfer medium inside the hot water tank 1 is used to heat the low-temperature vacuum drying chamber. The heat transfer medium inside the hot water tank 1 is drawn by a hot water pump 3 and pumped to the low-temperature vacuum drying chamber. The heat transfer medium heats the low-temperature vacuum drying chamber and then flows back to the hot water tank 1. A vent pipe 4 is installed at the top of the hot water tank 1, and a vent valve 5 is installed on the vent pipe 4.

[0015] In this embodiment, a main control valve 6 is installed at the inlet end of the coil 2. The main control valve 6 is used to control the opening and closing of the inlet end of the coil 2. The steam heating source pipeline 10 and the steam condensate heating source pipeline 20 are respectively connected to the main control valve 6. A steam heating valve 11 is installed on the steam heating source pipeline 10. The steam heating valve 11 is used to control the opening and closing between the steam heating source pipeline 10 and the main control valve 6. A steam condensate heating valve 21 is installed on the steam condensate heating source pipeline 20. The steam condensate heating valve 21 is used to control the opening and closing between the steam condensate heating source pipeline 20 and the main control valve 6.

[0016] In this embodiment, the outlet end of coil 2 is connected to the medium water tank via a drain pipe 7. A drain valve 8 is installed on the drain pipe 7, and a condensate return pipe 22 is installed in the bypass of the drain valve 8. A condensate return valve 23 is installed on the condensate return pipe 22. An overflow control valve 9 is installed on the drain pipe 7 between the drain valve 8 and the medium water tank, and an overflow pipe 24 is installed in the bypass of the overflow control valve 9. The height of the overflow pipe 24 is lower than the height of the inlet end of coil 2. Specifically, in this embodiment, the height of the overflow pipe 24 is 0.8 times the height of the inlet end of coil 2, in order to keep the coil 2 at a full liquid level and maximize the utilization of the waste heat of steam condensate.

[0017] In this embodiment, the main control valve 6 is a temperature control valve, and the hot water tank 1 is equipped with a temperature transmitter 12. The temperature transmitter 12 is electrically connected to the temperature control valve, and the temperature control valve automatically adjusts the valve opening according to the temperature signal output by the temperature transmitter 12.

[0018] A steam heating source pipeline 10 and a steam condensate heating source pipeline 20 (pressure ≥ 0.25 MPa, temperature 90-100℃) are connected simultaneously before the main control valve 6 of the coil 2 of the hot water tank 1. The steam supplied by the steam heating source pipeline 10 or the steam condensate supplied by the steam condensate heating source pipeline 20 enters the coil 2 to heat the heat transfer medium inside the hot water tank 1. Based on the original drain valve 8 and drain pipe 7 of the coil 2 of the hot water tank 1, an overflow pipe 24 and an overflow control valve 9 are added to the drain pipe 7. At the same time, a condensate return pipe 22 is added to the bypass of the drain valve 8, and a condensate return valve 23 is installed on the condensate return pipe 22.

[0019] When the required temperature of the heat-using equipment (low-temperature vacuum drying oven) is below 80℃, close the steam heating valve 11, open the steam condensate heating valve 21, close the drain valve 8 and the overflow control valve 9, and open the condensate return valve 23. At this time, the steam condensate supplied by the steam condensate heating source pipeline 20 enters the coil 2 to heat the heat transfer medium inside the hot water tank 1. The flow path of the steam condensate is: steam condensate heating source pipeline 20 → steam condensate heating valve 21 → main control valve 6 → coil 2 → condensate return pipe 22 → condensate return valve 23 → overflow pipe 24 → medium water tank.

[0020] When the required temperature of the heat-using equipment (low-temperature vacuum drying oven) is greater than 80℃, close the steam condensate heating valve 21, open the steam heating valve 11, close the condensate return valve 23, and open the drain valve 8 and overflow control valve 9. At this time, the steam supplied by the steam heating source pipeline 10 enters the coil 2 to heat the heat transfer medium inside the hot water tank 1. The steam flow path is: steam heating source pipeline 10 → steam heating valve 11 → main control valve 6 → coil 2 → drain valve 8 → overflow control valve 9 → medium water tank.

[0021] This invention allows for the selection of either steam heating or steam-condensate heating based on the temperature requirements of the heat-using equipment, enabling switching between the two methods. The operation is simple and convenient. When using the waste heat of the steam condensate to heat the hot water tank, the waste heat of the steam condensate can be effectively utilized, reducing resource waste and achieving energy conservation and emission reduction.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "setting," and "forming" should be interpreted broadly; for example, they can refer to fixed connections or settings, detachable connections or settings, or integrated structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components; those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank, comprising a hot water tank and a coil, wherein the coil is disposed inside the hot water tank, and both ends of the coil pass through the tank body and are located outside the hot water tank, characterized in that: A main control valve is installed at the inlet end of the coil. The steam heating source pipeline and the steam condensate heating source pipeline are respectively connected to the main control valve. A steam heating valve is installed on the steam heating source pipeline, and a steam condensate heating valve is installed on the steam condensate heating source pipeline. The outlet end of the coil is connected to the medium water tank through a drainage pipe. A drainage valve is installed on the drainage pipe. An overflow control valve is installed on the drainage pipe between the drainage valve and the medium water tank. An overflow pipe is installed in the bypass of the overflow control valve.

2. The device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank according to claim 1, characterized in that, The main control valve is a temperature control valve. The hot water tank is equipped with a temperature transmitter, which is electrically connected to the temperature control valve. The temperature control valve automatically adjusts its opening degree according to the temperature signal output by the temperature transmitter.

3. The device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank according to claim 1, characterized in that, A vent pipe is installed on the top of the hot water tank, and a vent valve is installed on the vent pipe.

4. The device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank according to claim 1, characterized in that, A condensate return pipe is installed in the bypass of the steam trap, and a condensate return valve is installed on the condensate return pipe.

5. The device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank according to claim 1, characterized in that, The height of the overflow pipe is lower than the height of the inlet end of the coil.

6. The device for reusing the heat source of a pitavastatin calcium low-temperature hot water tank according to claim 5, characterized in that, The height of the overflow pipe is 0.8 times the height of the coil inlet end.

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