Electric heating vacuum concentrator

Abstract

The utility model relates to an electric heating vacuum concentrator which comprises a concentration tank, a preheater, a condenser and a liquid collector, the preheater is arranged on one side of the concentration tank, one end part of the preheater is provided with a first input end, the other end part of the preheater is provided with a first output end, and the first input end is communicated with the first output end; the first input end of the preheater is communicated with the output end of the concentration tank; a second input end close to the first output end is arranged at the lower end of the preheater, and a second output end close to the first input end is arranged at the upper end of the preheater; the condenser is arranged below the preheater, and the input end of the condenser is connected with the first output end of the preheater; the liquid collector is arranged below the condenser, and the input end of the liquid collector is communicated with the output end of the condenser. Compared with the prior art, the material liquid can be effectively preheated, the evaporation speed of the material liquid can be increased, cooling water condensed by evaporated steam of the material liquid can be saved, the operation is simple and convenient, the energy consumption is effectively reduced, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of concentrator technology, and more specifically, to an electrically heated depressurized concentrator. Background Technology

[0002] In industries such as chemical, pharmaceutical, and food processing, the concentration of liquid feed is often required. Traditional rotary evaporator concentration methods suffer from high energy consumption, low efficiency, and complex operation. Reduced pressure concentration technology lowers the boiling point of the solution by reducing system pressure, thus achieving low-temperature concentration and offering advantages such as energy saving and high efficiency. However, existing reduced pressure concentration equipment still suffers from complex structure, low concentration efficiency, high energy consumption, and limited applicability. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, one objective of the present invention is to provide an electrically heated vacuum concentrator that is easy to operate, effectively reduces energy consumption, and improves working efficiency.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An electrically heated vacuum concentrator, comprising:

[0005] Concentration tank;

[0006] A preheater is placed on one side of the concentration tank. One end of the preheater is provided with a first input terminal, and the other end of the preheater is provided with a first output terminal. The first input terminal and the first output terminal are connected. The first input terminal of the preheater is connected to the output terminal of the concentration tank through a pipe. The lower end of the preheater is provided with a second input terminal near the first output terminal, and the upper end of the preheater is provided with a second output terminal near the first input terminal.

[0007] A condenser is fixedly placed below the preheater, and the input end of the condenser is connected to the first output end of the preheater;

[0008] A liquid collector is fixedly placed below the condenser, and the input end of the liquid collector is connected to the output end of the condenser.

[0009] The beneficial effects of this utility model are: using a preheater to preheat the liquid to be concentrated, effectively utilizing the heat energy of the liquid evaporation vapor to increase the temperature of the liquid, and also accelerating the condensation of the liquid evaporation vapor. The operation is simple and effectively reduces energy consumption, greatly improving work efficiency.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, it also includes:

[0012] A first support is fixedly placed at the lower end of the concentration tank.

[0013] The beneficial effect of adopting the above-mentioned further solution is that it improves the stability of the concentration tank during operation by using the first support.

[0014] Furthermore, it also includes:

[0015] The second support is placed on one side of the first support, and the preheater, condenser and liquid collector are fixedly placed on the second support from top to bottom.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the second support improves the stability of the preheater, condenser and liquid collector during operation.

[0017] Furthermore, it also includes:

[0018] A reflux pipe, one end of which is connected to the end of the preheater and the other end of which is connected to the concentration tank.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the use of the reflux pipe can prevent the liquid from escaping from the concentrate.

[0020] Furthermore, it also includes:

[0021] A vacuum device is connected to the liquid collector, and the vacuum device evacuates air from the inside of the liquid collector to reduce the air pressure.

[0022] The beneficial effects of adopting the above-mentioned further solution are: using a vacuum device to accelerate the evaporation rate of the liquid, which can reduce energy consumption and improve the concentration efficiency of the liquid.

[0023] Furthermore, it also includes:

[0024] The liquid collector is fixedly equipped with a partition, which divides the liquid collector into a first cavity and a second cavity. The upper and lower ends of the liquid collector are provided with connecting pipes that connect the first cavity and the second cavity, and valves are provided on both connecting pipes.

[0025] The beneficial effects of adopting the above-mentioned further scheme are: by using a baffle, the liquid collector can ensure that the first chamber receives liquid solvent in an orderly manner to avoid liquid solvent, and also ensure that the low pressure environment of the concentration tank, preheater and condenser is not affected when the second chamber discharges liquid solvent, so as to realize continuous low pressure concentration of the liquid, which is convenient to operate and improves work efficiency.

[0026] Furthermore, it also includes:

[0027] A temperature sensor is fixedly placed inside the jacket of the concentration tank, and the temperature sensor senses the temperature inside the jacket of the concentration tank.

[0028] A pressure sensor is fixedly mounted on the concentration tank, and the pressure sensor senses the gas pressure inside the concentration tank;

[0029] A liquid level sensor is fixedly placed inside the concentration tank, and the liquid level sensor senses the liquid level inside the concentration tank.

[0030] The beneficial effects of adopting the above-mentioned further solution are: the temperature sensor, pressure sensor and liquid level sensor work together to control the liquid in the concentration tank to maintain constant temperature and pressure for continuous concentration, thereby realizing the automated control of the concentration process. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an electrically heated vacuum concentrator according to the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Concentration tank;

[0034] 2. Preheater, 201, first input terminal, 202, first output terminal, 203, second input terminal, 204, second output terminal;

[0035] 3. Condenser;

[0036] 4. Liquid collector; 401. Baffle plate; 402. First chamber; 403. Second chamber; 404. Connecting pipe;

[0037] 5. First support, 6. Second support, 7. Return pipe. Detailed Implementation

[0038] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0039] like Figure 1 As shown, an electrically heated vacuum concentrator includes:

[0040] Concentration tank 1;

[0041] A preheater 2 is placed on one side of the concentration tank 1. One end of the preheater 2 is provided with a first input terminal 201, and the other end of the preheater 2 is provided with a first output terminal 202. The first input terminal 201 and the first output terminal 202 are connected. The first input terminal 201 of the preheater 2 is connected to the output terminal of the concentration tank 1 through a pipe. The lower end of the preheater 2 is provided with a second input terminal 203 near the first output terminal 202, and the upper end of the preheater 2 is provided with a second output terminal 204 near the first input terminal 201.

[0042] Condenser 3 is fixedly placed below preheater 2, and the input end of condenser 3 is connected to the first output end 202 of preheater 2.

[0043] Liquid collector 4 is fixedly placed below the condenser 3, and the input end of the liquid collector 4 is connected to the output end of the condenser 3.

[0044] In this specific application, the tank body of the concentration tank 1 is made of corrosion-resistant stainless steel. An electric heating device is fixedly installed in the jacket at the lower end of the concentration tank 1. The electric heating device is located at the lower end of the tank body. The electric heating device is used to heat the water in the jacket. The water then transfers the heat to the liquid in the tank body. After being heated, the liquid continuously evaporates and concentrates.

[0045] The preheater 2 introduces the liquid to be concentrated through the second input end 203. The liquid to be concentrated exchanges heat with the vapor of the heated and concentrated liquid in the shell side of the preheater 2, thereby preheating the liquid to be concentrated. The preheated liquid enters the concentration tank 1 through the second output end 204 for heating and concentration. The vapor of the liquid enters the preheater 2 through the first input end 201. The vapor of the liquid enters the preheater 2 through the tube side and enters the other end of the preheater 2. During this period, the vapor of the liquid exchanges heat with the liquid to be concentrated in the shell side, thereby preheating the liquid to be concentrated. The vapor of the liquid enters the condenser 3 through the first output end 202 for condensation. The condensed liquid solvent flows into the liquid collector 4.

[0046] In this embodiment, the preheater 2 is used to preheat the liquid to be concentrated, which effectively utilizes the heat energy of the liquid evaporation to increase the temperature of the liquid and can also accelerate the condensation of the liquid evaporation. The operation is simple and effectively reduces energy consumption, greatly improving work efficiency.

[0047] The above embodiments also include:

[0048] The first support 5 is fixedly placed at the lower end of the concentration tank 1.

[0049] In practical applications, the first support 5 is used to support the concentration tank 1, thereby improving the stability of the concentration tank 1 during operation.

[0050] The above embodiments also include:

[0051] The second support 6 is placed on one side of the first support 5, and the preheater 2, condenser 3 and liquid collector 4 are fixedly placed on the second support 6 from top to bottom.

[0052] In practical applications, the second bracket 6 is used to fix and support the preheater 2, condenser 3 and liquid collector 4, thereby improving the stability of the preheater 2, condenser 3 and liquid collector 4 during operation.

[0053] The above embodiments also include:

[0054] The return pipe 7 has one end connected to the end of the preheater 2 and the other end connected to the concentration tank 1.

[0055] In practical applications, the liquid is heated and concentrated in the concentration tank 1, and the vapor from the liquid is evaporated and enters the end of the preheater 2 through the first input end 201. If the vapor carries liquid, the liquid can be returned to the concentration tank 1 for re-concentration using the return pipe 7, thus avoiding carrying some liquid into the condenser 3, which would affect the concentration of the liquid and the purity of the recovered liquid solvent. The return pipe 7 can improve the concentration of the liquid and the purity of the recovered liquid solvent.

[0056] The above embodiments also include:

[0057] A vacuum device is connected to the liquid collector 4, and the vacuum device evacuates air from the inside of the liquid collector 4 to reduce the air pressure.

[0058] In practical applications, a vacuum device is used to evacuate the liquid collector 4, which reduces the air pressure in the concentration tank 1, preheater 2, condenser 3 and liquid collector 4. Under low air pressure, the boiling point of the liquid is lowered, which accelerates the evaporation rate of the liquid, thereby reducing energy consumption and improving the concentration efficiency of the liquid.

[0059] The above embodiments also include:

[0060] The liquid collector 4 is fixedly provided with a partition 401 inside, which separates the liquid collector 4 into a first cavity 402 and a second cavity 403. The upper and lower ends of the liquid collector 4 are provided with connecting pipes 404 that connect the first cavity 402 and the second cavity 403, and valves are provided on both connecting pipes 404.

[0061] In practical application, the partition 401 inside the liquid collector 4 divides the space into a first chamber 402 and a second chamber 403. During normal operation, the valves on both connecting pipes 404 are open, and the liquid levels in the first chamber 402 and the second chamber 403 are the same. When the amount of liquid solvent accumulated in the second chamber 403 exceeds a certain amount, the valves on both connecting pipes 404 are closed simultaneously. The first chamber 402 remains in a low-pressure environment and continues to receive the condensed liquid solvent. The vent valve of the second chamber 403 is opened to bring the second chamber 403 into a normal-pressure environment, and the discharge valve of the second chamber 403 is opened. The liquid solvent in the second chamber 403 is discharged; then the discharge valve and vent valve are closed, and the valves on both connecting pipes 404 are opened to restore the low-pressure environment in the second chamber 403, allowing the liquid solvent accumulated in the first chamber 402 to flow naturally into the second chamber 403. The fixed setting of the baffle 401 in the liquid collector 4 can ensure that the first chamber 402 continuously receives the condensed liquid solvent, and also ensure that the low-pressure environment of the concentration tank 1, preheater 2 and condenser 3 is not affected when the liquid solvent is discharged from the second chamber 403, thus realizing continuous low-pressure concentration of the liquid, which is convenient to operate and improves work efficiency.

[0062] The above embodiments also include:

[0063] A temperature sensor is fixedly placed inside the jacket of the concentration tank 1, and the temperature sensor senses the temperature inside the jacket of the concentration tank 1.

[0064] A pressure sensor is fixedly mounted on the concentration tank 1, and the pressure sensor senses the gas pressure inside the concentration tank 1;

[0065] A liquid level sensor is fixedly placed inside the concentration tank 1, and the liquid level sensor senses the liquid level inside the concentration tank 1.

[0066] In practical applications, the pressure sensor, pressure sensor, and liquid level sensor are connected to the control system. The temperature sensor senses the temperature inside the concentration tank 1 in real time and generates a temperature signal that is transmitted to the control system. The pressure sensor senses the air pressure inside the concentration tank 1 in real time and generates an air pressure signal that is transmitted to the control system. The liquid level sensor senses the liquid level inside the concentration tank 1 in real time and generates a liquid level signal that is transmitted to the control system. The control system uses the temperature signal, air pressure signal, and liquid level signal to regulate the heating, vacuum devices, and feeding speed, so that the liquid in the concentration tank 1 is kept at a constant temperature and pressure for continuous concentration, thereby realizing the automated control of the concentration process.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An electrically heated pressure-reducing concentrator, characterized by, The utility model relates to a kind of condensation device, including: Concentrated tank (1); Preheater (2), the preheater (2) is placed in one side of the concentrated tank (1), and one end of the preheater (2) is provided with first input (201), and the other end of the preheater (2) is provided with first output (202), and first input (201) is communicated with first output (202);The first input (201) of the preheater (2) is communicated with the output of the concentrated tank (1) by pipeline;The lower end of the preheater (2) is provided with second input (203) close to the first output (202), and the upper end of the preheater (2) is provided with second output (204) close to the first input (201); Condenser (3), the condenser (3) is fixedly placed below the preheater (2), and the input of the condenser (3) is connected with the first output (202) of the preheater (2); Liquid collector (4), the liquid collector (4) is fixedly placed below the condenser (3), and the input of the liquid collector (4) is communicated with the output of the condenser (3).

2. An electrically heated pressure reducing concentrator according to claim 1 wherein, Further including: First support (5), the first support (5) is fixedly placed in the lower end of the concentrated tank (1).

3. An electrically heated pressure reducing concentrator according to claim 2 wherein, Further including: Second support (6), the second support (6) is placed in one side of the first support (5), and the preheater (2), condenser (3) and liquid collector (4) are sequentially fixedly placed on the second support (6) from top to bottom.

4. The electrically heated pressure reducing concentrator of claim 1, wherein, Further including: Backflow pipe (7), one end of the backflow pipe (7) is communicated with the end of the preheater (2), and the other end is communicated with the concentrated tank (1).

5. The electrically heated pressure reducing concentrator of claim 1 wherein, Further including: Vacuum device, the vacuum device is communicated with the liquid collector (4), and the vacuum device is extracted to the inside of liquid collector (4) and is reduced air pressure.

6. An electrically heated pressure reducing concentrator according to claim 5 wherein, Further including: The inside of the liquid collector (4) is fixedly provided with baffle (401), the baffle (401) separates the inside of the liquid collector (4) into first cavity (402) and second cavity (403), and the upper end and the lower end of the liquid collector (4) are provided with communication pipe (404) communicated first cavity (402) and second cavity (403), and valve is arranged on two communication pipes (404).

7. The electrically heated pressure reducing concentrator of claim 1 wherein, Further including: Temperature sensor, the temperature sensor is fixedly placed in the jacket of the concentrated tank (1), and the temperature sensor senses the temperature in the jacket of the concentrated tank (1); Pressure sensor, the pressure sensor is fixedly placed on the concentrated tank (1), and the pressure sensor senses the air pressure in the concentrated tank (1); Liquid level sensor, the liquid level sensor is fixedly placed in the concentrated tank (1), and the liquid level sensor senses the liquid level in the concentrated tank (1).

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