Cooling recovery device for vacuum thickener

Abstract

The utility model belongs to the field of vacuum concentrators, and particularly relates to a cooling recovery device for a vacuum concentrator, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a storage tank, the top of the storage tank is communicated with a collecting pipe, the surface of the collecting pipe is provided with an electromagnetic valve, the top of the collecting pipe is communicated with a condensing box, and the condensing box is provided with an electromagnetic valve. The left side of the condensation box communicates with an air inlet pipe, a condensation pressure maintaining assembly is arranged at the top of the condensation box, a primary condensation assembly is arranged at the top of the air inlet pipe, and the primary condensation assembly comprises a second condenser; by arranging the condensation pressure maintaining assembly and the pressure measuring valve, the pressure intensity of an inner cavity of the condensation box can be detected, the vacuum pump is used for guaranteeing the pressure intensity of the inner cavity of the condensation box, the problem that the condensation effect is poor due to pressure intensity changes can be avoided, and by arranging the primary condensation assembly, gas can be pre-condensed through circulating water and then deeply condensed through low-temperature cooling liquid, so that the condensation effect is improved. And the recovery efficiency can be improved through multi-stage condensation.

Description

Technical Field

[0001] This utility model relates to the field of vacuum concentrators, specifically a cooling recovery device for vacuum concentrators. Background Technology

[0002] Vacuum concentrators are typically used to evaporate solvents in low-pressure environments, such as in chemical or food processing to concentrate solutions. The role of the cooling and recovery device should be to condense and recover the volatile solvent vapors during the evaporation process to avoid waste and environmental pollution, while maintaining the vacuum level of the system.

[0003] The cooling recovery devices for concentrators currently on the market are usually designed as an integral part of the concentrator body. This means that if the recovery device is damaged during material recovery and cooling, the entire device needs to be disassembled and repaired. Moreover, the existing cooling recovery devices for vacuum concentrators only have a single condensation and liquefaction function during operation and do not have a pressure maintenance function. When the volume of liquefied gas decreases, the pressure inside the recovery device changes, which can easily affect the condensation effect. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and address the problem that existing devices only have single-stage condensation and liquefaction functions and lack pressure maintenance functions, and that when the volume of liquefied gas decreases, the pressure inside the recovery device changes, which can easily affect the condensation effect, this utility model proposes a cooling recovery device for a vacuum concentrator.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A cooling recovery device for a vacuum concentrator includes a base plate, a storage tank fixedly connected to the top of the base plate, a collection pipe connected to the top of the storage tank, a solenoid valve provided on the surface of the collection pipe, a condensation box connected to the top of the collection pipe, an air inlet pipe connected to the left side of the condensation box, a condensation pressure holding assembly provided at the top of the condensation box, a preliminary condensation assembly provided at the top of the air inlet pipe, the preliminary condensation assembly including a second condenser, and a third circulation pipe provided at the bottom of the second condenser.

[0007] The condensation and pressure holding assembly includes a first condenser, a first circulation pipe at the bottom of the first condenser, a second circulation pipe at the top of the first condenser, an insulation sleeve at the other end of the second circulation pipe, a drive motor fixedly connected to the back of the insulation sleeve, a fan blade fixedly connected to the output shaft of the drive motor, a pressure testing valve connected to the right side of the condensation chamber, a vacuum pump fixedly connected to the top of the base plate, a pressure pipe connected to the top of the vacuum pump, and the other end of the pressure pipe connected to the surface of the pressure testing valve.

[0008] Preferably, the third circulation pipe is arranged in a spiral shape inside the air intake pipe, and the cooling medium inside the third circulation pipe is circulating water.

[0009] By setting a third circulation pipe in a spiral arrangement inside the intake pipe, the cooling efficiency of the second condenser can be guaranteed, and the gas can be pre-condensed by circulating water.

[0010] Preferably, the insulation sleeve is fitted onto the surface of the pressure pipe, and through grooves are provided on both the left and right sides of the insulation sleeve, with sealing gaskets provided in the inner cavity of the through grooves.

[0011] By setting a sealing gasket, the overall sealing performance of the insulation jacket can be guaranteed, preventing liquid leakage. The insulation jacket can also cool the gas injected into the condenser chamber by the vacuum pump, ensuring the condensation effect of the first condenser.

[0012] Preferably, both the storage tank and the condenser are equipped with liquid level sensors, and there are two liquid level sensors, which are a high-level sensor and a low-level sensor, respectively.

[0013] By setting up a liquid level sensor, the liquid is automatically discharged when it reaches a certain amount, avoiding overfilling of the condenser and storage tank. The low-level sensor ensures that there is no gas exchange space between the condenser and the storage tank when the liquid is poured into the storage tank, preventing external air from entering the condenser cavity and affecting its pressure.

[0014] Preferably, the first circulation pipe is arranged in a U-shaped plate shape in the inner cavity of the condenser, and the cooling medium in the inner cavity of the first circulation pipe is a low-temperature coolant.

[0015] By arranging the first circulation pipe in a U-shaped plate pattern inside the condenser, the condensation efficiency of the first condenser is further improved.

[0016] Preferably, the inner diameter of the intake pipe increases from left to right, and a flange is fixedly connected to the left side of the intake pipe.

[0017] Preferably, a control box is fixedly connected to the top of the base plate, the bottom of the condenser box is funnel-shaped, and the output end of the control box is electrically connected to the input end of the first condenser and the second condenser.

[0018] The advantages of this novel cooling recovery device for a vacuum concentrator are as follows: by setting up a condensation and pressure-maintaining component, a pressure measuring valve can detect the pressure inside the condensation chamber, and a vacuum pump is used to ensure the pressure inside the condensation chamber, thus avoiding the problem of poor condensation effect caused by pressure changes; by setting up a preliminary condensation component, the gas can be pre-condensed by circulating water first, and then deeply condensed by low-temperature coolant, and multi-stage condensation can improve the recovery efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the cooling and recovery device for the vacuum concentrator of this utility model;

[0020] Figure 2 This is a schematic diagram of the condenser box.

[0021] Figure 3 for Figure 2 A magnified view of part A in the image;

[0022] Figure 4 This is a schematic diagram of the collection tube structure;

[0023] Figure 5 This is a schematic diagram of the fan blade structure;

[0024] Figure 6 This is a schematic diagram of the insulation jacket.

[0025] In the diagram: 1. Base plate; 2. Storage tank; 3. Collection pipe; 4. Solenoid valve; 5. Condensation box; 6. Inlet pipe; 7. Condensation and pressure holding assembly; 701. First condenser; 702. First circulation pipe; 703. Second circulation pipe; 704. Insulation jacket; 705. Drive motor; 706. Fan blade; 707. Pressure measuring valve; 708. Vacuum pump; 709. Pressurization pipe; 8. Preliminary condensation assembly; 801. Second condenser; 802. Third circulation pipe; 9. Sealing gasket; 10. Liquid level sensor; 11. Flange; 12. Control box; 13. Through groove. Detailed Implementation

[0026] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A cooling recovery device for a vacuum concentrator according to this specific embodiment includes a base plate 1, a storage tank 2 fixedly connected to the top of the base plate 1, a collection pipe 3 connected to the top of the storage tank 2, a solenoid valve 4 provided on the surface of the collection pipe 3, a condensation box 5 connected to the top of the collection pipe 3, an air inlet pipe 6 connected to the left side of the condensation box 5, a condensation pressure holding assembly 7 provided at the top of the condensation box 5, a preliminary condensation assembly 8 provided at the top of the air inlet pipe 6, the preliminary condensation assembly 8 including a second condenser 801, and a third circulation pipe 802 provided at the bottom of the second condenser 801;

[0028] Reference Figure 6The condensation and pressure-holding assembly 7 includes a first condenser 701, a first circulation pipe 702 at the bottom of the first condenser 701, a second circulation pipe 703 at the top of the first condenser 701, and an insulation sleeve 704 at the other end of the second circulation pipe 703. A drive motor 705 is fixedly connected to the back of the insulation sleeve 704, and a fan blade 706 is fixedly connected to the output shaft of the drive motor 705. A pressure testing valve 707 is connected to the right side of the condensation chamber 5, and a vacuum pump 708 is fixedly connected to the top of the base plate 1. The top of the pump 708 is connected to a pressurization pipe 709, and the other end of the pressurization pipe 709 is connected to the surface of the pressure measuring valve 707. By setting the condensation pressure holding component 7, the pressure measuring valve 707 can detect the pressure inside the condensation chamber 5. The vacuum pump 708 is used to ensure the pressure inside the condensation chamber 5, which can avoid the problem of poor condensation effect caused by pressure changes. By setting the preliminary condensation component 8, the gas can be pre-condensed by circulating water first, and then deeply condensed by low temperature coolant. Multi-stage condensation can improve the recovery efficiency.

[0029] Reference Figure 4 The third circulation pipe 802 is arranged in a spiral shape inside the air inlet pipe 6, and the cooling medium inside the third circulation pipe 802 is circulating water. By setting the third circulation pipe 802 in a spiral shape inside the air inlet pipe 6, the cooling efficiency of the second condenser 801 can be guaranteed, and the gas can be pre-condensed by circulating water.

[0030] Reference Figure 4 and Figure 5 The insulation sleeve 704 is fitted onto the surface of the pressure tube 709. The insulation sleeve 704 has through grooves 13 on both the left and right sides, and the inner cavity of the through grooves 13 is provided with sealing gaskets 9. By setting the sealing gaskets 9, the overall sealing performance of the insulation sleeve 704 can be guaranteed to avoid liquid leakage. The insulation sleeve 704 can cool the gas injected into the inner cavity of the condenser box 5 by the vacuum pump 708, so as to ensure the condensation effect of the first condenser 701.

[0031] Reference Figure 2 Both the storage tank 2 and the condenser 5 are equipped with two liquid level sensors 10, one for high level and one for low level. By setting up the liquid level sensors 10, the liquid is automatically discharged when it reaches a certain amount, thus preventing the condenser 5 and the storage tank 2 from becoming too full. The low level sensor can prevent external air from entering the inner cavity of the condenser 5 and affecting its pressure when the condenser 5 is filling the storage tank 2, as there is no gas exchange between the condenser 5 and the storage tank 2.

[0032] Reference Figure 2 and Figure 3The first circulation pipe 702 is arranged in a U-shaped plate shape in the inner cavity of the condenser 5, and the cooling medium in the inner cavity of the first circulation pipe 702 is a low-temperature coolant. By setting the first circulation pipe 702 in a U-shaped plate shape in the inner cavity of the condenser 5, the condensation efficiency of the first condenser 701 is further improved.

[0033] Reference Figure 4 The inner diameter of the air inlet pipe 6 increases from left to right. A flange 11 is fixedly connected to the left side of the air inlet pipe 6. By setting the inner diameter of the air inlet pipe 6 to increase from left to right, liquid reverse osmosis is avoided.

[0034] Reference Figure 1 and Figure 2 A control box 12 is fixedly connected to the top of the base plate 1. The bottom of the condenser box 5 is designed in the shape of a funnel. The output end of the control box 12 is electrically connected to the input end of the first condenser 701 and the second condenser 801. Intelligent control is achieved by designing the control box 12.

[0035] Working principle: The device is connected to the outlet of the vacuum concentrator via flange 11. The second condenser 801 drives the circulating water to circulate within its inner cavity. The third circulation pipe 802 within the inner cavity of the inlet pipe 6 can initially cool the high-temperature gas. Then, the gas enters the inner cavity of the condenser 5 through the inlet pipe 6. The first condenser 701 drives the low-temperature coolant to flow in the first circulation pipe 702 and the second circulation pipe 703. The drive motor 705 starts, and the output shaft of the drive motor 705 drives the fan blades 706 to rotate, which can make the temperature of the low-temperature coolant in the inner cavity of the insulation jacket 704 uniform. The first circulation pipe 702 can perform deep condensation on the gas. The condensed water is stored at the bottom of the condenser 5. When the high-level sensor in its inner cavity detects the liquid level... When the liquid is being poured into the storage tank 2, the solenoid valve 4 opens, and the hydraulic pressure enters the inner cavity of the storage tank 2 through the collection pipe 3. When the low-temperature sensor in the inner cavity of the condenser 5 detects the liquid, the solenoid valve 4 closes. This ensures that there is no gas exchange space between the condenser 5 and the storage tank 2 when the liquid is being poured into the condenser 5, preventing external air from entering the inner cavity of the condenser 5 and affecting its pressure. The pressure measuring valve 707 can detect the pressure in the inner cavity of the condenser 5. When the gas liquefies, the internal pressure decreases, and the vacuum pump 708 injects gas into the inner cavity through the pressurization pipe 709 to maintain the internal pressure. The gas injected through the pressurization pipe 709 is pre-cooled through the insulation jacket 704, which can prevent the temperature of the injected gas from being different from the temperature of the gas in the inner cavity of the condenser 5, thus avoiding a reduction in the condensation effect of the second condenser 801.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cooling and recovery device for a vacuum concentrator, characterized in that: Includes a base plate (1), a storage tank (2) is fixedly connected to the top of the base plate (1), a collection pipe (3) is connected to the top of the storage tank (2), a solenoid valve (4) is provided on the surface of the collection pipe (3), a condenser box (5) is connected to the top of the collection pipe (3), an air inlet pipe (6) is connected to the left side of the condenser box (5), a condensation pressure holding assembly (7) is provided on the top of the condenser box (5), a preliminary condensation assembly (8) is provided on the top of the air inlet pipe (6), the preliminary condensation assembly (8) includes a second condenser (801), and a third circulation pipe (802) is provided at the bottom of the second condenser (801). The condensation and pressure holding assembly (7) includes a first condenser (701), a first circulation pipe (702) is provided at the bottom of the first condenser (701), a second circulation pipe (703) is provided at the top of the first condenser (701), the other end of the second circulation pipe (703) is connected to an insulation sleeve (704), a drive motor (705) is fixedly connected to the back of the insulation sleeve (704), a fan blade (706) is fixedly connected to the output shaft of the drive motor (705), a pressure testing valve (707) is connected to the right side of the condensation box (5), a vacuum pump (708) is fixedly connected to the top of the base plate (1), a pressure pipe (709) is connected to the top of the vacuum pump (708), and the other end of the pressure pipe (709) is connected to the surface of the pressure testing valve (707).

2. The cooling recovery device for a vacuum concentrator according to claim 1, characterized in that: The third circulation pipe (802) is arranged in a spiral shape in the inner cavity of the air intake pipe (6), and the cooling medium in the inner cavity of the third circulation pipe (802) is circulating water.

3. The cooling recovery device for a vacuum concentrator according to claim 1, characterized in that: The insulation sleeve (704) is fitted onto the surface of the pressure tube (709). The insulation sleeve (704) has through grooves (13) on both the left and right sides, and the inner cavity of the through grooves (13) is provided with sealing gaskets (9).

4. The cooling recovery device for a vacuum concentrator according to claim 1, characterized in that: The inner cavities of the storage tank (2) and the condenser (5) are each equipped with a liquid level sensor (10). There are two liquid level sensors (10), and the two liquid level sensors (10) are a high level sensor and a low level sensor, respectively.

5. A cooling recovery device for a vacuum concentrator according to claim 1, characterized in that: The first circulation pipe (702) is arranged in a U-shaped plate shape in the inner cavity of the condenser (5), and the cooling medium in the inner cavity of the first circulation pipe (702) is a low-temperature coolant.

6. The cooling recovery device for a vacuum concentrator according to claim 1, characterized in that: The inner diameter of the air intake pipe (6) increases from left to right, and a flange (11) is fixedly connected to the left side of the air intake pipe (6).

7. A cooling recovery device for a vacuum concentrator according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a control box (12), the bottom of the condenser box (5) is designed in the shape of a funnel, and the output end of the control box (12) is electrically connected to the input end of the first condenser (701) and the second condenser (801).

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