Cooling circulation device

Abstract

A cooling circulation device provides cooling circulation for a condenser pipe through a recoverable cooling medium, has the advantages of water saving, power superposition, automatic filling, emptying and recycling and the like, and is convenient for a user to mount, use and dismount.

Description

Technical Field

[0001] The present invention relates to a cooling circulation device, belonging to the fields of medicine, food, and chemistry, and in particular to a cooling circulation device for a condenser tube. Background Art

[0002] Condenser tubes are often used in the reflux reactions of organic synthesis and the reflux preparations of traditional Chinese medicine extractions, and are applicable to liquids with various boiling points. In the fields of scientific research, petrochemical industry, pharmaceutical industry, medical and health, etc., they are used in combination with distillation flasks and elbow joints in distillation, fractional distillation or reflux devices to condense steam and agglomerate liquid droplets. Before use, the condenser tube is washed. At the water inlet (lower opening) of the condenser tube, a rubber tube is connected to a water source, and another rubber tube is connected to the water outlet (upper opening) to facilitate the outflow of cooling wastewater.

[0003] During the use of the condenser tube, tap water often needs to be passed through for cooling. However, some chemical reactions require reflux reactions for several days, which means that tap water needs to be continuously supplied, resulting in a large amount of water resource waste. Moreover, there is a risk of water overflowing onto the laboratory bench, causing water leakage and electric leakage, and there are potential safety hazards such as short circuits and fires. After use, the tap water needs to be turned off, the rubber tubes need to be unplugged, and the tap water in the condenser tube needs to be emptied. This operation is rather cumbersome, often splashing water on the bench, and there is often a risk of knocking and damaging the condenser tube during the process of turning over the condenser tube. Summary of the Invention

[0004] Aiming at the above defects of the existing treatment methods, the purpose of the present invention is to provide a cooling circulation device. This device is small and convenient to place on the experimental bench. When in use, it is connected to the lower and upper openings of the condenser tube. A thermoelectric cooler provides a continuous cooling medium for the condenser tube, and the temperature of the cooling medium is adjustable. Users can adjust the refrigeration effect according to their needs, saving water resources. When in use, the present invention automatically fills the condenser tube, and after use, it automatically empties and recovers the cooling medium in the condenser tube. Users only need to remove the condenser tube.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A cooling cycle device, comprising a first flowmeter (1), a peristaltic pump (2), a first three-way solenoid valve (3), a circulation pump (4), a refrigeration module (5), a second flowmeter (6), a second three-way solenoid valve (7), a controller (8) and a liquid storage bottle (9). The first flowmeter (1) is connected to the lower outlet of the liquid storage bottle (9) and the peristaltic pump (2). The peristaltic pump (2) is connected to the first flowmeter (1) and the first three-way solenoid valve (3). The first three-way solenoid valve (3) is connected to the peristaltic pump (2), the circulation pump (4) and the second three-way solenoid valve (7). The circulation pump (4) is connected to the first three-way solenoid valve (3) and the refrigeration module (5). The refrigeration module (5) is connected to the circulation pump (4) and the lower outlet of the condenser tube (10). The second flowmeter (6) is connected to the upper outlet of the condenser tube (10) and the second three-way solenoid valve (7). The second three-way solenoid valve (7) is connected to the second flowmeter (6), the first three-way solenoid valve (3) and the upper outlet of the liquid storage bottle (9). The controller (8) performs operations such as filling, circulating refrigeration, emptying and recycling according to the user-set program.

[0006] Preferably, the cooling cycle device further includes an on-line thermometer, which is located between the refrigeration module (5) and the lower outlet of the condenser tube (10) to monitor the temperature of the refrigeration medium.

[0007] Preferably, multiple devices of the cooling cycle device can be used in series to provide different power refrigeration outputs according to user needs.

[0008] Preferably, the cooling cycle device further includes a combustible gas sensor and a smoke sensor to monitor the reflux reaction area and give an alarm in case of an accident. Beneficial effects

[0009] (1) The present invention uses a cooling medium with a freezing point below 0 degrees, having high cooling efficiency, being recyclable, and saving water resources.

[0010] (2) Before use, the cooling cycle device of the present invention can automatically fill the cooling medium, stop automatically when full, and start the cooling cycle. After use, it can automatically empty the cooling medium, stop automatically after emptying, and prompt the user, which is convenient for the user to install and remove the condenser tube.

[0011] (3) Multiple devices of the present invention can be used in series and are also applicable when a relatively large condensation volume is required (such as a rotary evaporator).

[0012] (4) The present invention can adjust the temperature of the refrigeration medium, enabling the user to adjust the refrigeration effect according to experimental needs.

[0013] (5) The present invention can be switched to a heating mode to provide a heat preservation function when the user needs heat preservation (such as during distillation).

[0014] (6) The device of the present invention has a low cost and occupies very little space, and can be conveniently placed on the experimental table by the user.

[0015] (7) The present invention is equipped with a smoke sensor and a combustible gas sensor, which can monitor the heating reflux reaction area and give an alarm in time in case of an accident. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the device of Embodiment 1 of the cooling circulation device of the present invention In the figure: 1. The first flowmeter, 2. The peristaltic pump, 3. The first three-way solenoid valve, 4. The circulation pump, 5. The refrigeration module, 6. The second flowmeter, 7. The second three-way solenoid valve, 8. The controller, 9. The liquid storage bottle, 10. The condenser.

[0017] Figure 2 is the structure diagram of the cooling circulation device of the present invention Embodiment

[0018] The following will introduce the preferred embodiments of the present invention in detail with reference to the drawings. Example

[0019] As Figure 1 shown, a cooling circulation device includes a first flowmeter, a peristaltic pump, a first three-way solenoid valve, a circulation pump, a refrigeration module, a second flowmeter, a second three-way solenoid valve, a liquid storage bottle, a condenser, and a controller.

[0020] The working procedure of the cooling circulation device is as follows: Assembly: After assembling the condenser device, connect the lower opening of the condenser to the outlet on the left side of this device, connect the upper opening of the condenser to the inlet on the left side of this device, connect the inlet on the right side of this device to the lower opening of the liquid storage bottle, and connect the outlet on the right side of this device to the upper opening of the liquid storage bottle.

[0021] Filling: The first three-way solenoid valve (3) is connected to the peristaltic pump (2), the second three-way solenoid valve (7) is connected to the upper opening of the liquid storage bottle (9), the peristaltic pump (2) is opened in the forward direction, and at the same time the circulation pump (4) is opened, so that the liquid in the circulation pump (4) circulates out synchronously. The cooling medium is pumped from the liquid storage bottle (9) into the system and fills the condenser (10). When the second flowmeter (6) detects that there is liquid flowing through, the peristaltic pump (2) is closed after a few seconds of delay to fill the system with the cooling medium.

[0022] Circulating refrigeration: The first three-way solenoid valve (3) is connected to the second three-way solenoid valve (7), and the second three-way solenoid valve (7) is connected to the first three-way solenoid valve (3) to form a refrigeration circuit. Open the circulation pump (4) and the refrigeration module (5) to perform circulating cooling on the condenser (10), and the user can adjust the refrigeration power as needed.

[0023] Emptying and recycling: After use, the first three-way solenoid valve (3) is connected to the peristaltic pump (2), and the second three-way solenoid valve (7) is connected to the upper opening of the liquid storage bottle (9). The peristaltic pump (2) is turned on in reverse to empty the cooling medium in the pipeline and the condenser tube (10) and return it to the liquid storage bottle (9). When the first flow meter (1) monitors that there is no liquid flowing through for several seconds, the peristaltic pump (2) is turned off, and the medium in the system is recovered into the liquid storage bottle (9).

[0024] Online mode: Connect two or more of these devices in series and work normally according to the single-device process to complete power superposition.

Claims

1. A cooling circulation device, comprising a first flowmeter (1), a peristaltic pump (2), a first three-way solenoid valve (3), a circulation pump (4), a refrigeration module (5), a second flowmeter (6), a second three-way solenoid valve (7), a controller (8) and a liquid storage bottle (9). The first flowmeter (1) is connected to the lower outlet of the liquid storage bottle (9) and the peristaltic pump (2). The peristaltic pump (2) is connected to the first flowmeter (1) and the first three-way solenoid valve (3). The first three-way solenoid valve (3) is connected to the peristaltic pump (2), the circulation pump (4) and the second three-way solenoid valve (7). The circulation pump (4) is connected to the first three-way solenoid valve (3) and the refrigeration module (5). The refrigeration module (5) is connected to the circulation pump (4) and the lower outlet of the condenser tube (10). The second flowmeter (6) is connected to the upper outlet of the condenser tube (10) and the second three-way solenoid valve (7). The second three-way solenoid valve (7) is connected to the second flowmeter (6), the first three-way solenoid valve (3) and the upper outlet of the liquid storage bottle (9). The controller (8) performs filling, circulating refrigeration, and emptying and recycling operations according to the user-set program.

2. The cooling cycle device according to claim 1, characterized in that: The cooling circulation device further includes an online thermometer, which is located between the refrigeration module (5) and the lower outlet of the condenser tube (10) to monitor the temperature of the refrigeration medium.

3. A cooling cycle device according to claims 1-2, characterized in that: Multiple such cooling circulation devices can be connected in series to superimpose the refrigeration power.

4. A cooling cycle device according to claims 1-3, characterized in that: The cooling circulation device further includes a combustible gas sensor and a smoke sensor to monitor the reflux reaction area and give an alarm in a timely manner in case of an accident.

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