Device capable of continuously draining water in vacuum state

Abstract

The utility model discloses a device capable of continuously draining water in a vacuum state. The device comprises a water collecting tank, a first connecting pipe, a second connecting pipe and a draining pump, wherein the water collecting tank is divided into an upper water collecting cavity and a lower water collecting cavity, and the upper water collecting cavity is respectively communicated with an external vacuum unit and the condenser through vacuum pipes; one end of the first connecting pipe is communicated with the condenser, and the other end is communicated with the lower water collecting cavity; a first control valve is arranged on the first connecting pipe; the other end of the second connecting pipe is communicated with the lower water collecting cavity; a second control valve is arranged on the second connecting pipe; an exhaust valve is arranged on one side of the lower water collecting cavity; the drainage pump is communicated with the bottom of the lower water collecting cavity through a third connecting pipe, and a third control valve is arranged on the third connecting pipe. According to the utility model, condensate water in the condenser can be discharged in a vacuum state without shutdown, so that the volume of the water collecting tank is greatly reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water collection equipment for dryers, and particularly relates to a device capable of continuously draining water under a vacuum state. Background Art

[0002] The patent document with the patent number and publication number CN118031574A discloses a tunnel-type microwave vacuum cryogenic drying equipment and a material drying process, which are used for drying materials. The tunnel-type microwave vacuum cryogenic drying equipment includes: a main machine device, which includes a cavity and a plurality of first microwave generators. The cavity is a cylindrical structure, and the cross-sectional shape of the cylinder of the cavity is a regular polygon. The plurality of first microwave generators are respectively arranged on the outer wall surface of the cavity and are at least arranged in sequence along the length direction of the cavity; a vacuum unit, the vacuum port of the vacuum unit is communicated with the cavity through a pipeline; a chiller unit, the cooling water pipe of the chiller unit is communicated with the first microwave generator, and the chiller unit is used to cool the first microwave generator. By utilizing the characteristic that microwave can generate heat through the oscillation of polar molecules, and assisted by the vacuum unit to evacuate the cavity, the water-containing materials in the cavity are rapidly evaporated at low temperature in a vacuum environment to achieve drying, with high drying efficiency. In addition, the materials can be prevented from being damaged due to excessive temperature.

[0003] However, when drying materials, this invention only needs to drain the water in the water collection tank after a batch of materials are dried, and does not need to continuously drain water for a long time under a vacuum state. In addition, the volume of the water collection tank of this invention is relatively large. When technicians develop a continuous microwave vacuum low-temperature liquid drying equipment, this equipment can work continuously for several months or even a year. Therefore, it is necessary to develop a device with a small volume and capable of continuously draining water under a vacuum state. Summary of the Invention

[0004] According to an embodiment of the utility model, a device capable of continuously draining water under a vacuum state is provided, which includes:

[0005] A water collection tank, which is divided into an upper water collection chamber and a lower water collection chamber. The upper water collection chamber is respectively communicated with an external vacuum unit and a condenser through a vacuum pipe;

[0006] A first connecting pipe, one end of the first connecting pipe is communicated with the condenser, and the other end is communicated with the lower water collection chamber; a first control valve is arranged on the first connecting pipe, and the first control valve is used to control the on-off of the first connecting pipe;

[0007] A second connecting pipe, one end of the second connecting pipe is communicated with the upper water collection chamber, and the other end is communicated with the lower water collection chamber; a second control valve is arranged on the second connecting pipe, and the second control valve is used to control the on-off of the second connecting pipe;

[0008] An exhaust valve is arranged on one side of the lower water collection chamber;

[0009] The drain pump is connected to the bottom of the lower water collecting chamber through a third connecting pipe, and a third control valve is arranged on the third connecting pipe. The third control valve is used to control the on-off of the third connecting pipe.

[0010] Furthermore, the bottom of the upper water collecting chamber is connected to the top of the lower water collecting chamber through a second connecting pipe.

[0011] Furthermore, the top of the lower water collecting chamber is connected to the condenser through a first connecting pipe.

[0012] Furthermore, a liquid level gauge is arranged on one side of the top of the lower water collecting chamber.

[0013] Furthermore, the vacuum unit is connected to the condenser through the upper water collecting chamber.

[0014] Furthermore, the first control valve, the second control valve and the third control valve are electromagnetic control valves.

[0015] According to the device capable of continuously draining water under vacuum of the embodiment of the present invention, the condensed water in the condenser can be drained without shutting down the machine under vacuum, greatly reducing the volume of the water collecting tank and improving the production efficiency.

[0016] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the connection relationship between the vacuum unit and the condenser according to the embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram according to the embodiment of the present invention;

[0019] Figure 3 is a cross-sectional view of the water collecting tank according to the embodiment of the present invention. DETAILED DESCRIPTION

[0020] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the drawings, and the present invention will be further elaborated.

[0021] First, the device capable of continuously draining water under vacuum according to the embodiment of the present invention will be described in combination with Figures 1 to 3 which is widely used in the condensation unit of a dryer.

[0022] As Figures 1 to 3 shown, the device capable of continuously draining water under vacuum according to the embodiment of the present invention includes:

[0023] The water collecting tank 1 is divided into an upper water collecting chamber 11 and a lower water collecting chamber 12. The upper water collecting chamber 11 is respectively connected to an external vacuum unit 5 and a condenser 6 through a vacuum tube;

[0024] The first connecting pipe 21, one end of the first connecting pipe 21 is connected to the condenser 6, and the other end is connected to the lower water collecting chamber 12; a first control valve 22 is arranged on the first connecting pipe 21, and the first control valve 22 is used to control the on-off of the first connecting pipe 21;

[0025] The second connecting pipe 31, one end of the second connecting pipe 31 is connected to the upper water collecting chamber 11, and the other end is connected to the lower water collecting chamber 12; a second control valve 32 is arranged on the second connecting pipe 31, and the second control valve 32 is used to control the on-off of the second connecting pipe 31;

[0026] An exhaust valve 121 is arranged on one side of the lower water collecting chamber 12 for emptying the lower water collecting chamber 12;

[0027] The drainage pump 41, the drainage pump 41 is connected to the bottom of the lower water collecting chamber 12 through a third connecting pipe 42, and a third control valve 43 is arranged on the third connecting pipe 42, and the third control valve 43 is used to control the on-off of the third connecting pipe 42.

[0028] Furthermore, as Figure 2 shown, in this embodiment, the bottom of the upper water collecting chamber 11 is connected to the top of the lower water collecting chamber 12 through the second connecting pipe 31.

[0029] Furthermore, as Figure 1 shown, in this embodiment, the top of the lower water collecting chamber 12 is connected to the condenser 6 through the first connecting pipe 21.

[0030] Furthermore, as Figure 1 shown, in this embodiment, a liquid level gauge is arranged on one side of the top of the lower water collecting chamber 12, and the liquid level gauge is used to detect the liquid level in the lower water collecting chamber 12.

[0031] Furthermore, as Figure 1 shown, in this embodiment, the vacuum unit 5 is connected to the condenser 6 through the upper water collecting chamber 11. The vacuum unit 5 extracts the water vapor in the drying chamber of the dryer and liquefies it through the condenser 6, and the liquefied water enters the water collecting tank 1.

[0032] Furthermore, as Figures 1 to 2 shown, in this embodiment, the first control valve 22, the second control valve 32 and the third control valve 43 are electromagnetic control valves, which are convenient for automatic control.

[0033] Working principle:

[0034] During operation, both the upper water collection chamber 11 and the lower water collection chamber 12 are in a vacuum state. The first control valve 22 and the second control valve 32 are opened, and the third control valve 43 is closed. The vacuum unit 5 extracts water vapor from the drying chamber of the dryer and condenses and liquefies it through the condenser 6. The liquefied water flows into the upper water collection chamber 11 and enters the lower water collection chamber 12 through the second connecting pipe 31. When the water level gauge detects that the water in the lower water collection chamber 12 reaches a predetermined position, the first control valve 22 and the second control valve 32 are closed, and the exhaust valve 121 is opened. When the pressure in the lower water collection chamber 12 returns to the normal state, the third control valve 43 is opened, and the drain pump 41 drains the water in the lower water collection chamber 12. Then the third control valve 43 is closed, the first control valve 22 is opened, and after the lower water collection chamber 12 returns to the vacuum state, the second control valve 32 is opened, and the water in the upper water collection chamber 11 continues to flow into the lower water collection chamber 12 due to gravity.

[0035] As described above, with reference to Figures 1 to 3 the device capable of continuously draining water under a vacuum state according to the embodiments of the present invention has been described. It can drain the condensed water in the condenser under a vacuum state without stopping the machine, greatly reducing the volume of the water collection tank and improving the production efficiency.

[0036] It should be noted that in this specification, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0037] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and substitutions to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. A device capable of continuously draining water under vacuum conditions, characterized in that, Comprising: A water collecting tank, which is divided into an upper water collecting chamber and a lower water collecting chamber. The upper water collecting chamber is respectively connected to an external vacuum unit and a condenser through vacuum tubes; A first connecting pipe, one end of which is connected to the condenser and the other end is connected to the lower water collecting chamber. A first control valve is arranged on the first connecting pipe, and the first control valve is used to control the on-off of the first connecting pipe; A second connecting pipe, one end of which is connected to the upper water collecting chamber and the other end is connected to the lower water collecting chamber. A second control valve is arranged on the second connecting pipe, and the second control valve is used to control the on-off of the second connecting pipe; An exhaust valve is arranged on one side of the lower water collecting chamber; A drainage pump, which is connected to the bottom of the lower water collecting chamber through a third connecting pipe. A third control valve is arranged on the third connecting pipe, and the third control valve is used to control the on-off of the third connecting pipe.

2. The device capable of continuously draining water under vacuum conditions according to claim 1, characterized in that, The bottom of the upper water collecting chamber is connected to the top of the lower water collecting chamber through the second connecting pipe.

3. The device capable of continuously draining water under vacuum as claimed in claim 1, wherein, The top of the lower water collecting chamber is connected to the condenser through the first connecting pipe.

4. The device capable of continuously draining water under vacuum as claimed in claim 1, wherein A liquid level gauge is arranged on one side of the top of the lower water collecting chamber.

5. The device capable of continuously draining water under vacuum as claimed in claim 1, characterized in that, The vacuum unit is connected to the condenser through the upper water collecting chamber.

6. The device capable of continuously draining water in a vacuum state according to claim 1, characterized in that, The first control valve, the second control valve and the third control valve are electromagnetic control valves.

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