A dehumidification device for vacuuming

Abstract

The utility model discloses a dehumidification device for vacuuming, comprising: a vacuum cavity, the vacuum cavity is provided with an air extraction port; a vacuum pump, the vacuum pump is used to vacuumize the vacuum cavity, the vacuum pump is provided with a gas inlet; a heating tube, one end of the heating tube is connected to the gas inlet, and the other end is connected to the air extraction port, the vacuum pump vacuumizes the vacuum cavity through the heating tube, the heating tube can heat the gas or liquid inside the heating tube to remove moisture in the gas or the liquid inside the heating tube. By arranging the heating tube between the vacuum pump and the vacuum cavity, the generation of condensed water during the vacuuming process is effectively avoided, and the influence of liquid entering the working cavity of the vacuum pump on the normal operation of the vacuum pump is avoided, thereby ensuring that the vacuum pump maintains a good working state, improving the working efficiency of the vacuum pump, and at the same time can well extend the service life of the vacuum pump and reduce the replacement or maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum application, in particular to a dehumidification device used for vacuuming. Background Art

[0002] In vacuum equipment, a vacuum pump is usually used to evacuate the vacuum chamber of the equipment. However, due to the temperature difference between the room temperature and the working equipment, as well as the influence of atmospheric humidity, during vacuuming, gas is prone to form water droplets in the delivery pipeline, and under the action of air pressure, water droplets enter the working chamber of the vacuum pump along the gas. Excessive moisture entering the working chamber of the vacuum pump will increase the load of the vacuum pump, affect the working efficiency of the vacuum pump, and reduce the service life of the vacuum pump. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a dehumidification device for vacuuming, thereby solving the problem of excessive moisture entering the vacuum pump during vacuuming.

[0004] The technical solution of the utility model is: a dehumidification device used for vacuuming, comprising:

[0005] A vacuum chamber, wherein the vacuum chamber is provided with an air extraction port;

[0006] A vacuum pump, the vacuum pump is used to evacuate the vacuum chamber, and the vacuum pump is provided with a gas inlet;

[0007] A heating tube, one end of which is connected to the gas inlet, and the other end of which is connected to the exhaust port. The vacuum pump evacuates the vacuum chamber through the heating tube. The heating tube can heat the gas or liquid inside the heating tube to remove moisture from the gas or the liquid inside the heating tube.

[0008] Furthermore, the dehumidification device also includes a first sealing joint and a second sealing joint, one end of the heating tube is connected to the gas inlet through the first sealing joint, and the other end of the heating tube is connected to the gas exhaust port through the second sealing joint.

[0009] Furthermore, the heating tube includes a tube body and a heating element, and the heating element is connected to the side wall of the tube body.

[0010] Furthermore, the heating tube comprises a tube body and a heating element, the tube body is provided with a vacuum interlayer, and the heating element is arranged in the vacuum interlayer.

[0011] Furthermore, the dehumidification device also includes a controller and a first humidity sensor, the first humidity sensor is arranged in the vacuum chamber, the first humidity sensor is electrically connected to the controller, and the controller is electrically connected to the heating tube.

[0012] Furthermore, the dehumidification device also includes a second humidity sensor, which is disposed at the gas inlet and is electrically connected to the controller.

[0013] Furthermore, the dehumidification device also includes a temperature controller, which is electrically connected to the heating tube and can control the heating temperature of the heating tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The present application effectively avoids the generation of condensed water during the vacuum pumping process by arranging a heating tube between the vacuum pump and the vacuum chamber, and prevents the liquid from entering the working chamber of the vacuum pump and affecting the normal operation of the vacuum pump, thereby ensuring that the vacuum pump maintains a good working state and improves the working efficiency of the vacuum pump. At the same time, it can better extend the service life of the vacuum pump and reduce replacement or maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the dehumidification device of the present utility model.

[0017] Figure 2 It is a cross-sectional view of the dehumidification device of the utility model.

[0018] Figure 3 A cross-sectional view of the heating tube.

[0019] Figure 4 This is a working principle diagram of the dehumidification device of the utility model.

[0020] Vacuum equipment 1, vacuum chamber 11, exhaust port 12, vacuum pump 2, gas inlet 21, heating tube 3, tube body 31, vacuum interlayer 32, heating element 33, first sealing joint 4, second sealing joint 5, first humidity sensor 6, second humidity sensor 7. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0023] Due to the temperature difference between the room temperature and the working equipment, as well as the influence of atmospheric humidity, during vacuuming, gas is prone to form water droplets in the delivery pipeline. Under the action of air pressure, the gas enters the working chamber of the vacuum pump along the gas. Excessive moisture enters the working chamber of the vacuum pump, which will increase the load of the vacuum pump, affect the working efficiency of the vacuum pump, and reduce the service life of the vacuum pump. In order to solve the above problems, the present application provides a dehumidification device for vacuuming.

[0024] In some embodiments, Figure 1 and Figure 2 As shown, a dehumidification device for vacuuming is provided, comprising:

[0025] A vacuum chamber 11, wherein the vacuum chamber 11 is provided with an air extraction port 12;

[0026] A vacuum pump 2, the vacuum pump 2 is used to evacuate the vacuum chamber 11, and the vacuum pump 2 is provided with a gas inlet 21;

[0027] A heating tube 3, one end of the heating tube 3 is connected to the gas inlet 21, and the other end is connected to the exhaust port 12. The vacuum pump 2 evacuates the vacuum chamber 11 through the heating tube 3. The heating tube 3 can heat the gas or liquid inside the heating tube 3 to remove moisture in the gas or the liquid inside the heating tube 3.

[0028] By providing a heating tube 3, the gas or a small amount of liquid flowing from the vacuum chamber 11 to the vacuum pump 2 is heated, so that water droplets are not easily formed during the transportation of the gas, thereby avoiding the formation of water droplets and liquid. At the same time, the gas and liquid with high humidity entering the heating tube 3 enter the vacuum pump 2 only after being heated and vaporized, thereby extending the service life of the vacuum pump 2.

[0029] In some embodiments, Figure 1 and Figure 2 As shown, the dehumidification device also includes a first sealing joint 4 and a second sealing joint 5, one end of the heating tube 3 is connected to the gas inlet 21 through the first sealing joint 4, and the other end of the heating tube 3 is connected to the air exhaust port 12 through the second sealing joint 5.

[0030] By providing the first sealing joint 4 and the second sealing joint 5, the sealing performance of the vacuuming operation is ensured.

[0031] In some embodiments, the first sealing joint 4 and the second sealing joint 5 are KF25 vacuum joints.

[0032] In some embodiments, Figure 3 As shown, the heating tube 3 comprises a tube body 31 and a heating element 33, and the heating element 33 is connected to the side wall of the tube body 31. Such an arrangement has a simple structure.

[0033] In some embodiments, the tube body 31 is a metal tube with good thermal conductivity, the heating element 33 is an electric heating wire, and the electric heating wire is wound around the outer wall of the tube body 31, or the heating element 33 is a thick film heating circuit, the outer wall of the tube body 31 is provided with an insulating layer, and the thick film heating circuit is printed on the insulating layer.

[0034] In some embodiments, the tube body 31 is a ceramic tube, and the heating element 33 is a thick film heating circuit, which is printed on the outer wall of the tube body 31 , or printed on the inner wall of the tube body 31 .

[0035] In some embodiments, Figure 3 As shown, the heating tube 3 includes a tube body 31 and a heating element 33, wherein the tube body 31 is provided with a vacuum interlayer 32, and the heating element 33 is arranged in the vacuum interlayer 32. By providing the vacuum interlayer 32, the heating element 33 is arranged in the vacuum interlayer 32. Since the heat transfer efficiency in a vacuum environment is low, the heat dissipated outward by the heating element 33 can be reduced, the heating power consumption can be reduced, and the temperature of the outer wall of the heating tube 3 can be prevented from being too high.

[0036] In some embodiments, Figure 1 , Figure 2 and Figure 4 As shown, the dehumidification device also includes a controller and a first humidity sensor 6 . The first humidity sensor 6 is disposed in the vacuum chamber 11 . The first humidity sensor 6 is electrically connected to the controller, and the controller is electrically connected to the heating tube 3 .

[0037] The first humidity sensor 6 is used to detect the humidity in the vacuum cavity 11 and transmit the humidity information to the controller. When the humidity in the vacuum cavity 11 is greater than 70%, the controller controls the heating tube 3 to start heating to prevent the generation of condensed water and vaporize the condensed water that has been generated. When the humidity in the vacuum cavity 11 is detected to be less than 70%, the controller can control the heating tube 3 to stop working. The first humidity sensor 6 and the controller are provided to realize automatic control of the heating tube 3.

[0038] In some embodiments, Figure 1As shown, a plurality of first humidity sensors 6 are provided in the vacuum cavity 11, and the plurality of first humidity sensors 6 are dispersed in the vacuum cavity 11, and the humidity in each direction in the vacuum cavity 11 is detected in real time and an average value is obtained, so as to obtain a more accurate humidity value.

[0039] In some embodiments, six first humidity sensors 6 are disposed in the vacuum chamber 11, and the six first humidity sensors 6 are equidistantly distributed in the vacuum chamber 11. In other embodiments, there may be eight first humidity sensors 6, which is not limited here.

[0040] In some embodiments, Figure 1 , Figure 2 and Figure 4 As shown, the dehumidification device further includes a second humidity sensor 7, and the second humidity sensor 7 is disposed at the gas inlet 21, and the second humidity sensor 7 is electrically connected to the controller.

[0041] The second humidity sensor 7 is used to detect the humidity at the gas inlet 21 of the vacuum pump 2, and transmit the humidity information to the controller. When the first humidity sensor 6 detects that the humidity in the vacuum chamber 11 is less than 70%, but the humidity at the gas inlet 21 is greater than 70%, the controller controls the heating tube 3 to start heating to prevent the generation of condensed water, and at the same time, vaporize the condensed water that has been generated. By setting the second humidity sensor 7, the generation of condensed water in the heating tube 3 due to the influence of temperature difference under normal humidity can be effectively eliminated. When it is detected that the humidity in the vacuum chamber 11 is less than 70% and the humidity at the gas inlet is less than 70%, the controller can control the heating tube 3 to stop working. Automatic control of the heating tube 3 is achieved by setting the first humidity sensor 6, the second humidity sensor 7 and the controller.

[0042] In some embodiments, Figure 4 As shown, the dehumidification device also includes a temperature controller, which is electrically connected to the heating tube 3 and can control the heating temperature of the heating tube 3. The heating temperature of the heating tube 3 is selected by the temperature controller, so that the heating temperature can be set according to the air temperature and humidity to improve the dehumidification efficiency.

[0043] In some embodiments, Figure 1 and Figure 2 As shown, the vacuum chamber 11 is formed in the vacuum equipment 1 , and the suction port 12 is arranged on the side wall or the bottom wall of the vacuum equipment 1 .

[0044] In some embodiments, Figure 4 As shown, the dehumidification device also includes a display, and the first humidity sensor, the second humidity sensor and the temperature controller are all electrically connected to the display. The display can display the humidity in the vacuum chamber, the humidity at the gas inlet and the heating temperature of the heating wire.

[0045] The present application effectively avoids the generation of condensed water during the vacuum pumping process by arranging a heating tube 3 between the vacuum pump 2 and the vacuum chamber 11, and avoids the influence of liquid entering the working chamber of the vacuum pump 2 on the normal operation of the vacuum pump 2, thereby ensuring that the vacuum pump 2 maintains a good working state and improves the working efficiency of the vacuum pump 2. At the same time, it can better extend the service life of the vacuum pump 2 and reduce the replacement or maintenance costs.

[0046] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A dehumidification device for vacuuming, characterized in that: include: A vacuum chamber, wherein the vacuum chamber is provided with an air extraction port; A vacuum pump, the vacuum pump is used to evacuate the vacuum chamber, and the vacuum pump is provided with a gas inlet; A heating tube, one end of which is connected to the gas inlet, and the other end of which is connected to the exhaust port. The vacuum pump evacuates the vacuum chamber through the heating tube. The heating tube can heat the gas or liquid inside the heating tube to remove moisture from the gas or the liquid inside the heating tube.

2. The dehumidification device for vacuuming according to claim 1, characterized in that: It also includes a first sealing joint and a second sealing joint, one end of the heating tube is connected to the gas inlet through the first sealing joint, and the other end of the heating tube is connected to the gas extraction port through the second sealing joint.

3. The dehumidification device for vacuuming according to claim 1, characterized in that: The heating tube comprises a tube body and a heating element, and the heating element is connected to the side wall of the tube body.

4. The dehumidification device for vacuuming according to claim 1, characterized in that: The heating tube comprises a tube body and a heating element. The tube body is provided with a vacuum interlayer, and the heating element is arranged in the vacuum interlayer.

5. The dehumidification device for vacuuming according to claim 1, characterized in that: It also includes a controller and a first humidity sensor, wherein the first humidity sensor is disposed in the vacuum chamber, the first humidity sensor is electrically connected to the controller, and the controller is electrically connected to the heating tube.

6. The dehumidification device for vacuuming according to claim 5, characterized in that: It also includes a second humidity sensor, which is arranged at the gas inlet and is electrically connected to the controller.

7. The dehumidification device for vacuuming according to claim 1, characterized in that: It also includes a temperature controller, which is electrically connected to the heating tube and can control the heating temperature of the heating tube.

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