Defoaming device

Abstract

The utility model relates to a defoaming device which comprises a vacuum tank, a container, an exhaust assembly and a flow channel assembly, and liquid needing to be defoamed is contained in the container. When the defoaming operation is executed, the cover plate closes the tank body, and the tank body is subjected to air exhaust through the air exhaust assembly, so that negative pressure can be formed in the tank body, and bubbles in liquid are separated out. In the defoaming process, if liquid needs to be continuously added into the containing container, the first control valve is firstly opened, and then the liquid is injected through the flow guide channel. And after the liquid is added, the first control valve is closed, and the air exhaust assembly continuously exhausts air, so that the defoaming operation can be continuously executed. Therefore, when liquid needs to be added into the containing container, the tank body does not need to be opened, the containing container does not need to be repeatedly taken out and put in, and filling can be directly achieved through the flow channel assembly. Therefore, according to the defoaming device, liquid can be conveniently added in the defoaming process.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid treatment, in particular to a defoaming device. Background Art

[0002] In many fields, such as the production process of lithium batteries and semiconductor equipment, liquid materials are often needed for coating, plating, cleaning and other operations. The bubbles remaining in the liquid will have an adverse effect on the production process, so the liquid needs to be defoamed. At present, the common defoaming device is to first fill the container with the liquid to be defoamed, then turn on the negative pressure equipment and put the container in, and finally vacuum it to eliminate the bubbles in the liquid in the container. Since the negative pressure equipment needs to be sealed after the container is placed in the negative pressure equipment, if you want to add liquid to the container, you need to first turn on the negative pressure equipment, then take the container out of it, and then put the container into the negative pressure equipment and seal it after adding the liquid, which makes the operation extremely inconvenient. Utility Model Content

[0003] Based on this, it is necessary to provide a defoaming device that is convenient for adding liquid during the defoaming process to address the above problems.

[0004] A defoaming device, comprising:

[0005] A vacuum tank, comprising a tank body and a cover plate, wherein the cover plate can open or close the tank body;

[0006] A container, which is received in the tank body and can be taken out from the tank body, and the container is used to hold liquid;

[0007] an exhaust assembly, through which air can be evacuated and introduced into the tank; and

[0008] The flow channel assembly includes a guide channel and a first control valve arranged in the guide channel. The guide channel passes through the cover plate and forms a seal with the cover plate, and the guide channel extends to the containing container accommodated in the tank body.

[0009] In one of the embodiments, a transparent window is provided on at least one of the tank body and the cover plate.

[0010] In one embodiment, the exhaust assembly includes an exhaust connector, a negative pressure channel and a positive pressure channel. The exhaust connector passes through the cover plate and is connected to the negative pressure channel and the positive pressure channel. A second control valve and a third control valve are respectively provided on the negative pressure channel and the positive pressure channel.

[0011] In one of the embodiments, a muffler is provided at the end of the positive pressure channel.

[0012] In one of the embodiments, the exhaust assembly further includes a negative pressure gauge connected to the exhaust joint.

[0013] In one embodiment, the exhaust assembly further includes a four-way joint, one interface of the four-way joint is connected to the exhaust joint, and the other three interfaces are respectively connected to the negative pressure channel, the positive pressure channel and the negative pressure gauge.

[0014] In one of the embodiments, the diversion channel includes a through-plate joint and a diversion pipe connected to both ends of the through-plate joint, and the through-plate joint is embedded in the cover plate and forms a seal with the cover plate.

[0015] In one of the embodiments, the flow guide tube is configured as a transparent tube.

[0016] In one of the embodiments, the flow channel assembly further includes a separating funnel, and the separating funnel is connected to an end of the guide channel away from the containing container.

[0017] In one of the embodiments, a bracket is provided on the cover plate, and the bracket includes a support ring and a plurality of support legs, one end of the plurality of support legs is fixed to the cover plate and surrounds the guide channel, the support ring is connected to one end of the plurality of support legs away from the cover plate, and the separatory funnel is carried on the support ring.

[0018] In the above-mentioned defoaming device, the liquid to be defoamed is contained in the holding container. When performing the defoaming operation, the cover plate closes the tank body and evacuates the tank body through the exhaust assembly, so that a negative pressure can be formed in the tank body, thereby causing the bubbles in the liquid to precipitate. During the defoaming process, if it is necessary to continue adding liquid to the holding container, first open the first control valve, and then inject the liquid through the diversion channel. After the liquid is added, close the first control valve, continue to evacuate the air through the exhaust assembly, and then continue to perform the defoaming operation. It can be seen that when it is necessary to add liquid to the holding container, there is no need to open the tank body, nor is there any need to repeatedly take out and put in the holding container, and filling can be achieved directly through the flow channel assembly. Therefore, the above-mentioned defoaming device is convenient for adding liquid during the defoaming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the defoaming device in a preferred embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic structural diagram of the defoaming device from another perspective;

[0022] Figure 3 for Figure 1 A cross-sectional view of the defoaming device shown;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the exhaust assembly in the defoaming device shown;

[0024] Figure 5 for Figure 1 A schematic diagram of the structure of the flow channel assembly in the defoaming device shown;

[0025] Figure 6 for Figure 1 Schematic diagram of the structure of the bracket in the defoaming device shown. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] See also Figure 1 , Figure 2 and Figure 3 The defoaming device 100 in a preferred embodiment of the present invention includes a vacuum tank 110 , a containing container 120 , an exhaust component 130 and a flow channel component 140 .

[0033] The vacuum tank 110 includes a tank body 111 and a cover plate 112, and the cover plate 112 can open or close the tank body 111. When the cover plate 112 closes the tank body 111, the tank body 111 can be evacuated through the exhaust assembly 130, thereby forming a negative pressure in the tank body 111. The container 120 is used to contain liquid, and the container 120 is accommodated in the tank body 111 and can be taken out of the tank body 111. When negative pressure is formed in the tank body 111, bubbles in the liquid in the container 120 can be precipitated and burst, thereby achieving the purpose of defoaming the liquid.

[0034] In this embodiment, at least one of the tank body 111 and the cover plate 112 is provided with a transparent window. The situation inside the tank body 111 can be observed through the transparent window, so that the operator can monitor the defoaming progress and effect in real time. Specifically, the tank body 111 or the cover plate 112 can be formed of a transparent material as a whole, so that the entire side wall of the tank body 111 or the cover plate 112 as a whole serves as a transparent window. In addition, a hole can be partially opened on the tank body 111 or the cover plate 112, and a transparent plate can be covered at the opening to form a transparent window.

[0035] After the liquid in the container 120 is defoamed, the exhaust assembly 130 can also allow air to enter the tank 111, so that the air pressure in the tank 111 returns to normal; then the tank 111 is opened and the container 120 is taken out, and the defoamed liquid can be transferred to the next process. The container 120 can be detachably installed in the tank 111 by means of a snap connection, etc., so as to reduce the risk of the container 120 tipping over.

[0036] Please also read Figure 4 In this embodiment, the exhaust assembly 130 includes an exhaust connector 131, a negative pressure channel 132 and a positive pressure channel 133. The exhaust connector 131 passes through the cover plate 112 and is connected to the negative pressure channel 132 and the positive pressure channel 133. The negative pressure channel 132 and the positive pressure channel 133 are respectively provided with a second control valve 1321 and a third control valve 1331.

[0037] The exhaust connector 131 is generally formed of metal, and has threads at both ends, so it is easy to install. The negative pressure channel 132 and the positive pressure channel 133 can be connected to the inside of the tank body 111 through the exhaust connector 131. When performing the defoaming operation, the second control valve 1321 is opened and the third control valve 1331 is closed, so that the inside of the tank body 111 can be evacuated through the negative pressure channel 132; after the defoaming is completed, the second control valve 1321 is closed and the third control valve 1331 is opened, so that the tank body 111 can be aired through the positive pressure channel 133. It can be seen that only one hole needs to be opened on the cover plate 12 to achieve air extraction and air intake, so the impact on the sealing performance of the cover plate 12 is relatively small.

[0038] An exhaust hose 1322 may be provided at the end of the negative pressure channel 132 to facilitate connecting the negative pressure channel 132 to an air extraction device (not shown). In addition, in this embodiment, a muffler 1332 is provided at the end of the positive pressure channel 133. In this way, when the positive pressure channel 133 is opened for air intake, the noise caused by the airflow can be reduced.

[0039] In this embodiment, the exhaust assembly 130 further includes a negative pressure gauge 134 connected to the exhaust connector 131. The negative pressure gauge 134 can display the real-time pressure value in the tank body 111, so that the operator can judge whether the negative pressure in the tank body 111 meets the defoaming requirement and decide whether to continue to evacuate.

[0040] Furthermore, in this embodiment, the exhaust component 130 also includes a four-way joint 135, one of the interfaces of the four-way joint 135 is connected to the exhaust joint 131, and the other three interfaces are respectively connected to the negative pressure channel 132, the positive pressure channel 133 and the negative pressure gauge 134.

[0041] Each interface of the four-way joint 135 is provided with a thread, so the four-way joint 135 can be connected to the exhaust joint 131 by threaded fastening. In addition, the second control valve 1321, the third control valve 1331 and the negative pressure gauge 134 can also be directly connected to the corresponding interfaces of the four-way joint 135 by threaded matching. In this way, the exhaust assembly 130 can be compact in structure and easy to assemble.

[0042] Specifically, the muffler 1332 can be directly installed on the end of the third control valve 1331 away from the four-way connector 135 by threaded fastening, and the exhaust hose 1322 can also be directly installed on the end of the second control valve 1321 away from the four-way connector 135.

[0043] Please also read Figure 5 The flow channel assembly 140 includes a flow channel 141 and a first control valve 142 disposed in the flow channel 141. The first control valve 142 can control the flow channel 141 to be opened or closed. The flow channel 141 is disposed through the cover plate 112 and forms a seal with the cover plate 112. The flow channel 141 extends into the container 120 accommodated in the tank body 111.

[0044] When defoaming the liquid, there is no need to take the containing container 120 out of the tank body 111. The liquid can be directly injected into the containing container 120 through the guide channel 141, which is simple to operate. Moreover, as the defoaming operation proceeds, the liquid level in the containing container 120 may drop, so liquid can continue to be added to the containing container 120. At this time, the first control valve 142 can be opened first, and then the liquid can be injected through the guide channel 141. After the liquid is added, the first control valve 142 is closed, and the air is continued to be pumped through the exhaust component 130, and the defoaming operation can be continued. It can be seen that when it is necessary to add liquid to the containing container 120, there is no need to open the tank body 111, nor is it necessary to repeatedly take out and put in the containing container 120. The filling can be directly achieved through the flow channel component 140, which is more convenient to operate.

[0045] Furthermore, when adding liquid into the container 120 , since the guide channel 141 extends into the container 120 , the liquid added along the guide channel 141 directly enters the container 120 , thereby effectively preventing liquid from dripping and splashing.

[0046] In this embodiment, the guide channel 141 includes a through-plate joint 1411 and a guide tube 1412 connected to both ends of the through-plate joint 1411. The through-plate joint 1411 is embedded in the cover plate 112 and forms a seal with the cover plate 112. Both ends of the through-plate joint 1411 can be clamped with the cover plate 112 by threaded fasteners, so as to facilitate the formation of a seal with the cover plate 112.

[0047] The flow guide tube 1412 can be a hard tube or a soft tube. Specifically in this embodiment, the flow guide tube 1412 is configured as a transparent tube. In this way, the liquid flowing through the flow guide channel 141 can be observed to determine whether the flow guide tube 1412 is blocked.

[0048] In addition, in this embodiment, the flow channel assembly 140 further includes a separating funnel 143, which is connected to an end of the guide channel 141 away from the holding container 120. The liquid to be defoamed is first added to the separating funnel 143 for buffering, and then the separating funnel 143 releases the liquid to the guide channel 141 when it needs to be added to the holding container 120. The separating funnel 143 can control the amount of liquid released, thereby accurately controlling the amount of liquid added to the holding container 120.

[0049] Please also read Figure 6 In this embodiment, a bracket 150 is provided on the cover plate 112, and the bracket 150 includes a support ring 151 and a plurality of support legs 152. One end of the plurality of support legs 152 is fixed to the cover plate 112 and surrounds the guide channel 141. The support ring 151 is connected to one end of the plurality of support legs 152 away from the cover plate 112, and the separatory funnel 143 is carried on the support ring 151.

[0050] The support ring 151 carries and limits the separating funnel 143, and the plurality of supporting legs 152 can evenly distribute the weight of the separating funnel 143, thereby providing stable support for the separating funnel 143 to prevent the separating funnel 143 from tipping over. Moreover, the guide channel 141 passes through the area surrounded by the plurality of supporting legs 152, thereby saving space.

[0051] In the above-mentioned defoaming device 100, the liquid to be defoamed is contained in the holding container 120. When performing the defoaming operation, the cover plate 112 closes the tank body 111 and evacuates the tank body 111 through the exhaust component 130, so that a negative pressure can be formed in the tank body 111, thereby causing the bubbles in the liquid to precipitate. During the defoaming process, if it is necessary to continue to add liquid to the holding container 120, first open the first control valve 142, and then inject the liquid through the guide channel 141. After the liquid is added, close the first control valve 142, continue to evacuate the air through the exhaust component 130, and then continue to perform the defoaming operation. It can be seen that when it is necessary to add liquid to the holding container 120, there is no need to open the tank body 111, nor is there any need to repeatedly take out and put in the holding container 120, and filling can be directly achieved through the flow channel component 140. Therefore, the above-mentioned defoaming device 100 is convenient for adding liquid during the defoaming process.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A defoaming device, characterized in that: include: A vacuum tank, comprising a tank body and a cover plate, wherein the cover plate can open or close the tank body; A container, which is received in the tank body and can be taken out from the tank body, and the container is used to hold liquid; an exhaust assembly, through which air can be evacuated and introduced into the tank; and The flow channel assembly includes a guide channel and a first control valve arranged in the guide channel. The guide channel passes through the cover plate and forms a seal with the cover plate, and the guide channel extends to the containing container accommodated in the tank body.

2. The defoaming device according to claim 1, characterized in that: At least one of the tank body and the cover plate is provided with a transparent window.

3. The defoaming device according to claim 1, characterized in that: The exhaust assembly includes an exhaust joint, a negative pressure channel and a positive pressure channel. The exhaust joint passes through the cover plate and is connected to the negative pressure channel and the positive pressure channel. A second control valve and a third control valve are respectively provided on the negative pressure channel and the positive pressure channel.

4. The defoaming device according to claim 3, characterized in that: A muffler is arranged at the end of the positive pressure channel.

5. The defoaming device according to claim 3, characterized in that: The exhaust assembly also includes a negative pressure gauge connected to the exhaust joint.

6. The defoaming device according to claim 5, characterized in that: The exhaust assembly also includes a four-way joint, one of the interfaces of the four-way joint is connected to the exhaust joint, and the other three interfaces are respectively connected to the negative pressure channel, the positive pressure channel and the negative pressure gauge.

7. The defoaming device according to claim 1, characterized in that: The guide channel includes a through-plate joint and a guide pipe connected to both ends of the through-plate joint. The through-plate joint is embedded in the cover plate and forms a seal with the cover plate.

8. The defoaming device according to claim 7, characterized in that: The flow guide tube is configured as a transparent tube.

9. The defoaming device according to claim 1, characterized in that: The flow channel assembly further comprises a separating funnel, and the separating funnel is communicated with an end of the guide channel away from the containing container.

10. The defoaming device according to claim 9, characterized in that: A bracket is arranged on the cover plate, and the bracket includes a support ring and a plurality of support legs. One end of the plurality of support legs is fixed to the cover plate and surrounds the guide channel. The support ring is connected to one end of the plurality of support legs away from the cover plate, and the separating funnel is carried on the support ring.

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