Vacuum system protection device

Abstract

The utility model provides a vacuum system protection device, and relates to the technical field of machinery. The device is suitable for gas-solid separation of a vacuum system, and can be used for protection of a vacuum pump, collection of powder products and the like. The device is composed of a shell, a filter element, a rotary knocking vibrator, a sealing block and the like, a gas-solid mixture is filtered through the filter element, solid substances remain on the surface of the filter element, clean gas is discharged through a vacuum pump, and the solid substances on the filter element fall off under the action of the rotary knocking vibrator in the filter element and are concentrated on a lower conical section of the shell; in addition, the filter element can be used for a long time, and the situation that the exhaust effect becomes poor due to the fact that the filter element is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a vacuum system protection device. Background Art

[0002] A vacuum furnace is a common heating furnace and a crucial piece of production equipment in industries such as powder metallurgy, high-temperature graphitization, and specialty ceramics production. The high vacuum required by a vacuum furnace is provided by a vacuum pump. As a precision device, a vacuum pump cannot tolerate excessive amounts of solid impurities, making pre-filtering of the vacuum pump crucial. Adding a pre-filter to the vacuum pump's air inlet effectively blocks solid matter from entering the pump. However, over time, the pre-filter can easily become clogged due to adsorbed solid matter, affecting the vacuum level of the entire system. If the filter uses gas backflush to remove solid impurities, the introduction of backflush gas can also affect the stability of the entire vacuum system.

[0003] Although patent CN218948282U can generally filter out dust impurities and prevent them from entering equipment components to reduce equipment failure rate and extend equipment service life, this design is effective for general impurity separation and filtration. If it is used for precision equipment components with higher precision requirements, its impurity filtering and protection effect is also very limited, and the overall equipment component cannot be used on vacuum equipment, which has certain application limitations. In addition, the filter element needs to be replaced frequently, which on the one hand increases the material cost of the filter element, and on the other hand requires the equipment to be suspended to replace the filter element, reducing work efficiency.

[0004] In order to solve the above problems and optimize and improve the solution, the utility model provides a protective device that can effectively clean the filter element without affecting the vacuum degree of the vacuum system. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a vacuum system protection device, which can be used as a pre-stage protection for a vacuum pump in a vacuum system, or as a product collection device for high-temperature sublimation purification equipment. It has the characteristics of easy disassembly and assembly, excellent sealing performance, long service life, and will not affect the stability of the vacuum system.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The utility model provides a vacuum system protection device, comprising: a shell, wherein the side walls of the shell are respectively provided with a feed channel and an air outlet channel, and the clean gas outlet channel is externally connected to a vacuum pump, and the mixture after the reaction in the reaction container enters the shell from the feed channel under the action of the vacuum pump, and the mixture is processed inside the shell and the clean gas is discharged from the air outlet channel; a filter element is placed in the center position of the shell, and silicone sealing pads are placed at the upper and lower ends of the filter element for sealing, and the size of the filter element matches the size of the shell, and the two ends abut against each other to fix the filter element vertically in the center position of the shell; a rotating percussion vibrator An opening that matches the size of the rotary percussion vibrator is provided on the top of the shell. The rotary percussion vibrator is inserted into the shell from the opening and is located in the center of the filter element. The two are concentric circles in the top view; the sealing block is mounted on the rotary percussion vibrator from top to bottom and is fixed on the upper surface of the shell to seal the shell opening. Its main purpose is to ensure the airtight stability inside the protective device and allow the vacuum pump to work with maximum efficiency to suck out the clean gas; the motor is installed on the top of the rotary percussion vibrator to drive the rotary percussion vibrator to rotate.

[0010] Furthermore, the shell is composed of an upper shell and a lower shell, which are matched in size and connected up and down. The upper shell is a hollow cylinder and the lower shell is a hollow cone.

[0011] Furthermore, a feed channel is provided on the side wall of the upper shell, and an air outlet channel is provided on the lower shell.

[0012] Furthermore, the filter element is shaped like a hollow n-gonal cylinder, where n>2 and is an integer. The filter element is made of metal, including but not limited to stainless steel, titanium, and tin bronze. During the operation of the vacuum system protection device, the filter element will adsorb impurities in the mixture entering the feed channel to achieve the purpose of filtering and removing impurities.

[0013] Furthermore, the rotary percussion vibrator is composed of a rotating shaft, an elastic percussion rod and a percussion steel ball.

[0014] Furthermore, the rotating shaft is divided into several layers, each layer being provided with a plurality of elastic knocking rods, each end of which is provided with a knocking steel ball. The number of elastic knocking rods per layer is designed to be n. The number of elastic knocking rods is adapted to the shape of the filter element to ensure that an appropriate number of knocking steel balls act on the filter element to ensure that mixed impurities fall from the filter element, while preventing damage and deformation of the filter element due to excessive knocking steel balls, thereby shortening its service life.

[0015] Furthermore, the elastic knocking rod is made of, but not limited to, a rigid spring, a spring sheet, and a silicone rod. The elastic knocking rod material has a certain hardness and can support the knocking steel ball to knock on the inner surface of the filter element with appropriate force during the plane rotation process.

[0016] Furthermore, the sealing block is provided at the housing opening in the form of an O-ring seal. The shape of the O-ring is adapted to the shape and size of the rotating shaft component of the rotary percussion vibrator and is provided at the housing opening to ensure airtight stability within the housing.

[0017] (3) Beneficial effects

[0018] The present invention provides a vacuum system protection device, which mainly includes four parts: a shell, a filter element, a rotary percussion vibrator and a sealing block. It has the characteristics of easy disassembly and assembly and excellent sealing performance. Through the clever combination of the design between the various component units, the impurities in the mixture are separated to a great extent and retained in the shell to ensure that the gas sucked out by the vacuum pump is clean enough, which has a significant effect on the front-stage protection of the vacuum pump in the vacuum system. In addition, if it is necessary to collect solid impurities in the mixture during the process operation, the device can also be well recovered and retained. At the same time, the design of the rotary percussion vibrator percussing the filter element can greatly prevent the problem of the filter element being blocked due to the adsorption of too many solid impurities, thereby reducing the number of times the device is disassembled and the number of times the filter element is replaced, and extending the operation continuity of the device and the service life of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 This is a schematic structural diagram of a vacuum system protection device provided by the utility model;

[0021] Figure 2 This is a top view of the filter element and rotary percussion vibrator component structure provided by the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] Shell 1, upper shell 11, lower shell 12, feed channel 111, air outlet channel 121, filter element 2, rotary percussion vibrator 3, rotating shaft 31, elastic percussion rod 32, percussion steel 33, sealing block 4, motor 5. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0027] This embodiment provides a vacuum system protection device, such as Figure 1 As shown, it includes a shell 1, a filter element 2, a rotary percussion vibrator 3, a sealing block 4 and a motor 5, wherein the shell 1 includes an upper shell 11 and a lower shell 12, the side wall of the upper shell 11 is provided with a feed channel 111, and the lower shell 12 is provided with an air outlet channel 121, and the rotary percussion vibrator 3 includes a rotating shaft 31, an elastic percussion rod 32 and a percussion steel ball 33.

[0028] In this embodiment, the side walls of the housing 1 are respectively provided with a feed channel 111 and an outlet channel 121. The feed channel 111 is externally connected to the reaction vessel, and the clean gas outlet channel 121 is externally connected to a vacuum pump. The purpose of the vacuum system protection device is to protect the vacuum pump and allow as much clean gas as possible to enter the vacuum pump. The mixture in the reaction vessel is reacted and enters the housing 1 through the feed channel 111 under the action of the vacuum pump. After the mixture is processed inside the housing 1, the clean gas is discharged from the outlet channel 121. The filter element 2, as an important component for filtering the mixture, is placed vertically in the center of the housing 1. Silicone sealing gaskets are placed at the upper and lower ends of the filter element 2, and the size matches the size of the housing 1. The two ends are abutted to fix the filter element 2 vertically in the center of the housing 1. An opening matching the size of the rotary percussion vibrator 3 is opened at the top of the housing 1. The rotary percussion vibrator 3 can be inserted into the housing 1 through this opening and is located in the center of the filter element 2. The filter element 2 and the rotary percussion vibrator 3 are concentric circles in the top view. Sealing block 4 is fitted over rotary percussion vibrator 3 from top to bottom, positioned on the upper surface of housing 1 to seal the opening of housing 1. This ensures airtight stability within the protective device, allowing the vacuum pump to operate with maximum efficiency to extract clean gas. Motor 5 is mounted on top of rotary percussion vibrator 3, located outside housing 1, driving it to rotate.

[0029] The shell 1 consists of an upper shell 11 and a lower shell 12, which are matched in size and connected up and down. The upper shell 11 is a hollow cylinder and the lower shell 12 is a hollow cone. The upper and lower shells are combined to form the shell 1. The lower shell 11 can hold solid impurities during the separation process of the mixture. When too many impurities are held, the upper shell 11 and the lower shell 12 can be separated to pour out the excess solid impurities.

[0030] In this embodiment, the filter element 2 is shaped like a hollow hexagonal cylinder and is made of metal stainless steel. During the operation of the vacuum system protection device, the mixed impurities entering from the feed channel 111 will pass through the filter element 2. The filter element 2 remains fixed relative to the shell 1, filtering out the solid impurities to achieve the purpose of filtering and removing impurities.

[0031] In this embodiment, the rotating shaft 31 of the rotary percussion vibrator 3 is divided into seven equal layers, each layer being provided with six elastic percussion rods 32, each of which is provided with a percussion steel ball 33 at its end. The number of elastic percussion rods 32 is adapted to the shape of the filter element 2. This is to ensure that an appropriate number of percussion steel balls 33 act on the filter element 2 to the greatest extent possible, thereby ensuring that mixed impurities fall from the filter element 2, and that the filter element 2 is not damaged or deformed by the excessive percussion of the steel balls 33, thereby shortening its service life.

[0032] In this embodiment, the elastic striking rod 32 is made of a rigid spring. The material of the elastic striking rod 32 has a certain degree of hardness and softness, and can support the striking steel ball 33 to strike the inner surface of the filter element 2 with appropriate force during the plane rotation operation, thereby clearing the solid impurities accumulated on the surface of the filter element 2, thereby extending the service life of the filter element 2.

[0033] The sealing block 4 is provided at the opening of the housing 1 in the form of an O-ring seal. The shape of the O-ring matches the shape and size of the rotating shaft 31 of the rotary percussion vibrator 3 and is provided at the opening of the housing 1 to ensure airtight stability within the housing 1.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vacuum system protection device, characterized in that: The vacuum system protection device comprises: A housing, wherein the side walls of the housing are respectively provided with a feed channel and an air outlet channel, and the air outlet channel is externally connected to a vacuum pump; The filter element is placed in the center of the housing. Silicone sealing pads are placed at the upper and lower ends of the filter element for sealing. The size of the filter element matches the size of the housing. The two ends abut to fix the filter element vertically in the center of the housing. A rotary percussion vibrator, wherein the top of the housing is provided with an opening matching the size of the rotary percussion vibrator, and the rotary percussion vibrator is inserted into the housing through the opening and located at the center of the filter element; A sealing block is sleeved on the rotary percussion vibrator from top to bottom and is fixed on the upper surface of the shell to seal the shell opening; A motor is installed on the top of the rotary percussion vibrator.

2. The vacuum system protection device according to claim 1, characterized in that: The shell consists of an upper shell and a lower shell, which are matched in size and connected up and down. The upper shell is a hollow cylinder, and the lower shell is a hollow cone.

3. The vacuum system protection device according to claim 2, characterized in that: The side wall of the upper shell is provided with the feed channel, and the lower shell is provided with the air outlet channel.

4. The vacuum system protection device according to claim 1, characterized in that: The filter element is in the shape of a hollow n-gonal cylinder, where n>2 and is an integer. The filter element is made of metal, including one of stainless steel, titanium metal, and tin bronze.

5. The vacuum system protection device according to claim 1, characterized in that: The rotary knocking vibrator consists of a rotating shaft, an elastic knocking rod and a knocking steel ball.

6. The vacuum system protection device according to claim 5, characterized in that: The rotating shaft is divided into m layers, m>2 and is an integer, each layer is provided with a number of elastic knocking rods, the ends of the elastic knocking rods are provided with the knocking steel balls, and the number of the elastic knocking rods in each layer is designed to be n.

7. The vacuum system protection device according to claim 5, characterized in that: The elastic knocking rod is made of a material selected from the group consisting of a rigid spring, a spring sheet, and a silicone rod.

8. The vacuum system protection device according to claim 1, characterized in that: The sealing block is arranged at the housing opening in an O-ring sealing manner.

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