CN214830793U - Adjustable automatic explosion-proof valve of crystal growth furnace - Google Patents
Adjustable automatic explosion-proof valve of crystal growth furnace Download PDFInfo
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- CN214830793U CN214830793U CN202120515730.0U CN202120515730U CN214830793U CN 214830793 U CN214830793 U CN 214830793U CN 202120515730 U CN202120515730 U CN 202120515730U CN 214830793 U CN214830793 U CN 214830793U
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Abstract
The utility model discloses an automatic explosion-proof valve with adjustable crystal growth stove, include: a base communicated with the cavity of the crystal growing furnace, a sealing gasket for sealing the base and a shell; the shell, the sealing gasket and the base are sequentially connected through the bolt columns, and a compression space is formed between the shell and the base; this automatic explosion-proof valve with adjustable still includes: the pressure plate is arranged in the compression space, the spring and the pressure sensor are fixedly arranged between one side of the pressure plate and the sealing gasket, the detection controller is electrically connected with the pressure sensor, and the adjusting knob is arranged on the pressure sensor; the pressure sensor is mounted to the hollow portion of the spring; the adjusting knob penetrates through the shell and is pressed to the other side of the pressing sheet. The utility model discloses automatic explosion-proof valve with adjustable crystal growth stove realizes the regulation of explosion-proof valve opening pressure through adjust knob, learns explosion-proof valve opening pressure numerical value through detecting the controller, can realize the accurate regulation of explosion-proof valve opening pressure through adjust knob and the synergism that detects the controller.
Description
Technical Field
The utility model belongs to the technical field of the crystal growth technique and specifically relates to an automatic explosion-proof valve with adjustable crystal growth stove.
Background
The core component of the traditional crystal growth furnace explosion-proof valve only depends on a simple spring structure, the typical structure is shown in figure 1, a spring a is sleeved on a bolt column b, one end of the spring a is abutted to a shell c, the other end of the spring a is abutted to a sealing gasket f connected with a base d, the base d is connected with a cavity of the crystal growth furnace, a sealing ring g is installed between the base d and the sealing gasket f, the shell c is connected with the base d through a plurality of (generally 4) bolt columns b, and the spring a is located between the top of the shell c and the sealing gasket f. The fastening bolt column b can compress the spring a, so that the positive pressure opening value of the explosion-proof valve can be increased to a certain extent, but the adjustment capacity of the bolt column b is limited due to the limited length of the thread section of the bolt column b, a plurality of bolt columns b cannot be uniformly and accurately adjusted, and the pressure is not easy to balance. When the production accident takes place, when the cavity atmospheric pressure of crystal growth stove increases suddenly, explosion-proof valve will open in theory, avoid bigger harm and loss, because the actual opening value of explosion-proof valve can't be detected, the phenomenon that explosion-proof valve excessive pressure is out of work or not reach the operating pressure value and open promptly appears easily, and, along with the increase of explosion-proof valve live time, spring an can constantly change to the compressive stress of sealed pad f, make explosion-proof valve operating pressure can not the close check, the operating pressure of explosion-proof valve is also adjustable.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model aims to provide an automatic explosion-proof valve with adjustable crystal growth stove can obtain and adjust the operating pressure of explosion-proof valve.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an adjustable automatic explosion-proof valve of a crystal growing furnace, comprising: the base is communicated with the cavity of the crystal growth furnace, the sealing gasket is used for sealing the base, and the shell is arranged; the shell, the sealing gasket and the base are sequentially connected through bolt columns, and a compression space is formed between the shell and the base;
this automatic explosion-proof valve with adjustable still includes: the pressure plate is arranged in the compression space, the spring and the pressure sensor are fixedly arranged between one side of the pressure plate and the sealing gasket, the detection controller is electrically connected with the pressure sensor, and the adjusting knob is arranged on the detection controller; the pressure sensor is mounted to the hollow portion of the spring; the adjusting knob penetrates through the shell and is pressed to the other side of the pressing sheet.
Furthermore, an electromagnetic chuck is further installed on one side of the pressing sheet and electrically connected with the detection controller.
Furthermore, a pressurizing spring is sleeved on the bolt column between the sealing gasket and the shell.
Further, the spring is installed to a middle portion of the compression space.
Further, the adjusting knob is an adjusting bolt.
The adjustable automatic explosion-proof valve of the crystal growth furnace can adjust the pressure between the pressing sheet and the sealing gasket and adjust the opening pressure of the adjustable automatic explosion-proof valve by adjusting the contact pressure of the adjusting knob to the pressing sheet; sending the detected pressure value to a detection controller through a pressure sensor so as to obtain the pressure of the crystal growth furnace body at the moment; the adjusting knob is used for adjusting the opening pressure of the explosion-proof valve, the detection controller is used for obtaining the numerical value of the opening pressure of the explosion-proof valve, and the adjusting knob and the detection controller are used for achieving the accurate adjustment of the opening pressure of the explosion-proof valve under the synergistic effect.
Drawings
FIG. 1 is a schematic sectional view of a prior art explosion-proof valve installed in a crystal growth furnace;
FIG. 2 is a schematic cross-sectional view of an adjustable automatic explosion-proof valve of a crystal growth furnace according to an exemplary embodiment of the present invention;
in the figure:
1-tabletting; 2-a spring; 3-a pressure sensor; 4, adjusting a knob; 5, an electromagnetic chuck; 6, a base; 7, sealing gaskets; 8, a shell; 9-bolt columns; 10-sealing ring.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are described below clearly and completely with reference to the drawings in the examples of the present invention, and it is obvious that the described examples are only a part of examples of the present invention, but not all examples. Based on the examples in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish similar items and are not to be construed as requiring a particular order or sequence, and it is to be understood that such uses are interchangeable under appropriate circumstances.
As an example shown in fig. 2, the present invention provides an adjustable automatic explosion-proof valve for crystal growth furnace, comprising: a base 6 communicated with the cavity of the crystal growing furnace, a sealing gasket 7 for sealing the base 6 and a shell 8; the shell 8, the sealing gasket 7 and the base 6 are sequentially connected through a bolt column 9, and a compression space is formed between the shell 8 and the base 6;
this automatic explosion-proof valve with adjustable still includes: the device comprises a pressing sheet 1 arranged in a compression space, a spring 2 and a pressure sensor 3 which are fixedly arranged between one side of the pressing sheet 1 and a sealing gasket 7, a detection controller electrically connected with the pressure sensor 3 and an adjusting knob 4; the pressure sensor 3 is mounted to the hollow portion of the spring 2; the adjusting knob 4 penetrates through the shell 8 and is pressed to the other side of the pressing sheet 1.
According to the adjustable automatic explosion-proof valve of the crystal growth furnace, the size of the contact pressure of the adjusting knob 4 on the pressing sheet 1 is adjusted, namely the length of the spring 2 is changed through the adjusting knob 4, so that the pressure between the pressing sheet 1 and the sealing gasket 7 is adjusted, and the opening pressure of the adjustable automatic explosion-proof valve is adjusted; the detected pressure value is sent to a detection controller through a pressure sensor 3 so as to obtain the pressure of the crystal growth furnace body at the moment; the adjusting knob 4 is used for adjusting the opening pressure of the explosion-proof valve, the detection controller is used for acquiring the numerical value of the opening pressure of the explosion-proof valve, and the adjusting knob 4 and the detection controller are used for achieving the accurate adjustment of the opening pressure of the explosion-proof valve.
It should be noted that the adjustable automatic explosion-proof valve of the present example can be improved on the basis of the existing explosion-proof valve structure. The pressure sensor 3 in this example may use a pressure strain gauge of simple principle. The spring 2 of this example is a high-precision spring.
In this example, an electromagnetic chuck 5 is further installed on one side of the pressing sheet 1, and the electromagnetic chuck 5 is electrically connected with the detection controller.
The detection controller has the following functions: when the adjustable automatic explosion-proof valve does not work, namely the crystal growth furnace does not prepare crystals, the opening pressure of the explosion-proof valve can be accurately adjusted and recorded, and the pressure is preset pressure; when the adjustable automatic explosion-proof valve works (the adjusting knob 4 is not adjusted), the pressure between the pressing sheet 1 and the sealing gasket 7 is obtained through the pressure sensor 3, the pressure is compared with the preset pressure, and when the pressure exceeds the preset pressure, the explosion-proof valve can be automatically opened, namely the sealing gasket 7 is separated from the base 6. When equipment faults such as spring clamping stagnation occur, the explosion-proof valve can not be opened, in order to ensure the opening reliability of the explosion-proof valve, when the pressure exceeds the preset pressure, the detection controller controls the electromagnetic chuck 5 to be electrified to work, the sealing gasket 7 (the sealing gasket 7 is made of iron) is sucked, and the explosion-proof valve is opened. In addition, when an accident occurs and the pressure in the furnace body becomes negative pressure, the detection controller can control the electromagnetic chuck 5 to suck the sealing gasket 7 through the feedback of the pressure sensor 3, so that the cavity of the crystal growth furnace is opened, and the safe use of the crystal growth furnace is ensured.
In other embodiments of the present invention, a pressurizing spring is sleeved on the bolt post 9 between the sealing pad 7 and the housing 8. Can increase explosion-proof valve's cracking pressure like this, because explosion-proof valve's cracking pressure in this example is adjusted through adjust knob 4, need not to adjust bolt post 9 after the reinforcing spring installation and carry out the regulation of pressure, prevent that the problem that the pressure boost spring on many bolt posts 9 is difficult to carry out the even regulation of pressure from appearing.
Referring to fig. 2, the spring 2 of the present example is installed to the middle of the compression space so that the spring 2 and the pressure sensor 3 can be uniformly applied with force.
In the present example, the adjustment knob 4 may be an adjustment bolt. Because the adjusting bolt is simple in structure and easy to process and install, the adjusting selection button 4 in the example is the adjusting bolt, and correspondingly, a through hole or a threaded hole matched with the adjusting bolt is formed in the shell.
Referring to fig. 2, in order to ensure the sealing performance between the sealing gasket 7 and the base 6, a sealing ring 10 is installed at the sealing position of the two.
The working process of the adjustable automatic explosion-proof valve of the crystal growth furnace can be as follows:
1) setting the preset pressure of the explosion-proof valve: according to the actual production demand, when the preset pressure value of the explosion-proof valve is required to be adjusted, the adjusting and adjusting selection button 4 positioned at the top of the shell 8 can be adjusted, the opening pressure value of the explosion-proof valve is increased after the explosion-proof valve is screwed down, and the opening pressure value of the explosion-proof valve is reduced after the explosion-proof valve is loosened. When screwing up or loosening regulation knob 4, all can produce the change effort to the pressure sensor 3 of placing in the middle of spring 2, pressure sensor 3 carries the detection value and detects the controller, it sets up on user terminal to detect control, can also set up the display screen of being connected with the detection controller on the user terminal, can show the pressure value of pressure sensor 3 output through the display screen, the user can directly perceivedly see the current predetermined pressure value that sets for of explosion-proof valve on the terminal.
2) The automatic working process of the explosion-proof valve is as follows: the pressure sensor 3 detects the pressure between the pressing sheet 1 and the sealing gasket 7, and when the detection controller detects that the pressure is greater than the preset pressure, the electromagnetic chuck 5 is controlled to suck the sealing gasket 7, and the cavity of the crystal growth furnace is opened; or when the detection controller detects that the pressure is negative pressure, the electromagnetic chuck 5 is controlled to suck the sealing gasket 7, and the cavity of the crystal growth furnace is opened.
3) Resetting the explosion-proof valve after use: the detection controller can be controlled to cut off the power of the electromagnetic chuck 5, and the positions of all the elements of the explosion-proof valve are restored, and the working processes of 1) and 2) are carried out again.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.
Claims (5)
1. An adjustable automatic explosion-proof valve of a crystal growing furnace, comprising: the base is communicated with the cavity of the crystal growth furnace, the sealing gasket is used for sealing the base, and the shell is arranged; the shell, the sealing gasket and the base are sequentially connected through bolt columns, and a compression space is formed between the shell and the base; it is characterized in that the preparation method is characterized in that,
this automatic explosion-proof valve with adjustable still includes: the pressure plate is arranged in the compression space, the spring and the pressure sensor are fixedly arranged between one side of the pressure plate and the sealing gasket, the detection controller is electrically connected with the pressure sensor, and the adjusting knob is arranged on the detection controller; the pressure sensor is mounted to the hollow portion of the spring; the adjusting knob penetrates through the shell and is pressed to the other side of the pressing sheet.
2. The adjustable automatic explosion-proof valve of crystal growth furnace of claim 1, wherein an electromagnetic chuck is further installed on one side of the pressing sheet, and the electromagnetic chuck is electrically connected with the detection controller.
3. The adjustable automatic explosion-proof valve of crystal growth furnace of claim 1, wherein a pressurizing spring is sleeved on the bolt column between the sealing gasket and the shell.
4. The adjustable automatic explosion-proof valve of crystal growth furnace of claim 1 wherein said spring is mounted to the middle of said compression space.
5. The adjustable automatic explosion-proof valve of crystal growth furnace of claim 1, wherein the adjusting knob is an adjusting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515730.0U CN214830793U (en) | 2021-03-11 | 2021-03-11 | Adjustable automatic explosion-proof valve of crystal growth furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515730.0U CN214830793U (en) | 2021-03-11 | 2021-03-11 | Adjustable automatic explosion-proof valve of crystal growth furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214830793U true CN214830793U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120515730.0U Active CN214830793U (en) | 2021-03-11 | 2021-03-11 | Adjustable automatic explosion-proof valve of crystal growth furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214830793U (en) |
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2021
- 2021-03-11 CN CN202120515730.0U patent/CN214830793U/en active Active
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