Safety stop valve and hot air oven system, control method, device and medium

By designing a safety shutoff valve in the hot air oven system, collecting volatiles and controlling the cylinder movement to stop exhaust, the problem of hot air oven fire spread is solved, and the safety and reliability of the system is improved.

CN111895775BActive Publication Date: 2025-01-14DONGGUAN SHENGYI ELECTRONICS
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Patent Information

Application Number
CN202010883262.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-28
Publication Date
2025-01-14
Estimated Expiration
2040-08-28

AI Technical Summary

Technical Problem

The hot air oven has a fire safety risk during use, and the return of volatiles causes the fire to spread, causing serious property losses and casualties.

Method used

Design a safety shut-off valve, including a bent pipe and an oil connector, collects the volatile oily liquid through the bent pipe bending structure, and controls the cylinder and separator to promptly cut off the exhaust air from the hot air oven to the main air duct. Prevent the spread of fires.

Benefits of technology

Effectively collect reflux volatiles, reduce fire risks, improve the working safety of hot air ovens, and close the shutoff valve in time when fire is discovered to prevent the fire from spreading, and improve the safety and reliability of the entire system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a safety stop valve and a hot air oven system, a control method, a device and a medium. The safety stop valve comprises an elbow, the elbow comprises an air inlet and an air outlet, and a first through hole is provided at the bottom of the elbow; an oil receiver, the oil receiver is used to connect with the elbow through the first through hole; a cylinder, a second through hole is provided on the side of the cylinder, and the elbow is used to connect with the cylinder through the second through hole; a sealer, the sealer is arranged at the first end of the cylinder, and a third through hole is provided on the sealer; a cylinder, the cylinder comprises a piston rod, the piston rod passes through the third through hole and extends into the cylinder; a spacer, the spacer is connected to one end of the piston rod extending into the cylinder, and the spacer is airtightly fitted with the inner wall of the cylinder. The safety stop valve is provided with an oil receiver, which can effectively collect the oily liquid that is liquefied after volatilization, prevent it from dripping into the hot air oven, reduce the possibility of causing fire risks, and improve the safety of the hot air oven. The present invention can be widely used in the technical field of hot air ovens.
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Description

Technical Field

[0001] The invention relates to the technical field of hot air ovens, in particular to a safety stop valve and a hot air oven system, a control method, a device and a medium. Background Art

[0002] Hot air oven is a kind of equipment suitable for baking chemical gas and food processing industry to bake items, such as ink curing, paint film drying, etc. It is widely used in electronics, motors, communications, electroplating, plastics, hardware chemicals, instruments, printing, pharmaceuticals, PC boards, impregnation, spraying, glass, wood building materials and other materials or products for precision baking, drying, tempering, preheating, shaping, processing procedures. Using hot air oven can make the baked objects heated evenly, and the obtained product quality is very high.

[0003] Generally speaking, in order to facilitate production, multiple hot air ovens in a factory share a main air duct system to exhaust hot air. However, the hot air oven itself carries certain fire safety risks. A typical example is that certain volatiles (oil components) flow back from the inner wall of the exhaust duct into the hot air oven, causing smoke and fire accidents. If the hot air oven catches fire, the fire will quickly spread to the entire exhaust system through the main air duct, causing serious safety accidents to the entire factory, resulting in huge property losses and casualties. Therefore, the problems existing in the above-mentioned prior art urgently need to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve one of the technical problems existing in the prior art to at least a certain extent.

[0005] To this end, one purpose of an embodiment of the present application is to provide a safety stop valve, which is provided with an oil receiver, which can effectively collect the oily liquid that liquefies after volatilization to prevent it from dripping into the hot air oven, thereby reducing the possibility of causing fire risks and improving the safety of the hot air oven.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the embodiments of the present application include:

[0007] In a first aspect, an embodiment of the present application provides a safety stop valve, comprising:

[0008] An elbow, the elbow comprising an air inlet and an air outlet, and a first through hole is provided at the bottom of the elbow;

[0009] an oil receiver, the oil receiver being used to be connected to the elbow through the first through hole;

[0010] A cylinder body, wherein a second through hole is provided on a side of the cylinder body, and the bent pipe is used to be connected to the cylinder body through the second through hole;

[0011] A sealer, the sealer is arranged at the first end port of the cylinder body, and the sealer is provided with a third through hole;

[0012] A cylinder, the cylinder comprising a piston rod, the piston rod extending into the cylinder body through the third through hole;

[0013] A diaphragm is connected to one end of the piston rod extending into the cylinder body, and the diaphragm is in airtight contact with the inner wall of the cylinder body.

[0014] In addition, the safety stop valve according to the above embodiment of the present invention may also have the following additional technical features:

[0015] Furthermore, in one embodiment of the present invention, the safety stop valve further comprises:

[0016] A cylinder fixing seat, wherein the cylinder fixing seat is used to vertically fix the cylinder on the sealer.

[0017] Furthermore, in one embodiment of the present invention, the safety stop valve further comprises:

[0018] A front air intake pipe is connected to the second end port of the cylinder body.

[0019] Further, in one embodiment of the present invention, the sealer and / or the spacer are made of a heat insulating material.

[0020] In a second aspect, an embodiment of the present application provides a hot air oven system, including a hot air oven, a main air duct, and a safety stop valve as described in the first aspect;

[0021] The hot air oven comprises a hot air exhaust duct, wherein the hot air exhaust duct is connected to the front air inlet pipe, and the air outlet is connected to the main air duct.

[0022] In addition, the hot air oven system according to the above embodiment of the present invention may also have the following additional technical features:

[0023] Furthermore, in one embodiment of the present invention, the system further comprises:

[0024] An exhaust device is connected to the main air duct.

[0025] In a third aspect, an embodiment of the present application provides a control method for a hot air oven system, which is used to control the system according to the second aspect, and comprises the following steps:

[0026] Detecting the temperature in the hot air oven;

[0027] When it is determined that the temperature is higher than a preset temperature threshold, the cylinder is controlled to move so that the partition moves in the cylinder body to a position lower than the second through hole. The method can timely and effectively cut off the exhaust of the hot air oven to the main air duct, preventing the fire inside the hot air oven from spreading to the entire exhaust system.

[0028] In a fourth aspect, an embodiment of the present application provides a control device for a hot air oven system, comprising:

[0029] at least one processor;

[0030] at least one memory for storing at least one program;

[0031] When the at least one program is executed by the at least one processor, the at least one processor implements the control method of the hot air oven system according to the third aspect.

[0032] In a fifth aspect, an embodiment of the present application further provides a medium in which processor-executable instructions are stored. When the processor-executable instructions are executed by the processor, they are used to implement the control method of the hot air oven system described in the third aspect.

[0033] The advantages and beneficial effects of the present invention will be partly given in the following description, partly become apparent from the following description, or be understood through the practice of the present invention:

[0034] In the device embodiment of the present application, the safety stop valve comprises a bend pipe and an oil receiver, the bend pipe comprises an air inlet and an air outlet, and a first through hole is provided at the bottom of the bend pipe; the oil receiver is used to be connected to the bend pipe through the first through hole; when the safety stop valve is used for ventilation of the hot air oven system, the oily liquid that evaporates in the hot air oven and then liquefies in the pipeline can be effectively gathered through the bending structure of the bend pipe, and the oily liquid is introduced into the oil receiver through the first through hole for collection, so as to prevent the oily liquid from flowing back and dripping into the hot air oven to cause a fire, thereby improving the safety of the operation of the hot air oven; in the method embodiment of the present application, when the temperature of the hot air oven is higher than the preset temperature threshold, the cylinder is controlled to move so that the partition moves in the cylinder body to a position lower than the second through hole, thereby cutting off the exhaust of the hot air oven to the main air duct, thereby preventing the fire inside the hot air oven from spreading to the entire exhaust system, thereby improving the safety of the operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following introduction is made to the drawings of the embodiments of the present application or the related technical solutions in the prior art. It should be understood that the drawings introduced below are only for the convenience of clearly describing some embodiments of the technical solutions of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 It is a structural schematic diagram of an existing hot air oven system;

[0037] Figure 2 A schematic structural diagram of a specific embodiment of a safety stop valve provided in this application;

[0038] Figure 3 A schematic diagram of the structure of a specific embodiment of a safety stop valve provided in the present application when it is opened;

[0039] Figure 4 A schematic diagram of the structure of a specific embodiment of a safety stop valve provided in the present application when closed;

[0040] Figure 5 A flowchart of a specific embodiment of a control method for a hot air oven system provided in the present application;

[0041] Figure 6 A schematic structural diagram of a specific embodiment of a control device for a hot air oven system provided in the present application. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limitations of the present invention. For the step numbers in the following embodiments, they are only provided for the convenience of explanation, and the order between the steps is not limited in any way, and the execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

[0043] In the description of the present invention, it should be understood that the terms "length", "up", "down", "front", "back", "left", "right", "top", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Reference Figure 1 , the current ventilation duct connection method of the hot air oven system in the existing factory, Figure 1 In the embodiment, the hot air oven system includes a hot air oven 100, a ventilation pipe 200, a main air duct 300 and an exhaust device. The gas generated in the hot air oven 100 is directly fed into the main air duct 300 and discharged through the exhaust device. In this embodiment, some volatile substances (such as oil components) contained in the gas may be liquefied on the ventilation pipe 200, and then flow back into the hot air oven 100 through the ventilation pipe 200, and adhere to the surface of the heater to cause local overheating and smoke and fire. The entire hot air oven system generally contains many hot air ovens 100, all of which are ventilated through the above-mentioned main air duct 300. Once one of the hot air ovens 100 catches fire, the fire will quickly spread to the entire hot air oven system through the connected main air duct 300, causing unpredictable losses to the entire factory. Based on the above problems, a safety stop valve with an oil receiver is provided in the embodiment of the present application, which can collect the refluxed volatiles (oil components) to prevent the volatiles from dripping into the hot air oven 100 and causing safety risks; at the same time, a control method for a hot air oven system is also provided, which can close the above safety stop valve in time when a fire is found, thereby blocking the spread of fire, improving the safety and reliability of production, and avoiding and reducing the occurrence of accidents as much as possible.

[0046] A safety stop valve proposed according to an embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0047] Reference Figure 2 , the safety stop valve provided in the embodiment of the present application comprises:

[0048] The elbow 2 includes an air inlet and an air outlet, and a first through hole 18 is provided at the bottom of the elbow 2;

[0049] The oil receiver 1 is used to connect with the elbow 2 through the first through hole 18; specifically, the two can be detachably connected together through a connecting piece 9, so that the oil receiver 1 can be removed at any time to clean the oil therein;

[0050] The cylinder body 4 has a second through hole 20 on its side, and the elbow 2 is used to connect with the cylinder body 4 through the second through hole 20;

[0051] The sealer 6 is disposed at the first end of the cylinder body 4, and a third through hole is provided on the sealer 6; specifically, the sealer 6 may include a sealing plate 14 and a first bolt 15, and the first bolt 15 is used to fix the sealing plate 14 on the cylinder body 4;

[0052] The cylinder 7 includes a piston rod, and the piston rod passes through the third through hole and extends into the cylinder body 4;

[0053] The spacer 17 is connected to one end of the piston rod extending into the cylinder body 4, and the spacer 17 is in air-tight fit with the inner wall of the cylinder body 4; specifically, the outer ring of the spacer 17 can be installed with the corresponding elastic material 5 to make the elastic material 5 and the inner wall of the cylinder body 4 in air-tight fit, and the middle part of the spacer 17 includes a hole 16 for the piston rod to pass through. After the piston rod passes through, it is fixed by a set of front end nuts 11 and spacer 17.

[0054] In the embodiment of the present application, a safety stop valve is provided, the overall ventilation structure of which is arranged in a curved shape, and an oil receiver 1 is arranged at the bottom of the curve, and the volatile matter (mainly oil component) refluxed from the hot air oven can be collected through the oil receiver 1 to prevent the volatile matter from dripping into the hot air oven, thereby reducing the probability of fire and improving the safety of using the hot air oven. In the embodiment of the present application, the number of oil receivers 1 of each safety stop valve is not fixed to 1, and extending the length of the curved pipe 2 and arranging multiple oil receivers 1 is also an optional implementation scheme.

[0055] Reference Figure 3 , 4 In the embodiment of the present application, the safety stop valve realizes the two states of opening and closing by driving the diaphragm 17 by the cylinder 7. Specifically, refer to Figure 3 When the safety stop valve drives the diaphragm 17 to move to a position higher than the second through hole 20 in the cylinder body 4 through the cylinder 7, the safety stop valve is in an open state, and gas can freely enter and exit the safety stop valve; Figure 4When the safety stop valve drives the diaphragm 17 to move to a position lower than the second through hole 20 in the cylinder body 4 through the cylinder 7, the safety stop valve is in a closed state, and the gas cannot freely enter or exit the safety stop valve.

[0056] As an optional implementation, in the embodiment of the present application, the safety stop valve may also include:

[0057] The cylinder fixing seat 8 is used to vertically fix the cylinder 7 on the sealer 6. Optionally, in the embodiment of the present application, the cylinder fixing seat 8 may include a fixing bracket 13 and a screw 12. By vertically fixing the cylinder 7, it is more convenient for the cylinder 7 to move up and down, and prevent the piston rod in the cylinder body 4 from being skewed and stuck.

[0058] As an optional implementation, in the embodiment of the present application, the safety stop valve may also include:

[0059] The front end air intake pipe 3 is connected to the second end port of the cylinder body 4 .

[0060] In the embodiment of the present application, a front air inlet pipe 3 is provided for connecting with a hot air exhaust pipe of the hot air oven. Specifically, the two can be connected via a section of a connecting sleeve 10.

[0061] As an optional implementation, in the embodiment of the present application, the sealer 6 and / or the spacer 17 are made of a heat-insulating material. Optionally, for example, the heat-insulating material may be polyvinylidene fluoride (PVDF). By making the sealer 6 and / or the spacer 17 of the heat-insulating material, when a fire occurs in the hot air oven, the spread of the fire to the main air duct can be prevented as much as possible. It can be understood by those skilled in the art that the material selection of other components in the embodiment of the present application can be flexibly selected as needed, for example, stainless steel is used; and the size of each component only needs to be adapted and is not fixed to a specific model.

[0062] The embodiment of the present application also provides a hot air oven system, comprising: a hot air oven, a main air duct and the safety stop valve as described above;

[0063] The hot air oven comprises a hot air exhaust duct, the hot air exhaust duct is connected to the front air inlet duct, and the air outlet is connected to the main air duct.

[0064] As an optional implementation, the system further includes:

[0065] An exhaust device is connected to the main air duct.

[0066] It can be seen that the contents of the above-mentioned safety stop valve embodiments are all applicable to the present system embodiments. The functions specifically implemented by the present system embodiments are the same as those of the above-mentioned safety stop valve embodiments, and the beneficial effects achieved are also the same as those achieved by the above-mentioned safety stop valve embodiments.

[0067] Reference Figure 5 In an embodiment of the present application, a control method for a hot air oven system is provided. Based on this method, the working state of the safety stop valve in the system can be effectively controlled to improve the safety of the system operation. The method mainly includes the following steps:

[0068] S1. Detect the temperature in the hot air oven;

[0069] S2. Determine that the temperature is higher than a preset temperature threshold, and control the cylinder to move so that the spacer moves in the cylinder body to a position lower than the second through hole.

[0070] In the embodiment of the present application, by detecting the temperature in the hot air oven, when it is found that the temperature in the hot air oven exceeds the normal value, that is, when there is a risk of fire, the safety shut-off valve is promptly controlled to close, so as to prevent the fire in the hot air oven from spreading to the main air duct and affecting other hot air ovens in the system, thereby reducing losses. Figure 4 As can be seen from the above description, controlling the safety shut-off valve to close means causing the diaphragm to move in the cylinder body to a position lower than the second through hole.

[0071] As an optional implementation, the method in the embodiment of the present application further includes the following steps:

[0072] S3, detect the oil level height of the oil receiver;

[0073] S4. Determine that the oil level is higher than a preset height threshold, and control the cylinder to move so that the spacer moves in the cylinder body to a position lower than the second through hole.

[0074] In the embodiment of the present application, optionally, the oil level in the oil receiver can also be detected. When it is found that the oil level in the oil receiver exceeds the normal value, that is, there may be a risk of overflow or backflow, the safety shut-off valve is promptly controlled to be closed to improve safety.

[0075] Reference Figure 6 , the embodiment of the present application provides a control device for a hot air oven system, comprising:

[0076] at least one processor 201;

[0077] At least one memory 202, used to store at least one program;

[0078] When the at least one program is executed by the at least one processor 201, the at least one processor 201 implements a method for controlling a hot air oven system.

[0079] Similarly, the contents of the above control method embodiments are all applicable to the present device embodiments. The functions specifically implemented by the present device embodiments are the same as those of the above control method embodiments, and the beneficial effects achieved are also the same as those achieved by the above control method embodiments.

[0080] The embodiment of the present application further provides a computer-readable storage medium, in which instructions executable by the processor 201 are stored. The instructions executable by the processor 201 are used to execute the above-mentioned control method of the hot air oven system when executed by the processor 201.

[0081] Similarly, the contents of the above control method embodiments are all applicable to the present storage medium embodiments. The functions specifically implemented by the present storage medium embodiments are the same as those of the above control method embodiments, and the beneficial effects achieved are also the same as those achieved by the above control method embodiments.

[0082] In some selectable embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the present invention is provided by way of example, for the purpose of providing a more comprehensive understanding of technology. The disclosed method is not limited to the operation and logic flow presented herein. Selectable embodiments are expected, wherein the order of various operations is changed and the sub-operation of a part for which is described as a larger operation is performed independently.

[0083] In addition, although the present invention is described in the context of functional modules, it should be understood that, unless otherwise specified, one or more of the functions and / or features can be integrated into a single physical device and / or software module, or one or more functions and / or features can be implemented in a separate physical device or software module. It is also understood that a detailed discussion of the actual implementation of each module is unnecessary for understanding the present invention. More specifically, in view of the properties, functions and internal relationships of the various functional modules in the device disclosed herein, the actual implementation of the module will be understood within the conventional skills of the engineer. Therefore, those skilled in the art can implement the present invention set forth in the claims without excessive experimentation using ordinary techniques. It is also understood that the specific concepts disclosed are merely illustrative and are not intended to limit the scope of the present invention, which is determined by the full scope of the appended claims and their equivalents.

[0084] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0085] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0086] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0087] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0088] In the above description of this specification, the description with reference to the terms "one embodiment / example", "another embodiment / example" or "certain embodiments / examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0089] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0090] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A safety stop valve, characterized in that: include: An elbow, the elbow comprising an air inlet and an air outlet, and a first through hole is provided at the bottom of the elbow; an oil receiver, the oil receiver being used to be connected to the elbow through the first through hole; A cylinder body, wherein a second through hole is provided on a side of the cylinder body, and the bent pipe is used to be connected to the cylinder body through the second through hole; A sealer, the sealer is arranged at the first end port of the cylinder body, and the sealer is provided with a third through hole; A cylinder, the cylinder comprising a piston rod, the piston rod extending into the cylinder body through the third through hole; A diaphragm, the diaphragm is connected to one end of the piston rod extending into the cylinder body, the diaphragm is in airtight contact with the inner wall of the cylinder body; the sealer and / or the diaphragm are made of heat-insulating material; A cylinder fixing seat, the cylinder fixing seat is used to vertically fix the cylinder on the sealer; A front air intake pipe is connected to the second end port of the cylinder body.

2. A hot air oven system, characterized in that: It comprises a hot air oven, a main air duct and a safety stop valve as claimed in claim 1; The hot air oven comprises a hot air exhaust duct, wherein the hot air exhaust duct is connected to the front air inlet pipe, and the air outlet is connected to the main air duct.

3. The hot air oven system according to claim 2, characterized in that: The system further comprises: An exhaust device is connected to the main air duct.

4. A control method for a hot air oven system, used to control the system as claimed in claim 2, characterized in that: The following steps are involved: Detecting the temperature in the hot air oven; It is determined that the temperature is higher than a preset temperature threshold, and the cylinder is controlled to move so that the diaphragm moves in the cylinder body to a position lower than the second through hole.

5. The method according to claim 4, characterized in that The method further comprises the following steps: Detecting the oil level of the oil receiver; It is determined that the oil level is higher than a preset height threshold, and the cylinder is controlled to move so that the diaphragm moves in the cylinder body to a position lower than the second through hole.

6. A control device for a hot air oven system, characterized in that: include: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the control method of the hot air oven system according to any one of claims 4 to 5.

7. A computer-readable storage medium storing instructions executable by a processor, characterized in that: The processor-executable instructions are used to implement the control method of the hot air oven system according to any one of claims 4 to 5 when executed by the processor.

Citation Information

Patent Citations

  • Gravure press, drying system and control method thereof

    CN108437623A

  • Collection device of organic volatile substance

    CN206660866U

  • Hot air oven system

    CN212339907U