A pressure relief ventilation system and control method

Abstract

The present invention proposes a pressure relief ventilation system and control method, which relate to the field of ventilation technology. It includes a main control device, a pressure relief valve, and a ventilation fan. The pressure relief valve includes a valve, a valve body, and a pressure relief cabin. The control end of the valve is connected to the main control device, and the main control device includes an offline control device and an online control device. Compared with the previous pressure relief ventilation system, it not only saves space, but also, when performing pressure relief ventilation, since the exhaust port of the ventilation pipe is connected to the pressure relief cabin, the gas in the corresponding cabin can be discharged under the pressure of the pressure relief valve, thereby improving the ventilation efficiency. At the same time, since the pressure of the pressure relief cabin is greater than the external pressure of the pressure relief port, the pressure relief port can effectively prevent debris from entering the ventilation pipe during ventilation, thereby improving the cleanliness and safety of the ventilation fan. In addition to automatic control, the system in this solution can also perform online manual control and offline manual control, thereby further improving practicality.

Description

Technical Field

[0001] This invention relates to the field of ventilation technology, and more specifically, to a pressure relief ventilation system and control method. Background Art

[0002] With the development and progress of industrial technology, the demand for ventilation and pressure relief applications is increasing. Whether it is for ventilation and pressure relief in production processes, such as for heat tracing pipelines and high-pressure boilers, or for ventilation and pressure relief in daily life, such as for houses and cars, it is all for venting and depressurizing closed or semi-closed compartments.

[0003] Existing depressurization and ventilation technologies generally employ two separate systems: a depressurization system and a ventilation system. The depressurization system releases pressure, while the ventilation system provides the necessary air exchange. However, this dual-system approach requires a significant amount of space, reducing the usable area of ​​the corresponding compartments. Furthermore, the separate ventilation system is susceptible to debris entering the ventilation vents, compromising its safety and cleanliness.

[0004] In view of the above-mentioned technologies, finding a pressure relief and ventilation control method that is more space-saving, safer, and cleaner is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a pressure relief and ventilation system and control method, which can solve the problem that current automatic partition door technology can only perform simple opening and closing control and cannot achieve more complex control such as upper and lower sealing and left and right sealing, thus resulting in low safety and practicality.

[0006] This invention is implemented as follows:

[0007] In a first aspect, embodiments of this application provide a pressure relief and ventilation system, including: a main control device, a pressure relief valve, and a ventilation fan;

[0008] The pressure relief valve includes a valve, a valve body, and a pressure relief chamber. The control end of the valve is connected to the main control device and is used to open the valve to relieve pressure after receiving an instruction from the main control device. The valve body is connected to the pressure relief chamber for relieving pressure after the valve is opened.

[0009] The ventilation fan includes a fan and a ventilation duct. The exhaust port of the ventilation duct is located on the side of the pressure relief port of the depressurization chamber. The fan is located at the exhaust port of the ventilation duct. The control terminal of the fan is connected to the main control device.

[0010] The main control device includes an online control device and an offline control device. The online control device and the offline control device are connected via remote communication. The online control device is used to send signals to the offline control device based on the user's control commands. The offline control device controls the pressure relief valve and the ventilation fan based on the control commands. The offline control device also includes control buttons. The offline control device is also used to control the pressure relief valve and the ventilation fan to work based on the control buttons. The offline control device is also used to detect the pressure and gas state inside the cavity, and control the pressure relief valve and the ventilation fan to work based on the detected pressure and gas state.

[0011] Based on the first aspect, the pressure relief valve further includes a baffle and a control component;

[0012] The baffle is located at the pressure relief port of the pressure relief chamber. When the pressure relief valve releases pressure, the baffle is subjected to pressure and opens to the outside of the pressure relief chamber.

[0013] The control component is connected to the baffle and is used to control the opening and closing of the baffle when it receives a command from the main control device.

[0014] Based on the first aspect, the baffle is a louver.

[0015] Based on the first aspect, it also includes: a mesh screen, which is disposed on the contact surface between the fan and the depressurization chamber.

[0016] Based on the first aspect, it also includes: alarm devices;

[0017] The alarm device is connected to the main control device and is used to receive pressure changes in the cabin when the main control device opens the valve. If the pressure in the cabin does not change, an alarm is triggered.

[0018] Secondly, this application also provides a pressure relief and ventilation control method, applied to a pressure relief and ventilation system including a main control device, a pressure relief valve, and a ventilation fan. The pressure relief valve includes a valve, a valve body, and a pressure relief chamber. The ventilation fan includes a fan and a ventilation duct. The main control device includes online control equipment and offline control equipment. The method includes:

[0019] The control signal is acquired, and the ventilation fan and pressure relief valve are controlled according to the control signal. The control signal is a signal sent by the online control device or generated by the action command of the control button.

[0020] The chamber pressure and gas state are detected, and it is determined whether they meet the preset requirements.

[0021] If not, open the valve of the pressure relief valve and turn on the ventilation fan for ventilation;

[0022] After a preset time, the chamber pressure and gas state are checked again to determine whether the preset requirements are met.

[0023] If so, then close the valve of the pressure relief valve and turn off the ventilation fan;

[0024] If not, return to the step of detecting the chamber pressure and gas state again after a preset time and determining whether the preset requirements are met.

[0025] Thirdly, this application provides an electronic device including a memory for storing one or more programs; a processor; and, when the one or more programs are executed by the processor, implementing the method described in any of the second aspects above.

[0026] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any of the second aspects above.

[0027] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0028] This invention proposes a pressure relief and ventilation system, including a main control device, a pressure relief valve, and a ventilation fan. The pressure relief valve includes a valve, a valve body, and a pressure relief chamber. The control end of the valve is connected to the main control device and is used to open the valve to relieve pressure after receiving a command from the main control device. The valve body is connected to the pressure relief chamber for relieving pressure after the valve is opened. The ventilation fan includes a fan and a ventilation duct. The exhaust port of the ventilation duct is located on the side of the pressure relief port of the pressure relief chamber. The fan is located at the exhaust port of the ventilation duct. The control end of the fan is connected to the main control device, and the main control device includes offline control equipment and online control equipment. Compared to previous pressure relief ventilation systems, this solution integrates the corresponding pressure relief ventilation system by installing the ventilation fan on the side of the pressure relief chamber of the pressure relief valve. This not only saves space, but also improves ventilation efficiency because the exhaust port of the ventilation pipe is connected to the pressure relief chamber. Since the air in the corresponding chamber is discharged under the pressure of the pressure relief valve, the ventilation efficiency is improved. Furthermore, because the pressure in the pressure relief chamber is greater than the external pressure at the exhaust port, the exhaust port effectively prevents debris from entering the ventilation pipe during ventilation, thus improving the cleanliness and safety of the ventilation fan. In addition, this system can be remotely operated via online control equipment, and in case of problems with the online control equipment, it can also be used to operate the offline control equipment for emergency control, further enhancing its practicality.

[0029] The pressure relief and ventilation control method, corresponding electronic equipment, and readable storage medium proposed in the embodiments of the present invention correspond to the above-mentioned automatic partition door system, and therefore have the same beneficial effects. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural block diagram of an embodiment of a pressure relief and ventilation system according to the present invention.

[0032] Figure 2 This is a flowchart of an embodiment of a pressure relief and ventilation control method according to the present invention;

[0033] Figure 3 This is a structural block diagram of an electronic device provided in an embodiment of the present invention.

[0034] Icons: 1. Pressure relief valve; 2. Ventilation fan; 3. Main control unit; 4. Valve; 5. Valve body; 6. Pressure relief chamber; 7. Pressure relief port; 8. Fan; 9. Ventilation duct; 10. Baffle; 11. Control component; 101. Memory; 102. Processor; 103. Communication interface. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the various embodiments and features described below can be combined with each other.

[0038] Example

[0039] Figure 1 A structural diagram of a pressure relief and ventilation system provided in an embodiment of this application is shown below. Figure 1 As shown, the system includes: a pressure relief valve 1, an exhaust fan 2, and a main control device 3;

[0040] The pressure relief valve 1 includes a valve 4, a valve body 5, and a pressure relief chamber 6. The control end of the valve 4 is connected to the main control device and is used to open the valve 4 to relieve pressure after receiving the instruction from the main control device. The valve body 5 is connected to the pressure relief chamber 6 to relieve pressure after the valve 4 is opened.

[0041] The ventilation fan 2 includes a fan 8 and a ventilation duct 9. The exhaust port of the ventilation duct 9 is located on the side of the pressure relief port 7 of the depressurization chamber 6. The fan 8 is located at the exhaust port of the ventilation duct 9. The control terminal of the fan 8 is connected to the main control device 3.

[0042] The main control device 3 includes an online control device and an offline control device. The online control device and the offline control device are connected through remote communication. The online control device is used to send signals to the offline control device based on the user's control commands. The offline control device controls the pressure relief valve and the ventilation fan based on the control commands. The offline control device also includes control buttons. The offline control device is also used to control the pressure relief valve and the ventilation fan based on the control buttons. The offline control device is also used to detect the pressure and gas state inside the cavity, and control the pressure relief valve and the ventilation fan based on the detected pressure and gas state. It also controls the pressure relief valve 1 and the ventilation fan 2 based on the detected pressure and gas state.

[0043] The pressure relief valve 1 is generally designed to automatically open and close based on the system's working pressure. It is typically installed on equipment or pipelines in closed systems to protect system safety. In this embodiment, the specific type and model of the pressure relief valve 1 are not limited. It should be noted that the valve body 5 is the main structure of the pressure relief valve 1, used to open and close the main body of the pressure relief valve 1. The valve 4 is the control component 11 used to control the opening and closing of the valve body 5. The pressure relief chamber 6 is the location for pressure relief. In this embodiment, the specific structure and material of the above components are not specifically limited.

[0044] It should be noted that, regarding the ventilation fan 2, this embodiment does not limit the specific structure and corresponding materials of the fan 8 and the ventilation duct 9. It is understood that when depressurization and ventilation are required, because the pressure inside the depressurization chamber 6 is greater than the external pressure, such as... Figure 1As shown, the gas in the chamber enters the depressurization chamber 6 after passing through the ventilation pipe 9. Since the pressure inside the depressurization chamber 6 is greater than the pressure outside the depressurization port 7, the gas will be directly discharged to the outside with the pressure. In the depressurization state, since the internal pressure of the depressurization chamber is greater than the outside pressure, debris is not easy to enter the depressurization chamber, thus protecting the ventilation fan 2.

[0045] It should be noted that the method of pressure monitoring and gas monitoring is not limited in this embodiment. It is conceivable that detection can be performed by corresponding sensors. In addition to automatic control using the detection of the main control device 3, the system can also be controlled by manual operation by the user, using buttons or other devices to control the pressure relief and gas exhaust.

[0046] It should be noted that the main control device 3 proposed in this embodiment includes online control equipment and offline control equipment. That is, the pressure relief and ventilation system proposed in this embodiment can be remotely controlled through online communication or on-site controlled through offline control buttons. It can be understood that, unlike the automatic control mode that collects gas state and pressure under automatic control, the above-mentioned online and offline modes adopt manual control methods. Both methods can realize the control of the pressure relief and ventilation system.

[0047] This embodiment proposes a pressure relief and ventilation system, including a main control device 3, a pressure relief valve 1, and a ventilation fan 2. The pressure relief valve 1 includes a valve 4, a valve body 5, and a pressure relief chamber 6. The control terminal of the valve 4 is connected to the main control device and is used to open the valve 4 to relieve pressure after receiving a command from the main control device. The valve body 5 is connected to the pressure relief chamber 6 to relieve pressure after the valve 4 is opened. The ventilation fan 2 includes a fan 8 and a ventilation duct 9. The exhaust port of the ventilation duct 9 is located on the side of the pressure relief port 7 of the pressure relief chamber 6. The fan 8 is located at the exhaust port of the ventilation duct 9, and the control terminal of the fan 8 is connected to the main control device 3. Compared to previous pressure relief and ventilation systems, this solution integrates the corresponding pressure relief and ventilation system. By installing the ventilation fan 2 on the side of the pressure relief chamber 6 of the pressure relief valve 1, not only is space saved, but during pressure relief and ventilation, since the exhaust port of the ventilation pipe 9 is connected to the pressure relief chamber 6, the gas in the corresponding chamber can be discharged under the pressure of the pressure relief valve 1, thereby improving ventilation efficiency. At the same time, because the pressure in the pressure relief chamber 6 is greater than the external pressure at the pressure outlet 7, the pressure outlet 7 can effectively prevent debris from entering the ventilation pipe 9 during ventilation, thereby improving the cleanliness and safety of the ventilation fan 2. Furthermore, the main control device 3 in this solution can be controlled by online or offline control equipment. Not only can it be remotely operated via online control equipment, but it can also be used to perform corresponding emergency control when the online control equipment malfunctions, thereby further improving practicality.

[0048] To prevent the cleanliness of the corresponding depressurization chamber and the interior of the ventilation fan 2 in a non-depressurized state, in some embodiments of this application, the pressure relief valve 1, by way of example, also includes a baffle 10 and a control component 11.

[0049] The baffle 10 is provided at the pressure relief port 7 of the pressure relief chamber 6. When the pressure relief valve 1 releases pressure, the baffle 10 is subjected to pressure and opens to the outside of the pressure relief chamber 6.

[0050] The control component 11 is connected to the baffle 10 and is used to control the opening and closing of the baffle 10 when it receives a command from the main control device 3.

[0051] It should be noted that in this embodiment, the specific structure and corresponding material of the baffle 10 are not limited, and the type and installation position of the control component 11 are not limited. It can be understood that the control component 11 can be a robotic arm with a command receiver, etc., so as to control the opening and closing of the baffle 10 according to the command of the main control device 3. It should also be noted that the mass of the baffle 10 should not be too high, so that the pressure during depressurization cannot open the baffle 10.

[0052] In this embodiment, a baffle 10 is provided to prevent debris from entering the depressurization chamber 6 in the non-depressurization state, thus improving cleanliness. Furthermore, in the non-depressurization state, if venting is required, the baffle 10 can be directly opened using the control component 11, thereby achieving single-stage venting. Since the baffle 10 can be directly opened by the pressure of the depressurization chamber, no additional control of the baffle 10 is needed in the depressurization venting state, thus saving control resources. It is also understood that in the non-controlled, non-depressurization state, the baffle 10 is generally in a normally closed state.

[0053] The specific structure of the baffle 10 is not limited in the above embodiments. For example, in some embodiments of this application, the baffle 10 is a louver.

[0054] It should be noted that in this embodiment, the louvers can be made of materials such as wood, glass, and aluminum alloy. Since louvers are easy to control and easy to open under pressure, they are highly practical as baffles 10.

[0055] Considering the cleanliness of the fan 8, by way of example, in some embodiments of this application, a mesh screen is also included, which is disposed on the contact surface between the fan 8 and the depressurization chamber 6.

[0056] By installing a mesh screen at the contact surface between the fan 8 and the depressurization chamber 6, fine particles such as rainwater or other dust are prevented from entering the interior of the fan 8, thereby improving cleanliness.

[0057] Considering the safety of the corresponding compartment pressure, for example, in some embodiments of this application, an alarm device is also included;

[0058] The alarm device is connected to the main control device 3 and is used to receive pressure changes in the cabin when the main control device 3 opens the valve 4. If the pressure in the cabin does not change, an alarm is triggered.

[0059] It should be noted that in this embodiment, the specific type and location of the alarm device are not specifically limited. The alarm device can be a warning light, a buzzer, etc. At the same time, the alarm is triggered based on the corresponding pressure change. It can detect whether valve 4 is working properly. If the pressure does not change, it indicates that the pressure relief valve 1 is faulty. Therefore, an alarm is triggered to prompt the user to troubleshoot the fault in time and improve safety.

[0060] Based on the same inventive concept. Figure 2 This application also provides a flowchart of a pressure relief and ventilation control method, applied to a pressure relief and ventilation system including a main control device, a pressure relief valve, and a ventilation fan. The pressure relief valve includes a valve, a valve body, and a pressure relief chamber; the ventilation fan includes a fan and a ventilation duct; the main control device includes online control equipment and offline control equipment; and the method includes:

[0061] S1: Acquire control signals and control the ventilation fan and pressure relief valve according to the control signals;

[0062] It should be noted that the control signal is a signal sent by the online control device or generated by the action command of the control button. It can also be understood that there is no limitation on the order of the running time of S1 and the subsequent steps S10-S13. That is, step S1 can run before S10-S13 or run at any position after the corresponding steps.

[0063] S10: Detect the chamber pressure and gas state, and determine whether the preset requirements are met. If not, proceed to S11.

[0064] S11: Open the pressure relief valve and turn on the ventilation fan for ventilation;

[0065] S12: After a preset time, check the chamber pressure and gas status again and determine whether the preset requirements are met. If yes, proceed to S13; otherwise, return to S12.

[0066] S13: Close the pressure relief valve and turn off the ventilation fan.

[0067] For details on the specific implementation process and corresponding beneficial effects of the above method, please refer to the pressure relief and ventilation system provided in the embodiment of this application, which will not be repeated here.

[0068] Please see Figure 3 , Figure 3This is a structural block diagram of an electronic device provided in an embodiment of the present invention. The electronic device includes a memory 101, a processor 102, and a communication interface 103. The memory 101, processor 102, and communication interface 103 are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines. The memory 101 can be used to store software programs and modules, such as the program instructions / modules corresponding to a pressure relief and ventilation system provided in this application embodiment. The processor 102 executes various functional applications and data processing by executing the software programs and modules stored in the memory 101. The communication interface 103 can be used for signaling or data communication with other node devices.

[0069] The memory 101 may be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc.

[0070] The processor 102 can be an integrated circuit chip with signal processing capabilities. The processor 102 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0071] I understand. Figure 3 The structure shown is for illustrative purposes only; the electronic device may also include components that are more advanced than those shown. Figure 3 The more or fewer components shown, or having the same Figure 3 The different configurations shown. Figure 3 The components shown can be implemented using hardware, software, or a combination thereof.

[0072] In summary, the pressure relief and ventilation system and control method provided in this application further improve the safety and practicality of automatic partition doors.

[0073] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.

[0074] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0075] In summary, the present application provides an electronic device and a computer-readable storage medium. Specific embodiments and corresponding beneficial effects are described in the above-mentioned method section and will not be repeated here.

[0076] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure relief and ventilation system, characterized in that, include: Main control unit, pressure relief valve, ventilation fan; The pressure relief valve includes a valve, a valve body, and a pressure relief chamber. The control end of the valve is connected to the main control device and is used to open the valve to relieve pressure after receiving an instruction from the main control device. The valve body is connected to the pressure relief chamber for relieving pressure after the valve is opened. The ventilation fan includes a fan and a ventilation duct. The exhaust port of the ventilation duct is located on the side of the pressure relief port of the depressurization chamber. The fan is located at the exhaust port of the ventilation duct. The control terminal of the fan is connected to the main control device. The main control device includes an online control device and an offline control device. The online control device and the offline control device are connected via remote communication. The online control device is used to send signals to the offline control device based on the user's control commands. The offline control device controls the pressure relief valve and the ventilation fan based on the control commands. The offline control device also includes control buttons. The offline control device is also used to control the pressure relief valve and the ventilation fan to work based on the control buttons. The offline control device is also used to detect the pressure and gas state inside the cavity, and control the pressure relief valve and the ventilation fan to work based on the detected pressure and gas state.

2. The pressure relief and ventilation system as described in claim 1, characterized in that, The pressure relief valve also includes a baffle and control components; The baffle is located at the pressure relief port of the pressure relief chamber. When the pressure relief valve releases pressure, the baffle is subjected to pressure and opens to the outside of the pressure relief chamber. The control component is connected to the baffle and is used to control the opening and closing of the baffle when it receives a command from the main control device.

3. The pressure relief and ventilation system as described in claim 2, characterized in that, The baffle is a louver.

4. The pressure relief and ventilation system as described in claim 3, characterized in that, Also includes: A mesh screen is disposed on the contact surface between the fan and the depressurization chamber.

5. A pressure relief and ventilation system as described in any one of claims 1 to 4, characterized in that, Also includes: Alarm device; The alarm device is connected to the main control device and is used to receive pressure changes in the cabin when the main control device opens the valve. If the pressure in the cabin does not change, an alarm is triggered.

6. A method for controlling pressure relief and ventilation, characterized in that, The method, applied to the pressure relief and ventilation system according to any one of claims 1-5, comprises: Acquire control signals and control the ventilation fan and pressure relief valve according to the control signals. The control signals are signals sent by the online control device or generated by the action command of the control button. Detect the chamber pressure and gas state, and determine whether they meet the preset requirements; If not, open the valve of the pressure relief valve and turn on the ventilation fan for ventilation; After a preset time, the chamber pressure and gas status are checked again to determine whether the preset requirements are met. If so, then close the valve of the pressure relief valve and turn off the ventilation fan; If not, return to the step of checking the chamber pressure and gas state again after a preset time and determining whether the preset requirements are met.

7. An electronic device, characterized in that, include: a memory for storing one or more programs; processor; When the one or more programs are executed by the processor, the method of claim 6 is implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the method as described in claim 6.

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