A high-pressure single-group pressure controller with high safety and explosion prevention

Abstract

The utility model discloses a high safety's anti -explosion high pressure single group pressure controller relates to high pressure single group pressure controller technical field, the utility model discloses a lower explosion -proof cover is fixedly connected with the protection cover subassembly on one side of explosion -proof, the inner chamber fixedly connected with controller subassembly of protection cover subassembly, the protection cover subassembly includes the protective shell, and one side of protective shell is fixedly connected with explosion -proof lower cover. The utility model discloses a lower explosion -proof cover, protection cover subassembly and explosion -proof upper cover are set up, form multilayer anti -explosion structure, and the flange plate in protection cover subassembly is connected through the hexagon socket head cap screw with explosion -proof upper cover, and sets up the sealing washer, ensures the sealing property of junction, prevents the combustible explosive material from entering inside effectively, simultaneously, the reinforcing disc and the reinforcing rib on the surface of explosion -proof upper cover and the reinforcing strip on the surface of protective shell, have strengthened the overall structural strength, have improved the anti -explosion performance, can be stable operation in dangerous environment, reduces the explosion risk.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-pressure single-unit pressure controllers, and in particular relates to a high-safety explosion-proof high-pressure single-unit pressure controller. Background Technology

[0002] The explosion-proof high-pressure single-unit pressure controller is an explosion-proof pressure protection device specifically developed for pressure systems in industries such as refrigeration, petrochemicals, and textiles. This device contains electrical contacts that can be connected and disconnected. It can withstand the explosion of flammable gas or vapor inside without being damaged, and it will not propagate the internal explosion to external flammable gas or vapor. It can effectively prevent the electrical switch contacts of the pressure controller from generating an electric arc that could ignite flammable gas in the external environment. It is an explosion-proof pressure controller.

[0003] Traditional high-pressure single-unit pressure controllers have insufficient explosion-proof housing sealing, which can easily allow flammable and explosive substances to enter the controller, causing an explosion hazard. Their internal connection structure has poor stability, and under complex working conditions such as high pressure and vibration, components are prone to loosening and falling off. This not only affects the normal operation of the controller, but may also generate sparks due to component friction, further aggravating safety hazards. In addition, the protective structure of traditional controllers is difficult to effectively resist external impacts. Once subjected to an impact, internal components may be damaged, which may cause leakage, short circuits and other faults, seriously threatening production safety and the safety of personnel and property.

[0004] To address these issues, we provide a highly safe explosion-proof high-pressure single-unit pressure controller. Utility Model Content

[0005] The purpose of this utility model is to provide a high-safety explosion-proof high-pressure single-unit pressure controller. By cooperating with the protective cover assembly and the controller assembly, it solves the problem that the explosion-proof shell of the existing high-pressure single-unit pressure controller has insufficient sealing and the protective structure is difficult to effectively resist external impacts.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a high-safety explosion-proof high-pressure single-unit pressure controller, comprising an explosion-proof lower cover, a protective cover assembly fixedly connected to one side of the explosion-proof lower cover, a controller assembly fixedly connected to the inner cavity of the protective cover assembly, and a protective cover assembly including a protective shell, one side of the protective shell being fixedly connected to the explosion-proof lower cover, a connecting seat fixedly connected to the bottom of the inner cavity of the protective shell, a flange fixedly connected to one side of the protective shell, a sealing ring provided on one side of the flange, an explosion-proof upper cover provided on one side of the sealing ring, a reinforcing plate fixedly connected to the surface of the explosion-proof upper cover, and reinforcing ribs fixedly connected to the surface of the reinforcing plate. The explosion-proof lower cover serves as a basic support and bottom layer protection in the overall structure, effectively preventing loosening of the connection under complex working conditions such as high pressure and vibration. One side of the protective shell is welded and fixed to the explosion-proof lower cover. The connecting seat is used to install the controller assembly to prevent displacement during operation. A sealing ring is provided on one side of the flange. Made of high-temperature, high-pressure resistant, and highly elastic silicone rubber, it maintains excellent sealing performance under different temperature and pressure environments. The explosion-proof cover and protective shell form a tight protective space. The reinforcing plate is fixed to the explosion-proof cover with multiple evenly distributed rivets, enhancing the structural strength of the explosion-proof cover. The reinforcing ribs are distributed in a cross pattern, further improving the explosion-proof cover's ability to resist external impacts, while dispersing internal pressure and preventing deformation of the explosion-proof cover. The design of the protective shell, explosion-proof cover, reinforcing ribs, and reinforcing plate greatly improves the overall structural strength and impact resistance of the pressure controller, effectively resisting external impacts and compression, protecting the internal controller components from damage. At the same time, the protective shell and explosion-proof cover are tightly connected by flanges and sealing rings, forming a highly sealed explosion-proof space, which can effectively prevent flammable and explosive gases or dust from entering the interior, reducing the risk of explosion and meeting the explosion-proof requirements of high-risk operating environments such as petrochemical and natural gas transportation.

[0008] This utility model is further configured such that the controller assembly includes a high-pressure single-unit pressure controller, which is disposed above the connector. An inner adapter is threaded to one side of the bottom of the high-pressure single-unit pressure controller. A sealing gasket is fitted onto the surface of the inner adapter, and an outer adapter is threaded to the bottom of the inner adapter. The bottom of the high-pressure single-unit pressure controller is threaded to the inner adapter, the inner adapter is fitted with a sealing gasket, and the bottom is threaded to the outer adapter. This threaded connection provides reliable mechanical connection strength, ensuring that the components will not easily separate under high pressure. The sealing gasket effectively fills the gaps at the connection, enhancing sealing performance, preventing media leakage, ensuring accurate pressure control, and avoiding safety hazards caused by media leakage. It is suitable for high-pressure operation scenarios with extremely high sealing requirements.

[0009] The present invention is further provided that mounting holes are provided on both sides of the top of the connecting seat, and the mounting holes are symmetrically arranged. The mounting holes securely install the high-pressure single-group pressure controller on the connecting seat. The symmetrical arrangement of the mounting holes enables the high-pressure single-group pressure controller to be subjected to uniform force, thereby improving the reliability and stability of the pressure controller operation.

[0010] The present invention is further configured such that a positioning hole is provided on one side of the bottom of the high-pressure single-unit pressure controller, and an explosion-proof connector is threadedly connected to the inner cavity of the positioning hole. The positioning hole is connected to the explosion-proof connector through the thread, and the cooperation between the positioning hole and the explosion-proof connector realizes the precise positioning and installation of the high-pressure single-unit pressure controller, ensuring that its installation position is accurate and correct, which is conducive to the accurate transmission and control of pressure signals.

[0011] The present invention is further provided that an installation plate is fixedly connected to the inner wall of the explosion-proof lower cover, and the surface of the installation plate is provided with a connection hole. The design of the connection hole facilitates the connection and fixing of the high-pressure single-group pressure controller, enabling the pressure controller to be quickly and conveniently installed in the designated position, reducing the installation difficulty and time cost.

[0012] The present invention is further configured such that a reinforcing strip is fixedly connected to the surface of the protective shell, and one side of the reinforcing strip is fixedly connected to the explosion-proof lower cover. The setting of the reinforcing strip effectively enhances the structural strength of the protective shell, enabling it to better disperse stress when subjected to external impact or compression, preventing the protective shell from deforming or cracking, thereby providing more reliable protection for the internal controller components.

[0013] The present invention is further configured such that a first threaded hole is provided on the surface of the flange, and a second threaded hole is provided on the surface of the explosion-proof cover to cooperate with the first threaded hole. An internal hexagon screw is provided between the first threaded hole and the second threaded hole. The first threaded hole and the second threaded hole are connected by the internal hexagon screw, which has the characteristics of easy disassembly and assembly, making it convenient for staff to inspect, maintain and replace parts inside the pressure controller, thus improving the maintainability of the equipment.

[0014] The present invention is further configured such that a limiting boss is fixedly connected to the surface of the flange, the limiting boss being adapted to the sealing ring. The limiting boss on the surface of the flange being adapted to the sealing ring can accurately position and fix the sealing ring, preventing the sealing ring from shifting or deforming during installation and use, and further ensuring sealing performance and explosion-proof effect.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model forms a multi-layer explosion-proof structure by setting an explosion-proof lower cover, a protective cover assembly, and an explosion-proof upper cover. The flange in the protective cover assembly is connected to the explosion-proof upper cover by hexagonal screws and a sealing ring is provided to ensure the sealing of the connection, effectively preventing flammable and explosive substances from entering the interior. At the same time, the reinforcing plate and reinforcing ribs on the surface of the explosion-proof upper cover, as well as the reinforcing strips on the surface of the protective shell, enhance the overall structural strength, improve the explosion-proof performance, enable stable operation in hazardous environments, and reduce the risk of explosion.

[0017] 2. This utility model achieves a stable connection between components through the combination of an inner adapter, a sealing gasket, and an outer adapter. The sealing gasket ensures the sealing of the connection and prevents media leakage. The mounting hole on the top of the connector facilitates the installation and fixing of the high-pressure single-unit pressure controller, ensuring that it will not loosen during operation, thereby improving the stability and reliability of the equipment operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional diagram of a high-safety explosion-proof high-pressure single-unit pressure controller.

[0020] Figure 2 This is a perspective view of the explosion-proof lower cover and its connection structure in a high-safety explosion-proof high-pressure single-unit pressure controller.

[0021] Figure 3 This is a three-dimensional view of a high-pressure single-unit pressure controller, which is a type of explosion-proof high-pressure single-unit pressure controller with high safety.

[0022] Figure 4 This is a bottom-view perspective view of a high-pressure single-unit pressure controller, which is a type of explosion-proof high-pressure single-unit pressure controller with high safety.

[0023] Figure 5 This is a perspective view of the explosion-proof top cover in a high-safety explosion-proof high-pressure single-unit pressure controller.

[0024] In the attached diagram: 1. Explosion-proof lower cover; 2. Protective cover assembly; 21. Protective shell; 22. Connecting seat; 23. Flange; 24. Sealing ring; 25. Explosion-proof upper cover; 26. Reinforcing plate; 27. Reinforcing rib; 3. Controller assembly; 31. High-pressure single-unit pressure controller; 32. Internal adapter; 33. Sealing gasket; 34. External adapter; 4. Mounting hole; 5. Positioning hole; 6. Explosion-proof connector; 7. Mounting plate; 8. Connecting hole; 9. Reinforcing strip; 10. First threaded hole; 11. Second threaded hole; 12. Hex socket head cap screw; 13. Limiting boss. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model is a high-safety explosion-proof high-pressure single-unit pressure controller, including an explosion-proof lower cover 1, a protective cover assembly 2 fixedly connected to one side of the explosion-proof lower cover 1, a controller assembly 3 fixedly connected to the inner cavity of the protective cover assembly 2, the protective cover assembly 2 including a protective shell 21, one side of the protective shell 21 fixedly connected to the explosion-proof lower cover 1, a connecting seat 22 fixedly connected to the bottom of the inner cavity of the protective shell 21, a flange 23 fixedly connected to one side of the protective shell 21, a sealing ring 24 provided on one side of the flange 23, an explosion-proof upper cover 25 provided on one side of the sealing ring 24, a reinforcing plate 26 fixedly connected to the surface of the explosion-proof upper cover 25, and reinforcing ribs 27 fixedly connected to the surface of the reinforcing plate 26.

[0028] Specifically: The explosion-proof lower cover 1 serves as the basic support and bottom layer protection in the overall structure, effectively preventing loosening of connections under complex working conditions such as high pressure and vibration. One side of the protective shell 21 is welded and fixed to the explosion-proof lower cover 1. The connecting seat 22 is used to install the controller assembly 3 to prevent displacement during operation. A sealing ring 24 is provided on one side of the flange 23. The sealing ring 24 is made of high-temperature and high-pressure resistant silicone rubber with good elasticity, which can maintain good sealing performance under different temperature and pressure environments. The explosion-proof upper cover 25 and the protective shell 21 form a tight protective space. The reinforcing plate 26 is fixed to the explosion-proof upper cover 25 by multiple evenly distributed rivets, enhancing the structural strength of the explosion-proof upper cover 25. The reinforcing ribs 27 are distributed in a crisscross pattern, further enhancing the explosion-proof cover 25's ability to resist external impacts. At the same time, they disperse internal pressure and prevent the explosion-proof cover 25 from deforming. The design of the protective shell 21, the explosion-proof cover 25, the reinforcing ribs 27, and the reinforcing plate 26 greatly improves the overall structural strength and impact resistance of the pressure controller. It can effectively resist external impacts, compression, and other situations, protecting the internal controller components 3 from damage. Meanwhile, the protective shell 21 and the explosion-proof cover 25 are tightly connected by the flange 23 and the sealing ring 24, forming a highly sealed explosion-proof space. This can effectively prevent flammable and explosive gases or dust from entering the interior, reducing the risk of explosion and meeting the explosion-proof requirements of high-risk operating environments such as petrochemical and natural gas transportation.

[0029] Example 2

[0030] Please see Figure 1-5Based on Embodiment 1, the controller assembly 3 includes a high-pressure single-unit pressure controller 31, which is positioned above the connecting base 22. An inner adapter 32 is threadedly connected to one side of the bottom of the high-pressure single-unit pressure controller 31. A sealing gasket 33 is fitted onto the surface of the inner adapter 32, and an outer adapter 34 is threadedly connected to the bottom of the inner adapter 32. Mounting holes 4 are symmetrically arranged on both sides of the top of the connecting base 22. A positioning hole 5 is provided on one side of the bottom of the high-pressure single-unit pressure controller 31, and a sealing gasket 33 is threadedly connected to the inner cavity of the positioning hole 5. An explosion-proof connector 6 and an explosion-proof lower cover 1 are fixedly connected to an installation plate 7. The surface of the installation plate 7 is provided with a connection hole 8. The surface of the protective shell 21 is fixedly connected with a reinforcing strip 9. One side of the reinforcing strip 9 is fixedly connected to the explosion-proof lower cover 1. The surface of the flange 23 is provided with a first threaded hole 10. The surface of the explosion-proof upper cover 25 is provided with a second threaded hole 11 that mates with the first threaded hole 10. An internal hexagon screw 12 is provided between the first threaded hole 10 and the second threaded hole 11. A limiting boss 13 is fixedly connected to the surface of the flange 23. The limiting boss 13 is adapted to the sealing ring 24.

[0031] Specifically: The bottom of the high-pressure single-unit pressure controller 31 is connected to an inner adapter 32 via a thread, and a sealing gasket 33 is fitted on the surface of the inner adapter 32. The bottom is then connected to an outer adapter 34 via another thread. This threaded connection provides reliable mechanical strength, ensuring that components will not easily separate under high pressure. The sealing gasket 33 effectively fills the gaps at the connection, enhancing sealing performance, preventing media leakage, ensuring accurate pressure control, and avoiding safety hazards caused by media leakage. This method is suitable for high-pressure operating scenarios with extremely high sealing requirements. The mounting holes 4 securely mount the high-pressure single-unit pressure controller 31 onto the connecting seat 22. The symmetrically arranged mounting holes 4 ensure even force distribution on the high-pressure single-unit pressure controller 31, improving the reliability and stability of the pressure controller's operation. The positioning holes 5 are connected to an explosion-proof connector 6 via a thread. The cooperation between the positioning holes 5 and the explosion-proof connector 6 achieves precise positioning and installation of the high-pressure single-unit pressure controller 31, ensuring accurate installation. For accurate transmission and control of pressure signals, the design of the connection hole 8 facilitates the connection and fixation of the high-pressure single-group pressure controller 31, enabling the pressure controller to be installed quickly and conveniently in the designated position, reducing installation difficulty and time costs. The setting of the reinforcing strip 9 effectively enhances the structural strength of the protective shell 21, allowing it to better disperse stress when subjected to external impacts and compression, preventing the protective shell 21 from deforming or cracking, thereby providing more reliable protection for the internal controller assembly 3. The first threaded hole 10 and the second threaded hole 11 are connected by the internal hexagon screw 12, which has the characteristics of easy disassembly and assembly, making it convenient for staff to inspect, maintain and replace parts inside the pressure controller, improving the maintainability of the equipment. The limiting boss 13 on the surface of the flange 23 is compatible with the sealing ring 24, which can accurately position and fix the sealing ring 24, preventing the sealing ring 24 from shifting or deforming during installation and use, further ensuring sealing performance and explosion-proof effect.

[0032] The working principle of this utility model is as follows: the protective cover assembly 2 is welded and fixed to the explosion-proof lower cover 1 to form a highly enclosed protective space. The protective shell 21, the explosion-proof upper cover 25, and the sealing structure between them together constitute an explosion-proof barrier. The explosion-proof upper cover 25 is connected to the protective shell 21 through the flange 23. The sealing ring 24 is made of high-temperature, high-pressure resistant and highly elastic silicone rubber. After the flange 23 and the explosion-proof upper cover 25 are tightened with the internal hexagon screws 12, the sealing ring 24 tightly fills the gaps to prevent flammable and explosive substances from entering the interior. The reinforcing plate 26 and the reinforcing rib 27 enhance the structural strength of the explosion-proof upper cover 25 so that it can withstand external impacts and internal pressure, ensuring the integrity of the protective space.

[0033] When external pressure is transmitted to the high-pressure single-unit pressure controller 31, its internal pressure sensing element converts the pressure signal into an electrical signal. The bottom of the high-pressure single-unit pressure controller 31 is connected to the external pipeline through an internal adapter 32, a sealing gasket 33, and an external adapter 34. The threaded connection ensures the connection strength, and the sealing gasket 33 ensures the sealing of the connection part to prevent media leakage from affecting the accuracy of pressure monitoring. The symmetrical mounting holes 4 on the top of the connecting seat 22, together with bolts, securely install the high-pressure single-unit pressure controller 31, so that it can remain stable under the vibration caused by pressure changes. The positioning hole 5 at the bottom of the high-pressure single-unit pressure controller 31, together with the explosion-proof connector 6, achieves precise positioning and installation, ensuring that the pressure signal is accurately transmitted to the internal processing unit of the controller. The processing unit analyzes and processes the signal according to the preset pressure threshold. When the pressure exceeds or falls below the set value, a control signal is sent through the output port to realize the pressure control of the external equipment.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A high-safety explosion-proof high-pressure single-unit pressure controller, comprising an explosion-proof lower cover (1), characterized in that: A protective cover assembly (2) is fixedly connected to one side of the explosion-proof lower cover (1), and a controller assembly (3) is fixedly connected to the inner cavity of the protective cover assembly (2). The protective cover assembly (2) includes a protective shell (21), one side of which is fixedly connected to the explosion-proof lower cover (1). A connecting seat (22) is fixedly connected to the bottom of the inner cavity of the protective shell (21). A flange (23) is fixedly connected to one side of the protective shell (21). A sealing ring (24) is provided on one side of the flange (23). An explosion-proof upper cover (25) is provided on one side of the sealing ring (24). A reinforcing plate (26) is fixedly connected to the surface of the explosion-proof upper cover (25). A reinforcing rib (27) is fixedly connected to the surface of the reinforcing plate (26).

2. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 1, characterized in that: The controller assembly (3) includes a high-pressure single-group pressure controller (31), which is located above the connector (22). An inner adapter (32) is threadedly connected to one side of the bottom of the high-pressure single-group pressure controller (31). A sealing gasket (33) is fitted on the surface of the inner adapter (32), and an outer adapter (34) is threadedly connected to the bottom of the inner adapter (32).

3. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 1, characterized in that: The top of the connector (22) is provided with mounting holes (4) on both sides, and the mounting holes (4) are symmetrically arranged.

4. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 2, characterized in that: The high-pressure single-group pressure controller (31) has a positioning hole (5) on one side of its bottom, and the inner cavity of the positioning hole (5) is threaded with an explosion-proof connector (6).

5. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 1, characterized in that: The inner wall of the explosion-proof lower cover (1) is fixedly connected to an installation plate (7), and the surface of the installation plate (7) is provided with a connection hole (8).

6. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 1, characterized in that: The protective shell (21) has a reinforcing strip (9) fixedly connected to its surface, and one side of the reinforcing strip (9) is fixedly connected to the explosion-proof lower cover (1).

7. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 1, characterized in that: The flange (23) has a first threaded hole (10) on its surface, and the explosion-proof cover (25) has a second threaded hole (11) that works with the first threaded hole (10) on its surface. An internal hexagon screw (12) is provided between the first threaded hole (10) and the second threaded hole (11).

8. The explosion-proof high-pressure single-unit pressure controller with high safety according to claim 1, characterized in that: The flange (23) has a fixed connection to a limiting boss (13), which is adapted to the sealing ring (24).

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