Electric high-temperature pressure adjusting device with eccentric cock structure

Abstract

The utility model provides an electric high-temperature pressure adjusting device with an eccentric cock structure, and relates to the technical field of engine testing. The regulating valve comprises a regulating valve body, a control rotating rod is rotatably connected in the regulating valve body, water cooling channels are installed on the inner wall of the regulating valve body and in the control rotating rod, and a sealing mechanism used for sealing is arranged outside the control rotating rod. Through the arrangement of the control rotating rod, the water cooling channel, the eccentric cock, the valve seat and the like, the eccentric cock can be driven by the control rotating rod to be wedged into the valve seat in the rotating process through the matching relation between the eccentric cock and the valve seat, and the eccentric cock is wedged more tightly along with the rotation of the control rotating rod, so that the sealing performance of the valve is improved, and the service life of the valve is prolonged. Meanwhile, friction generated when the eccentric cock makes contact with the inner wall of the valve body in the adjusting process can be reduced, the probability that the eccentric cock is damaged due to friction is reduced, the sealing effect of the eccentric cock is guaranteed, and the service life of the eccentric cock is prolonged.

Description

Technical Field

[0001] This utility model relates to a pressure regulating device, specifically an electric high-temperature pressure regulating device with an eccentric rotary valve structure, belonging to the field of engine testing technology. Background Technology

[0002] Ground testing of aircraft engines is a critical testing phase in engine design and manufacturing performance. In aircraft engine testing equipment systems, the pressure regulation device is one of the key factors ensuring the efficient and safe operation of the testing equipment. Market research indicates that a certain type of aircraft testing equipment system requires this efficient and safe electrically operated high-temperature pressure regulation device.

[0003] According to patent number CN212775788U, an ultra-high temperature self-operated pressure regulating valve is disclosed, including a valve body and auxiliary components; the valve body: the side of the valve body is provided with an outlet flange, the outlet flange is connected to the rear valve pipe flange of the rear valve pipe by connecting bolts, and the valve body is symmetrically provided with connecting rods; the auxiliary components: the auxiliary components include a fixing block, a fixing rod, a mounting block, an arc plate and fixing bolts.

[0004] The above solution can fix the arc plate to the connected valve pipe with fixing bolts during implementation, share the external force on the regulating valve and increase stability. However, the above solution is difficult to reduce the wear on the sealing surface during implementation. The sealing surface often comes into contact with the valve body and rubs during adjustment. Long-term damage will reduce the sealing performance of the device. To solve the above problems, we provide an electric high temperature pressure regulating device with an eccentric plug structure. Utility Model Content

[0005] The purpose of this invention is to provide an electric high-temperature pressure regulating device with an eccentric cock structure to solve the above-mentioned problems, thereby addressing the issue of damage to the sealing surface due to contact friction during the adjustment process in the prior art.

[0006] This utility model is achieved through the following technical solution: an electric high-temperature pressure regulating device with an eccentric cock structure, comprising a regulating valve body, a control rod rotatably connected inside the regulating valve body, water cooling channels installed on the inner wall of the regulating valve body and inside the control rod, a sealing mechanism for sealing provided outside the control rod, the sealing mechanism including a transmission frame, the control rod passing through the transmission frame and fixedly connected to the transmission frame, an eccentric cock fixedly connected to the end of the transmission frame, a valve tube fixedly connected to the end of the regulating valve body, and a valve seat adapted to the eccentric cock provided on the inner wall of the valve tube.

[0007] Preferably, a sealing ring is fixedly connected to the outer surface of the eccentric plug, and the sealing ring is adapted to the valve seat. The sealing ring can improve the sealing performance between the eccentric plug and the valve seat.

[0008] Preferably, the top surface of the regulating valve body is fixedly connected to a mounting flange by bolts, and the top surface of the mounting flange is fixedly connected to a mounting ring, which facilitates the installation of a small servo motor.

[0009] Preferably, a fixing plate is fixedly connected to the top surface of the mounting ring, and a small servo motor is fixedly mounted on the outside of the fixing plate by bolts. The small servo motor can realize the electric opening and closing of the valve.

[0010] Preferably, the top surface of the mounting ring has a slot, and a protective cover is provided above the mounting ring. The protective cover is slidably connected to the slot, and the protective cover serves to protect the small servo motor.

[0011] Preferably, the outer surface of the regulating valve body is fixedly connected to an inlet and an outlet, and the two ends of the water cooling channel are fixedly connected to the inlet and the outlet, respectively, so that the water cooling channel can achieve the effect of cooling and reducing temperature.

[0012] Preferably, the inner wall of the regulating valve body and the surfaces of all devices exposed to the medium fluid are coated with a high-temperature thermal barrier coating, which can improve the high-temperature resistance of the internal structure of the valve body.

[0013] This utility model provides an electric high-temperature pressure regulating device with an eccentric cock structure, which has the following beneficial effects:

[0014] 1. This utility model, by setting up components such as a control lever, a water-cooling channel, an eccentric plug, and a valve seat, utilizes the cooperation between the eccentric plug and the valve seat to enable the control lever to drive the eccentric plug to wedge into the valve seat during rotation. As the control lever rotates, the wedging becomes tighter and tighter, thereby improving the valve's sealing performance. At the same time, it can also reduce the friction generated by the eccentric plug contacting the inner wall of the valve body during adjustment, reducing the probability of damage to the eccentric plug due to friction, ensuring the sealing effect of the eccentric plug, and extending the service life of the eccentric plug.

[0015] 2. This utility model, through the setting of a water-cooling channel, water inlet and water outlet, allows operators to input cooling water into the water-cooling channel when the internal temperature of the valve body is too high. This utilizes the flow of water to cool and lower the internal temperature of the regulating valve body, thereby ensuring the necessary strength of the material and improving the high-temperature resistance of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the regulating valve body of this utility model;

[0019] Figure 4 This is a schematic diagram of the sealing mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure and installation of the small servo motor of this utility model.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Regulating valve body; 2. Control lever; 3. Water cooling channel;

[0023] 4. Sealing mechanism; 401. Transmission frame; 402. Eccentric plug; 403. Valve pipe; 404. Valve seat; 405. Sealing ring;

[0024] 5. Mounting flange; 6. Mounting ring; 7. Fixing plate; 8. Small servo motor; 9. Protective cover; 10. Water inlet; 11. Water outlet. Detailed Implementation

[0025] This utility model provides an electric high-temperature pressure regulating device with an eccentric cock structure.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a regulating valve body 1. The inner wall of the regulating valve body 1 and all surfaces of devices exposed to the medium fluid are coated with a high-temperature thermal barrier coating. The coating material is designed to be tantalum niobate powder and designed to be laser sprayed. The spraying treatment method and the performance of the material at high temperatures are studied to achieve a spraying bonding strength greater than 30MPa and a temperature resistance of 1650℃. This ensures the performance of the material at high temperatures, avoids oxidation of metal materials at high temperatures, and the coating can provide thermal insulation to the base material, reduce the base temperature, enable the internal devices of the valve to operate at high temperatures, improve the high temperature resistance of the device, and extend the service life of the device in high-temperature environments.

[0027] Please see Figure 1 , Figure 2 and Figure 5The top surface of the regulating valve body 1 is fixedly connected to the mounting flange 5 by bolts. Both ends of the regulating valve body 1 are connected to flanges to facilitate the assembly of the device with the medium conveying pipeline. The upper end of the regulating valve body 1 has a flange mounting plate that matches the mounting flange 5, which facilitates the installation of the mounting flange 5. The mounting flange 5 can provide support for the subsequent installation of the small servo motor 8, which allows the device to control the rotation of the stopcock electrically, thereby adjusting the valve opening, reducing the workload of manual valve adjustment and improving the adjustment efficiency.

[0028] A mounting ring 6 is fixedly connected to the top surface of the mounting flange 5, and a fixing plate 7 is fixedly connected to the top surface of the mounting ring 6. A small servo motor 8 is fixedly mounted on the outside of the fixing plate 7 by bolts. A control rod 2 passes through the mounting ring 6 and is rotatably connected to the mounting ring 6. The top end of the control rod 2 is fixedly connected to the output shaft of the small servo motor 8. When the small servo motor 8 starts, it can drive the control rod 2 to rotate, thereby controlling the rotation of the valve, and thus realizing the electric start and stop of the device. The fixing plate 7 can provide support and stability for the installation of the small servo motor 8, and facilitates the fixing of the small servo motor 8 to the top of the device by bolts. The small servo motor 8 is prior art, and will not be described in detail in this application. The small servo motor 8 can be remotely controlled wirelessly. The specific wireless control principle is prior art and is not within the scope of this application, so it will not be described in detail.

[0029] The top surface of the mounting ring 6 has a slot, and a protective cover 9 is provided above the mounting ring 6. The protective cover 9 is slidably connected to the slot. The protective cover 9 can provide shielding and protection for the use of the small servo motor 8, preventing external substances from entering the small servo motor 8 and affecting its normal use. The outer surface of the protective cover 9 has filter holes, which can provide heat dissipation for the use of the small servo motor 8 to ensure its normal use.

[0030] Please see Figure 1 and Figure 2 Water-cooling channels 3 are installed on the inner wall of the regulating valve body 1 and inside the control lever 2. The water-cooling channels 3 are fixed to the inner wall of the regulating valve body 1 by existing technologies such as snap-fit, and can slide inside the clamp as the control lever 2 rotates. The water-cooling channels 3 enter the control lever 2 from the upper end along the inner wall of the valve and pass through the transmission frame 401 and the eccentric plug 402, extend out from the bottom of the control lever 2, and connect to the outlet 11 again along the inside of the regulating valve body 1.

[0031] The outer surface of the regulating valve body 1 is fixedly connected to the inlet 10 and the outlet 11, respectively. The two ends of the water cooling channel 3 are fixedly connected to the inlet 10 and the outlet 11, respectively. The water cooling channel 3 is made of plastic material and its surface is also treated with a high-temperature thermal barrier coating to avoid the water cooling channel 3 from obstructing the rotation of the control lever 2. This allows the water cooling channel 3 to change with the movement of the control lever 2 and the eccentric cock 402. The operator can flush cooling water into the inlet 10. The cooling water will flow through the inside of the regulating valve body 1 along the water cooling channel 3, thereby cooling the inside of the regulating valve body 1 to ensure the necessary strength of the material and improve the high-temperature resistance of the device. The ends of the inlet 10 and the outlet 11 are threaded with sealing caps to ensure that the two ends of the water cooling channel 3 can remain closed when the device does not need cooling.

[0032] Please see Figure 2 , Figure 3 and Figure 4 The regulating valve body 1 is internally connected to a control rod 2, and an external sealing mechanism 4 is provided for sealing. The sealing mechanism 4 includes a transmission frame 401, through which the control rod 2 passes and is fixedly connected. When the control rod 2 rotates, it can drive the transmission frame 401 to rotate together. The transmission frame 401 includes a support plate connecting the control rod 2 and the eccentric plug 402, and a support rod connecting the support plate. This gives the transmission frame 401 good stable connection performance, which can provide stable support for the eccentric plug 402 to seal the valve, and prevent the valve body from falling off under the impact of the conveying medium. This improves the stability of the device. The regulating valve body 1 has sufficient space inside, which will not affect the rotation of the eccentric plug 402.

[0033] An eccentric plug 402 is fixedly connected to the end of the transmission frame 401, and a valve pipe 403 is fixedly connected to the end of the regulating valve body 1. A valve seat 404, adapted to the eccentric plug 402, is provided on the inner wall of the valve pipe 403. Both the end of the eccentric plug 402 and the inner wall of the valve seat 404 are designed with the same curved surface shape. The rotation center of the eccentric plug 402 is offset from the center of the valve seat 404. This offset creates a wedge effect that allows the surface of the eccentric plug 402 to... The eccentric plug 402 and valve seat 404 are both designed with curved surfaces, and as the rotation continues, they become increasingly tighter to achieve a tight seal. Since both the eccentric plug 402 and the valve seat 404 have rounded surfaces at their ends, when the eccentric plug 402 rotates, it can fit perfectly against the inner wall of the valve seat 404. This reduces the contact friction that the eccentric plug 402 is subjected to, reduces friction damage to the eccentric plug 402, ensures the sealing effect of the eccentric plug 402, and extends the service life of the eccentric plug 402.

[0034] A sealing ring 405 is fixedly connected to the outer surface of the eccentric plug 402. The sealing ring 405 is adapted to the valve seat 404. The sealing ring 405 is located at a specific position on the curved surface of the eccentric plug 402, so that when the eccentric plug 402 and the valve seat 404 are sealed, the sealing ring 405 can seal any tiny gaps that may exist between them, thereby improving the sealing performance of the device.

[0035] Working principle: When the operator wants to adjust the internal pressure of the device, the small servo motor 8 is remotely started via wireless signal. The start of the small servo motor 8 drives the control rod 2 to rotate. The rotation of the control rod 2 drives the eccentric plug 402 to rotate inside the regulating valve body 1 through the transmission frame 401. When the eccentric plug 402 rotates to a certain position, it will gradually fit against the curved surface of the valve seat 404, and will become tighter and tighter as the control rod 2 continues to rotate, thereby enhancing the sealing effect between the eccentric plug 402 and the valve seat 404. When the internal temperature of the device is too high, the operator can input cooling water from the inlet 10 and discharge it from the outlet 11, using the flow of cooling water to cool the inside of the valve body, thus facilitating the use of the device in high-temperature environments.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric high-temperature pressure regulating device with an eccentric cock structure, comprising a regulating valve body (1), characterized in that: The regulating valve body (1) is rotatably connected to a control rod (2). Water cooling channels (3) are installed on the inner wall of the regulating valve body (1) and inside the control rod (2). A sealing mechanism (4) for sealing is provided on the outside of the control rod (2). The sealing mechanism (4) includes a transmission frame (401), the control lever (2) passes through the transmission frame (401) and is fixedly connected to the transmission frame (401), an eccentric plug (402) is fixedly connected to the end of the transmission frame (401), a valve tube (403) is fixedly connected to the end of the regulating valve body (1), and a valve seat (404) adapted to the eccentric plug (402) is provided on the inner wall of the valve tube (403).

2. The electric high-temperature pressure regulating device with an eccentric cock structure according to claim 1, characterized in that: A sealing ring (405) is fixedly connected to the outer surface of the eccentric plug (402), and the sealing ring (405) is adapted to the valve seat (404).

3. The electric high-temperature pressure regulating device with an eccentric cock structure according to claim 1, characterized in that: The top surface of the regulating valve body (1) is fixedly connected to a mounting flange (5) by bolts, and the top surface of the mounting flange (5) is fixedly connected to a mounting ring (6).

4. The electric high-temperature pressure regulating device with an eccentric cock structure according to claim 3, characterized in that: A fixing plate (7) is fixedly connected to the top surface of the mounting ring (6), and a small servo motor (8) is fixedly installed on the outside of the fixing plate (7) by bolts.

5. The electric high-temperature pressure regulating device with an eccentric cock structure according to claim 3, characterized in that: The mounting ring (6) has a slot on its top surface and a protective cover (9) is provided above the mounting ring (6). The protective cover (9) is slidably connected to the slot.

6. The electric high-temperature pressure regulating device with an eccentric cock structure according to claim 1, characterized in that: The outer surface of the regulating valve body (1) is fixedly connected to the water inlet (10) and the water outlet (11), and the two ends of the water cooling channel (3) are fixedly connected to the water inlet (10) and the water outlet (11), respectively.

7. The electric high-temperature pressure regulating device with an eccentric cock structure according to claim 1, characterized in that: The inner wall of the regulating valve body (1) and the surfaces of all devices exposed to the medium fluid are coated with a high-temperature thermal barrier coating.

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