Low-temperature-resistant and high-pressure-resistant adjustable check valve for deep-sea oil gas

Abstract

The utility model discloses a low-temperature-resistant and high-pressure-resistant adjustable check valve for deep sea oil gas, which relates to the field of check valves, and adopts the technical scheme that the low-temperature-resistant and high-pressure-resistant adjustable check valve comprises a valve body and a driving device for driving the opening degree of a valve clack in the valve body, and the opening degree of the valve clack of the driving device is automatically adjusted by an opening degree control device according to temperature and pressure changes. A surface shell of the driving device is sealed, and a plurality of through grooves penetrating through the two sides of the surface shell are formed in the surface shell so that seawater can flow, and the effect is that the opening degree control device can monitor the temperature change condition of deep sea in real time, the driving device is automatically adjusted according to monitored temperature data, and then the opening degree of the valve clack is flexibly adjusted; the check valve can accurately control the oil gas flow according to different deep sea working conditions, and the problems of low mining efficiency, equipment damage and the like caused by unreasonable opening degree of the valve clack are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of check valve, more specifically, it relates to a low temperature and high pressure adjustable check valve for deep sea oil and gas. BACKGROUND

[0002] The check valve for deep sea oil and gas is a key equipment to ensure the safety and stable operation of deep sea oil and gas exploitation. It is mainly installed in the deep sea oil and gas pipeline system. The valve disc, as the core component, can automatically open when the fluid flows forward, allowing the oil and gas to flow smoothly. When the fluid appears reverse flow trend, the valve disc quickly closes, effectively preventing the backflow of oil and gas, avoiding damage to the upstream equipment and maintaining the pressure stability of the entire conveying system.

[0003] However, in the field of deep sea oil and gas exploitation, there are many problems in the driving device of the valve disc in the check valve. On the one hand, due to the particularity of the deep sea environment, the heat generated during equipment operation is difficult to dissipate effectively. The driving device generates heat during continuous operation due to the conversion of electrical energy into mechanical energy, etc. The current heat dissipation methods, such as traditional air cooling and liquid cooling, are difficult to implement in the conditions of deep sea low temperature and high pressure and limited space. The equipment is complex, resulting in high heat dissipation cost. On the other hand, the temperature and pressure of the deep sea are in dynamic change all the time, and the temperature and pressure difference is obvious at different depths and different time periods. The existing driving device lacks intelligent adjustment mechanism and cannot flexibly adjust the valve disc opening according to the real-time monitored deep sea temperature and pressure data. This makes the check valve unable to accurately control the oil and gas flow when facing complex deep sea working conditions, affecting the exploitation efficiency, and may cause impact on the valve disc and the entire check valve structure due to unreasonable valve disc opening when the pressure suddenly changes, increasing the risk of equipment damage and causing serious safety hazards such as oil and gas leakage, which poses a great threat to the deep sea ecological environment and exploitation operation.

[0004] Therefore, in order to solve the above technical problems, the present application provides a low temperature and high pressure adjustable check valve for deep sea oil and gas. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a low temperature and high pressure adjustable check valve for deep sea oil and gas.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a low temperature and high pressure adjustable check valve for deep sea oil and gas, comprising a valve body and a driving device for driving the opening of the valve disc inside the valve body, the driving device automatically adjusts the opening of the valve disc according to the temperature and pressure changes, the surface shell of the driving device is sealed, and a plurality of through grooves are formed on the surface shell to allow seawater to flow.

[0007] Preferably, the heat dissipation devices inside the driving device are arranged along the through grooves.

[0008] Preferably, the anti-blocking cover is arranged on both sides of the driving device.

[0009] Preferably, the anti-blocking cover is arranged on both sides of the driving device.

[0010] Preferably, the anti-blocking cover is arranged on both sides of the driving device.

[0011] Preferably, the opening degree control device comprises:

[0012] A temperature and pressure sensor is designed in the valve body and located at the side of the valve disc, used for measuring the pressure and temperature in the valve body and transmitting signals to the microprocessor;

[0013] The microprocessor sends a signal to the actuator to make the driving device adjust the opening degree of the valve disc according to the output signal of the temperature and pressure sensor;

[0014] The actuator drives the driving device according to the signal of the microprocessor to adjust the opening degree of the valve disc;

[0015] The power supply supplies power to the power-consuming components on the opening degree control device.

[0016] Preferably, the anti-blocking cover and the shell of the driving device are made of titanium alloy material.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1、The opening degree control device can monitor the temperature change of the deep sea in real time, automatically adjust the driving device according to the monitored temperature data, and then flexibly adjust the opening degree of the valve disc, so that the check valve can accurately control the oil and gas flow according to different deep sea working conditions, and avoid problems such as low mining efficiency and equipment damage caused by unreasonable valve disc opening degree. At the same time, the surface shell of the driving device is sealed, which can effectively resist the influence of the deep sea low temperature and high pressure environment on the internal components. A plurality of through grooves are formed on the shell and penetrate the two sides of the driving device. During the operation of the equipment, seawater can flow through the through grooves, and the flowing seawater can carry away the heat generated during the operation of the driving device, realizing natural heat dissipation, solving the problems of high cost and difficulty in deep sea implementation of the traditional heat dissipation mode, and guaranteeing the stable and reliable operation of the check valve in the deep sea environment, so as to solve the problems in the background technology;

[0019] 2、The anti-blocking cover is installed on the two sides of the driving device, which can provide multiple safeguards for the operation of the equipment. There are various plankton, silt and other small particle impurities in the deep sea environment. They flow with seawater and easily enter the through groove of the driving device, causing blockage. The anti-blocking cover can effectively block these impurities and prevent the above-mentioned impurities from blocking the through groove.

[0020] 3、In the process of descending the rod part, the rod part drives the movement of the sliding sleeve through the bearing, and the sliding sleeve slides along the slide rod to maintain the linear movement of the bearing. In this way, the screw does not need to be limited during installation, and the screw will not be separated from the connecting groove seat through the above-mentioned parts, avoiding the loss. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is another angle of the utility model Figure 1 specific structure schematic diagram;

[0024] Figure 3 It is a specific structure schematic diagram of the anti-blocking cover in the utility model;

[0025] Figure 4 It is an A partial structure enlarged view of the utility model Figure 3 ;

[0026] Figure 5 It is a specific structure schematic diagram of the anti-blocking cover in the utility model.

[0027] In the figure: 1, valve body; 2, driving device; 3, opening control device; 4, through slot; 5, anti-blocking cover; 6, connecting groove; 7, connecting plate; 8, connecting block; 9, through hole; 10, screw hole; 11, screw; 1101, rod part; 1102, rotating part; 12, sliding rod; 13, sliding sleeve; 14, bearing. DETAILED DESCRIPTION

[0028] As Figures 1-5 shown, the utility model provides a low temperature and high pressure resistant adjustable check valve for deep sea oil and gas, including valve body 1 and driving device 2 that drives the opening of valve clack inside valve body 1, and driving device 2 is automatically adjusted valve clack opening according to temperature and pressure change by opening control device 3, and the surface shell of driving device 2 is sealed, and a plurality of through slots 4 that penetrate both sides are formed on it to flow seawater.

[0029] When being in working condition, driving device 2 is responsible for driving the opening of valve clack inside valve body 1, and opening control device 3 can monitor the temperature change of deep sea in real time, and automatically adjusts driving device 2 according to the temperature data monitored, and then flexibly adjusts the opening of valve clack, so that check valve can accurately control oil and gas flow according to different deep sea working conditions, and avoid the problems such as low exploitation efficiency and equipment damage caused by unreasonable valve clack opening. Meanwhile, the surface shell of driving device 2 is sealed, which can effectively resist the influence of deep sea low temperature and high pressure environment on internal components. The plurality of through slots 4 that penetrate both sides of driving device 2 are formed on the shell, and seawater can flow through these through slots 4 during equipment operation, and the flowing seawater can take away the heat generated by driving device 2 during work, realizing natural heat dissipation, solving the problems such as great difficulty and high cost of traditional heat dissipation mode in deep sea, and guaranteeing the stable and reliable operation of check valve in deep sea environment.

[0030] Further, the heat dissipation devices in the driving device 2 are arranged along the through groove 4, and since the through groove 4 can supply seawater flow, it creates good conditions for heat dissipation. The heat dissipation devices arranged along the through groove 4 can be maximally close to the flowing seawater, thereby greatly improving the heat dissipation efficiency. The seawater continuously flows through the through groove 4 and continuously takes away the heat generated by the devices. Compared with the uniform distribution of the devices, the heat transfer path is shorter, the heat dissipation speed is faster, and the two sides of the driving device 2 are both provided with the anti-blocking cover 5, which can provide multiple safeguards for the operation of the equipment. There are various plankton, silt and other small particle impurities in the deep sea environment, which flow with the seawater and easily enter the through groove 4 of the driving device 2, causing blockage. The anti-blocking cover 5 can effectively block these impurities like a solid barrier, avoid the above-mentioned impurities from blocking the through groove 4, and affect the normal heat dissipation. The anti-blocking cover 5 and the shell of the driving device 2 are both made of titanium alloy material, the titanium alloy has high strength characteristics, can withstand the great pressure of the deep sea, ensures that the anti-blocking cover 5 will not be deformed due to water pressure in the harsh deep sea environment, and always maintains the structural integrity of blocking the impurities, the shell of the driving device 2 can also effectively protect the internal precise components from being damaged by high pressure, and the titanium alloy has excellent heat conduction performance, which can well cooperate with the seawater flow to dissipate heat for the driving device 2.

[0031] The utility model discloses the specific structure of the anti-blocking cover 5 installation is given: the front and back of the driving device 2 are both fixedly connected with the connecting groove seat 6, and the both sides of the anti-blocking cover 5 are fixed with the connecting block 8 through the connecting plate 7, the surface of the connecting groove seat 6 is provided with the through hole 9 on the both sides, and the surface of the connecting block 8 is provided with the screw hole 10 on the both sides, and the through hole 9 is passed through the screw 11 and then clockwise is installed into the screw hole 10.

[0032] When installing, the connecting block 8 on the both sides of the anti-blocking cover 5 is inserted into the connecting groove seat 6, after inserting, the screw hole 10 and the through hole 9 are just aligned, and then the screw 11 is passed through the through hole 9 on the connecting groove seat 6 and then clockwise is installed into the screw hole 10 on the connecting block 8, finally the installation of the anti-blocking cover 5 is completed, and vice versa, the screw 11 is disassembled, and the connecting block 8 is pulled out from the connecting groove seat 6 to complete the disassembly of the anti-blocking cover 5.

[0033] Further, the surface of the connecting groove seat 6 is fixedly connected with the sliding rod 12 for the sliding sleeve 13 to slide on the both sides of the through hole 9 (the top end of the sliding rod 12 is provided with a top plate to prevent the sliding sleeve 13 from separating from the sliding rod 12), and the sliding sleeve 13 is fixedly connected with the bearing 14, the rod part 1101 of the screw 11 is fixed in the inner ring of the bearing 14, and the rotating part 1102 is fixed to the top end of the rod part 1101.

[0034] That is, the screw 11 is always aligned with the through hole 9, when the connecting block 8 is inserted into the connecting groove 6, only need to pass the screw through the through hole 9, then clockwise rotate its rotating part 1102, the rotating part 1102 drives the rotation of the inner ring of bearing 14, its inner ring rotates along its outer ring, can install the stem part 1101 into the screw hole 10, complete the installation of the anti-blocking cover 5, in the process of stem part 1101 downward, stem part 1101 will pass through the bearing 14 to drive the movement of the sliding sleeve 13, the sliding sleeve 13 slides along the slide rod 12 to maintain the linear movement of the bearing 14, so that the screw 11 does not need to be limited when installing the screw 11, and the screw 11 cannot be separated from the connecting groove 6 by the above-mentioned components, avoiding the loss.

[0035] The utility model also gives the specific structure of opening degree control device 3: opening degree control device 3 includes temperature, pressure sensor, microprocessor (model number: STM32H7), actuator (model number: PK266-02A) and power (microprocessor and actuator are arranged on driving device 2).

[0036] The working of opening degree control device 3 is based on a set of precise sensing, operation and driving mechanism. First, the temperature and pressure sensor, as the "vanguard" of information collection, is placed in the key position beside the valve flap in the valve body 1, and measures the pressure and temperature in the valve body 1 at all times. Once the data is obtained, the sensor quickly transmits these signals to the microprocessor, which acts as the "brain" of the entire system. After receiving the signals, the microprocessor performs in-depth analysis and operation, generates corresponding control instructions based on the pre-set algorithm and the corresponding relationship between pressure, temperature and valve flap opening degree, and then sends signals to the actuator to adjust the valve flap opening degree of the driving device 2. The actuator, as the "executor" of the actual operation, drives the driving device 2 immediately after receiving the signal from the microprocessor, and realizes the precise adjustment of the valve flap opening degree through a series of mechanical transmission or electrical control actions. Throughout the process, the power supply stably supplies power to the electrical components on the opening degree control device 3, ensuring the continuous and stable operation of the components, and ensuring that the check valve can flexibly and efficiently adjust the valve flap opening degree according to the complex and variable pressure and temperature conditions in the deep-sea oil and gas exploitation process, and maintain the smooth and safe oil and gas transportation.

[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings shown in the specification and the above description; however, any person skilled in the art can make slight changes, modifications and equivalent changes of the present application within the scope of the technical scheme of the present application, and the equivalent embodiments of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A low-temperature and high-pressure resistant adjustable check valve for deep-sea oil and gas, characterized in that: The utility model relates to a valve body (1) and drive the valve body (1) inside the valve clack opening degree drive device (2), the drive device (2) is by opening degree control device (3) according to temperature, pressure change automatically adjusts the valve clack opening degree, the surface shell of drive device (2) is sealed, and a plurality of through grooves (4) are set up on it and are penetrated to its both sides to supply seawater flow; ​ The opening degree control device (3) comprises: Temperature, pressure sensor, which is designed in the valve body (1) and is located on the side of the valve clack, is used for measuring the pressure and temperature in the valve body (1) and transmitting the signal to the microprocessor; Microprocessor: according to the temperature and pressure sensor output signal, the signal of making drive device (2) adjustment valve clack opening degree is sent to actuator; Actuator: according to the signal of microprocessor to drive device (2) is driven to the valve clack opening degree is adjusted; Power supply: the power supply part on opening degree control device (3) is powered.

2. The low-temperature-resistant and high-pressure-resistant adjustable check valve for deep-sea oil and gas as claimed in claim 1, characterized in that: The heat dissipation device in drive device (2) is arranged along the through groove (4).

3. The low-temperature-resistant and high-pressure-resistant adjustable check valve for deep-sea oil and gas as claimed in claim 1, characterized in that: The both sides of drive device (2) are provided with anti-blocking covers (5).

4. The low-temperature-resistant and high-pressure-resistant adjustable check valve for deep-sea oil and gas as claimed in claim 3, characterized in that: The front and back of drive device (2) are fixedly connected with connecting groove seats (6), the both sides of anti-blocking cover (5) are fixed with connecting plates (7) and connecting blocks (8), the both sides of the surface of connecting groove seat (6) are provided with through holes (9), the both sides of the surface of connecting block (8) are provided with screw holes (10), the through hole (9) is passed through by screw (11) and then clockwise is installed into screw hole (10).

5. The low-temperature-resistant and high-pressure-resistant adjustable check valve for deep-sea oil and gas as claimed in claim 4, characterized in that: The both sides of the surface of connecting groove seat (6) are fixedly connected with slide rods (12) for the sliding of sliding sleeves (13), and the sliding sleeves (13) are fixedly connected with bearings (14), the stem (1101) of screw (11) is fixed in the inner ring of bearing (14), and the rotating part (1102) is fixed to the top end of stem (1101).

6. The low temperature resistant high pressure adjustable check valve for deep sea oil and gas as claimed in claim 3, wherein: The shell of anti-blocking cover (5) and drive device (2) is made of titanium alloy material.

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