Natural gas metering error correction device

Abstract

The utility model discloses a natural gas metering error correction device which comprises a natural gas correction device, installation pipes are arranged at the two ends of the natural gas correction device, and the ends, away from the natural gas correction device, of the installation pipes are fixedly connected with flange plates. The effect of automatically straightening the natural gas correction device is achieved in an elastic reset mode, and therefore the problems that due to installation horizontal calibration errors, the device inclines, and natural gas metering is not accurate are solved, a rubber ring is fixed to the outer surface of a conveying pipe, and when the natural gas correction device inclines due to external force collision, protruding blocks distributed in an integrated and circumferential mode abut against the rubber ring. When the collision force disappears, the device is driven to be placed in the forward direction by means of elasticity due to the fact that the elastic material of the device twists, the high-precision ultrasonic flow sensor, the pressure sensor and the like in the device are always located at correct measurement angles and positions, and it is guaranteed that metering errors are accurately corrected.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas correction device field, in particular to a kind of natural gas measurement error correction device. BACKGROUND

[0002] Natural gas measurement error correction device as the key equipment of improving measurement accuracy is widely applied in natural gas gate station, gas station and the measurement node of long-distance pipeline.

[0003] The existing natural gas measurement error correction device has some use hazards in installation and use process: since the device is manually installed on the pipeline with the cooperation of tightening device during installation, some horizontal calibration errors exist, and the natural gas measurement error device is usually equipped with high-precision sensors, such as ultrasonic flow sensor, pressure sensor, etc., once the device is tilted, the measurement angle and position of the sensor deviate from the design standard, and the measurement error cannot be accurately corrected, so that the natural gas measurement is inaccurate.

[0004] Therefore, a natural gas measurement error correction device is proposed. UTILITY MODEL CONTENT

[0005] In view of the above problems, the utility model provides a kind of natural gas measurement error correction device to solve the problems in the above background technology.

[0006] The technical scheme of the utility model is:

[0007] A kind of natural gas measurement error correction device, including natural gas correction device, both ends of the natural gas correction device are provided with installation pipe, the installation pipe is fixedly connected with flange at the end away from natural gas correction device, both ends of the natural gas correction device are fixedly connected with conveying pipe, the installation pipe is fixedly connected with connecting sleeve at the end away from flange, reset component for the natural gas measurement error correction device is arranged between the connecting sleeve and conveying pipe, the reset component includes sealing bearing, the outer surface of the conveying pipe is fixedly connected with the inner wall of sealing bearing, the inner wall of the connecting sleeve is fixedly connected with the outer surface of sealing bearing.

[0008] In further technical scheme, the end of the connecting sleeve away from installation pipe is detachably connected with sealing cover, the side of the sealing cover away from connecting sleeve is fixedly connected with dust cover that is attached to the outer surface of conveying pipe.

[0009] Through the above technical scheme, by setting sealing cover and dust cover, sealing dustproof structure can be formed between conveying pipe, connecting sleeve and sealing bearing, so as to avoid dust from entering and wearing reset component.

[0010] In a further technical solution, the reset assembly further comprises a rubber ring, which is fixedly connected to the outer surface of the conveying pipe, and a circumferentially distributed protrusion is fixedly connected to the outer surface of the rubber ring, a connecting hole is formed in the surface of the protrusion, a circumferentially distributed limiting hook is fixedly connected to the inner wall of the sealing cover, and the end of the limiting hook away from the sealing cover is connected with the connecting hole.

[0011] Through the above technical solution, when the natural gas correction device is installed, the flange plate on the installation pipe surface is connected with the installation position, and the natural gas correction device is kept in a right position during the process of fixing the flange plate with the installation position. When one end of the natural gas correction device is connected, even if the natural gas correction device is tilted during the process of installing the other end of the natural gas correction device, the device can be kept in a right position with the help of the reset assembly. Once the natural gas correction device is fixed but tilted due to collision, the rubber ring will be twisted by the force of the protrusion. However, since the rubber ring and the protrusion are made of elastic material, the natural gas correction device will return to its original position when the collision force disappears. In addition, the limiting hook can keep the connection state of the conveying pipe, the connecting sleeve and the sealing bearing consistent.

[0012] In a further technical solution, the sealing cover is provided with two symmetric half-ring structures, a sealing ring is fixedly connected to one end of the sealing cover facing the connecting sleeve, a socket is formed in the end surface of the connecting sleeve facing the sealing cover, the sealing ring and the socket are connected, and a bolt is arranged between the sealing ring and the socket.

[0013] Through the above technical solution, the symmetric structure of the sealing cover can be used to remove the sealing cover from the surface of the connecting sleeve, expose the rubber ring for maintenance, and avoid the rubber ring losing the reset effect due to long-term use.

[0014] In a further technical solution, the protrusion and the rubber ring are integrally fixed, and the protrusion and the rubber ring are made of the same material.

[0015] Through the above technical solution, the elastic reset effect is improved.

[0016] Compared with the prior art, the natural gas correction device has the following advantages:

[0017] The reset assembly is provided to automatically right the natural gas correction device in an elastic reset manner, thereby solving the problem of device tilting caused by installation horizontal calibration error and ensuring accurate correction of measurement error. The rubber ring is fixed to the outer surface of the conveying pipe, the protrusion is circumferentially distributed, and the protrusion is twisted due to its elastic material when the natural gas correction device is tilted due to external force collision. When the collision force disappears, the device is reset in a right position by the elastic force, the high-precision ultrasonic flow sensor, pressure sensor and other devices in the device are always in a correct measurement angle and position, and accurate correction of measurement error is ensured. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional structural diagram of the natural gas correction device and installation pipe of this utility model;

[0020] Figure 3 This is a cross-sectional assembly structure diagram of the conveying pipe and connecting sleeve of this utility model;

[0021] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A;

[0022] Figure 5 This is a schematic diagram of the assembly structure of the sealing cover and connecting sleeve of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the rubber ring and protrusion of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Natural gas calibration device; 2. Installation pipe; 3. Flange; 4. Delivery pipe; 11. Sealing cover; 12. Sealing ring; 13. Inlet; 14. Dust cover;

[0026] Reset assembly: 5. Connecting sleeve; 6. Sealed bearing; 7. Rubber ring; 8. Protrusion; 9. Limit hook; 10. Connecting hole. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set with", "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0030] Embodiments:

[0031] Please refer to Figures 1-6 A natural gas metering error correction device, including natural gas correction device 1, the both ends of natural gas correction device 1 are provided with installation pipe 2, the end of installation pipe 2 away from natural gas correction device 1 is fixedly connected with flange 3, the both ends of natural gas correction device 1 are fixedly connected with conveying pipe 4, the end of installation pipe 2 away from flange 3 is fixedly connected with connecting sleeve 5, reset assembly for the natural gas metering error correction device is arranged between connecting sleeve 5 and conveying pipe 4, reset assembly includes sealing bearing 6, the outer surface of conveying pipe 4 is fixedly connected with the inner wall of sealing bearing 6, the inner wall of connecting sleeve 5 is fixedly connected with the outer surface of sealing bearing 6.

[0032] Please refer to Figures 3-5 The end of connecting sleeve 5 away from installation pipe 2 is detachably connected with sealing cover 11, sealing cover 11 is fixedly connected with dust cover 14 pasted on the outer surface of conveying pipe 4 on the side away from connecting sleeve 5.

[0033] By setting sealing cover 11, dust cover 14, conveying pipe 4, connecting sleeve 5, sealing bearing 6 can have sealing dustproof structure, avoid dust into abrasion reset assembly.

[0034] Please refer to Figures 3-6 Reset assembly further includes rubber ring 7, rubber ring 7 is fixedly connected on the outer surface of conveying pipe 4, the outer surface of rubber ring 7 is fixedly connected with circumferentially distributed lug 8, lug 8 is provided with connecting hole 10 on the surface, the inner wall of sealing cover 11 is fixedly connected with circumferentially distributed limit hook 9, the end of limit hook 9 away from sealing cover 11 is clamped with connecting hole 10.

[0035] In the installation of natural gas correction device 1, the flange plate 3 on the surface of the installation pipe 2 is connected with the installation site, and the natural gas correction device 1 is kept in the right position during the process. The flange plate 3 is fixed with the installation site. When the natural gas correction device 1 is connected at one end, even if the natural gas correction device 1 is tilted during the process of installing the other end of the natural gas correction device 1, it can be kept in the right position with the help of the reset assembly. Once the natural gas correction device 1 has been fixed but is tilted by collision, the rubber ring 7 will be twisted by the force of the protruding block 8. However, since the rubber ring 7 and the protruding block 8 are both made of elastic material, the natural gas correction device 1 will return to its original state when the collision force disappears. In addition, the limiting hook 9 can conveniently keep the connection state of the conveying pipe 4, the connecting sleeve 5 and the sealing bearing 6 consistent.

[0036] Please refer to Figures 1-5 The sealing cover 11 is provided with two symmetric half-ring structures, and the sealing ring 12 is fixedly connected to one end of the sealing cover 11 facing the connecting sleeve 5. The end surface of the connecting sleeve 5 facing the sealing cover 11 is provided with a socket 13, and the sealing ring 12 and the socket 13 are connected by clamping, and the sealing ring 12 and the socket 13 are connected by clamping.

[0037] By setting the symmetric structure of the sealing cover 11, the sealing cover 11 can be removed from the surface of the connecting sleeve 5 to expose the rubber ring 7 for maintenance, avoiding the loss of reset effect of the rubber ring 7 after long-term use.

[0038] Please refer to Figure 3 and Figure 6 The protruding block 8 and the rubber ring 7 are integrally fixed, and the material of the protruding block 8 and the rubber ring 7 is the same.

[0039] Conveniently improve the elastic reset effect.

[0040] In work, first, one end of natural gas correction device 1 is installed pipe 2 corresponding to the installation position with flange plate 3 is connected, in the process of connection, the whole process attention to keep natural gas correction device 1 in the right state, then flange plate 3 and installation site is firmly fixed, the preliminary connection of this end is completed, when starting to install the other end of natural gas correction device 1, when the collision is skewed, reset component self-adjusting, rubber ring 7 and its integral protruding block 8 in reset component play a role, when the device is collided and skewed, rubber ring 7 will be twisted due to protruding block 8 stress deformation, because they are both elastic material, once the collision force disappears, rubber ring 7 will rely on its elasticity to drive natural gas correction device 1 to restore to the right state, at the same time, the flange plate 3 of this end is also aligned with the installation site, ensure that natural gas correction device 1 is always in the right position, finally complete the stable installation, in the process of using the device, natural gas correction device 1 collision skewed can also use reset component reset, after both ends are installed, seal cover 11 is installed on connecting sleeve 5, when installing, first, seal ring 12 of seal cover 11 one end is aligned with the socket 13 of connecting sleeve 5, make both card joint, then use bolt to further fasten, ensure the sealing stability.

[0041] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A natural gas metering error correction device comprising a natural gas correction device (1), characterized in that, Both ends of the natural gas correction device (1) are provided with mounting pipes (2), one end of the mounting pipe (2) away from the natural gas correction device (1) is fixedly connected with a flange (3), both ends of the natural gas correction device (1) are fixedly connected with a conveying pipe (4), one end of the mounting pipe (2) away from the flange (3) is fixedly connected with a connecting sleeve (5), a reset assembly for the natural gas metering error correction device is arranged between the connecting sleeve (5) and the conveying pipe (4), the reset assembly comprises a sealing bearing (6), the outer surface of the conveying pipe (4) is fixedly connected with the inner wall of the sealing bearing (6), and the inner wall of the connecting sleeve (5) is fixedly connected with the outer surface of the sealing bearing (6).

2. A natural gas meter error correction device according to claim 1, wherein, One end of the connecting sleeve (5) away from the mounting pipe (2) is detachably connected with a sealing cover (11), one side of the sealing cover (11) away from the connecting sleeve (5) is fixedly connected with a dust cover (14) abutting the outer surface of the conveying pipe (4).

3. A natural gas meter error correction device according to claim 2, wherein, The reset assembly further comprises a rubber ring (7), the rubber ring (7) is fixedly connected to the outer surface of the conveying pipe (4), the outer surface of the rubber ring (7) is fixedly connected with circumferentially distributed protrusions (8), the surface of the protrusion (8) is provided with a connecting hole (10), the inner wall of the sealing cover (11) is fixedly connected with circumferentially distributed limiting hooks (9), and one end of the limiting hook (9) away from the sealing cover (11) is connected with the connecting hole (10).

4. A natural gas meter error correction device according to claim 2, wherein, The sealing cover (11) is provided with two symmetric half-ring structures, one end of the sealing cover (11) facing the connecting sleeve (5) is fixedly connected with a sealing ring (12), one end of the connecting sleeve (5) facing the sealing cover (11) is provided with a socket (13), the sealing ring (12) and the socket (13) are connected, and the sealing ring (12) and the socket (13) are provided with bolts.

5. A natural gas meter error correction device according to claim 3, wherein, The protrusion (8) and the rubber ring (7) are integrally fixed, and the protrusion (8) and the rubber ring (7) are made of the same material.

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