CN219350102U

CN219350102U - Gas density relay device with flow measurement function

Info

Publication number: CN219350102U
Application number: CN202320664411.5U
Authority: CN
Inventors: 缪永强; 陈滨; 韩淼淼; 李锡好
Original assignee: Shandong Shandian Power Engineering Co ltd
Current assignee: Shandong Shandian Power Engineering Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-07-14
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to a gas density relay device with a flow measurement function, which comprises a relay, wherein a plurality of guide pipes are oppositely arranged on the peripheral side of an air inlet pipe of the relay, openings at the bottom end of each guide pipe are inserted into the air inlet pipe of the relay and are fixedly connected with the air inlet pipe of the relay, and a plurality of connecting pipes are arranged on the peripheral side of the top of each guide pipe in a communicating manner. The utility model relates to the technical field of gas density relay devices. In the using process of the relay, the gas flow in the gas inlet pipe of the relay is detected through the mutual matching of the guide pipe, the connecting pipe, the plugging assembly and the indicating assembly, an operator can determine that the relay needs to be calibrated when the relay pointer generates larger deviation through the comparison between the gas flow detection value and the pointing value of the relay pointer, the calibration frequency of the relay is reduced, and the labor intensity of a user is reduced.

Description

Gas density relay device with flow measurement function

Technical Field

The utility model relates to the technical field of gas density relay devices, in particular to a gas density relay device with a flow measurement function.

Background

SF6 gas density relay A gas density meter for SF 6-gas is a pressure meter equipped with electrical accessories, mainly for switching equipment in the energy industry, which integrates pressure measurement and limit switches in one device, and adjusts the influence of ambient temperature by a special compensation system.

In the using process of the SF6 gas density relay, on-off signals are generally output through a wire connection interface and used for alarming or locking output of the switch equipment, as the using time of the SF6 gas density relay is prolonged, the elastic performance of the C-shaped pipe is changed due to the fact that the C-shaped pipe is subjected to repeated deformation and reset, a certain deviation of the pointer of the SF6 gas density relay is caused, the SF6 gas density relay needs to be calibrated constantly in the using process, and the labor intensity of a user is increased.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present utility model to provide a gas density relay device with a flow measurement function, so as to solve the problems set forth in the background art.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a gas density relay device with flow measurement function, includes the relay, the periphery side of relay intake pipe is equipped with a plurality of pipes relatively, and the opening of every pipe bottom all inserts in the intake pipe of relay and with the intake pipe fixed connection of relay, a plurality of connecting pipes have been installed to the periphery side intercommunication at pipe top, and the intake end of every connecting pipe inserts in the intake pipe of all inserting the relay and with the intake pipe fixed connection of relay, be equipped with the shutoff subassembly in the intake pipe of relay, and the opening of the corresponding connecting pipe of shutoff subassembly, be equipped with indicating assembly on the periphery wall of relay.

The present utility model may be further configured in a preferred example to: the plugging assembly comprises a push plate, the push plate is slidably arranged in an air inlet pipe of the relay, two sealing rings are oppositely arranged on the periphery side of the push plate, a supporting ring is arranged below the push plate, the outer annular wall of the supporting ring is fixedly connected with the air inlet pipe of the relay, and an outer cylinder is fixedly arranged in the supporting ring in a penetrating mode.

Through adopting above-mentioned technical scheme, through the cooperation of support ring and urceolus, separate into two parts with relay intake pipe for the gas that gets into in the relay intake pipe must pass through connecting pipe and pipe when flowing.

The present utility model may be further configured in a preferred example to: the indicating assembly comprises a transparent pipe, an indicating scale is arranged on the peripheral wall of the transparent pipe, the transparent pipe is fixedly arranged on the peripheral wall of the relay air inlet pipe, the transparent pipe is positioned between two corresponding guide pipes, a balancing weight is arranged in the transparent pipe in a sliding mode, a sealing ring is arranged on the peripheral wall of the balancing weight, and the inside of the outer cylinder is communicated with the inside of the transparent pipe through a soft pipe.

Through adopting above-mentioned technical scheme, through the mutually supporting of transparent pipe and soft pipe, can form the gaseous of specific pressure in balancing weight bottom according to the quantity that the connecting pipe was opened, the user can judge gas flow according to the position of balancing weight.

The present utility model may be further configured in a preferred example to: the top of the outer cylinder is slidably provided with a guide rod, the top of the guide rod is fixedly connected with the push plate, the bottom of the guide rod is fixedly provided with a piston plate, and the outer peripheral wall of the piston plate is contacted with the inner wall of the outer cylinder.

Through adopting above-mentioned technical scheme, through the mutually supporting of guide arm, urceolus and piston board, retrain the direction to the removal of push pedal for the vertical direction of push pedal reciprocates, prevents that the push pedal from producing the inclination at the removal in-process, makes push pedal and relay intake pipe inner wall produce great frictional force, influences the slip of push pedal.

The present utility model may be further configured in a preferred example to: and a spring is arranged between the push plate and the supporting ring, and two ends of the spring are fixedly connected with the supporting ring and the push plate respectively.

Through adopting above-mentioned technical scheme, support through the spring makes the push pedal can shutoff the connecting pipe at the top under the condition that loses external force, and makes the push pedal still can move downwards.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. in the using process of the relay, the gas flow in the gas inlet pipe of the relay is detected through the mutual matching of the guide pipe, the connecting pipe, the plugging assembly and the indicating assembly, an operator can determine that the relay needs to be calibrated when the relay pointer generates larger deviation through the comparison between the gas flow detection value and the pointing value of the relay pointer, the calibration frequency of the relay is reduced, and the labor intensity of a user is reduced;

2. the weight of the push plate and the pulling force of the outer cylinder negative pressure to the push plate are counteracted through the support of the spring, so that the push plate can block the uppermost connecting pipe under the condition of losing external force, the push plate can still move downwards, and meanwhile, the piston plate is positioned at the top of the outer cylinder through the pulling of the guide rod, so that the inner cylinder is in a stable negative pressure state.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic view of the internal structure of a part of the relay of the present embodiment;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2 of the present embodiment.

In the figure, 1, a relay; 2. a conduit; 3. a connecting pipe; 4. a plugging assembly; 41. a push plate; 42. a seal ring; 43. a support ring; 44. an outer cylinder; 45. a guide rod; 46. a piston plate; 47. a spring; 5. an indication assembly; 51. a transparent tube; 52. balancing weight; 53. a seal ring; 54. a flexible tube.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Examples:

referring to fig. 1-3, the gas density relay device with the flow measurement function disclosed by the utility model comprises a relay 1, wherein the relay 1 is an SF6 gas density relay 1, a plurality of guide pipes 2 are oppositely arranged on the outer peripheral side of an air inlet pipe of the relay 1, openings at the bottom end of each guide pipe 2 are inserted into the air inlet pipe of the relay 1 and are fixedly connected with the air inlet pipe of the relay 1, a plurality of connecting pipes 3 are arranged on the outer peripheral side of the top of each guide pipe 2 in a communicating manner, the air inlet end of each connecting pipe 3 is inserted into the air inlet pipe of the relay 1 and is fixedly connected with the air inlet pipe of the relay 1, the pipe diameter of each guide pipe 2 is far greater than the diameter of each connecting pipe 3, so that gas entering the guide pipes 2 from a plurality of connecting pipes 3 can flow out in time, a plugging component 4 is arranged in the air inlet pipe of the relay 1, and the plugging component 4 plugs the openings corresponding to the connecting pipes 3. The plugging assembly 4 comprises a push plate 41, the push plate 41 is slidably arranged in an air inlet pipe of the relay 1, two sealing rings 42 for plugging gaps between the push plate 41 and the inner wall of the air inlet end of the relay 1 are oppositely arranged on the outer peripheral side of the push plate 41, the two sealing rings 42 are positioned on the upper side and the lower side of a corresponding connecting pipe 3, a supporting ring 43 is arranged below the push plate 41, the outer annular wall of the supporting ring 43 is fixedly connected with the air inlet pipe of the relay 1, the supporting plate is positioned below the connecting pipe 3, an outer cylinder 44 is fixedly arranged in the supporting ring 43 in a penetrating manner, air with proper negative pressure is filled in the outer cylinder, a guide rod 45 is slidably arranged on the top end of the outer cylinder 44 in a penetrating manner, the top end of the guide rod 45 is fixedly connected with the push plate 41, a piston plate 46 is fixedly arranged at the bottom end of the guide rod 45, the outer peripheral wall of the piston plate 46 is contacted with the inner wall of the outer cylinder 44, a spring 47 is arranged between the push plate 41 and the supporting ring 43, and two ends of the spring 47 are fixedly connected with the supporting ring 43 and the push plate 41 respectively. Through the mutual cooperation of the support ring 43 and the outer cylinder 44, the air inlet pipe of the relay 1 is divided into two parts, so that air entering the air inlet pipe of the relay 1 is required to pass through the connecting pipe 3 and the guide pipe 2 when flowing, the movement of the push plate 41 is restrained and guided through the mutual cooperation of the guide rod 45, the outer cylinder 44 and the piston plate 46, the push plate 41 is enabled to move up and down in the vertical direction, the gravity of the push plate 41 and the pulling force of the guide rod 45 to the push plate 41 when the negative pressure in the outer cylinder 44 pulls the piston plate 46 to move downwards are counteracted through the support of the spring 47, the push plate 41 can block the uppermost connecting pipe 3 under the condition of losing external force, and the push plate 41 can still move downwards.

An indication component 5 is arranged on the peripheral wall of the relay 1. The indicating assembly 5 comprises a transparent tube 51, the transparent tube 51 can be a glass tube or a plastic tube, and the like, an indicating scale is arranged on the peripheral wall of the transparent tube 51, the transparent tube 51 is fixedly arranged on the peripheral wall of the air inlet tube of the relay 1, the transparent tube 51 is positioned between two corresponding guide tubes 2, a balancing weight 52 is slidably arranged in the transparent tube 51, a sealing ring 53 for sealing a gap between the balancing weight 52 and the peripheral wall of the transparent tube 51 is arranged on the peripheral wall of the balancing weight 52, a soft tube 54 is arranged between the outer tube and the transparent tube 51, one end of the soft tube 54 is inserted into the outer tube and fixedly connected with the tube wall of the outer tube, and the other end of the soft tube 54 is inserted into the transparent tube 51 and fixedly connected with the tube wall of the transparent tube 51 and the tube wall of the air inlet tube of the relay 1. Through the mutual matching of the transparent pipe 51 and the soft pipe 54, gas with specific pressure can be formed at the bottom of the balancing weight 52 according to the opening quantity of the connecting pipe 3, so that the balancing weight 52 is controlled to move upwards without setting an additional power source.

The implementation principle of the embodiment is as follows: in the using process of the relay 1, air enters an air inlet pipe from the air inlet of the air inlet pipe of the relay 1, the push plate 41 can be subjected to different impact forces according to the air inflow amount entering the air inlet pipe of the relay 1, and the push plate 41 vertically descends by a specific distance due to the sliding of the guide rod 45 in the outer cylinder 44, so that the air inlet of a proper number of connecting pipes 3 at the top is opened to a proper degree, the air entering the air inlet pipe of the relay 1 flows into the guide pipe 2 from the connecting pipes 3 for opening the air inlet and flows into the bottom of the relay 1 along the guide pipe 2 beyond the supporting plate and the supporting plate, and then enters the relay 1, and the C-shaped pipe of the relay 1 deforms to enable the pointer of the relay 1 to rotate, so that the pointer points to different positions on the dial;

in the moving process of the guide rod 45, the piston plate 46 synchronously moves downwards for a certain distance, so that redundant gas in the outer cylinder 44 is pushed into the soft pipe 54, and is guided into the bottom of the transparent pipe 51 by the soft pipe 54, so that the air pressure at the bottom of the balancing weight 52 rises, the balancing weight 52 is pushed upwards, the balancing weight 52 moves upwards, an operator can determine the flow amount of the gas in the air inlet pipe of the relay 1 according to the position where the balancing weight 52 and the indicating scale of the transparent pipe 51 coincide, and the operator can determine whether the pointer of the relay 1 deviates or not according to the mutual comparison between the gas flow value in the relay 1 and the position indicated by the pointer of the relay 1;

after the use of the relay 1 is completed, the air inlet pipe of the relay 1 does not enter air any more, the spring 47 resets to push the push plate 41 upwards, the push plate 41 is pushed to reset, the push plate 41 is enabled to block a plurality of connecting pipes 3 again, the piston plate 46 is synchronously driven to reset through the pull rod, a negative pressure state is formed in the outer cylinder 44, air in the transparent pipe 51 is sucked into the outer pipe, the pushing force of the balancing weight 52 is lost, the matching block moves downwards along the transparent pipe 51 to reset, and after the bottom end of the balancing weight 52 contacts with the soft pipe 54, the balancing weight 52 stops sliding downwards due to mutual interference of the balancing weight 52 and the soft pipe 54.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a gas density relay device with flow measurement function, includes relay (1), its characterized in that: the relay is characterized in that a plurality of guide pipes (2) are oppositely arranged on the outer periphery side of the air inlet pipe of the relay (1), openings in the bottom end of each guide pipe (2) are respectively inserted into the air inlet pipe of the relay (1) and fixedly connected with the air inlet pipe of the relay (1), a plurality of connecting pipes (3) are arranged on the outer periphery side of the top of each guide pipe (2) in a communicating mode, the air inlet end of each connecting pipe (3) is inserted into the air inlet pipe of the relay (1) and fixedly connected with the air inlet pipe of the relay (1), a plugging assembly (4) is arranged in the air inlet pipe of the relay (1), the opening of the corresponding connecting pipe (3) is plugged by the plugging assembly (4), and an indicating assembly (5) is arranged on the outer periphery wall of the relay (1).

2. A gas density relay device having a flow rate measurement function according to claim 1, wherein: the plugging assembly (4) comprises a push plate (41), the push plate (41) is slidably arranged in an air inlet pipe of the relay (1), two sealing rings (42) are oppositely arranged on the outer periphery side of the push plate (41), a supporting ring (43) is arranged below the push plate (41), the outer annular wall of the supporting ring (43) is fixedly connected with the air inlet pipe of the relay (1), and an outer cylinder (44) is fixedly arranged in the supporting ring (43) in a penetrating mode.

3. A gas density relay device having a flow rate measurement function according to claim 2, wherein: the indicating assembly (5) comprises a transparent pipe (51), an indicating scale is arranged on the peripheral wall of the transparent pipe (51), the transparent pipe (51) is fixedly arranged on the peripheral wall of an air inlet pipe of the relay (1), the transparent pipe (51) is positioned between two corresponding guide pipes (2), a balancing weight (52) is internally arranged in the transparent pipe (51), a sealing ring (53) is arranged on the peripheral wall of the balancing weight (52), and the inside of the outer cylinder (44) is communicated with the inside of the transparent pipe (51) through a soft pipe (54).

4. A gas density relay device having a flow rate measurement function according to claim 3, wherein: the top of the outer cylinder (44) is provided with a guide rod (45) in a sliding penetrating mode, the top of the guide rod (45) is fixedly connected with the push plate (41), the bottom of the guide rod (45) is fixedly provided with a piston plate (46), and the outer peripheral wall of the piston plate (46) is in contact with the inner wall of the outer cylinder (44).

5. The gas density relay device with a flow rate measurement function according to claim 4, wherein: a spring (47) is arranged between the push plate (41) and the supporting ring (43), and two ends of the spring (47) are fixedly connected with the supporting ring (43) and the push plate (41) respectively.