Intelligent safety valve for gas pipeline

Abstract

The utility model relates to the technical field of pipeline valves, and discloses an intelligent safety valve for a gas pipeline, which comprises a valve body, a channel arranged on the valve body, a gas inlet and a gas outlet respectively arranged at two ends of the channel, a motor valve arranged in the channel and used for controlling on / off of the channel, a valve inlet and a valve outlet, the gas inlet is communicated with the valve inlet, and the gas outlet is communicated with the valve outlet. The air outlet is communicated with the valve outlet, a first air pressure sensor and a second air pressure sensor are arranged on the valve body, the first air pressure sensor is communicated with the valve inlet, and the second air pressure sensor is communicated with the valve outlet. According to the intelligent safety valve for the fuel gas pipeline, when the pressure of fuel gas in a fuel gas channel is in high-level or low-level abnormal pressure, the fuel gas can be automatically cut off, and the intelligent safety valve is more intelligent and good in safety; the size is small, and installation in a narrow space is facilitated; the internal battery is convenient to disassemble and replace, and the use experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline valves, and more specifically, to an intelligent safety valve for gas pipelines. Background Art

[0002] Currently, the existing valve devices used for cutting off gas in gas pipelines usually consist of an electromagnetic valve and a gas alarm. When working, when the gas alarm detects gas leakage, it will send a signal to the electromagnetic valve while sounding an alarm. Once the electromagnetic valve receives the signal sent by the gas alarm, it will start and cut off the gas passage. The above valve device composed of an electromagnetic valve and a gas alarm can cut off the gas passage according to whether gas leakage occurs during operation, but it cannot detect the gas pressure. Moreover, when the gas pressure in the gas passage is at an abnormal high or low pressure, the above valve device cannot automatically cut off the gas, presenting certain potential safety hazards. In addition, some existing gas pipeline valves are relatively large in size and not convenient to install in narrow spaces; their internal batteries are not easy to disassemble and assemble, and battery replacement is troublesome, resulting in a poor user experience. Summary of the Utility Model

[0003] To solve at least one of the above problems, the utility model provides an intelligent safety valve for gas pipelines, including: a valve body, a channel is provided on the valve body, both ends of the channel are respectively provided with an air inlet and an air outlet, a motor valve for controlling the on / off of the channel is arranged in the channel, the motor valve includes a valve inlet and a valve outlet, the air inlet is communicated with the valve inlet, the air outlet is communicated with the valve outlet, a first air pressure sensor and a second air pressure sensor for controlling the action of the motor valve are arranged on the valve body, the first air pressure sensor is communicated with the valve inlet, and the second air pressure sensor is communicated with the valve outlet; for the intelligent safety valve for gas pipelines of the utility model, when the gas pressure in the gas channel is at an abnormal high or low pressure, it can automatically cut off the gas, is more intelligent and has good safety; it is relatively small in size and convenient to install in narrow spaces; the internal battery is easy to disassemble and assemble, battery replacement is convenient, and the user experience is good.

[0004] Optionally, the valve body includes an integrally formed housing and a cover fixedly connected to the housing, the channel is formed between the housing and the cover, and the air inlet and the air outlet are respectively arranged at both ends of the housing.

[0005] Optionally, both the first air pressure sensor and the second air pressure sensor are arranged on the cover.

[0006] Optionally, a first sealing ring is arranged between the housing and the cover.

[0007] Optionally, the channel extends linearly along a first horizontal direction, and the first pressure sensor and the second pressure sensor are distributed along a second horizontal direction. Both the first horizontal direction and the second horizontal direction are parallel to the horizontal plane and perpendicular to each other.

[0008] Optionally, a second sealing ring is provided between the valve inlet and the valve body.

[0009] Optionally, a cover body is fixedly arranged on the valve body. A control board is arranged inside the cover body. The control board is electrically connected to the first pressure sensor and the second pressure sensor. The control board is electrically connected to the motor valve through a wire. A sealing plug is arranged on the valve body. A first wire passing hole for the wire to pass through is arranged on the sealing plug. A second wire passing hole for the wire to pass through is arranged on the valve body.

[0010] Optionally, an installation groove for installing the sealing plug is arranged on the valve body. The second wire passing hole communicates with the installation groove. A pressing block for limiting the sealing plug is fixedly arranged on the valve body. A third wire passing hole for the wire to pass through is arranged on the pressing block. The sealing plug is made of silica gel or rubber.

[0011] Optionally, a detachable battery module is arranged inside the cover body. The motor valve is powered by the battery module. A bracket is arranged inside the cover body. The battery module includes a battery compartment. The battery compartment is slidably installed laterally on the bracket. A first buckle is arranged on the bracket. A second buckle corresponding to the first buckle is arranged on the battery compartment. After the battery compartment slides into the bracket, the first buckle engages with the second buckle. When the battery compartment slides out of the bracket, the first buckle disengages from the second buckle.

[0012] Optionally, a switch button, a self-check button, an open-valve indicator light, a close-valve indicator light, a power quantity indicator light, and an alarm indicator light are electrically connected to the control board.

[0013] Compared with the prior art, for the intelligent safety valve for gas pipelines of the present utility model, when the pressure of the gas in the gas channel is at an abnormal pressure in a high or low position, it can automatically cut off the gas, which is more intelligent and has good safety; it has a small volume and is convenient to install in a narrow space; the internal battery is easy to disassemble and install, and the battery replacement is convenient, providing a good user experience; the cover body is fixed to the upper side of the housing through bolts, the housing is integrally formed, with good sealing performance and not prone to gas leakage, and is safe and reliable to use; a first sealing ring is arranged between the housing and the cover body to prevent gas leakage between the housing and the cover body, ensuring safe use; a detachable battery module is arranged inside the cover body, facilitating the user to replace the battery by themselves. Description of the Drawings

[0014] Figure 1Stereogram of the intelligent safety valve for gas pipeline of the present utility model;

[0015] Figure 2 Exploded view of the intelligent safety valve for gas pipeline of the present utility model;

[0016] Figure 3 Cross-section of the intelligent safety valve for gas pipeline of the present utility model Figure 1 ;

[0017] Figure 4 Structural schematic diagram of the control board part of the intelligent safety valve for gas pipeline of the present utility model;

[0018] Figure 5 is Figure 4 Enlarged view of part A in

[0019] Figure 6 Structural schematic diagram of the motor valve of the intelligent safety valve for gas pipeline of the present utility model;

[0020] Figure 7 Structural schematic diagram of the cover body part of the intelligent safety valve for gas pipeline of the present utility model;

[0021] Figure 8 Structural schematic diagram of the pressing block part of the intelligent safety valve for gas pipeline of the present utility model;

[0022] Figure 9 Cross-section of the intelligent safety valve for gas pipeline of the present utility model Figure 2 ;

[0023] Figure 10 Structural schematic diagram when the battery compartment of the intelligent safety valve for gas pipeline of the present utility model is pulled out;

[0024] The corresponding component names for each reference numeral in the figure are: 1 is the valve body, 11 is the housing, 12 is the cover body, 101 is the channel, 102 is the air inlet, 103 is the air outlet, 104 is the second wire passing hole, 2 is the motor valve, 21 is the valve inlet, 22 is the valve outlet, 23 is the moving valve core, 3 is the first air pressure sensor, 4 is the second air pressure sensor, 51 is the first sealing ring, 52 is the second sealing ring, 6 is the cover body, 61 is the control board, 62 is the sealing plug, 621 is the installation groove, 63 is the first wire passing hole, 64 is the pressing block, 65 is the third wire passing hole, 7 is the bracket, 71 is the battery compartment, 72 is the first buckle, 721 is the first guiding inclined surface, 73 is the second buckle, 731 is the second guiding inclined surface, 74 is the handle, 81 is the switch button, 82 is the self-checking button, 83 is the valve opening indicator light, 84 is the valve closing indicator light, 85 is the power quantity indicator light, 86 is the alarm indicator light. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following provides a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship during the normal use of the product.

[0027] The terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of such features.

[0028] Refer to Figures 1 - 10 , an intelligent safety valve for a gas pipeline provided by an embodiment of the present utility model includes: a valve body 1, a passage 101 is provided on the valve body 1, an air inlet 102 and an air outlet 103 are respectively provided at both ends of the passage 101, the air inlet 102 is used for connecting to gas, and the air outlet 103 is used for discharging gas; a motor valve 2 for controlling the on / off of the passage 101 is provided in the passage 101, the motor valve 2 is placed in the passage 101 and does not occupy the space outside the passage 101 of the valve body 1, with a compact structure and small volume; the motor valve 2 includes a valve inlet 21 and a valve outlet 22, and the motor valve 2 further includes a moving valve core 23 and a motor body, and the moving valve core 23 is driven axially by the motor body to make the valve inlet 21 and the valve outlet 22 conduct / block. The motor valve 2 in this embodiment is a prior art and will not be elaborated here; the air inlet 102 is communicated with the valve inlet 21, and the air outlet 103 is communicated with the valve outlet 22. The on / off of the entire safety valve is controlled by the on / off of the motor valve 2, which is convenient to control; a first air pressure sensor 3 and a second air pressure sensor 4 for controlling the action of the motor valve 2 are provided on the valve body 1. When any one of the first air pressure sensor 3 or the second air pressure sensor 4 detects an excessive (exceeding the preset normal air pressure value) or too small (air pressure lower than the preset normal air pressure value), the first air pressure sensor 3 or the second air pressure sensor 4 transmits an electrical signal to the motor valve 2, causing the motor valve 2 to actuate and close, thereby cutting off the passage 101 and ensuring safety in use; the first air pressure sensor 3 is communicated with the valve inlet 21, facilitating the first air pressure sensor 3 to detect the air pressure of the gas entering the valve inlet 21; the second air pressure sensor 4 is communicated with the valve outlet 22, facilitating the second air pressure sensor 4 to detect the air pressure of the gas discharged from the valve outlet 22. Through the first air pressure sensor 3 and the second air pressure sensor 4, it is ensured that both the input air pressure and the output air pressure are normal air pressures when the safety valve is normally conducting; for the intelligent safety valve of the gas pipeline of the present utility model, when the pressure of the gas in the gas passage is at an abnormal pressure in a high or low position, it can automatically cut off the gas, which is more intelligent and has good safety; the volume is relatively small, facilitating installation in a narrow space; the internal battery is easy to disassemble and assemble, and the battery replacement is convenient, providing a good user experience.

[0029] Refer to Figures 1 - 3 , the valve body 1 includes an integrally formed housing 11 and a cover body 12 fixedly connected to the housing 11. The cover body 12 is fixed to the upper side of the housing 11 by bolts. The housing 11 is integrally formed with good sealing performance and is not prone to gas leakage, ensuring safe and reliable use; the passage 101 is formed between the housing 11 and the cover body 12, the air inlet 102 and the air outlet 103 are respectively arranged at both ends of the housing 11, and the first pressure sensor 3 and the second pressure sensor 4 are both arranged on the cover body 12, with a compact structure and reasonable design; a first sealing ring 51 is arranged between the housing 11 and the cover body 12 to prevent gas leakage between the housing 11 and the cover body 12, ensuring safe use.

[0030] Refer to Figure 1 , Figure 3 and Figure 7 , the passage 101 extends linearly along the first horizontal direction, i.e., the X-axis direction, and the first pressure sensor 3 and the second pressure sensor 4 are distributed along the second horizontal direction, i.e., the Y-axis direction, avoiding excessive occupation of the space in the first horizontal direction, so as to reduce the length of the safety valve in the first horizontal direction; both the first horizontal direction and the second horizontal direction are parallel to the horizontal plane and perpendicular to each other.

[0031] Refer to Figure 2 , Figure 7 and Figure 8 , a second sealing ring 52 is arranged between the valve inlet 21 and the valve body 1 to prevent gas leakage between the valve inlet 21 and the valve body 1, making the use safer and more reliable; a cover body 6 is fixedly arranged on the valve body 1, a control board 61 is arranged inside the cover body 6, the control board 61 is electrically connected to the first pressure sensor 3 and the second pressure sensor 4, the control board 61 is electrically connected to the motor valve 2 through a wire, a sealing plug 62 is arranged on the valve body 1 to prevent gas leakage at the wire passing point, ensuring reliable use; a first wire passing hole 63 for the wire to pass through is arranged on the sealing plug 62, and a second wire passing hole 104 for the wire to pass through is arranged on the valve body 1; an installation groove 621 for installing the sealing plug 62 is arranged on the valve body 1, the sealing plug 62 is stably installed and not prone to displacement, the second wire passing hole 63 communicates with the installation groove 621, a pressing block 64 for limiting the sealing plug 62 is fixedly arranged on the valve body 1, a third wire passing hole 65 for the wire to pass through is arranged on the pressing block 64, and the sealing plug 62 is made of silica gel, rubber or other sealing materials.

[0032] Refer to Figures 1 - 5, a detachable battery module is provided inside the cover body 6. The motor valve 2 is powered by the battery module, and the battery module is electrically connected to the control board 61. A bracket 7 is provided inside the cover body 6. The battery module includes a battery compartment 71. In this embodiment, the battery compartment 71 is a dry battery compartment, which is convenient for users to replace the battery by themselves; the battery compartment 71 is slidably installed on the bracket 7 laterally. One end of the bracket 7 that is drawn out laterally is provided with a handle 74 for easy operation; a first buckle 72 is provided on the side end of the bracket 7, and a second buckle 73 corresponding to the first buckle 72 is provided on the battery compartment 71; after the battery compartment 71 slides into the bracket 7 laterally and is installed in place, the first buckle 72 is engaged with the second buckle 73; when the battery compartment 71 slides out of the bracket 7 for disassembly, the first buckle 72 disengages from the second buckle 73, which is convenient to use; a first guiding inclined surface 721 is provided on the first buckle 72, and a second guiding inclined surface 731 corresponding to the first guiding inclined surface 721 is provided on the second buckle 73. When disassembling the battery compartment 71, only need to draw out the battery compartment 71 laterally with a little force, and the operation is simple.

[0033] Refer to Figure 1 and Figure 2 , the control board 61 is electrically connected with a switch button 81, a self-check button 82, an open-valve indicator light 83, a close-valve indicator light 84, a power indicator light 85 and an alarm indicator light 86; the switch button 81 is used to manually close the motor valve 2 according to the user's needs, that is, to close the passage, which is flexible to use; the self-check button 82 is used to manually self-check this safety valve. During self-check, the motor valve of this safety valve automatically closes and opens once, so that the user can self-check whether the closing and opening functions of the motor valve are intact, which is convenient for maintenance and improves the use safety; when this safety valve is in the open state, the open-valve indicator light 83 is on, and when it is in the closed state, the close-valve indicator light 84 is on, which is convenient for the user to intuitively see the current working state of the safety valve; the power indicator light 85 is used to prompt the user to replace the battery in time when the battery power in the battery compartment is insufficient, so as to avoid sudden power failure affecting normal use; when any one of the first air pressure sensor 3 or the second air pressure sensor 4 detects abnormal air pressure that is too large or too small, the control motor valve closes, and at the same time the alarm indicator light 86 lights up / or turns into an alarm color for alarm, which is convenient for the user to know the abnormality in time for maintenance, and the use experience is good.

[0034] For the intelligent safety valve of the gas pipeline of the present utility model, when the pressure of the gas in the gas passage is at an abnormal pressure of high or low level, it can automatically cut off the gas, with good safety; the volume is small, which is convenient for installation in a narrow space; the internal battery is easy to disassemble and install, and the battery replacement is convenient, with good use experience; the cover body is fixed to the upper side of the shell by bolts, the shell is integrally formed, with good sealing performance and not easy to leak gas, and it is safe and reliable to use; a first sealing ring is provided between the shell and the cover body to avoid gas leakage between the shell and the cover body, and it is safe to use; a detachable battery module is provided inside the cover body, which is convenient for users to replace the battery by themselves.

[0035] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A gas pipeline intelligent safety valve, characterized in that: include: A valve body (1), wherein a channel (101) is arranged on the valve body (1), and an air inlet (102) and an air outlet (103) are respectively arranged at both ends of the channel (101), and a motor valve (2) for controlling the on / off state of the channel (101) is arranged in the channel (101), and the motor valve (2) comprises a valve inlet (21) and a valve outlet (22), and the air inlet (102) is communicated with the valve inlet (21), and the air outlet (103) is communicated with the valve outlet (22), and a first air pressure sensor (3) and a second air pressure sensor (4) for controlling the operation of the motor valve (2) are arranged on the valve body (1), and the first air pressure sensor (3) is communicated with the valve inlet (21), and the second air pressure sensor (4) is communicated with the valve outlet (22).

2. The intelligent safety valve for gas pipeline according to claim 1, characterized in that: The valve body (1) comprises an integrally formed shell (11) and a cover body (12) fixedly connected to the shell (11); the channel (101) is formed between the shell (11) and the cover body (12); and the air inlet (102) and the air outlet (103) are respectively arranged at two ends of the shell (11).

3. The intelligent safety valve for gas pipeline according to claim 2, characterized in that: The first air pressure sensor (3) and the second air pressure sensor (4) are both arranged on the cover body (12).

4. The intelligent safety valve for gas pipeline according to claim 2, characterized in that: A first sealing ring (51) is provided between the shell (11) and the cover (12).

5. The intelligent safety valve for gas pipeline according to claim 1, characterized in that: The channel (101) extends linearly along a first horizontal direction, the first air pressure sensor (3) and the second air pressure sensor (4) are distributed along a second horizontal direction, and the first horizontal direction and the second horizontal direction are both parallel to a horizontal plane and perpendicular to each other.

6. The intelligent safety valve for gas pipeline according to claim 1, characterized in that: A second sealing ring (52) is provided between the valve inlet (21) and the valve body (1).

7. The intelligent safety valve for gas pipeline according to any one of claims 1 to 6, characterized in that: A cover body (6) is fixedly arranged on the valve body (1), a control board (61) is arranged inside the cover body (6), the control board (61) is electrically connected to the first air pressure sensor (3) and the second air pressure sensor (4), the control board (61) is electrically connected to the motor valve (2) through a wire, a sealing plug (62) is arranged on the valve body (1), a first wire passing hole (63) for the wire to pass through is arranged on the sealing plug (62), and a second wire passing hole (104) for the wire to pass through is arranged on the valve body (1).

8. The intelligent safety valve for gas pipeline according to claim 7, characterized in that: The valve body (1) is provided with a mounting groove (621) for mounting the sealing plug (62); the second wire passing hole (104) is communicated with the mounting groove (621); a pressure block (64) for limiting the sealing plug (62) is fixedly provided on the valve body (1); a third wire passing hole (65) for passing the wire is provided on the pressure block (64); and the sealing plug (62) is made of silicone or rubber.

9. The intelligent safety valve for gas pipeline according to claim 7, characterized in that: A detachable battery module is arranged in the cover body (6), and the motor valve (2) is powered by the battery module. A bracket (7) is arranged in the cover body (6), and the battery module includes a battery compartment (71). The battery compartment (71) is laterally slidably mounted on the bracket (7), and a first buckle (72) is arranged on the bracket (7), and a second buckle (73) corresponding to the first buckle (72) is arranged on the battery compartment (71); after the battery compartment (71) slides into the bracket (7), the first buckle (72) is engaged with the second buckle (73); when the battery compartment (71) slides out of the bracket (7), the first buckle (72) is separated from the second buckle (73).

10. The intelligent safety valve for gas pipeline according to claim 7, characterized in that: The control panel (61) is electrically connected to a switch button (81), a self-test button (82), a valve opening indicator light (83), a valve closing indicator light (84), a power indicator light (85) and an alarm indicator light (86).

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