Fuel gas pressure regulating and metering integrated device

Abstract

The utility model relates to a fuel gas pressure regulating and metering integrated device, which belongs to the technical field of fuel gas pressure regulating and metering equipment and comprises an inlet valve, a pressure regulating valve body, a pressure regulating actuator, a metering component, an outlet valve and a control device. One end of the pressure regulating valve body is communicated with the pressure regulating actuator, the other end of the pressure regulating valve body is communicated with one end of the metering assembly, the other end of the metering assembly is communicated with the outlet valve, one side of the pressure regulating valve body is fixedly connected and communicated with the pressure regulating actuator, and the metering assembly is fixedly connected and in communication connection with the control device. The fuel gas pressure regulating and metering device aims at integrating the fuel gas pressure regulating function and the fuel gas metering function.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pressure regulating and metering equipment, in particular to a gas pressure regulating and metering integrated device. Background Art

[0002] With the rapid advancement of "smart gas" urbanization, terminal gas has ushered in an opportunity period for rapid development. The number of pressure regulating boxes in urban residential buildings and commercial gas pressure regulating boxes is increasing. The main function of the original pressure regulating box is to adjust the medium pressure to low pressure and cut it off. The function is relatively simple, only providing the function of regulating and stabilizing the pressure, and cannot measure the gas, which cannot meet the needs of "smart gas" regional users.

[0003] Therefore, a gas pressure regulating and metering integrated device is provided to solve the problems raised in the above background technology. Utility Model Content

[0004] The technical problem solved by the utility model is how to integrate the gas pressure regulation and metering functions into one.

[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a gas pressure regulating and metering integrated device, comprising an inlet valve, a pressure regulating valve body, a pressure regulating actuator, a metering component, an outlet valve and a controller, wherein the inlet valve is connected to one end of the pressure regulating valve body, the other end of the pressure regulating valve body is connected to one end of the metering component, the other end of the metering component is connected to the outlet valve, one side of the pressure regulating valve body is fixedly connected and connected to the pressure regulating actuator, and the metering component is fixedly connected and communicatively connected to the controller.

[0006] The beneficial effect of the utility model is that the gas enters the pressure regulating actuator through the inlet valve and the pressure regulating valve body in turn, and the pressure regulating actuator regulates the medium-pressure gas to low-pressure gas, and then enters the metering component, which measures the gas volume and transmits the gas volume to the controller, and the controller can transmit the metering data to the gas company's operation center. Subsequently, the gas is output from the outlet valve to the household pipeline, which makes it easier for the staff to monitor the gas usage behavior of users in the "smart gas" area, thereby meeting the needs of users in the "smart gas" area.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the metering assembly includes a rectifier, a metering valve body and an ultrasonic probe, the controller is fixed on the metering valve body, one end of the metering valve body is connected to the other end of the pressure regulating valve body, and the other end of the metering valve body is connected to the outlet valve, the rectifier is located in one end of the metering valve body and is fixedly connected to the metering valve body, there are two ultrasonic probes, the two ultrasonic probes are detachably connected to the two sides of the metering valve body, and the ultrasonic probes are communicatively connected to the controller.

[0009] The beneficial effect of adopting the above further scheme is: after the low-pressure gas enters the metering valve body, the pressure of the gas after pressure reduction is first buffered and smoothed by a rectifier to obtain smooth and turbulent gas, and then the ultrasonic signals are alternately emitted by two ultrasonic probes to measure the forward arrival time and reverse arrival time of the ultrasonic signals, and combined with the pipe diameter parameters, the flow rate and flow of the gas in the metering valve body can be calculated, thereby obtaining the data of the gas flow used by the user.

[0010] Furthermore, the two ultrasonic probes are coaxially arranged, and the axes of the two ultrasonic probes are inclined relative to the axis of the metering valve body.

[0011] The beneficial effect of adopting the above further solution is that the tilted ultrasonic probe can improve the sensitivity and accuracy of detection.

[0012] Furthermore, the angle between the axes of the two ultrasonic probes and the axis of the metering valve body is 45°.

[0013] Furthermore, it also includes an overpressure cut-off actuator, and the other side of the pressure regulating valve body is fixedly connected to and communicated with the overpressure cut-off actuator.

[0014] The beneficial effect of adopting the above further solution is that when the gas pressure in the pressure regulating valve body is greater than the set value, the overpressure cut-off actuator can cut off the gas flow to the metering valve body to ensure user safety.

[0015] Furthermore, it also includes a first temperature and pressure sensor, the first temperature and pressure sensor is fixed on the metering valve body, and the first temperature and pressure sensor is communicatively connected with the controller.

[0016] The beneficial effect of adopting the above further solution is that it is convenient to regularly measure the temperature and pressure of the metering valve body to avoid safety accidents of the device.

[0017] Furthermore, it also includes a second temperature and pressure sensor, the second temperature and pressure sensor is fixed on the pressure regulating valve body, and the second temperature and pressure sensor is communicatively connected with the controller.

[0018] The beneficial effect of adopting the above further solution is: it is convenient to regularly measure the temperature and pressure of the pressure regulating valve body to avoid safety accidents of the device.

[0019] Furthermore, it also includes a gas leakage sensor, the pressure regulating actuator is fixedly connected to the gas leakage sensor, and the gas leakage sensor is communicatively connected to the controller.

[0020] The beneficial effect of adopting the above further solution is that the gas leakage sensor is used to detect whether there is a gas leakage in the pressure regulating actuator, thereby ensuring the safety of users' lives.

[0021] Furthermore, the metering component also includes a display screen, the display screen is fixed on the controller 10, and the display screen is communicatively connected with the controller.

[0022] The beneficial effect of adopting the above further solution is that the display screen can be used to display the flow data in the metering valve body and the temperature and pressure values ​​of the pressure regulating valve body and the metering valve body, which is convenient for on-site monitoring by staff.

[0023] Furthermore, it also includes a pressure measuring and venting valve, and the pressure measuring and venting valve is fixed on the metering valve body.

[0024] The beneficial effect of adopting the above further scheme is that when the staff needs to inspect the metering valve body, they can first close the inlet valve, then close the outlet valve, and finally open the pressure measuring vent valve to vent the gas in the metering valve body to avoid maintenance accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the integrated pressure regulating and metering device of the utility model;

[0026] Figure 2 This is the front view of the integrated pressure regulating and metering device of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the metering component of the utility model;

[0028] Figure 4 for Figure 3 Middle section AA section view;

[0029] Figure 5 for Figure 3 Exploded view of the mid-section AA structure;

[0030] Figure 6 It is a left view of the metering component of the utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Inlet valve; 2. Pressure regulating valve body; 3. Pressure regulating actuator; 4. Metering component; 401. Rectifier; 402. Metering valve body; 403. Ultrasonic probe; 404. Display screen; 5. Outlet valve; 6. Pressure measuring and venting valve; 7. First temperature and pressure sensor; 8. Second temperature and pressure sensor; 9. Overpressure cut-off actuator; 10. Controller. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1-Figure 6 As shown, this embodiment provides an integrated gas pressure regulating and metering device, including an inlet valve 1, a pressure regulating valve body 2, a pressure regulating actuator 3, a metering component 4, an outlet valve 5 and a controller 10, the inlet valve 1 is connected to one end of the pressure regulating valve body 2, the other end of the pressure regulating valve body 2 is connected to one end of the metering component 4, the other end of the metering component 4 is connected to the outlet valve 5, one side of the pressure regulating valve body 2 is fixedly connected and connected to the pressure regulating actuator 3, and the metering component 4 is fixedly connected and communicatively connected to the controller 10.

[0035] The gas enters the pressure regulating actuator 3 through the inlet valve 1 and the pressure regulating valve body 2 in turn. After the pressure regulating actuator 3 regulates the medium-pressure gas to low-pressure gas, it enters the metering component 4. The metering component 4 measures the gas volume and transmits the gas volume to the controller 10. The controller 10 can transmit the metering data to the gas company's operation center. Subsequently, the gas is output from the outlet valve 5 to the household pipeline, which makes it easier for the staff to monitor the gas usage behavior of users in the "smart gas" area, thereby meeting the needs of users in the "smart gas" area.

[0036] Specifically, the pressure regulating actuator 3 can regulate the medium-pressure gas to low-pressure gas. The pressure regulating actuator 3 can also be a gas pressure regulator.

[0037] The pressure regulating valve body 2 is similar to a gas pipeline, which facilitates the passage of gas.

[0038] Specifically, the inlet valve 1 may be a ball valve, and the outlet valve 5 may be a ball valve.

[0039] On the basis of the above scheme, the metering component 4 includes a rectifier 401, a metering valve body 402 and an ultrasonic probe 403, the controller 10 is fixed on the metering valve body 402, one end of the metering valve body 402 is connected to the other end of the pressure regulating valve body 2, and the other end of the metering valve body 402 is connected to the outlet valve 5, the rectifier 401 is located in one end of the metering valve body 402 and is fixedly connected to the metering valve body 402, there are two ultrasonic probes 403, the two ultrasonic probes 403 are detachably connected to the two sides of the metering valve body 402, and the ultrasonic probes 403 are communicatively connected to the controller 10.

[0040] After the low-pressure gas enters the metering valve body 402, the pressure of the reduced-pressure gas is first buffered and smoothed by the rectifier 401 to obtain smooth and turbulent-free gas. Then, the two ultrasonic probes 403 emit ultrasonic signals alternately, and the forward arrival time and reverse arrival time of the ultrasonic signals are measured. Combined with the pipe diameter parameters, the flow rate and flow of the gas in the metering valve body 402 can be calculated, and the data on the gas flow used by the user can be obtained.

[0041] Specifically, the two ultrasonic probes 403 can transmit the gas flow data in the metering valve body 402 to the gas company operation center through the controller 10, so as to monitor the user's gas use behavior or pipeline status in real time.

[0042] Specifically, the measurement principle of the ultrasonic flow meter is based on the speed difference between the sound wave and the fluid to determine the flow rate of the fluid. The ultrasonic probe measures the gas flow rate by measuring the time difference when the gas is transmitted in the pipeline. When the gas flows through the pipeline, the ultrasonic sensor sends the ultrasonic signal to the inner cavity of the pipeline, which is then reflected back by the inner wall of the pipeline and finally received by the receiver. According to the time difference between the sent signal and the received signal, the flow rate and flow of the gas can be calculated, which uses the principle that the propagation speed of the ultrasonic wave in the flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the stationary medium.

[0043] Specifically, the staff can settle the gas supply fees for users based on the gas flow data of users.

[0044] Among them, the metering data includes the real-time flow of gas under standard conditions and the cumulative flow under standard conditions, which monitor the gas usage behavior of users in the "smart gas" area in real time.

[0045] Specifically, one end of the metering valve body 402 is connected and communicated with the other end of the pressure regulating valve body 2 through a flange.

[0046] Specifically, both sides of the metering valve body 402 have protrusions, and both protrusions have through holes. The two protrusions correspond to two ultrasonic probes 403 one by one. The two ultrasonic probes 403 pass through the through holes one by one and are fixedly connected to the metering valve body 402 with bolts.

[0047] When the metering valve body 402 does not need to measure the gas flow, the two ultrasonic probes 403 can be removed and the two through holes can be covered with a cover plate, so that only the gas pressure is regulated.

[0048] Specifically, the rectifier 401 is located inside one end of the metering valve body 402 and is fixedly connected to the metering valve body 402 by bolts.

[0049] On the basis of the above solution, the two ultrasonic probes 403 are coaxially arranged, and the axes of the two ultrasonic probes 403 are inclined relative to the axis of the metering valve body 402 .

[0050] The tilted ultrasonic probe 403 can improve the sensitivity and accuracy of detection.

[0051] Specifically, the two ultrasonic probes 403 are arranged coaxially and tilted.

[0052] Among them, the ultrasonic probe 403 occupies a small volume, has high measurement accuracy and is not prone to aging, which can increase the service life of the device.

[0053] Specifically, the angle between one of the ultrasonic probes 403 and the horizontal positive direction is an acute angle, and the angle between the other ultrasonic probe 403 and the horizontal negative direction is an acute angle.

[0054] Based on the above solution, the angle between the axes of the two ultrasonic probes 403 and the axis of the metering valve body 402 is 45°.

[0055] Specifically, the angle between one of the ultrasonic probes 403 and the horizontal positive direction is 45°, and the angle between the other ultrasonic probe 403 and the horizontal negative direction is 45°.

[0056] Among them, the ultrasonic signal usually operates in the frequency range of 100KHz-500KHz.

[0057] On the basis of the above solution, an overpressure cut-off actuator 9 is further included, and the other side of the pressure regulating valve body 2 is fixedly connected to and communicated with the overpressure cut-off actuator 9 .

[0058] When the gas pressure in the pressure regulating valve body 2 is greater than the set value, the overpressure cut-off actuator 9 can cut off the gas flow to the metering valve body 402 to ensure user safety.

[0059] Specifically, a cut-off set pressure value may be set in the pressure regulating actuator 3. When the gas pressure in the pressure regulating valve body 2 is greater than the cut-off set pressure value, the overpressure cut-off actuator 9 may cut off the inlet gas.

[0060] On the basis of the above solution, a first temperature and pressure sensor 7 is further included. The first temperature and pressure sensor 7 is fixed on the metering valve body 402 , and the first temperature and pressure sensor 7 is communicatively connected with the controller 10 .

[0061] It is convenient to regularly measure the temperature and pressure of the metering valve body 402 to avoid safety accidents of the device.

[0062] Specifically, when the first temperature and pressure sensor 7 detects that the temperature or pressure of the metering valve body 402 is higher than the set value, the signal is transmitted to the controller 10, and the controller 10 promptly transmits the signal to the gas company operation center to ensure gas supply safety.

[0063] Among them, real-time monitoring of the temperature and pressure of the metering valve body 402 can improve the accuracy of the measurement of the ultrasonic probe 403.

[0064] On the basis of the above solution, a second temperature and pressure sensor 8 is further included. The second temperature and pressure sensor 8 is fixed on the pressure regulating valve body 2 , and the second temperature and pressure sensor 8 is communicatively connected with the controller 10 .

[0065] It is convenient to regularly measure the temperature and pressure of the pressure regulating valve body 2 to avoid safety accidents of the device.

[0066] Specifically, when the second temperature and pressure sensor 8 detects that the temperature of the pressure regulating valve body 2 is higher than the set value, it will transmit a signal to the controller 10, and the controller 10 will promptly transmit the signal to the gas company operation center to ensure gas supply safety.

[0067] Specifically, when the second temperature and pressure sensor 8 detects that the pressure of the pressure regulating valve body 2 is higher than the set value, the overpressure cut-off actuator 9 can cut off the gas flow to the metering valve body 402 to ensure the safety of gas supply.

[0068] On the basis of the above solution, a gas leakage sensor is further included. The pressure regulating actuator 3 is fixedly connected to the gas leakage sensor, and the gas leakage sensor is communicatively connected to the controller 10 .

[0069] The gas leakage sensor is used to detect whether there is gas leakage in the pressure regulating actuator 3 to ensure the safety of users.

[0070] Specifically, the gas leakage sensor is fixed to the inner wall of the pressure regulating actuator 3. Since the gas contains methane, by collecting the methane concentration in the air at the top of the pressure regulating actuator 3, it is possible to detect whether there is a gas leak, thereby ensuring the safety of gas supply.

[0071] When the gas leakage sensor detects a gas leakage, the signal is transmitted to the controller 10, and the controller 10 transmits the signal remotely to the gas company operation center in a timely manner.

[0072] On the basis of the above solution, the metering component 4 further includes a display screen 404 , the display screen 404 is fixed on the controller 10 , and the display screen 404 is communicatively connected with the controller 10 .

[0073] The display screen 404 can be used to display the flow data in the metering valve body 402 and the temperature and pressure values ​​of the pressure regulating valve body 2 and the metering valve body 402, so as to facilitate on-site monitoring by the staff.

[0074] Specifically, the display screen 404 may be a liquid crystal display screen, which can facilitate the staff to check the gas metering data in time on site.

[0075] One end of the controller 10 is fixedly connected to the metering valve body 402 , and the other end of the controller 10 is fixedly connected to the display screen 404 .

[0076] On the basis of the above solution, it further comprises a pressure measuring and venting valve 6 , and the pressure measuring and venting valve 6 is fixed on the metering valve body 402 .

[0077] When the staff needs to inspect the metering valve body 402, they can first close the inlet valve 1, then close the outlet valve 5, and finally open the pressure measuring vent valve 6 to vent the gas in the metering valve body 402 to avoid maintenance accidents.

[0078] In this implementation case, when in use, first, the gas enters the pressure regulating valve body 2 through the inlet valve 1, and the medium-pressure gas is adjusted to low-pressure gas through the pressure regulating actuator 3; secondly, the low-pressure gas flows to the metering valve body 402 through the rectifier 401, and the two ultrasonic probes 403 measure the gas in the metering valve body 402, and the controller 10 transmits the metering data to the gas company operation center; finally, the gas is output to the household pipeline through the outlet valve 5, thereby completing the monitoring of the gas usage behavior of users in the "smart gas" area.

[0079] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0084] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A gas pressure regulating and metering integrated device, characterized in that: The invention comprises an inlet valve (1), a pressure regulating valve body (2), a pressure regulating actuator (3), a metering component (4), an outlet valve (5) and a controller (10), wherein the inlet valve (1) is connected to one end of the pressure regulating valve body (2), the other end of the pressure regulating valve body (2) is connected to one end of the metering component (4), the other end of the metering component (4) is connected to the outlet valve (5), one side of the pressure regulating valve body (2) is fixedly connected and connected to the pressure regulating actuator (3), and the metering component (4) is fixedly connected and communicatively connected to the controller (10).

2. A gas pressure regulating and metering integrated device according to claim 1, characterized in that: The metering assembly (4) comprises a rectifier (401), a metering valve body (402) and an ultrasonic probe (403); the controller (10) is fixed on the metering valve body (402); one end of the metering valve body (402) is communicated with the other end of the pressure regulating valve body (2); the other end of the metering valve body (402) is communicated with the outlet valve (5); the rectifier (401) is located inside one end of the metering valve body (402) and is fixedly connected to the metering valve body (402); there are two ultrasonic probes (403), the two ultrasonic probes (403) are detachably connected to two sides of the metering valve body (402), and the ultrasonic probes (403) are communicatively connected to the controller (10).

3. A gas pressure regulating and metering integrated device according to claim 2, characterized in that: The two ultrasonic probes (403) are coaxially arranged, and the axes of the two ultrasonic probes (403) are inclined relative to the axis of the metering valve body (402).

4. A gas pressure regulating and metering integrated device according to claim 3, characterized in that: The angle between the axes of the two ultrasonic probes (403) and the axis of the metering valve body (402) is 45°.

5. A gas pressure regulating and metering integrated device according to claim 1, characterized in that: It also comprises an overpressure cut-off actuator (9), and the other side of the pressure regulating valve body (2) is fixedly connected to and communicated with the overpressure cut-off actuator (9).

6. A gas pressure regulating and metering integrated device according to claim 2, characterized in that: It also includes a first temperature and pressure sensor (7). The first temperature and pressure sensor (7) is fixed on the metering valve body (402), and the first temperature and pressure sensor (7) is communicatively connected to the controller (10).

7. A gas pressure regulating and metering integrated device according to claim 2, characterized in that: It also comprises a second temperature and pressure sensor (8), the second temperature and pressure sensor (8) being fixed on the pressure regulating valve body (2), and the second temperature and pressure sensor (8) being communicatively connected with the controller (10).

8. The integrated gas pressure regulating and metering device according to claim 1, characterized in that: It also includes a gas leakage sensor, the pressure regulating actuator (3) is fixedly connected to the gas leakage sensor, and the gas leakage sensor is communicatively connected to the controller (10).

9. A gas pressure regulating and metering integrated device according to claim 2, characterized in that: The metering component (4) further comprises a display screen (404), the display screen (404) is fixed on the controller (10), and the display screen (404) is communicatively connected to the controller (10).

10. A gas pressure regulating and metering integrated device according to claim 2, characterized in that: It also comprises a pressure measuring and venting valve (6), and the pressure measuring and venting valve (6) is fixed on the metering valve body (402).

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