Integrated fuel gas measuring and calculating device

Abstract

The utility model discloses an integrated fuel gas measuring and calculating device which comprises a cabinet body assembly, and a gas flowmeter, a calorific value integrating instrument and a flow control meter A which are arranged in the cabinet body assembly, and the gas flowmeter is provided with an inlet end and an outlet end which are connected with a gas inlet flange joint and a gas outlet flange joint; the gas flowmeter is provided with a volume correction instrument, a display control assembly is arranged on the cabinet assembly, and the volume correction instrument and the calorific value integrating instrument are in communication connection with the display control assembly; a calorific value collecting pipeline, a standard gas identifying pipeline and a real gas collecting pipeline are arranged in the cabinet assembly, and the cabinet assembly is provided with a calorific value collecting and diffusing port, a standard gas inlet and a real gas collecting port which are respectively connected with the calorific value collecting pipeline, the standard gas identifying pipeline and the real gas collecting pipeline. The volume and the calorific value can be metered at the same time, a user can check the calorific value and the volume of fuel gas mutually, the two metering requirements are met, on the one hand, multiple functions of real gas collection, standard gas identification and real gas analysis are achieved, the gas meter can be used in multiple use scenes, the overall structure is compact, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas metering, and in particular to an integrated gas measuring and calculating device. Background Art

[0002] With the continuous growth of my country's natural gas consumption and the unification of natural gas pipelines, the sources of natural gas have become diversified. Natural gas from different regions, including coalbed methane, shale gas, etc., will all enter the natural gas pipeline in the future. Due to the inconsistency of measurement units for different gas sources and the different energy generated by different components of natural gas, traditional volume measurement is relatively unreasonable, which can easily cause conflicts and lead to the inability to implement normal transactions.

[0003] Compared to volumetric measurement, energy metering can better reflect the true value of natural gas as a fuel and provide users with more stable products and services. Furthermore, energy metering is also an effective means of reducing the gap between natural gas supply and sales. Prior art has proposed related equipment and technologies for energy metering, such as patent number "CN112414592 A," titled "A Gas Energy Metering Flowmeter," and patent number "CN211786720U," titled "An Energy Integration Module for a Natural Gas Energy Metering Device." The applicant's research found that similar devices currently available on the market have limited functionality and are difficult to adapt to diverse installation and use locations. Utility Model Content

[0004] In view of this, the utility model provides an integrated gas measuring device, which aims to solve the problem that current energy metering related equipment has a single function and a narrow scope of application.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] An integrated gas measurement device, the key of which is: including a cabinet assembly, and a gas flow meter, a calorific value integrator and a flow controller A arranged in the cabinet assembly, the cabinet assembly being provided with an inlet flange joint and an outlet flange joint connected to the inlet and outlet ends of the gas flow meter;

[0007] The gas flow meter has a volume corrector, and the cabinet assembly is provided with a display and control assembly. The volume corrector and calorific value integrator are both communicatively connected to the display and control assembly.

[0008] The cabinet assembly has a calorific value collection pipeline, a standard gas identification pipeline and a real gas collection pipeline. The cabinet assembly has a calorific value collection release port, a standard gas inlet and a real gas collection port respectively connected to the calorific value collection pipeline, the standard gas identification pipeline and the real gas collection pipeline.

[0009] By adopting the above scheme, data can be processed, stored and displayed through the display and control assembly, realizing simultaneous measurement of volume and calorific value. Users can check the calorific value and volume of gas at the same time, meeting the needs of both measurements. On the other hand, it meets the needs of multiple functional applications such as real gas collection, standard gas identification and real gas analysis, thereby improving the practicality of the device.

[0010] Preferably, the cabinet assembly includes a base and a cabinet detachably supported on the base, wherein the base has an upwardly extending connecting portion, the distance between the connecting portion and the outer edge of the base being adapted to the thickness of the cabinet, and the connecting portion has connecting holes corresponding to the cabinets. The above solution facilitates quick installation of the cabinet and the base, improving assembly and disassembly of the cabinet assembly.

[0011] Preferably, the gas outlet flange joint is connected to a solid gas outlet pipe, and the solid gas outlet pipe is provided with a switch valve A, a pressure regulating valve, a tee A and a tee B in sequence in a direction away from the gas outlet flange joint, and a switch valve D is provided between the tee A and the tee B;

[0012] The tee A has a first branch pipe, which is connected to the gas collection port and is provided with a switch valve B;

[0013] The tee B has a second branch and a third branch, wherein the second branch is connected to the standard gas inlet and a switch valve C is provided on the second branch;

[0014] The end of the third branch pipe is connected to the inlet of flow controller A, the outlet of flow controller A is connected to the inlet of the calorific value integrator, and the outlet of the calorific value integrator is connected to the calorific value collection and release port. With this solution, the calorific value collection pipeline, the standard gas identification pipeline, and the actual gas collection pipeline cross and share some common branches. These branches are switched using a tee and an on-off valve to achieve functional switching, which helps reduce pipeline complexity and costs.

[0015] As a preferred embodiment, the outlet of the calorific value integrator is connected to a flow controller B, and the outlet end of the flow controller B is connected to the calorific value collection and release port. With the above solution, the flow of the calorific value meter can be better controlled.

[0016] Preferably, the cabinet assembly includes a mounting plate to which the calorific value integrator, flow controller A, calorific value collection pipeline, standard gas identification pipeline, and actual gas collection pipeline are all secured. This solution allows for modular installation of the internal structure, improving the ease of assembly and disassembly of the entire device.

[0017] Preferably, the mounting plate is connected to the cabinet assembly in a detachable manner.

[0018] Preferably, a rechargeable battery box and an explosion-proof power switch are provided within the cabinet assembly. This solution improves device safety and allows the device to be powered directly by mains electricity. Even in the event of a power outage, the rechargeable battery box allows for continued operation, preventing immediate downtime.

[0019] As a preferred embodiment, a filter is provided on the gas outlet pipe between the switch valve A and the pressure regulating valve. The above solution is beneficial to reduce the damage of the gas to the flow controller and the calorific value integrator, thereby extending their service life.

[0020] As a preferred embodiment, both the flow control meter A and the flow control meter B are float flow meters. With the above solution, the display is more intuitive, the adjustment is convenient, and the cost is relatively low.

[0021] As a preferred embodiment, the switch valve A, switch valve B, switch valve C and switch valve D are all solenoid valves. The above solution facilitates the realization of automatic control and improves its operability and practicality.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] The integrated gas measuring device provided by the utility model can realize the simultaneous measurement of volume and calorific value. The user can check the calorific value and volume of the gas to meet the two measurement needs. On the other hand, it has multiple functions of real gas collection, standard gas identification and real gas analysis, and can be used in various usage scenarios. The overall structure is compact and easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the cabinet and base installation structure;

[0026] Figure 3 Schematic diagram of the base structure;

[0027] Figure 4 Schematic diagram of the internal structure of the cabinet;

[0028] Figure 5 This is a schematic diagram of the installation layout of the calorific value collection pipeline, standard gas identification pipeline and actual gas collection pipeline;

[0029] Figure 6 for Figure 5 Front view (without base);

[0030] Figure 7 This is a schematic diagram of the calorific value collection pipeline operation;

[0031] Figure 8 This is a schematic diagram of the standard gas identification pipeline operation;

[0032] Figure 9 This is a schematic diagram of the actual gas collection pipeline operation;

[0033] Figure 10 This is the axonometric drawing of the internal structure of the cabinet assembly. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0035] refer to Figures 1 to 10 The integrated gas measuring device shown mainly includes a cabinet assembly 100, and a gas flow meter 800, a calorific value integrator 300 and a flow controller A400 arranged in the cabinet assembly 100. The cabinet assembly 100 is provided with an inlet flange joint 110 and an outlet flange joint 120 connected to the inlet and outlet ends of the gas flow meter 800.

[0036] The gas flowmeter 800 has a volume corrector 810. The cabinet assembly 100 is provided with a display and control assembly 900. The volume corrector 810 and the calorific value integrator 300 are both communicatively connected to the display and control assembly 900. The cabinet assembly 100 contains a calorific value collection pipeline, a standard gas identification pipeline, and a real gas collection pipeline. The cabinet assembly 100 has a calorific value collection and discharge port 130, a standard gas inlet 140, and a real gas collection port 150, which are respectively connected to the calorific value collection pipeline, the standard gas identification pipeline, and the real gas collection pipeline. In this application, the calorific value collection and discharge port 130, the standard gas inlet 140, and the real gas collection port 150 all have a partition sleeve structure, which facilitates quick disassembly and assembly.

[0037] As shown in the figure, the cabinet assembly 100 mainly includes a base 160 and a cabinet 170 supported on the base 160 in a detachable manner. The base 160 has a connecting portion 161 extending upward. The distance between the connecting portion 161 and the outer edge of the base 160 is adapted to the thickness of the cabinet 170. The connecting portion 161 has connecting holes 162 arranged in a one-to-one correspondence with the cabinet 170. A through hole is formed between the lower end of the cabinet 170 and the connecting portion 161. The through hole allows the ends of the air inlet flange joint 110 and the air outlet flange joint 120 to be exposed. The front side of the cabinet 170 has a front panel 180 installed in a detachable manner.

[0038] In this embodiment, a real gas outlet pipe 200 is connected to the gas outlet flange joint 120. The real gas outlet pipe 200 is connected to the gas outlet flange joint 120 and is located downstream of the gas flow meter 200. It can reduce interference with the gas flow meter 200 and ensure the measurement accuracy of the gas flow meter 200.

[0039] On the gas outlet pipe 200 , an on-off valve A210 , a pressure regulating valve 220 , a tee A230 and a tee B240 are sequentially provided in a direction away from the gas outlet flange joint 120 , and an on-off valve D233 is provided between the tee A230 and the tee B240 .

[0040] The tee A230 has a first branch pipe 231 , which is connected to the solid gas collection port 150 , and a switch valve B232 is provided on the first branch pipe 231 .

[0041] The tee B240 has a second branch pipe 241 and a third branch pipe 242, wherein the second branch pipe 241 is connected to the standard gas inlet 140, and the second branch pipe 241 is provided with a switch valve C243, the end of the third branch pipe 242 is connected to the inlet of the flow control meter A400, the outlet of the flow control meter A400 is connected to the inlet of the calorific value integrator 300, and the outlet of the calorific value integrator 300 is connected to the calorific value collection and release port 130.

[0042] In order to better control the inlet and outlet flow of the calorific value integrator 300, a flow control meter B500 is connected to the outlet end of the calorific value integrator 300. The inlet end of the flow control meter B500 is connected to the outlet end of the calorific value integrator 300, and its outlet end is connected to the calorific value collection and release port 130.

[0043] The cabinet assembly 100 has a mounting plate 600. During specific implementation, the mounting plate 600 is connected to the cabinet assembly 100 in a detachable manner. As shown in the figure, the mounting plate 600 has a hanging hole 610, and the back panel of the cabinet 170 has a boss 171 adapted to the hanging hole 610. The calorific value integrator 300, the flow control meter A400, the calorific value collection pipeline, the standard gas identification pipeline and the actual gas collection pipeline are all fixed on the mounting plate 600.

[0044] In order to cooperate with the modular disassembly and assembly of the mounting plate 600, a switch valve E121 is provided on the gas outlet flange joint 120. In this way, during the later disassembly and assembly, it is only necessary to close the switch valve E121 and connect the gas outlet pipe 200 to the outlet end of the switch valve E121. After the installation is completed, open the switch valve E121.

[0045] In this embodiment, the calorific value integrator 300 is preferably a CVM400 natural gas calorimeter provided by Azbil Corporation. It uses an external power supply, so a rechargeable battery compartment 700 and an explosion-proof power switch 710 are provided within the cabinet assembly 100. The explosion-proof power switch 710 is primarily used to enhance electrical safety. The structures of the gas flowmeter 800 and volume corrector 810 can be referenced in patent number CN115979390A, entitled "Gas Flowmeter Intelligent Volume Corrector and Control System."

[0046] In addition, a filter 250 is provided on the gas outlet pipe 200 between the on-off valve A210 and the pressure regulating valve 220 .

[0047] In order to further improve the operability of the device while reducing costs, the flow control meter A400 and the flow control meter B500 are both float flow meters, and the switch valve A210, switch valve B232, switch valve C243 and switch valve D233 are all solenoid valves or ferrule ball valves, and the switch valve D233 is an overpressure protection valve, which is opened and closed by setting the protection pressure.

[0048] use Figures 1 to 10 The integrated gas measuring device shown in the figure, when implemented, the display and control assembly 900 mainly includes a main control module 910 and a touch screen 920. The front panel 180 has a window for exposing the touch screen 920. The volume corrector 810 and the calorific value integrator 300 are both communicatively connected to the display and control assembly 900, that is, the main control module 910 can collect data from the volume corrector 810 and the calorific value integrator 300, and measure and store them, and then display them through the touch screen 920. In addition, the automatic opening and closing control of each valve, as well as various information display and settings, can be performed through operations on the touch screen 920.

[0049] The battery in the rechargeable battery box 700 is electrically connected to the main control module 910, and the main control module 910 provides power to the touch screen 920, calorific value integrator 300 and volume corrector 810 to ensure that the three can continue to work, ensure the reporting frequency, and avoid power outages and downtime.

[0050] Refer to the operation diagram of the calorific value collection pipeline for details. Figure 7 , real-time gas is collected from the gas pipeline, the switch valve E121, the switch valve A210, and the switch valve D233 are all in the open state, and the other switch valves are in the closed state. After the real gas is filtered by the filter 250, the pressure is adjusted to the operating pressure of the calorific value integrator 300 by the pressure regulating valve 220, and then passes through the tee A230 and the tee B240, and the flow is adjusted to the normal operating flow of the calorific value integrator 300 by the flow controller A400. The calorific value integrator 300 calculates the calorific value of the gas based on the thermal conductivity of the gas mixture and transmits the calorific value data to the volume corrector 810. The volume corrector 810 displays the current calorific value of the gas and displays it synchronously on the display screen. The gas analyzed by the calorific value integrator 300 then passes through the flow controller B500 to display the discharged gas flow, and is finally discharged into the atmosphere through the calorific value collection and release port 130.

[0051] Reference gas identification pipeline operation diagram Figure 8, open the valve switch valve D233 on the pipeline, close the other valves, inject the bottled standard gas through the standard gas inlet 140, and the standard gas passes through the second branch pipe 241 and the flow controller A400 in turn. The standard gas enters the calorific value integrator 300 at the normal use flow rate. The calorific value integrator 300 calculates the calorific value of the gas according to the thermal conductivity of the gas mixture, and transmits the calorific value data to the volume corrector 810. The current calorific value of the gas is displayed on the volume corrector 810 or on the display screen. The gas analyzed by the calorific value integrator 300 passes through the flow controller B500 to display the discharged gas flow, and is discharged into the atmosphere through the calorific value collection and release port 130. In this way, the calorific value of the standard gas can be compared with the calorific value integrator.

[0052] Refer to the actual gas collection pipeline operation diagram Figure 9 At pipeline gas collection port 150, pipeline gas is collected for other measurements or experimental needs. Both on-off valves E121 and A210 are open. Pipeline gas passes through filter 250 to filter impurities. Pressure regulating valve 220 adjusts the pressure to the specified pressure for gas collection. The gas then passes through tee A230 and flows to on-off valves D233 and B232. When the pressure does not exceed the set pressure of on-off valve D233, on-off valve D233 is deactivated, providing pipeline overpressure protection. On-off valve B232 opens, allowing pipeline gas to enter the designated container through pipeline gas collection port 140. After gas collection is complete, on-off valve B232 is closed.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. An integrated gas measurement device, characterized by: The invention comprises a cabinet assembly (100), and a gas flow meter (800), a calorific value integrator (300), and a flow controller A (400) arranged in the cabinet assembly (100); the cabinet assembly (100) is provided with an inlet flange joint (110) and an outlet flange joint (120) connected to the inlet and outlet ends of the gas flow meter (800); The gas flow meter (800) has a volume corrector (810), the cabinet assembly (100) is provided with a display and control assembly (900), and the volume corrector (810) and the calorific value integrator (300) are both communicatively connected to the display and control assembly (900); The cabinet assembly (100) has a calorific value collection pipeline, a standard gas identification pipeline, and a real gas collection pipeline. The cabinet assembly (100) has a calorific value collection and release port (130), a standard gas inlet (140), and a real gas collection port (150) respectively connected to the calorific value collection pipeline, the standard gas identification pipeline, and the real gas collection pipeline.

2. The integrated gas measurement device according to claim 1, characterized in that: The cabinet assembly (100) comprises a base (160) and a cabinet (170) detachably supported on the base (160); the base (160) has a connecting portion (161) extending upward; the distance between the connecting portion (161) and the outer edge of the base (160) is adapted to the thickness of the cabinet (170); and the connecting portion (161) has connecting holes (162) arranged in a one-to-one correspondence with the cabinet (170).

3. The integrated gas measurement device according to claim 1 or 2, characterized in that: The gas outlet flange joint (120) is connected to a solid gas outlet pipe (200), and the solid gas outlet pipe (200) is provided with an on-off valve A (210), a pressure regulating valve (220), a tee A (230), and a tee B (240) in sequence in a direction away from the gas outlet flange joint (120), and an on-off valve D (233) is provided between the tee A (230) and the tee B (240); The three-way connection A (230) has a first branch pipe (231), the first branch pipe (231) is connected to the gas collection port (150), and a switch valve B (232) is provided on the first branch pipe (231); The three-way pipe B (240) has a second branch pipe (241) and a third branch pipe (242), wherein the second branch pipe (241) is connected to the standard gas inlet (140), and a switch valve C (243) is provided on the second branch pipe (241); The end of the third branch pipe (242) is connected to the inlet of the flow control meter A (400), the outlet of the flow control meter A (400) is connected to the inlet of the calorific value integrator (300), and the outlet of the calorific value integrator (300) is connected to the calorific value collection and release port (130).

4. The integrated gas measurement device according to claim 3, characterized in that: The outlet of the calorific value integrator (300) is connected to a flow controller B (500), and the outlet end of the flow controller B (500) is connected to a calorific value collection and release port (130).

5. The integrated gas measurement device according to claim 1 or 2, characterized in that: The cabinet assembly (100) has a mounting plate (600) therein, and the calorific value integrator (300), flow controller A (400), calorific value collection pipeline, standard gas identification pipeline and actual gas collection pipeline are all fixed on the mounting plate (600).

6. The integrated gas measurement device according to claim 5, characterized in that: The mounting plate (600) is detachably connected to the cabinet assembly (100).

7. The integrated gas measurement device according to claim 1 or 2, characterized in that: A rechargeable battery box (700) and an explosion-proof power switch (710) are provided in the cabinet assembly (100).

8. The integrated gas measurement device according to claim 3, characterized in that: A filter (250) is provided on the solid gas outlet pipe (200) between the switch valve A (210) and the pressure regulating valve (220).

9. The integrated gas measurement device according to claim 3, characterized in that: The flow control meter A (400) and the flow control meter B (500) are both float flow meters.

10. The integrated gas measurement device according to claim 3, characterized in that: The switch valve A (210), the switch valve B (232), the switch valve C (243) and the switch valve D (233) are all solenoid valves or sleeve ball valves.

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