Fuel gas metering and pressure regulating equipment and measurement and control system

Abstract

The invention relates to the technical field of fuel gas metering and pressure regulating equipment, in particular to fuel gas metering and pressure regulating equipment and a measurement and control system. The fuel gas metering and pressure regulating equipment comprises a box body, a pressure regulating metering pipe, a fuel gas inlet pipe, a fuel gas outlet pipe and a heat dissipation mechanism, and the heat dissipation mechanism comprises a mounting square frame, a mounting frame, a heat dissipation fan, a water pump, a water tank and a circulating water cooling pipeline; the flowing speed of air inside the box body and outside air at the air inlet window is increased, so that heat generated when devices in the box body work is driven by the rapidly flowing air, water in the water tank is refrigerated through the semiconductor refrigeration sheet, the water pump is started, the refrigerated water is conveyed into the circulating water cooling pipeline, and the circulating water cooling effect is achieved. In addition, the heat exchange section is located between the cooling fan and the air inlet window, so that the temperature of the flowing air is reduced through the cold water in the heat exchange section when the quickly circulating air is in contact with the heat exchange section, and the cooling effect on the working device in the box body is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas metering and pressure regulating equipment, and particularly relates to a gas metering and pressure regulating equipment and a measurement and control system. Background Art

[0002] With the improvement of people's living standards, pipeline gas is becoming more and more popular in urban life. Since the pressure of gas in the transmission pipeline is relatively high, while only a relatively low-pressure gas is required for daily life and production, it is necessary to regulate the pressure of the gas between the transmission pipeline and users. At present, most of the boxes of pressure regulating boxes are made of fiberglass material by one-time molding, and are prone to aging and deformation in the outdoor environment. After the gas is regulated by the pressure regulating box and then connected to the metering instrument, the connecting pipeline of the metering instrument is exposed outside, which is easy for others to steal gas, hiding huge safety hazards and being inconvenient for installation and maintenance.

[0003] To solve the above problems, a gas pressure regulating and metering box is disclosed in the patent document with the publication number CN216952646U, which includes a box body and a pressure regulating and metering pipe arranged inside the box body. Both ends of the pressure regulating and metering pipe are respectively connected to a gas inlet pipe and a gas outlet pipe arranged outside the box body; an inlet ball valve, an inlet pressure gauge, a filtering mechanism, a first pressure regulator, a second pressure regulator, an outlet pressure gauge, a flowmeter, and an outlet ball valve are successively arranged on the pressure regulating and metering pipe along the gas flow path; wherein, the filtering mechanism includes an oil-water separator and a filter element pressing plate filter; the first pressure regulator and the second pressure regulator are arranged in parallel. The structure of the gas pressure regulating and metering box is reasonably designed, simple to operate, and convenient to use. The filtration, pressure regulation, metering, and valve control are unified and installed in a stainless steel box body, increasing the integrity, safety, and metering accuracy of the pressure regulating and metering box.

[0004] However, only by setting an air inlet window on the existing gas pressure regulating and metering box, the components working inside the box are cooled, and the heat dissipation effect is not ideal enough. Summary of the Invention

[0005] The purpose of the present invention is to provide a gas metering and pressure regulating equipment and a measurement and control system, aiming to solve the technical problem that only by setting an air inlet window on the existing gas pressure regulating and metering box, the components working inside the box are cooled, and the heat dissipation effect is not ideal enough.

[0006] To achieve the above purpose, the present invention provides a gas metering and pressure regulating equipment, including a box body, a pressure regulating and metering pipe, a gas inlet pipe, a gas outlet pipe, and a heat dissipation mechanism. The gas inlet pipe and the gas outlet pipe are respectively arranged on both sides of the box body, the pressure regulating and metering pipe is arranged between the gas inlet pipe and the gas outlet pipe, an inlet ball valve, an inlet pressure gauge, a filtering mechanism, a first pressure regulator, a second pressure regulator, an outlet pressure gauge, a flowmeter, and an outlet ball valve are successively arranged on the pressure regulating and metering pipe along the gas flow path, and an air inlet window is arranged on the side surface of the box body;

[0007] The heat dissipation mechanism includes an installation square frame, an installation rack, a heat dissipation fan, a water pump, a water tank and a circulating water-cooled pipeline. The installation square frame is connected to the outer side wall of the box body and is arranged outside the air intake window. The installation rack is arranged inside the installation square frame. The heat dissipation fan is arranged on the installation rack and corresponds to the air intake window. The water pump and the water tank are also arranged on the outer side wall of the box body. The input end of the water pump is connected to the water tank. The output end of the water pump is provided with the circulating water-cooled pipeline. One end of the circulating water-cooled pipeline far from the water pump is connected to the water return port of the water tank. A heat exchange section is arranged on the circulating water-cooled pipeline, and the heat exchange section is located between the heat dissipation fan and the air intake window. A semiconductor refrigeration sheet is arranged on the water tank.

[0008] Wherein, the circulating water-cooled pipeline includes a heat exchange pipe, a water inlet pipe and a water return pipe. The heat exchange pipe is installed between the heat dissipation fan and the air intake window. The heat exchange section is arranged on the heat exchange pipe, and the heat exchange section is arranged in a disc-shaped structure. The two ends of the heat exchange section are respectively provided with the water inlet pipe and the water return pipe. The water inlet pipe is connected to the output end of the water pump, and the water return pipe is connected to the water return port of the water tank.

[0009] Wherein, the installation square frame includes a first shell and a second shell. The first shell is connected to the outer side wall of the box body. The second shell is installed on one side of the first shell far from the outer side wall of the box body. Card slots are arranged on both sides of the opposite surfaces of the first shell and the second shell. The end of the heat exchange pipe is clamped inside the corresponding two card slots.

[0010] Wherein, fixing wing plates are arranged on both sides of the surface of the first shell close to the outer side wall of the box body, and the fixing wing plates are detachably connected to the outer side wall of the box body.

[0011] Wherein, a dust-proof shell is further arranged on the outer side wall of the water tank. The dust-proof shell is arranged in a net cover structure and is arranged outside the semiconductor refrigeration sheet.

[0012] Wherein, the gas metering and pressure regulating equipment further includes a mixing component. A placement rack is arranged on the top of the water tank, and the mixing component is arranged on the placement rack. The output end of the mixing component is located inside the water tank.

[0013] Wherein, the mixing component includes a driving motor, a rotating shaft and stirring fan blades. The driving motor is installed on the placement rack. The output end of the driving motor is provided with the rotating shaft, and the stirring fan blades are arranged at one end of the rotating shaft extending into the water tank.

[0014] The present invention also provides a gas metering and pressure regulating control system, which includes the gas metering and pressure regulating equipment as described above, and further includes a wireless transmission module, an alarm, and a monitoring center. The wireless transmission module and the alarm are also arranged on the box body. The wireless transmission module is used to upload the real-time measurement data of the inlet pressure gauge and the outlet pressure gauge to the monitoring center. The monitoring center is used to compare the difference between the inlet pressure gauge and the outlet pressure gauge in real time. The alarm is used to emit an audible and visual alarm signal when the difference between the inlet pressure gauge and the outlet pressure gauge exceeds a threshold value.

[0015] For a gas metering and pressure regulating equipment and control system of the present invention, start the cooling fan to accelerate the flow rate of the air inside the box body and the outside air at the air inlet window, so as to drive the heat generated by the devices inside the box body through the rapidly flowing air. And use the semiconductor refrigeration sheet to refrigerate the water in the water tank, start the water pump, and transport the refrigerated water into the circulating water cooling pipeline. Since the heat exchange section is located between the cooling fan and the air inlet window, when the rapidly flowing air contacts the heat exchange section, the temperature of the flowing air is reduced by the cold water in the heat exchange section, further improving the heat dissipation effect on the devices working inside the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the gas metering and pressure regulating equipment according to the first embodiment of the present invention.

[0018] Figure 2 is a partial structural schematic diagram of the gas metering and pressure regulating equipment according to the first embodiment of the present invention.

[0019] Figure 3 is provided by the present invention Figure 2 is an enlarged partial structural view of part A.

[0020] Figure 4 is a schematic diagram of the split structure of the installation frame and the box body in the first embodiment of the present invention.

[0021] Figure 5 is a schematic diagram of the connection structure of the pressure regulating and metering pipe in the first embodiment of the present invention.

[0022] Figure 6It is a schematic diagram of the external structure of the water tank in the second embodiment of the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the mixing component in the second embodiment of the present invention.

[0024] Figure 8 It is a principle block diagram of the gas metering and pressure regulating control system provided by the present invention.

[0025] 101 - Box body, 102 - Pressure regulating and metering pipe, 103 - Gas inlet pipe, 104 - Gas outlet pipe, 105 - Mounting rack, 106 - Cooling fan, 107 - Water pump, 108 - Water tank, 109 - Heat exchange pipe, 110 - Water inlet pipe, 111 - Water return pipe, 112 - First shell, 113 - Second shell, 114 - Inlet ball valve, 115 - Inlet pressure gauge, 116 - Filter mechanism, 117 - First pressure regulator, 118 - Second pressure regulator, 119 - Outlet pressure gauge, 120 - Flow meter, 121 - Outlet ball valve, 122 - Air intake window, 123 - Heat exchange section, 124 - Semiconductor refrigeration sheet, 125 - Card slot, 126 - Fixed wing plate, 127 - Dust-proof shell, 201 - Driving motor, 202 - Rotating shaft, 203 - Stirring fan blade, 204 - Placing rack, 301 - Wireless transmission module, 302 - Alarm, 303 - Monitoring center. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] First embodiment:

[0028] Please refer to Figures 1 to 5 , where Figure 1 is a schematic diagram of the structure of the gas metering and pressure regulating device in the first embodiment, Figure 2 is a schematic diagram of a partial structure of the gas metering and pressure regulating device in the first embodiment, Figure 3 is Figure 2 a partial enlarged structure view of the A position of Figure 4 is a schematic diagram of the split structure of the installation square and the box body in the first embodiment, Figure 5 is a schematic diagram of the connection structure of the pressure regulating and metering pipe in the first embodiment.

[0029] The present invention provides a gas metering and pressure regulating device, which includes a box body 101, a pressure regulating and metering pipe 102, a gas inlet pipe 103, a gas outlet pipe 104 and a heat dissipation mechanism. The heat dissipation mechanism includes a mounting frame, a mounting bracket 105, a heat dissipation fan 106, a water pump 107, a water tank 108 and a circulating water cooling pipeline. The circulating water cooling pipeline includes a heat exchange pipe 109, a water inlet pipe 110 and a water return pipe 111. The mounting frame includes a first housing 112 and a second housing 113. Through the foregoing solution, the problem that the existing gas pressure regulating and metering box only dissipates heat from the devices working inside the box body 101 by setting an air inlet window 122, and the heat dissipation effect is not ideal, is solved. It can be understood that the foregoing solution can be used in the structure of the gas pressure regulating and metering device.

[0030] For this specific embodiment, the gas inlet pipe 103 and the gas outlet pipe 104 are respectively arranged on both sides of the box body 101. The pressure regulating and metering pipe 102 is arranged between the gas inlet pipe 103 and the gas outlet pipe 104. Along the gas flow path, the pressure regulating and metering pipe 102 is successively provided with an inlet ball valve 114, an inlet pressure gauge 115, a filtering mechanism 116, a first pressure regulator 117, a second pressure regulator 118, an outlet pressure gauge 119, a flowmeter 120 and an outlet ball valve 121. An air inlet window 122 is arranged on the side surface of the box body 101. After the gas in the gas transmission pipeline passes through the gas inlet pipe 103 and the inlet ball valve 114, it enters the filtering mechanism 116 for filtering, then flows through the first pressure regulator 117 and the second pressure regulator 118 for pressure regulation. After the pressure regulation is completed, it flows through the flowmeter 120 for gas metering, and then through the outlet ball valve 121, and flows out from the gas outlet pipe 104 to the user for gas supply, so as to achieve the purpose of safe and reliable use of gas. Integrating the pressure regulation and metering functions makes it more convenient to use.

[0031] Wherein, the installation frame is connected to the outer wall of the box body 101 and is arranged outside the air intake window 122, the installation frame is provided with the installation frame 105, the cooling fan 106 is provided on the installation frame 105, the cooling fan 106 corresponds to the air intake window 122, the outer wall of the box body 101 is also provided with the water pump 107 and the water tank 108, the input end of the water pump 107 is connected to the water tank 108, the output end of the water pump 107 is provided with the circulating water cooling pipe, the end of the circulating water cooling pipe away from the water pump 107 is connected to the return water port of the water tank 108, the circulating water cooling pipe is provided with a heat exchange section 123, and the heat exchange section 123 is located between the cooling fan 106 and the air intake window 122 A semiconductor refrigeration sheet 124 is provided on the water tank 108, and the cooling fan 106 is started to accelerate the flow speed of the internal and external air of the box body 101 at the air inlet window 122, so that the heat generated by the components in the box body 101 when working is driven by the fast-flowing air, and the water in the water tank 108 is cooled by the semiconductor refrigeration sheet 124, and the water pump 107 is started to transport the cooled water to the circulating water cooling pipeline. Since the heat exchange section 123 is located between the cooling fan 106 and the air inlet window 122, when the fast-circulating air contacts the heat exchange section 123, the temperature of the flowing air is reduced by the cold water in the heat exchange section, thereby further improving the heat dissipation effect on the components working in the box body 101.

[0032] Secondly, the heat exchange tube 109 is installed between the cooling fan 106 and the air inlet window 122. The heat exchange tube 109 is provided with the heat exchange section 123. The heat exchange section 123 is arranged in a disc-shaped structure. The water inlet pipe 110 and the water return pipe 111 are respectively arranged at both ends of the heat exchange section 123. The water inlet pipe 110 is connected to the output end of the water pump 107, and the water return pipe 111 is connected to the return port of the water tank 108. Since the heat exchange section 123 is arranged in a disc-shaped structure, the contact area between the fast-flowing air and the heat exchange section 123 is increased, so that the cooling effect on the flowing air is better.

[0033] Meanwhile, the first housing 112 is connected to the outer sidewall of the box body 101. A second housing 113 is installed on a side of the first housing 112 away from the outer sidewall of the box body 101. Clamping grooves 125 are provided on both sides of the opposite surfaces of the first housing 112 and the second housing 113. The end of the heat exchange tube 109 is clamped inside the corresponding two clamping grooves 125. Through the arrangement of the clamping grooves 125, it is convenient to install the heat exchange tube 109 inside the installation square frame. Fixed wing plates 126 are provided on both sides of a side of the first housing 112 close to the outer sidewall of the box body 101. The fixed wing plates 126 are detachably connected to the outer sidewall of the box body 101. Through the arrangement of the fixed wing plates 126, the installation of the first housing 112 is completed.

[0034] In addition, a dust-proof housing 127 is further provided on the outer sidewall of the water tank 108. The dust-proof housing 127 is arranged in a mesh structure. The dust-proof housing 127 is arranged outside the semiconductor refrigeration chip 124. Through the arrangement of the dust-proof housing 127, it is avoided that dust adheres to the hot end of the semiconductor refrigeration chip 124, resulting in a better refrigeration effect of the semiconductor refrigeration chip 124. And because the dust-proof housing 127 is arranged in a mesh structure, while the dust-proof housing 127 plays a dust-proof role, it will not cause the heat generated by the hot end of the semiconductor refrigeration chip 124 to accumulate inside the dust-proof housing 127.

[0035] Moreover, the water pump 107 is installed at the bottom of the water tank 108. A side of the water tank 108 away from the box body 101 extends outside the water pump 107. Through the above arrangement, the water tank 108 can be used to shield the water pump 107. When the box body 101 is located outdoors, in rainy days, the water tank 108 can be used to shield the water pump 107 to reduce the influence of the external environment on the water pump 107.

[0036] When using a gas metering and pressure regulating device according to this embodiment, after the gas in the gas transmission pipeline passes through the gas inlet pipe 103 and the inlet ball valve 114, it enters the filtering mechanism 116 for filtering, then flows through the first pressure regulator 117 and the second pressure regulator 118 for pressure regulation. After the pressure regulation is completed, it flows through the flowmeter 120 for gas metering, and then passes through the outlet ball valve 121 and flows out from the gas outlet pipe 104 to the user for gas supply, so as to achieve the purpose of safe and reliable use of gas. Integrating the pressure regulation and metering functions makes it more convenient to use. And start the cooling fan 106 to accelerate the air flow speed between the inside of the box 101 and the outside air at the air inlet window 122, so as to drive the heat generated by the devices in the box 101 through the rapidly flowing air. And use the semiconductor refrigeration sheet 124 to refrigerate the water in the water tank 108, start the water pump 107, and transport the refrigerated water into the circulating water cooling pipeline. Since the heat exchange section 123 is located between the cooling fan 106 and the air inlet window 122, when the rapidly flowing air contacts the heat exchange section 123, the temperature of the flowing air is reduced by the cold water in the heat exchange section, further improving the heat dissipation effect on the devices working in the box 101.

[0037] Second Embodiment:

[0038] Based on the first embodiment, please refer to Figure 6 and Figure 7 , Figure 6 which is the schematic diagram of the external structure of the water tank in the second embodiment, Figure 7 and which is the schematic diagram of the structure of the mixing component in the second embodiment.

[0039] The present invention provides a gas metering and pressure regulating device which further includes a mixing component. The mixing component includes a driving motor 201, a rotating shaft 202 and stirring fan blades 203.

[0040] For this specific embodiment, a placement rack 204 is provided at the top of the water tank 108, and the mixing component is arranged on the placement rack 204. The output end of the mixing component is located inside the water tank 108. Through the arrangement of the mixing component, the water that returns to the water tank 108 after heat exchange is fully mixed with the cold water in the water tank 108, and when using the semiconductor refrigeration sheet 124 to refrigerate the water in the water tank 108, the refrigeration effect is better.

[0041] Among them, the driving motor 201 is installed on the placement rack 204. A rotating shaft 202 is provided at the output end of the driving motor 201. A stirring fan blade 203 is provided at one end of the rotating shaft 202 extending into the interior of the water tank 108. When the driving motor 201 is started, the stirring fan blade 203 is driven to rotate through the rotating shaft 202.

[0042] When using a gas metering and pressure regulating device according to this embodiment, the driving motor 201 is started. The stirring fan blade 203 is driven to rotate through the rotating shaft 202. Through the rotating stirring fan blade 203, the water that returns to the water tank 108 after heat exchange is fully mixed with the cold water in the water tank 108. When the water in the water tank 108 is cooled by the semiconductor refrigeration sheet 124, the refrigeration effect is better.

[0043] Please refer to Figure 8 The present invention further provides a gas metering and pressure regulating measurement and control system, which includes the gas metering and pressure regulating device as described above, and further includes a wireless transmission module 301, an alarm 302, and a monitoring center 303. The wireless transmission module 301 and the alarm 302 are further provided on the box body 101. The wireless transmission module 301 is used to upload the real-time measurement data of the inlet pressure gauge 115 and the outlet pressure gauge 119 to the monitoring center 303. The monitoring center 303 is used to compare the difference between the inlet pressure gauge 115 and the outlet pressure gauge 119 in real time. The alarm 302 is used to emit an audible and visual alarm signal when the difference between the inlet pressure gauge 115 and the outlet pressure gauge 119 exceeds a threshold value.

[0044] In this embodiment, the real-time measurement data of the inlet pressure gauge 115 and the outlet pressure gauge 119 are uploaded to the monitoring center 303 by using the wireless transmission module 301. The monitoring center 303 compares the difference between the inlet pressure gauge 115 and the outlet pressure gauge 119 in real time. When the difference between the inlet pressure gauge 115 and the outlet pressure gauge 119 exceeds the threshold value, an audible and visual alarm signal is emitted through the alarm 302.

[0045] The above-disclosed is only a preferred embodiment of the present invention. Of course, the scope of the rights of the present invention cannot be limited by this. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A gas metering and pressure regulating device, comprising a box, a pressure regulating and metering pipe, a gas inlet pipe and a gas outlet pipe, wherein the gas inlet pipe and the gas outlet pipe are respectively arranged on both sides of the box, the pressure regulating and metering pipe is arranged between the gas inlet pipe and the gas outlet pipe, the pressure regulating and metering pipe is sequentially provided with an inlet ball valve, an inlet pressure gauge, a filtering mechanism, a first pressure regulator, a second pressure regulator, an outlet pressure gauge, a flow meter and an outlet ball valve along the gas flow path, an air inlet window is arranged on the side of the box, and the characteristics are as follows: Also includes a heat dissipation mechanism; The heat dissipation mechanism includes an installation frame, a mounting rack, a cooling fan, a water pump, a water tank and a circulating water cooling pipe. The installation frame is connected to the outer side wall of the box body and is arranged on the outside of the air intake window. The installation frame is arranged inside, and the cooling fan is arranged on the mounting rack. The cooling fan corresponds to the air intake window. The water pump and the water tank are also arranged on the outer side wall of the box body. The input end of the water pump is connected to the water tank, and the circulating water cooling pipe is arranged at the output end of the water pump. The end of the circulating water cooling pipe away from the water pump is connected to the return water port of the water tank. The circulating water cooling pipe is provided with a heat exchange section, and the heat exchange section is located between the cooling fan and the air intake window. The water tank is provided with a semiconductor refrigeration sheet.

2. The gas metering and pressure regulating equipment according to claim 1, characterized in that: The circulating water cooling pipeline includes a heat exchange pipe, a water inlet pipe and a return pipe. The heat exchange pipe is installed between the cooling fan and the air inlet window. The heat exchange section is arranged on the heat exchange pipe. The heat exchange section is arranged in a disc-shaped structure. The water inlet pipe and the return pipe are respectively arranged at both ends of the heat exchange section. The water inlet pipe is connected to the output end of the water pump, and the return pipe is connected to the return water port of the water tank.

3. The gas metering and pressure regulating equipment according to claim 2, characterized in that: The installation frame includes a first shell and a second shell, the first shell is connected to the outer side wall of the box body, the second shell is installed on a side of the first shell away from the outer side wall of the box body, and slots are provided on both sides of the facing sides of the first shell and the second shell, and the ends of the heat exchange tubes are clamped in the corresponding two slots.

4. The gas metering and pressure regulating device according to claim 3, characterized in that: Fixed wing plates are arranged on both sides of one side of the first shell close to the outer side wall of the box body, and the fixed wing plates are detachably connected to the outer side wall of the box body.

5. The gas metering and pressure regulating equipment according to claim 4, characterized in that: The outer side wall of the water tank is also provided with a dustproof shell, the dustproof shell is provided in a mesh cover structure, and the dustproof shell is provided outside the semiconductor refrigeration plate.

6. The gas metering and pressure regulating equipment according to claim 1, characterized in that: The gas metering and pressure regulating equipment also includes a mixing component. A placement rack is provided at the top of the water tank, the mixing component is provided on the placement rack, and the output end of the mixing component is located inside the water tank.

7. The gas metering and pressure regulating device according to claim 6, characterized in that: The mixing assembly includes a driving motor, a rotating shaft and stirring blades. The driving motor is installed on the placement rack. The output end of the driving motor is provided with the rotating shaft. The stirring blades are provided at one end of the rotating shaft extending into the interior of the water tank.

8. A gas metering, pressure regulating and control system, comprising the gas metering, pressure regulating device according to claim 1, characterized in that: It also includes a wireless transmission module, an alarm and a monitoring center. The wireless transmission module and the alarm are also arranged on the box body. The wireless transmission module is used to upload the real-time measurement data of the inlet pressure gauge and the outlet pressure gauge to the monitoring center. The monitoring center is used to compare the difference between the inlet pressure gauge and the outlet pressure gauge in real time. The alarm is used to send out an audible and visual alarm signal when the difference between the inlet pressure gauge and the outlet pressure gauge exceeds a threshold value.

Images