Gas electrical adjusting mechanism

Abstract

The utility model relates to the technical field of fuel gas adjustment, in particular to an electrical fuel gas adjusting mechanism. According to the technical scheme, a valve body is included, an air inlet pipe is welded to the position, close to the lower surface, of one side of the outer surface of the valve body, a flowmeter is fixedly connected to the tail end of the air inlet pipe, and an air outlet pipe is welded to the position, close to the upper surface, of the side, away from the air inlet pipe, of the outer surface of the valve body; a through hole is formed in the axis position of the upper surface of the cover plate, a valve rod is movably inserted into the through hole, the two ends of the valve rod are fixedly connected with a rack and a conical valve element respectively, and a housing is fixedly installed on the upper surface of the cover plate. According to the utility model, the flow rate of the used gas can be automatically adjusted according to the instantaneous flow rate of the supplied gas in the gas pipeline, the fluctuation of the used gas flow rate caused by the fluctuation of the gas pressure in the gas pipeline is avoided, the stable supply of the used gas flow rate is ensured, and the energy consumption is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas regulation, in particular to a gas electrical regulation mechanism. Background Art

[0002] Gas is a general term for gaseous fuels, which can burn and release heat for use by residents and industrial enterprises. There are many types of gas. According to the source of gas, gas can usually be divided into natural gas, artificial gas, liquefied petroleum gas and biomass gas. Compared with developed countries, my country's gas supply industry started later. The gas distributed mainly includes three types: coal gas, liquefied petroleum gas and natural gas. my country's gas supply has increased significantly since the 1990s. Among them, after a significant increase in the supply of artificial coal gas in 1990, it is in a relatively slow growth stage due to its shortcomings such as greater pollution and strong toxicity; liquefied petroleum gas is affected by the rise in oil prices, and the supply remains stable; the price of natural gas with the same calorific value is 30%-50% cheaper than gasoline and diesel, which is obviously economical. At the same time, the country pays more and more attention to environmental protection, and the market demand for clean energy continues to grow. As a clean, efficient and cheap energy, natural gas consumption has developed rapidly, and the gas transported through pipelines often needs to be adjusted during the combustion process to control the gas flow.

[0003] At present, in the process of gas combustion, the gas flow rate is usually adjusted before use. However, there are certain pressure fluctuations in the gas transportation process, which leads to fluctuations in the gas flow rate, resulting in increased energy consumption and affecting the stability of the flame size. For this reason, we propose a gas electrical regulation mechanism. Utility Model Content

[0004] The utility model aims to provide a gas electrical regulating mechanism, which has the advantages of being able to automatically adjust the flow of used gas according to the instantaneous flow of gas supplied in the gas pipeline, avoiding the fluctuation of the used gas flow caused by the gas pressure fluctuation in the gas pipeline, ensuring the stable supply of the used gas flow, thereby saving energy consumption. It solves the problem that in the current process of gas combustion and use, the used gas flow is usually adjusted before use, but there is a certain pressure fluctuation in the gas transportation process, which leads to fluctuation of the used gas flow, resulting in increased energy consumption and affecting the stability of the flame size.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas electrical regulating mechanism, comprising a valve body, an air inlet pipe is welded on one side of the outer surface of the valve body near the lower surface, a flow meter is fixedly connected to the end of the air inlet pipe, an air outlet pipe is welded on the side of the valve body away from the air inlet pipe near the upper surface, a cover plate is fixedly mounted on the upper surface of the valve body, a through hole is provided at the axial position of the upper surface of the cover plate, a valve stem is movably inserted in the through hole, a rack and a conical valve core are respectively fixedly connected at both ends of the valve stem, a cover shell is fixedly mounted on the upper surface of the cover plate, a reduction motor is fixedly mounted on one side of the outer surface of the cover shell, a transmission gear is fixedly connected to the end of the output shaft of the reduction motor, and a PLC controller is fixedly mounted on the front surface of the cover shell.

[0006] Preferably, a conical ring is welded inside the valve body between the air outlet pipe and the air inlet pipe.

[0007] Preferably, the transmission gear is meshed with the rack, and the transmission gear is located inside the housing.

[0008] Preferably, the flow meter and the reduction motor are both electrically connected to a PLC controller, and the PLC controller controls the reduction motor to operate according to a flow signal transmitted from the flow meter.

[0009] Preferably, the cover plate and the valve body are fixedly connected by bolts, which facilitates the removal of the cover plate and thus facilitates the inspection and maintenance of the interior of the valve body.

[0010] Preferably, a sealing plate is fixedly mounted on the outer surface of the valve stem, and the sealing plate is located above the gas outlet pipe to prevent the gas inside the valve body from flowing out from the gap between the valve body and the cover plate.

[0011] Preferably, the rack is located outside the valve body, and the conical valve core is located inside the valve body.

[0012] Preferably, the end of the flow meter is fixedly connected to an air supply pipe, a buffer tube is welded on the upper surface of the air supply pipe, a coil spring is fixedly connected to the top of the inner wall of the buffer tube, and the end of the coil spring is fixedly connected to a piston plate. When the gas pressure inside the air supply pipe increases, the coil spring is compressed, the piston plate rises, and at the same time, part of the gas enters the buffer tube to reduce the pressure inside the air supply pipe. When the pressure inside the air supply pipe decreases, the gas inside the buffer tube enters the air supply pipe to increase the gas pressure to balance the gas pressure entering the flow meter from the air supply pipe, eliminate small fluctuations in the gas pressure, make the gas delivery more stable, avoid frequent starting of the reduction motor, save power consumption and extend the service life of the reduction motor.

[0013] Preferably, a sliding sleeve is fixedly installed on the upper surface of the piston plate. When the piston plate is lifted or lowered inside the buffer tube, the sliding sleeve rises or falls accordingly, and the outer surface of the sliding sleeve contacts the inner wall of the buffer tube, thereby increasing the contact area with the inner wall of the buffer tube, thereby improving the stability of the piston plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model achieves the effect of automatically adjusting the flow of used gas according to the instantaneous flow of gas supplied in the gas pipeline by arranging a valve body, a conical valve core, a cover plate, a cover shell, a PLC controller, a reduction motor, a rack, a valve stem and a flow meter, so as to avoid fluctuations in the used gas flow caused by gas pressure fluctuations in the gas pipeline, ensure stable supply of used gas flow, and thus save energy consumption. The gas enters the valve body from the intake pipe after passing through the flow meter, and the intake flow is monitored by the flow meter, and the flow signal is transmitted to the PLC controller. When the gas flow value increases, the PLC controller sends a control signal to the reduction motor, and the reduction motor drives the rack, the valve stem and the conical valve core to descend and reduce the opening. When the gas flow decreases, the PLC controller sends a control signal to the reduction motor, and the reduction motor drives the rack, the valve stem and the conical valve core to rise and increase the opening, so as to stabilize the gas flow discharged from the outlet pipe and avoid fluctuations in the used gas flow caused by gas pressure fluctuations in the gas pipeline.

[0016] 2. The utility model achieves the effect of eliminating small fluctuations in the gas pressure in the gas supply pipe and avoiding frequent starting of the reduction motor by arranging a buffer tube, a coil spring and a piston plate, saving power consumption and extending the service life of the reduction motor. When the gas pressure inside the gas supply pipe increases, the coil spring is compressed, the piston plate rises, and part of the gas enters the buffer tube to reduce the pressure inside the gas supply pipe. When the pressure inside the gas supply pipe decreases, the gas inside the buffer tube enters the gas supply pipe to increase the gas pressure, so as to balance the gas pressure entering the flow meter from the gas supply pipe, eliminate small fluctuations in gas pressure, and make the gas delivery more stable.

[0017] 3. The utility model achieves the effect of improving the stability of the piston plate during the lifting process by setting a sliding sleeve. When the piston plate is lifted or lowered inside the buffer tube, the sliding sleeve is lifted or lowered accordingly, and the outer surface of the sliding sleeve contacts the inner wall of the buffer tube, thereby increasing the contact area with the inner wall of the buffer tube, thereby improving the stability of the piston plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the partial main cross-sectional structure of the buffer tube of the utility model;

[0022] Figure 5 It is a schematic diagram of a partial side sectional structure of the cover shell of the utility model.

[0023] Figure numerals: 1. air supply pipe; 2. buffer pipe; 3. cover plate; 4. air outlet pipe; 5. valve body; 6. air inlet pipe; 7. flow meter; 8. rack; 9. cover; 10. PLC controller; 11. reduction motor; 12. through hole; 13. sealing plate; 14. conical ring; 15. conical valve core; 16. coil spring; 17. sleeve; 18. piston plate; 19. transmission gear; 20. valve stem. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Embodiment 1

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a gas electrical regulating mechanism proposed by the utility model includes a valve body 5, an air inlet pipe 6 is welded to one side of the outer surface of the valve body 5 near the lower surface, a flow meter 7 is fixedly connected to the end of the air inlet pipe 6, an air outlet pipe 4 is welded to one side of the outer surface of the valve body 5 away from the air inlet pipe 6 near the upper surface, a cover plate 3 is fixedly installed on the upper surface of the valve body 5, and the cover plate 3 and the valve body 5 are fixedly connected by bolts, which is convenient for disassembly of the cover plate 3, thereby facilitating the inspection and maintenance of the inside of the valve body 5.

[0027] A through hole 12 is provided at the axial position of the upper surface of the cover plate 3, and a valve stem 20 is movably inserted inside the through hole 12. A rack 8 and a conical valve core 15 are fixedly connected at both ends of the valve stem 20, respectively. The rack 8 is located outside the valve body 5, and the conical valve core 15 is located inside the valve body 5. The outer diameter of the conical valve core 15 decreases from top to bottom, and its appearance is an inverted cone. A conical ring 14 is welded between the outlet pipe 4 and the inlet pipe 6 inside the valve body 5. The inner diameter of the conical ring 14 decreases from top to bottom, and its interior is an inverted cone. The gas enters the valve body 5 from the inlet pipe 6, flows through the gap between the conical valve core 15 and the conical ring 14, and is discharged through the outlet pipe 4 again for combustion. By adjusting the gap between the conical valve core 15 and the conical ring 14, the opening and flow rate of the gas can be controlled.

[0028] A sealing plate 13 is fixedly installed on the outer surface of the valve stem 20, and the sealing plate 13 is located above the outlet pipe 4 to prevent the gas inside the valve body 5 from flowing out from the gap between the valve body 5 and the cover plate 3. A cover shell 9 is fixedly installed on the upper surface of the cover plate 3, and a reduction motor 11 is fixedly installed on one side of the outer surface of the cover shell 9. A transmission gear 19 is fixedly connected to the end of the output shaft of the reduction motor 11, and the transmission gear 19 is meshed with the rack 8. The transmission gear 19 is located inside the cover shell 9. A PLC controller 10 is fixedly installed on the front surface of the cover shell 9, and the flow meter 7 and the reduction motor 11 are electrically connected to the PLC controller 10.

[0029] When the utility model is in use, the gas enters the valve body 5 from the intake pipe 6 after passing through the flow meter 7, the intake flow is monitored by the flow meter 7, and the flow signal is transmitted to the PLC controller 10. When the gas flow value increases, the PLC controller 10 sends a control signal to the reduction motor 11, and the reduction motor 11 drives the rack 8, the valve stem 20 and the conical valve core 15 to descend and reduce the opening. When the gas flow decreases, the PLC controller 10 sends a control signal to the reduction motor 11, and the reduction motor 11 drives the rack 8, the valve stem 20 and the conical valve core 15 to rise and increase the opening, so that the gas flow discharged from the gas outlet pipe 4 is stable, avoiding the gas pressure fluctuation in the gas pipeline causing the gas flow to fluctuate, ensuring the stable supply of the gas flow, thereby saving energy consumption.

[0030] Embodiment 2

[0031] like Figure 1 , Figure 3 and Figure 4 As shown, a gas electrical regulating mechanism proposed by the utility model, compared with the first embodiment, this embodiment also includes a flow meter 7 with a gas supply pipe 1 fixedly connected at the end thereof, external gas enters the flow meter 7 through the gas supply pipe 1, a buffer tube 2 is welded on the upper surface of the gas supply pipe 1, a coil spring 16 is fixedly connected to the top of the inner wall of the buffer tube 2, a piston plate 18 is fixedly connected to the end of the coil spring 16, a sleeve 17 is fixedly installed on the upper surface of the piston plate 18, and during the lifting and lowering process of the piston plate 18 inside the buffer tube 2, the sleeve 17 is lifted and lowered accordingly, and the outer surface of the sleeve 17 is in contact with the inner wall of the buffer tube 2, thereby increasing the contact area with the inner wall of the buffer tube 2, thereby improving the stability of the piston plate 18.

[0032] In this embodiment, when the gas pressure inside the gas supply pipe 1 increases, the coil spring 16 is compressed, the piston plate 18 rises, and at the same time, part of the gas enters the buffer tube 2 to reduce the pressure inside the gas supply pipe 1. When the pressure inside the gas supply pipe 1 decreases, the gas inside the buffer tube 2 enters the gas supply pipe 1 to increase the gas pressure, so as to balance the gas pressure entering the flow meter 7 from the gas supply pipe 1, eliminate small fluctuations in the gas pressure, make the gas delivery more stable, avoid frequent starting of the reduction motor 11, save electricity consumption and extend the service life of the reduction motor 11.

[0033] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A gas electrical regulating mechanism, comprising a valve body (5), characterized in that: An air inlet pipe (6) is welded to one side of the outer surface of the valve body (5) near the lower surface, and a flow meter (7) is fixedly connected to the end of the air inlet pipe (6). An air outlet pipe (4) is welded to the side of the outer surface of the valve body (5) away from the air inlet pipe (6) near the upper surface. A cover plate (3) is fixedly mounted on the upper surface of the valve body (5). A through hole (12) is provided at the axial center position of the upper surface of the cover plate (3). A valve stem (20) is movably inserted inside the through hole (12). A rack (8) and a conical valve core (15) are fixedly connected to the two ends of the valve stem (20), respectively. A cover shell (9) is fixedly mounted on the upper surface of the cover plate (3). A reduction motor (11) is fixedly mounted on one side of the outer surface of the cover shell (9). A transmission gear (19) is fixedly connected to the end of the output shaft of the reduction motor (11). A PLC controller (10) is fixedly mounted on the front surface of the cover shell (9).

2. A gas electrical regulating mechanism according to claim 1, characterized in that: A conical ring (14) is welded inside the valve body (5) between the air outlet pipe (4) and the air inlet pipe (6).

3. A gas electrical regulating mechanism according to claim 1, characterized in that: The transmission gear (19) is meshed with the rack (8), and the transmission gear (19) is located inside the housing (9).

4. A gas electrical regulating mechanism according to claim 1, characterized in that: The flow meter (7) and the reduction motor (11) are both electrically connected to the PLC controller (10).

5. A gas electrical regulating mechanism according to claim 1, characterized in that: The cover plate (3) and the valve body (5) are fixedly connected by bolts.

6. A gas electrical regulating mechanism according to claim 1, characterized in that: A sealing plate (13) is fixedly mounted on the outer surface of the valve stem (20).

7. A gas electrical regulating mechanism according to claim 1, characterized in that: The rack (8) is located outside the valve body (5), and the conical valve core (15) is located inside the valve body (5).

8. A gas electrical regulating mechanism according to claim 1, characterized in that: The end of the flow meter (7) is fixedly connected to an air supply pipe (1), a buffer pipe (2) is welded to the upper surface of the air supply pipe (1), a coil spring (16) is fixedly connected to the top of the inner wall of the buffer pipe (2), and the end of the coil spring (16) is fixedly connected to a piston plate (18).

9. A gas electrical regulating mechanism according to claim 8, characterized in that: A sliding sleeve (17) is fixedly mounted on the upper surface of the piston plate (18).

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