Heat supply pipeline valve non-section modulation electric actuator

Abstract

The utility model discloses a heat supply pipeline valve non-section modulation electric actuator which is composed of a shell, a direct current motor, a reduction gear and a digital controller, and the actuator enables the gear to be gradually decelerated and increase torsion by designing different gear ratios of the gear. The rotating speed of 8500-10400 revolutions per minute output by the direct current motor is reduced to about 10 revolutions per minute, the transmission ratio can be increased to more than 4024, the torsion is increased by 20-25% compared with that of an existing actuator, and smooth opening and closing of a heat supply pipeline valve are guaranteed; the digital controller intelligently calculates the rotation angle of the self-control output shaft through big data to drive an external load heat supply pipeline valve to rotate, so that the non-section modulation effect of the valve is achieved; according to actual measurement, the electric actuator can save energy by about 15%, and the electric actuator is a special technology beneficial to the nation and the people.

Description

Technical Field

[0001] This utility model relates to the field of valve electric actuator technology, and in particular to a throttle-free modulated electric actuator for heating pipeline valves. Background Technology

[0002] Pipeline valves and their actuators are widely used in heating facilities. Electric actuators for heating pipeline valves on the market are usually only designed with limit switches for fully open or fully closed, which cannot accurately adjust the valve stroke range. This causes users to not receive heating as needed. Some users feel that the temperature is not enough even when the valve is fully opened, while others need to open windows to cool down. This phenomenon occurs frequently in spring and autumn, resulting in energy waste. There are also problems with valve opening and closing failures caused by insufficient torque of the electric actuator gears, which can lead to scaling in the heating pipeline. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model discloses a seamless modulation electric actuator for heating pipeline valves, including a housing, a DC motor, a reduction gear, and a digital controller. The actuator uses different gear ratios to gradually reduce the speed of the gears and increase the torque, ensuring smooth opening and closing of the valve. At the same time, a digital controller is set up to automatically control the rotation angle of the output shaft through big data calculation, thereby achieving a seamless modulation effect for the valve.

[0004] A throttleless modulated electric actuator for heating pipeline valves includes a housing 1, a DC motor 2, a reduction gear 4, and a digital controller 6. The housing 1 includes a housing panel 11, a housing base plate 12, and a housing frame 13. The DC motor 2 is mounted on the front of the housing panel 11, with its shaft inserted into the housing through a through hole. A main gear 41 is mounted on the shaft of the DC motor 2. The housing panel 11 also has a stroke control hole for stroke control of the gear post. A gear post 121 is mounted on the housing base plate 12. The gear column 121 is used to install the reduction gear 4; the reduction gear 4 meshes with the main gear 41; the housing base plate 12 is also provided with an output shaft through hole, and a bushing 3 is installed in the hole to fix the output shaft 5; one end of the output shaft 5 is designed with a tenon; the output shaft 5 passes through the housing panel 11; the output shaft 5 is fitted into the hole of the digital controller 6 and fixed to the front of the housing panel 11 with screws 8; the tenon end of the output shaft 5 is connected to the load valve connector; the housing frame 13 is placed on the housing base plate 12, the housing panel 11 is covered, and it is fixed with fixing screws 8 to form the housing.

[0005] The engagement sequence of the reduction gear 4 is as follows: main gear 41 engages with driven gear 42, driven gear 42 engages with driven gear 43, driven gear 43 engages with driven gear 44, driven gear 44 engages with driven gear 45, driven gear 45 engages with driven gear 46, and driven gear 46 engages with driven gear 47.

[0006] The reduction gear 4 includes a coaxial gear and a coaxial double gear, wherein the main gear 41 and the driven gear 42 are... gear Gear 47 is a coaxial single gear; driven gears 42, 43, 44, 45, and 46 are coaxial double gears; gear 6... Follower The gear 47 is equipped with a travel stop to control the travel position.

[0007] The digital controller 6 includes a digital control chip assembly, an angle travel sensor, and limit switches 7; the limit switches 7 are respectively set in the fully closed position and the fully open position.

[0008] The actuator deceleration principle is as follows: The reduction gear 4 uses different gear ratios to gradually reduce the speed of the gear and increase the torque; the reduction gear 4 can reduce the speed of the DC motor output from 8500-10400 rpm to 10 rpm, while the transmission ratio can be increased to more than 4024, which is 20-25% higher than that of conventional actuators. The increased torque can ensure smooth opening and closing of the valve and prevent valve opening and closing failures caused by scaling in the heating pipeline, thus affecting normal heating.

[0009] The actuator operates on the following principle: After receiving the start signal, the digital controller 6 calculates the rotation angle of the output shaft 5 using big data intelligent calculation. The angle and stroke parameters from the digital controller 6 are then sent to the DC motor 2. Upon receiving the drive signal, the DC motor 2 rotates, driving the main gear 41. The main gear 41 meshes with the driven gear 42, which meshes with the driven gear 43, which meshes with the driven gear 44, which meshes with the driven gear 45. Gear No. 4, driven gear No. 45 meshes with gear No. 46, driven gear No. 6, driven gear No. 46 meshes with driven stop gear No. 47. The gear of driven stop gear No. 47 drives the output shaft 5 to rotate, thereby driving the external load heating valve to rotate. When the valve rotates to the set angle, the resistance value changes due to the valve rotation, and the signal is fed back to the digital angle sensor, causing the generator to stop running. When the valve rotates to the fully open or fully closed limit, the limit switch causes the generator to stop running, thereby realizing the unrestricted modulation opening or closing action of the heating valve.

[0010] The advantages of this utility model are as follows: ① The actuator, through the design of different gear ratios, gradually reduces the speed of the gears and increases the torque, reducing the speed of the DC motor output from 8500-10400 rpm to about 10 rpm, while increasing the transmission ratio to over 4024, resulting in a 20-25% increase in torque compared to existing actuators, ensuring smooth opening and closing of the heating pipeline valves; ② The digital controller 6, through big data intelligent calculation, automatically controls the rotation angle of the output shaft, driving the external load heating pipeline valve to rotate, achieving a valve-free modulation effect; ③ According to the actual energy-saving effect statistics of using the electric actuator, it can save about 15% of energy; for a single user in a heating season, it can save 12-15% of costs, while reducing carbon dioxide emissions by 1.1-1.4 tons / user (120m2). If a medium-sized city with 1 million households uses this patented product, it can reduce carbon dioxide emissions by more than 1.2 million tons per year, which has both economic and social benefits, making it a proprietary technology that benefits the country and its people. Attached Figure Description

[0011] Figure 1 Perspective view of a throttle-modulated electric actuator for heating pipeline valves

[0012] Figure 2 Side view of the structure of a throttle-modulated electric actuator for heating pipeline valves Figure 1 11 Housing, 12 Housing panel, 13 Housing base plate, 14 Gear post, 15 Housing frame, 2 DC motor, 3 Shaft sleeve, 4 Reduction gear, 41 Main gear, 42 Driven gear 1, 43 Driven gear 2, 44 Driven gear 3, 45 Driven gear 4, 46 Driven gear 5, 47 Driven gear position gear, 5 Output shaft, 6 Digital controller, 7 Limit switch, 8 Fixing screws

[0013] Figure 3 Schematic diagram of the installation of a throttle-controlled electric actuator for heating pipeline valves Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1 , 2As shown, a throttleless modulation electric actuator for a heating pipeline valve includes a housing 1, a reduction gear 4, a DC motor 2, and a digital controller 6. The housing 1 includes a housing panel 11, a housing base plate 12, and a housing frame 13. The front of the housing panel 11 houses the DC motor 2, whose shaft is inserted into the housing through a through hole in the housing panel 11. A main gear 41 is mounted on the shaft of the DC motor 2. The housing panel 11 also has a stroke stop hole for stroke control of the gear post. A gear post 121 is mounted on the housing base plate 12 for mounting the reduction gear 4. The reduction gear 4 meshes with the main gear 41. The meshing sequence of the reduction gear 4 is: the main gear 41 meshes with the driven first gear 42, and the driven... Gear 42 engages with driven gear 43, driven gear 43 engages with driven gear 44, driven gear 44 engages with driven gear 45, driven gear 45 engages with driven gear 46, and driven gear 46 engages with driven gear 47. The housing base plate 12 is also provided with an output shaft through hole, and a bushing 3 is installed in the hole to fix the output shaft 5. One end of the output shaft 5 is designed with a tenon. The output shaft 5 passes through the housing panel 11. The hole on the digital controller 6 is fitted into the output shaft 5 and fixed to the front of the housing panel 11 with screws 8. The tenon end of the output shaft 5 is connected to the load valve connector. The housing frame 13 is placed on the housing base plate 12, and the housing panel 11 is covered and fixed with fixing screws 8 to form the housing.

[0016] like Figure 3 The electric actuator assembly shown is as follows: ① The DC motor 2 is installed on the front of the housing panel 11, and the shaft of the DC motor 2 is inserted into the housing through the through hole of the housing panel 11. The main gear 41 is installed on the shaft of the DC motor 2; ② On the gear post 121 provided on the bottom plate 12 of the housing, the reduction gears 4 are installed in sequence and meshed; the meshing sequence is as follows: the main gear 41 on the motor shaft of the DC motor 2 meshes with the driven gear 42, the driven gear 42 meshes with the driven gear 43, the driven gear 43 meshes with the driven gear 44, and so on. Driven gear 44 engages driven gear 45, driven gear 45 engages driven gear 46, driven gear 46 engages driven gear 47; the gear shift pin on driven gear 47 passes through the travel shift hole in housing panel 11; ③ The output shaft 5 is fitted into the hole on digital controller 6 and fixed to the front of housing panel 11 with screws; the tenon end of output shaft 5 is connected to the load valve connector; ④ Housing frame 13 is placed on housing base plate 12, housing panel 11 is covered and fixed with fixing screws 8 to form housing.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

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