Electric drain door of heat supply pipeline

Abstract

The utility model discloses an electric drain valve for a heat supply pipeline, which comprises a drain valve body, a valve cover is fixedly mounted at the top of the drain valve body, a filter screen is fixedly mounted at the bottom of the valve cover, a cleaning component is arranged on the filter screen, a driving mechanism is arranged between the cleaning component and the valve cover, and the valve cover is fixedly mounted on the valve cover. A drain outlet is fixedly formed in the bottom of the drain valve body; when the cleaning device is used for cleaning the filter screen of the drain valve body, the driving mechanism drives the cleaning assembly to clean the filter screen, the cleaning assembly rotates and lifts on the filter screen to scrape impurities on the filter screen, and after the impurities are scraped from the lower portion of the filter screen, the impurities are discharged out of the drain valve body through the drain outlet, so that cleaning of the filter screen is completed. According to the device, the filter screen can be quickly cleaned, and the cleaning efficiency of the filter screen in the drain valve body is high.

Description

Technical Field

[0001] The utility model relates to the technical field of drain valves, in particular to an electric drain valve for a heating pipeline. Background Art

[0002] As a peak-shaving unit, the operation of the waste heat boiler (HRSG) is constrained by regional power grid dispatch. When the unit is not operating, the plant's heating network is supplied by industrial gas boilers, resulting in relatively high gas consumption. When the unit is operating, steam is supplied to the plant's heating network by the unit, resulting in lower gas consumption. Currently, the switching process requires personnel to be on-site to open and close valves to warm up the backup pipeline. By adding electric drain valves at the beginning of the heating pipelines supplying the gas source boilers and optimizing the control logic for switching the plant's heating pipelines, we can achieve automatic switching of the heating system's gas source.

[0003] An electric steam trap is an automatic valve that uses the energy of the medium to discharge unwanted gases, liquids, or solid particles. Its advantages include quick action, reliable performance, compact size, ease of operation, and long life, making it widely used in various industrial fields.

[0004] As an important industrial valve, electric steam traps play a key role in multiple fields. Their unique operating principle and numerous advantages make them an indispensable part of industrial automation and piping systems. With the continuous advancement of technology and the ever-changing industrial needs, electric steam traps will continue to be improved and optimized to adapt to more complex and demanding working environments.

[0005] Existing electric steam traps can effectively remove impurities through the filter during use to prevent the electric steam trap from clogging. However, after long-term use, a certain amount of impurities will accumulate on the filter of the steam trap. The electric steam trap will regularly replace and clean the filter to ensure the filtering effect of the filter. However, it is inconvenient to regularly replace the filter inside the steam trap. Utility Model Content

[0006] The object of the present invention is to provide an electric drain valve for a heating pipe to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an electric drain valve for a heating pipe, comprising a drain valve body, a valve cover fixedly mounted on the top of the drain valve body, a filter fixedly mounted on the bottom of the valve cover, a cleaning assembly provided on the filter, a driving mechanism provided between the cleaning assembly and the valve cover, and a sewage outlet fixedly mounted on the bottom of the drain valve body.

[0008] As a further description of the above technical solution: the cleaning assembly includes multiple scrapers and two scraper rings, the multiple scrapers are fixedly installed between the two scraper rings, the multiple scrapers are in contact with the side wall of the filter, and the scraper ring is in contact with the side wall of the filter.

[0009] As a further description of the above technical solution: the driving mechanism includes a connecting frame, the connecting frame is fixedly installed on the bottom of the filter, and a first ball screw is fixedly installed on the scraper ring at the bottom of the cleaning assembly. The first ball screw is threadedly connected to the connecting frame, and the top of the first ball screw is rotatably connected to a pressure rod, and the top end of the pressure rod passes through the top of the valve cover and is slidably adapted to the valve cover.

[0010] As a further description of the above technical solution: a sealing member is provided between the pressure rod and the valve cover.

[0011] As a further description of the above technical solution: a float is provided inside the steam trap valve body, the float is adapted to the bottom of the steam trap valve body, and a drain port is fixedly installed at the bottom of the steam trap valve body.

[0012] As a further description of the above technical solution: a closed ring is fixedly installed inside the valve body of the steam trap, and the inner wall of the closed ring is in contact with the outer wall of the scraper ring at the bottom of the cleaning component.

[0013] As a further description of the above technical solution: a handle is provided on the top of the pressure rod, connecting seats are fixedly installed on both sides of the top of the valve cover, support frames are rotatably installed on the two connecting seats, and the two support frames support the handle.

[0014] As a further description of the above technical solution: a mounting block is fixedly installed on the top of the valve cover, and a second ball screw is rotatably installed inside the mounting block. The thread directions of the two ends of the second ball screw are opposite, and sliders are slidably installed on both ends of the interior of the mounting block. The two sliders are respectively threaded at the two ends of the second ball screw, and racks are fixedly installed on the side walls of the two sliders. Gears are provided on the tops of the two racks, and the two gears are respectively fixedly connected to the two support frames. A turning handle is rotatably installed on the mounting block, and the turning handle is fixedly connected to one end of the second ball screw.

[0015] The utility model provides an electric drain valve for heating pipes. It has the following beneficial effects: when cleaning the filter screen of the drain valve body, a driving mechanism drives a cleaning assembly to clean the filter screen. The cleaning assembly rotates and rises on the filter screen to scrape impurities on the filter screen. After the impurities are scraped from under the filter screen, they are discharged from the drain valve body through the sewage outlet, completing the cleaning of the filter screen. This device can quickly clean the filter screen and has a high cleaning efficiency for the filter screen in the drain valve body.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0017] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an electric drain door for a heating pipe proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the filter screen and cleaning component of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional expanded structure of the filter screen and cleaning component of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the support mechanism of the utility model.

[0023] Legend:

[0024] 1. Steam trap body; 2. Valve cover; 3. Filter; 4. Cleaning assembly; 401. Scraper; 402. Scraper ring; 5. First ball screw; 6. Pressure rod; 7. Connecting frame; 8. Closing ring; 801. Ramp; 9. Seal; 10. Handle; 11. Float; 12. Drain outlet; 13. Sewage outlet; 14. Support frame; 15. Connecting seat; 16. Second ball screw; 17. Turning handle; 18. Slider; 19. Gear; 20. Rack; 21. Mounting block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-5When the filter screen 3 of the drain valve body 1 is cleaned, the cleaning component 4 is driven by the driving mechanism to clean the filter screen 3, and the cleaning component 4 rotates and rises on the filter screen 3 to scrape off the impurities on the filter screen 3. After the impurities are scraped from under the filter screen 3, the impurities are discharged from the drain valve body 1 through the drain outlet 13, completing the cleaning of the filter screen 3. The device can quickly clean the filter screen 3 and has a high cleaning efficiency for the filter screen 3 in the drain valve body 1.

[0027] As the preferred technical solution of this embodiment, the cleaning component 4 includes multiple scrapers 401 and two scraper rings 402. The multiple scrapers 401 are fixedly installed between the two scraper rings 402. The multiple scrapers 401 are in contact with the side wall of the filter 3, and the scraper ring 402 is in contact with the side wall of the filter 3. When cleaning the filter 3, when the scraper ring 402 and the scraper 401 are in contact with the filter 3, impurities on the filter 3 can be scraped off by rotating or lifting.

[0028] As the preferred technical solution of this embodiment, the driving mechanism includes a connecting frame 7, which is fixedly mounted on the bottom of the filter 3, and a first ball screw 5 is fixedly mounted on the scraper ring 402 at the bottom of the cleaning assembly 4, and the first ball screw 5 is threadedly connected to the connecting frame 7. The top of the first ball screw 5 is rotatably connected to a pressure rod 6, and the top end of the pressure rod 6 passes through the top of the valve cover 2 and is slidably adapted to the valve cover 2; when the filter 3 is cleaned by the cleaning assembly 4, the pressure rod 6 is pressed down, and the pressure rod 6 drives the first ball screw 5 to move downward, and threadedly transmits the pressure with the connecting frame 7 on the filter 3, so that the first ball screw 5 drives the cleaning assembly 4 to rotate, and cooperates with the top scraper ring 402 and the multiple scrapers 401 on the side to lift and rotate to clean the filter 3.

[0029] As a preferred technical solution of this embodiment, a sealing member 9 is provided between the pressure rod 6 and the valve cover 2 ; the sealing member 9 increases the sealing performance between the pressure rod 6 and the valve cover 2 .

[0030] As the preferred technical solution of this embodiment, a float 11 is provided inside the steam trap valve body 1, and the float 11 is adapted to the bottom of the steam trap valve body 1. A drain port 12 is fixedly installed at the bottom of the steam trap valve body 1; when the steam trap valve body 1 is draining condensed cold water, the condensed water enters the bottom of the steam trap valve body 1, lifts the float 11, and the condensed water is discharged through the drain port 12.

[0031] As a preferred technical solution of this embodiment, a closed ring 8 is fixedly installed inside the steam trap valve body 1, and the inner wall of the closed ring 8 contacts the outer wall of the scraper ring 402 at the bottom of the cleaning assembly 4; the closed ring 8 contacts the outer wall of the scraper ring 402 at the bottom to separate the steam trap valve body 1, thereby preventing impurities on the filter screen 3 from entering the drain port 12 when discharging condensate, and by setting the top of the closed ring 8 into a slope 801, impurities are prevented from accumulating on the top of the closed ring 8.

[0032] As the preferred technical solution of this embodiment, a handle 10 is provided on the top of the pressure rod 6, and connecting seats 15 are fixedly installed on both sides of the top of the valve cover 2. Support frames 14 are rotatably installed on the two connecting seats 15, and the two support frames 14 support the handle 10; the handle 10 is supported and limited by the support frames 14, and the position of the pressure rod 6 is locked.

[0033] As a preferred technical solution of this embodiment, a mounting block 21 is fixedly installed on the top of the valve cover 2, and a second ball screw 16 is rotatably installed inside the mounting block 21. The thread directions of the two ends of the second ball screw 16 are opposite, and sliders 18 are slidably installed on both ends of the interior of the mounting block 21. The two sliders 18 are respectively threaded at the two ends of the second ball screw 16, and racks 20 are fixedly installed on the side walls of the two sliders 18. Gears 19 are provided on the tops of the two racks 20, and the two gears 19 are respectively fixedly connected to the two support frames 14. A turning handle 17 is rotatably installed on the mounting block 21, and the turning handle 17 is fixedly connected to one end of the second ball screw 16; when the pressure rod 6 and the handle 10 are unlocked, the second ball screw 16 is driven to rotate by rotating the turning handle 17, and the slide rod is driven to move through the thread transmission, so that the rack 20 drives the support frame 14 to rotate through the gear 19, thereby completing the support of the handle 10 or separating from the handle 10.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric drain valve for a heating pipe, comprising a drain valve body (1), characterized in that: A valve cover (2) is fixedly mounted on the top of the steam trap valve body (1), a filter screen (3) is fixedly mounted on the bottom of the valve cover (2), a cleaning assembly (4) is provided on the filter screen (3), a driving mechanism is provided between the cleaning assembly (4) and the valve cover (2), and a sewage outlet (13) is fixedly mounted on the bottom of the steam trap valve body (1); The cleaning assembly (4) comprises a plurality of scrapers (401) and two scraper rings (402), wherein the plurality of scrapers (401) are fixedly mounted between the two scraper rings (402), the plurality of scrapers (401) are in contact with the side wall of the filter screen (3), and the scraper rings (402) are in contact with the side wall of the filter screen (3); The driving mechanism includes a connecting frame (7), the connecting frame (7) is fixedly mounted on the bottom of the filter (3), a first ball screw (5) is fixedly mounted on the scraper ring (402) at the bottom of the cleaning assembly (4), the first ball screw (5) is threadedly connected to the connecting frame (7), the top of the first ball screw (5) is rotatably connected to a pressure rod (6), and the top end of the pressure rod (6) passes through the top of the valve cover (2) and is slidably adapted to the valve cover (2).

2. The electric drain door for heating pipes according to claim 1, characterized in that: A sealing member (9) is provided between the pressure rod (6) and the valve cover (2).

3. The electric drain door for heating pipe according to claim 2, characterized in that: A float (11) is provided inside the steam trap valve body (1), and the float (11) is adapted to the bottom of the steam trap valve body (1). A drain outlet (12) is fixedly installed at the bottom of the steam trap valve body (1).

4. The electric drain door for heating pipes according to claim 3, characterized in that: A closed ring (8) is fixedly installed inside the steam trap valve body (1), and the inner wall of the closed ring (8) contacts the outer wall of the scraper ring (402) at the bottom of the cleaning component (4).

5. The electric drain door for heating pipe according to claim 4, characterized in that: A handle (10) is provided on the top of the pressure rod (6), and connecting seats (15) are fixedly installed on both sides of the top of the valve cover (2). Support frames (14) are rotatably installed on the two connecting seats (15), and the two support frames (14) support the handle (10).

6. The electric drain door for heating pipes according to claim 5, characterized in that: A mounting block (21) is fixedly mounted on the top of the valve cover (2), and a second ball screw (16) is rotatably mounted inside the mounting block (21). The thread directions of the two ends of the second ball screw (16) are opposite. Sliders (18) are slidably mounted on both ends of the mounting block (21), and the two slides (18) are respectively threadedly connected to the two ends of the second ball screw (16). Racks (20) are fixedly mounted on the side walls of the two slides (18), and gears (19) are provided on the tops of the two racks (20). The two gears (19) are respectively fixedly connected to the two support frames (14). A turning handle (17) is rotatably mounted on the mounting block (21), and the turning handle (17) is fixedly connected to one end of the second ball screw (16).

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