Visualized leak-proof water seal device for vacuum break door

Abstract

The utility model relates to the technical field of steam turbine unit, and disclose a kind of visual anti-leakage water seal device for vacuum destruction door, including cabinet, further include: setting in the storage tank of cabinet, the water pump of the outside of the cabinet is provided with input end and output end is penetrated to the storage tank inside below in cabinet;The utility model is directly driven scraper to remove the impurities attached on the surface of filter screen by the cleaning assembly, especially the core structure consisting of driving sleeve and scraper, user does not need to remove and take out filter screen from storage tank, can, can effectively avoid external impurities or dust to float to filter screen surface, increase filter screen filtration burden, while driving scraper rotates and cleans filter screen, using guide rod cooperation and poking rod can also open and close sewage outlet automatically, overall operation is not only simple and intuitive, but also ensure the coherence and efficiency of cleaning process, greatly optimize the use experience of operation and maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, specifically a visual anti-leakage water seal device for a vacuum breaker door. Background Technology

[0002] A steam turbine generator is a generator driven by a steam turbine. Superheated steam generated by the boiler enters the steam turbine, expands and does work, causing the blades to rotate and drive the generator to generate electricity. The exhaust steam after doing work is sent back to the boiler for recycling through a condenser, circulating water pump, condensate pump, feedwater heating device, etc. In addition to condensing the exhaust steam of the steam turbine into water for reuse in the boiler, the condenser can also create and maintain a vacuum at the steam turbine exhaust point.

[0003] Reference publication number CN214251413U discloses a water seal device for adding a vacuum breaker valve to a steam turbine generator set condenser. The device includes a funnel, an annular water tank at the top of the inner side of the funnel, and water pumps on both sides of the inner side of the annular water tank. A water pipe A is connected to the output end of the water pumps, with one end of water pipe A connected to the annular water tank. A water pipe B is also connected to the output end of the water pumps, with one end of water pipe B extending to the bottom of the funnel. By adding a funnel to the condenser vacuum breaker valve, water is injected into the funnel after the vacuum breaker valve is closed. The presence of air bubbles in the water at the bottom of the funnel can be observed through a detection window, thus detecting whether the vacuum breaker valve is tightly closed. This allows for appropriate intervention, preventing the vacuum breaker valve from failing to close properly and affecting the steam turbine generator set's operation under optimal conditions. Furthermore, the device is simple to operate and convenient to use.

[0004] Although the above-mentioned device is equipped with a filter screen to filter the extracted circulating water, when the filter screen needs to be cleaned, it must be pulled out of the annular water tank as a whole using a pull rod. Therefore, a series of steps such as disassembly, cleaning, and reassembly are required, which is time-consuming and labor-intensive and difficult to meet the requirements of efficient operation and maintenance in industrial sites. Moreover, during the process of opening the water tank, removing and reinstalling the filter screen, external contaminants can easily enter the water tank and contaminate the test water, which in turn affects the accuracy of subsequent tests. Utility Model Content

[0005] The purpose of this invention is to provide a visual anti-leakage water seal device for vacuum break doors, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual anti-leakage water seal device for a vacuum breaker door, comprising a housing, and further comprising: a storage box disposed in the housing, wherein a water pump with an input end penetrating to the lower part of the housing and an output end penetrating into the storage box is disposed on the outside of the housing, and a filter screen is disposed in the storage box;

[0007] A cleaning component, wherein the cleaning component is disposed within a storage box;

[0008] The cleaning component includes a drive sleeve disposed on the inner wall of the storage box. A scraper is fixedly connected to the surface of the drive sleeve, and a pressing plate is disposed on one side of the scraper. The pressing plate is fixed to the inner wall of the box.

[0009] Preferably, the cleaning assembly further includes a guide rod disposed on the inner wall of the housing. The guide rod is generally spiral-shaped, and a toggle rod is disposed below the guide rod. The toggle rod is fixedly connected to the drive sleeve on the side near the drive sleeve.

[0010] Preferably, one side of the box body is designed with an opening, and the cleaning component also includes a movable plate disposed inside the box body and at the opening. The movable plate is used to cover the opening of the box body, and the upper end of the movable plate is fixedly connected to the guide rod.

[0011] Preferably, the cleaning assembly further includes a groove formed on the inner wall of the box and located above the opening, and the movable plate is embedded in the groove on the side near the groove.

[0012] Preferably, both the scraper and the extrusion plate are rectangular in design, and they are initially in a fitted state.

[0013] Preferably, the output end of the water pump extends into the housing and is connected to a nozzle, which is located inside the storage tank and the surface of the nozzle is fixedly connected to the inner wall of the storage tank.

[0014] Preferably, the storage box has an overall ring-shaped design, and a valve is provided at the bottom of the storage box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through its cleaning components, particularly the core structure consisting of a drive sleeve and a scraper, allows users to directly drive the scraper to remove impurities adhering to the filter screen surface without removing the filter screen from the storage box. This effectively prevents external impurities or dust from drifting onto the filter screen surface and increasing the filter's filtration burden. Furthermore, while the scraper is rotating to clean the filter screen, the drain port can be automatically opened and closed using a guide rod and a lever. The overall operation is not only simple and intuitive but also ensures a continuous and efficient cleaning process, greatly optimizing the user experience for maintenance personnel. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the visual anti-leakage water seal device for a vacuum breaker door provided by this utility model;

[0018] Figure 2A schematic diagram of the internal structure of the box provided by this utility model;

[0019] Figure 3 A disassembled schematic diagram of the internal structure of the box provided by this utility model;

[0020] Figure 4 A schematic diagram of the guide rod and movable plate inside the box provided by this utility model.

[0021] In the diagram: 100, housing; 110, water pump; 120, filter screen; 130, storage tank; 140, nozzle; 200, cleaning assembly; 210, drive sleeve; 211, extrusion plate; 212, scraper; 220, actuating lever; 221, guide rod; 222, chute; 223, movable plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 - Figure 4 As shown, a visual anti-leakage water seal device for a vacuum breaker door includes a housing 100 and a storage tank 130 disposed in the housing 100. A water pump 110 with its input end penetrating to the lower part of the housing 100 and its output end penetrating into the storage tank 130 is disposed on the outside of the housing 100. A filter screen 120 is disposed in the storage tank 130.

[0024] In actual use, the personnel first connect the box 100 to the vacuum breaking door through an external pipe, then inject water into the storage box 130, and then open the valve of the storage box 130 to allow the water to flow to the bottom of the box 100. At this time, the personnel only need to check whether there are air bubbles caused by leakage in the water in the box 100 to know whether the vacuum breaking door is leaking.

[0025] The output end of the water pump 110 extends through the housing 100 and is connected to a nozzle 140. The nozzle 140 is located inside the storage tank 130, and the surface of the nozzle 140 is fixedly connected to the inner wall of the storage tank 130.

[0026] After the test is completed, the water pump 110 is started. Its input end draws back the test water that has been used in the tank 100. The output end of the water pump 110 pumps this water into the annular storage tank 130 through the nozzle 140. During the process of entering the storage tank 130, the water flows through the filter screen 120. At this time, the core function of the filter screen 120 is to filter out impurities such as dust and rust that may be brought in during the test, so as to ensure the cleanliness of the water. The filtered clean water is stored in the annular storage tank 130 for the next test.

[0027] It should be noted that both the box 100 and the storage box 130 are made of acrylic, which provides a visual viewing experience for personnel. The joints are sealed with sealant to effectively prevent the testing operation from being affected by insufficient sealing.

[0028] The storage box 130 has an overall ring-shaped design, and a valve is installed at the bottom of the storage box 130;

[0029] Cleanup component 200 is located inside storage box 130;

[0030] The cleaning component 200 includes a drive sleeve 210 disposed on the inner wall of the storage box 130. A scraper 212 is fixedly connected to the surface of the drive sleeve 210. A pressing plate 211 is disposed on one side of the scraper 212 and is fixed to the inner wall of the box 100.

[0031] After the filter screen 120 filters the circulating water multiple times, impurities will remain on its surface. When personnel need to clean the filter screen 120, they should first hold the drive sleeve 210 and rotate it counterclockwise. At this time, the drive sleeve 210 will drive the scraper 212 to rotate on the surface of the filter screen 120 to scrape away and clean the impurities and dust on the surface of the filter screen 120, thus ensuring the filtration effect of the filter screen 120.

[0032] Both the scraper 212 and the extrusion plate 211 are rectangular in design and are initially in a close-fitting state.

[0033] The above design is sufficient to demonstrate that when the scraper 212 starts to move, that is, scraping starts from the beginning, it can provide a thorough cleaning of the filter screen 120.

[0034] The cleaning assembly 200 also includes a guide rod 221 disposed on the inner wall of the housing 100. The guide rod 221 has an overall spiral design. A toggle rod 220 is disposed below the guide rod 221. The toggle rod 220 is fixedly connected to the drive sleeve 210 on the side near the drive sleeve 210. One side of the housing 100 has an opening design. The cleaning assembly 200 also includes a movable plate 223 disposed inside the housing 100 and located at the opening. The movable plate 223 is used to cover the opening of the housing 100. The upper end of the movable plate 223 is fixedly connected to the guide rod 221. The cleaning assembly 200 also includes a slide groove 222 opened on the inner wall of the housing 100 and located above the opening. The side of the movable plate 223 near the slide groove 222 is embedded in the slide groove 222.

[0035] When the drive sleeve 210 rotates, the actuating rod 220 on its surface will follow it in a circular motion. When the actuating rod 220 rotates from the initial position to 270°, it will contact the guide rod 221. The guide rod 221 is designed with an overall inclination. Therefore, when the actuating rod 220 contacts it, the guide rod 221 will be supported by the horizontally rotating actuating rod 220 and rise vertically, thereby driving the movable plate 223 to move upward and remove the obstruction of the opening. Until the drive sleeve 210 rotates to nearly 360°, the scraper 212 and the extrusion plate 211 will be relatively close, and the scraped impurities can be squeezed out from the opening to achieve the self-cleaning effect.

[0036] After the above counterclockwise rotation cleaning, the personnel only need to rotate clockwise to move the scraper 212 back to the initial position;

[0037] Working principle: During the testing cycle, the housing 100 is sealed to the vacuum breaking door through an external pipe. Clean water in the storage tank 130 is injected into the lower part of the housing 100 (the connection between the housing 100 and the external pipe) to form a water seal. If the vacuum breaking door is tightly sealed, the water seal level remains stable. If there is a leak, the vacuum in the condenser will draw in air, generating continuous bubbles in the water, thus achieving visual leak detection. After the test is completed, the water pump 110 is started to pump back the used water in the observation window and pump it into the annular storage tank 130. When the water flows through the filter screen 120, the impurities it carries are effectively filtered out, and the clean water is stored in the tank for the next use, thus forming a complete water circulation filtration loop. During the cleaning cycle, when impurities adhere to the filter screen 120 due to multiple filtrations, the user rotates the housing 100 to drive the sleeve 210 and the scraper 212 to rotate on the surface of the filter screen 120. The scraper 212 scrapes off the impurities attached to the filter screen 120. Simultaneously, through the contact between the toggle lever 220 and the guide rod 221, the rotational motion of the drive sleeve 210 is converted into the vertical lifting motion of the movable plate 223, thereby automatically opening the drain port on the side of the housing 100. Accumulated impurities can be completely discharged through the drain port. After cleaning, rotating the handwheel in the opposite direction will reset the scraper 212, and the movable plate 223 will slide down under the drive of the guide rod 221, closing the drain port again. The entire cleaning process does not require disassembly of any parts, achieving online, efficient, and disassembly-free maintenance of the filter 120.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual leak-proof water seal device for a vacuum breaching door, comprising a housing (100), characterized in that, Also includes: A storage box (130) is provided in the housing (100). A water pump (110) with its input end extending into the lower part of the housing (100) and its output end extending into the storage box (130) is provided on the outside of the housing (100). A filter screen (120) is provided in the storage box (130). A cleaning component (200) is disposed within a storage box (130); The cleaning component (200) includes a drive sleeve (210) disposed on the inner wall of the storage box (130). A scraper (212) is fixedly connected to the surface of the drive sleeve (210). A pressing plate (211) is disposed on one side of the scraper (212). The pressing plate (211) is fixed to the inner wall of the box body (100).

2. The visual anti-leakage water seal device for a vacuum breaching door according to claim 1, characterized in that: The cleaning assembly (200) also includes a guide rod (221) disposed on the inner wall of the housing (100). The guide rod (221) is designed in a spiral shape. A toggle rod (220) is disposed below the guide rod (221). The toggle rod (220) is fixedly connected to the drive sleeve (210) on the side near the drive sleeve (210).

3. The visual anti-leakage water seal device for a vacuum breaker door according to claim 1, characterized in that: The box (100) has an opening on one side. The cleaning assembly (200) also includes a movable plate (223) located inside the box (100) and at the opening. The movable plate (223) is used to cover the opening of the box (100). The upper end of the movable plate (223) is fixedly connected to the guide rod (221).

4. The visual anti-leakage water seal device for a vacuum breaker door according to claim 3, characterized in that: The cleaning assembly (200) also includes a groove (222) formed on the inner wall of the housing (100) and located above the opening, and the movable plate (223) is embedded in the groove (222) on the side near the groove (222).

5. A visual anti-leakage water seal device for a vacuum breaching door according to claim 1, characterized in that: The scraper (212) and the extrusion plate (211) are both rectangular in design and are initially in a close fit.

6. A visual anti-leakage water seal device for a vacuum breaching door according to claim 1, characterized in that: The output end of the water pump (110) extends through the housing (100) and is connected to a nozzle (140). The nozzle (140) is located inside the storage tank (130), and the surface of the nozzle (140) is fixedly connected to the inner wall of the storage tank (130).

7. A visual anti-leakage water seal device for a vacuum breaching door according to claim 1, characterized in that: The storage box (130) is designed in a ring shape, and a valve is provided at the bottom of the storage box (130).

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