Inverted bucket structure and Venturi structure combined steam trap

Abstract

The embodiment of the utility model provides an inverted bucket structure and Venturi structure combined type steam trap which comprises an inverted bucket, a valve body, an exhaust hole and a cover plate, the inverted bucket is installed in the valve body, the exhaust hole is formed in the upper portion of the valve body, the cover plate is fixedly installed on the valve body, and the inverted bucket structure and Venturi structure combined type steam trap further comprises a Venturi channel inserting piece. The Venturi channel plug-in is installed on the inner side of a steam channel inlet of the steam trap. According to the inverted bucket structure and Venturi structure combined type steam trap, after the two structures are coupled, the two structures can complement each other, wide load adjustment can be achieved, it is guaranteed that no gas block or gas lock exists, the gas leakage rate is low, and the pressure and temperature of a continuous condensate drainage system are stable; meanwhile, a steam-water mixture is subjected to temperature and pressure reduction through the Venturi channel to improve the working environment of a rear-end inverted bucket area, and the working life is prolonged.

Description

Technical Field

[0001] This application relates to the field of steam trap technology, specifically a steam trap combining an inverted bucket structure and a Venturi structure. Background Technology

[0002] The inverted bucket structure steam trap has the advantage of a wide flow regulation range, but the disadvantage is that it will carry steam out during the exhaust process and the intermittent exhaust can easily cause temperature and pressure fluctuations in the steam system, which can easily lead to air blockage and air lock. In addition, the valve core and valve disc of the inverted bucket structure steam trap are frequently operated and are continuously subjected to high temperature and high pressure steam scouring and erosion, which makes them very easy to wear and cause steam leakage.

[0003] Venturi steam traps have the advantages of low leakage rate, steam saving and durability, and are conducive to eliminating air blockage and air lock, continuous condensation discharge, and stable temperature and pressure of steam system. However, the disadvantage is that the flow rate adjustment range is narrow, and the discharge may be insufficient or leak steam when deviating from the design conditions.

[0004] Therefore, the above-mentioned steam traps need to be improved to achieve a wide flow regulation range, ensure no air blockage or air lock, low air leakage rate, and stable temperature and pressure of the continuous condensate drainage system. Summary of the Invention

[0005] To address one of the aforementioned technical deficiencies, this application provides a combined inverted bucket structure and Venturi structure drain condensate.

[0006] According to a first aspect of the embodiments of this application, a combined inverted bucket structure and Venturi structure steam trap is provided, including an inverted bucket, a valve body, a vent, and a cover plate. The inverted bucket is installed inside the valve body, the upper part of the valve body is provided with a vent, and the cover plate is fixedly installed on the valve body. It also includes a Venturi channel insert, which is installed inside the steam channel inlet of the steam trap.

[0007] Furthermore, the Venturi channel insert is threadedly connected to the steam channel inlet.

[0008] Furthermore, the Venturi channel plug-in has a gradually narrowing and expanding channel extending laterally.

[0009] Furthermore, a filter screen is installed at the inlet of the steam passage.

[0010] Furthermore, a first flange and a second flange are installed at both ends of the condensate drain.

[0011] The combined inverted bucket structure and Venturi structure steam trap provided in this application embodiment can leverage the advantages of both structures to compensate for each other's shortcomings. It can achieve wide load adjustment, ensure no air blockage or steam lock, have a low air leakage rate, and maintain stable pressure and temperature in the continuous condensate drainage system. At the same time, the steam-water mixture improves the working environment of the inverted bucket area after being cooled and depressurized through the Venturi channel, thus extending its service life. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a cross-sectional schematic diagram of the combined inverted bucket structure and Venturi structure drain condensate provided in the embodiments of this application.

[0014] 1. Venturi channel insert; 2. Inverted bucket; 3. Valve body; 4. Vent port; 5. Cover plate; 6. Filter screen; 7. First flange; 8. Second flange. Detailed Implementation

[0015] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0016] This application provides a combined inverted bucket structure and Venturi structure steam trap, including an inverted bucket 2, a valve body 3, an exhaust port 4, and a cover plate 5. The inverted bucket 2 is installed inside the valve body 3, the valve body 3 has an exhaust port 4 on its upper part, and the cover plate 5 is fixedly installed on the valve body 3. It also includes a Venturi channel plug 1, which is installed inside the steam channel inlet of the steam trap.

[0017] In this embodiment, the Venturi channel insert 1 is threadedly connected to the steam channel inlet, which facilitates the replacement of the Venturi channel insert 1.

[0018] In this embodiment, the Venturi channel plug-in 1 has a gradually narrowing and expanding channel that runs horizontally through it.

[0019] In this embodiment, a filter screen 6 is installed at the inlet of the steam channel to filter steam and condensate, ensuring the overall filtration effect.

[0020] In this embodiment, a first flange 7 and a second flange 8 are installed at both ends of the steam trap, and the steam trap is installed on the pipeline through the first flange 7 and the second flange 8.

[0021] The working principle of the combined inverted bucket structure and Venturi structure steam trap in this application is as follows:

[0022] Based on the principle of Venturi drainage and steam blocking, the high-temperature condensate will flash in the expansion section at the rear end to form back pressure, which locks the steam at the front end of the Venturi channel insert, thereby achieving drainage and steam blocking.

[0023] Based on the existing inverted bucket steam trap, an insert with a Venturi channel is added to the steam passage inlet. Condensate is drained through the Venturi channel in the insert and then further drained through the inverted bucket.

[0024] When the condensation load is normal, steam-water separation can be achieved using the Venturi channel. When the condensate load is low, some steam reaches the rear inverted bucket area through the Venturi channel, where the inverted bucket structure further blocks steam and discharges condensate.

[0025] The venturi channel plug-in in this application can be used to calculate the structural dimensions based on process parameters using Ansysfluent simulation software.

[0026] In summary, this application employs a coupling of a Venturi structure and an inverted bucket structure.

[0027] 1. Solve the problem of air leakage caused by the poor flow regulation capability of Venturi steam traps and large deviations from the design value.

[0028] 2. This addresses the issues of high leakage rate in the inverted bucket structure, which easily leads to air blockage and intermittent emissions affecting system parameter stability. Additionally, the pre-positioned Venturi channel can significantly reduce the temperature and pressure of the gas-water mixture, improving the working environment in the rear inverted bucket area and extending the service life of the inverted bucket structure.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0033] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A combination inverted bucket and venturi trap, comprising an inverted bucket, a valve body, an exhaust hole and a cover plate, the inverted bucket is installed inside the valve body, the upper part of the valve body is provided with an exhaust hole, and the cover plate is fixedly installed on the valve body, characterized in that, A Venturi channel insert is installed inside the steam channel inlet of the trap.

2. The inverted bucket and venturi combination trap according to claim 1, wherein, The Venturi channel insert is screwed with the steam channel inlet.

3. The inverted bucket and venturi combination trap according to claim 2, wherein, The Venturi channel insert is transversely provided with a tapered channel.

4. The inverted bucket and venturi combination trap according to claim 3, wherein, A filter screen is installed at the steam channel inlet.

5. The inverted bucket and venturi combination trap according to claim 4, wherein, First and second flanges are installed at both ends of the trap.

Images