Liquid level meter protection device for boiler

Abstract

The utility model relates to a liquid level meter protection device for a boiler, the protection device is installed between the boiler and a liquid level meter and is a whole barrel, the barrel is composed of a hollow barrel body, an upper cover and a lower cover, the upper cover and the lower cover are used for covering the barrel body, and sealing rings are installed between the upper cover and the barrel body and between the lower cover and the barrel body to prevent internal water from flowing out. A plurality of through holes are further formed in the barrel body, connecting flanges are installed on the through holes and connected with a boiler and a liquid level meter on the two sides, a baffle is further arranged in the barrel body, and the upper end and the lower end of the baffle are inserted into grooves formed in the upper cover and the lower cover respectively to be fixed. The left side and the right side of the baffle are fixedly welded to the inner wall of the barrel body, and water through holes are formed in the baffle. The utility model has the advantages of simple and reasonable structure, practicability, convenience and the like.

Description

Technical Field

[0001] This utility model belongs to the field of water level control and relates to a water level gauge protection device for boilers. Background Technology

[0002] Boilers are indispensable equipment in the industrial field, and their importance is self-evident. Boiler shutdowns can affect the economic benefits of a production line, a factory, or even an entire enterprise. However, unlike other equipment that can be stopped for maintenance at any time, ensuring the stable and long-term operation of boilers is crucial. For stable boiler operation, a stable and reliable liquid level is very important. Due to the high temperature and pressure characteristics of boilers, coupled with fluctuating water levels, level gauges and other water level display devices frequently malfunction, leading to boiler malfunctions. Therefore, maintaining a stable water level is paramount. Currently, many boilers only have a directly installed level gauge or a balance container installed before the level gauge to protect it.

[0003] Because the boiler continuously replenishes water and generates steam, the water inside will constantly boil and slosh around. In addition, the changes at the steam consumption end make the boiler pressure unstable. If a level gauge is installed directly, it will not only cause large fluctuations in the liquid level inside the level gauge, resulting in inaccurate readings, but the fluctuating liquid surface may also cause the level gauge to leak or even break due to impacts on the level gauge sight glass, causing a safety accident.

[0004] Balance containers are mainly used in conjunction with differential pressure transmitters to control liquid levels. They are somewhat redundant in situations where differential pressure control is not required. Also, boilers often require two level gauges, but the liquid level control system only needs one. In such cases, it is not suitable to equip both level gauges with balance containers. Furthermore, although balance containers can play a role to some extent, their structure is relatively complex, and their manufacturing cost and difficulty are also relatively high.

[0005] Therefore, an energy-saving electrical control system for air separation equipment is designed to overcome the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an energy-saving electrical control system for air separation equipment that is simple in structure, reasonable, practical, safe and reliable.

[0007] This utility model is achieved through the following technical solution: a boiler level gauge protection device, which is installed between the boiler and the level gauge and is a single cylindrical body. The cylindrical body consists of a hollow cylindrical body and an upper cover and a lower cover for covering the cylindrical body. Sealing rings are installed between the upper cover and the lower cover and the cylindrical body to prevent water from flowing out. The cylindrical body also has multiple through holes, and connecting flanges are installed on the multiple through holes. The connecting flanges connect the boiler and the level gauge on both sides. A baffle is also arranged inside the cylindrical body. The upper and lower ends of the baffle are respectively inserted into the grooves arranged in the upper cover and the lower cover for fixation. The left and right sides are welded to the inner wall of the cylindrical body and water passage holes are provided on the baffle.

[0008] Preferably, the baffle is arranged inside the hollow cylindrical body, dividing the cylindrical body into two chambers, left and right, and the connecting flange is installed on the two chambers respectively, with one flange arranged at the top and one at the bottom.

[0009] Preferably, the upper and lower covers are the same size as the diameter of the cylinder body, and a protruding connector is provided between the upper and lower covers. The connector is threaded, and a corresponding threaded wall is also provided on the inner wall of the cylinder body. The upper and lower covers are screwed together with the cylinder body to form a whole. A sealing ring is installed at the connection between the screwed upper and lower covers and the cylinder body to achieve double sealing.

[0010] Preferably, the water passage consists of a square water passage located at the top and bottom center, and elongated water passages located on the left and right sides.

[0011] Preferably, the lower cover is also provided with a threaded through hole or a threaded connector, which can be connected to a sludge pipe for sewage discharge.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The energy-saving electrical control system of the air separation equipment designed in this utility model can be welded to the baffle and the cylinder body section in order to isolate the impact and achieve the purpose of stabilizing the liquid level gauge. The remaining welding needs to be full welding.

[0014] 2. This utility model has a simple structure, is easy to manufacture, and has low cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0017] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1-2 As shown, a boiler level gauge protection device is installed between the boiler and the level gauge. The device is a single cylindrical body, consisting of a hollow cylindrical body 1 and an upper cover 2 and a lower cover 3 for covering the cylindrical body 1. Sealing rings 8 are installed between the upper cover 2 and the lower cover 3 and the cylindrical body 1 to prevent water from flowing out. The cylindrical body 1 also has multiple through holes 12, and connecting flanges 4 are installed on the multiple through holes 12. The connecting flanges 4 connect the boiler and the level gauge on both sides. A baffle 5 is also arranged inside the cylindrical body 1. The upper and lower ends of the baffle 5 are inserted into the grooves arranged in the upper cover 2 and the lower cover 3 respectively for fixation. The left and right sides are welded to the inner wall of the cylindrical body 1, and water passage holes 6 are opened on the baffle 5.

[0020] The inner diameter of the cylinder of this utility model is less than 150mm. The length of the cylinder and the size, spacing and direction of the connecting pipes can be determined by the actual level gauge flange and assembly position, without any limitation.

[0021] The baffle 5 is arranged inside the hollow cylindrical body 1, dividing the cylindrical body 1 into two chambers, left and right. The connecting flange 4 is installed on the two chambers respectively, with one flange on each side. The upper cover 2 and the lower cover 3 are the same size as the diameter of the cylindrical body 1, and a protruding connector 7 is provided between the upper cover 2 and the lower cover 3. The connector 7 is threaded, and a corresponding threaded wall is also provided on the inner wall of the cylindrical body 1. The upper cover 2 and the lower cover 3 are screwed onto the cylindrical body 1 to form a whole. A sealing ring 8 is installed at the connection between the upper cover 2 and the lower cover 3 and the cylindrical body 1 after screwing, which provides a double seal.

[0022] The water passage 6 consists of a square water passage 9 located at the top and bottom center, and elongated water passages 10 located on the left and right sides. The lower cover 3 is also provided with a threaded through hole or threaded connector 11, which can be connected to a sludge pipe for sewage discharge.

[0023] This utility model uses a baffle to separate the level gauge interface pipe seat and the boiler interface pipe seat, and the baffle has notches at the top and bottom (square water passage holes and long strip water passage holes) to allow normal water flow and ensure the normal use of the entire device.

[0024] In this invention, the baffle and cylinder only require partial welding. To isolate impact and stabilize the liquid level, the remaining welds must be full welds. During use, the connecting pipes to the boiler and the liquid level gauge must be accurate to ensure proper assembly.

[0025] The working process and working principle of this utility model are as follows:

[0026] First, connect the two flanges of the boiler to the boiler with bolts. Then, connect the level gauge to the flange of the stabilizing cylinder and connect the valve at the bottom. When the boiler is running, the water level passes through the stabilizing cylinder and then to the level gauge. When the water level in the boiler body fluctuates, the water will first wash the baffle plate. After passing through the two small holes above and below the baffle plate, the fluctuation will be reduced, making the water level relatively stable. This protects the level gauge from the risk of rupture caused by direct washing by the boiler water.

[0027] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A protection device for a boiler level gauge, wherein the protection device is installed between the boiler and the level gauge, and is a single cylindrical body, characterized in that: The cylinder body consists of a hollow cylinder body, and an upper cover and a lower cover for covering the cylinder body. Sealing rings are installed between the upper cover and the cylinder body to prevent water from flowing out. The cylinder body also has multiple through holes, and connecting flanges are installed on the multiple through holes. The connecting flanges connect the boilers on both sides and the level gauge. A baffle is also arranged inside the cylinder body. The upper and lower ends of the baffle are inserted into the grooves arranged in the upper cover and the lower cover respectively for fixation. The left and right sides are welded to the inner wall of the cylinder body, and water passage holes are opened on the baffle.

2. The boiler level gauge protection device according to claim 1, characterized in that: The baffle is arranged inside the hollow cylindrical body, dividing the cylindrical body into two chambers, left and right. The connecting flange is installed on the two chambers respectively, with one flange arranged on the top and one on the bottom.

3. The boiler level gauge protection device according to claim 1, characterized in that: The upper and lower covers are the same size as the diameter of the cylinder body, and a protruding connector is provided between the upper and lower covers. The connector is threaded, and a corresponding threaded wall is also provided on the inner wall of the cylinder body. The upper and lower covers are screwed together with the cylinder body to form a whole. A sealing ring is installed at the connection between the screwed upper and lower covers and the cylinder body to provide double sealing.

4. The boiler level gauge protection device according to claim 1, characterized in that: The water passage consists of a square water passage located at the top and bottom center, and elongated water passages located on the left and right sides.

5. The boiler level gauge protection device according to claim 1 or 3, characterized in that: The lower cover is also provided with a threaded through hole or a threaded connector, which can be connected to a sludge pipe for sewage discharge.

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