Capacitive liquid level meter for measuring liquid level of boiler drum

Abstract

The utility model discloses a capacitance type liquidometer for measuring the liquid level of a boiler drum, which belongs to the technical field of capacitance type liquidometers and comprises a liquidometer main body, a telescopic component is arranged below the liquidometer main body and comprises a moving groove, an electric push rod is arranged in the moving groove, a second probe is arranged at the bottom end of the electric push rod, and the second probe is arranged in the moving groove. A limiting groove is formed in the second probe, a limiting block is arranged in the moving groove, and a sealing ring is arranged in the moving groove. According to the utility model, through the arrangement of the moving groove, the electric push rod, the second probe, the limiting groove, the limiting block and the sealing ring, when the measurement depth needs to be adjusted, the electric push rod is started, the working electric push rod drives the second probe to move downwards, and meanwhile, the limiting block limits the second probe to prevent the second probe from exceeding the stroke; the liquid level meter can automatically adjust the measuring depth, does not need to be disassembled and assembled, and is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitive liquid level gauges, and in particular relates to a capacitive liquid level gauge for measuring the liquid level of a boiler drum. Background Art

[0002] The simple process of boiler steam production is: heat water to generate steam, make the steam reach a certain temperature and pressure, and then send it to the steam network. In order to shorten the steam production time and improve efficiency, cold water is generally not added directly to the boiler, but the cold water is preheated through the first-level economizer and the second-level economizer, and then sent to the steam drum and water-cooled wall. In order to improve the steam quality, the steam coming out of the steam drum is not directly sent to the steam network, but is adjusted to the temperature required by the process through the first-level superheater, desuperheater and the second-level superheater, and finally sent to the steam network. The steam drum is the place where water and steam are separated, and the steam Steam is led out from the upper part of the drum, and generally the water in the drum should be kept at the halfway point. The liquid level in the drum is relatively complicated. It is not like a static liquid surface, but a boiling state where steam and water are mixed together, and it has a certain pressure. It can be seen that it is difficult to accurately measure the liquid level in this state. However, the boiler drum liquid level is one of the important parameters to ensure the safe operation of boiler equipment. At the same time, it is also a sign of whether the material in the boiler steam-water system is balanced. In order to ensure timely, accurate and reliable measurement of the drum liquid level, each boiler is generally required to be equipped with more than three sets of liquid level measuring devices.

[0003] In the prior art, general capacitive level gauges can generally only measure the liquid level at a single fixed depth. When the measuring depth needs to be adjusted, the level gauge needs to be disassembled and reassembled, which is rather troublesome. Therefore, a capacitive level gauge for measuring the boiler drum liquid level is needed to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a capacitive level meter for measuring the liquid level of a boiler drum, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a capacitive level gauge for measuring the liquid level of a boiler drum, comprising a level gauge body, a telescopic assembly is provided below the level gauge body, the telescopic assembly comprises a movable groove, an electric push rod is provided in the movable groove, a second probe is provided at the bottom end of the electric push rod, a limit groove is provided in the second probe, a limit block is provided in the movable groove, and a sealing ring is provided in the movable groove.

[0006] By providing a movable groove, an electric push rod, a second probe, a limit groove, a limit block and a sealing ring, when the measuring depth needs to be adjusted, the electric push rod is started, and the working electric push rod will drive the second probe to move downward. At the same time, the limit block will limit the second probe to prevent the second probe from exceeding the stroke.

[0007] As a preferred implementation, a connecting pipe is provided in the liquid level meter body.

[0008] The connection pipe is provided to facilitate the connection of the liquid level meter body to the electrical components.

[0009] As a preferred implementation manner, a first connector is provided at the bottom end of the liquid level meter body, and a heat sink is provided at the bottom end of the first connector.

[0010] By providing a heat sink, the heat generated by the components of the liquid level meter body can be more effectively conducted to the heat sink, and then dissipated to the surrounding air through the heat sink, thereby preventing the temperature of the liquid level meter body from being too high.

[0011] As a preferred embodiment, a second connector is provided on the lower surface of the heat sink, a clamping plate is provided at the bottom end of the second connector, a fixing sleeve is clamped on the lower surface of the clamping plate, and a first probe is provided in the fixing sleeve.

[0012] By providing the second connector, the clamping plate and the fixing sleeve, the capacitive liquid level meter can be conveniently disassembled and assembled by cooperating with each other, thereby improving the convenience of disassembly and assembly and facilitating the inspection and maintenance thereof.

[0013] As a preferred embodiment, the movable groove is located in the first probe, the second probe is slidably connected in the movable groove, the number of the limit grooves is two, and they are symmetrically arranged with each other, the number of the limit blocks is two, and the two limit blocks are respectively located in the two limit grooves.

[0014] By providing the limiting groove and the limiting block, when the electric push rod drives the second probe to move downward, the second probe can be limited to prevent the second probe from exceeding the stroke.

[0015] As a preferred implementation, the sealing ring is located below the limiting block, and the inner diameter of the sealing ring is the same as the outer diameter of the second probe.

[0016] The sealing ring is provided to seal the first probe, thereby preventing liquid from invading the first probe and causing damage to the electric push rod in the movable groove.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is provided with a movable groove, an electric push rod, a second probe, a limit groove, a limit block and a sealing ring. When it is necessary to adjust the measuring depth, the electric push rod is started, and the working electric push rod will drive the second probe to move downward. At the same time, the limit block will limit the second probe to prevent the second probe from exceeding the stroke. The liquid level meter can automatically adjust the measuring depth without the need for disassembly and assembly, which is relatively convenient.

[0019] The utility model is provided with a heat sink, so that the heat generated by the components of the liquid level meter body is more effectively conducted to the heat sink, and then dissipated to the surrounding air through the heat sink, thereby preventing the temperature of the liquid level meter body from being too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model in a frontal perspective;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model in a side-view stereoscopic manner;

[0022] Figure 3 It is a schematic diagram of a front-view three-dimensional cross-sectional structure of the first probe of the utility model;

[0023] Figure 4 It is a schematic diagram of a side-view three-dimensional cross-sectional structure of the first probe of the utility model.

[0024] In the figure: 1. Liquid level meter body; 2. Connecting pipe; 3. First connector; 4. Heat sink; 5. Second connector; 6. Snap-on plate; 7. Fixing sleeve; 8. First probe; 9. Telescopic assembly; 91. Moving groove; 92. Electric push rod; 93. Second probe; 94. Limiting groove; 95. Limiting block; 96. Sealing ring. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the embodiments.

[0026] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0027] See also Figure 1-4The utility model provides a capacitive level gauge for measuring the liquid level of a boiler drum, comprising a level gauge body 1, a connecting pipe 2 is arranged in the level gauge body 1, and the connecting pipe 2 is arranged to facilitate the connection of electrical components, a first connecting head 3 is arranged at the bottom end of the level gauge body 1, and a heat sink 4 is arranged at the bottom end of the first connecting head 3, and the heat sink 4 is arranged to make the heat emitted by the components of the level gauge body 1 more effectively transferred to the heat sink 4, and then dissipated to the surrounding air through the heat sink 4, so as to prevent the temperature of the level gauge body 1 from being too high, a second connecting head 5 is arranged on the lower surface of the heat sink 4, a clamping disk 6 is arranged at the bottom end of the second connecting head 5, a fixing sleeve 7 is clamped on the lower surface of the clamping disk 6, and a first probe 8 is arranged in the fixing sleeve 7, and the second connecting head 5, the clamping disk 6 and the fixing sleeve 7 are arranged to cooperate with each other, so that the capacitive level gauge can be conveniently disassembled and assembled, the convenience of disassembly and assembly is improved, and the maintenance thereof is convenient;

[0028] A telescopic assembly 9 is provided below the level meter body 1, and the telescopic assembly 9 includes a moving groove 91, and the moving groove 91 is located in the first probe 8. An electric push rod 92 is provided in the moving groove 91, and a second probe 93 is provided at the bottom end of the electric push rod 92. By providing the electric push rod 92, when working, the second probe 93 can be driven to move downward, so that the measuring depth can be adjusted. The second probe 93 is slidably connected in the moving groove 91, and a limiting groove 94 is provided in the second probe 93. The number of the limiting grooves 94 is two, and they are symmetrically arranged with each other. A limiting block 95 is provided in the moving groove 91, and the number of the limiting blocks 95 is two. The two limit blocks 95 are respectively located in the two limit grooves 94. By setting the limit grooves 94 and the limit blocks 95, when the electric push rod 92 drives the second probe 93 to move downward, the second probe 93 can be limited to prevent the second probe 93 from exceeding the stroke. A sealing ring 96 is provided in the movable groove 91. The sealing ring 96 is located below the limit blocks 95. The inner diameter of the sealing ring 96 is the same as the outer diameter of the second probe 93. By providing the sealing ring 96, the first probe 8 is sealed to prevent liquid from invading the first probe 8 and causing damage to the electric push rod 92 in the movable groove 91.

[0029] The working principle and use process of the utility model are as follows: when the measuring depth needs to be adjusted, the electric push rod 92 is started, and the working electric push rod 92 will drive the second probe 93 to move downward. At this time, the limit block 95 will limit the second probe 93 through the limit groove 94, and at the same time, the sealing ring 96 will seal the first probe 8.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A capacitive level gauge for measuring the liquid level of a boiler drum, comprising a level gauge body (1), Features: A telescopic assembly (9) is provided below the liquid level meter body (1), the telescopic assembly (9) comprising a movable groove (91), an electric push rod (92) being provided in the movable groove (91), a second probe (93) being provided at the bottom end of the electric push rod (92), a limiting groove (94) being provided in the second probe (93), a limiting block (95) being provided in the movable groove (91), and a sealing ring (96) being provided in the movable groove (91).

2. A capacitive level gauge for measuring the liquid level of a boiler drum according to claim 1, Features: A connecting pipe (2) is provided inside the liquid level meter body (1).

3. A capacitive level meter for measuring the liquid level of a boiler drum according to claim 1, Features: A first connection head (3) is provided at the bottom end of the liquid level meter body (1), and a heat sink (4) is provided at the bottom end of the first connection head (3).

4. A capacitive level gauge for measuring the liquid level of a boiler drum according to claim 3, Features: A second connector (5) is provided on the lower surface of the heat sink (4), a clamping plate (6) is provided at the bottom end of the second connector (5), a fixing sleeve (7) is clamped on the lower surface of the clamping plate (6), and a first probe (8) is provided inside the fixing sleeve (7).

5. A capacitive level meter for measuring the liquid level of a boiler drum according to claim 1, Features: The movable groove (91) is located in the first probe (8), the second probe (93) is slidably connected in the movable groove (91), the number of the limiting grooves (94) is two and they are symmetrically arranged, the number of the limiting blocks (95) is two, and the two limiting blocks (95) are respectively located in the two limiting grooves (94).

6. A capacitive level meter for measuring the liquid level of a boiler drum according to claim 1, Features: The sealing ring (96) is located below the limiting block (95), and the inner diameter of the sealing ring (96) is the same as the outer diameter of the second probe (93).

Images