CN216978051U - Cathode protection type magnetic suspension liquid level meter - Google Patents
Cathode protection type magnetic suspension liquid level meter Download PDFInfo
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- CN216978051U CN216978051U CN202220821027.7U CN202220821027U CN216978051U CN 216978051 U CN216978051 U CN 216978051U CN 202220821027 U CN202220821027 U CN 202220821027U CN 216978051 U CN216978051 U CN 216978051U
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Abstract
The utility model discloses a cathode protection type magnetic suspension liquid level meter, which is provided with a stainless steel liquid level meter body made of stainless steel, wherein the bottom of the stainless steel liquid level meter body is provided with a discharge valve through a connected flange plate, and a discharge channel communicated with the discharge valve and the inside of the stainless steel liquid level meter body is arranged in the flange plate respectively, and the cathode protection type magnetic suspension liquid level meter is characterized in that: the stainless steel liquid level meter body is internally provided with a metal block with stronger metal activity than stainless steel. The utility model has the characteristics of lower preparation cost, relatively simple process and longer service life.
Description
Technical Field
The utility model relates to a magnetic suspension liquid level meter, in particular to a cathode protection type magnetic suspension liquid level meter.
Background
The magnetic suspension liquid level meter is generally applied to liquid level measurement, monitoring and control of pressure vessels, liquid storage tanks, water tanks and the like used in production processes of various industries such as electric power, kerosene, chemical engineering, metallurgy, environmental protection, construction, food and the like.
With the development and change of the industry, chemical enterprises, nuclear power plants and the like in coastal cities of China are rapidly developed, and more factories apply seawater to some important production links. Magnetic floating level gauges are also used by users of the above-mentioned industries on intermediate equipment or tanks for storing seawater media, such as: the equipment comprises equipment for seawater desalination, seawater cooling and the like of chemical enterprises, a seawater desalination unit system of a nuclear power plant, a condenser unit, a steam turbine generator unit, a seawater storage cooling system and the like.
It is known that the seawater contains a large amount of chloride ions, which can cause serious corrosion damage to metal materials such as common stainless steel. The content of chloride ions in seawater is about 19000ppm, and the stipulation in the circulating water treatment of a thermal power plant is as follows: the chloride ion in the use environment of 316 stainless steel materials at normal temperature is not more than 1000ppm, which is clearly required in GB 50184 industrial metal pipeline engineering construction quality acceptance regulation: "the content of chloride ion in water should not exceed 25 ppm". The liquid level meter body is mostly made of common stainless steel metal materials, and serious local hole corrosion perforation, stress corrosion cracking, metal structure damage and the like can occur when the liquid level meter is applied to the working condition of seawater. The service life of the liquid level meter is reduced sharply, the service life at normal temperature is maintained at 2-6 months at most, and basically not more than one year, which is also the case of low use temperature. Uncertain hidden dangers and dangers are easy to appear in the heavy industry.
In order to deal with seawater corrosion, the liquid level meter body in the industry generally adopts titanium alloy, hastelloy, super bidirectional stainless steel material or common stainless steel lining plastic and other methods. If the liquid level meter body is made of titanium alloy, hastelloy and super bidirectional stainless steel materials, firstly, the cost of raw materials is very high, secondly, the manufacturing and processing cost is very high, and especially, the requirements on the level of equipment and processing personnel are high. If a common stainless steel lining plastic method is adopted, although the material cost is not high, the process level requirement is high, and the lining plastic is limited in temperature resistance and pressure resistance conditions and cannot realize lining when a liquid level meter body has a complex structure.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a cathode protection type magnetic suspension liquid level meter which is low in preparation cost, relatively simple in process and capable of prolonging the service life.
In order to solve the technical problem, the utility model provides a cathode protection type magnetic suspension liquid level meter, which is provided with a stainless steel liquid level meter body prepared by stainless steel, wherein the bottom of the stainless steel liquid level meter body is provided with a discharge valve through a connected flange plate, and the flange plate is internally provided with a discharge channel respectively communicated with the discharge valve and the inside of the stainless steel liquid level meter body, and is characterized in that: the stainless steel liquid level meter is internally provided with a metal block with stronger metal activity than stainless steel.
Preferably, the metal block is an aluminum block or a zinc block.
As an improvement of the utility model, the device also comprises a fixed spring, the top of the fixed spring is fixedly connected with the bottom of the metal block, and the bottom of the fixed spring is fixed on a flange plate deviating from the discharge channel.
Furthermore, a lead is connected between the metal block and the stainless steel liquid level meter body, and the metal activity of the lead is weaker than that of the metal block.
Furthermore, two ends of the lead are respectively fixed on the metal block and the stainless steel liquid level meter body through fastening screws.
The cathodic protection type magnetic suspension liquid level meter adopting the structure has the advantages that the metal block with stronger metal activity than stainless steel is arranged in the stainless steel liquid level meter body, so that chloride ions in seawater preferentially react with the metal block, the liquid level meter body is not required to be prepared by precious metals such as titanium alloy, hastelloy and the like, the production cost is reduced, the inner wall of the meter body is not required to be lined with glue, the process is simple, and the service life of the utility model can be obviously prolonged by means of electrolyzing the metal block. After the fixed spring is arranged, the metal block can be prevented from blocking the discharge channel and interfering the sewage discharge operation of the discharge valve. After the lead is arranged, the electric connection between the metal block and the stainless steel liquid level meter body is more reliable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a cathodic protection type magnetic levitation liquid level meter of the present invention.
Fig. 2 is an enlarged view of the structure at I in fig. 1.
Detailed Description
Referring to fig. 1 and 2, wherein seawater 9 is arranged in the stainless steel liquid level meter body in fig. 1, the cathode protection type magnetic suspension liquid level meter of the utility model comprises a stainless steel liquid level meter body 1 made of stainless steel, a discharge valve 3 is arranged at the bottom of the stainless steel liquid level meter body through a connecting flange 2, and a discharge channel 4 respectively communicated with the discharge valve and the interior of the stainless steel liquid level meter body is arranged in the flange, and is characterized in that: the stainless steel liquid level meter is characterized in that a metal block 5 with stronger metal activity than stainless steel is arranged in the stainless steel liquid level meter body 1. The metal block 5 is an aluminum block or a zinc block. The discharge device also comprises a fixed spring 6, the top of the fixed spring is fixedly connected with the bottom of the metal block 5, and the bottom of the fixed spring is fixed on the flange 2 deviating from the discharge channel 4. And a lead 7 is connected between the metal block 5 and the stainless steel liquid level meter body 1, and the metal activity of the lead is weaker than that of the metal block. Two ends of the lead 7 are respectively fixed on the metal block 5 and the stainless steel liquid level meter body 1 through fastening screws 8.
Claims (5)
1. The utility model provides a cathodic protection formula magnetism floats level gauge has the stainless steel level gauge table body (1) by the stainless steel preparation, and discharge valve (3) are equipped with through ring flange (2) of connecting in the bottom of the stainless steel level gauge table body, have discharge passage (4) that are linked together with discharge valve and the internal portion of stainless steel level gauge table respectively in the ring flange, its characterized in that: the stainless steel liquid level meter is characterized in that a metal block (5) with stronger metal activity than stainless steel is arranged in the stainless steel liquid level meter body (1).
2. The cathodic protection magnetic-levitation level gauge of claim 1, wherein: the metal block (5) is an aluminum block or a zinc block.
3. The cathodic protection magnetic-levitation liquid level gauge of claim 1, wherein: the device also comprises a fixed spring (6), the top of the fixed spring is fixedly connected with the bottom of the metal block (5), and the bottom of the fixed spring is fixed on the flange plate (2) deviating from the discharge channel (4).
4. The cathodic protection magnetic-levitation liquid level gauge of claim 1, wherein: and a lead (7) is connected between the metal block (5) and the stainless steel liquid level meter body (1), and the metal activity of the lead is weaker than that of the metal block.
5. The cathodic protection magnetic-levitation liquid level gauge of claim 4, wherein: two ends of the lead (7) are respectively fixed on the metal block (5) and the stainless steel liquid level meter body (1) through fastening screws (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220821027.7U CN216978051U (en) | 2022-04-11 | 2022-04-11 | Cathode protection type magnetic suspension liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220821027.7U CN216978051U (en) | 2022-04-11 | 2022-04-11 | Cathode protection type magnetic suspension liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216978051U true CN216978051U (en) | 2022-07-15 |
Family
ID=82341463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220821027.7U Active CN216978051U (en) | 2022-04-11 | 2022-04-11 | Cathode protection type magnetic suspension liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216978051U (en) |
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2022
- 2022-04-11 CN CN202220821027.7U patent/CN216978051U/en active Active
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