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Valve for sea water desalination treatment

A valve and mass percentage technology, applied in heat treatment furnaces, heat treatment equipment, valve details, etc., can solve problems such as the harsh environment of valves, and achieve the effects of stable process, enhanced product strength, and improved flame retardancy

Inactive Publication Date: 2018-04-13
张剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The valves used for seawater desalination are used in harsh environments, so developing a valve that can be used for a long time in this environment has become a technical problem to be solved urgently by those skilled in the art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a valve for seawater desalination treatment, the valve includes the following components by mass percentage:

[0041] Al: 3%, Mn: 1.15%, Zn: 0.5%, Si: 0.02%, Co: 0.1%, Cr: 4%, C: 0.15%, V: 0.1%, S: 0.020%, P: 0.020%, Cu: 0.15%, Ti: 0.15%, Mo: 0.25%, Nb: 0.002%, Pa: 0.05%, rare earth elements 0.5%, and the rest is Fe;

[0042] Rare earth elements include the following components by mass percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the balance is La, and the sum of the above components is 100% ;

[0043]The casting process of the above-mentioned valve comprises the following steps:

[0044] (1) According to the size of the valve, the molding sand and core sand are used as molding materials to make molds. Before making the mold, the molding sand in the molding material is first placed in an oven for drying. After drying, it is on the surface of the mold Apply a layer of release agent;

[0045] (2) Place the valve raw material component...

Embodiment 2

[0057] This embodiment provides a valve for seawater desalination treatment, the valve includes the following components by mass percentage:

[0058] Al: 5%, Mn: 1.17%, Zn: 1%, Si: 0.03%, Co: 0.3%, Cr: 7%, C: 0.17%, V: 0.4%, S: 0.015%, P: 0.015%, Cu: 0.20%, Ti: 0.17%, Mo: 0.39%, Nb: 0.004%, Pa: 0.08%, rare earth elements 0.8%, and the rest is Fe;

[0059] Rare earth elements include the following components by mass percentage: Y: 15%, Sc: 18%, Gd: 11%, Sm: 20%, Pr: 11%, the balance is La, and the sum of the above components is 100% ;

[0060] The casting process of the above-mentioned valve comprises the following steps:

[0061] (1) According to the size of the valve, the molding sand and core sand are used as molding materials to make molds. Before making the mold, the molding sand in the molding material is first placed in an oven for drying. After drying, it is on the surface of the mold Apply a layer of release agent;

[0062] (2) Place the valve raw material componen...

Embodiment 3

[0074] This embodiment provides a valve for seawater desalination treatment, the valve includes the following components by mass percentage:

[0075] Al: 4%, Mn: 1.16%, Zn: 0.8%, Si: 0.025%, Co: 0.2%, Cr: 6%, C: 0.16%, V: 0.3%, S: 0.021%, P: 0.02:3 %, Cu: 0.18%, Ti: 0.16%, Mo: 0.32%, Nb: 0.003%, Pa: 0.06%, rare earth elements 0.6%, and the rest is Fe;

[0076] Rare earth elements include the following components by mass percentage: Y: 14%, Sc: 17%, Gd: 10%, Sm: 19%, Pr: 10%, the balance is La, and the sum of the above components is 100% ;

[0077] The casting process of the above-mentioned valve comprises the following steps:

[0078] (1) According to the size of the valve, the molding sand and core sand are used as molding materials to make molds. Before making the mold, the molding sand in the molding material is first placed in an oven for drying. After drying, it is on the surface of the mold Apply a layer of release agent;

[0079] (2) Place the valve raw material com...

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Abstract

The invention discloses a valve for sea water desalination treatment. The valve is prepared from the following components in percentage by mass: 3-5% of Al, 1.15-1.17% of Mn, 0.5-1% of Zn, 0.02-0.03%of Si, 0.1-0.3% of Co, 4-7% of Cr, 0.15-0.17% of C, 0.1-0.4% of V, less than or equal to 0.025% of S, less than or equal to 0.025% of P, less than or equal to 0.20% of Cu, 0.15-0.17% of Ti, 0.25-0.39%of Mo, 0.002-0.004% of NB, 0.05-0.08% of Pa, 0.5-0.8% of rare earth elements and the balance of Fe. The valve is good in corrosion resistance, long in service life and simple and feasible in production process.

Description

technical field [0001] The invention relates to a valve, in particular to a valve used for seawater desalination treatment. Background technique [0002] Seawater desalination is the use of seawater desalination to produce fresh water. It is an open-source incremental technology to realize the utilization of water resources. It can increase the total amount of fresh water without being affected by time, space and climate. The water quality is good and the interval is gradually reasonable. It can ensure the drinking water and The process of obtaining fresh water from seawater is called seawater desalination. The seawater desalination methods currently used include seawater freezing method, electrodialysis method, distillation method, and reverse osmosis method. At present, the reverse osmosis method using reverse osmosis membrane and Its advantages of simple equipment, easy maintenance and equipment modularization quickly occupied the market, and gradually replaced distillati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/06C22C38/04C22C38/02C22C38/30C22C38/20C22C38/28C22C38/22C22C38/26B22C9/22C21D1/18C21D1/26C21D9/00F16K27/00
CPCC22C38/06B22C9/22C21D1/18C21D1/26C21D9/0068C22C38/002C22C38/005C22C38/02C22C38/04C22C38/20C22C38/22C22C38/26C22C38/28C22C38/30F16K27/00
Inventor 张剑
Owner 张剑
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