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Explosion-proof type fixed ammonia gas detection probe and manufacturing method thereof

A detection probe, fixed technology, applied in the direction of measuring devices, instruments, analysis materials, etc., can solve the problems of ammonia probe damage, ammonia poisoning, environmental pollution, etc., to improve processability, weldability, and hardenability , Improve the effect of corrosion resistance

Inactive Publication Date: 2015-11-11
JIANGSU JINDI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ammonia gas leakage during use will cause environmental pollution, and in severe cases, it will cause ammonia poisoning of personnel. Therefore, the use of ammonia gas detectors has become a necessary measure. The ammonia gas detector is mainly composed of the alarm control host and ammonia gas detection. Composed of probes, the alarm control host has switch output and an optional communication interface, which can be connected to an external sound and light alarm or start control equipment, and can also communicate with the host computer. The probe on the ammonia gas detector is generally made of metal materials. It is easy to corrode in the gas environment, and when there is a lot of ammonia gas, it is easy to explode under external conditions, and the ammonia gas probe will be seriously damaged after the explosion; therefore, developing an ammonia gas detection probe that can overcome the above defects has become an urgent technology for those skilled in the art. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides an explosion-proof fixed ammonia detection probe. The probe tube of the explosion-proof fixed ammonia detection probe includes the following components according to its mass percentage:

[0038] C: 0.2%, Mn: 3%, P: 0.05%, S: 0.0:15%, Mo: 0.15%, Ni: 0.28%, Cu: 0.08%, Si: 0.6%, Ti: 0.09%, Cr: 0.85 %, Mn: 0.3%, Fe: 0.01%, Pb: 0.05%, Nb: 0.07%, V: 0.08%, rare earth elements: 0.17%, and the balance is Al;

[0039] The composition mass percentage of rare earth elements is calculated as: La: 10%, Y: 10%, Sc: 18%, Gd: 15%, Sm: 20%; Ho: 7%, Tb: 5% and other lanthanide elements, above The sum of the components of lanthanide rare earths is 100%.

[0040] The preparation method of the above-mentioned explosion-proof fixed ammonia detection probe specifically includes the following steps:

[0041] (1) Select molding materials to mix the casting mold. The molding materials include the following components in terms of mass percentage: new sand: 17%, old sand...

Embodiment 2

[0051] This embodiment provides an explosion-proof fixed ammonia detection probe. The probe tube of the explosion-proof fixed ammonia detection probe includes the following components according to its mass percentage:

[0052] C: 0.3%, Mn: 1%, P: 0.03%, S: 0.010%, Mo: 0.12%, Ni: 0.30%, Cu: 0.11%, Si: 0.7%, Ti: 0.15%, Cr: 0.9%, Mn: 0.5%, Fe: 0.03%, Pb: 0.10%, Nb: 0.08%, V: 0.09%, rare earth elements: 0.18%, and the balance is Al;

[0053] The composition mass percentage of rare earth elements is calculated as: La: 13%, Y: 8%, Sc: 15%, Gd: 18%, Sm: 17%; Ho: 5%, Tb: 3% and other lanthanide elements, above The sum of the components of lanthanide rare earths is 100%.

[0054] The preparation method of the above-mentioned explosion-proof fixed ammonia detection probe specifically includes the following steps:

[0055] (1) Select molding materials to mix the casting mold. The molding materials include the following components in terms of mass percentage: new sand: 25%, old sand and...

Embodiment 3

[0065] This embodiment provides an explosion-proof fixed ammonia detection probe. The probe tube of the explosion-proof fixed ammonia detection probe includes the following components according to its mass percentage:

[0066] C: 0.25%, Mn: 2%, P: 0.04%, S: 0.025%, Mo: 0.14%, Ni: 0.25%, Cu: 0.09%, Si: 0.5%, Ti: 0.011%, Cr: 0.8%, Mn: 0.4%, Fe: 0.05%, Pb: 0.08%, Nb: 0.06%, V: 0.085%, rare earth elements: 0.15%, and the balance is Al;

[0067] The composition mass percentage of rare earth elements is calculated as: La: 11%, Y: 11%, Sc: 17%, Gd: 10%, Sm: 14%; Ho: 8%, Tb: 6% and other lanthanide elements, above The sum of the components of lanthanide rare earths is 100%.

[0068] The preparation method of the above-mentioned explosion-proof fixed ammonia detection probe specifically includes the following steps:

[0069] (1) Select molding materials to mix the casting mold. The molding materials include the following components in terms of mass percentage: new sand: 15-25%, old s...

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Abstract

The invention discloses an explosion-proof type fixed ammonia gas detection probe used on an ammonia gas detector. The explosion-proof type fixed ammonia gas detection probe comprises a displayer and a probe tube extending out of the displayer. The probe tube comprises the following components of C, Mn, P, S, Mo, Ni, Cu, Si, Ti, Cr, Mn, Fe, Pb, Nb, V, rare earth elements and the balance Al. The rare earth elements comprise La, Y, Sc, Gd, Sm, Ho, Tb and the balance lanthanide. The invention further provides a manufacturing method for the explosion-proof type fixed ammonia gas detection probe. The manufacturing method is simple and easy to implement, manufacturing cost is low, pollutants cannot be generated in the manufacturing process, the corrosion resistance of the manufactured fixed ammonia gas detection probe is good, the explosion-proof performance is good, service life is prolonged, and cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of instruments and meters, and relates to a probe and a preparation method thereof, in particular to an explosion-proof fixed ammonia detection probe and a preparation method thereof. Background technique [0002] Ammonia is a colorless gas with a pungent smell and a density lower than that of air; ammonia is also an important chemical product. The nitrogen fertilizer industry, the organic synthesis industry and the manufacture of nitric acid, ammonia salt and soda ash are all inseparable from it, but ammonia is harmful to Harmful to the human body, ammonia easily enters the blood through the alveoli after being inhaled into the lungs, combines with hemoglobin, and destroys the oxygen transport function; after inhaling a large amount of ammonia gas in a short period of time, tears, sore throat, hoarse voice, cough, bloodshot sputum, chest tightness; dyspnea , may be accompanied by dizziness, headache, nausea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04G01N33/00
Inventor 朱冬宏周金龙田群
Owner JIANGSU JINDI ELECTRONICS TECH
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