Corrosion-resistant chloromethane system

Abstract

The utility model relates to the technical field of chloromethane systems, in particular to an anti-corrosion chloromethane system which comprises a reactor, and the reactor is connected with a methane chloride inlet pipe, a chlorine inlet pipe and a discharge pipe. A first heat exchanger and a first oxygen absorbent tank are sequentially arranged on the methane chloride inlet pipe in the material flowing direction; the chlorine inlet pipe is sequentially provided with a second heat exchanger, a second oxygen absorbent tank and a dehydrated activated carbon adsorbent tank in the material flowing direction; by arranging the first oxygen absorbent tank and the second oxygen absorbent tank, oxygen in a material can be absorbed, so that the oxygen is prevented from being combined with hydrogen atoms to generate water; by arranging the dehydrated activated carbon adsorbent tank, moisture in the materials can be absorbed, and therefore it is avoided that water and chlorine are combined to generate hydrochloric acid.

Description

Technical Field

[0001] The utility model relates to the technical field of methyl chloride systems, in particular to a methyl chloride system capable of preventing corrosion. Background Art

[0002] The corrosion problem of methyl chloride system has always been an important problem affecting its production process. The main cause of corrosion is the reaction of chlorine and water to generate highly corrosive hydrochloric acid. In the existing technology, although some measures have been taken to slow down corrosion, such as using anti-corrosion coatings and improving equipment materials, these methods still have certain limitations and cannot fundamentally solve the corrosion problem. Utility Model Content

[0003] The main purpose of the utility model is to provide a corrosion-resistant methyl chloride system to solve the corrosion problem of the methyl chloride system in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a corrosion-resistant methyl chloride system, comprising a reactor, wherein the reactor is connected with a methane chloride inlet pipe, a chlorine gas inlet pipe and a discharge pipe; a first heat exchanger and a first oxygen absorber tank are sequentially arranged on the methane chloride inlet pipe along the material flow direction; a second heat exchanger, a second oxygen absorber tank and a dehydrated activated carbon adsorbent tank are sequentially arranged on the chlorine gas inlet pipe along the material flow direction.

[0005] Furthermore, a first oxygen measuring instrument is provided on the methane chloride inlet pipe at a position on the rear side of the first oxygen absorbent tank.

[0006] Furthermore, a second oxygen meter is provided on the chlorine inlet pipe at a position on the rear side of the dehydrated activated carbon adsorbent tank.

[0007] Furthermore, a moisture meter is provided on the chlorine gas inlet pipe at a position on the rear side of the dehydration activated carbon adsorbent tank.

[0008] Furthermore, a hydrochloric acid measuring instrument is provided on the discharge pipe.

[0009] The utility model can absorb oxygen in the material by arranging the first oxygen absorber tank and the second oxygen absorber tank, thereby preventing oxygen and hydrogen atoms from combining to generate water; and can absorb moisture in the material by arranging the dehydration activated carbon adsorbent tank, thereby preventing water and chlorine from combining to generate hydrochloric acid.

[0010] The utility model can monitor the oxygen absorption effect of the first oxygen absorber tank and the second oxygen absorber tank and measure the moisture absorption effect of the dehydrated activated carbon adsorbent tank by arranging the first oxygen measuring instrument, the second oxygen measuring instrument and the moisture measuring instrument, so as to timely replenish or replace the absorbent in the tank when the absorption effect is obviously weakened; and further monitor the absorption effect of oxygen and moisture by arranging the hydrochloric acid measuring instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0012] Figure 1 It is a structural schematic diagram of an embodiment;

[0013] In the figure: 1. reactor; 2. methane chloride inlet pipe; 3. chlorine inlet pipe; 4. discharge pipe; 5. first heat exchanger; 6. first oxygen absorber tank; 7. second heat exchanger; 8. second oxygen absorber tank; 9. dehydrated activated carbon adsorbent tank; 10. first oxygen meter; 11. second oxygen meter; 12. moisture meter; 13. hydrochloric acid meter. DETAILED DESCRIPTION

[0014] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0015] like Figure 1 As shown, according to an embodiment of the utility model, a corrosion-resistant methyl chloride system is provided, comprising a reactor 1, the bottom of the reactor 1 is connected with a methane chloride inlet pipe 2 and a chlorine gas inlet pipe 3, and the top is connected with a discharge pipe 4; a first heat exchanger 5 and a first oxygen absorber tank 6 are sequentially arranged on the methane chloride inlet pipe 2 along the material flow direction; monochloromethane and dichloromethane are introduced into the methane chloride inlet pipe 2, and chlorine gas is introduced into the chlorine gas inlet pipe 3.

[0016] The chlorine inlet pipe 3 is provided with a second heat exchanger 7, a second oxygen absorber tank 8 and a dehydrated activated carbon adsorbent tank 9 in sequence along the material flow direction; the first oxygen absorber tank 6 and the second oxygen absorber tank 8 are filled with MOFs for absorbing oxygen; the dehydrated activated carbon adsorbent tank 9 is filled with macroporous activated carbon for absorbing moisture.

[0017] The first oxygen absorber tank 6 and the second oxygen absorber tank 8 can absorb oxygen in the material, thereby preventing oxygen and hydrogen atoms from combining to generate water; by setting a dehydrated activated carbon adsorbent tank 9, moisture in the material can be absorbed, thereby preventing water and chlorine from combining to generate hydrochloric acid.

[0018] A first oxygen meter 10 is provided on the methane chloride inlet pipe 2 at a position behind the first oxygen absorber tank 6; a second oxygen meter 11 and a moisture meter 12 are provided on the chlorine inlet pipe 3 at a position behind the dehydrated activated carbon adsorbent tank 9; and a hydrochloric acid meter 13 is provided on the discharge pipe 4.

[0019] By setting the first oxygen meter 10, the second oxygen meter 11 and the moisture meter 12, the oxygen absorption effect of the first oxygen absorber tank 6 and the second oxygen absorber tank 8 can be monitored and the moisture absorption effect of the dehydrated activated carbon adsorbent tank 9 can be measured, so as to replenish or replace the absorbent in the tank in time when the absorption effect is obviously weakened; by setting the hydrochloric acid meter 13, the absorption effect of oxygen and moisture can be further monitored.

[0020] This embodiment can prevent the generation of corrosive hydrochloric acid from the source; after using the anti-corrosion methyl chloride system in this embodiment, the corrosion of the methyl chloride system is greatly reduced, and the service life of the methyl chloride system is extended.

[0021] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A corrosion-resistant methyl chloride system, comprising a reactor (1), wherein the reactor (1) is connected to a methane chloride inlet pipe (2), a chlorine gas inlet pipe (3) and a discharge pipe (4); characterized in that: A first heat exchanger (5) and a first oxygen absorber tank (6) are sequentially arranged on the methane chloride inlet pipe (2) along the material flow direction; a second heat exchanger (7), a second oxygen absorber tank (8) and a dehydrated activated carbon adsorbent tank (9) are sequentially arranged on the chlorine gas inlet pipe (3) along the material flow direction.

2. The anti-corrosion methyl chloride system according to claim 1, characterized in that: A first oxygen measuring instrument (10) is provided on the methane chloride inlet pipe (2) at a position located on the rear side of the first oxygen absorber tank (6).

3. The corrosion-resistant methyl chloride system according to claim 1, characterized in that: A second oxygen meter (11) is provided on the chlorine gas inlet pipe (3) at a position located on the rear side of the dehydrated activated carbon adsorbent tank (9).

4. The anti-corrosion methyl chloride system according to claim 3, characterized in that: A moisture meter (12) is provided on the chlorine gas inlet pipe (3) at a position located on the rear side of the dehydration activated carbon adsorbent tank (9).

5. The anti-corrosion methyl chloride system according to claim 1, characterized in that: The discharge pipe (4) is provided with a hydrochloric acid measuring instrument (13).

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