CN219637319U - Passivation treatment system for inner wall of stainless steel pipe - Google Patents
Passivation treatment system for inner wall of stainless steel pipe Download PDFInfo
- Publication number
- CN219637319U CN219637319U CN202320484505.4U CN202320484505U CN219637319U CN 219637319 U CN219637319 U CN 219637319U CN 202320484505 U CN202320484505 U CN 202320484505U CN 219637319 U CN219637319 U CN 219637319U
- Authority
- CN
- China
- Prior art keywords
- passivation
- stainless steel
- reactant
- control unit
- reaction device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002161 passivation Methods 0.000 title claims abstract description 142
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 100
- 239000010935 stainless steel Substances 0.000 title claims abstract description 100
- 239000000376 reactant Substances 0.000 claims abstract description 106
- 238000006243 chemical reaction Methods 0.000 claims abstract description 102
- 239000007789 gas Substances 0.000 claims description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 23
- 238000000605 extraction Methods 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000003153 chemical reaction reagent Substances 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 210000005239 tubule Anatomy 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000002438 flame photometric detection Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a passivation treatment system for the inner wall of a stainless steel pipe, which comprises a first reactant container, a second reactant container, a passivation reaction device, a temperature control device and a flow control device, wherein the first reactant container is internally provided with a first reactant, and the second reactant container is internally provided with a second reactant. The passivation reaction device is internally provided with a sealed reaction cavity, the reaction cavity is internally provided with a stainless steel pipe to be passivated, the outer wall of the passivation reaction device is provided with an inlet end and an outlet end, wherein a connecting port of the inlet end positioned outside the passivation reaction device is respectively communicated with a first reactant container and a second reactant container, the temperature control device comprises a temperature controller and a temperature control unit, the temperature control unit is electrically connected with the temperature controller and is detachably arranged on the passivation reaction device, and the flow control device is used for flow control detection. The system is not affected by the diameter of the stainless steel pipe, and has the advantages of rapid reaction, high passivation efficiency and good passivation effect.
Description
Technical Field
The utility model belongs to the technical field of stainless steel passivation, and particularly relates to a passivation treatment system for the inner wall of a stainless steel tube.
Background
After the stainless steel is passivated, a compact surface layer structure is formed, so that steel is protected, corrosion to the surface of the stainless steel by high temperature water or other corrosive liquids is avoided, and for a stainless steel pipe, the inner wall of the stainless steel pipe is passivated, so that the inner wall of the stainless steel pipe is prevented from being corroded, and the service life of the stainless steel pipe is greatly prolonged. Especially, for stainless steel tubules or stainless steel capillaries, due to the influence of geometric structures, the effective passivation treatment of the inner wall of the tubules is difficult to be carried out by the traditional chemical vapor deposition method because the diameter of the tubules is thinner, and the inner wall of the stainless steel capillaries with the diameter of the tubules can obstruct vapor deposition, so that the difficulty of chemical vapor deposition is greatly increased.
Therefore, when the inner wall of the stainless steel capillary tube is passivated by adopting the traditional chemical vapor deposition method in the prior art, the problems of poor passivation efficiency and passivation effect exist.
Disclosure of Invention
The utility model aims to solve the problems of poor passivation efficiency and passivation effect when the inner wall of a stainless steel capillary tube is passivated by adopting a traditional chemical vapor deposition method in the prior art.
In order to solve the technical problems, the embodiment of the utility model discloses a passivation treatment system for the inner wall of a stainless steel pipe, which comprises:
and a first reactant container, wherein the first reactant container is filled with a first reactant, and one end of the first reactant container is connected with a first conveying pipeline.
And a second reactant container, wherein a second reactant is filled in the second reactant container, and one end of the second reactant container is connected with a second conveying pipeline.
The passivation reaction device is internally provided with a sealed reaction cavity, a stainless steel tube to be passivated is arranged in the reaction cavity, an inlet end and an outlet end are arranged on the outer wall of the passivation reaction device, and the inlet end and the outlet end are respectively positioned at two sides of the passivation reaction device. Wherein the connecting port with the inlet end positioned outside the passivation reaction device is respectively communicated with the first conveying pipeline and the second conveying pipeline, and the connecting port with the inlet end positioned inside the passivation reaction device is connected with one end of the stainless steel pipe; the connecting port with the outlet end inside the passivation reaction device is connected with the other end of the stainless steel tube, and the connecting port with the outlet end outside the passivation reaction device is connected with the output pipeline.
The temperature control device comprises a temperature controller and a temperature control unit, wherein the temperature controller is arranged on one side of the passivation reaction device, and the temperature control unit is electrically connected with the temperature controller and is detachably arranged on the passivation reaction device.
By adopting the technical scheme, the first reactant container and the second reactant container convey reactant gas into the stainless steel pipe to be passivated through the pipeline, and the temperature control device controls the temperature in the passivation reaction device, so that the gas in the passivation reaction device and the inner wall surface of the stainless steel pipe react to passivate the inner wall surface of the stainless steel pipe.
When the device carries out passivation reaction on the inner wall surface of the stainless steel pipe, the device is not influenced by the diameter or the volume of the stainless steel pipe, and has the advantages of rapid reaction, high passivation efficiency and good passivation effect.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel pipe, which also comprises a flow control device, wherein the flow control device comprises:
a flow control unit, a first flow control assembly, a second flow control assembly, and a third flow control assembly.
The first flow control assembly is arranged on the first conveying pipeline and comprises a first flow controller and a first flow meter, and the first flow controller is electrically connected with the flow control unit. The second flow control assembly is arranged on the second conveying pipeline and comprises a second flow controller and a second flow meter, and the second flow controller is electrically connected with the flow control unit. The third flow control assembly is arranged on the output pipeline and comprises a third flow controller and a third flowmeter, and the third flow controller is electrically connected with the flow control unit.
By adopting the technical scheme, the first flow control component can accurately control the flow and the volume of the first reactant in the first conveying pipeline, and can better control the reaction speed. The second flow control assembly is capable of accurately controlling the flow and volume of the second reactant within the second delivery conduit. The third flow control assembly is used for controlling the output flow on the output pipeline.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel tube, wherein the outlet end of the first reactant container is provided with a first switch valve, and the first switch valve is communicated with the first conveying pipeline.
The outlet end of the second reactant container is provided with a second switch valve, and the second switch valve is communicated with a second conveying pipeline.
The outlet end of the output pipeline is provided with a third switch valve which is communicated with the output pipeline.
By adopting the technical scheme, the on-off valve is used for controlling the opening and closing of the reactant container, so that the reactant flows into the stainless steel tube to be passivated.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel tube, which further comprises:
the first gas extraction port is positioned at the inlet end of the passivation reaction device;
and the second gas extraction port is positioned at the end part of the output pipeline.
By adopting the technical scheme, the first gas extraction port and the second gas extraction port are used for collecting and detecting, and gas in the pipeline is injected or extracted at any time for inspection.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel pipe, wherein the temperature control unit comprises a first temperature control unit and a second temperature control unit which are detachably arranged on the passivation reaction device and are positioned at two side parts of the stainless steel pipe; wherein the method comprises the steps of
The first temperature control unit and the second temperature control unit both comprise thermocouples.
By adopting the technical scheme, the first temperature control unit and the second temperature control unit both comprise thermocouples, so that the reaction temperature in the passivation reaction device can be controlled, the temperature in the passivation reaction device can be detected, and the reaction temperature can be accurately and timely controlled.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel tube, wherein the first reactant container comprises a silicon source reagent container, and the silicon source reagent container is internally provided with a silicon source reagent;
the second reactant vessel comprises a nitrogen source vessel, which is filled with nitrogen.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel pipe, wherein a pipeline part of the first conveying pipeline connected with the inlet end is provided with a first flow control valve;
the pipeline part of the second conveying pipeline connected with the inlet end is provided with a second flow control valve.
By adopting the technical scheme, the first flow control valve and the second flow control valve are arranged to respectively control the first reactant or the second reactant to enter the passivation reaction device for reaction, or the first reactant and the second reactant are mixed and enter the passivation reaction device for reaction passivation.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel pipe, wherein a three-way flow control valve is arranged at the pipeline parts of the first conveying pipeline, the second conveying pipeline and the inlet end.
By adopting the technical scheme, the two reactant pipelines can be switched only by arranging the three-way valve.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel tube, and the stainless steel tube in the passivation reaction device is spiral.
The embodiment of the utility model also discloses a passivation treatment system for the inner wall of the stainless steel tube, and the stainless steel tube in the passivation reaction device is in a serpentine shape.
The beneficial effects of the utility model are as follows:
the utility model discloses a passivation treatment system for the inner wall of a stainless steel pipe, which comprises a first reactant container, a second reactant container, a passivation reaction device, a temperature control device and a flow control device, wherein a silicon source reagent and nitrogen are respectively arranged in the first reactant container and the second reactant container, and can be introduced into the stainless steel pipe to be passivated in the passivation reaction device through a pipeline to passivate the inner wall surface of the stainless steel pipe, so that the passivation treatment system is not influenced by the diameter or the volume of the stainless steel pipe, and has the advantages of rapid reaction, high passivation efficiency and good passivation effect. The temperature control device can accurately, rapidly and timely control the temperature in the passivation reaction device. The flow control device can accurately, rapidly and timely control the flow velocity or flow of the reactant. Has the advantages of simple structure, convenient control and rapid reaction.
Drawings
Fig. 1 is a schematic structural diagram of a passivation treatment system for inner walls of stainless steel pipes according to embodiment 1 of the present utility model;
fig. 2 is a schematic structural diagram of a passivation treatment system for inner walls of stainless steel pipes according to embodiment 2 of the present utility model;
fig. 3 is a schematic structural diagram of a passivation treatment system for inner walls of stainless steel pipes according to embodiment 3 of the present utility model.
Reference numerals illustrate:
100. a first reactant reservoir;
110. a first delivery conduit; 120. a first switching valve; 130. a first flow control valve;
200. a second reactant reservoir;
210. a second delivery conduit; 220. a second switching valve; 230. a second flow control valve;
300. passivating the reaction device;
310. an inlet end; 320. an outlet end; 330. a first gas extraction port; 340. a second gas extraction port;
400. stainless steel tube;
500. a temperature controller;
510. a first temperature control unit; 520. a second temperature control unit;
600. a flow control unit;
610. a first flow controller; 620. a first flowmeter; 630. a second flow controller; 640. a second flowmeter; 650. a third flow controller; 660. a third flowmeter;
700. a third switching valve;
800. a three-way flow control valve.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
Example 1
The implementation of this embodiment discloses a passivation processing system of stainless steel pipe inner wall, and the system includes:
first reactant container 100, first reactant is contained in first reactant container 100, and first delivery pipe 110 is connected to one end of first reactant container 100.
Second reactant reservoir 200, second reactant reservoir 200 is filled with a second reactant, and second delivery conduit 210 is connected to one end of second reactant reservoir 200.
The passivation reaction device 300, the passivation reaction device 300 is formed with sealed reaction chamber, has the stainless steel pipe 400 of treating of passivation in the reaction chamber, is provided with entrance end 310 and exit end 320 on the outer wall of passivation reaction device 300, and entrance end 310 and exit end 320 are located the both sides of passivation reaction device 300 respectively. Wherein the connection port of the inlet end 310 positioned outside the passivation reacting device 300 is respectively communicated with the first conveying pipeline 110 and the second conveying pipeline 210, and the connection port of the inlet end 310 positioned inside the passivation reacting device 300 is connected with one end of the stainless steel tube 400; the connection port of the outlet port 320 located inside the passivation reacting device 300 is connected with the other end portion of the stainless steel tube 400, and the connection port of the outlet port 320 located outside the passivation reacting device 300 is connected with the output pipe.
The temperature control device comprises a temperature controller 500 and a temperature control unit, wherein the temperature controller 500 is arranged on one side of the passivation reaction device 300, and the temperature control unit is electrically connected with the temperature controller 500 and is detachably arranged on the passivation reaction device 300.
Specifically, in the present embodiment, the first reactant container 100 and the second reactant container 200 deliver reactant gases into the stainless steel pipe 400 to be passivated through the pipeline, and the temperature control device controls the temperature in the passivation reaction device 300 so that the gases located in the stainless steel pipe 400 react with the inner wall surface of the stainless steel pipe 400 in the passivation reaction device 300 to perform passivation reaction on the inner wall surface of the stainless steel pipe 400.
More specifically, in this embodiment, the first reactant container 100 and the second reactant container 200 may be filled with different reactants or the same reactants according to different requirements, and the reactants may be silicon source reagents, nitrogen, inert gases or other passivation reactants, which is not specifically limited in this embodiment.
The reactants in the first reactant container 100 and the second reactant container 200 are respectively conveyed into the inlet end 310 of the passivation reaction device 300 through the first conveying pipeline 110 and the second conveying pipeline 210, then enter the stainless steel tube 400 to be passivated in the passivation reaction device 300, and undergo a passivation reaction when flowing in the stainless steel tube 400, so that a layer of compact surface layer tissue is formed on the inner wall surface of the stainless steel tube 400. So as to effectively passivate the inner wall surface of the capillary tube or the stainless steel thin tube.
When the device performs passivation reaction on the inner wall surface of the stainless steel pipe 400, the device is not influenced by the diameter or the volume of the stainless steel pipe 400, and has the advantages of rapid reaction, high passivation efficiency and good passivation effect.
The embodiment of the present embodiment further discloses a passivation treatment system for the inner wall of the stainless steel pipe, as shown in fig. 1, further including a flow control device, where the flow control device includes:
a flow control unit 600, a first flow control assembly, a second flow control assembly, and a third flow control assembly.
The first flow control assembly is disposed on the first delivery pipe 110, and includes a first flow controller 610 and a first flow meter 620, and the first flow controller 610 is electrically connected to the flow control unit 600.
The second flow control assembly is disposed on the second delivery conduit 210, and includes a second flow controller 630 and a second flow meter 640, the second flow controller 630 being electrically connected to the flow control unit 600.
A third flow control assembly is disposed on the output conduit, the third flow control assembly including a third flow controller 650 and a third flow meter 660, the third flow controller 650 being electrically connected to the flow control unit 600.
Specifically, in the present embodiment, as shown in fig. 1, the first flow meter 620 can display the flow rate of the first reactant in the first delivery pipe 110, the flow control unit 600 is electrically connected to the first flow controller 610, and the flow control unit 600 can control the opening degree and the flow rate of the first flow controller 610. The second flow meter 640 can display the flow rate of the second reactant in the second delivery pipe 210, the flow control unit 600 is electrically connected to the second flow controller 630, and the flow control unit 600 can control the opening degree and the flow rate of the second flow controller 630. The third flow meter 660 can display the flow rate of the reactant reacted in the output pipe, the flow control unit 600 is electrically connected to the third flow controller 650 at the same time, and the flow control unit 600 can control the opening degree and the flow rate of the third flow controller 650.
In this manner, the first flow control assembly can accurately control the flow and volume of the first reactant within the first delivery conduit 110, enabling better control of the reaction rate. The second flow control assembly is capable of accurately controlling the flow and volume of the second reactant within the second delivery conduit 210. The third flow control assembly is used for controlling the output flow on the output pipeline.
The embodiment of the present embodiment also discloses a passivation treatment system for the inner wall of the stainless steel tube, as shown in fig. 1, the outlet end 320 of the first reactant container 100 is provided with a first on-off valve 120, and the first on-off valve 120 is communicated with the first conveying pipeline 110.
The outlet end 320 of the second reactant reservoir 200 is provided with a second on-off valve 220, the second on-off valve 220 being in communication with the second delivery conduit 210.
The outlet end 320 of the output pipe is provided with a third on-off valve 700, the third on-off valve 700 being in communication with the output pipe.
Specifically, in the present embodiment, the first switch valve 120, the second switch valve 220, and the third switch valve 700 may be various common gate valves, electric valves, pneumatic valves, electromagnetic valves, etc., and those skilled in the art may design and use the valve according to actual needs. The on-off valve is used to control the opening and closing of the reactant reservoir so that the reactant flows into the stainless steel tube 400 to be passivated.
The implementation manner of this embodiment also discloses a passivation treatment system for the inner wall of the stainless steel tube, as shown in fig. 1, and further includes: a first gas extraction port 330 and a second gas extraction port 340, the first gas extraction port 330 being located at the inlet end 310 of the passivation means 300. The second gas extraction port 340 is located at the end of the output duct.
Specifically, in the present embodiment, the first gas-collecting port 330 and the second gas-collecting port 340 are used for collecting and detecting, and injecting or extracting the gas in the pipeline at any time for inspection.
The implementation of this embodiment also discloses a passivation treatment system for the inner wall of the stainless steel tube, where the temperature control unit includes a first temperature control unit 510 and a second temperature control unit 520, and the first temperature control unit 510 and the second temperature control unit 520 are detachably disposed on the passivation reaction device 300 and located at two sides of the stainless steel tube 400; wherein the first temperature control unit 510 and the second temperature control unit 520 each include a thermocouple.
Specifically, in this embodiment, the first temperature control unit 510 and the second temperature control unit 520 each include a thermocouple, so that the reaction temperature in the passivation reaction device 300 can be controlled, and the temperature in the passivation reaction device 300 can be detected, so that the reaction temperature can be accurately and timely controlled.
More specifically, in the present embodiment, the first temperature control unit 510 and the second temperature control unit 520 may be various common thermal sensors for detecting the temperature in the reaction device and electric heating wires for adjusting the temperature in the reaction device.
The embodiment of the present embodiment also discloses a passivation treatment system for the inner wall of the stainless steel tube, where the first reactant container 100 includes a silicon source reagent container, and the silicon source reagent container is filled with a silicon source reagent. The second reactant vessel 200 comprises a nitrogen source vessel that contains nitrogen.
The embodiment of the present embodiment also discloses a passivation treatment system for the inner wall of the stainless steel tube, where the first flow control valve 130 is disposed at the pipe portion where the first conveying pipe 110 is connected to the inlet end 310. The second flow control valve 230 is provided at the pipe portion of the second transfer pipe 210 connected to the inlet end 310.
Specifically, during the actual reaction, the first flow control valve 130 may be opened, the second flow control valve 230 may be closed, and only the first reactant, such as the silicon source reagent, may flow through the passivation device 300.
Alternatively, the second flow control valve 230 may be opened, the first flow control valve 130 may be closed, and only the second reactant, such as nitrogen, may be circulated in the passivation means 300.
It is also possible to simultaneously open the second flow control valve 230 and the first flow control valve 130 to flow a mixture of the first reactant and the second reactant, for example, a mixture gas of a silicon source reagent and nitrogen gas, through the passivation reaction device 300. In the actual passivation reaction process, those skilled in the art can adjust according to actual requirements, and this embodiment is not limited in particular. Thus, in this embodiment, the first flow control valve 130 and the second flow control valve 230 can control the first reactant or the second reactant to enter the passivation reaction device 300 for reaction, or to be mixed and enter the passivation reaction device 300 for reaction passivation.
The embodiment of the present embodiment also discloses a passivation treatment system for the inner wall of the stainless steel tube, wherein the stainless steel tube 400 in the passivation reaction device 300 is in a spiral shape.
In summary, the embodiment discloses a passivation treatment system for an inner wall of a stainless steel pipe, which comprises a first reactant container 100, a second reactant container 200, a passivation reaction device 300, a temperature control device and a flow control device, wherein a silicon source reagent and nitrogen are respectively arranged in the first reactant container 100 and the second reactant container 200, and can be introduced into the stainless steel pipe 400 to be passivated in the passivation reaction device 300 through a pipeline to passivate the inner wall surface of the stainless steel pipe 400, so that the passivation treatment system is not influenced by the diameter or the volume of the stainless steel pipe 400, and has the advantages of rapid reaction, high passivation efficiency and good passivation effect. The temperature control device can accurately, rapidly and timely control the temperature in the passivation reaction device 300. The flow control device can accurately, rapidly and timely control the flow velocity or flow of the reactant. Has the advantages of simple structure, convenient control and rapid reaction.
More specifically, the working process of the passivation processing system is explained in a simple manner:
before the passivation reaction starts, the stainless steel tube 400 to be passivated is installed in the passivation reaction device 300, and both ends of the stainless steel tube 400 are respectively communicated with the inlet end 310 and the outlet end 320. When the passivation reaction is required, the flow control valves at one side of the first reactant container 100 and the second reactant container 200 may be opened according to the requirement so that the first reactant, the second reactant, or the mixed reactant enters the stainless steel tube 400 in the passivation reaction device 300, the temperature controller 500 displays the reaction temperature in the passivation reaction device 300 in real time, and the heating temperatures of the first temperature control unit 510 and the second temperature control unit 520 may be controlled by the temperature controller 500. During the reaction, the first flow control assembly can accurately control the flow and volume of the first reactant within the first delivery conduit 110 and the second flow control assembly can accurately control the flow and volume of the second reactant within the second delivery conduit 210. The third flow control component is used for controlling the output flow on the output pipeline and precisely controlling the outflow gas of the pipeline. And the first gas extraction port 330 and the second gas extraction port 340 can inject or extract the gas in the pipeline at any time, and finally the output pipeline is connected with the gas chromatograph equipped with flame photometric detection gas to monitor the exhaust gas on line.
Example 2
The passivation system disclosed in this embodiment is different from that disclosed in embodiment 1 only in that the first flow control valve 130 and the second flow control valve 230 are not provided in this embodiment, but the three-way flow control valve 800 is provided.
Specifically, in the present embodiment, as shown in fig. 2, a three-way flow control valve 800 is provided at a pipe portion where the first and second delivery pipes 110 and 210 are connected to the inlet end 310.
By adopting the technical scheme, the two reactant pipelines can be switched by only arranging the three-way valve, and only the first reactant and the second reactant or the mixture of the first reactant and the second reactant can be circulated in the passivation reaction device 300 by only arranging the three-way valve.
Example 3
The embodiment of the present example also discloses a passivation treatment system for the inner wall of the stainless steel tube, and the difference between the present example and the examples 1 and 2 is only that the structure of the stainless steel tube 400 is different.
Specifically, as shown in fig. 3, the stainless steel tube 400 in the passivation reaction device 300 has a serpentine shape, and as shown in fig. 3, the specific shape of the stainless steel tube 400 may be designed and selected according to actual requirements, for example, a straight tube, a bent tube, etc. The working principle of the passivation treatment system for the inner wall of the stainless steel tube disclosed in the embodiment is the same as that of embodiment 1, and the embodiment is not repeated.
While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.
Claims (10)
1. A passivation treatment system for an inner wall of a stainless steel pipe, the system comprising:
the device comprises a first reactant container, a second reactant and a third reactant, wherein the first reactant container is internally provided with a first reactant, and one end of the first reactant container is connected with a first conveying pipeline;
the second reactant container is internally provided with a second reactant, and one end of the second reactant container is connected with a second conveying pipeline;
the passivation reaction device is internally provided with a sealed reaction cavity, a stainless steel tube to be passivated is arranged in the reaction cavity, an inlet end and an outlet end are arranged on the outer wall of the passivation reaction device, and the inlet end and the outlet end are respectively positioned at two sides of the passivation reaction device; wherein,,
the connecting port of the inlet end positioned outside the passivation reaction device is respectively communicated with the first conveying pipeline and the second conveying pipeline, and the connecting port of the inlet end positioned inside the passivation reaction device is connected with one end of the stainless steel pipe; the connecting port of the outlet end positioned in the passivation reaction device is connected with the other end part of the stainless steel tube, and the connecting port of the outlet end positioned outside the passivation reaction device is connected with an output pipeline; and
the temperature control device comprises a temperature controller and a temperature control unit, wherein the temperature controller is arranged on one side of the passivation reaction device, and the temperature control unit is electrically connected with the temperature controller and is detachably arranged on the passivation reaction device.
2. The passivation treatment system for the inner wall of a stainless steel tube according to claim 1, further comprising a flow control device comprising:
a flow control unit;
the first flow control assembly is arranged on the first conveying pipeline and comprises a first flow controller and a first flow meter, and the first flow controller is electrically connected with the flow control unit;
the second flow control assembly is arranged on the second conveying pipeline and comprises a second flow controller and a second flow meter, and the second flow controller is electrically connected with the flow control unit;
and the third flow control assembly is arranged on the output pipeline and comprises a third flow controller and a third flowmeter, and the third flow controller is electrically connected with the flow control unit.
3. The passivation treatment system for the inner wall of the stainless steel tube according to claim 2, wherein the outlet end of the first reactant container is provided with a first on-off valve, and the first on-off valve is communicated with the first conveying pipeline;
the outlet end of the second reactant container is provided with a second switch valve, and the second switch valve is communicated with the second conveying pipeline;
the outlet end of the output pipeline is provided with a third switch valve, and the third switch valve is communicated with the output pipeline.
4. A passivation treatment system for the inner wall of a stainless steel tube according to claim 3, further comprising:
the first gas extraction port is positioned on the inlet end of the passivation reaction device;
and the second gas extraction port is positioned at the end part of the output pipeline.
5. The passivation processing system for the inner wall of the stainless steel tube according to claim 4, wherein the temperature control unit comprises a first temperature control unit and a second temperature control unit, and the first temperature control unit and the second temperature control unit are detachably arranged on the passivation reaction device and are positioned at two sides of the stainless steel tube; wherein the method comprises the steps of
The first temperature control unit and the second temperature control unit each comprise a thermocouple.
6. A passivation treatment system for the inner wall of a stainless steel tube according to any one of claims 1 to 5, wherein the first reactant reservoir comprises a silicon source reagent reservoir containing a silicon source reagent;
the second reactant container comprises a nitrogen source container, and nitrogen is filled in the nitrogen source container.
7. The passivation processing system for the inner wall of the stainless steel tube according to claim 6, wherein a first flow control valve is arranged at a pipeline part of the first conveying pipeline connected with the inlet end;
and a second flow control valve is arranged at the pipeline part of the second conveying pipeline connected with the inlet end.
8. The passivation processing system for the inner wall of the stainless steel tube according to claim 6, wherein the first conveying pipeline, the second conveying pipeline and the pipeline part with the inlet end connected are provided with three-way flow control valves.
9. The passivation processing system for the inner wall of a stainless steel tube according to claim 6, wherein the stainless steel tube in the passivation reaction device is spiral.
10. The passivation processing system for the inner wall of a stainless steel tube according to claim 6, wherein the stainless steel tube in the passivation reaction device has a serpentine shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320484505.4U CN219637319U (en) | 2023-03-14 | 2023-03-14 | Passivation treatment system for inner wall of stainless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320484505.4U CN219637319U (en) | 2023-03-14 | 2023-03-14 | Passivation treatment system for inner wall of stainless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219637319U true CN219637319U (en) | 2023-09-05 |
Family
ID=87812760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320484505.4U Active CN219637319U (en) | 2023-03-14 | 2023-03-14 | Passivation treatment system for inner wall of stainless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219637319U (en) |
-
2023
- 2023-03-14 CN CN202320484505.4U patent/CN219637319U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106769822B (en) | High-temperature corrosion test system | |
| CN107490597A (en) | A kind of hot tracing measure solution of synchronization absorbs the device and assay method of heat | |
| CN219608910U (en) | Water quality monitoring device based on quantitative concentration | |
| CN101770824B (en) | On-line cleaning and demarcating system of density type boron concentration meter | |
| CN219637319U (en) | Passivation treatment system for inner wall of stainless steel pipe | |
| US20210269337A1 (en) | Multifunctional continuous hydrothermal oxidation experiment system and use method therefor | |
| CN110357046A (en) | A kind of nitrogen circulation purification devices, nitrogen circulation purification system and method | |
| CN111024483A (en) | Chlorosilane pretreatment system and method for detecting impurity content in chlorosilane | |
| CN116121695A (en) | Passivation treatment system for inner wall of stainless steel pipe | |
| CN201942724U (en) | Deironing test device by goethite process | |
| CN108506730A (en) | A kind of air supply system and its air supply method | |
| CN111426623A (en) | Device for simulating high-temperature corrosion environment of biomass and detecting experimental reaction gas in real time | |
| CN206587738U (en) | A kind of vacuum high-temperature closed reactor | |
| CN115386458A (en) | Intelligent control fermentation equipment and method | |
| CN112577338B (en) | High-temperature fluid transportation pipeline internally provided with heat exchange equipment, applicable heat exchange equipment and heat exchange method | |
| RU2382813C1 (en) | Reagent dosing method and equipment for implementation | |
| CN201346406Y (en) | Double-coil snakelike jacketed feeding preheater | |
| CN103954549B (en) | Gas-liquid double-phase flow pipeline corrosion experiment method | |
| CN208872094U (en) | A kind of tubular type annealing device | |
| CN208449280U (en) | A kind of System Controlled by Measuring Pressure of iron series water treatment agent production process | |
| CN110585989A (en) | Preheating type vaporization mixer | |
| CN217568659U (en) | Small test evaluation device for synthesizing organic silicon monomer by direct method | |
| CN211927369U (en) | Enamel glass jacketed sampling tube | |
| CN215262165U (en) | Intelligent chemical reaction calorimetric equipment | |
| CN220026964U (en) | Laboratory is with simple and easy gas-liquid quantitative reaction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |