An ultralong chemical pipeline transportation system

Abstract

The application provides a kind of super-long chemical pipeline conveying system, comprising: centralized liquid supply system equipment;Several chemical distribution plates;Several transparent PVC boxes, and hollow double-layer pipes;For connecting centralized liquid supply system equipment, chemical distribution plate and transparent PVC box;Hollow double-layer pipe includes transparent PVC pipe and PFA hose, transparent PVC pipe is contained in transparent PVC direct head, PFA hose is contained in transparent PVC pipe, PFA hose diameter is 1-1.5 inch, transparent PVC box is internally provided with by letting box, by letting box includes several adapters, locking nuts and electronic valves, electronic valve is electrically connected with PLC and smoke sensor;Transparent PVC box bottom surface is also provided with several reagent boxes, and reagent box contains reagent that can react with dangerous chemicals to generate smoke.The application can realize super-long chemical transportation turning to prevent pipeline rupture, and prevent chemical leakage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical pipeline transportation, and belongs to an ultra-long chemical pipeline transportation system. BACKGROUND

[0002] At present, in the construction of silicon solar cell factories, liquid crystal display factories and integrated circuit factories, various acids, alkalis and other chemicals used in the cleaning process need to be transported through a pipeline system. A large part of the chemical liquid is flammable, explosive and toxic (such as hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, potassium hydroxide, etc.). Once a leak occurs, it will cause great harm to the human body, equipment, environment, etc. The chemical transportation system adopts a double-layer pipe construction method, that is, a double-layer pipe construction: including two layers of an inner pipe and an outer pipe, the inner pipe is a chemical transportation pipeline, and the outer pipe is a protection pipeline.

[0003] The chemical centralized supply system transports chemicals in the following manner: from the centralized liquid supply system equipment (i.e., the CDM cabinet), through the double-layer pipeline to the distribution disc (i.e., the VMB) in the workshop, and then from the VMB to multiple process machines. The traditional system equipment is one-to-one, that is, one set of CDM cabinet corresponds to one VMB. For large-scale new energy plant buildings and integrated circuit plant buildings, this one-to-one chemical transportation method cannot meet the needs of large-scale factories. One CDM supply system needs to be transported to multiple VMBs, even to dozens of VMBs, which requires three-way branches to be distributed on the main pipeline.

[0004] Due to the large amount of chemicals used, the PFA pipe required by the pipeline needs to be expanded to 1 inch to 1.5 inches in diameter to meet the flow demand of the process equipment chemicals. The PFA pipe is a soft pipe with a fixed length of 100m and 200m. The soft pipe has a large diameter, high hardness and large deflection, and is not easy to bend. When passing through the outer transparent PVC pipe system, the construction difficulty is great, and the length is too long. Even if the radius of the outer transparent PVC pipe hot-bent reaches 20 times the diameter of the pipe, when the inner PFA pipe penetrates the transparent PVC pipe, the inner wall of the transparent PVC pipe is under great stress, which causes the outer transparent PVC pipe to break, the resistance at the bending point is large, and it is also difficult to penetrate, and at the same time, the outer transparent PVC pipe that has been constructed in advance is completely scrapped.

[0005] For large factories, the chemical transportation distance is often 300m to 500m, and the PFA soft pipe with a fixed length of 100m and 200m needs an intermediate joint. SUMMARY

[0006] The purpose of the present application is to provide an ultra-long chemical pipeline transportation system to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] An ultra-long chemical pipeline delivery system, comprising:

[0009] A centralized liquid supply system device for storing hazardous chemicals;

[0010] A plurality of chemical distribution trays for transferring and distributing the hazardous chemicals;

[0011] A plurality of transparent PVC boxes, the top surface of the transparent PVC box is provided with two transparent PVC doors, the two transparent PVC doors are fixed on the transparent PVC box by four stainless steel hinges, and the two transparent PVC doors are respectively welded with PVC handles; the other surfaces of the transparent PVC box are also provided with a plurality of transparent PVC direct heads,

[0012] A hollow double-layer pipe for connecting the centralized liquid supply system device, the chemical distribution tray and the transparent PVC box, the hollow double-layer pipe comprises a transparent PVC pipe and a PFA hose,

[0013] The transparent PVC pipe is contained in the transparent PVC direct head, the PFA hose is contained in the transparent PVC pipe, and the diameter of the PFA hose is 1-1.5 inches,

[0014] The transparent PVC box is internally provided with a by-pass box, the by-pass box comprises a plurality of adapters, locking nuts and electronic valves, one end of the adapter is fixedly connected with the PFA hose through the locking nut, and the other end is welded with the electronic valve; the electronic valve is electrically connected with a PLC and a smoke sensor; the bottom surface of the transparent PVC box is also provided with a plurality of reagent boxes, and the reagent boxes contain reagents that can react with hazardous chemicals to generate smoke. The outer circular wall of the PFA hose extends outward to form a protrusion, the inner circular wall of the adapter extends inward to form a groove, and the inner circular wall of the adapter is also provided with an air inlet and an air outlet, one end of the air inlet is provided with a micro gas generator, and the generated gas enters from the air inlet and outputs from the air outlet.

[0015] The by-pass box comprises at least two adapters, and the angle between the adapters is 90° or 180°.

[0016] Further, the hazardous chemicals are one of hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid and potassium hydroxide, and the reagents include sodium bicarbonate and ammonium chloride.

[0017] Further, the chemical distribution tray is provided with a process user connection point.

[0018] Further, the bottom surface of the transparent PVC box is also provided with a transparent short pipe, the transparent short pipe contains an electric diaphragm valve, and the electric diaphragm valve is electrically connected with a single-chip microcomputer and a wireless signal transmitter.

[0019] Further, the transparent PVC door is provided with a pressure sensor, which is automatically opened when the pressure is too high.

[0020] Further, the micro gas generator generates inert gas.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] Due to the large amount of chemicals used, the required PFA pipe diameter of the transportation pipeline system is expanded to 1 inch to 1.5 inches to meet the flow demand of the process equipment chemicals. The hardness is large, the deflection is large, and it is not easy to bend, which causes the outer pipe transparent PVC pipe to break. The transparent PVC box and the by-pass box are arranged to solve the turning problem in the pipeline transportation process.

[0023] The present application connects the PFA hose by the by-pass box, protects the by-pass box outside with the transparent PVC box, connects the transparent PVC box with the transparent PVC pipe, forms a double-layer pipeline system of the outer layer of the hollow transparent PVC box and the inner layer of the PFA hose and the by-pass box, and connects the transparent PVC box with the chemical leakage alarm system, which can effectively prevent the harm caused by the free leakage of the chemical liquid.

[0024] The adapter in the by-pass box has a groove structure, an air inlet and an air outlet, which cooperate with the groove on the PFA hose to form an air seal structure, so that the whole device has good air tightness.

[0025] The transparent PVC box is connected with the transparent PVC pipe as an outer pipe system, has good visibility, can protect the by-pass box when the PFA by-pass box leaks, and can conveniently observe whether the PFA hose and the by-pass box leak in time through the transparent PVC box. The transparent PVC box is also provided with an electric valve, which transmits a signal to the leakage prevention system to detect the leakage as soon as possible and play a secondary protection role, thereby greatly reducing the harm.

[0026] The electronic valve is provided with a smoke sensor, when the dangerous chemicals drop and touch the reagent box, carbon dioxide or ammonia gas is generated to trigger the smoke sensor, at this time, the PLC controls the electronic valve to close to prevent continuous leakage.

[0027] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented as follows. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The present application is a schematic diagram of the ultra-long chemical pipeline transportation system structure.

[0029] Figure 2Structure diagram of embodiment 2 of the present application.

[0030] Figure 3 Structure diagram of embodiment 3 of the present application.

[0031] Figure 4 Structure diagram of embodiment 1 of the present application.

[0032] Figure 5 Structure diagram of embodiment 2 of the present application.

[0033] Figure 6 Structure diagram of embodiment 3 of the present application.

[0034] Figure 7 Enlarged view of point A of the present application.

[0035] Figure 8 Enlarged view of point B of the present application.

[0036] Figure 9 Sectional view of the adapter.

[0037] Reference signs:

[0038] 1 - transparent PVC box; 2 - transparent PVC direct head; 3 - transparent PVC pipe; 4 - PFA hose; 4-1 - protrusion; 5 - by-pass box; 6 - adapter, 6-1 - first adapter, 6-2 - second adapter, 6-3 - third adapter; 6-4 - fourth adapter, 6-5 - fifth adapter, 6-6 - sixth adapter, seventh adapter 6-7; 6-8 - groove; 6-9 - air inlet; 6-10 - air outlet;

[0039] 7 - locking nut; 8 - electric diaphragm valve; 9 - transparent short pipe; 10 - stainless steel hinge; 11 - transparent PVC door; 12 - PVC handle; 13 - chemical dispensing tray; 14 - process user connection point; 15 - electronic valve; 16 - reagent box; 17 - centralized liquid supply system equipment; 18 - hollow double-layer pipe. DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be further described in detail below in conjunction with the examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0041] An ultra-long chemical pipeline delivery system, which is provided with a dangerous chemical source by the centralized liquid supply system equipment 17, delivers the dangerous chemicals to a plurality of chemical dispensing trays 13 through the hollow double-layer pipe 18, and then the chemical dispensing trays 13 deliver the dangerous chemicals to various factories and laboratories. Since the distance between the centralized liquid supply equipment 17 and the chemical dispensing trays 13 is long and the flow is large, the transparent PVC box 1 is used for adjusting the transportation line during transportation.

[0042] The transparent PVC box 1 top surface is provided with two transparent PVC doors 11, which are fixed on the transparent PVC box 1 by four stainless steel hinges 10, and the two transparent PVC doors 11 are respectively welded with PVC handles 12; the other surfaces of the transparent PVC box 1 are also provided with a plurality of transparent PVC direct heads 2, the hollow double-layer pipe includes a transparent PVC pipe 3 and a PFA hose 4, the transparent PVC pipe 3 is contained in the transparent PVC direct head 2, the PFA hose 4 is contained in the transparent PVC pipe 3, the diameter of the PFA hose 4 is 1-1.5 inches, which is used to meet the high flow of dangerous chemical transportation, the transparent PVC direct head 2 is bonded with the transparent PVC pipe 3 to prevent leakage.

[0043] Please refer to Figures 7-9 , the outer circular wall of the PFA hose 4 extends outward to form a protrusion 4-1, the inner circular wall of the adapter 6 extends inward to form a groove 6-8, the inner circular wall of the adapter is also provided with an air inlet 6-9 and an air outlet 6-10, one end of the air inlet 6-9 is provided with a micro gas generator (not shown), the generated gas is inert gas, such as nitrogen and helium, the generated gas enters from the air inlet and outputs from the air outlet. When the gas enters the air inlet 6-9 along the F direction in the figure, it will flow to both ends of the PFA hose 4, because of the protrusion 4-1 on the PFA hose and the groove 6-8 on the adapter 6, the gas passes through the gap between the groove 6-8 and the protrusion 4-1 very slowly, which forms a gas seal with the box 5. Although the excess gas will leak along the G direction in the figure through the air outlet 6-10, the whole device has good airtightness, which can prevent the leakage of dangerous chemicals. Figure 8 Figure 8 The transparent PVC box 1 is provided with a box 5, which includes at least two adapters 6; the angle between the adapters 6 is 90° or 180°, a locking nut 7 and an electronic valve 15, one end of the adapter 6 is connected with the PFA hose 4 through the locking nut 7, and the other end is welded with the electronic valve 15; the box 5 is connected with a plurality of PFA hoses 4, so as to adjust the line, and the electronic valve 15 controls the opening and closing of the transportation pipeline.

[0044] The electronic valve 15 is electrically connected with a PLC and a smoke sensor; the bottom surface of the transparent PVC box 1 is also provided with a plurality of reagent boxes 16, which contain reagents that can react with dangerous chemicals to generate smoke.

[0045] The electronic valve 15 is electrically connected with a PLC and a smoke sensor; the bottom surface of the transparent PVC box 1 is also provided with a plurality of reagent boxes 16, which contain reagents that can react with dangerous chemicals to generate smoke.

[0046] ​The transported dangerous chemicals are one of hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid and potassium hydroxide, and the reagents include sodium bicarbonate and ammonium chloride. When the dangerous chemicals leak, they will react with the reagents to generate carbon dioxide or ammonia gas, the smoke alarm detects the smoke and transmits the signal to the PLC, and the PLC controls the electronic valve 15 to close to prevent the dangerous chemicals from continuing to leak.

[0047] The chemical distribution disc 13 is provided with a process user connection point 14. It is used to connect the laboratory or factory.

[0048] The bottom surface of the transparent PVC box 1 is also connected with a transparent short tube 9, and the transparent short tube 9 contains an electric diaphragm valve 8, which is electrically connected with a single-chip microcomputer (not shown) and a wireless signal transmitter (not shown). The transparent PVC door 11 is provided with a pressure sensor (not shown), which automatically opens when the pressure is too high; prevent explosion, improve the safety of the device.

[0049] The electric diaphragm valve 8 signals into the chemical leakage prevention alarm system to ensure the safe operation of the system. The electric diaphragm valve 8 is also provided with a liquid sensor, which is electrically connected with a single-chip microcomputer, and the single-chip microcomputer is connected with a chemical liquid leakage detection system through a wireless signal transmitter. When the sensor detects that there is a chemical leakage in the PVC box, the single-chip microcomputer transmits a signal to the chemical liquid leakage detection system, sends an alarm signal and the address, and closes the electric diaphragm valve 8.

[0050] The transparent PVC box 1 and the by-pass box 5 not only solve the problem of preventing the transparent PVC pipe 3 from breaking in the turning of the super-long pipeline transportation, but also play a transparent and visible role. The smoke sensor in the by-pass box 5 can generate gas when leakage occurs, thereby achieving the functions of alarm and closing the electronic valve, so that the whole transportation system has multiple early warning settings and is more secure. The adapter on the inside of the by-pass box 5 has a groove 6-9 structure and an air inlet 6-9 and an air outlet 6-10, which cooperates with the groove 4-1 on the PFA hose to form a gas seal structure, so that the whole device has good air tightness.

[0051] Example 1, please refer to Figure 1 and Figure 4 The adapter 6 is 3, the first adapter 6-1 is connected with the chemical distribution disc 13 downward, the second adapter 6-2 and the third adapter 6-3 are perpendicular to the first adapter 6-1, and the second adapter 6-2 and the third adapter 6-3 are on the same straight line. The dangerous chemicals are output from the chemical distribution disc 13, enter the by-pass box 5 through the first adapter 6-1, and then are output through the second adapter 6-2 and the third adapter 6-3.

[0052] Example 2, please refer to Figure 2 and Figure 5The adapter 6 is two, the fourth adapter 6-4 and the fifth adapter 6-5 are perpendicular, the dangerous chemicals are input from the fourth adapter 6-4 into the by-pass box 5, and then output from the fifth adapter 6-5.

[0053] Embodiment 3, please refer to Figure 3 and Figure 6 The adapter 6 is two, the sixth adapter 6-6 and the seventh adapter 6-7 are parallel, the dangerous chemicals are input from the sixth adapter 6-6 into the by-pass box 5, and then output from the seventh adapter 6-7.

[0054] The technical features of the above embodiments can be combined arbitrarily, for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0055] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An ultralong chemical pipeline system, characterized by, The utility model relates to a centralized liquid supply system equipment for storing dangerous chemicals, a plurality of chemical dispensing trays for transferring and dispensing the dangerous chemicals, a plurality of transparent PVC boxes, the top surface of the transparent PVC box is provided with two transparent PVC doors, the two transparent PVC doors are fixed on the transparent PVC box by four stainless steel hinges, and the two transparent PVC doors are respectively welded with PVC handles, the other surfaces of the transparent PVC box are also provided with a plurality of transparent PVC direct heads and hollow double-layer pipes for connecting the centralized liquid supply system equipment, the chemical dispensing trays and the transparent PVC boxes, the hollow double-layer pipe comprises a transparent PVC pipe and a PFA hose, the transparent PVC pipe is contained in the transparent PVC direct head, the PFA hose is contained in the transparent PVC pipe, the diameter of the PFA hose is 1-1.5 inches, the transparent PVC box is internally provided with a by-pass box, the by-pass box comprises a plurality of adapters, locking nuts and electronic valves, one end of the adapter is connected with the PFA hose through the locking nut and fixed, and the other end of the adapter is welded with the electronic valve, the electronic valve is electrically connected with a PLC and a smoke sensor, the bottom surface of the transparent PVC box is also provided with a plurality of reagent boxes containing reagents that can react with the dangerous chemicals to generate smoke, the outer circular wall of the PFA hose extends outward to form a protrusion, the inner circular wall of the adapter extends inward to form a groove, the inner circular wall of the adapter is also provided with an air inlet and an air outlet, one end of the air inlet is provided with a micro gas generator, the generated gas enters the air inlet and is output from the air outlet, the by-pass box comprises at least two adapters, the angle between the adapters is 90 degrees or 180 degrees, the bottom surface of the transparent PVC box is also provided with a transparent short pipe, the transparent short pipe contains an electric diaphragm valve, the electric diaphragm valve is electrically connected with a single-chip microcomputer and a wireless signal transmitter, the dangerous chemicals are one of hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid and potassium hydroxide, and the reagents include sodium bicarbonate and ammonium chloride. The chemical dispensing tray is provided with a process user connection point. The transparent PVC door is provided with a pressure sensor, which is automatically opened when the pressure is too high. The micro gas generator generates inert gas. ​ ​ ​ ​ 2. An ultralong chemical pipeline delivery system according to claim 1, wherein, ​ 3. An ultralong chemical pipeline delivery system according to claim 1, wherein, ​ 4. An ultralong chemical pipeline delivery system according to claim 1, wherein, ​ 5. An ultralong chemical pipeline delivery system according to claim 1, wherein, ​

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