Germanium tetrafluoride storage and transportation container

Abstract

A germanium tetrafluoride storage and transportation container belongs to the technical field of chemical equipment. The container comprises a container body, a container cover, a protective cover, a three-way connector, an L-shaped connector and a pressure gauge, the container body is of a hollow structure with an opening in the top, and the container cover covers the opening in the top of the container body; the protective cover is mounted at the top of the container body and is positioned above the container cover; and the lower ends of the three-way joint, the L-shaped joint and the pressure gauge are communicated with the interior of the container body through air pipes. The container is formed by scientific and reasonable design according to the special property of germanium tetrafluoride, germanium tetrafluoride can be safely and effectively stored and transported, great significance is achieved for producing and preparing high-purity germanium tetrafluoride, and the container has the advantages that germanium tetrafluoride gas and condensed liquid can be stored and transported; the universal wheels are detachable, and the forklift bottom support is arranged, so that more portable transportation is provided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical equipment, and particularly relates to a safe and reliable germanium tetrafluoride storage and transportation container. BACKGROUND

[0002] Germanium tetrafluoride (GeF4) has very special chemical properties: it is a colorless, pungent garlic odor gas at normal temperature and pressure, and produces a large amount of white smoke when it meets water in the air. It decomposes in water and can erode mercury. Completely dry germanium tetrafluoride gas does not erode glass, but can erode lubricating grease. Germanium tetrafluoride gas has a stimulating effect on the eyes, skin, upper respiratory mucosa and lungs, and is strongly corrosive. Inhaling the gas can cause pulmonary edema and cause great harm to the human body. Leakage can release toxic gas, pollute the air, and harm human health and the ecological environment. After entering the water, the generated hydrofluoric acid and germanic acid can pollute the water source and affect aquatic organisms.

[0003] Germanium tetrafluoride plays an important role in semiconductors, optical fiber communication, chemical synthesis, optical materials, scientific research and nuclear industry. Its high reactivity, strong fluorination ability, volatility, coordination ability, thermal stability, high electronegativity and uniqueness make it a key material in multiple high-tech fields, and the future market demand is large. Therefore, it is crucial to design a safe and effective container for storing and transporting high-purity germanium tetrafluoride. SUMMARY

[0004] The main purpose of the utility model is to provide a safe and reliable germanium tetrafluoride storage and transportation container.

[0005] The germanium tetrafluoride storage and transportation container of the utility model, characterized in that the transportation container comprises a container body, a container cover, a protective cover, a tee joint, an L-shaped joint and a pressure gauge, the container body is hollow inside and has an opening at the top, and the container cover covers the opening at the top of the container body; the protective cover is installed at the top of the container body and located above the container cover; the tee joint, the L-shaped joint and the pressure gauge are all installed on the container cover and are all communicated with the inside of the container body through air pipes at the lower end.

[0006] The container body upper portion is also provided with a handrail support, which is arranged in the protective cover and located above the container cover.

[0007] The container body bottom is provided with a bottom support and a clamping groove, the bottom support is fixed at the bottom of the container body, the clamping groove is installed at the edge of the bottom of the container body and located below the bottom support, when the container body is transported by a forklift, the front fork of the forklift is inserted from above the clamping groove, and the container body can be lifted by lifting the bottom support.

[0008] The two ports of the upper end of the tee joint are respectively an inflation port and an exhaust port, a needle valve is arranged on the inflation port and the exhaust port, a gas pipe is connected to the lower end of the tee joint, the lower end of the gas pipe extends to a lower position in the container body, and the gas pipe is mainly used for cleaning and vacuumizing the inside of the container body.

[0009] The port of the upper end of the L-shaped joint is an exhaust port, a needle valve is arranged on the exhaust port, a gas pipe is connected to the lower end of the L-shaped joint, the lower end of the gas pipe is located at an upper position in the container body, and the gas pipe is mainly used for exhaust gas discharge and germanium tetrafluoride filling.

[0010] The lower end of the pressure gauge is connected to a gas pipe, and the lower end of the gas pipe is located at an upper position in the container body.

[0011] The upper and lower parts of the outer side of the container body are respectively provided with ball valves, the ball valves are in communication with the inside of the container body, the lower ball valve is a condensed liquid inlet, and the upper ball valve is a condensed liquid outlet.

[0012] A universal wheel is arranged at the bottom of the clamping groove, and the container body is convenient to move.

[0013] Compared with the storage container of patent application No. 202121251530.5, the device can observe the pressure and filling condition of the gas in the container through the pressure gauge; compared with the storage container of patent application No. 202121251530.5, the device is more convenient to move, and a container hand support and a universal wheel can be selected.

[0014] The germanium tetrafluoride storage and transportation container is scientifically and rationally designed according to the special properties of germanium tetrafluoride, can safely and effectively store and transport germanium tetrafluoride, has great significance for production and preparation of high-purity germanium tetrafluoride, and has the advantages that the container can be used for storage and transportation of germanium tetrafluoride gas and condensed liquid; the universal wheel can be disassembled and installed, and a forklift bottom support is provided, so that more portable transportation is provided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Among them, the container body 1, the protective cover 2, the tee joint 3, the L-shaped joint 4, the pressure gauge 5, the gas pipe 6, the hand support 7, the bottom support 8, the clamping groove 9, the inflation port 10, the exhaust port 11, the exhaust port 12, the ball valve 13. DETAILED DESCRIPTION

[0017] Embodiment 1: A kind of germanium tetrafluoride storage and transport container, including container body, container cover, protective cover, tee joint, L-shaped joint and pressure gauge, container body is hollow, the structure of opening at top, container cover covers the opening on the top of container body;Protective cover is installed on the top of container body, and is located above container cover;Tee joint, L-shaped joint and pressure gauge are all installed on container cover, and the lower end is all communicated with the inside of container body by gas pipe;Two ports of tee joint upper end are inflation port and exhaust port respectively, and a needle valve is installed on inflation port and exhaust port respectively, tee joint lower end is connected with a gas pipe, and the lower end of the gas pipe extends to the lower position in container body, which is mainly used for cleaning and vacuumizing the inside of container body;The port of L-shaped joint upper end is exhaust port, and a needle valve is installed on exhaust port, L-shaped joint lower end is connected with a gas pipe, and the lower end of the gas pipe is located at the upper position in container body, which is mainly used for tail gas discharge and germanium tetrafluoride filling;Pressure gauge lower end is connected with a gas pipe, and the lower end of the gas pipe is located at the upper position in container body.

[0018] Handrail support is further provided on the upper portion of container body, and the handrail support is arranged in the protective cover and above the container cover.

[0019] Bottom support and clamping groove are arranged on the bottom of container body, the bottom support is fixed on the bottom of container body, the clamping groove is installed on the edge of the bottom of container body and below the bottom support, when forklift is used to transport container body, the front fork of forklift is inserted from above the clamping groove, and the container body can be lifted by lifting the bottom support, and universal wheel is installed on the bottom of clamping groove, which facilitates the movement of container body.

[0020] Ball valve is arranged on the upper portion and lower portion of the outer side of container body respectively, the ball valve is communicated with the inside of container body, the lower ball valve is the inlet of condensed liquid, and the upper ball valve is the outlet of condensed liquid.

[0021] Thread connection is adopted between container protective cover and container body, the container protective cover can be fixed on the container to protect the container valve, the thread position is located between the container port and the container handrail support, the container protective cover is mainly used for protecting the container valve, preventing the gas cylinder valve from being damaged due to collision, causing leakage, endangering personal safety and polluting the environment, and causing loss.

[0022] The material of container body and container cover is mirror-polished hastelloy or 316L stainless steel. The height of container body is 800-1200 mm, the diameter is 300-500 mm, and the thickness is 4-7 mm. Preferably, the container valve adopts corrosion-resistant valve head, specifically diaphragm valve and needle valve with good sealing performance.

[0023] The container has the following four use methods:

[0024] 1. Fill in germanium tetrafluoride gas: connect the exhaust port to the tail gas absorption bottle through a corrosion-resistant pipeline, and then put the tail gas into the spray tower after absorption by the absorption liquid; connect the gas inlet of the three-way joint to nitrogen blowing, and connect the exhaust port to the vacuum pump; after connection, open the exhaust port, and at the same time, open the gas inlet to pass in helium, wash the inside of the container body for 15-20 minutes; after washing, close the exhaust port, connect the germanium tetrafluoride filling pipe to the exhaust port, and open the exhaust port; then close the gas inlet, and draw a vacuum through the exhaust port for 5-10 minutes, and then close the exhaust port; open the germanium tetrafluoride filling port, and the germanium tetrafluoride gas enters the container through the exhaust port, and the change of the pressure gauge is observed; after the container body is filled with germanium tetrafluoride, the exhaust port is closed; finally, the protective cover is tightened on the container body along the threads, and the filling is completed; four universal wheels are installed at the bottom of the container body for convenient transportation;

[0025] 2. Condensed liquid: connect the exhaust port to the tail gas absorption bottle through a corrosion-resistant pipeline, and then put the tail gas into the spray tower after absorption by the absorption liquid; connect the gas inlet to nitrogen blowing, and connect the exhaust port to the vacuum pump; after connection, open the exhaust port, and at the same time, open the gas inlet to pass in helium, wash the inside of the container body for 15-20 minutes; after washing, close the exhaust port, connect the germanium tetrafluoride filling pipe to the exhaust port, and open the exhaust port; close the gas inlet, and then open the exhaust port, and draw a vacuum for 5-10 minutes, and then close the exhaust port; connect the condensed liquid inlet to the outlet of the condenser, and the condensed liquid in the condenser enters the container body through the condensed liquid inlet; after filling is completed, close the condensed liquid inlet;

[0026] 3. When connecting the rectifying tower as a germanium tetrafluoride storage container, when the temperature is lower than -36.5℃, the germanium tetrafluoride changes from gas to solid, the container body is vacuumed to make the inside of the container body in a negative pressure state, so that the germanium tetrafluoride under normal pressure and medium pressure, i.e. 0.1-3 MPa, can automatically flow into the container body; the condensed liquid inlet and outlet on the side wall of the container body are connected to a heating and refrigeration circulating machine, after the germanium tetrafluoride in the rectifying tower completes the rectification process, the temperature of the product tank in the rectifying tower is higher than that in the container body by adjusting the temperature of the condensed liquid, so that the germanium tetrafluoride in the product tank can flow into the container body more quickly, and the filling efficiency is improved; the product tank and the container body are directly connected, which can avoid secondary pollution caused by machines such as compressors or dry pumps;

[0027] 4. As the four fluorinated germanium subpackaging container connects the storage cylinder, the suction port is directly connected to the storage cylinder; the condensate liquid inlet and outlet on the side wall of the container body are respectively connected to the heating refrigeration cycle machine, through heating, the temperature in the container body is higher than the storage cylinder, the suction port and the inlet of the storage cylinder are opened, because of the temperature change, the pressure difference is generated, the four fluorinated germanium is rushed into the storage cylinder, the pressure change is observed, after being filled, the suction port and the inlet of the storage cylinder are closed, and the cover is stored; the storage cylinder and the container body are directly connected, and secondary pollution caused by the use of compressor or dry pump and the like machines can be avoided.

Claims

1. A germanium tetrafluoride storage and transport container, characterized in that... The transport container includes a container body, a container lid, a protective cover, a tee connector, an L-shaped connector, and a pressure gauge. The container body is hollow inside with an open top, and the container lid covers the opening at the top of the container body. The protective cover is installed on the top of the container body and is located above the container lid. The tee connector, L-shaped connector, and pressure gauge are all installed on the container lid, and their lower ends are connected to the interior of the container body through air pipes.

2. The germanium tetrafluoride storage and transport container as described in claim 1, characterized in that... The container body is also provided with a handrail support on the upper part, which is located inside the protective cover and above the container lid.

3. The germanium tetrafluoride storage and transport container as described in claim 1, characterized in that... The container body has a base and a slot at its bottom. The base is fixed to the bottom of the container body, and the slot is installed at the bottom edge of the container body and located below the base.

4. The germanium tetrafluoride storage and transport container as described in claim 1, characterized in that... The two ports at the upper end of the three-way connector are an inflation port and an air extraction port, respectively. A needle valve is installed on each of the inflation port and the air extraction port. An air tube is connected to the lower end of the three-way connector, and the lower end of the air tube extends to the lower part of the container body.

5. The germanium tetrafluoride storage and transport container as described in claim 1, characterized in that... The upper end of the L-shaped connector is an exhaust port, and a needle valve is installed on the exhaust port. The lower end of the L-shaped connector is connected to an air tube, and the lower end of the air tube is located in the upper part of the container body.

6. The germanium tetrafluoride storage and transport container as described in claim 1, characterized in that... The pressure gauge is connected to a trachet at its lower end, and the lower end of the trachet is located in the upper part of the container body.

7. The germanium tetrafluoride storage and transport container as described in claim 1, characterized in that... Ball valves are respectively installed on the upper and lower parts of the outer side of the container body. The ball valves are connected to the inside of the container body. The lower ball valve is the condensate inlet and the upper ball valve is the condensate outlet.

8. The germanium tetrafluoride storage and transport container as described in claim 3, characterized in that... The bottom of the card slot is equipped with casters.

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