High-safety gas protection device for aluminum-lithium alloy spray forming

Abstract

The utility model provides a high-safety gas protection device for aluminum-lithium alloy spray forming, which comprises a cabinet body, a gas cylinder, a gas inlet pipe, a gas outlet pipe, a gas outlet pipe and a gas outlet pipe, wherein the cabinet body is internally provided with a gas cylinder for storing inert gas; an air collecting cover arranged above the gas cylinder is arranged on the upper side of the inner wall of the cabinet body, the air collecting cover comprises a transverse plate arranged on the upper side of the inner wall of the cabinet body, a pair of inclined plates are symmetrically arranged on the two sides of the top of the transverse plate, and vertical plates attached to the inner side wall of the cabinet body are arranged at the bottoms of the inclined plates; a fan is arranged at the top of the cabinet body, a connecting pipe which is inserted into the transverse plate and communicates with the interior of the cabinet body is arranged at the bottom of the fan, an air duct connecting pipe is arranged at the top of the fan, and a gas sensor which is inserted into the connecting pipe and used for detecting inert gas exhausted by gas leakage of the gas cylinder is arranged in the cabinet body. And a PLC (Programmable Logic Controller) used for driving the fan to work when the gas sensor detects the inert gas is arranged in the cabinet body. The high-pressure inert gas leakage detection cabinet is reasonable in structure, high in high-pressure inert gas leakage detection time, high in discharge speed and high in safety, and the gas cylinder is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the production of aluminum-lithium alloy, in particular to a gas protection device for aluminum-lithium alloy spray forming with high safety. Background Art

[0002] Lithium is the lightest metal element in the world. When lithium is added to metallic aluminum as an alloying element, an aluminum-lithium alloy is formed. After the addition of lithium, the specific gravity of the alloy can be reduced and the rigidity can be increased, while still maintaining high strength, good corrosion resistance and fatigue resistance, as well as suitable ductility. At present, the forming method of aluminum-lithium alloy mainly adopts spray forming. Spray forming is a process in which a high-pressure inert gas is used to atomize the alloy liquid flow into fine molten droplets, which fly and cool under high-speed airflow and are deposited into a blank before they are completely solidified. It has various advantages of rapid solidification technology, such as fine grains of the obtained material, uniform structure, and the ability to inhibit macro-segregation. When producing aluminum-lithium alloy, the high-pressure inert gas needs to be protected. After the high-pressure inert gas is stored in a gas cylinder, it is placed inside a gas protection device for aluminum-lithium alloy spray forming, i.e., a storage cabinet, for protection.

[0003] In the prior art, when the existing gas protection device for aluminum-lithium alloy spray forming leaks in the gas cylinder, the storage cabinet is generally used to protect the gas cylinder, and the leakage of the high-pressure inert gas cannot be detected in time and discharged quickly, resulting in excessive concentration of inert gas, causing suffocation of workers, and low safety. In addition, when fixing the gas cylinder, a spring is generally used for compression and fixing. It takes a lot of force to pull the spring, which is not convenient for disassembling and assembling the gas cylinder. Now, a gas protection device for aluminum-lithium alloy spray forming with high safety is urgently needed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a gas protection device for aluminum-lithium alloy injection molding with high safety, so as to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure, timely high-pressure inert gas leakage detection and fast discharge speed, high safety, and convenient disassembly and assembly of gas cylinders.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a gas protection device for aluminum-lithium alloy spray forming with high safety, comprising:

[0006] A cabinet, a door body is arranged on the side wall of the cabinet, a rotating hinge is arranged between the cabinet and the door body, a gas cylinder for storing inert gas is arranged inside the cabinet, and an exhaust pipe penetrating the side wall of the cabinet is arranged on the gas cylinder;

[0007] An air collecting hood is arranged on the upper side of the inner wall of the cabinet and is placed above the gas cylinder. The air collecting hood includes a horizontal plate arranged on the upper side of the inner wall of the cabinet, a pair of inclined plates are symmetrically arranged on both sides of the top of the horizontal plate, and a vertical plate is arranged at the bottom of the pair of inclined plates to fit the inner wall of the cabinet;

[0008] A fan is arranged on the top of the cabinet, a connecting pipe is arranged at the bottom of the fan and is inserted into the inside of the horizontal plate and connected with the inside of the cabinet, an air duct connecting pipe is arranged on the top of the fan, a gas sensor is arranged inside the cabinet and is inserted into the connecting pipe and is used to detect the inert gas discharged from the gas cylinder leakage, and a PLC controller is arranged inside the cabinet and is used to drive the fan to work when the gas sensor detects the inert gas.

[0009] Furthermore, mounting bolts are provided between the vertical plate and the inner wall of the cabinet.

[0010] Furthermore, an alarm is arranged on the side wall of the cabinet, and a mounting groove is provided at a position on the upper side of the inner wall of the cabinet corresponding to the alarm, and the gas sensor and the PLC controller are both placed inside the mounting groove.

[0011] Furthermore, an A / D converter is provided at the input end of the PLC controller, a D / A converter is provided at the output end of the PLC controller, the gas sensor is electrically connected to the A / D converter, and the fan and the alarm are electrically connected to the D / A converter respectively.

[0012] Furthermore, a mounting seat for clamping the gas cylinder is provided inside the cabinet;

[0013] The mounting base includes a square plate arranged on the inner wall of the cabinet, an embedding groove is provided on the side of the square plate close to the door body, a clamping plate is provided inside the embedding groove, a clamping hole is provided at the connection between the clamping plate and the square plate, two semicircular clamping rings are provided inside the clamping hole, the inner wall of the clamping ring is tightly fitted with the side wall of the gas cylinder, and a clamping bolt is provided between the clamping plate and the square plate.

[0014] Furthermore, the clamping ring is made of rubber or silicone.

[0015] Furthermore, a pair of positioning grooves are symmetrically arranged inside the square plate and are placed on both sides of the embedding groove and are connected to the embedding groove. Positioning blocks matching the positioning grooves are arranged on the opposite side walls of the clamping plate.

[0016] Furthermore, extension plates are symmetrically arranged on two opposite side walls of the square plate, fixing bolts are arranged between the extension plates and the inner wall of the cabinet, and the side walls of the extension plates are in contact with the inner wall of the cabinet.

[0017] According to the utility model, a gas protection device for aluminum-lithium alloy injection molding with high safety is provided. By using a wind collecting hood, when the inert gas inside the gas cylinder leaks, the inert gas is quickly concentrated and guided to the inside of the connecting pipe under the action of the wind collecting hood, and is detected by the gas sensor on the connecting pipe. The inert gas concentration speeds up the detection speed. When the inert gas is detected, the signal is transmitted to the PLC controller, so that the PLC controller drives the fan to discharge the leaked inert gas to the outside through the air duct connecting pipe along the air duct. Under the action of the wind collecting hood, the leaked inert gas can be concentrated to the inside of the connecting pipe, and the discharge speed of the leaked inert gas can be accelerated. The leakage of high-pressure inert gas can be detected in time and discharged quickly to avoid human inhalation, thereby improving the safety of use.

[0018] By using the mounting seat, the gas cylinder is placed inside the cabinet and its side wall is fitted with the semicircular clamping ring inside the clamping hole of the square plate, and then the clamping plate is inserted into the embedded groove so that the semicircular clamping ring inside the clamping hole of the clamping plate is fitted with the other side of the gas cylinder, thereby completing the clamping and fixing of the gas cylinder. Finally, the clamping bolts are used to fix the clamping plate and the square plate, which facilitates the installation of the gas cylinder. Similarly, when the gas cylinder needs to be taken out, it only needs to loosen the clamping bolts to take out the clamping plate and the gas cylinder can be disassembled and taken out, thereby facilitating the disassembly and assembly of the gas cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 A three-dimensional diagram of a gas protection device for aluminum-lithium alloy spray forming with high safety according to an embodiment of the utility model;

[0021] Figure 2 It is a front cross-sectional view of a gas protection device for aluminum-lithium alloy spray forming with high safety according to one embodiment of the utility model;

[0022] Figure 3 A three-dimensional diagram of a wind collecting hood in a gas protection device for aluminum-lithium alloy spray forming with high safety according to an embodiment of the utility model;

[0023] Figure 4 A three-dimensional diagram of a mounting seat in a gas protection device for aluminum-lithium alloy spray forming with high safety according to an embodiment of the utility model;

[0024] Figure 5 It is a fragmentary stereogram of a mounting seat in a gas protection device for aluminum-lithium alloy spray forming with high safety according to one embodiment of the utility model;

[0025] Figure 6 A schematic diagram of a control system according to an embodiment of the utility model;

[0026] In the figure: 1. cabinet; 2. door; 3. alarm; 4. fan; 5. air duct connecting pipe; 6. rotating hinge; 7. connecting pipe; 8. air collecting hood; 81. horizontal plate; 82. inclined plate; 83. vertical plate; 831. mounting bolt; 9. gas cylinder; 91. exhaust pipe; 10. mounting seat; 101. clamping ring; 102. clamping plate; 1021. positioning block; 103. square plate; 1031. extension plate; 1032. positioning groove; 1033. embedding groove; 104. fixing bolt; 105. clamping bolt; 106. clamping hole; 11. gas sensor; 12. mounting groove; 13. PLC controller. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figure 1 and Figure 3 As shown, the utility model provides a technical solution: a gas protection device for aluminum-lithium alloy spray forming with high safety, comprising:

[0029] A cabinet 1, a door 2 is disposed on the side wall of the cabinet 1, a rotating hinge 6 is disposed between the cabinet 1 and the door 2, a gas cylinder 9 for storing inert gas is disposed inside the cabinet 1, and an exhaust pipe 91 penetrating the side wall of the cabinet 1 is disposed on the gas cylinder 9;

[0030] An air collecting hood 8 placed above the gas cylinder 9 is provided on the upper side of the inner wall of the cabinet 1. The air collecting hood 8 includes a horizontal plate 81 provided on the upper side of the inner wall of the cabinet 1. A pair of inclined plates 82 are symmetrically provided on both sides of the top of the horizontal plate 81. The bottom of the pair of inclined plates 82 are both provided with vertical plates 83 that fit with the inner wall of the cabinet 1. This design facilitates the fit with the inner wall of the cabinet 1 by using the vertical plates 83, so that the leaked inert gas is guided to the inclined plates 82, and under the action of the inclined plates 82, the leaked inert gas is guided to the horizontal plate 81 and concentrated into the connection pipe 7. The air collecting hood 8 fits with the inner wall of the cabinet 1 on the side away from the door body 2;

[0031] The cabinet 1 is provided with a fan 4 at the top, a connecting pipe 7 inserted into the inside of the horizontal plate 81 and connected to the inside of the cabinet 1 is provided at the bottom of the fan 4, an air duct connecting pipe 5 is provided at the top of the fan 4, a gas sensor 11 inserted into the connecting pipe 7 and used to detect the inert gas discharged from the gas cylinder 9 leaking is provided inside the cabinet 1, and a PLC controller 13 for driving the fan 4 to work when the gas sensor 11 detects the inert gas is provided inside the cabinet 1. This design uses a wind collecting hood 8. When the inert gas inside the gas cylinder 9 leaks, the inert gas is quickly concentrated and directed to the joint under the action of the wind collecting hood 8. The inside of the connecting pipe 7 is connected and detected by the gas sensor 11 on the connecting pipe 7. The inert gas concentration speeds up the detection speed. When the inert gas is detected, the signal is transmitted to the PLC controller 13, so that the PLC controller 13 drives the fan 4 to discharge the leaked inert gas to the outside through the air duct connecting pipe 5 along the air duct. Under the action of the wind collecting hood 8, the leaked inert gas can be concentrated to the inside of the connecting pipe 7, and the discharge speed of the leaked inert gas can be accelerated. The leakage of high-pressure inert gas can be detected in time and discharged quickly to avoid human inhalation, thereby improving the safety of use.

[0032] Reference Figure 2 and Figure 3 A mounting bolt 831 is provided between the vertical plate 83 and the inner wall of the cabinet 1. This design facilitates the connection and fixation of the vertical plate 83 and the cabinet 1 by using the mounting bolt 831, thereby facilitating the connection and fixation of the air collecting hood 8 and the cabinet 1.

[0033] Reference Figure 1 and Figure 2 An alarm 3 is arranged on the side wall of the cabinet 1, and an installation groove 12 is opened at a position corresponding to the alarm 3 on the upper side of the inner wall of the cabinet 1. The gas sensor 11 and the PLC controller 13 are both placed inside the installation groove 12. This design facilitates the installation of the gas sensor 11 and the PLC controller 13. When the gas sensor 11 detects the leakage of inert gas, the signal is transmitted to the PLC controller 13, and the PLC controller 13 enables the alarm 3 to issue a warning to remind the personnel, thereby further improving the safety of use.

[0034] Reference Figure 6 An A / D converter is provided at the input end of the PLC controller 13, and a D / A converter is provided at the output end of the PLC controller 13. The gas sensor 11 is electrically connected to the A / D converter, and the fan 4 and the alarm 3 are electrically connected to the D / A converter respectively. This design facilitates the connection of the gas sensor 11, the fan 4 and the alarm 3 to the PLC controller 13 respectively.

[0035] Reference Figure 2 , Figure 4 and Figure 5, a mounting seat 10 for clamping the gas cylinder 9 is provided inside the cabinet 1; the mounting seat 10 includes a square plate 103 arranged on the inner wall of the cabinet 1, and an embedding groove 1033 is provided on the side of the square plate 103 close to the door body 2, and a clamping plate 102 is provided inside the embedding groove 1033, and a clamping hole 106 is provided at the connection between the clamping plate 102 and the square plate 103, and two semicircular clamping rings 101 are provided inside the clamping hole 106, and the inner wall of the clamping ring 101 is tightly fitted with the side wall of the gas cylinder 9, and a clamping bolt 105 is provided between the clamping plate 102 and the square plate 103. This design uses the mounting seat 10 to place the gas cylinder 9 inside the cabinet 1 and its side The semicircular clamping ring 101 inside the clamping hole 106 of the wall and the square plate 103 fits together, and then the clamping plate 102 is inserted into the embedding groove 1033, so that the semicircular clamping ring 101 inside the clamping hole 106 of the clamping plate 102 fits with the other side of the gas cylinder 9, thereby completing the clamping and fixing of the gas cylinder 9, and finally, the clamping bolt 105 is used to fix the clamping plate 102 and the square plate 103, which facilitates the installation of the gas cylinder 9. Similarly, when the gas cylinder 9 needs to be taken out, it is only necessary to loosen the clamping bolt 105 to take out the clamping plate 102, and the gas cylinder 9 can be disassembled and taken out, thereby facilitating the disassembly and assembly of the gas cylinder 9.

[0036] Reference Figure 4 and Figure 5 The clamping ring 101 is made of rubber or silicone. This design is convenient for protecting the gas cylinder 9 from being pinched and hurt, and at the same time plays a certain buffering role for the gas cylinder 9.

[0037] Reference Figure 5 A pair of positioning grooves 1032 are symmetrically arranged on both sides of the embedding groove 1033 and connected to the embedding groove 1033 inside the square plate 103, and positioning blocks 1021 matching the positioning groove 1032 are arranged on the opposite side walls of the clamping plate 102. This design uses the positioning blocks 1021 to connect with the positioning groove 1032 to speed up the insertion of the clamping plate 102 into the embedding groove 1033, thereby speeding up the installation and fixation of the gas cylinder 9. Extension plates 1031 are symmetrically arranged on the opposite side walls of the square plate 103, and fixing bolts 104 are arranged between the extension plate 1031 and the inner wall of the cabinet 1. The side wall of the extension plate 1031 fits with the inner wall of the cabinet 1. This design uses the extension plate 1031 and the fixing bolts 104 to facilitate the installation and fixation of the mounting base 10 inside the cabinet 1.

[0038] Reference Figure 1-Figure 6As an embodiment of the present utility model: when the inert gas inside the gas cylinder 9 leaks, by using the wind collecting hood 8, when the inert gas inside the gas cylinder 9 leaks, the inert gas is guided along the vertical plate 83 to the inclined plate 82 under the action of the wind collecting hood 8, and the leaked inert gas is guided to the horizontal plate 81 under the action of the inclined plate 82 and concentrated into the connecting pipe 7, and detected by the gas sensor 11 on the connecting pipe 7. The inert gas concentration speeds up the detection speed. When the inert gas is detected, the signal is transmitted to the PLC controller 13, so that the PLC controller 13 drives the fan 4 to work and discharge the leaked inert gas through the air duct connecting pipe 5 along the air duct to the outside. Under the action of the wind collecting hood 8, the leaked inert gas can be concentrated inside the connecting pipe 7, speeding up the detection and discharge speed of the leaked inert gas, and can timely detect the leakage of high-pressure inert gas and quickly discharge it to avoid human inhalation, thereby improving the safety of use. At the same time, the PLC controller 13 enables the alarm 3 to work and issue a warning to remind personnel to pay attention, thereby further improving safety.

[0039] When the gas cylinder 9 needs to be disassembled and assembled, when it needs to be installed, by using the mounting seat 10, first place the gas cylinder 9 at a suitable position inside the cabinet 1, so that the side wall of the gas cylinder 9 fits with the semicircular clamping ring 101 inside the clamping hole 106 of the square plate 103, and then insert the clamping plate 102 into the embedded groove 1033 under the action of the positioning block 1021 and the positioning groove 1032, speeding up the installation speed, so that the semicircular clamping ring 101 inside the clamping hole 106 of the clamping plate 102 fits with the other side of the gas cylinder 9, thereby completing the clamping and fastening of the gas cylinder 9. The fixing function is performed, and finally the clamping bolts 105 are used to fix the clamping plate 102 and the square plate 103, which facilitates the installation of the gas cylinder 9. Finally, the exhaust pipe 91 is connected to the gas cylinder 9. The connection between the exhaust pipe 91 and the gas cylinder 9 is a prior art. Similarly, when the gas cylinder 9 needs to be taken out, the exhaust pipe 91 is first separated from the gas cylinder 9, which is a prior art. Then, only the clamping bolts 105 need to be loosened to remove the clamping plate 102, and the gas cylinder 9 can be disassembled and taken out, thereby facilitating the disassembly and assembly of the gas cylinder 9 and improving the practicality of the utility model.

[0040] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A highly safe gas protection device for aluminum-lithium alloy spray forming, comprising: A cabinet (1), a door (2) being arranged on a side wall of the cabinet (1), a rotating hinge (6) being arranged between the cabinet (1) and the door (2), a gas cylinder (9) for storing inert gas being arranged inside the cabinet (1), and an exhaust pipe (91) penetrating the side wall of the cabinet (1); It is characterized in that An air collecting hood (8) is arranged on the upper side of the inner wall of the cabinet (1) and is placed above the gas cylinder (9); the air collecting hood (8) comprises a horizontal plate (81) arranged on the upper side of the inner wall of the cabinet (1); a pair of inclined plates (82) are symmetrically arranged on both sides of the top of the horizontal plate (81); and vertical plates (83) that are in contact with the inner wall of the cabinet (1) are arranged at the bottom of the pair of inclined plates (82); A fan (4) is arranged on the top of the cabinet (1); a connecting pipe (7) is arranged on the bottom of the fan (4) and is inserted into the interior of the horizontal plate (81) and is connected to the interior of the cabinet (1); an air duct connecting pipe (5) is arranged on the top of the fan (4); a gas sensor (11) is arranged inside the cabinet (1) and is inserted into the interior of the connecting pipe (7) and is used to detect inert gas discharged from the gas cylinder (9); and a PLC controller (13) is arranged inside the cabinet (1) and is used to drive the fan (4) to work when the gas sensor (11) detects inert gas.

2. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 1, characterized in that: Mounting bolts (831) are provided between the vertical plate (83) and the inner wall of the cabinet (1).

3. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 1, characterized in that: An alarm (3) is provided on the side wall of the cabinet (1), and a mounting groove (12) is provided at a position corresponding to the alarm (3) on the upper side of the inner wall of the cabinet (1), and the gas sensor (11) and the PLC controller (13) are both placed inside the mounting groove (12).

4. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 3, characterized in that: The input end of the PLC controller (13) is provided with an A / D converter, the output end of the PLC controller (13) is provided with a D / A converter, the gas sensor (11) is electrically connected to the A / D converter, and the fan (4) and the alarm (3) are electrically connected to the D / A converter respectively.

5. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 1, characterized in that: A mounting seat (10) for clamping the gas cylinder (9) is arranged inside the cabinet (1); The mounting seat (10) comprises a square plate (103) arranged on the inner wall of the cabinet (1); an embedding groove (1033) is provided on a side of the square plate (103) close to the door body (2); a clamping plate (102) is provided inside the embedding groove (1033); a clamping hole (106) is provided at the connection between the clamping plate (102) and the square plate (103); two semicircular clamping rings (101) are provided inside the clamping hole (106); the inner wall of the clamping ring (101) is tightly fitted with the side wall of the gas cylinder (9); and a clamping bolt (105) is provided between the clamping plate (102) and the square plate (103).

6. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 5, characterized in that: The clamping ring (101) is made of rubber or silicone.

7. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 5, characterized in that: A pair of positioning grooves (1032) are symmetrically arranged inside the square plate (103) and are located on both sides of the embedding groove (1033) and are connected to the embedding groove (1033). Positioning blocks (1021) matching the positioning grooves (1032) are arranged on the opposite side walls of the clamping plate (102).

8. A highly safe gas protection device for aluminum-lithium alloy spray forming according to claim 5, characterized in that: Extension plates (1031) are symmetrically arranged on two opposite side walls of the square plate (103), fixing bolts (104) are arranged between the extension plates (1031) and the inner wall of the cabinet (1), and the side walls of the extension plates (1031) are in contact with the inner wall of the cabinet (1).

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