Energy-saving efficient partial pressure control device of vacuum brazing furnace

Abstract

The utility model discloses an energy-saving efficient partial pressure control device of a vacuum brazing furnace, which belongs to the technical field of vacuum brazing furnaces and comprises a pressure pump, a first multi-way piece and a second multi-way piece. The output end of the pressure pump is fixedly connected to the input end of the first electromagnetic valve through the other section of front connecting pipe, the output end of the first electromagnetic valve is fixedly connected to one end of a vertical pipe of the first multi-way piece through the other section of front connecting pipe and the flange assembly, and the first multi-way piece and the second multi-way piece each comprise a vertical pipe and a transverse pipe. The opposite sides of transverse pipes of the first multi-way piece and the second multi-way piece are fixedly connected through a plurality of straight pipes, and the other end of a vertical pipe of the second multi-way piece is fixedly connected to the input end of a second electromagnetic valve through a rear connecting pipe and a flange assembly. And the output end of the second electromagnetic valve is fixedly connected to the input end of the vacuum brazing furnace through another section of rear connecting pipe.

Description

Technical Field

[0001] This invention belongs to the field of vacuum brazing furnace technology, specifically relating to an energy-saving and high-efficiency pressure control device for a vacuum brazing furnace. Background Technology

[0002] A brazing furnace is a device used for brazing and bright heat treatment of metals. It is suitable for mass production of small and medium-sized stainless steel parts (tableware, knives, hardware, etc.), such as bright quenching and tempering of martensitic stainless steel and bright annealing of austenitic stainless steel.

[0003] The prior art includes a high-temperature vacuum brazing furnace pressure divider device with patent publication number CN219616886U. The aforementioned patent can effectively inject flux protective gas into the high-temperature vacuum brazing furnace quickly using a pressure divider method, and can also effectively control the pressure of the injected flux protective gas. However, in actual use, it still has the following shortcomings: From a practical point of view, it can only be applied to the flow of a single protective gas, and the output efficiency of the protective gas can only be controlled by a control valve, which causes trouble for later maintenance.

[0004] Therefore, there is a need for an energy-saving and efficient pressure control device for vacuum brazing furnaces to solve the problems existing in the current technology. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving and efficient pressure control device for a vacuum brazing furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving and efficient pressure control device for a vacuum brazing furnace, comprising a pressure pump, a first multi-port component, and a second multi-port component. The input end of the pressure pump is fixedly connected to the output end of a pressure tank via a front connecting pipe, and the output end of the pressure pump is fixedly connected to the input end of a first solenoid valve via another front connecting pipe. The output end of the first solenoid valve is fixedly connected to one end of the vertical pipe of the first multi-port component via another front connecting pipe and a flange assembly. Both the first and second multi-port components include a vertical pipe and a horizontal pipe. The opposite sides of the horizontal pipes of the first and second multi-port components are fixedly connected to each other via several straight pipes. The other end of the vertical pipe of the second multi-port component is fixedly connected to the input end of a second solenoid valve via a rear connecting pipe and a flange assembly. The output end of the second solenoid valve is fixedly connected to the input end of the vacuum brazing furnace via another rear connecting pipe.

[0007] It should be noted in the solution that each of the flange assemblies includes an upper flange and a lower flange, and the upper flange and the lower flange are fixedly connected by a number of fixing bolts, and rubber sealing gaskets are installed on the opposite surfaces of the upper flange and the lower flange.

[0008] It is worth noting that both the first multi-port and the second multi-port include a vertical pipe and a horizontal pipe. The vertical pipe is welded and extends through the middle of one side of the horizontal pipe. The other side of the horizontal pipe is provided with several joints, the number of which is four. The joints are all welded and extend through the middle of the other side of the horizontal pipe. The other side of the vertical pipe and the horizontal pipe are respectively provided with a lower flange or an upper flange.

[0009] It should be further noted that both the first multi-port and the second multi-port include a vertical tube and a horizontal tube, and both ends of the horizontal tube are fixedly connected to baffles.

[0010] In a preferred embodiment, the number of straight pipes is four, and each of the straight pipes is provided with a lower flange or an upper flange at both ends. The lower flange and the upper flange at both ends of the straight pipes are respectively fixedly connected to the lower flange installed at one end of the connector of the first multi-port fitting or the upper flange installed at one end of the connector by fixing bolts. A control valve is provided on one side of the straight pipe located in the first multi-port fitting, and a valve is provided at the upper end of each control valve.

[0011] In a preferred embodiment, the straight pipe is equipped with a flow meter on the side of the control valve.

[0012] In a preferred embodiment, a vacuum pressure gauge is installed on another section of the connecting pipe on one side of the second solenoid valve.

[0013] Compared with the prior art, the energy-saving and high-efficiency pressure control device for a vacuum brazing furnace provided by this invention has at least the following beneficial effects:

[0014] To ensure that the pressure inside the high-temperature vacuum brazing furnace remains at an ideal level and to prevent excessive pressure caused by excessively rapid charging of protective gas, various straight pipes are used to precisely control the charging rate and type of gas. The design and configuration of these straight pipes allow us to flexibly adjust the gas flow rate and composition according to the specific needs of the brazing process, thereby achieving precise control of the furnace environment. In this way, we can not only protect the workpiece from oxidation and contamination, but also ensure the stability of the brazing process and the reliability of the welding quality. In addition, this control mechanism also helps to extend the service life of the brazing furnace, reduce maintenance costs, and improve production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this novel invention;

[0016] Figure 2 This is a schematic diagram of the flange assembly structure of this novel invention;

[0017] Figure 3 This is a schematic diagram of the first multi-pass component of this novel invention.

[0018] In the diagram: 1. Pressure pump; 2. Front connecting pipe; 3. First solenoid valve; 4. First multi-port fitting; 401. Vertical pipe; 402. Horizontal pipe; 403. Connector; 404. Baffle; 5. Straight pipe; 6. Control valve; 601. Valve; 7. Flow meter; 8. Second multi-port fitting; 9. Rear connecting pipe; 10. Second solenoid valve; 11. Vacuum pressure gauge; 12. Flange assembly; 1201. Upper flange; 1202. Lower flange; 1203. Fixing bolt. Detailed Implementation

[0019] The present invention will be further described below with reference to embodiments.

[0020] Please see Figure 1-3 This invention provides an energy-saving and efficient pressure control device for a vacuum brazing furnace, comprising: a pressure pump 1, a first multi-port component 4, and a second multi-port component 8. The input end of the pressure pump 1 is fixedly connected to the output end of the pressure tank via a front connecting pipe 2, and the output end of the pressure pump 1 is fixedly connected to the input end of the first solenoid valve 3 via another front connecting pipe 2. The output end of the first solenoid valve 3 is fixedly connected to one end of the vertical pipe 401 of the first multi-port component 4 via another front connecting pipe 2 and a flange assembly 12. Both the first multi-port component 4 and the second multi-port component 8 include a vertical pipe 401 and a horizontal pipe 402. The horizontal pipes 402 of the first multi-port component 4 and the second multi-port component 8 are fixedly connected to each other on opposite sides via several straight pipes 5. The other end of the vertical pipe 401 of the second multi-port component 8 is fixedly connected to the input end of the second solenoid valve 10 via a rear connecting pipe 9 and a flange assembly 12, and the output end of the second solenoid valve 10 is fixedly connected to the input end of the vacuum brazing furnace via another rear connecting pipe 9.

[0021] Further as Figure 1 and Figure 2 As shown, it is worth noting that each of the flange assemblies 12 includes an upper flange 1201 and a lower flange 1202. The upper flange 1201 and the lower flange 1202 are fixedly connected by a number of fixing bolts 1203. Rubber sealing gaskets are installed on the opposite faces of the upper flange 1201 and the lower flange 1202. By installing rubber sealing gaskets on the opposite faces of the flange assemblies 12 and the corresponding upper flange 1201 and the lower flange 1202, the airtightness of the connection can be ensured.

[0022] Further as Figure 1 , Figure 2 and Figure 3As shown, it is worth noting that both the first multi-port assembly 4 and the second multi-port assembly 8 include a vertical pipe 401 and a horizontal pipe 402. The vertical pipes 401 are welded and extend through the middle of one side of the horizontal pipe 402. The other side of the horizontal pipe 402 is provided with several joints 403, with a total of four joints 403. All joints 403 are welded and extend through the middle of the other side of the horizontal pipe 402. The other side of both the vertical pipe 401 and the horizontal pipe 402 is provided with either a lower flange 1202 or an upper flange 1201. Through the position and shape of the first multi-port assembly 4 and the second multi-port assembly 8, different straight pipes 5 can be conveniently responsible for transporting gas to their respective destinations. The design of these straight pipes 5 considers the stability and efficiency of gas flow, ensuring that pressure loss during gas transmission is minimized. After passing through the straight pipes 5, the gas enters the second multi-port assembly 8, a device with a similar function to the first multi-port assembly 4, used to further distribute the gas to different downstream equipment or process stages.

[0023] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that both the first multi-port component 4 and the second multi-port component 8 include a vertical tube 401 and a horizontal tube 402. Both ends of the horizontal tube 402 are fixedly connected to baffles 404. The baffles 404 determine the airtightness of the first multi-port component 4 and the second multi-port component 8.

[0024] This solution involves the following workflow: In industrial production, different types of gases need to be transported and distributed through a specific pipeline system to meet specific process requirements. First, these gases are pressurized to the required level by pressure pump 1 to ensure smooth passage through the entire system. Subsequently, the pressurized gas enters multi-section pre-connecting pipes 2, which are designed to guide the gas flow and ensure stable pressure before entering subsequent equipment.

[0025] Next, the gas passes through the first solenoid valve 3, a remotely controllable valve used to precisely regulate the gas flow rate. The opening and closing state of the first solenoid valve 3 can be adjusted according to production needs to control the gas flow rate. After passing through the first solenoid valve 3, the gas flows into the first multi-way connector 4, a multi-way distribution device capable of distributing the gas into different straight pipes 5.

[0026] Different straight pipes 5 are responsible for delivering the gas to their respective destinations. These straight pipes 5 are designed with gas flow stability and efficiency in mind, ensuring that pressure loss is minimized during gas transmission. After passing through the straight pipes 5, the gas enters the second multi-way connector 8, a device similar in function to the first multi-way connector 4, used to further distribute the gas to different downstream equipment or process stages.

[0027] Subsequently, the gas flows through multiple connecting pipes 9, which are also responsible for delivering the gas from the second multi-way connector 8 to the second solenoid valve 10. During this stage, the gas flow may require traversing a relatively long distance, therefore the pipe design must consider the stability and safety of the gas flow.

[0028] Finally, the gas passes through the second solenoid valve 10, which functions identically to the first solenoid valve 3, for final flow control. After passing through the second solenoid valve 10, the gas ultimately enters the vacuum brazing furnace, its final destination. In the vacuum brazing furnace, the gas is used in the welding process, providing the necessary protective atmosphere or participating in chemical reactions to achieve specific welding effects. The entire system is designed and operated to ensure that the gas can efficiently and safely complete its tasks in the production process.

[0029] As can be seen from the above working process: Rubber sealing gaskets are installed on the opposing surfaces of several flange assemblies 12 and corresponding upper flanges 1201 and lower flanges 1202 to ensure the airtightness of the connections. The position and shape of the first multi-port component 4 and the second multi-port component 8 facilitate the delivery of gas to their respective destinations via different straight pipes 5. The design of these straight pipes 5 considers the stability and efficiency of gas flow, ensuring minimal pressure loss during transmission. After passing through the straight pipes 5, the gas enters the second multi-port component 8, a device with a similar function to the first multi-port component 4, used to further distribute the gas to different downstream equipment or process stages. The airtightness of the first multi-port component 4 and the second multi-port component 8 is ensured by the baffle 404.

[0030] Further as Figure 1 and Figure 2 As shown, it is worth noting that there are four straight pipes 5, and each of the two ends of the straight pipe 5 is provided with a lower flange 1202 or an upper flange 1201. The lower flange 1202 and the upper flange 1201 at both ends of the straight pipe 5 are fixedly connected to the lower flange 1202 installed at one end of the connector 403 of the first multi-port component 4 or the upper flange 1201 installed at one end of the connector 403 of the connector 403 by fixing bolts 1203. A control valve 6 is provided on one side of the straight pipe 5 in the first multi-port component 4. Each control valve 6 is provided with a valve 601 at its upper end. Through the several straight pipes 5, different straight pipes 5 are responsible for transporting gas to their respective destinations. The design of these straight pipes 5 takes into account the stability and efficiency of gas flow to ensure that the pressure loss of gas during transmission is minimized.

[0031] Further as Figure 1 and Figure 2As shown, it is worth noting that a flow meter 7 is installed on the straight pipe 5 next to the control valve 6. By installing the flow meter 7 in the pipeline system, we can accurately measure and determine the fluid velocity inside each straight pipe 5. This flow meter 7 typically utilizes various principles, such as ultrasound, electromagnetic induction, or pressure difference, to monitor the speed of fluid flowing through the pipe. In this way, we can not only understand the average flow velocity of the fluid in the pipeline, but also gain a detailed understanding of the specific velocity distribution within each straight pipe. This is crucial for ensuring the efficient operation of the pipeline system and preventing potential pipe blockages or wear. Furthermore, accurate flow velocity data can help us optimize the fluid transport process, reduce energy consumption, and ensure the stability and safety of fluid transport.

[0032] Further as Figure 1 and Figure 2 As shown, it is worth noting that a vacuum pressure gauge 11 is installed on the other end of the connecting pipe 9 on one side of the second solenoid valve 10. Through the vacuum pressure gauge 11, we can easily monitor and determine the pressure inside the vacuum brazing furnace, thereby ensuring that the vacuum environment during the welding process meets the predetermined technical requirements. As a precision measuring tool, the vacuum pressure gauge 11 can display the pressure value inside the furnace in real time, allowing operators to accurately grasp changes in the vacuum level. This is crucial for ensuring welding quality, as the quality of vacuum brazing largely depends on the precise control of the furnace pressure. By observing the reading of the vacuum pressure gauge 11, operators can adjust the working state of the vacuum pump in a timely manner to maintain a stable vacuum environment, ensuring the smooth progress of the welding process and ultimately obtaining high-quality welded products.

[0033] In summary, in industrial production processes, different types of gases need to be transported and distributed through specific pipeline systems to achieve specific process requirements. First, these gases are pressurized to the required level by pressure pump 1 to ensure smooth passage through the entire system. Then, the pressurized gas enters multi-section pre-connecting pipes 2, which are designed to guide the gas flow and ensure stable pressure before entering subsequent equipment.

[0034] Next, the gas passes through the first solenoid valve 3, a remotely controllable valve used to precisely regulate the gas flow rate. The opening and closing state of the first solenoid valve 3 can be adjusted according to production needs to control the gas flow rate. After passing through the first solenoid valve 3, the gas flows into the first multi-way connector 4, a multi-way distribution device capable of distributing the gas into different straight pipes 5.

[0035] Different straight pipes 5 are responsible for delivering the gas to their respective destinations. These straight pipes 5 are designed with gas flow stability and efficiency in mind, ensuring that pressure loss is minimized during gas transmission. After passing through the straight pipes 5, the gas enters the second multi-way connector 8, a device similar in function to the first multi-way connector 4, used to further distribute the gas to different downstream equipment or process stages.

[0036] Subsequently, the gas flows through multiple connecting pipes 9, which are also responsible for delivering the gas from the second multi-way connector 8 to the second solenoid valve 10. During this stage, the gas flow may require traversing a relatively long distance, therefore the pipe design must consider the stability and safety of the gas flow.

[0037] Finally, the gas passes through the second solenoid valve 10, which functions identically to the first solenoid valve 3, for final flow control. After passing through the second solenoid valve 10, the gas finally enters the vacuum brazing furnace, its final destination. In the vacuum brazing furnace, the gas is used in the welding process, providing the necessary protective atmosphere or participating in chemical reactions to achieve specific welding effects. The entire system is designed and operated to ensure that the gas can efficiently and safely complete its tasks in the production process. Several straight pipes 5 are used to transport the gas to their respective destinations. These straight pipes 5 are designed with gas flow stability and efficiency in mind, ensuring minimal pressure loss during transmission. Using flow meters 7 installed in the piping system, we can accurately measure and determine the fluid velocity inside each straight pipe 5. These flow meters 7 typically utilize various principles, such as ultrasound, electromagnetic induction, or pressure difference, to monitor the fluid velocity through the pipe. In this way, we can not only understand the average flow velocity of the fluid in the pipe but also gain a detailed understanding of the specific velocity distribution within each straight pipe 5. This is crucial for ensuring the efficient operation of the piping system and preventing potential pipe blockages or wear. Furthermore, accurate flow rate data helps optimize the fluid transport process, reduce energy consumption, and ensure the stability and safety of fluid transport. The vacuum pressure gauge 11 allows for convenient monitoring and determination of the pressure inside the vacuum brazing furnace, ensuring that the vacuum environment meets predetermined technical requirements during the welding process. As a precision measuring tool, the vacuum pressure gauge 11 displays the furnace pressure in real time, enabling operators to accurately monitor changes in the furnace vacuum level. This is essential for ensuring welding quality, as the quality of vacuum brazing largely depends on precise control of the furnace pressure. By observing the readings of the vacuum pressure gauge 11, operators can adjust the vacuum pump's operating status in a timely manner to maintain a stable vacuum environment, ensuring a smooth welding process and ultimately obtaining high-quality welded products.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and high-efficiency pressure control device for a vacuum brazing furnace, comprising a pressure pump (1), a first multi-port component (4), and a second multi-port component (8), characterized in that: The input end of the pressure pump (1) is fixedly connected to the output end of the pressure tank through a section of front connecting pipe (2), and the output end of the pressure pump (1) is fixedly connected to the input end of the first solenoid valve (3) through another section of front connecting pipe (2). The output end of the first solenoid valve (3) is fixedly connected to one end of the vertical pipe (401) of the first multi-way component (4) through another section of front connecting pipe (2) and flange assembly (12). The first multi-way component (4) and the second multi-way component (8) both include a vertical pipe (401) and a horizontal pipe (402). The horizontal pipes (402) of the first multi-way component (4) and the second multi-way component (8) are fixedly connected to each other on opposite sides through several straight pipes (5). The other end of the vertical pipe (401) of the second multi-way component (8) is fixedly connected to the input end of the second solenoid valve (10) through a section of rear connecting pipe (9) and flange assembly (12). The output end of the second solenoid valve (10) is fixedly connected to the input end of the vacuum brazing furnace through another section of rear connecting pipe (9).

2. The energy-saving and high-efficiency pressure control device for a vacuum brazing furnace according to claim 1, characterized in that: Each of the flange assemblies (12) includes an upper flange (1201) and a lower flange (1202). The upper flange (1201) and the lower flange (1202) are fixedly connected by a number of fixing bolts (1203), and rubber sealing gaskets are installed on the opposite surfaces of the upper flange (1201) and the lower flange (1202).

3. The energy-saving and high-efficiency pressure control device for a vacuum brazing furnace according to claim 1, characterized in that: The vertical pipes (401) are all welded and pass through the middle of one side of the horizontal pipe (402). The other side of the horizontal pipe (402) is provided with several joints (403). The number of the joints (403) is four. The joints (403) are all welded and pass through the middle of the other side of the horizontal pipe (402). The other side of the vertical pipe (401) and the horizontal pipe (402) are respectively provided with a lower flange (1202) or an upper flange (1201).

4. The energy-saving and high-efficiency pressure control device for a vacuum brazing furnace according to claim 1, characterized in that: Both ends of the horizontal tube (402) are fixedly connected to baffles (404).

5. The energy-saving and high-efficiency pressure control device for a vacuum brazing furnace according to claim 1, characterized in that: The number of straight pipes (5) is four, and each of the two ends of the straight pipes (5) is provided with a lower flange (1202) or an upper flange (1201). The lower flange (1202) and the upper flange (1201) provided at both ends of the straight pipes (5) are respectively fixedly connected to the lower flange (1202) installed at one end of the connector (403) of the first multi-port component (4) or the upper flange (1201) installed at one end of the connector (403) of the connector (403) by fixing bolts (1203). A control valve (6) is provided on one side of the straight pipe (5) located in the first multi-port component (4), and a valve (601) is provided on the upper end of each control valve (6).

6. The energy-saving and high-efficiency pressure control device for a vacuum brazing furnace according to claim 1, characterized in that: The straight pipe (5) is equipped with a flow meter (7) on one side of the control valve (6).

7. The energy-saving and high-efficiency pressure control device for a vacuum brazing furnace according to claim 1, characterized in that: A vacuum pressure gauge (11) is installed on the other end of the connecting pipe (9) on one side of the second solenoid valve (10).

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