Solar double-pipe vacuum pumping device

Abstract

The utility model discloses a solar energy double -pipe vacuumizing device, including support frame, is provided with bottom fixed storehouse on the support frame, and the inside setting center heater and fixed frame of bottom fixed storehouse, be provided with a plurality of positioning ring for vertical fixed double -pipe on the fixed frame, can work space by horizontal change for vertical, the top of bottom fixed storehouse is provided with movable storehouse, and cooperation movable storehouse is provided with lifting drive arrangement, the front side and the back of bottom fixed storehouse all are provided with negative pressure pipe, be provided with a plurality of negative pressure connector on negative pressure pipe, be provided with a hose on each negative pressure connector, double -pipe bottom is fixed in bottom fixed storehouse inside, tail pipe and hose are connected to an organic whole, realize negative pressure suction through negative pressure equipment and tail pipe connection, can be after double -pipe inside negative pressure suction, sintering removal to tail pipe, the utility model reduces workshop effective space occupancy, improved negative pressure suction efficiency, can double -pipe in air empty completely.

Description

Technical Field

[0001] This utility model belongs to the field of solar vacuum tube processing technology, and specifically relates to a solar dual-pass tube vacuum pumping device. Background Technology

[0002] In the processing of solar dual-tube, the inner tube and the outer tube are welded together by welding equipment. A vacuum zone is set between the inner tube and the outer tube. At the same time, a tail tube is welded to the outer tube and runs through the vacuum zone. After this design is completed, the tail tube is connected to an external vacuum device to complete the vacuuming operation. The above-mentioned dual-tube structure can refer to the novel through-type vacuum glass tube with patent number 201920814707.4.

[0003] In the existing dual-pipe vacuuming methods, most are placed horizontally. Since these dual-pipes are all over 1 meter in length, they occupy a lot of space when placed horizontally. Furthermore, when the dual-pipes are placed horizontally, they are subjected to greater stress, which can easily cause them to break.

[0004] The drawbacks of the existing double-tube vacuum equipment are as follows: 1. It is not easy to operate when placed horizontally, and the double tubes are prone to breakage when placed, which affects the molding efficiency; 2. The double-tube equipment occupies a large space and the number of double tubes that can be held in a unit space is small; 3. The vacuuming efficiency of the double tube is low, and it is often impossible to completely remove the internal air.

[0005] In view of the technical problems encountered in the actual products, it is very necessary for those skilled in the art to improve the structure of the existing vacuum equipment, mainly to improve the vacuuming efficiency, reduce the breakage rate of the double-tube, and improve the thoroughness of vacuuming. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, this utility model proposes a solar dual-pipe vacuum pumping device, which fixes the dual pipes vertically and then achieves a flexible connection of the tail pipe at the bottom of the device. The entire device can be sealed through a vertically moving box, thereby improving the efficiency of vacuum pumping.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A solar dual-tube vacuum pumping device includes a support frame, a bottom fixed chamber on the support frame, a central heater and a fixed frame inside the bottom fixed chamber, and a plurality of positioning rings on the fixed frame; a movable chamber is provided above the bottom fixed chamber, and a lifting drive device is provided in conjunction with the movable chamber.

[0009] Negative pressure pipes are provided on both the front and rear sides of the bottom fixed chamber. Several negative pressure connectors are provided on the negative pressure pipes, and each negative pressure connector is provided with a flexible hose. The negative pressure pipes are directly or indirectly connected to an external negative pressure device.

[0010] A sliding guide wheel is provided between the movable compartment and the support frame column. When the movable compartment moves vertically, the sliding guide wheel cooperates with the column to achieve guidance and sliding support.

[0011] The negative pressure pipe is connected to the diffusion pump as a whole, and the diffusion pump is connected to an external vacuum pump as a whole.

[0012] The support frame is equipped with guide wheels and a winch drive device. A hoisting point is provided on the top surface of the movable compartment. A hoisting rope is provided between the winch drive device, the guide wheels and the hoisting point.

[0013] The support frame is equipped with a swing rod, and the top of the swing rod is equipped with a lateral support. When the movable compartment is raised, the lateral support at the top of the swing rod is used to support and fix the entire movable compartment.

[0014] The bottom fixed compartment includes an inner side plate and an outer side plate, and a fire-resistant and heat-insulating material is provided between the inner side plate and the outer side plate; the walls of the movable compartment are also heat-insulating structures.

[0015] The bottom fixed compartment has clearance notches on both the front and rear side walls, and several lower tailpipe clearance slots are provided on the clearance notches; corresponding to the clearance notches, an upper support plate is provided on the bottom surface of the movable compartment, and several upper tailpipe clearance slots are provided on the upper support plate.

[0016] The bottom of the bottom fixing chamber is lined with high-temperature resistant material, which supports the ends of the double-pipe.

[0017] This utility model has the following beneficial effects: It includes a support frame with a bottom fixed chamber on it. Inside the bottom fixed chamber are a central heater and a fixed frame. Several positioning rings are provided on the fixed frame for vertically fixing the double-pass pipe, allowing the working space to be changed from horizontal to vertical. A movable chamber is located above the bottom fixed chamber, and a lifting drive device is provided in conjunction with the movable chamber. Negative pressure pipes are provided on both the front and rear sides of the bottom fixed chamber, with several negative pressure connectors on each pipe. Each negative pressure connector has a flexible hose. The bottom of the double-pass pipe is fixed inside the bottom fixed chamber, and the tail pipe is connected to the flexible hose. Negative pressure suction is achieved by connecting the negative pressure device to the tail pipe, allowing for the negative pressure suction inside the double-pass pipe to be drawn out and the tail pipe to be sintered and removed. This utility model reduces the effective space occupancy rate of the workshop, improves the negative pressure suction efficiency, completely empties the air inside the double-pass pipe, and reduces the damage rate of the double-pass pipe. It is an ideal vacuuming device for solar double-pass pipes. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the top three-dimensional structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the movable compartment of this utility model;

[0023] Figure 5 for Figure 1 Enlarged schematic diagram of the structure of region A in the middle;

[0024] In the diagram, 1. Support frame, 10. Support frame, 11. Lifting drive motor, 12. Guide wheel, 13. Steel cable, 2. Movable compartment, 21. Lifting point, 22. Sliding guide wheel, 23. Upper support plate, 24. Upper tailpipe clearance groove, 3. Bottom fixed compartment, 30. Side plate, 31. Fire-resistant insulation material, 32. Clearance notch, 33. Lower tailpipe clearance groove, 4. Diffusion pump, 5. T-pipe, 51. Negative pressure pipe, 52. Negative pressure connector, 53. Flexible hose, 6. Rock wool, 7. Fixed frame, 71. Crossbar, 72. Positioning ring, 73. Middle frame, 74. Heating tube fixing ring, 8. Heating tube, 9. Swing rod, 91. Lateral support, 92. Fixing sleeve, 93. Handle. Detailed Implementation

[0025] The present invention will be further described below through embodiments. The following description is merely an exemplary explanation. Those skilled in the art can make further structural improvements based on the following explanation. The scope of protection of this patent shall be determined by the scope set forth in the claims.

[0026] Example 1: A solar dual-tube vacuum pumping device, such as Figures 1-5 As shown, it includes a support frame 1, which is a gantry frame, and includes two columns and crossbeams at the top of the two columns.

[0027] A support frame 10 is provided on the support frame 1 to fix the bottom fixing chamber 3. The bottom fixing chamber 3 contains a central heater and a fixing frame 7. Furthermore, the fixing frame 7 is located in the middle of the bottom fixing chamber 3, and a central frame 73 is provided on the fixing frame 7. Several electric heating tube fixing rings 74 are fixed on the central frame 73, and electric heating tubes 8 are fixed inside the electric heating tube fixing rings 74 as the central heater. The bottom of the bottom fixing chamber 3 is lined with a high-temperature resistant material; in this embodiment, rock wool 6 is used to support the bottom of the double-tube structure.

[0028] The fixed frame 7 is also designed as a gantry structure, with a crossbar 71 at its top and several positioning rings 72 on the crossbar 71. A movable chamber 2 is located above the bottom fixed chamber 3, and a lifting drive device is installed in conjunction with the movable chamber 2. In this embodiment, a lifting drive motor 11 and guide wheels 12 are installed at the top of the support frame 1. A winch is installed on the lifting drive motor 11, and a hoisting point 21 is located below the guide wheels 12 on the top surface of the movable chamber 2. The lifting drive motor 11 serves as the winch drive device, and a steel cable 13 is installed between the lifting drive motor 11, the guide wheels 12, and the hoisting point 21 as a hoisting rope. Driven by the lifting drive motor 11, the entire movable chamber 2 can be moved vertically. When the movable chamber 2 is pressed against the bottom fixed chamber 3, a sealed heating space is formed. Furthermore, since the movable compartment 2 is a covered structure with insulation and an open bottom, there is a risk of swaying when it moves vertically. In order to ensure that it is accurately engaged with the bottom fixed compartment 3, sliding guide wheels 22 are specially installed on the side wall of the movable compartment 2 facing the support frame 1. When the movable compartment 2 moves vertically, the sliding guide wheels 22 cooperate with the column to achieve guidance and sliding support, which can ensure the accuracy of the engagement between the movable compartment 2 and the bottom fixed compartment 3.

[0029] In this embodiment, the bottom fixed compartment 3 consists of inner and outer side plates 30, namely an inner side plate and an outer side plate. A fire-resistant and heat-insulating material 31 is provided between the inner and outer side plates. When the movable compartment 2 is fastened to the bottom fixed compartment 3, the movable compartment 2 is inserted between the inner and outer side plates and pressed against the fire-resistant and heat-insulating material 31. The wall of the movable compartment 2 is also a heat-insulating structure. The upper and lower parts are combined to form a better heat-insulating compartment.

[0030] This invention features negative pressure pipes 51 on both the front and rear sides of the bottom fixed chamber 3. Each negative pressure pipe 51 has several negative pressure connectors 52, and each connector 52 has a flexible hose 53. The negative pressure pipes 51 are directly or indirectly connected to an external negative pressure device. In this embodiment, the negative pressure pipes 51 are connected to a diffusion pump 4 via a three-way pipe 5, and the diffusion pump 4 is connected to an external vacuum pump. The diffusion pump 4 is chosen as the negative pressure suction device because it contains a heating device that heats the working fluid to boiling, generating a high-speed steam flow. This steam flow carries gas molecules entering the diffusion pump 4 to its outlet, thus achieving the purpose of evacuation. During this process, the steam flow continuously blows gas molecules from the inlet to the outlet, maintaining a low pressure inside the diffusion pump 4, thereby achieving a high vacuum effect.

[0031] Furthermore, the front and rear side walls of the bottom fixed compartment 3 are provided with clearance notches 32, and the clearance notches 32 are provided with a plurality of lower tailpipe clearance grooves 33; corresponding to the clearance notches 32, an upper support plate 23 is provided on the bottom surface of the movable compartment 2, and the upper support plate 23 is provided with a plurality of upper tailpipe clearance grooves 24, the number of upper tailpipe clearance grooves 24 being equal to the number of lower tailpipe clearance grooves 33.

[0032] When using this utility model, after the movable chamber 2 is lifted, the operator vertically inserts the two-way pipes one by one into the positioning ring 72. The bottom of the two-way pipes is placed on the rock wool 6, and the tail pipe on the two-way pipe is inserted into the flexible hose 53. The circular hole formed after the upper tail pipe clearance groove 24 and the lower tail pipe clearance groove 33 are connected is the tail pipe penetration point. When the heating element 8 is energized, the temperature is controlled above 400 degrees Celsius. The temperature of the glass double-pass tube is raised to above 380 degrees Celsius through heating. At this time, the diffusion pump 4 is used for suction, which not only extracts the gas in the double-pass tube, but also causes the gas molecules in the glass material to precipitate under the strong negative pressure suction and be discharged by the diffusion pump 4. After the exhaust is completed, the movable chamber 2 is raised, and the tail tube is exposed. The operator uses a welding torch to burn the connection point between the tail tube and the double-pass tube. Because the inside of the double-pass tube is under negative pressure, when the tail tube is burned and falls off, the material at the connection point of the tail tube softens and collapses under the negative pressure suction inside the double-pass tube, forming an inner concave sealing structure.

[0033] However, during the aforementioned tailpipe scorching and removal process, the movable chamber 2 remains suspended above the operator's head after being lifted. To ensure operator safety, this invention welds a fixing sleeve 92 onto the column of the support frame 1. A swing rod 9 is fixed inside the fixing sleeve 92, and a transverse support 91 is provided at the top of the swing rod 9. When the movable chamber 2 is lifted, the handle 93 at the bottom of the swing rod 9 rotates, causing the transverse support 91 to move below the bottom surface of the movable chamber 2. The transverse support 91 at the top of the swing rod 9 then supports and fixes the entire movable chamber 2. The swing rod 9 supports and is hoisted by the lifting drive motor 11, providing double protection to effectively prevent the movable chamber 2 from falling.

[0034] In summary, this invention improves the effective utilization rate of workshop space, increases negative pressure suction efficiency, can completely evacuate the air inside the double-pass pipe, and reduces the damage rate of the double-pass pipe, making it an ideal solar double-pass pipe vacuum device.

Claims

1. A solar-powered dual-tube vacuum pumping device, characterized in that: It includes a support frame, a bottom fixed compartment on the support frame, a central heater and a fixed frame inside the bottom fixed compartment, and several positioning rings on the fixed frame; a movable compartment is provided above the bottom fixed compartment, and a lifting drive device is provided in conjunction with the movable compartment. Negative pressure pipes are provided on both the front and rear sides of the bottom fixed chamber. Several negative pressure connectors are provided on the negative pressure pipes, and each negative pressure connector is provided with a flexible hose. The negative pressure pipes are directly or indirectly connected to an external negative pressure device.

2. The solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The movable compartment is provided with sliding guide wheels between the column of the support frame and the column. The sliding guide wheels cooperate with the column to achieve guidance and sliding support.

3. The solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The negative pressure pipe is connected to the diffusion pump as a whole, and the diffusion pump is connected to an external vacuum pump as a whole.

4. The solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The support frame is equipped with guide wheels and a winch drive device. A hoisting point is provided on the top surface of the movable compartment. A hoisting rope is provided between the winch drive device, the guide wheels and the hoisting point.

5. A solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The support frame is equipped with a swing rod, and the top of the swing rod is provided with a lateral support.

6. The solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The bottom fixed compartment includes an inner side plate and an outer side plate, and a fire-resistant and heat-insulating material is provided between the inner side plate and the outer side plate; the walls of the movable compartment are also heat-insulating structures.

7. A solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The bottom fixed compartment has clearance notches on both the front and rear side walls, and several lower tailpipe clearance slots are provided on the clearance notches; corresponding to the clearance notches, an upper support plate is provided on the bottom surface of the movable compartment, and several upper tailpipe clearance slots are provided on the upper support plate.

8. A solar dual-tube vacuum pumping device as described in claim 1, characterized in that: The bottom of the bottom fixing chamber is lined with high-temperature resistant material, which supports the ends of the double-pipe.

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