High-purity germanium gamma spectrometer electric refrigeration maintenance device

Abstract

The utility model relates to electric refrigeration equipment maintenance technical field, concretely is a kind of high-purity germanium gamma spectrometer electric refrigeration maintenance device, including ground, the ground top is equipped with support plate, the support plate top is fixed with suction pump by connecting block, the suction pump top is fixed with air pressure detector, the air pressure detector right end is fixed with suction pipe, the ground top is also equipped with cold exchange suction valve, the cold exchange suction valve left end is fixed with suction valve by valve pipe, the suction valve door is slidably connected with two sealing rings outside, every the sealing ring both ends are fixed with connecting plate, the top sealing ring is equipped with suction needle on the through, the suction needle top is equipped with valve door;The utility model can drive outer screw rod rotation by sealing nut rotation, to make that inner nut bends to inboard, to make that close ring closely adhere valve pipe, to guarantee the sealing property of sealing ring and valve pipe, to guarantee maintenance accuracy, to guarantee maintenance effect.

Description

Technical Field

[0001] This utility model belongs to the field of electrical refrigeration equipment maintenance technology, specifically a high-purity germanium gamma spectrometer electrical refrigeration maintenance device. Background Technology

[0002] Strictly speaking, the electric cooling equipment of a high-purity germanium gamma spectrometer needs to be evacuated periodically. This is because it transfers heat to the crystal through a cold exchange head, and to prevent heat loss due to poor vacuum, it needs to be evacuated periodically.

[0003] However, most existing maintenance methods involve manually installing the sealing ring on the outside of the extraction valve. This method has low installation accuracy and efficiency. In addition, existing maintenance methods directly maintain the electric refrigeration equipment during use, which cannot ensure the equipment's sealing performance, resulting in poor maintenance effectiveness. To address these issues, this invention designs a high-purity germanium gamma spectrometer electric refrigeration maintenance device. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an electric cooling maintenance device for a high-purity germanium gamma spectrometer, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric cooling maintenance device for a high-purity germanium gamma spectrometer, comprising a ground, a support plate on the top of the ground, multiple support rods rotatably connected to the support plate via a rotating shaft, multiple universal wheels at the bottom of each support rod, a left reversing gear at the rear end of the support plate, the left reversing gear being fixedly connected to the left end of the support rod via a rotating shaft, a right reversing gear at the right end of the left reversing gear, the right reversing gear being fixedly connected to the right end of the support rod via a rotating shaft, and a vacuum pump fixed to the top of the support plate via a connecting block. A pressure detector is provided, with a display at its front end. A power cord is fixed to the front end of the air pump. An air extraction pipe is fixed to the right end of the pressure detector. A cold exchange air extraction valve is also provided at the top of the ground. An air extraction valve is fixed to the left end of the cold exchange air extraction valve through a valve pipe. An air extraction port is provided on the air extraction valve. Two sealing rings are slidably connected to the outside of the air extraction valve. A connecting plate is fixed to both ends of each sealing ring. An external screw is fixed to the outside of each connecting plate. A sealing nut is provided on the outside of each external screw. An air extraction needle is passed through the top sealing ring. A valve is provided at the top of the air extraction needle.

[0006] Preferably, each of the support rods is slidably connected to a universal wheel positioning plate at its bottom, and each universal wheel positioning plate is rotatably connected to the universal wheel inside it via a rotating shaft. The left reversing gear is meshed with a reversing front gear, and a reversing bearing is fixed to the front end of the reversing front gear. The outer ring of the reversing bearing is fixedly connected to the support plate, and a reversing rear gear is fixed to the rear end of the reversing front gear.

[0007] Preferably, a handle is slidably connected to the forward gear and the reverse gear, a spring is fixed to the rear end of the handle, the other end of the spring is fixedly connected to the reverse gear, the reverse gear is connected by meshing with the right reverse gear, and a chain is also provided at the rear end of the support plate.

[0008] Preferably, the top of the air pump is also fixed with a movable handle, the right end of the air suction pipe is fixed with an air suction nut, the bottom of the valve is fixed with an air suction block, the bottom of the air suction block is fixedly connected to the air suction needle, the air suction needle is slidably connected to the air suction port, the left end of the air suction block is fixed with an air suction screw tube, and the air suction screw tube is engaged with the air suction nut.

[0009] Preferably, the two sealing rings are fixedly connected by connecting bolts. Each set of connecting rings has a fitting ring inside, and each fitting ring is tightly fitted to the valve tube inside it. An inner nut is engaged with the outer side of the outer screw at each end, and each inner nut is fixedly connected to the sealing nut outside it.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) The present invention can ensure that the two sealing rings are tightly attached by connecting bolts. At the same time, the device can drive the outer screw to rotate by rotating the sealing nut, thereby causing the inner nut to bend inward, so that the sealing ring is tightly attached to the valve tube, thereby ensuring the sealing performance of the sealing ring and the valve tube, thereby ensuring the accuracy of maintenance, and thus ensuring the maintenance effect.

[0011] (2) This utility model can prevent the sealing ring from rotating by inserting the suction needle into the suction port, thereby ensuring the accuracy of maintenance. At the same time, the device can make the sealing ring detachable by cooperating with the display and the suction solenoid, thereby adapting to different sizes of cold exchange suction valves, thus ensuring the maintenance effect and improving the scope of use of the device. In addition, the device can perform a self-inspection of the suction pipe before maintenance by means of the valve, thereby further ensuring the accuracy of maintenance and improving the maintenance efficiency.

[0012] (3) The present invention can drive the air pump to move through the universal wheels, thereby reducing transportation costs. At the same time, the device can drive the rear gear and the front gear to rotate by turning the handle, thereby driving the left gear and the right gear to rotate, so that the support plate is close to the ground during maintenance, thus ensuring the stability of the device and saving labor. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a rear view schematic diagram of the present invention; Figure 3 This is a schematic diagram of the top of the support plate of this utility model; Figure 4 This is a schematic diagram of the rear end of the support plate of this utility model; Figure 5 This is a schematic diagram of the outer end of the cold exchange extraction valve of this utility model; Figure 6 This is a schematic diagram of the inside of the sealing ring of this utility model; Figure 7 This is a cross-sectional view of the sealing nut of this utility model; Figure 8 This is a schematic diagram of the air extraction valve of this utility model.

[0015] In the diagram: 1-Ground; 2-Support plate; 3-Cooler exchange exhaust valve; 4-Sealing ring; 5-Sealing nut; 6-Valve; 7-Exhaust pump; 8-Support rod; 301-Valve pipe; 302-Exhaust valve; 303-Exhaust port; 401-Connecting plate; 402-Connecting bolt; 403-Connecting ring; 501-Fit ring; 502-Outer threaded rod; 503-Inner nut; 601-Exhaust block; 602-Exhaust helical tube; 603-Exhaust needle; 701 -Moving handle; 702-Air pressure detector; 703-Ejection pipe; 704-Display; 705-Power cord; 706-Connecting block; 707-Ejection nut; 801-Wheel positioning plate; 802-Wheel; 803-Left reversing gear; 804-Right reversing gear; 805-Reversing gear after reversing; 806-Reversing gear before reversing; 807-Handle; 808-Spring; 809-Reversing bearing; 810-Positioning hole; 811-Chain. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example 1, by Figures 1-3 , Figure 5 , Figures 7-8The present invention includes a ground surface 1 for supporting the entire device. A support plate 2, made of alloy material, is located on top of the ground surface 1 and supports the air pump 7. Multiple support rods 8, also made of alloy material, are rotatably connected to the support plate 2 via a rotating shaft. Each support rod 8 has multiple casters 802 at its bottom for easy movement of the support plate 2. A left reversing gear 803 is located at the rear end of the support plate 2, which drives the left-end support rod 8 to rotate. The left reversing gear 803 is fixedly connected to the left-end support rod 8 via a rotating shaft. The left reversing gear 803 has a right reversing gear 804 at its right end. The right reversing gear 804 can drive the right support rod 8 to rotate. The right reversing gear 804 and the right support rod 8 are fixedly connected by a rotating shaft. A vacuum pump 7 is fixed to the top of the support plate 2 by a connecting block 706. The vacuum pump 7 is used for vacuuming. A pressure detector 702 is fixed to the top of the vacuum pump 7. The pressure detector 702 is used to display the pressure. A display 704 is provided at the front end of the pressure detector 702. The display 704 is used to control the entire device. A power cord 705 is fixed to the front end of the vacuum pump 7. The power cord 705 provides the necessary energy to the device by connecting to an external power source. A suction pipe 703 is fixed to the right end of 702. The suction pipe 703 is made of flexible material to facilitate the movement of the cold exchange suction valve 3. A cold exchange suction valve 3 is also provided on the top of the ground 1. A suction valve 302 is fixed to the left end of the cold exchange suction valve 3 through a valve pipe 301. The suction valve 302 is provided with a suction port 303, which facilitates the insertion of the suction needle 603 for easy maintenance. Two sealing rings 4 are slidably connected to the outside of the suction valve 302. The sealing rings 4 are made of alloy material and are used to seal the suction valve 302. Each sealing ring 4 is fixed to both ends with a connecting plate 401, which is also made of alloy material. The connecting bolt 402 is used to connect the external threaded rod 502. An external threaded rod 502 is fixed on the outside of each connecting plate 401. The external threaded rod 502 adopts a wedge-shaped structure and is made of alloy material. The external threaded rod 502 can deform. A sealing nut 5 is provided on the outside of each end of the external threaded rod 502. The sealing nut 5 is made of alloy material. The sealing nut 5 facilitates the rotation of the inner nut 503. A suction needle 603 is provided through the top sealing ring 4. The suction needle 603 can be inserted into the suction port 303 to facilitate the suction of air from the cold exchange suction valve 3. A valve 6 is provided on the top of the suction needle 603. The valve 6 is used to control the sealing performance of the suction needle 603.

[0018] Example 2, based on Example 1, combined with... Figure 4 、 Figure 6Each support rod 8 is slidably connected to a universal wheel positioning plate 801 at its bottom. The universal wheel positioning plate 801 is made of alloy material and is used to position the universal wheel 802. Each universal wheel positioning plate 801 and the universal wheel 802 inside it are rotatably connected via a rotating shaft. The left reversing gear 803 is meshed with a reversing front gear 806. The reversing front gear 806 can drive the left reversing gear 803 to rotate. A reversing bearing 809 is fixed to the front end of the reversing front gear 806. The reversing bearing 809 is used to position the reversing front gear 806. The outer ring of the reversing bearing 809 is fixedly connected to the support plate 2. A reversing rear bearing is fixed to the rear end of the reversing front gear 806. Gear 805, the reversing gear 805 can drive the right reversing gear 804 to rotate. A handle 807 is slidably connected to the reversing gear 806 and the reversing gear 805. The handle 807 facilitates the rotation of the reversing gear 805 and the reversing gear 806. A spring 808 is fixed to the rear end of the handle 807, and the other end of the spring 808 is fixedly connected to the reversing gear 805. The spring 808 is elastic, allowing the handle 807 to approach the support plate 2 when not under force. The reversing gear 805 is meshed with the right reversing gear 804 via 811. A chain 810 is also provided at the rear end of the support plate 2, which is used to position the handle 807. The top of the air pump 7 is also fixed with a movable handle 701, which facilitates the movement of the support plate 2 by the operator. A suction nut 707 is fixed to the right end of the suction pipe 703, ensuring the seal between the suction screw 602 and the suction pipe 703. A suction block 601 is fixed to the bottom of the valve 6, providing a channel for the suction needle 603 to draw air. The bottom of the suction block 601 is fixedly connected to the suction needle 603, and the suction needle 603 is slidably connected to the suction port 303. A suction screw 602, made of alloy material, is fixed to the left end of the suction block 601. The suction screw 602 is connected to the suction nut 707. 7. Engaging connection: The two sealing rings 4 are fixedly connected by connecting bolts 402. Each set of connecting rings 403 has a retaining ring 501 inside. The retaining ring 501 is made of rubber material to ensure the sealing performance between the sealing ring 4 and the valve tube 301, thereby ensuring the maintenance effect. Each retaining ring 501 is tightly fitted to the valve tube 301 inside it. An inner nut 503 is engaged with the outer side of the outer screw 502 at each end. The inner nut 503 adopts a wedge-shaped ring structure. The inner nut 503 and the outer screw 502 cooperate to make the retaining ring 501 tightly fit the valve tube 301, thereby ensuring the sealing performance of the equipment. Each inner nut 503 is fixedly connected to the sealing nut 5 outside it. When using this equipment, the operator can move the support plate 2 by pushing the movable handle 701. After the entire equipment is moved to the desired position, the operator rotates the handle 807, which drives the reversing gear 805 and the reversing gear 806 to rotate, thereby driving the left reversing gear 803 and the right reversing gear 804 to rotate, thus causing the two sets of support rods 8 to rotate, making the support plate 2 close to the ground. The operator then releases the handle 807, at which point the handle 807 is inserted into the chain 810, thus preventing the support rods 8 from shaking and ensuring the stability of the equipment. The operator then connects the equipment to an external power source through the reversing gear 805. The operator then selects a sealing ring 4 of the appropriate size according to the outer diameter of the valve pipe 301 and fits the sealing ring 501 onto the outside of the suction valve 302. Finally, the operator places the sealing ring 4 on the suction valve. Externally, the two sealing rings 4 are fixed by the connecting bolts 402. At this time, the connecting plate 401 is in close contact with the sealing ring 501. The operator then rotates the sealing nut 5, thereby driving the inner nut 503 to rotate, which in turn drives the outer screw 502 to bend, thus making the sealing ring 501 in close contact with the valve pipe 301, thereby ensuring the sealing of the equipment. At this time, the operator can fix the suction pipe 703 to the suction block 601 by engaging the suction nut 707 with the suction screw 602, thereby facilitating maintenance. The operator then closes the valve 6 to prevent the gas inside the cold exchange suction valve 3 from entering the suction pipe 703. The operator then activates the suction pump 7 through the display 704 to start the suction operation. At this time, the air pressure detector 702 transmits data to the display 704. If the value of the air pressure detector 702 reaches 25mT at this time... The following indicates that there are no leaks in the pipe connections, ensuring the accuracy of subsequent maintenance. Maintenance work then begins. The operator opens valve 6 and controls the vacuum pump 7 again via the display 704. This allows the gas inside the cold exchange vacuum valve 3 to enter valve 6 through the vacuum needle 603 and then be extracted through the vacuum pipe 703. After the pressure detector 702 displays a value below 25mT and stabilizes for half an hour, the operator closes valve 6 and removes the sealing ring 4 to prevent gas backflow, thus completing the routine maintenance of the electric refrigeration system.

[0019] The working process of this utility model is as follows: When using this device, the operator pushes the moving handle 701 to move the support plate 2. After the entire device moves to the desired position, the operator rotates the handle 807, thereby driving the reversing gear 805 and the reversing gear 806 to rotate, which in turn drives the left reversing gear 803 and the right reversing gear 804 to rotate, thereby causing the two sets of support rods 8 to rotate, thus bringing the support plate 2 close to the ground. The operator then releases the handle 807, at which point the handle 807 is inserted into the chain 810, thereby preventing the support rods 8 from shaking and ensuring the stability of the device. The operator then connects the device to an external power source through the reversing gear 805. The operator then selects a sealing ring 4 of the appropriate size according to the outer diameter of the valve pipe 301 and places the sealing ring 501 on the outside of the suction valve 302. The operator then places the sealing ring 4 on... The external part of the exhaust valve 302 is fixed by the connecting bolts 402, and the two sealing rings 4 are fixed together. At this time, the connecting plate 401 is in close contact with the sealing ring 501. The operator then rotates the sealing nut 5, which drives the inner nut 503 to rotate, thereby causing the outer screw 502 to bend, so that the sealing ring 501 is in close contact with the valve tube 301, thus ensuring the sealing of the equipment. The operator then engages the exhaust nut 707 with the exhaust screw tube 602 to fix the exhaust tube 703 with the exhaust block 601, thus facilitating maintenance. The operator then closes the valve 6 to prevent the gas inside the cold exchange exhaust valve 3 from entering the exhaust tube 703. The operator then activates the exhaust pump 7 through the display 704 to start the exhaust operation. At this time, the air pressure detector 702 transmits data to the display 704. If the reading of the air pressure detector 702 reaches 25mT, the operator can proceed. The following indicates that there are no leaks in the pipe connections, ensuring the accuracy of subsequent maintenance. Maintenance work then begins. The operator opens valve 6 and controls the vacuum pump 7 again via the display 704. This allows the gas inside the cold exchange vacuum valve 3 to enter valve 6 through the vacuum needle 603 and then be extracted through the vacuum pipe 703. After the pressure detector 702 displays a value below 25mT and stabilizes for half an hour, the operator closes valve 6 and removes the sealing ring 4 to prevent gas backflow, thus completing the routine maintenance of the electric refrigeration system.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-purity germanium gamma spectrometer electrical cooling maintenance device, characterized in that: The system includes a ground (1), a support plate (2) on top of the ground (1), a plurality of support rods (8) rotatably connected to the support plate (2) via a pivot, a plurality of casters (802) at the bottom of each support rod (8), a left reversing gear (803) at the rear end of the support plate (2), the left reversing gear (803) being fixedly connected to the left end of the support rod (8) via a pivot, a right reversing gear (804) at the right end of the left reversing gear (803), the right reversing gear (804) being fixedly connected to the right end of the support rod (8) via a pivot, a vacuum pump (7) fixed to the top of the support plate (2) via a connecting block (706), a pressure detector (702) fixed to the top of the vacuum pump (7), and a display (704) at the front end of the pressure detector (702). A power cord (705) is fixed at the front end of the air pump (7), an air extraction pipe (703) is fixed at the right end of the air pressure detector (702), a cold exchange air extraction valve (3) is also provided at the top of the ground (1), an air extraction valve (302) is fixed at the left end of the cold exchange air extraction valve (3) through a valve pipe (301), an air extraction port (303) is provided on the air extraction valve (302), two sealing rings (4) are slidably connected to the outside of the air extraction valve (302), a connecting plate (401) is fixed at both ends of each sealing ring (4), an external screw (502) is fixed on the outside of each connecting plate (401), a sealing nut (5) is provided on the outside of the external screw (502) at each end, an air extraction needle (603) is provided through the top sealing ring (4), and a valve (6) is provided at the top of the air extraction needle (603).

2. The high-purity germanium gamma spectrometer electric cooling maintenance device according to claim 1, characterized in that: Each of the support rods (8) has a universal wheel positioning plate (801) slidably connected to its bottom. Each of the universal wheel positioning plates (801) is rotatably connected to the universal wheel (802) inside it via a rotating shaft. The left reversing gear (803) is meshed with the reversing front gear (806). The front end of the reversing front gear (806) is fixed with a reversing bearing (809). The outer ring of the reversing bearing (809) is fixedly connected to the support plate (2). The rear end of the reversing front gear (806) is fixed with a reversing rear gear (805).

3. The high-purity germanium gamma spectrometer electric cooling maintenance device according to claim 2, characterized in that: A handle (807) is slidably connected to the forward gear (806) and the reverse gear (805). A spring (808) is fixed to the rear end of the handle (807). The other end of the spring (808) is fixedly connected to the reverse gear (805). The reverse gear (805) is meshed with the right reverse gear (804) through (811). A chain (810) is also provided at the rear end of the support plate (2).

4. The high-purity germanium gamma spectrometer electric cooling maintenance device according to claim 1, characterized in that: The top of the air pump (7) is also fixed with a movable handle (701), the right end of the air suction pipe (703) is fixed with an air suction nut (707), the bottom of the valve (6) is fixed with an air suction block (601), the bottom of the air suction block (601) is fixedly connected to the air suction needle (603), the air suction needle (603) is slidably connected to the air suction port (303), the left end of the air suction block (601) is fixed with an air suction screw tube (602), and the air suction screw tube (602) is engaged with the air suction nut (707).

5. The high-purity germanium gamma spectrometer electric cooling maintenance device according to claim 4, characterized in that: The two sealing rings (4) are fixedly connected by connecting bolts (402). Each set of connecting rings (403) is provided with a clamping ring (501) inside. Each clamping ring (501) is tightly fitted with the valve tube (301) on its inner side. The outer screw (502) at each end is engaged with an inner nut (503). Each inner nut (503) is fixedly connected with the sealing nut (5) on its outer side.

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