Jig for high-voltage ignition detection of X-ray bulb tube

Abstract

The utility model discloses a jig for high-voltage ignition detection of an X-ray bulb tube. The jig comprises a stainless steel tank and an observation window covering the upper part of the stainless steel tank, a high-voltage wire connecting hole is formed in one end of the stainless steel groove, a high-voltage wire extending pipe extending towards the interior of the stainless steel groove is arranged in the high-voltage wire connecting hole, and the tail end of the high-voltage wire extending pipe is connected with a bulb tube quick plug connector used for being connected with an X-ray bulb tube through a high-voltage wire connector; a lamp wire connecting hole is formed in the other end of the stainless steel groove, and a lamp wire connector is arranged in the lamp wire connecting hole. According to the utility model, the creepage phenomenon and the radiation leakage phenomenon possibly occurring in the traditional measure are avoided, a guarantee can be provided for the fixation of the X-ray bulb tube, and compared with the traditional design that the bulb tube is directly suspended in oil liquid, accidental ignition caused by non-bulb tube faults is not easy to cause, and meanwhile, the fixing method is simple and the bulb tube is convenient to replace; in addition, due to the design of the oil outlet in the bottom, the problem of oil discharge can be solved under the condition of ensuring sealing and radiation protection.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray tube quality inspection technology, and in particular relates to a fixture for high-voltage arc detection of X-ray tubes. Background Technology

[0002] X-ray tubes are key components in X-ray fluorescence spectrometers, medical imaging equipment, and other devices. Inside an X-ray tube are a positive electrode (anode) and a negative electrode (cathode). The cathode has a filament that emits electrons. When a voltage is established between the anode and cathode, electrons generated at the cathode are attracted to and accelerated by the anode. These electrons are then focused into a beam by a device called a "cylinder" or "focusing cylinder." When the accelerated electrons collide with the target material on the anode, some of their energy is converted into X-ray radiation.

[0003] High-voltage arcing refers to the ionization of gas under a high-voltage electric field, forming a conductive channel, i.e., an electric arc. An electric arc inside the X-ray tube can be considered a sign of damage to the tube. Currently, arcing detection of X-ray tubes typically involves connecting the tube to a high-voltage wire and a filament wire, placing the entire tube in an oil bath, and providing simple shielding with lead sheets. However, this method suffers from several drawbacks: the tube's position is not fixed, making it prone to accidental arcing caused by non-tube malfunctions; tube replacement is inconvenient; radiation protection measures are inadequate; oil changes are difficult; and fault observation is challenging. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fixture for high-voltage arc detection of X-ray tubes.

[0005] The technical solution provided by this utility model is as follows:

[0006] A fixture for detecting high-voltage arcing in X-ray tubes includes a stainless steel tank and an observation window covering the upper part of the stainless steel tank. One end of the stainless steel tank has a high-voltage wire connection hole, and a high-voltage wire extension tube extending into the stainless steel tank is disposed in the high-voltage wire connection hole. The end of the high-voltage wire extension tube is connected to a quick-connect fitting for connecting the X-ray tube via a high-voltage wire connector. The other end of the stainless steel tank has a filament wire connection hole, and a filament wire connector is disposed in the filament wire connection hole.

[0007] Furthermore, one end of the high-voltage line connector has an inner hole for connecting the elastic copper part at the end of the high-voltage line, and the other end of the high-voltage line connector is inserted into the insertion hole of the X-ray tube quick connector.

[0008] Furthermore, the high-voltage wire connector is connected to the end of the high-voltage wire extension tube by a thread, and the inner hole on the high-voltage wire connector for connecting the elastic copper part at the end of the high-voltage wire is located inside the high-voltage wire extension tube.

[0009] Furthermore, the outer ring of the end of the high-voltage line connector that is inserted into the insertion hole is provided with several circular grooves, and the insertion hole of the X-ray tube quick connector is provided with several top ball screws that match the circular grooves.

[0010] Preferably, the high-voltage line extension pipe is threaded to the side wall of the stainless steel channel, and a sealing ring is provided at the connection.

[0011] Preferably, the filament wire connector is fixed to the side wall of the stainless steel groove by a filament fixing nut, and the filament fixing nut extends into the interior of the stainless steel groove.

[0012] Furthermore, an oil outlet is provided at the bottom of the stainless steel tank, and an oil sealing screw is installed inside the oil outlet.

[0013] Preferably, the oil outlet adopts a countersunk screw hole design, and the sealing ring of the oil sealing screw deforms to fill the countersunk screw hole to form a seal.

[0014] Preferably, the high-voltage line extension tube is fitted with a lead pipe.

[0015] Preferably, the observation window is made of transparent lead glass.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. The X-ray tube is easy to replace, physically secure, and electrically reliable, fully ensuring high-voltage insulation and creepage distance.

[0018] 2. Main body radiation protection design:

[0019] a. The main body of the oil tank is made of 10mm thick stainless steel, which effectively prevents radiation leakage;

[0020] b. Using 15mm transparent lead glass as the observation window, this design can effectively observe the internal situation while fully preventing radiation leakage;

[0021] c. All electrical access points and oil drains are shielded with lead pipes or high-density materials to prevent radiation leakage.

[0022] 3. An oil outlet is provided on the side. The sealing screw is directly tightened onto the housing. The sealing ring of the sealing screw deforms and fills the groove to form a seal, which has good sealing performance and strong radiation protection performance. Attached Figure Description

[0023] 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.

[0024] Figure 1This is a cross-sectional view of a fixture provided in an embodiment of this utility model;

[0025] Figure 2 This is a top view of a fixture provided in an embodiment of this utility model.

[0026] The reference numerals in the attached figures are as follows:

[0027] 1-Stainless steel tank, 2-Observation window, 3-X-ray tube, 4-High voltage line fixing seat, 5-Sealing ring, 6-Lead pipe, 7-High voltage line extension tube, 8-X-ray tube quick connector, 9-High voltage line connector, 10-Top ball screw, 11-Filament wire connector, 12-Filament fixing nut, 13-Oil sealing screw. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] This embodiment provides a fixture for detecting high-voltage arcing in X-ray tubes, such as... Figure 1 and Figure 2 As shown, the fixture structure mainly consists of a stainless steel tank 1, an observation window 2, a high-voltage line extension tube 7, a lead pipe 6, a high-voltage line connector 9, a quick-connect fitting for the X-ray tube 8, an X-ray tube 3, an oil sealing screw 13, and a filament connector 11, etc. Figure 1 After assembling all the components as shown, inject sufficient oil into the stainless steel tank 1, cover the observation window 2, and the arcing situation inside the tube can be observed directly and effectively during the testing phase.

[0030] Electrical connection structure design: The high-voltage line must pass through the high-voltage line extension tube 7. The elastic copper part at the end of the high-voltage line is clamped by the inner hole on the high-voltage line connector 9 and connected to the subsequent circuit. One end of the X-ray tube quick connector 8 is connected to the high-voltage terminal of the X-ray tube, and the other end is mated with the high-voltage line connector 9 to achieve the connection between the high-voltage line and the X-ray tube. The high-voltage line extension tube 7 effectively avoids creepage. In addition, a lead tube 6 is sleeved on the outside of the high-voltage line extension tube 7, which can effectively block radiation and prevent radiation leakage. The filament wire connector 11 has a sealing ring. The filament wire connector 11 is fixed to the side wall of the stainless steel tank 1 by the filament fixing nut 12 to form a seal. The filament wire passes through the filament wire connector 11 and is connected to the filament terminal inside the X-ray tube 3 to achieve the connection between the filament wire and the X-ray tube. The copper filament fixing nut 12 and its length exceeding the inner side of the tank wall can effectively block radiation leakage.

[0031] X-ray tube fixing structure design: One end of the high-voltage line extension tube 7 is designed with a sealing ring 5 and threads, which can be fixed to the side of the stainless steel groove to form a seal to prevent oil leakage. The other end is designed with internal threads to fix the high-voltage line connector 9, providing a guarantee for the fixation of the X-ray tube. The tube quick-connect fitting 8 is designed with two top ball screws 10, and the high-voltage line connector 9 is designed with a circular groove. After the two are connected, the top ball is embedded in the groove, which plays a certain role in fixing. The hole and shaft of the connector and the fitting itself are also tightly fitted. In this way, the X-ray tube can be fixed in the groove. Whether it is assembly or disassembly, it is very simple and effective.

[0032] Radiation leakage prevention and observation method design: The 10mm thick stainless steel channel of the main body is sufficient to prevent radiation from passing through the shell. The 15mm thick lead glass that serves as the observation window also has strong radiation protection capabilities and good observation capabilities. The design of lead pipes and filament fixing nuts at the connection ports ensures that radiation cannot leak out from the interface.

[0033] Oil drain design: An oil outlet is designed near the bottom of the stainless steel tank 1. When changing the oil, the oil sealing screw 13 can be removed to complete the oil draining operation. The countersunk screw hole on the tank body can effectively form a seal and prevent radiation leakage after it is matched with the oil sealing screw 13 (the sealing ring of the sealing screw will form a seal after it is deformed and fills the countersunk screw hole).

[0034] The electrical connection method in this embodiment not only avoids the creepage and radiation leakage phenomena that may occur in traditional methods, but also provides a guarantee for the fixation of the X-ray tube. The entire design is in a straight line, which is both aesthetically pleasing and easy to operate. The wiring is not directly exposed in the oil, and the interfaces are all designed with sealing measures to effectively prevent the oil from contaminating the outside environment. The X-ray tube is fixed to the side of the stainless steel tank through high-voltage extension tubes and connectors. Compared with the traditional design where the tube is directly suspended in the oil, it is less likely to cause accidental arcing due to non-tube malfunctions. At the same time, the fixation method is simple and easy to operate, making the tube replacement process efficient and quick, greatly saving detection time. The oil outlet designed at the bottom can solve the oil drainage problem while ensuring good sealing and radiation protection. Traditional oil drainage will cause deteriorated and contaminated oil to stick to the inner wall of the side. In this design, after the oil is drained, impurities can only adhere to the bottom, which has virtually no impact on the testing environment. The oil drainage process is also more convenient and effective.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A fixture for detecting high-voltage arcing in X-ray tubes, characterized in that, It includes a stainless steel tank and an observation window covering the upper part of the stainless steel tank; one end of the stainless steel tank is provided with a high-voltage wire connection hole, and a high-voltage wire extension tube extending into the stainless steel tank is provided in the high-voltage wire connection hole. The end of the high-voltage wire extension tube is connected to the X-ray tube quick-connect fitting for connecting the X-ray tube through a high-voltage wire connector; the other end of the stainless steel tank is provided with a filament wire connection hole, and a filament wire connector is provided in the filament wire connection hole.

2. The fixture as described in claim 1, characterized in that, One end of the high-voltage line connector has an inner hole for connecting the elastic copper part at the end of the high-voltage line, and the other end of the high-voltage line connector is inserted into the insertion hole of the X-ray tube quick connector.

3. The fixture as described in claim 2, characterized in that, The high-voltage line connector is connected to the end of the high-voltage line extension tube by a thread, and the inner hole on the high-voltage line connector for connecting the elastic copper part at the end of the high-voltage line is located inside the high-voltage line extension tube.

4. The fixture as described in claim 2, characterized in that, The outer ring of the end of the high-voltage line connector that is inserted into the insertion hole is provided with several circular grooves, and the insertion hole of the X-ray tube quick connector is provided with several top ball screws that match the circular grooves.

5. The fixture as described in claim 1, characterized in that, The high-voltage line extension pipe is threaded to the side wall of the stainless steel tank, and a sealing ring is provided at the connection.

6. The fixture as described in claim 1, characterized in that, The filament wire connector is fixed to the side wall of the stainless steel trough by a filament fixing nut, which extends into the interior of the stainless steel trough.

7. The fixture as described in claim 1, characterized in that, The bottom of the stainless steel tank is provided with an oil outlet, and an oil sealing screw is installed in the oil outlet.

8. The fixture as described in claim 7, characterized in that, The oil outlet adopts a countersunk screw hole design, and the sealing ring of the oil sealing screw deforms to fill the countersunk screw hole to form a seal.

9. The fixture as described in claim 1, characterized in that, The high-voltage line extension tube is fitted with a lead pipe.

10. The fixture as claimed in claim 1, characterized in that, The observation window is made of transparent lead glass.

Images