CN2298601Y - Industrial X ray pipe with external target type anode substance - Google Patents

Abstract

The utility model discloses an industrial X-ray pipe with an anode body in an external target type, which is used for the testing apparatus of nondestructive flaw detection. The utility model is mainly composed of a casing, an anode body, a cathode body, and a heat radiating body. The utility model uses the casing of an X-ray tube in an ordinary glass tube type and the inner structure of an X-ray tube in a corrugated ceramic tube type, and the position which generates X-ray is caused to be arranged outside the casing. The utility model which enlarges the heat radiating body and enhances the performance of the X-ray tube of the same class has the advances of good resistance of pressure, good heat radiation, long service life, good integral protection, easy fabrication, and low cost. The utility model can be widely used for nondestructive inspection and examination of industrial material, equipment, and apparatus; the technology of the utility model can be expanded and used in medical treatment; the utility model can be used for X-ray perspective and photography, CT, B ultrasonic and color ultrasonic test, and diagnosis, examination, and treatment in medicine.

Description

Industrial x ray tube with external target type anode bodies

The utility model is the design and the manufacturing technology field of the x ray tube of nondestructive inspection detecting instrument use.

The x ray tube is the critical piece of the nondestructive inspection detecting instrument of industrial use, it is the main devices that produces and export the x ray, mainly contain two kinds with this type of x ray tube that often uses at present in the past, a kind of is the glass tubular type, and a kind of is the x ray tube of ripple ceramic tubular type; The x ray tube applications history of glass tubular type is longer, and the manufacturing process maturation is easy to manufacture, cost is low, but intensity is low, and is frangible, internal structure is unreasonable, and anode bodies is little, and radiator is little, the heat radiation of anode is bad, influences useful life, and the focus point that the x ray takes place is in the glass housing, the interior pressure greatly, the integral protection difficulty, focus point is higher, makes corner and edge that the crack detector complete machine can't some test specimen of transillumination; The x ray tube intensity height of ripple ceramic magnetic tube formula is withstand voltage good, non-friable, reasonable in internal structure, the focus point that the x ray takes place is outside housing, and integral protection is good, good heat dissipation, the performance index height, the life-span is long, but manufacturing process is very complicated, manufacture difficulty is very big, product qualified rate is very low, costs an arm and a leg, and can't produce in batches and apply on a large scale.

Goal of the invention of the present utility model is exactly at the deficiencies in the prior art, characteristics according to glass tubular type and ripple ceramic tubular type x ray tube, utilize their advantage, the two is combined, produce a kind of new version, promptly adopt the internal structure of the glass housing and the ripple ceramic tubular type x ray tube of glass tubular type x ray tube, make the anode bodies that produces the x ray place outside, and increasing radiator, make the x ray tube of this kind new structure form have easy to manufacture, cost is low, the performance index height, good heat dissipation, integral protection is good, life-span is long, promptly makes the x ray tube of the performance with ripple ceramic tubular type with the price of glass tubular type.

The utility model primary structure comprises: housing, anode bodies, cathode, radiator, cathode cap, lead; The left end that it is characterized in that described housing 1 is equipped with anode bodies 2, radiator 5 is equipped with in the outside of anode bodies 2, anode bodies 2 right-hand members stretch in the housing 1, the left end of anode bodies 2 places housing 1, radiator 5 outsides, cathode 3 is equipped with in the right-hand member inside of housing 1, cathode cap 4 is equipped with in the right-hand member outside of housing 1, and cathode cap 4 outsides connect lead 6;

Described anode bodies 2 structures are: there is electron beam receive path 16 right-hand member inside, and the target chamber 14 of UNICOM's left end, target body 13 is housed in the target chamber 14, anode tungsten target 11 is housed on the inclined-plane of target body 13, the left end of target body 13 has fixing threaded hole 17, the below UNICOM ray window 15 in target chamber 14 is equipped with beryllium dividing plate 12 in the ray window 15;

Described cathode 3 structures are: there is the poly-cover 20 of penetrating the bosom position, poly-penetrating in the cover 20 has two place's through wires holes 22, the poly-cover 20 left end UNICOM filament chambeies 23 of penetrating, the poly-passage 24 of penetrating of filament chamber 23 UNICOM's electron beams, filament chamber 23, electron beam be poly-to be penetrated passage 24 and all places cathode 3 left end inside, filament 19 wire connection cavity 21 in and an end of lead 6 link, enter filament chamber 23 by through wires hole 22, after the dish spirality, another hole of process through wires hole 22 enters in the wire connection cavity 21 and connects with lead 6.

Described radiator 5 is a disc, and structure is: inside cooperates connection for circular hole and with the cylindrical portion of anode bodies 2, uniform 6 fixing threaded holes 26 in left side, and there is annular seal groove 18 left side;

Described housing 1 is the Vitrea circle shape that encrusts, and structure is: innerly be vacuum chamber 8, left end is that anode connects dish 7, and right-hand member is for bleeding mouth 9 and coupling 10;

This practical operation principle is: after adding 200 kilovolts acceleration high pressure and lead 6 energized between anode bodies 2 and the cathode 3, UNICOM's filament 19, make electric energy enter cathode cap 4 and filament chamber 23, filament 19 promptly produces electron beam 25, electron beam 25 gathers by electron beam penetrates the vacuum chamber 8 that passage 24 enters housing 1, aim at the electron beam receive path 16 of anode bodies 2, enter target chamber 14 then thus, electron beam 25 impinge anode tungsten targets 11, and generation x ray, the center line of anode tungsten target 11 is aimed at ray window 15, the center line of beryllium dividing plate 12, the x ray is transferred to detector device through this and uses, a large amount of heat energy of filament 19 dispensing are discharged housings 1 through radiator 5, have guaranteed that the temperature in the true chamber 8 of housing 1 is normal, thereby have finished the production process of x ray.

The utility model compared with prior art has tangible advance, owing to adopted the anode bodies of the x ray tube of the housing of x ray tube of glass tubular type and ripple ceramic tubular type, radiator structure, make the anode bodies that produces the x ray place housing 1 outside, and strengthen radiator 5, thereby remedied the deficiency of original technology separately, make the x ray tube of this kind new structure form have easy to manufacture, cost is low, performance is good, good heat dissipation, integral protection is good, long service life, can be widely used in the nondestructive inspection detecting instrument, also can in medicine equipment, use, as the x actinoscopy X, take a picture, CT, B ultrasonic, color ultrasound, and the diagnosis in the medical science, detect, treatment.

Description of drawings:

Fig. 1 is the front view with industrial x ray tube of external target type anode bodies.

Fig. 2 is the A-A section overall structure figure of Fig. 1.

Fig. 3 is the B-B section cathode end view drawing of Fig. 1.

Below in conjunction with accompanying drawing the utility model is described further:

Shown in Fig. 1,2, the shell of housing 1 with industrial x ray tube of external target type anode bodies is made of the good water white glass of intensity, left end has anode to connect dish 7, but anode connects dish 7 and welds, seals with glass housing 1 usefulness valve alloy, right-hand member is bled and is chewed 9, coupling 10, after anode bodies 2, cathode 3, lead 6 assemblings are finished and sealed, secures after chewing 9 air of extracting out in the housings by bleeding, form vacuum chamber 8 in the glass housing 1, the vacuum degree in the vacuum chamber 8 is 10 ^-6-10 ^-7Torr is to strengthen resistance to pressure and insulating properties.

Shown in Figure 2, anode bodies 2 right-hand members are stretched in the housing 1 by the intermediate throughholes that anode connects dish 7, and connect dish 7 intermediate throughholes with anode and weld with silver soldering, sealing, match with the endoporus of radiator 5 in anode bodies 2 middle parts, and weld sealing with silver soldering, the x ray happening part of anode bodies 2 is in the outside of housing 1 and radiator 5, electron beam receive path 16 in the anode bodies 2 must be aimed at the poly-passage 24 of penetrating of electron beam, target body 13 is housed in the target chamber 14, anode tungsten target 11 is housed on the inclined-plane of target body 13, anode tungsten target 11 is made by W elements, and the bump of reception electron beam 25, the center line of anode tungsten target 11 must be aimed at the center line of ray window 15, thereby guarantee can be applied to the outside accurately by the x ray that electron beam 25 impinge anode tungsten targets 11 produce, stud with beryllium dividing plate 12 in the ray window 15, beryllium dividing plate 12 is made by beryllium element, can make the x ray filter out the long useless soft ray of a part of wavelength, discharge by ray window 15 then at this beryllium dividing plate 12.

Fig. 2, shown in 3, cathode 3 is contained in the right-hand member inside of housing 1, filament 19 telophragma spirality, leg is stretched out at two ends, two legs insert through wires hole 22 respectively in filament chamber 23, enter wire connection cavity 21, with lead 6 just, negative pole welding UNICOM, cathode 3 and housing 1 are vacuum chamber 8 in and bleed and chew 9, but the inwall of coupling 10 welds with the valve alloy, it is to strengthen electric energy to release energy that filament 19 enters filament chamber 23 coiled purposes through through wires hole 22, the electron beam 25 that filament 19 produces is penetrated passage 24 and is entered vacuum chamber 8 through electron beam is poly-, entering the electron beam receive path 16 of anode bodies 2 then, gather and penetrate the middle part that cover 20 is contained in cathode 3, is the major part of cathode 3 dispensing electron beams.

Shown in Figure 2: radiator 5 is made by copper material, uniform 6 fixing threaded holes 26 on the left side, seal groove 18, the anode of right-hand member and housing 1 connects dish 7 connections and welds with silver soldering, sealing, interstitial hole portion is enclosed within the outer through last of anode bodies 2, and weld sealing with silver soldering, because electron beam 25 impinge anode tungsten targets 11 backs that the filament 19 of cathode 3 produces produce huge kinetic energy, and produce a large amount of heats thereupon, 99% heat will be shed by radiator 5,1% electric energy converts the x ray to by electron beam 25 impinge anode tungsten targets 11, radiator 5 connects dish 7 by anode, the heat that anode bodies 2 receives in the housing 1, because radiator 5 is made by copper material, very easily conduct heat and heat conduction, so can well receive heat and extract out receive the heat that comes external and lost by the blower fan of crack detector, because radiator 5 strengthens than the radiator of prior art, thus the heat that has guaranteed 99% in the housing 1 can well discharge, also just guaranteed the normal operation of x ray tube.The x ray tube places being covered with in the housing of protecting sheet lead of crack detector, thereby has guaranteed the safe in utilization of crack detector.

The filament 19 of negative electrode 3 is 6V, and accelerating voltage is up to more than 200 kilovolts, during work, adds between anode bodies 2 and the cathode 3 that 200 kilovolts the acceleration high pressure and the power supply of lead 6 must connect simultaneously, thereby can guarantee that ray tube normally moves.

Shown in Figure 2: but cathode cap 4 is enclosed within that bleeding of housing 1 chews 9, coupling 10 outside and weld or cement with the valve alloy, lead 6 passes in the wire connection cavity 21 that cathode cap 4, housing 1 enter cathode 3 and connects with filament 19, and lead 6 welds and seals with silver soldering with the connection of housing 1.Cathode cap 4 also has 9 effects that are not destroyed of chewing of bleeding of protecting.

Claims (5)

1, industrial x ray tube with external target type anode bodies, primary structure comprises housing, anode bodies, cathode, radiator, cathode cap, lead, it is characterized in that: the left end of described housing (1) is equipped with anode bodies (2), radiator (5) is equipped with in the outside of anode bodies (2), anode bodies (2) right-hand member stretches in the housing (1), anode bodies (2) left end places housing (1), radiator (5) outside, cathode (3) is equipped with in the right-hand member inside of housing (1), cathode cap (4) is equipped with in the right-hand member outside of housing (1), cathode cap (4) outside connects lead (6), is vacuum chamber (8) in the housing (1).

2, the industrial x ray tube with external target type anode bodies according to claim 1, it is characterized in that: described anode bodies (2) right-hand member inside is provided with electron beam receive path (16), and the target chamber (14) of UNICOM's left end, target body (13) is housed in the target chamber (14), anode tungsten target (11) is housed on the inclined-plane of target body (13), the left end of target body (13) has fixing threaded hole (17), and the below UNICOM ray window (15) of target chamber (14) is equipped with beryllium dividing plate (12) in the ray window (15).

3, industrial x ray tube with external target type anode bodies according to claim 1, it is characterized in that: the poly-cover (20) of penetrating is equipped with in described cathode (3) bosom position, poly-penetrating has two place's through wires holes (22) in the cover (20), it is poly-that to penetrate cover (20) right-hand member be wire connection cavity (21), poly-left end UNICOM filament chamber (23) of penetrating cover (20), the poly-passage (24) of penetrating of filament chamber (23) UNICOM electron beam, filament (19) links with an end of lead (6) in wire connection cavity (21), enter filament chamber (23) hub disk spirality by through wires hole (22), another hole of process through wires hole (22) enters in the wire connection cavity (21) and connects with lead (6).

4, the industrial x ray tube with external target type anode bodies according to claim 1, it is characterized in that: described radiator (5) is disc, inside is circular hole and cooperates connection with the cylindrical portion of anode bodies (2), left side uniform (6) individual fixing threaded holes (27), left side have annular seal groove (18).

5, the industrial x ray tube with external target type anode bodies according to claim 1, it is characterized in that: described housing (1) is the Vitrea circle shape that encrusts, there is vacuum chamber (8) inside, and left end is that anode connects dish (7), and right-hand member is chewed (9) and coupling (10) for bleeding.