阅读说明：本技术 一种高能点火气体放电管的充气系统及其充电方法 (Inflation system of high-energy ignition gas discharge tube and charging method thereof ) 是由 邱春富 于 2019-11-18 设计创作，主要内容包括：本发明公开一种高能点火气体放电管的充气系统及其充电方法,解决现有技术难以控制氚的引入量导致放电管放电稳定性难以保证,从而导致批量生产的放电管一致性较差,最终无法进行大批量使用的技术问题。充气系统包括外真空加热罩、真空管、第一抽真空装置、第二抽真空装置、储气罐、供氢气瓶、供氩气瓶和氚气供给装置。充气的方法主要为在氢氩混合气体中加入放射性元素氚,加氚时通过控制氚靶总量、加热温度和时间以实现加入氚气的精确控制。本发明可用于高能点火放电管批量充气生产,能够较为准确的控制放电管管内气体成分及比例,从而使放电管的放电稳定性得到较大提升,充气生产出的高能点火气体放电管产品一致性增强,满足大批量充气生产。(The invention discloses an inflation system of a high-energy ignition gas discharge tube and a charging method thereof, which solve the technical problems that in the prior art, the discharge stability of the discharge tube is difficult to ensure due to the difficulty in controlling the introduction amount of tritium, so that the discharge tubes produced in batches have poor consistency and can not be used in batches finally. The inflation system comprises an outer vacuum heating cover, a vacuum tube, a first vacuumizing device, a second vacuumizing device, a gas storage tank, a hydrogen supply cylinder, an argon supply cylinder and a tritium supply device. The method for charging the gas mainly comprises the steps of adding a radioactive element tritium into a hydrogen-argon mixed gas, and accurately controlling the tritium adding through controlling the total amount of a tritium target, the heating temperature and the time during tritium adding. The invention can be used for the batch inflation production of the high-energy ignition discharge tubes, and can accurately control the components and the proportion of gas in the discharge tubes, thereby greatly improving the discharge stability of the discharge tubes, enhancing the product consistency of the high-energy ignition gas discharge tubes produced by inflation, and meeting the requirement of mass inflation production.)

1. The inflation system of the high-energy ignition gas discharge tube is characterized by comprising an outer vacuum heating cover (1), a vacuum tube (2) which is positioned in the outer vacuum heating cover (1) and used for installing the high-energy ignition gas discharge tube to be inflated, a first vacuumizing device (3) communicated with the outer vacuum heating cover (1), a second vacuumizing device (4) communicated with the vacuum tube (2), a gas storage tank (5) communicated with the vacuum tube (2) through a pipeline, and a hydrogen supply gas bottle (6) and an argon supply gas bottle (7) which are respectively communicated with the gas storage tank (5) through pipelines; the gas holder (5) is connected with a tritium gas supply device (8) which is used for quantitatively providing tritium gas for the gas holder (5) through a pipeline.

2. The system of claim 1, wherein the tritium gas supply device (8) comprises a housing (81), a tritium storage bed (82) which is arranged in the housing (81) and connected with the gas storage tank (5) through a pipeline and is commonly used for placing tritium targets, and a heating device which is arranged in the housing (81) and is used for heating the tritium storage bed (82).

3. The system for filling a high-energy ignition gas discharge tube of claim 2, wherein the tritium gas supply device (8) further comprises a heat insulation structure (86) arranged in the outer shell (81), and the tritium storage bed (82), the heating device and the heat insulation structure (86) are sequentially distributed in the outer shell (81) from inside to outside.

4. A system for gassing a high energy ignition gas discharge tube according to claim 3 wherein the heating means comprises a thermocouple (84) and a heating wire (83) for heating the tritium storage bed (82) both located within the thermal insulation structure (86), and an electric cabinet (85) located outside the housing (81) and electrically connected to the heating wire (83) and the thermocouple (84), respectively.

5. The system of claim 4, wherein a gap (87) is formed between the inner wall of the outer housing (81) and the outer wall of the thermal insulation structure (86), and a support member (88) for fixing the thermal insulation structure (86) is disposed in the gap.

6. The system of claim 5, wherein the gas storage tank (5) is connected with a gas inlet and outlet pipe (14), a seventh valve (9) is arranged on the gas inlet and outlet pipe (14), and the outer vacuum heating cover (1), the hydrogen supply cylinder (6), the argon supply cylinder (7) and the tritium storage bed (82) are respectively communicated with the gas inlet and outlet pipe (14) through pipelines.

7. The system for inflating a high-energy ignition gas discharge tube as claimed in claim 6, wherein a second film pressure sensor (10), a manual fine adjustment valve (11), a first film pressure sensor (12) and an inflation valve (13) are sequentially arranged on a pipeline of the air inlet/outlet tube (14) communicated with the outer vacuum heating cover (1) along the air flow direction.

8. The system of claim 6, wherein a sixth valve (15) is disposed on a pipeline connecting the hydrogen supply bottle (6) and the gas inlet/outlet pipe (14), a fifth valve (16) is disposed on a pipeline connecting the argon supply bottle (7) and the gas inlet/outlet pipe (14), and a fourth valve (17) is disposed on a pipeline connecting the tritium gas supply device (8) and the gas inlet/outlet pipe (14).

9. The system for filling a high-energy ignition gas discharge tube of claim 1, wherein the first evacuating device (3) comprises a mechanical pump (18), a second valve (19) and a first resistance gauge (20), the mechanical pump (18) is communicated with the interior of the outer vacuum heating cover (1) through a pipeline, the second valve (19) and the first resistance gauge (20) are sequentially distributed on the pipeline where the mechanical pump (18) is communicated with the outer vacuum heating cover (1), and the first resistance gauge (19) is distributed close to the outer vacuum heating cover (1);

the second vacuum pumping device (4) comprises a first dry pump (21) communicated with the vacuum tube (2) through a pipeline and a molecular pump (22) communicated with the vacuum tube (2) through a pipeline, a pre-pumping valve (23) and a second resistance gauge (24) are sequentially arranged on the pipeline communicated with the vacuum tube (2) through the first dry pump (21) along the airflow direction, a composite gauge (27) and a high vacuum valve (25) are sequentially arranged on the pipeline communicated with the vacuum tube (2) through the molecular pump (22) along the airflow direction, a gauge pipe valve (26) is arranged at the inlet of the composite gauge (27), the molecular pump (22) is connected with the dry pump (21) through a pipeline, and a front-stage valve (37) is arranged on the pipeline.

10. The system for filling a high-energy ignition gas discharge tube according to any one of claims 1-9, further comprising a pressure equalizing device and a tritium recovery device, wherein the pressure equalizing device comprises an outer pressure equalizing pipeline (28) communicated with the inside of the outer vacuum heating jacket (1) and an inner pressure equalizing pipeline (29) communicated with the vacuum tube (2), a first valve (30) is arranged on the outer pressure equalizing pipeline (28), a third valve (31) is arranged on the inner pressure equalizing pipeline (29), the outer vacuum heating jacket (1) is communicated with the outside atmosphere through the outer pressure equalizing pipeline (28), and the vacuum tube (2) is communicated with a nitrogen source with 1 standard atmosphere through the inner pressure equalizing pipeline (29);

the tritium gas recovery device comprises a recovery pipe (32) connected with the vacuum pipe (2), a tritium recovery device (33) connected with the vacuum pipe (2) through the recovery pipe (32), an eighth valve (34) and a second dry pump (35) which are arranged on the recovery pipe (32) along the direction of air flow.

11. The method for inflating the high-energy ignition gas discharge tube by adopting the inflation system is characterized by comprising the following steps of:

step 1, starting a pressure equalizing device to enable an outer vacuum heating cover and a vacuum tube to be uniformly pressurized to 1 standard air pressure, connecting a high-energy ignition gas discharge tube to be inflated into the vacuum tube, putting a tritium target into a tritium storage bed, and closing the pressure equalizing device;

step 2, starting the first vacuumizing device and the second vacuumizing device in sequence, and vacuumizing the outer vacuum heating cover and the vacuum tube;

step 3, starting a tritium gas supply device, quantitatively charging tritium gas into the gas storage tank, and then closing the gas storage tank;

step 4, opening an argon supply cylinder, quantitatively filling argon into the gas storage tank, and then closing the gas storage tank;

step 5, opening a hydrogen supply cylinder, quantitatively filling hydrogen into the gas storage tank, and then closing the gas storage tank;

and 6, opening the gas storage tank and the vacuum tube to charge the mixed gas into the high-energy ignition gas discharge tube to be charged.

Technical Field

The invention relates to the technical field of inflation of high-energy ignition gas discharge tubes, in particular to an inflation system of a high-energy ignition gas discharge tube and a charging method thereof.

Background

The high-energy ignition gas discharge tube is mainly used for high-energy igniters, and is widely applied to ignition devices of aircraft engines, airborne missile-borne engines, ships, fuel gas, boilers and the like, and various combustible gas emptying torch devices of petrochemical industry, coal chemical industry, natural gas engineering, metallurgy, environmental protection and the like. The discharge tube is used as a switching element for controlling large energy in the high-energy igniter, so that high voltage on the capacitor breaks down the discharge tube to rapidly discharge to the semiconductor resistor, a pulse arc is generated, and ignition is finished. The discharge tube is an important element of a high-energy igniter, the working voltage is up to thousands of volts, the discharge energy is dozens of joules, the performance of the discharge tube has a key influence on the reliability of the igniter, and particularly, the quality of the discharge tube is higher in the aviation field.

High energy ignition gas discharge tube working gas fills certain atmospheric pressure, the nitrogen-hydrogen gas mixture of certain proportion, still need mix into a certain amount of radioactivity tritium in the nitrogen-hydrogen gas mixture simultaneously, when aerifing high energy ignition gas discharge tube at present, generally adopt direct inflation method or gas mixture method, but the introduction volume of radioactive element tritium is difficult to control, thereby lead to high energy ignition gas discharge tube's the stability of discharging to be difficult to guarantee, the high energy ignition gas discharge tube uniformity of the batch inflation production is relatively poor, can't carry out use in batches.

Therefore, an inflation system of a high-energy ignition gas discharge tube and a charging method thereof are designed for batch inflation production of the high-energy ignition gas discharge tube, and gas components and proportion in the discharge tube can be accurately controlled, so that the discharge stability of the discharge tube is improved, the consistency of batch high-energy ignition gas discharge tube products is enhanced, the requirement of batch production of the high-energy ignition gas discharge tube is finally met, and the technical problem to be solved by technical personnel in the technical field is urgently needed.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides an aerify system of high energy ignition gas discharge tube and method of charging thereof, solves prior art and is difficult to control the introduction of radioactive element tritium when aerifing to lead to the high energy ignition gas discharge tube discharge stability to be difficult to guarantee, and then lead to its high energy ignition gas discharge tube uniformity of aerifing production in batches relatively poor, finally can't carry out the technical problem that uses in batches.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an inflation system of a high-energy ignition gas discharge tube comprises an outer vacuum heating cover, a vacuum tube, a first vacuumizing device, a second vacuumizing device, a gas storage tank, a hydrogen supply bottle and an argon supply bottle, wherein the vacuum tube is positioned in the outer vacuum heating cover and used for installing the high-energy ignition gas discharge tube to be inflated; the gas holder is connected with a tritium gas supply device for quantitatively providing tritium gas for the gas holder through a pipeline.

Further, tritium gas feeding device includes the shell, locate in the shell through the pipeline with the gas holder is linked together and is used for placing the storage tritium bed of tritium target, and locate be used for in the shell for do store up the heating device of tritium bed heating.

Further, tritium gas feeding device still including locating insulation construction in the shell, store up the tritium bed, heating device, and insulation construction is in from interior to exterior distribution in proper order in the shell.

Further, heating device includes all be located thermal insulation structure's thermocouple and be used for store up the heating wire of tritium bed heating, and be located outside the shell and respectively with the heating wire with thermocouple electric connection's electric cabinet.

Further, a gap is formed between the inner wall of the shell and the outer wall of the heat insulation structure, and a support piece for fixing the heat insulation structure is arranged in the gap.

Further, the gas storage tank is connected with a gas inlet and outlet pipe, a seventh valve is arranged on the gas inlet and outlet pipe, and the outer vacuum heating cover, the hydrogen supply cylinder, the argon supply cylinder and the tritium storage bed are respectively communicated with the gas inlet and outlet pipe through pipelines.

Furthermore, a second film pressure sensor, a manual fine adjustment valve, a first film pressure sensor and an inflation valve are sequentially arranged on a pipeline, communicated with the outer vacuum heating cover, of the air inlet and outlet pipe along the airflow direction.

Furthermore, a sixth valve is arranged on a pipeline communicated with the hydrogen supply cylinder and the gas inlet and outlet pipe, a fifth valve is arranged on a pipeline communicated with the argon supply cylinder and the gas inlet and outlet pipe, and a fourth valve is arranged on a pipeline communicated with the tritium gas supply device and the gas inlet and outlet pipe.

Further, the first vacuumizing device comprises a mechanical pump, a second valve and a first resistance gauge, the mechanical pump is communicated with the interior of the outer vacuum heating cover through a pipeline, the second valve and the first resistance gauge are sequentially distributed on the pipeline communicated with the mechanical pump and the outer vacuum heating cover, and the first resistance gauge is distributed close to the outer vacuum heating cover;

the second vacuum pumping device comprises a first dry pump communicated with the vacuum tube through a pipeline and a molecular pump communicated with the vacuum tube through a pipeline, a pre-pumping valve and a second resistance gauge are sequentially arranged on the pipeline communicated with the vacuum tube through the pipeline along the airflow direction, a composite gauge and a high vacuum valve are sequentially arranged on the pipeline communicated with the vacuum tube through the molecular pump along the airflow direction, a gauge pipe valve is arranged at the inlet of the composite gauge, and the molecular pump is connected with the dry pump through a pipeline and is provided with a front-stage valve.

The pressure equalizing device comprises an outer pressure equalizing pipeline communicated with the inside of the outer vacuum heating cover and an inner pressure equalizing pipeline communicated with the vacuum pipe, a first valve is arranged on the outer pressure equalizing pipeline, a third valve is arranged on the inner pressure equalizing pipeline, the outer vacuum heating cover is communicated with the outside atmosphere through the outer pressure equalizing pipeline, and the vacuum pipe is communicated with a nitrogen source with 1 standard atmospheric pressure through the inner pressure equalizing pipeline;

the tritium gas recovery device comprises a recovery pipe connected with the vacuum pipe, a tritium recovery device connected with the vacuum pipe through the recovery pipe, an eighth valve and a second dry pump, wherein the eighth valve and the second dry pump are arranged on the recovery pipe along the direction of the air flow.

The method for inflating the high-energy ignition gas discharge tube by adopting the inflation system comprises the following steps:

step 1, starting a pressure equalizing device to enable an outer vacuum heating cover and a vacuum tube to be uniformly pressurized to 1 standard air pressure, connecting a high-energy ignition gas discharge tube to be inflated into the vacuum tube, putting a tritium target into a tritium storage bed, and closing the pressure equalizing device;

step 2, starting the first vacuumizing device and the second vacuumizing device in sequence, and vacuumizing the outer vacuum heating cover and the vacuum tube;

step 3, starting a tritium gas supply device, quantitatively charging tritium gas into the gas storage tank, and then closing the gas storage tank;

step 4, opening an argon supply cylinder, quantitatively filling argon into the gas storage tank, and then closing the gas storage tank;

step 5, opening a hydrogen supply cylinder, quantitatively filling hydrogen into the gas storage tank, and then closing the gas storage tank;

and 6, opening the gas storage tank and the vacuum tube to charge the mixed gas into the high-energy ignition gas discharge tube to be charged.

Compared with the prior art, the invention has the following beneficial effects:

the inflation system has the advantages of simple structure, scientific and reasonable design and convenient use, can be used for batch inflation production of the high-energy ignition discharge tube, and can accurately control the components and the proportion of gas in the discharge tube, thereby greatly improving the discharge stability of the discharge tube, enhancing the product consistency of the high-energy ignition gas discharge tube produced by inflation, and meeting the requirement of batch inflation production. The gas filling method is simple and convenient to operate, has smooth flow, and can efficiently and stably fill the high-energy ignition gas discharge tubes in batches.

Drawings

FIG. 1 is a block diagram of the inflation system of the present invention.

FIG. 2 is a schematic view of the tritium gas supply apparatus according to the present invention.

FIG. 3 is a cross-sectional view of a tritium gas supply apparatus according to the present invention.

Fig. 4 is a cross-sectional view of the housing of the present invention.

Fig. 5 is a schematic view of the heating wire structure of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-an external vacuum heating cover, 2-a vacuum tube, 3-a first vacuumizing device, 4-a second vacuumizing device, 5-a gas storage tank, 6-a hydrogen supply cylinder, 7-an argon supply cylinder, 8-a tritium supply device, 81-a shell, 82-a tritium storage bed, 83-an electric heating wire, 84-a thermocouple, 85-an electric cabinet, 86-a heat preservation structure, 87-a gap, 88-a supporting piece, 9-a seventh valve, 10-a second film pressure sensor, 11-a manual fine adjustment valve, 12-a first film pressure sensor, 13-an inflation valve, 14-an air inlet and outlet pipe, 15-a sixth valve, 16-a fifth valve, 17-a fourth valve, 18-a mechanical pump, 19-a second valve, 20-a first resistance gauge, 21-a first dry pump, 22-a molecular pump, 23-a pre-pumping valve, 24-a second resistance gauge, 25-a high vacuum valve, 26-a gauge pipe valve, 27-a composite gauge, 28-an outer pressure equalizing pipeline, 29-an inner pressure equalizing pipeline, 30-a first valve, 31-a third valve, 32-a recovery pipe, 33-a tritium recovery device, 34-an eighth valve, 35-a second dry pump, 36-a high-energy ignition gas discharge pipe to be inflated and 37-a front-stage valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-5, the inflation system of the high-energy ignition gas discharge tube provided by the invention has the advantages of simple structure, scientific and reasonable design and convenient use, can be used for batch inflation production of the high-energy ignition gas discharge tube, and can accurately control the components and the proportion of gas in the discharge tube, so that the discharge stability of the discharge tube is greatly improved, the consistency of the high-energy ignition gas discharge tube product produced by inflation is enhanced, and the requirement of mass inflation production is met. The device comprises an outer vacuum heating cover 1, a vacuum tube 2 which is positioned in the outer vacuum heating cover 1 and is used for installing a high-energy ignition gas discharge tube 36 to be inflated, a first vacuumizing device 3 communicated with the outer vacuum heating cover 1, a second vacuumizing device 4 communicated with the vacuum tube 2, a gas storage tank 5 communicated with the vacuum tube 2 through a pipeline, and a hydrogen supply gas bottle 6 and an argon supply gas bottle 7 which are respectively communicated with the gas storage tank 5 through pipelines; the gas storage tank 5 is connected with a tritium gas supply device 8 which is used for quantitatively providing tritium gas for the gas storage tank 5 through a pipeline.

The tritium gas supply device 8 comprises a shell 81, a tritium storage bed 82 which is arranged in the shell 81 and is connected with the gas storage tank 5 through a pipeline and used for placing tritium targets, and a heating device which is arranged in the shell 81 and used for heating the tritium storage bed 82. The tritium gas supply device 8 further comprises a heat insulation structure 86 arranged in the shell 81, and the tritium storage bed 82, the heating device and the heat insulation structure 86 are sequentially distributed in the shell 81 from inside to outside. The heating device comprises a thermocouple 84 and a heating wire 83, wherein the thermocouple 84 and the heating wire 83 are both positioned in the heat insulation structure 86 and are used for heating the tritium storage bed 82, and an electric cabinet 85 is positioned outside the shell 81 and is respectively and electrically connected with the heating wire 83 and the thermocouple 84. A gap 87 is formed between the inner wall of the housing 81 and the outer wall of the thermal insulation structure 86, and a support 88 for fixing the thermal insulation structure 86 is provided in the gap.

The shell is a stainless steel shell and is in a hollow cylindrical shape; the heat preservation structure is also in a hollow cylindrical shape and is arranged in the stainless steel shell; the tritium storage bed is hollow cylindrical, one end of the tritium storage bed is opened, the tritium storage bed is arranged in the heat insulation structure, the opened end of the tritium storage bed is hermetically connected with an external pipeline through a glass section, and the tritium storage bed, the heat insulation structure and the shell are concentrically distributed. Leave the cylindric space between shell and the insulation construction, be equipped with support piece in this space, support piece is used for fixed insulation construction, and support piece is the ceramic rod best, and three ceramic rod circumference equidistance distribute in the insulation construction periphery, as shown in fig. 3 and 4, a plurality of ceramic rod inserting groove has been seted up to shell inner wall circumference equidistance, and in the ceramic rod inserting groove of inserting shell inner wall, the ceramic rod exposes the side then with the insulation construction outer wall top end mutually with fixed insulation construction. A gap is formed between the inner wall of the heat preservation structure and the outer wall of the tritium storage bed, the heating wire and the thermocouple are arranged in the gap, the heating wire is preferably a molybdenum wire and is spiral, the tritium storage bed is located in the spiral of the molybdenum wire, one end of the molybdenum wire directly penetrates through the bottom of the heat preservation structure to be connected with the electric cabinet, the other end of the molybdenum wire penetrates through the bottom of the heat preservation structure to be connected with the electric cabinet after being routed to the cylindrical gap between the shell and the heat preservation structure, the thermocouple is inserted at the bottom of the heat preservation structure, the measuring end is located in the gap between the inner wall of the bottom of the heat preservation structure and the outer wall of the tritium.

The gas storage tank 5 is connected with a gas inlet and outlet pipe 14, the gas inlet and outlet pipe 14 is provided with a seventh valve 9, and the outer vacuum heating cover 1, the hydrogen supply bottle 6, the argon supply bottle 7 and the tritium storage bed 82 are respectively communicated with the gas inlet and outlet pipe 14 through pipelines. And a pipeline of the air inlet and outlet pipe 14 communicated with the outer vacuum heating cover 1 is sequentially provided with a second film pressure sensor 10, a manual fine adjustment valve 11, a first film pressure sensor 12 and an inflation valve 13 along the airflow direction. A sixth valve 15 is arranged on a pipeline communicated with the gas inlet and outlet pipe 14 through the hydrogen supply bottle 6, a fifth valve 16 is arranged on a pipeline communicated with the gas inlet and outlet pipe 14 through the argon supply bottle 7, and a fourth valve 17 is arranged on a pipeline communicated with the gas inlet and outlet pipe 14 through the tritium gas supply device 8.

The first vacuumizing device 3 comprises a mechanical pump 18, a second valve 19 and a first resistance gauge 20, wherein the mechanical pump 18 is communicated with the interior of the outer vacuum heating cover 1 through a pipeline, the second valve 19 and the first resistance gauge 20 are sequentially distributed on the pipeline communicated with the mechanical pump 18 and the outer vacuum heating cover 1, and the first resistance gauge 19 is distributed close to the outer vacuum heating cover 1; the second vacuum pumping device 4 comprises a first dry pump 21 communicated with the vacuum tube 2 through a pipeline and a molecular pump 22 communicated with the vacuum tube 2 through a pipeline, a pre-pumping valve 23 and a second resistance gauge 24 are sequentially arranged on the pipeline communicated with the vacuum tube 2 through the first dry pump 21 along the air flow direction, a composite gauge 27 and a high vacuum valve 25 are sequentially arranged on the pipeline communicated with the vacuum tube 2 through the molecular pump 22 along the air flow direction, a gauge tube valve 26 is arranged at the inlet of the composite gauge 27, and the molecular pump 22 is connected with the dry pump 21 through a pipeline and is provided with a front-stage valve 37.

The invention also comprises a pressure equalizing device and tritium gas recovery equipment, wherein the pressure equalizing device comprises an outer pressure equalizing pipeline 28 communicated with the inner part of the outer vacuum heating cover 1 and an inner pressure equalizing pipeline 29 communicated with the vacuum pipe 2, the outer pressure equalizing pipeline 28 is provided with a first valve 30, the inner pressure equalizing pipeline 29 is provided with a third valve 31, the outer vacuum heating cover 1 is communicated with the outside atmosphere through the outer pressure equalizing pipeline 28, and the vacuum pipe 2 is communicated with a nitrogen source with 1 standard atmospheric pressure through the inner pressure equalizing pipeline 29; the tritium gas recovery device comprises a recovery pipe 32 connected with the vacuum pipe 2, a tritium recovery device 33 connected with the vacuum pipe 2 through the recovery pipe 32, an eighth valve 34 arranged on the recovery pipe 32 along the direction of the air flow, and a second dry pump 35.

The hydrogen supply cylinder and the argon supply cylinder used in the invention are provided with pressure reducing valves, the film pressure sensor, the thermocouple, the electric cabinet, the film pressure sensor, the dry pump, the molecular pump, the mechanical pump and other electrical equipment used in the invention are all known equipment, and the structure, the circuit and the control principle of the film pressure sensor, the thermocouple, the electric cabinet, the film pressure sensor, the dry pump, the molecular pump, the mechanical pump and other electrical equipment are all known technologies, so that the structure, the circuit and the control principle of the film pressure sensor, the thermocouple, the electric cabinet, the film pressure sensor, the dry pump, the molecular pump, the mechanical pump and other electrical equipment used in the invention are not repeated. The composite gauge used in the invention comprises a composite resistance gauge and an ionization gauge.

The invention provides a method for inflating a high-energy ignition gas discharge tube by adopting the inflation system, which comprises the following steps:

step 1, starting a pressure equalizing device to enable an outer vacuum heating cover and a vacuum tube to be uniformly pressurized to 1 standard air pressure, connecting a high-energy ignition gas discharge tube to be inflated into the vacuum tube, putting a tritium target into a tritium storage bed, and closing the pressure equalizing device;

step 2, starting the first vacuumizing device and the second vacuumizing device in sequence, and vacuumizing the outer vacuum heating cover and the vacuum tube;

step 3, starting a tritium gas supply device, quantitatively charging tritium gas into the gas storage tank, and then closing the gas storage tank;

step 4, opening an argon supply cylinder, quantitatively filling argon into the gas storage tank, and then closing the gas storage tank;

step 5, opening a hydrogen supply cylinder, quantitatively filling hydrogen into the gas storage tank, and then closing the gas storage tank;

and 6, opening the gas storage tank and the vacuum tube to charge the mixed gas into the high-energy ignition gas discharge tube to be charged.

The method is a gas mixing method, radioactive element tritium is quantitatively added into hydrogen-argon mixed gas, tritium target is heated to release tritium gas and introduce the radioactive element tritium, gaseous tritium gas is obtained by controlling the total amount, the heating temperature and the time of the tritium target, and the accurate control of the adding amount of the tritium gas is realized.

As shown in fig. 1, in order to make those skilled in the art better understand the technical solution of the present invention, the following examples are specifically provided for illustration.

The volume of a gas mixing system in the gas charging system is 4.25L, the total pressure is 800kPa, and the total content of tritium gas is 750-1000 milliCurie. The specific operation is as follows:

(1) open valve 1 and 3 in proper order, close after 30s, make in the outer vacuum heating cover and the vacuum tube voltage-sharing be 1 atmospheric pressure, so can make things convenient for the operator to open outer vacuum heating cover, and will wait to aerify high energy ignition gas discharge tube product and insert the vacuum tube, can insert a plurality ofly in batches simultaneously and wait to aerify high energy ignition gas discharge tube product, then with in the tritium gas feeding device access system, it is connected with the pipeline that communicates on the gas holder through the glass linkage segment with storing up the tritium bed, it has four tritium targets to put in advance in the tritium bed to store up, the adsorption capacity of tritium target is 200 ~ 250 millicuries.

(2) And opening the dry pump, the pre-pumping valve, the inflation valve, the manual fine adjustment valve, the seventh valve, the sixth valve, the fifth valve and the fourth valve in sequence, and closing the pre-pumping valve when the second resistance gauge is lower than 10Pa after the pre-pumping valve is opened. And then opening a mechanical pump and a second valve to vacuumize the interior of the outer vacuum heating cover to within 1Pa (so that the surface oxidation of the product can be effectively prevented when the outer vacuum heating cover is heated). Then opening the front valve, the molecular pump, the gauge valve and the high vacuum valve (a gate valve is preferably used here, the gate valve is one of the high vacuum valves) to exhaust all the pipelines, and simultaneously raising the temperature of the outer vacuum heating cover to 80 ℃ (the inner wall of the outer vacuum heating cover is provided with heating equipment by itself) until the vacuum degree is lower than 10^-5And when the pressure is Pa, closing a front-stage valve, a molecular pump, a dry pump, a gauge valve and a high vacuum valve.

(3) And closing the inflation valve, the manual fine adjustment valve, the fifth valve and the sixth valve. The electric cabinet is used for controlling the heating wire to heat, so that the temperature of the tritium storage bed is raised to 500 ℃ and is kept for 5min, and thus tritium gas adsorbed by the tritium target in the tritium storage bed can release 95% of tritium gas, and the temperature is 760-950 milliCurie.

(4) And closing the fourth valve, opening an argon supply bottle, opening a fifth valve to charge the gas storage tank, and closing the fifth valve when the reading of the second film pressure sensor is 400 Kpa.

(5) And opening the hydrogen supply bottle, opening the sixth valve to charge the gas storage tank, and closing the sixth valve when the reading of the second film pressure sensor is 800 Kpa.

(6) And finally, inflating the to-be-inflated high-energy ignition gas discharge tube product arranged on the vacuum tube through a manual fine adjustment valve, displaying inflation pressure change in real time by the first film pressure sensor, and when the inflation pressure reaches inflation pressure corresponding to required breakdown voltage.

By the method, on one hand, the gas components in each batch of product pipes can be kept consistent, so that the consistency of the same batch of products is realized; on the other hand, the consistency of products in each batch can be kept when different batches, particularly during gas redistribution. Thereby meeting the quality control requirement of mass production.

For products with high breakdown voltage, the seventh valve can be closed, the eighth valve can be opened, and the products can be pumped by the second dry pump through the manual fine adjustment valve, so that the air pressure in the pipes is reduced, and the required air pressure is achieved.

Based on the environmental protection requirement, the tritium recovery device is arranged, the tritium recovery device in the tritium recovery device is a tritium special recovery device, the tritium recovery device is the existing device, after the high-energy ignition gas discharge tube is filled with gas, the outer vacuum heating cover is opened to take out the high-energy ignition gas discharge tube, and then the tritium recovery device is opened to recover the tritium in the system.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.