阅读说明：本技术 一种营造低温负压环境的爆炸容器 (Explosion container for creating low-temperature negative-pressure environment ) 是由 汪泉 杨礼澳 李志敏 王尹军 李�瑞 程扬帆 吴红波 李雪交 汪凤祺 李孝臣 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种营造低温负压环境的爆炸容器,属于爆破容器技术领域,包括罐体、安装在罐体一侧的水冷式真空泵、安装在罐体另一侧的液冷机以及安装在罐体顶部的抽烟风机,液冷机的另一侧安装有冷却水塔,水冷式真空泵的一侧设有真空泵操作箱,罐体的罐壁由内至外依次设有罐体内壁、罐体中间层和罐体外壁,罐体的上设有防爆真空门。本发明采用热传导的方式降温,无需与内部进行空气交换,降温过程能够与抽真空过程同时进行,大大的降低了实验所需要的准备时间,也减少的多次操作所带来的实验误差,此外本发明能够方便的改变变量,研究不同压力下的爆炸参数,恒温设计使其只需改变真空度便能够快速进行下一次实验。(The invention discloses an explosion container for creating a low-temperature negative-pressure environment, which belongs to the technical field of explosion containers and comprises a tank body, a water-cooled vacuum pump arranged on one side of the tank body, a liquid cooling machine arranged on the other side of the tank body and a smoke exhaust fan arranged at the top of the tank body, wherein a cooling water tower is arranged on the other side of the liquid cooling machine, a vacuum pump operation box is arranged on one side of the water-cooled vacuum pump, the inner wall of the tank body, the middle layer of the tank body and the outer wall of the tank body are sequentially arranged on the wall of the tank body from inside to outside, and an explosion-proof vacuum door is arranged on the tank body. The invention adopts a heat conduction mode for cooling, does not need to exchange air with the interior, can simultaneously carry out the cooling process and the vacuumizing process, greatly reduces the preparation time required by the experiment, and also reduces the experimental error caused by multiple operations.)

1. The utility model provides an explosion container of building low temperature negative pressure environment, its characterized in that, include jar body (31), install water-cooled vacuum pump (20) of jar body (31) one side, install liquid cooling machine (16) of jar body (31) opposite side and install smoke ventilator (11) at jar body (31) top, cooling tower (18) are installed to the opposite side of liquid cooling machine (16), one side of water-cooled vacuum pump (20) is equipped with vacuum pump control box (28), the jar wall of jar body (31) is equipped with jar internal wall (2), jar body intermediate level (3) and jar external wall (4) from interior to exterior in proper order, be equipped with explosion-proof vacuum door (1) on jar body (31), jar body (31) are close to water-cooled one side of vacuum pump (20) is equipped with inside detonating cord A (7) and inside detonating cord B (8), one side of inside detonating cord A (7) is equipped with and is located detonating cord interface on jar external wall (4) A (5) and a detonating cord interface B (6), a cooling liquid storage tank (15) connected through a cooling liquid outlet (10) is arranged on one side of the tank body (31) close to the liquid cooling machine (16), a cooling liquid inlet (9) is arranged above the cooling liquid outlet (10), and a smoke suction port (12) is arranged at the top of the tank body (31).

2. The explosion container for creating low-temperature negative-pressure environment as claimed in claim 1, wherein said smoke exhaust fan (11) comprises said smoke exhaust port (12) inserted into said tank (31), and a smoke exhaust port (14) extending out of said tank (31) through a smoke pipe, and a ball valve (13) is disposed on one side of said smoke exhaust port (14).

3. The explosion container for creating a low-temperature negative-pressure environment according to claim 1, wherein one end of the water-cooled vacuum pump (20) is provided with a vacuum pump cooling water inlet (22), the other end of the water-cooled vacuum pump (20) is provided with a vacuum pump cooling water storage tank (24), the other end of the vacuum pump cooling water storage tank (24) is provided with a vacuum pump cooling water outlet (23), a vacuum pump fixing base (25) is installed at the bottom of the water-cooled vacuum pump (20), a vacuum pump air inlet (21) is opened at the top of the water-cooled vacuum pump (20), and the vacuum pump air inlet (21) is communicated with the tank body (31) through a water pipe.

4. The explosion vessel for creating a low-temperature negative-pressure environment according to claim 1, wherein the internal detonating cord A (7) and the detonating cord interface B (6) are located at the top of the water pipe, and the internal detonating cord B (8) and the detonating cord interface A (5) are located at the bottom of the water pipe.

5. An explosion vessel for creating a low-temperature negative-pressure environment according to claim 1, wherein the cooling liquid inlet (9) is communicated with the liquid cooling machine (16), a cooling system operation box (17) is arranged at the top of the liquid cooling machine (16), and the liquid cooling machine (16) is communicated with a cooling water inlet (19) on the cooling water tower (18) through a pipeline.

6. An explosion container for creating a low-temperature negative-pressure environment according to claim 1, wherein said vacuum pump operating box (28) comprises a plurality of vacuum pump operating buttons (29) and a vacuum indication display window (30) installed above said vacuum pump operating buttons (29).

7. The explosion container for creating the low-temperature negative-pressure environment according to claim 1, wherein the tank body (31) is partially of a yurt type, a vibration damping layer is arranged on a foundation below the tank body (31), the diameter of the lower cylindrical tank body is 4-5 m, the height of the lower cylindrical tank body is 3-3.5 m, the wall thickness of the lower cylindrical tank body is 50-60 mm, two circular hole grooves are arranged at the rear part of the lower cylindrical tank body and used for connecting the sensor, and the two hole grooves are 85-90 degrees from the center of the cylindrical tank body.

8. The explosion container for creating low-temperature negative-pressure environment as claimed in claim 1, wherein the inner wall (2) of the tank body is 2507 ferrite-austenite duplex stainless steel with a thickness of 25-30 mm, the intermediate layer (3) of the tank body is provided with a plurality of layers of serpentine-shaped liquid cooling pipelines for circulating the electronic fluorinated liquid and a glass silk floss filling layer with a thickness of about 20-25 mm, and the outer wall (4) of the tank body is a 304 austenite stainless steel cover with a thickness of 5-8 mm.

9. The explosion container for creating a low-temperature negative-pressure environment as claimed in claim 7, wherein two sides of the water-cooled vacuum pump port on the right side of the lower cylindrical tank body are respectively provided with a slender metal rod, a part facing the inside of the tank is connected with a lead, and a part facing the outside of the tank is provided with a concave clamping groove connected with an initiator circuit.

10. The explosion container for creating low-temperature negative-pressure environment as claimed in claim 1, wherein the right side of the tank body (31) is provided with a notch for connecting a gear type explosion-proof electric contact bimetallic thermometer.

Technical Field

The invention relates to a blasting container, in particular to a blasting container for creating a low-temperature negative-pressure environment, and belongs to the technical field of blasting containers.

Background

With the rising of the national economic development level, the demand for industrial production is increasing day by day, western regions of China, such as Tibet, Xinjiang and the like, have abundant resources, railway construction, mineral product development and the like in the high-altitude regions are required to promote the economic development of the western regions, and convenience is brought to the life of local people, many of the engineering projects need blasting operation, the characteristic of low population density of the local is also suitable for the development of the blasting operation, but the regions have high altitude, which leads to low atmospheric pressure and environment temperature, so that brand new requirements are provided for selection of blasting equipment and adjustment of blasting technology, and at present, research on blasting experiments in low-temperature and low-pressure environments is less, the blasting operation in plateau conditions can be effectively simulated by using an blasting container for creating the low-temperature and low-pressure environment, and important reference and practice are provided for researching parameters of explosives in the plateau environments and selection of the blasting equipment The method has high value and high guiding significance for ammunition damage performance test in high-altitude low-temperature low-pressure environment.

Disclosure of Invention

The invention mainly aims to solve the defects of the prior art and provide an explosion container for creating a low-temperature negative-pressure environment.

The purpose of the invention can be achieved by adopting the following technical scheme:

an explosion container for creating a low-temperature negative-pressure environment comprises a tank body, a water-cooled vacuum pump arranged on one side of the tank body, a liquid cooling machine arranged on the other side of the tank body, and a smoke exhaust fan arranged at the top of the tank body, wherein a cooling tower is arranged on the other side of the liquid cooling machine, a vacuum pump operation box is arranged on one side of the water-cooled vacuum pump, the inner wall of the tank body, the intermediate layer of the tank body and the outer wall of the tank body are sequentially arranged on the wall of the tank body from inside to outside, an explosion-proof vacuum door is arranged on the tank body, an internal detonating cord A and an internal detonating cord B are arranged on one side of the tank body close to the water-cooled vacuum pump, a detonating cord interface A and a detonating cord interface B which are arranged on the outer wall of the tank body, a cooling liquid storage tank connected through a cooling liquid outlet is arranged on one side of the tank body close to the liquid cooling machine, and a cooling liquid inlet is arranged above the cooling liquid outlet, the top of the tank body is provided with a smoking port.

Preferably, the smoke exhaust fan comprises a smoke suction port inserted into the tank body and a smoke exhaust port extending out of the tank body through a smoke conveying pipe, and a spherical valve is arranged on one side of the smoke exhaust port.

Preferably, the one end of water-cooled vacuum pump is equipped with vacuum pump cooling water entry, the other end of water-cooled vacuum pump is equipped with vacuum pump cooling water storage box, the other end of vacuum pump cooling water storage box is equipped with vacuum pump cooling water export, vacuum pump fixed baseplate is installed to the bottom of water-cooled vacuum pump, the vacuum pump air inlet has been seted up at the top of water-cooled vacuum pump, communicate through the raceway on the vacuum pump air inlet jar body.

Preferably, the internal detonating cord A and the detonating cord interface B are positioned at the top of the water conveying pipe, and the internal detonating cord B and the detonating cord interface A are positioned at the bottom of the water conveying pipe.

Preferably, the cooling liquid inlet is communicated with the liquid cooling machine, a cooling system operation box is arranged at the top of the liquid cooling machine, and the liquid cooling machine is communicated with the cooling water inlet on the cooling water tower through a pipeline.

Preferably, the vacuum pump operation box comprises a plurality of vacuum pump operation buttons and a vacuum display window arranged above the vacuum pump operation buttons.

Preferably, the tank body part is in a Mongolian yurt shape, a vibration damping layer is arranged on a foundation below the tank body, the diameter of the lower cylindrical tank body is 4-5 m, the height of the lower cylindrical tank body is 3-3.5 m, the wall thickness of the lower cylindrical tank body is 50-60 mm, two circular hole grooves are formed in the rear of the lower cylindrical tank body and used for being connected with a sensor, and the two hole grooves and the circle center of the cylindrical tank body are 85-90 DEG

Preferably, the inner wall of the tank body is 2507 ferrite-austenite duplex stainless steel with the thickness of 25-30 mm, the middle layer of the tank body is provided with a plurality of layers of coil-shaped liquid cooling pipelines for circulating electronic fluorinated liquid and glass floss filling layers with the thickness of about 20-25 mm, and the outer wall of the tank body is a 304 austenite stainless steel outer cover with the thickness of 5-8 mm.

Preferably, two sides of the water-cooled vacuum pump interface on the right side of the lower cylindrical tank body are respectively provided with a long and thin metal rod, the part facing the inside of the tank is connected with a lead, and the part facing the outside of the tank is provided with a concave clamping groove connected with an initiator circuit.

Preferably, the right side of the tank body is provided with a notch which is connected with a gear type explosion-proof electric contact bimetallic thermometer.

The invention has the beneficial technical effects that:

(1) the explosion container can provide low-temperature and negative-pressure environments simultaneously, can simulate real high-altitude environments, adopts the fluoride liquid to surround the inner wall of the tank body, can keep the temperature in the tank body constant for a long time, is environment-friendly and pollution-free, is internally provided with the gear type explosion-proof electric contact bimetallic thermometer, can accurately control the internal temperature, can perform core pulling disassembly, and has basically unchanged temperature before explosion starts, so that used explosion equipment is fully modified, the experiment precision is greatly improved, the experiment error is reduced to the minimum, the tank body wall is filled with the glass wool cotton, the influence of the external temperature on the inside can be effectively isolated, and the noise and vibration generated by explosion can be absorbed, so that the explosion container can perform experiments in places with dense population;

(2) the invention can change variables conveniently, research explosion parameters under different pressures, and realize constant temperature design so that the next experiment can be carried out quickly only by changing the vacuum degree;

(3) 2507 ferrite-austenite duplex stainless steel is adopted as the inner wall, the heat conductivity is good, the thermal expansion coefficient is extremely low, the cooling system can be rapidly cooled in the interior, the problem of air tightness reduction caused by material shrinkage caused by cooling and the problem of material strength reduction caused by cooling are reduced, and the temperature of the inner wall is delta 0.2/MPa at-20 degrees: the container has the advantages that the container is more than or equal to 550, the container has excellent anti-explosion performance, 304 austenitic stainless steel with poor heat conductivity is adopted for the outer wall to reduce external interference and reduce capacity loss, the interface is sealed by vulcanized silicone rubber, the container has excellent low-temperature resistance and air tightness, the air tightness of the container cannot be influenced in a low-temperature environment, the air tightness of the container cannot be changed in a-30-normal-temperature environment, and the vacuum degree can reach less than 5 Pa.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a preferred embodiment of an explosive container for creating a low temperature negative pressure environment according to the present invention;

FIG. 2 is a schematic diagram of a tank portion of a preferred embodiment of an explosive container according to the present invention for creating a low temperature sub-atmospheric environment;

FIG. 3 is a partially schematic illustration of a cooling system for a preferred embodiment of an explosive container in accordance with the present invention, which creates a low temperature, negative pressure environment;

FIG. 4 is a partial front view of a smoke extractor of an explosive container constructed in accordance with the present invention to create a low temperature, negative pressure environment;

FIG. 5 is a partial front view of an evacuation system of a preferred embodiment of an explosive container in accordance with the present invention for creating a low temperature sub-atmospheric environment;

FIG. 6 is a side view of the vacuum interface portion of a preferred embodiment of an explosive container according to the present invention, which creates a low temperature, negative pressure environment.

In the figure: in the figure: 1-an explosion-proof vacuum door, 2-a tank inner wall, 3-a tank middle layer, 4-a tank outer wall, 5-a detonating cord interface A, 6-a detonating cord interface B, 7-an internal detonating cord A, 8-an internal detonating cord B, 9-a cooling liquid inlet, 10-a cooling liquid outlet, 11-a smoke exhaust fan, 12-a smoke exhaust port, 13-a spherical valve, 14-a smoke exhaust port, 15-a cooling liquid storage tank, 16-a liquid cooler, 17-a cooling system operation box, 18-a cooling water tower, 19-a cooling water inlet, 20-a water-cooled vacuum pump, 21-a vacuum pump air inlet, 22-a vacuum pump cooling water inlet, 23-a vacuum pump cooling water outlet, 24-a vacuum pump cooling water storage box and 25-a vacuum pump fixing base, 26-vacuum pump interface, 27-equipment line and thermometer interface, 28-vacuum pump operation box, 29-vacuum pump operation button, 30-vacuum display window and 31-tank body.

Detailed Description

In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-6, the explosion container for creating a low-temperature negative-pressure environment provided in this embodiment includes a tank 31, a water-cooled vacuum pump 20 installed on one side of the tank 31, a liquid cooler 16 installed on the other side of the tank 31, and a smoke exhaust blower 11 installed on the top of the tank 31, the other side of the liquid cooler 16 is installed with a cooling water tower 18, one side of the water-cooled vacuum pump 20 is provided with a vacuum pump operating box 28, the tank wall of the tank 31 is sequentially provided with a tank inner wall 2, a tank intermediate layer 3, and a tank outer wall 4 from inside to outside, the tank 31 is provided with an explosion-proof vacuum door 1, one side of the tank 31 close to the water-cooled vacuum pump 20 is provided with an internal detonation cord a7 and an internal detonation cord B8, one side of the internal detonation cord a7 is provided with a detonation cord connector a5 and a detonation cord connector B6 located on the tank outer wall 4, one side of the tank 31 close to the liquid cooler 16 is provided with a cooling liquid storage tank 15 connected through a cooling liquid outlet 10, a cooling liquid inlet 9 is arranged above the cooling liquid outlet 10, and a smoking port 12 is arranged at the top of the tank body 31.

In the present embodiment, as shown in fig. 1 and 4, the smoke exhaust fan 11 includes a smoke exhaust port 12 inserted into the tank 31, and a smoke exhaust port 14 extending out of the tank 31 through a smoke transmission pipe, and a ball valve 13 is disposed at one side of the smoke exhaust port 14. One end of the water-cooled vacuum pump 20 is provided with a vacuum pump cooling water inlet 22, the other end of the water-cooled vacuum pump 20 is provided with a vacuum pump cooling water storage box 24, the other end of the vacuum pump cooling water storage box 24 is provided with a vacuum pump cooling water outlet 23, a vacuum pump fixing base 25 is installed at the bottom of the water-cooled vacuum pump 20, a vacuum pump air inlet 21 is formed in the top of the water-cooled vacuum pump 20, and the vacuum pump air inlet 21 is communicated with the tank body 31 through a water conveying pipe.

In this embodiment, as shown in fig. 1 and 2, the internal detonation cord a7 and the detonation cord interface B6 are located at the top of the water transport tube, and the internal detonation cord B8 and the detonation cord interface a5 are located at the bottom of the water transport tube. The cooling liquid inlet 9 is communicated with a liquid cooling machine 16, the top of the liquid cooling machine 16 is provided with a cooling system operation box 17, and the liquid cooling machine 16 is communicated with a cooling water inlet 19 on a cooling water tower 18 through a pipeline. The vacuum pump operating box 28 includes a plurality of vacuum pump operating buttons 29 and a vacuum display window 30 provided above the vacuum pump operating buttons 29. The part of the tank body 31 is in a Mongolian yurt shape, a vibration damping layer is arranged on a foundation below the tank body 31, the highest explosion equivalent of 3kgTNT can be borne in the tank body at minus 30 degrees, the diameter of the lower cylindrical tank body is 4-5 m, the height of the lower cylindrical tank body is 3-3.5 m, the wall thickness of the lower cylindrical tank body is 50-60 mm, two circular hole grooves are formed in the rear of the lower cylindrical tank body and used for connecting a sensor, and the two hole grooves and the circle center of the cylindrical tank body form 85-90 degrees

In this embodiment, as shown in fig. 1 and 6, the inner wall 2 of the can body is 2507 ferrite-austenite duplex stainless steel with a thickness of 25 to 30mm, the middle layer 3 of the can body is provided with a plurality of serpentine-shaped liquid cooling pipes for circulating an electronic fluorinated liquid and a glass floss filler layer with a thickness of about 20 to 25mm, and the outer wall 4 of the can body is a 304 austenite stainless steel cover with a thickness of 5 to 8 mm. Two sides of the water-cooled vacuum pump interface on the right side of the lower cylindrical tank body are respectively provided with a slender metal bar, the part facing the inside of the tank is connected with a lead, and the part facing the outside of the tank is provided with a concave clamping groove connected with an initiator circuit. The right side of the tank body 31 is provided with a notch which is connected with a gear type explosion-proof electric contact bimetallic thermometer.

As shown in fig. 1 to 6, an explosion container for creating a low-temperature negative-pressure environment works according to the following principle:

step 1: opening an inlet of the explosion container, opening a smoke exhaust fan above the tank body, fully circulating the internal air and the outside, and then closing the smoke exhaust fan;

step 2: an operator enters the interior of the explosion container, the explosive, the detonator and other devices are placed perfectly, and the detonator is connected with the internal lead after the external lead is short-circuited;

and step 3: if a sensor or a test instrument circuit needs to be inserted, opening a circular hole groove on the right side of the tank body for placing the sensor or the circuit, and sealing an interface with vacuum mud after the test sensor or the test instrument works normally;

and 4, step 4: after the confirmation of no error, the operator leaves the explosion container and closes the entrance to ensure that the air tightness of the explosion container meets the requirement;

and 5: connecting a water cooling pipeline of a water-cooled vacuum pump, then opening the vacuum pump, observing the numerical value change of a vacuum meter, starting a liquid cooling machine when the vacuum pump normally operates and the numerical value stably changes, and setting the required temperature;

step 6: after the vacuum degree meets the requirement, the vacuum pump is closed, and after the temperature reaches a preset value, the liquid cooling machine is adjusted to a constant temperature mode;

and 7: standing for one hour after the temperature and the vacuum degree meet the requirements, and fully modifying the explosive to reduce experimental errors;

and 8: connecting an initiator and initiating explosive;

and step 9: after the explosion is finished, the liquid cooling machine is closed, the inlet of the explosion container is opened, the smoke exhaust fan above the tank body is opened, and the toxic and harmful gas in the tank body can enter after being basically exhausted;

step 10: and (5) observing an experimental result, and closing an inlet of the explosion container after cleaning the explosion residues in the tank body.

The experimental process is only low-temperature explosion experiment, negative pressure explosion experiment and low-temperature negative pressure explosion experiment.

Example 1

An explosive container for creating a low-temperature negative-pressure environment, comprising the following steps:

step 1: opening an inlet 1 of the explosion container, opening a smoke exhaust fan 11 above the tank body, fully circulating the internal air and the outside, and closing the smoke exhaust fan;

step 2: an operator enters the interior of the explosion container, the explosive, the detonator and other devices are placed perfectly, and the detonator is connected with the internal detonating cord B8 and the internal detonating cord A7 after the external lead is short-circuited;

and step 3: the line of the detonation velocity instrument is connected with the equipment line and the thermometer interface, and the knob is tightened and the interface is sealed by vacuum mud after the normal work of the detonation velocity instrument is tested;

and 4, step 4: after the confirmation of no error, the operator leaves the explosion container and closes the entrance to ensure that the air tightness of the explosion container meets the requirement;

and 5: after a water-cooling pipeline 22 of a water-cooled vacuum pump is connected, a vacuum pump 20 is started, the numerical value change of a vacuum meter is observed, a liquid cooling machine 16 is started when the vacuum pump normally operates and the numerical value stably changes, and the required temperature is set through a cooling system operation box 17;

step 6: after the vacuum degree meets the requirement, the vacuum pump 20 is closed, and after the temperature reaches a preset value, the liquid cooling machine 16 is adjusted to a constant temperature mode;

and 7: standing for one hour after the temperature and the vacuum degree meet the requirements, and fully modifying the explosive to reduce experimental errors;

and 8: the detonator is connected with the detonating cord interfaces 5 and 6 and detonates explosives;

and step 9: after the explosion is finished, the liquid cooling machine 16 is closed, the inlet 1 of the explosion container is opened, the smoke exhaust fan 11 above the tank body is opened, and toxic and harmful gas in the tank body can enter after being basically exhausted;

step 10: observing an experimental result, cleaning explosive residues in the tank body, and then closing an inlet of the explosion container;

example 2

The operation steps of an explosion container for building a low-temperature negative pressure environment are approximately the same as the steps of the embodiment 1, and the difference is that in the embodiment 2, the detonation wave curve of an explosive under the low-temperature negative pressure environment is tested, and a connected instrument is changed into a sensor and an oscilloscope.

Step 1: and opening an inlet of the explosion container, opening the smoke exhaust fan 11 above the tank body, and closing the smoke exhaust fan after the internal air and the outside are fully circulated.

Step 2: an operator enters the interior of the explosion container, the explosive, the detonator and other devices are placed perfectly, and the detonator is connected with the internal detonating cord B8 and the internal detonating cord A7 after the external lead is short-circuited.

And step 3: the sensor is connected to the equipment line and the thermometer interface, and is connected with the oscilloscope to test whether the sensor works normally, and the test oscilloscope can observe the waveform and then tighten the knob and seal the interface with vacuum mud.

And 4, step 4: and after the confirmation of no error, the operator leaves the explosion container and closes the inlet to ensure that the air tightness of the explosion container meets the requirement.

And 5: and (3) connecting a water-cooled vacuum pump water-cooling pipeline 22, then opening a vacuum pump 20, observing the numerical value change of the vacuum meter, opening the liquid cooling machine 16 when the vacuum pump normally operates and the numerical value stably changes, and setting the required temperature through a cooling system operation box 17.

Step 6: and after the vacuum degree meets the requirement, the vacuum pump 20 is closed, and after the temperature reaches a preset value, the liquid cooling machine 16 is adjusted to a constant temperature mode.

And 7: and standing for one hour after the temperature and the vacuum degree meet the requirements, so that the explosive is fully modified to reduce experimental errors.

And 8: the detonator is connected with the detonating cord interfaces 5 and 6 and detonates the explosive.

And step 9: after the explosion is finished, the liquid cooling machine 16 is closed, the inlet 1 of the explosion container is opened, the smoke exhaust fan 11 above the tank body is opened, and toxic and harmful gas in the tank body can enter after being basically exhausted.

Step 10: and (5) observing an experimental result, and closing an inlet of the explosion container after cleaning the explosion residues in the tank body.

Example 3

The operation steps of the explosion container for building the low-temperature negative pressure environment are approximately the same as the steps in the embodiment 1, and the difference is that in the embodiment 3, the brisance of the explosive in the low-temperature negative pressure environment is tested, and instruments do not need to be connected.

Step 1: opening an inlet of the explosion container, opening a smoke exhaust fan 11 above the tank body, fully circulating the internal air and the outside, and then closing the smoke exhaust fan;

step 2: an operator enters the interior of the explosion container, the devices such as explosives, detonators, test lead columns and the like are placed perfectly, and the detonators are connected with the internal detonating wire B8 and the internal detonating wire A7 after the external lead is short-circuited;

and step 3: after the confirmation of no error, the operator leaves the explosion container and closes the entrance to ensure that the air tightness of the explosion container meets the requirement;

and 4, step 4: after a water-cooling pipeline 22 of a water-cooled vacuum pump is connected, a vacuum pump 20 is started, the numerical value change of a vacuum meter is observed, a liquid cooling machine 16 is started when the vacuum pump normally operates and the numerical value stably changes, and the required temperature is set through a cooling system operation box 17;

and 5: after the vacuum degree meets the requirement, the vacuum pump 20 is closed, and after the temperature reaches a preset value, the liquid cooling machine 16 is adjusted to a constant temperature mode;

step 6: standing for one hour after the temperature and the vacuum degree meet the requirements, and fully modifying the explosive to reduce experimental errors;

and 7: the detonator is connected with the detonating cord interfaces 5 and 6 and detonates explosives;

and 8: after the explosion is finished, the liquid cooling machine 16 is closed, the inlet 1 of the explosion container is opened, the smoke exhaust fan 11 above the tank body is opened, and toxic and harmful gas in the tank body can enter after being basically exhausted;

and step 9: and (5) observing an experimental result, and closing an inlet of the explosion container after cleaning the explosion residues in the tank body.

In summary, in this embodiment, the explosion container for creating a low-temperature negative-pressure environment according to this embodiment is cooled in a heat conduction manner, air exchange with the inside is not required, the cooling process can be performed simultaneously with the vacuum pumping process, preparation time required by an experiment is greatly reduced, and experimental errors caused by multiple operations are also reduced.

The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.