41 results about "Internal pressure" patented technology

To provide a method for forming a structure and a structure that can shorten the construction period. [Solution] The method for forming a structure includes: a membrane fixing step of fixing the edges of a first membrane 4, a second membrane 6, and a third membrane 8 to a foundation 2, placing the second membrane 6 on top of the first membrane 4, and placing the third membrane 8 on top of the second membrane 6, and forming a first space 10 between the first membrane 4 and the second membrane 6 and a second space 12 between the second membrane 6 and the third membrane 8; a first filler filling step of filling the first space 10 with a first filler and holding the second membrane 6 in a predetermined shape with the internal pressure of the first filler; and a second filler filling step of filling the second space 12 with a second filler while the second membrane 6 is held in a predetermined shape.

The present application relates to the technical field of underground gas storage, and discloses a double-layer sealing structure for underground gas storage, a design method and a construction method thereof. In the double-layer sealing structure, a complete closed shell is formed by on-site roll bending and continuous welding of a high-elastic steel plate, and together with a sliding layer, forms an overall sealing system without joints and weak links. Compared with the traditional block lining or the scheme of setting expansion joints, the leakage hidden danger caused by stress concentration or material aging at the joints or joints is completely avoided, and the long-term gas-tight reliability of the gas storage under the repeated action of high internal pressure is improved. At the same time, the sliding layer is made of flexible material, which can effectively absorb the displacement and cracking deformation of the surrounding rock caused by pressure change, and uniformly transmit the deformation to the high-elastic steel sealing layer, so that the sealing structure can be transformed from passive adaptation to active adaptation, avoiding stress concentration and crack propagation caused by deformation incoordination of the traditional rigid lining, thereby preventing the sealing layer from being torn or pierced.

This invention provides a method for simulating buckling of subsea pipelines based on the pipeline element method, addressing the problems of low computational efficiency, complex modeling, and low accuracy in existing methods. Based on Euler-Bernoulli beam theory, this invention models the pipeline as a series of efficient pipeline elements. Internal pressure is converted into equivalent temperature rise, and the effective thermal expansion force generated by the effective temperature rise is applied to both ends of the pipeline element to construct the total potential energy equation. The second derivative of the total potential energy equation is performed to obtain the tangent stiffness matrix of the pipeline element. An updated Lagrange method is used for coordinate transformation. The secant relationship is used to calculate the pipeline element and soil resistance. A Newton-Raphson incremental-iterative numerical program is established to perform nonlinear analysis of the pipeline, progressively solving for the deformation and stress of the pipeline under complex loads. This invention significantly reduces the number of elements, improves computational efficiency, and accurately simulates nonlinear pipe-soil interactions. It is applicable to various pipelines, including short pipes, long pipes, and corroded pipes, as well as complex working conditions such as high temperature and high pressure.

The present application provides a kind of light weight liquid ammonia storage tank filling and discharging performance test platform, including light weight composite reinforced corrosion-resistant storage tank system, input or export gaseous ammonia to the storage tank to be tested by the ammonia supply and transportation system connected therewith;Light weight composite reinforced corrosion-resistant storage tank system is internally provided with multi-zone temperature monitoring system for real-time monitoring of temperature variation at different positions inside the storage tank;The light weight composite reinforced corrosion-resistant storage tank system is internally provided with internal gas circulation homogenization system for promoting gas flow inside the storage tank and improving temperature distribution;The control and safety protection system is used for real-time acquisition and regulation of storage tank internal pressure, liquid level, flow and temperature parameters, and safety pressure relief and protection under abnormal conditions;The present application can monitor and control the liquefaction process after ammonia is filled into the storage tank and the vaporization process when liquid ammonia is output, so as to test and analyze the temperature distribution, liquid level change, flow change and internal flow state during filling and discharging process.

The application discloses a kind of electronic detonator sealing test tubes under the condition of temperature and pressure coupling and sealing performance detection test method, its method includes the following steps: a certain amount of chemical reagent is loaded in empty tube shell, to ensure that the gas production after thermal decomposition reaches target pressure by internal pressure;Power positive line, negative line and signal line are welded on PCB board, then loaded into empty tube shell, injection plug card is blocked to empty tube shell, to obtain test tube;Power positive line and negative line are connected with power supply, and signal line and negative line are connected with signal amplifier and oscilloscope;Test tube is placed in high-low temperature chamber, heated to decomposition temperature, observe the internal pressure change of test tube, keep high temperature until target pressure is reached;Lower to preset low temperature, record pressure change curve and analyze.The application considers the influence of environmental temperature change on the sealing performance of electronic detonator, realizes real-time quantitative analysis of sealing performance, effectively improves the test efficiency of electronic detonator sealing performance detection.

This utility model discloses a tank-type stacked pressure-free variable frequency secondary water supply device, relating to the technical field of water supply equipment. It includes a flow stabilizing tank, a pump assembly, a pressure stabilizing tank, and a detection assembly. The flow stabilizing tank is connected to the equipment's inlet pipe. The pump assembly is connected to the outlet pipe of the flow stabilizing tank and includes multiple pump units, each independently frequency-controlled, pumping water to the outlet pipe. The pressure stabilizing tank is connected to the outlet pipe and used to balance water pressure fluctuations. The pressure stabilizing tank includes a shell and multiple air chambers, each with a different internal pressure. The detection assembly, located on the outlet pipe, includes a pressure sensor and a pressure switch. The pressure sensor detects water pressure changes on the outlet pipe, and the pressure switch controls the start and stop of the pump units. The technical solution provided by this utility model aims to solve the problem of insufficient capacity of traditional large-capacity single-chamber tanks to cope with high-frequency pressure fluctuations, ensuring a stable water supply.

The application discloses a kind of compressed air energy storage cavern operating pressure determination method, comprising the following steps: establishing the elastic mechanics plane strain model of surrounding rock-lining-sealing layer composite structure, deducing the analytical solution of elastic stress and displacement of composite structure;Determine the upper limit of cyclic internal pressure;Introduce the spatial heterogeneity function of surrounding rock parameter, deduce the elastoplastic stress and plastic zone radius expression of composite structure;Introduce the fatigue damage evolution equation to correct rock mass strength parameter, based on the plastic zone radius control condition, solve lower limit pressure.The method can simultaneously utilize initial geostress to constrain surrounding rock deformation and quantify the attenuation of rock mass parameters caused by long-term cyclic loading, while ensuring that surrounding rock does not produce tensile failure and the expansion of plastic zone is controllable, the best operating pressure range and amplitude of compressed air energy storage cavern in the whole life cycle of up to 30 years are accurately quantified, so as to ensure the long-term sealing and safety of the structure, effectively optimize the design parameters, and improve the engineering economy.

This invention relates to the field of automated production control technology for salt sculptures, specifically, to an intelligent control system and method for automated salt sculpture production. The system includes a raw material pretreatment module, a preform forming and initial state calibration module, a drying state spatiotemporal observation module, an adaptive predictive control module, and a demolding and quality closed-loop module. First, salt powder, adhesive, and water are mixed to generate a homogeneous mixture, which is then injected into a mold to form a salt sculpture preform. The surface temperature and humidity of the preform, as well as the overall moisture content, are collected. Based on extended Kalman filtering, the internal pressure and surface densification degree are estimated, generating a risk spatiotemporal distribution map. The risk distribution is converted into a potential field, and a spray path is planned along the negative gradient direction. Spraying is executed according to the risk index, and heating power is adjusted in zones to obtain a dried and mature salt sculpture. Finally, demolding detection is performed, and feedback parameters are generated for subsequent control. This invention achieves precise control of the salt sculpture drying process through closed-loop control of state observation and path planning.

The application discloses an experimental test and evaluation method for simulating breakage of a nuclear fuel rod and escape characteristics of fission products, which comprises consideration of similarity criteria, and ensures that the cylindrical geometry of the broken fuel rod can simulate the flow characteristics of the flow field near the break along the axial direction of the cylindrical surface; and the flow similarity in the experimental section is realized by Re>10 5 The flow field enters the self-modification area; the critical break diameter is determined based on the blocking flow theory; the specific experimental conditions are determined by single variable control processing of multiple factors; the release rate of fission products per unit time and the escape rate of fission products finally entering the coolant are divided into two experiments of fuel rod constant internal pressure and fuel rod sealing for measurement; and high-confidence uncertainty evaluation is carried out by using A and B two types of evaluation components; and the experimental results are used to fit the fission product escape rate coefficient model. The application solves the problems of poor reliability of experimental extrapolation, blind selection of working conditions and incomplete evaluation system, and provides high-precision benchmark data for nuclear safety analysis programs.

Embodiments of the present application disclose a high-temperature pressure-containing header creep residual life evaluation method and device. The method comprises: obtaining working condition data of a header to be evaluated and creep test data of a main steam pipeline in the same batch; fitting a creep curve of the main steam pipeline based on the creep test data, and establishing a parameter mapping of a theta parameter set and working condition variables; calculating an internal pressure reduced stress at a thinnest hole bridge position, and substituting the working condition data into the mapping to obtain a corresponding theta parameter, and then obtaining a creep curve equation under the working condition; calculating the creep residual life of the header to be evaluated according to the creep curve equation, the working condition data and the creep test data; and the device is composed of data acquisition, fitting and mapping, stress calculation, parameter migration and life evaluation units. Through curve migration and life evaluation of the same batch test data and working condition data, the consistency and traceability of the evaluation results are improved, and the stress correction for the weakest part further improves the result accuracy.

The application discloses a compressed air storage structure and a pressure balance method, and belongs to the technical field of compressed air energy storage. The application comprises a primary support layer arranged on the surface of surrounding rock; a plurality of inverted-arch prefabricated lining units made of an engineering cement-based composite material, the cross section of the inverted-arch prefabricated lining units being in an arc shape protruding towards the inside of the chamber; a closed internal pressure balance cavity is formed between the outer wall of each inverted-arch prefabricated lining unit and the inner wall of the primary support layer; a monitoring unit of the pressure balance system is used for monitoring the air pressure inside the chamber and / or the pressure in the internal pressure balance cavity; a fluid regulating unit is in communication with the internal pressure balance cavity and is used for injecting or discharging fluid medium into the internal pressure balance cavity; a control unit is in signal connection with the monitoring unit and the fluid regulating unit, and is used for controlling the fluid injected or discharged by the fluid regulating unit according to the monitored pressure data, so as to adjust the pressure in the internal pressure balance cavity. The application effectively avoids the problem of concrete lining cracking and failure, and realizes the balance of the internal and external pressures of the chamber.

The present invention relates to gas insulated power equipment filled with insulating gas as an insulating medium, and a method capable of safely operating gas insulated power equipment by controlling the internal pressure of the gas insulated power equipment. The gas insulated power equipment according to the present invention comprises: a housing in which a device for the power equipment is accommodated and insulating gas is sealed; and an extinguishing unit which is coupled to the housing, and which, in an abnormal state in which the internal pressure of the housing abnormally rises, adjusts a composition ratio of the insulating gas discharged from the housing before discharging insulating gas to the outside, and then discharges same to the outside.

To provide a technology that appropriately ruptures a case when the internal pressure reaches a predetermined pressure. [Solution] The energy storage device 1 disclosed herein comprises a first metal case 10, a second metal piece 60 made of a different metal from the first metal welded to the case 10, and an intermetallic compound between the first metal and the second metal at the weld between the case 10 and the metal piece 60. With this configuration, the case 10 can be appropriately fractured when the internal pressure of the case 10 reaches a predetermined pressure.

The utility model discloses a kind of solidifying agent, diluent negative pressure type outlet for 3KG metal drum, which is installed in the mouth of the metal drum;The negative pressure type outlet is divided into installation body and deformation body;The negative pressure type outlet is connected with the mouth of the metal drum through the installation body, and the deformation body is located at the end of the installation body at one end outside the metal drum;The deformation body is communicated with the internal space of the metal drum through the installation body, and drives reagent in the metal drum to discharge in the mode of negative pressure by extrusion deformation.The negative pressure type outlet of the utility model utilizes cross silica gel negative pressure leak-proof structure to pour solidifying agent and diluent to main agent in the mode of extrusion, when external pressure is greater than internal pressure after removing extrusion force, internal pressure solidifying agent and diluent will form the trend of backflow, avoid dripping phenomenon, meet the design requirement of safety and environmental protection.

The present invention relates to a positive displacement pump (100) for viscous materials, comprising at least one metering device (19) including a metering piston (3) movable in a sleeve (17), the at least one metering device (19) having a pre-compression stage occurring between a feeding stage and a conveying stage, the pre-compression stage being implemented by a stroke C of the metering piston (3) such that the internal pressure of the positive displacement pump (100) can be balanced to obtain the highest possible and most regular outlet flow rate.

The application is a kind of calculation method and device for envelope space of passenger car intercooler blow molding pipeline. It includes: 1. establishing network model of intercooler blow molding pipeline; 2. measuring actual stress and strain data of blow molding pipeline material; 3. fitting out blow molding pipe material constitutive equation parameters under different working temperatures, giving blow molding pipeline material constitutive equation parameters under corresponding working temperatures; 4. giving material constitutive equation parameters to blow molding pipeline; 5. determining one of external load input; 6. determining two of external load input; 7. solving the model, taking grid model of blow molding pipeline as deformation output point, and exporting three-dimensional space composed of deformation of blow molding pipeline surface node as envelope space of blow molding pipeline in vehicle movement process. The application combines actual working environment of intercooler blow molding pipeline, considers influence of internal pressure on pipeline deformation and displacement, and can more accurately calculate envelope space in vehicle driving process.

This utility model provides a prestressed composite pipe and pipe assembly. The prestressed composite pipe includes a concrete liner, a steel pipe, and an intermediate interlayer. The steel pipe is coaxially sleeved outside the concrete liner, with a pre-existing gap between the inner wall of the steel pipe and the outer wall of the concrete liner. The intermediate interlayer is sandwiched between the inner wall of the steel pipe and the outer wall of the concrete liner, and includes an inner wall that adheres to the outer wall of the concrete liner and an outer wall that adheres to the inner wall of the steel pipe. The inner wall of the intermediate interlayer presses against the outer wall of the concrete liner to create tangential prestress in the concrete liner, and the outer wall of the intermediate interlayer presses against the inner wall of the steel pipe to create tangential tensile prestress in the steel pipe. This prestressed composite pipe fully utilizes the respective performance advantages of concrete and steel, possessing strong resistance to internal pressure and good ring stiffness.

The invention belongs to the technical field of material stretching testing, and particularly relates to an axial stretching device for a workpiece with internal pressure and a testing method. The axial stretching device for the workpiece with the internal pressure comprises a test tool used for clamping the workpiece, wherein the test tool comprises a baffle guide rail; the first baffle is fixedly arranged on the baffle guide rail; the second baffle plate is movably arranged on the baffle plate guide rail, a workpiece to be tested is arranged between the first baffle plate and the second baffle plate, and the workpiece to be tested is connected with a pressure supply system; a tension sensor is arranged between the first baffle plate and the second baffle plate, and after the second baffle plate moves relative to the first baffle plate until the workpiece to be tested can be pre-tightened, the tension sensor is zeroed.

The application is suitable for the technical field of structural material mechanical property experiment, and provides a high-temperature internal pressure composite loading test device for a thin-walled shell structure, which comprises: an internal pressure loading assembly arranged on the inner side of a to-be-tested thin-walled shell structure and used for generating a normal loading force outward on the inner surface of the to-be-tested thin-walled shell structure; a high-temperature loading assembly arranged on the outer side of the to-be-tested thin-walled shell structure and used for heating the to-be-tested thin-walled shell structure; a support structure used for supporting; a sensor assembly comprising at least a first sensor used for collecting pressure experimental data of the internal pressure loading assembly and a second sensor used for collecting temperature experimental data of the high-temperature loading assembly; an analysis module used for processing each experimental data to obtain the material performance of the to-be-tested thin-walled shell structure; and a control module used for controlling the work of the test device, so that the high pressure and the high temperature are simultaneously loaded without interference, and the problems of complex and tedious experimental operation and high experimental cost are solved.

This application belongs to the field of compressed air energy storage technology, specifically disclosing a method and system for determining the internal pressure range of an underground lining chamber for compressed air energy storage. The method includes: obtaining the total stress distribution of the inner wall of the lining chamber's surrounding rock under the combined action of far-field vertical geostress and internal pressure; obtaining the functional relationship between the maximum and minimum principal stresses at the most critical point and the internal pressure, geostress, and lateral stress coefficients; performing coordinate transformation on the maximum and minimum principal stresses to simplify the Hoek-Brown criterion to a linear relationship on the scaled principal stress plane; and, for high and low internal pressure conditions, calculating the internal pressure at which the surrounding rock just enters a plastic state based on the functional relationship and the simplified Hoek-Brown criterion, as the upper and lower limits of the internal pressure. This application can accurately determine the internal pressure range of an underground lining chamber for compressed air energy storage, ensuring that the surrounding rock of the chamber maintains an elastic state during the inflation and deflation cycles, avoiding accumulated plastic damage, and thus extending the facility's lifespan.

This utility model discloses an impact-resistant structure for a natural gas pipeline, comprising: a base plate, a top plate, and a pipeline. The pipeline is fitted between the base plate and the top plate, and a telescopic rod is connected between the base plate and the top plate. An air bladder is installed inside the top plate, and an air inlet pipe is fixedly connected to the top of the air bladder. A telescopic pipe is fixedly connected to the top of the air inlet pipe. In use, both the base plate and the top plate are fitted over the pipeline. Pressing the air bladder allows outside air to enter, causing the internal pressure to rise and expand, filling and supporting the space between the top plate and the pipeline. The combination of the air bladder and the top plate provides cushioning and protection for the pipeline. Simultaneously, the base plate provides stable support for the pipeline. Rotating the nut allows the screw to move up and down within the nut's thread, and simultaneously allows the screw to slide up and down within the sleeve, ultimately achieving height adjustment of the entire base plate and improving the overall adaptability of the device.

The application relates to a full-automatic post-irradiation nuclear fuel cladding internal pressure mechanical test device, which comprises a hot chamber, and the hot chamber is internally provided with a furnace body, a cutting module for cutting a cladding tube sample with a set length, an assembly module for inserting a core rod into the cladding tube sample and locking two sealing fittings to two ends of the cladding tube sample to form a sealed sample, a sample mounting and dismounting module for mounting the sealed sample into the furnace body for testing or dismounting and recycling the sealed sample in the furnace body, and a mechanical hand for grabbing, transferring and operating the cladding tube sample, the sealing fittings and the sealed sample. The test device can realize the operations of preparing the cladding tube sample with a set length, transferring, high-temperature and high-pressure sealing assembly and docking assembly with the test furnace body before testing, and automatically dismounting the sample after testing, so that the technical limitations and problems of the current mainstream device, such as scattered operation process, excessive manual intervention, low test efficiency, high operation threshold of test personnel and high risk of human error operation, are overcome.

This utility model relates to the field of fire extinguishing device technology, specifically a structure of a powerful fire extinguishing device based on nitrogen gas propulsion. It includes a bottle body, a nozzle fixedly connected to the surface of the bottle body, and a pressure gauge fixedly installed on the surface of the nozzle. A protective mechanism is provided at the bottom of the bottle body, including a base fitted onto the surface of the bottle body, with a suction cup fixedly connected to the bottom end of the base. This utility model utilizes the suction cup to achieve adhesion to the ground, thus ensuring the stability of the bottle body and preventing it from tipping over due to collisions. This helps maintain the stability of the bottle body and the balance of internal pressure, facilitating the safety of the fire extinguishing device. Simultaneously, the elasticity of the first spring, combined with the damping element and rubber pad, can mitigate vibrations and impacts from collisions, reducing the impact on the bottle body and preventing deformation, further protecting the fire extinguishing device.

This invention relates to a method for monitoring the lifespan of metal pipes in combined heat and power (CHP) units. The purpose of this invention is to address the inaccuracy of existing online monitoring methods based on limited measuring points. Each pipe is divided into multiple sections. Boiler operating parameters and the internal pressure of each section are collected. Based on the operating parameters, the outlet steam temperature and midpoint wall temperature of each section are obtained. The outer surface wall temperature is obtained based on the outlet steam temperature and midpoint wall temperature. The inner wall temperature of each section is obtained based on the midpoint wall temperature and outer surface wall temperature. The fatigue life loss rate of each section is obtained based on the outer surface wall temperature, inner wall temperature, and internal pressure. The creep life loss rate is obtained based on the outer surface wall temperature. The sum of the fatigue life loss rate and creep life loss rate is taken as the total loss rate of each section, thereby achieving the monitoring of pipe lifespan. This invention is used for monitoring pipe lifespan.

This invention relates to the field of oil and gas wellbore integrity evaluation technology, and particularly to a method for determining the internal pressure resistance of casing under complex fracturing conditions. The method includes: determining the service boundary conditions of the target well casing under fracturing conditions; setting different experimental temperatures, internal pressure values, and cycle numbers; conducting alternating temperature and internal pressure load tests on a model casing using experimental equipment based on the experimental temperatures, internal pressure values, and cycle numbers; establishing a regression model of the internal pressure resistance as a function of temperature, pressure, and cycle numbers based on the set different experimental temperatures, internal pressure values, cycle numbers, and corresponding experimental results; and determining the internal pressure resistance of the target well casing based on the service boundary conditions of the target well casing and the regression model. This invention establishes a regression model of the casing's internal pressure resistance as a function of temperature, pressure, and cycle numbers, which can determine the accurate internal pressure resistance of the casing under different fracturing conditions, providing technical support for calculating the internal pressure resistance of casing under different fracturing conditions.

This invention relates to the field of gas blasting technology, providing a gas fracturing tube that does not require encapsulation and its operating method. The tube includes a gas fracturing tube body, an inlet pipe, and an outlet pipe. The top of the fracturing tube body has an inlet and an outlet; the inlet is connected to the inlet pipe, and the outlet is connected to the outlet pipe. The inlet has a built-in one-way valve for blasting gas, which only allows blasting gas to flow in. A sealing diaphragm is integrated at the outlet; when the outlet pipe is withdrawn, the sealing diaphragm locks under the action of a return spring, and the internal pressure difference causes the sealing diaphragm to tightly adhere to the outlet, achieving zero-leakage tube extraction. This method achieves unencapsulated filling, prevents leakage, improves construction efficiency, and enhances safety.

The present disclosure relates generally to methods and apparatus for separating effluent in an acetic acid production unit. Accordingly, one aspect of the present disclosure provides a method comprising introducing a feed stream comprising acetic acid and water into a distillation column through a feed inlet, separating the feed stream to form a first fraction enriched in water and a second fraction enriched in acetic acid, measuring an internal temperature and an internal pressure of the column at a location between a first outlet and a second outlet of the column, determining a corrected temperature of the column based on the measured internal pressure and internal temperature of the column, adjusting a heating rate of a heat source in thermal communication with a bottom section of the column if the corrected temperature is different from a target value, and then withdrawing at least a portion of the separated second fraction enriched in acetic acid, the fraction comprising 500-1,500 parts per million by weight (ppmw) of water.

The application discloses a steam generating system and an electric appliance using steam, comprising a water pump, the water pump comprising a volume cavity, an inlet pipe connected to the volume cavity, an outlet pipe connected to the volume cavity, a steam generator connected to the outlet pipe through a first external water pipe, and a second external water pipe sleeved on the periphery of the inlet pipe, the steam generating system comprising a clamp, the clamp clamping at least one of the part of the first external water pipe sleeved on the outlet pipe and the part of the second external water pipe sleeved on the inlet pipe, and the first external water pipe being separated from the outlet pipe and / or the second external water pipe being separated from the inlet pipe when the pressure in the volume cavity is greater than a set pressure. The water pump can separate the first external water pipe from the outlet pipe and / or the second external water pipe from the inlet pipe, so that the original pressure relief valve scheme is replaced in the case of abnormal internal pressure of the water pump, and the water pump is miniaturized.

Disclosed is a method for estimating the variation in the volume ΔV of an inflatable system resulting from an external force applied to a stationary inflatable system, the method comprising the steps of: applying an external force F to a deformable surface of the inflatable system; recording the internal temperature T in the fluid cavity of the equipped inflatable system at an acquisition frequency F1; recording the internal pressure P in the fluid cavity of the equipped inflatable system at a frequency F2; and evaluating the variation in the volume ΔV of the equipped inflatable system using the recorded internal temperature T and recorded internal pressure P, using a fluid model in an adiabatic change in which the fluid exhibits perfect gaseous behavior.

The utility model relates to lighter technical field discloses a lighter with the function of adding blasting bead liquid, including lighter main part, the lighter main part top fixedly connected with the windproof cover, the windproof cover inside is provided with the combustion chamber, the lighter main part inside is installed with the fuel pipe, the lighter main part surface is pasted with the containing storehouse, the windproof cover bottom fixedly connected with the fixed part, the fixed part inner wall fixedly connected with the transfusion pipe, the transfusion pipe bottom fixedly connected with the connecting hose, the containing storehouse surface is provided with the positioning mechanism. In the utility model, the function of adding blasting bead liquid is controlled by the pressing pump, the connecting hose and the transfusion pipe, when the pressing pump is pressed down, the internal pressure increases due to the reduction of the internal volume of the containing storehouse, the pressure difference drives the blasting bead liquid to be sent into the connecting hose through the liquid outlet interface, so that the blasting bead liquid can be delivered to the combustion chamber, and the effect of quickly adding the blasting bead liquid when lighting is realized.