Movable combustible gas configuration, explosion and pressure acquisition system with plastic film

Abstract

The utility model provides a movable combustible gas configuration, explosion and pressure acquisition system with a plastic film. The device comprises a liftable space support frame 1, a flame-retardant film 2, a portable ternary gas distribution device 3, a movable high-pressure ignition device 4, a high-speed dynamic transient pressure acquisition system 5, a gas inlet pipe 6 and a gas outlet pipe 7. Wherein the portable ternary gas distribution device 3, the movable high-pressure ignition device 4 and the high-speed dynamic transient pressure acquisition system 5 are respectively connected with a to-be-tested electrical equipment sample 8 placed in the liftable space support frame 1. A traditional anti-explosion tank structure is replaced by a variable flame-retardant frame structure formed by combining the liftable space supporting frame and the flame-retardant film, and the whole device is portable and movable. The system fills the blank of the field detection test of the explosion-proof performance of the large-scale explosion-proof electrical equipment in China, and further strengthens the field examination means of the explosion-proof safety performance of the large-scale explosion-proof electrical equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof test devices, in particular to a combustible gas configuration, detonation and pressure collection system with a movable plastic film. Background Art

[0002] Flameproof type is the most widely used explosion-proof form in explosive environments among explosion-proof electrical equipment. With the increasing emphasis on production safety in my country in recent years, the supervision of electrical equipment used in explosive environments has also been strengthened, and the demand for explosion-proof electrical equipment in enterprises with explosive gas environments and explosive dust environments has also increased. At the same time, as explosion-proof electrical products are included in the CCC mandatory certification catalog, the inspection and testing of explosion-proof electrical products has become increasingly important.

[0003] At present, my country's flameproof test method for flameproof electrical equipment is mainly to place the electrical equipment in a large explosion-proof tank and implement the entire test process through a professional gas distribution control system and a high-voltage ignition system.

[0004] For example, the invention patent with publication number CN114935641A provides a test device and method for gas explosion pressure in a flameproof chamber. The test device includes a rectangular flameproof enclosure, and a gas distribution system, an ignition system, a control system and a data acquisition system arranged in cooperation with the flameproof enclosure; the data acquisition system includes a pressure sensor installed in cooperation with the flameproof enclosure, and a transient signal test system connected to the pressure sensor, and the transient signal test system is connected to the control system.

[0005] However, the test device is limited by the size of the explosion-proof tank shell. As the volume of explosion-proof electrical equipment samples increases, an explosion-proof tank body that can accommodate its size must be equipped, and large explosion-proof electrical equipment is inconvenient to transport.

[0006] In view of this, it is necessary to design an improved combustible gas configuration, ignition and pressure collection system with a movable plastic film to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a combustible gas configuration, ignition and pressure collection system with a movable plastic film.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides a combustible gas configuration, ignition, and pressure collection system with a movable plastic film, which includes a portable three-element gas distribution device, a liftable space support frame, a flame retardant film, a movable high-voltage ignition device, and a high-speed dynamic transient pressure collection system;

[0009] The flame retardant film is fitted on the outside of the liftable space support frame to block and seal the internal environment of the liftable space support frame;

[0010] The portable three-element gas distribution device, the movable high-voltage ignition device, and the high-speed dynamic transient pressure acquisition system are respectively connected to the electrical equipment sample to be tested placed inside the liftable space support frame.

[0011] As a further improvement of the present invention, the liftable space support frame is a regular three-dimensional structure and is provided with a deformation part; the spatial structure change of the liftable space support frame is achieved through the horizontal extension or vertical lifting of the deformation part.

[0012] As a further improvement of the present invention, the deformation portion includes a vertical lifting portion for adjusting the vertical distance between the electrical equipment sample to be tested and the flame retardant film.

[0013] As a further improvement of the utility model, the deformation portion further includes a horizontal expansion portion for adjusting the horizontal distance between the electrical equipment sample to be tested and the flame retardant film.

[0014] As a further improvement of the utility model, one end of the portable three-way gas distribution device is connected to the electrical equipment sample to be tested through an air intake pipe; the air intake pipe is inserted through the sealing hole on the flame retardant film.

[0015] As a further improvement of the present invention, the other end of the portable three-way gas distribution device is respectively connected to pipelines of a methane gas source, a hydrogen gas source and an air gas source.

[0016] As a further improvement of the present invention, the flame retardant film is a transparent film, and the thickness of the flame retardant film is 1.0 mm.

[0017] As a further improvement of the utility model, the combustible gas configuration, ignition and pressure collection system with a movable plastic film also includes a gas outlet pipe connected to the electrical equipment sample to be tested.

[0018] As a further improvement of the present invention, the high-speed dynamic transient pressure acquisition system is electrically connected to the electrical equipment sample to be tested.

[0019] As a further improvement of the present invention, a dynamic pressure sensor is provided on the high-speed dynamic transient pressure acquisition system.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model provides a removable combustible gas configuration, detonation, and pressure collection system with a plastic film. The hardware cost of the test system is low, and it can bring profits to enterprises in the short term after being put on the market. In addition, it shortens the product certification cycle, reduces R&D and inspection costs, and provides reliable on-site technical support for government regulatory departments. At the same time, the removable test system fills the gap in the on-site detection and testing of the explosion-proof performance of large-scale flameproof electrical equipment in China, and further strengthens the on-site assessment of the explosion-proof safety performance of large-scale flameproof electrical equipment.

[0022] 2. The flammable gas configuration, detonation, and pressure collection system with a movable plastic film provided by the utility model replaces the traditional explosion-proof tank structure with a variable flame-retardant frame structure composed of a liftable space support frame and a flame-retardant film, and the entire device is portable and movable, overcoming the technical defects of the prior art that is limited by the size of the explosion-proof tank body, and as the volume of explosion-proof electrical equipment increases, it must be equipped with an explosion-proof tank body that can accommodate its size, and large explosion-proof electrical equipment is inconvenient to transport. Furthermore, by setting a transparent flame-retardant film structure, the test personnel can see the instantaneous changes inside the system through the transparent flame-retardant film, thereby more intuitively judging the explosion-proof performance of the electrical equipment sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model provides a structural schematic diagram of a combustible gas configuration, detonation and pressure collection system with a movable plastic film.

[0024] Figure 2 This is a structural schematic diagram of the liftable space support frame provided by the utility model.

[0025] Reference numerals

[0026] 1-liftable space support frame; 11-vertical lifting part; 12-horizontal telescopic part; 2-flame retardant film; 21-sealing hole; 3-portable three-way gas distribution device; 31-methane gas source; 32-hydrogen gas source; 33-air gas source; 4-movable high-voltage ignition device; 5-high-speed dynamic transient pressure acquisition system; 6-inlet pipe; 7-outlet pipe; 8-electrical equipment sample to be tested. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0029] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0030] See also Figure 1 As shown, the utility model provides a combustible gas configuration, ignition and pressure collection system with a movable plastic film, which includes a liftable space support frame 1, a flame retardant film 2, a portable three-element gas distribution device 3, a movable high-voltage ignition device 4, a high-speed dynamic transient pressure collection system 5, and an air inlet pipe 6 and an air outlet pipe 7. The portable three-element gas distribution device 3, the movable high-voltage ignition device 4, and the high-speed dynamic transient pressure collection system 5 are respectively connected to the electrical equipment sample 8 to be tested placed inside the liftable space support frame 1.

[0031] The traditional explosion-proof tank structure is replaced by a variable flame-retardant frame structure composed of a liftable space support frame 1 and a flame-retardant film 2, and the entire device is portable and movable. The flame-retardant film 2 is fitted on the outside of the liftable space support frame 1 to block and seal the internal environment of the liftable space support frame.

[0032] In some specific embodiments, the flame retardant film 2 is a transparent film, and the thickness of the flame retardant film 2 is 1.0 mm. With this arrangement, the flameproof test personnel can clearly see the situation inside the test system.

[0033] See also Figure 2 As shown, the liftable space support frame 1 is a regular three-dimensional frame structure, provided with a deformation part; the space structure of the liftable space support frame can be changed by horizontal extension or vertical lifting of the deformation part. It can support the flame retardant film 2 on the outside, and can also place the electrical equipment sample 8 to be tested inside.

[0034] In some specific embodiments, the deformation portion includes a vertical lifting portion 21 for adjusting the vertical distance between the electrical device sample to be tested and the flame retardant film.

[0035] In some specific embodiments, the deformation portion further includes a horizontal expansion portion 22 for adjusting the horizontal distance between the electrical device sample to be tested and the flame retardant film.

[0036] Specifically, the horizontal telescopic portion 22 includes telescopic components in two directions, the X direction and the Z direction.

[0037] The vertical lifting part 21 and the horizontal telescopic part 22 are lifted and / or telescoped synchronously or asynchronously to adjust the spatial structure of the liftable space support frame 1 so as to better place the electrical equipment sample 8 to be tested. Moreover, through the horizontal telescopic or vertical lifting adjustment of the deformation part, the system can adapt to the explosion-proof test of electrical equipment samples 8 to be tested of different sizes, and has a wide range of applications.

[0038] In some other embodiments, the liftable space support frame 1 may also be provided with bottom sliding wheels (not shown in the figure) to achieve portable movement and transportation of the liftable space support frame 1.

[0039] See also Figure 1 As shown, one end of the portable three-way gas distribution device 3 is connected to the electrical equipment sample 8 to be tested through an air intake pipe 7; the air intake pipe 7 is inserted into the sealing hole 21 on the flame retardant film 2.

[0040] The other end of the portable three-component gas distribution device 3 is respectively connected to the methane gas source 31, the hydrogen gas source 32 and the air gas source 33. The portable three-component gas distribution device 3 is used to configure the gases of different concentrations required for the test, and can simultaneously take in three pure gases (methane, hydrogen, and air), thereby configuring combustible gases of different ratio concentrations.

[0041] See also Figure 1 As shown, the high-speed dynamic transient pressure acquisition system 5 is electrically connected to the electrical equipment sample to be tested 8. A pressure sensor is provided on the high-speed dynamic transient pressure acquisition system 5. The high-speed dynamic transient pressure acquisition system 5 is used to acquire the pressure curve generated by the explosion.

[0042] The utility model provides a combustible gas configuration, detonation and pressure collection system with a movable plastic film, and its working principle is:

[0043] First, place the electrical equipment sample 8 to be tested inside the liftable three-dimensional space support frame 1;

[0044] Before starting the gas distribution, the vertical lifting part 11 is adjusted to lower the liftable three-dimensional space support frame 1 to the lowest position from the electrical equipment sample 8 to be tested, and the horizontal telescopic part 12 is adjusted to adjust the liftable three-dimensional space support frame 1 to the position closest to the electrical equipment sample 8 to be tested, so that the flame retardant film 2 is as close to the electrical equipment sample 8 to be tested as possible, and the air in the internal environment of the flame retardant film 2 is exhausted as much as possible;

[0045] According to the test needs, gas distribution is carried out, and then, as the portable three-dimensional gas distribution device 3 continuously takes in air through the air intake pipe 6, the liftable three-dimensional space support frame 1 is vertically raised or horizontally extended to a suitable position, so that there is a certain spatial distance between the liftable three-dimensional space support frame 1 and the electrical equipment sample 8 to be tested inside.

[0046] After the gas distribution is completed, the ignition test is carried out using the movable high-pressure ignition device 4, and at the same time, the pressure curve generated by the explosion is collected using the high-speed dynamic transient pressure acquisition system 5.

[0047] At the same time, the test personnel can also see the instantaneous changes inside the system through the transparent barrier film 2. If an explosion occurs inside the system during the test, it indicates that the explosion-proof performance of the electrical equipment sample 8 to be tested is unqualified. Conversely, if no explosion occurs inside the system during the test, it indicates that the explosion-proof performance of the electrical equipment sample 8 to be tested is unqualified.

[0048] In summary, the utility model provides a combustible gas configuration, ignition, and pressure collection system with a movable plastic film. It includes a liftable space support frame 1, a flame-retardant film 2, a portable three-way gas distribution device 3, a movable high-voltage ignition device 4, a high-speed dynamic transient pressure collection system 5, an air inlet pipe 6, and an air outlet pipe 7. Among them, the portable three-way gas distribution device 3, the movable high-voltage ignition device 4, and the high-speed dynamic transient pressure collection system 5 are respectively connected to the electrical equipment sample 8 to be tested placed inside the liftable space support frame 1. The traditional explosion-proof tank structure is replaced with a variable form flame-retardant frame structure composed of a liftable space support frame and a flame-retardant film, and the entire device is portable and movable, which overcomes the technical defects of the prior art being limited by the size of the explosion-proof tank body. As the volume of the explosion-proof electrical equipment increases, it must be equipped with an explosion-proof tank body that can accommodate its size, and large explosion-proof electrical equipment is inconvenient to transport. Furthermore, by providing a transparent flame-retardant film structure, test personnel can see the instantaneous changes inside the system through the transparent flame-retardant film, thereby more intuitively judging the explosion-proof performance of the electrical equipment sample.

[0049] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A combustible gas configuration, detonation and pressure collection system with a movable plastic film, characterized in that: It includes a portable three-element gas distribution device, a liftable space support frame, a flame retardant film, a movable high-voltage ignition device, and a high-speed dynamic transient pressure acquisition system; The flame retardant film is fitted on the outside of the liftable space support frame to block and seal the internal environment of the liftable space support frame; The portable three-element gas distribution device, the movable high-voltage ignition device, and the high-speed dynamic transient pressure acquisition system are respectively connected to the electrical equipment sample to be tested placed inside the liftable space support frame.

2. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 1 is characterized in that: The liftable space support frame is a regular three-dimensional structure and is provided with a deformation part; the spatial structure of the liftable space support frame is changed by horizontal extension or vertical lifting of the deformation part.

3. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 2 is characterized in that: The deformation part includes a vertical lifting part for adjusting the vertical distance between the electrical equipment sample to be tested and the flame retardant film.

4. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 2 is characterized in that: The deformation portion further comprises a horizontal expansion portion for adjusting the horizontal distance between the electrical equipment sample to be tested and the flame retardant film.

5. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 1 is characterized in that: One end of the portable three-way gas distribution device is connected to the electrical equipment sample to be tested through an air intake pipe; the air intake pipe is inserted through the sealing hole on the flame retardant film.

6. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 1 is characterized in that: The other end of the portable three-way gas distribution device is respectively connected to pipelines of a methane gas source, a hydrogen gas source and an air gas source.

7. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 1 is characterized in that: The flame retardant film is a transparent film, and the thickness of the flame retardant film is 1.0 mm.

8. The combustible gas configuration, detonation, and pressure collection system with a movable plastic film according to claim 1 is characterized in that: The combustible gas configuration, ignition and pressure collection system with a movable plastic film also includes a gas outlet pipe connected to the electrical equipment sample to be tested.

9. The combustible gas configuration, detonation, and pressure collection system with a movable plastic film according to claim 1 is characterized in that: The high-speed dynamic transient pressure acquisition system is electrically connected to the electrical equipment sample to be tested.

10. The combustible gas configuration, detonation and pressure collection system with a movable plastic film according to claim 1 is characterized in that: The high-speed dynamic transient pressure acquisition system is provided with a dynamic pressure sensor.

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