CN112229724B - Detection method for alarm sensitivity of burst early warning detection device - Google Patents
Detection method for alarm sensitivity of burst early warning detection device Download PDFInfo
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- CN112229724B CN112229724B CN202011210262.2A CN202011210262A CN112229724B CN 112229724 B CN112229724 B CN 112229724B CN 202011210262 A CN202011210262 A CN 202011210262A CN 112229724 B CN112229724 B CN 112229724B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
A detection method of alarm sensitivity of burst early warning detection device. The device comprises a bearing member which is designed and manufactured to generate strain in a certain direction; the surface of the bearing member is additionally provided with a burst early warning detection device; applying tension to the bearing member along the laying direction of the on-off type detection line to enable the bearing member to generate strain, gradually increasing the tension to enable the strain to be increased until the on-off type detection line breaks, and then sending an alarm signal by the monitoring box to record the strain value of the strain sensor at the moment. The detection method of the burst early warning detection device alarm sensitivity has the following beneficial effects: the strain value of the bearing member when the on-off type detection line breaks is measured through the strain sensor, so that the capacity of the on-off type detection line and the whole coating to follow the strain change of the bearing member is determined, and the alarm sensitivity of the burst early warning detection device can be objectively and truly reflected.
Description
Technical Field
The invention belongs to the technical field of safety detection, and particularly relates to a detection method of alarm sensitivity of a burst early-warning detection device.
Background
A method for detecting the explosion-proof alarm function of a fire-fighting pressure gas cylinder is disclosed in chinese patent application No. 200910245130.0, and according to the disclosed method, a related technician can design a method for detecting the alarm sensitivity of an explosion-proof early-warning detection device. FIG. 1 is a schematic diagram of a prior art device for detecting the alarm sensitivity of a burst early warning detector. As shown in fig. 1, a test piece adopted by the method is a fire-fighting gas cylinder section with a bursting early-warning detection device and a length of 1.5D, wherein D is the diameter of the fire-fighting gas cylinder, the bursting early-warning detection device comprises an on-off detection line 1 arranged on the outer wall surface of the test piece and a monitoring box 2 connected with two ends of the on-off detection line 1 and used for detecting the on-off state of the on-off detection line 1, a rectangular crack 3 penetrating axially and having a certain depth is manually carved on the inner wall surface of the fire-fighting gas cylinder section, and two ends of the fire-fighting gas cylinder section are respectively sealed by a blocking plate and provided with a water inlet 4. Under the premise of ensuring that the bursting pressure of the test piece is lower than the normal working pressure range of the fire-fighting gas cylinder, the pressurizing equipment is utilized to charge air or water into the sealed test piece through the water inlet 4 according to a certain punching rate, the monitoring box 2 alarms when the on-off type detection line 1 breaks, the alarm time or pressure is recorded, the pressure is continuously increased until the test piece bursts, and the bursting time or pressure is recorded. And the alarm sensitivity of the burst early-warning detection device added on the test piece can be determined according to the time difference or the pressure difference between the burst of the test piece and the alarm of the monitoring box 2.
However, this test method has the following problems: 1) The crack 3 is formed manually, and the actual size of the crack is different from that of a natural crack, so that the strain of the wall surface of the test piece is different from that of the wall surface of the gas cylinder in actual conditions during the test; 2) Because of the technical shortcomings of the manually carved cracks, the sizes of the cracks 3 in each test cannot be completely consistent, and the strain of the wall surface of the test piece is different in each test. Therefore, the method for detecting the alarm sensitivity of the burst early-warning detection device is different from the actual situation, and the alarm sensitivity of the burst early-warning detection device cannot be completely and truly reflected.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a detection method for the alarm sensitivity of a burst early-warning detection device.
In order to achieve the above purpose, the method for detecting the alarm sensitivity of the burst early warning detection device provided by the invention comprises the following steps in sequence:
1) Designing and manufacturing a bearing member capable of generating strain in a certain direction;
2) The method comprises the steps that a bursting early warning detection device is additionally arranged on the surface of a bearing member, and the bursting early warning detection device comprises an on-off type detection wire laid on the outer surface of the bearing member along the direction of generating strain, a monitoring box connected with two ends of the on-off type detection wire and used for detecting the on-off state of the on-off type detection wire, a coating layer which is used for pasting and fixing the on-off type detection wire and insulating the on-off type detection wire and the surface of the bearing member, and a strain sensor which is arranged in parallel with the on-off type detection wire;
3) And applying a tensile force F to the bearing member along the laying direction of the on-off type detection line to enable the bearing member to generate strain epsilon, gradually increasing the tensile force F to enable the strain epsilon to be increased until the on-off type detection line breaks, and then sending an alarm signal by the monitoring box to record the strain value of the strain sensor at the moment.
The bearing member is a metal sheet with the thickness of 5mm, the width of 10mm and the length of 50 mm-150 mm.
The bearing component adopts a cylindrical metal rod with the diameter of 10 mm-50 mm.
The bearing component adopts a cylindrical gas cylinder or a pressure container with the length of the cylindrical section being more than or equal to 1.5 times of the diameter of the cylindrical section.
The coating is coated on the bearing member by adopting the processes of spraying, coating and brushing, the thickness is 0.1-2 mm, the width is 5-20 mm, the length is 30-50 mm, and the epoxy resin is selected.
When the tensile force F is applied to the bearing component, the two ends of the on-off type detection wire are in a free state without external force.
When the monitoring box alarms, the strain value of the strain sensor is less than or equal to 2%.
The bearing member adopts any one of alloy steel and carbon steel.
The detection method of the burst early warning detection device alarm sensitivity has the following beneficial effects: the strain value of the bearing member when the on-off type detection line breaks is measured through the strain sensor, so that the capacity of the on-off type detection line and the whole coating to follow the strain change of the bearing member is determined, and the alarm sensitivity of the burst early warning detection device can be objectively and truly reflected.
Drawings
FIG. 1 is a schematic diagram of the structure of a device used in the method for detecting the alarm sensitivity of a burst early warning detector in the prior art.
Fig. 2 is a schematic diagram of a detection process of the detection method of the alarm sensitivity of the burst early warning detection device provided by the invention when the bearing member adopts a metal sheet.
Fig. 3 (a) and (b) are schematic diagrams of two parallel arrangements of a strain sensor and an on-off type detection line in the present invention, respectively.
Fig. 4 is a schematic diagram of another parallel arrangement structure of a strain sensor and an on-off type detection line in the present invention.
FIG. 5 (a) is a schematic diagram showing the arrangement of strain sensors and on-off type detection wires on two sides of a force bearing member in parallel; fig. 5 (b) is a sectional view taken along the direction a-a in fig. 5 (a).
Fig. 6 is a schematic diagram of an overlapping arrangement structure of a strain sensor and an on-off type detection line in the present invention.
FIG. 7 (a) is a schematic illustration of the structure of the present invention wherein the coating is applied to the load bearing member using a one-step fixing process; fig. 7 (b) is a schematic view of a structure in which the coating of the present invention is applied to a load bearing member using a two-step fixing method.
Fig. 8 is a schematic diagram of a detection process of the detection method of the alarm sensitivity of the burst early warning detection device provided by the invention when the bearing member adopts a cylindrical metal rod.
FIG. 9 is a schematic diagram of the detection process of the detection method of the alarm sensitivity of the burst early warning detection device provided by the invention when the bearing member adopts a cylindrical gas cylinder or a pressure container with the diameter of 1.5 times or more of the cylindrical section.
Detailed Description
The method for detecting the alarm sensitivity of the burst early-warning detection device provided by the invention is described in detail below with reference to the accompanying drawings and specific embodiments. The same reference numerals are used for the same components as in the prior art.
Example 1
The detection method for the alarm sensitivity of the burst early-warning detection device provided by the embodiment comprises the following steps in sequence:
1) As shown in fig. 2, a metal sheet having a thickness of about 5mm, a width of about 10mm, and a length of about 50mm to 150mm and capable of generating a certain strain in the longitudinal direction is designed and manufactured as the load-carrying member 6;
2) The method comprises the steps that a bursting early warning detection device is additionally arranged on the side surface of a bearing member 6, and comprises an on-off type detection wire 1 laid on the side surface of the bearing member 6 along the length of the bearing member 6, a monitoring box 2 connected with two ends of the on-off type detection wire 1 and used for detecting the on-off state of the on-off type detection wire 1, a coating 5 which is used for adhering and fixing the on-off type detection wire 1 and insulating the on-off type detection wire 1 and the outer surface of the bearing member 6, and a strain sensor 7 which is arranged in parallel with the on-off type detection wire 1;
3) The two short sides of the bearing member 6 are clamped by the clamp on the tensile testing machine, the tensile testing machine is started to carry out tensile test, the tensile force F is applied to the bearing member 6, the bearing member 6 generates stress and strain epsilon, the stress can be transmitted to the on-off type detection wire 1 through the coating 5, the on-off type detection wire 1 also generates certain strain, the tensile force F is gradually increased, the strain epsilon is increased until the on-off type detection wire 1 is broken, the monitoring box 2 sends out an alarm signal, and the strain value of the strain sensor 7 at the moment is recorded. This strain value may be approximately equal to the strain value at which the strain sensor 7 is mounted on the load bearing member 6 when the on-off type detection wire 1 breaks. The smaller the strain value is, the stronger the capacity of the on-off type detection wire 1 and the coating 5 in the burst early warning detection device to integrally follow the strain change of the bearing member 6 is, the better the integral strain following performance of the on-off type detection wire 1 and the coating 5 is, and the burst early warning detection device has high warning sensitivity.
The bearing member 6 is made of any one of alloy steel and carbon steel.
The parallel arrangement refers to that the laying directions of the strain sensor 7 and the on-off type detection line 1 are consistent, and the following are several examples of parallel arrangement, but are not limited to the following examples:
(1) as shown in fig. 3, the strain sensor 7 and the on-off type detection line 1 are laid in parallel at a certain interval in a consistent direction, and the central positions of the two can be overlapped after being shifted, as shown in fig. 3 (a), or not overlapped, as shown in fig. 3 (b);
(2) as shown in fig. 4, the strain sensor 7 and the on-off type detection line 1 are arranged at a certain interval in a consistent laying direction, and the axes of the strain sensor 7 and the on-off type detection line 1 are positioned on the same straight line;
(3) as shown in fig. 5, the strain sensor 7 and the on-off type detection wire 1 are laid in the same direction and on different sides of the load bearing member 6.
The strain sensor 7 and the on-off type detection wire 1 are arranged in parallel, so that the strain value of the strain sensor 7 is approximately equal to the strain value of the position where the strain sensor 7 is arranged on the bearing member 6 when the on-off type detection wire 1 breaks, and therefore the smaller the distance between the strain sensor 7 and the on-off type detection wire 1 is, the better the smaller the distance is, and the strain sensor 7 can be laid on the outer side of the on-off type detection wire 1 and overlapped with the on-off type detection wire 1 under the condition that the strain transmission is not affected, as shown in fig. 6.
The coating 5 is coated on the bearing member 6 by adopting the processes of spraying, coating and brushing, the thickness of the coating is preferably 0.1-2 mm, the width of the coating is preferably 5-20 mm, the length of the coating is preferably 30-50 mm, and the coating is too short to be adhered and fixed by the on-off type detection wire 1. The coating 5 is made of epoxy resin which can fix the on-off type detection wire 1 and insulate the on-off type detection wire 1 from the bearing member 6.
The coating 5 can be coated on the bearing member 6 by adopting a one-step or two-step fixing method, wherein the one-step fixing method is to fix the on-off type detection wire 1 on the bearing member 6 by pasting only one layer of coating 5, as shown in fig. 7 (a); the two-step fixing method refers to that two layers of coating are required to be coated on the force bearing member 6 for pasting and fixing the on-off type detection wire 1, wherein the inner coating 5a is used for pasting and fixing the on-off type detection wire 1 on the force bearing member 6, the outer coating 5b is used for reinforcing the on-off type detection wire 1, the inner coating 5a and the outer coating 5b can be made of the same material, and different materials can also be adopted, as shown in fig. 7 (b).
The on-off type detection wire 1 is stuck and fixed on the bearing member 6 through the coating 5, when the coating 5 is solidified and the tensile force F is applied to the bearing member 6, the two ends of the on-off type detection wire 1 are in a free state which is not subjected to external force, the two ends of the on-off type detection wire 1 cannot be fixed in a welding spot, a patch or the like mode, otherwise, the on-off type detection wire 1 is broken under the influence of the tensile force of the two ends when the bearing member 6 is pulled.
The measuring range of the strain sensor 7 is 0.1-3%.
The strain value of the strain sensor 7 is less than or equal to 2% when the monitoring box 2 alarms, and the sensitivity of the burst early warning detection device is qualified.
Example two
The detection method for the alarm sensitivity of the burst early-warning detection device provided by the embodiment comprises the following steps in sequence:
1) As shown in fig. 8, a cylindrical metal rod with the diameter of 10 mm-50 mm and capable of generating certain strain along the axial direction is designed and manufactured to be used as a bearing member 6;
2) The method comprises the steps that a burst early warning detection device is additionally arranged on the outer circumferential surface of a bearing member 6, and comprises an on-off type detection wire 1, a monitoring box 2, a coating 5 and a strain sensor 7, wherein the on-off type detection wire 1 is axially laid on the outer circumferential surface of the bearing member 6 along the bearing member 6, the monitoring box 2 is connected with two ends of the on-off type detection wire 1 and used for detecting the on-off state of the on-off type detection wire 1, the coating 5 is stuck and fixed on the on-off type detection wire 1 and enables the on-off type detection wire 1 to be insulated from the outer circumferential surface of the bearing member 6, and the strain sensor 7 is arranged in parallel with the on-off type detection wire 1;
3) The two ends of the bearing member 6 are clamped by the clamps on the tensile testing machine, the tensile testing machine is started to carry out tensile test, the tensile force F is applied to the bearing member 6, the bearing member 6 generates stress and strain epsilon, the stress can be transmitted to the on-off type detection wire 1 through the coating 5, the on-off type detection wire 1 also generates certain strain, the tensile force F is gradually increased, the strain epsilon is gradually increased until the on-off type detection wire 1 breaks, at the moment, the monitoring box 2 sends out an alarm signal, and the strain value of the strain sensor 7 at the moment is recorded. This strain value may be approximately equal to the strain value at which the strain sensor 7 is mounted on the load bearing member 6 when the on-off type detection wire 1 breaks. The smaller the strain value is, the stronger the capacity of the on-off type detection wire 1 and the coating 5 in the burst early warning detection device to integrally follow the strain change of the bearing member 6 is, the better the integral strain following performance of the on-off type detection wire 1 and the coating 5 is, and the burst early warning detection device has high warning sensitivity.
The cylindrical metal rod is the same as the metal sheet in the first embodiment, and the material, the manufacturing method and the structural characteristics of the coating 5 and the structure of the strain sensor 7 are the same as those in the first embodiment.
The strain sensor 7 and the on-off type detection wire 1 are arranged in parallel. The outer circumference of the cylindrical metal rod is unfolded to be a rectangle, and the shape of the rectangle is the same as that of the outer surface of the metal sheet in the first embodiment, so that the strain sensor 7 and the on-off type detection wire 1 on the outer circumference of the bearing member 6 are arranged in parallel in the same manner as in the first embodiment.
Example III
The detection method for the alarm sensitivity of the burst early-warning detection device provided by the embodiment comprises the following steps in sequence:
1) As shown in fig. 9, a cylindrical gas cylinder or a pressure vessel with a length of a section of cylinder being more than or equal to 1.5 times of the diameter of the section of cylinder is designed and manufactured or directly cut out to be used as a bearing member 6;
2) The method comprises the steps that a burst early warning detection device is additionally arranged on the outer circumferential surface of a bearing member 6, and comprises an on-off type detection wire 1, a monitoring box 2, a coating 5 and a strain sensor 7, wherein the on-off type detection wire 1 is laid on the outer circumferential surface of the bearing member 6 along the circumferential direction of the bearing member 6, the monitoring box 2 is connected with two ends of the on-off type detection wire 1 and used for detecting the on-off state of the on-off type detection wire 1, the coating 5 is stuck and fixed with the on-off type detection wire 1, and the on-off type detection wire 1 is insulated from the outer circumferential surface of the bearing member 6, and the strain sensor 7 is arranged in parallel with the on-off type detection wire 1;
3) The bearing member 6 is made to form a sealed cavity with at least one water inlet 4, pressurized equipment is used to charge air or water into the sealed bearing member 6 through the water inlet 4 according to a certain punching speed, so that tensile stress F is generated on the surface of the bearing member 6, stress and strain epsilon are generated on the bearing member 6, the stress can be transmitted to the on-off type detection wire 1 through the coating 5, certain strain is generated on the on-off type detection wire 1, the tensile force F is gradually increased, the strain epsilon is increased until the on-off type detection wire 1 breaks, at the moment, the monitoring box 2 sends out an alarm signal, and the strain value of the strain sensor 7 at the moment is recorded. This strain value may be approximately equal to the strain value at which the strain sensor 7 is mounted on the load bearing member 6 when the on-off type detection wire 1 breaks. The smaller the strain value is, the stronger the capacity of the on-off type detection wire 1 and the coating 5 in the burst early warning detection device to integrally follow the strain change of the bearing member 6 is, the better the integral strain following performance of the on-off type detection wire 1 and the coating 5 is, and the burst early warning detection device has high warning sensitivity.
The cylindrical gas cylinder or pressure container is the same as the metal sheet in the first embodiment and the cylindrical metal rod in the second embodiment, and the material, manufacturing method and structural characteristics of the coating 5 and the structure of the strain sensor 7 are the same as those of the first embodiment and the second embodiment.
The strain sensor 7 and the on-off type detection wire 1 are arranged in parallel. The outer surface of the cylindrical gas cylinder or the pressure container is unfolded to be a rectangle, and the shape of the rectangle is the same as that of the outer surface of the metal sheet in the first embodiment and that of the cylindrical metal rod in the second embodiment, so that the strain sensor 7 and the on-off type detection wire 1 on the outer circumferential surface of the bearing member 6 are arranged in parallel in the same manner as those of the first embodiment and the second embodiment.
The invention has been described above with reference to the drawings and embodiments, but it should be understood that variations or modifications can be made by those skilled in the art without departing from the true spirit and scope of the invention.
Claims (8)
1. A detection method of the alarm sensitivity of a burst early-warning detection device is characterized in that: the detection method comprises the following steps in sequence:
1) Designing and manufacturing a bearing member (6) capable of generating strain in a certain direction;
2) The method comprises the steps that a bursting early warning detection device is additionally arranged on the surface of a bearing member (6), and the bursting early warning detection device comprises an on-off type detection wire (1) laid on the outer surface of the bearing member (6) along the direction of generating strain, a monitoring box (2) connected with two ends of the on-off type detection wire (1) and used for detecting the on-off state of the on-off type detection wire (1), a coating (5) which is used for adhering and fixing the on-off type detection wire (1) and insulating the on-off type detection wire (1) from the surface of the bearing member (6), and a strain sensor (7) which is arranged in parallel with the on-off type detection wire (1);
3) And applying a tensile force F to the bearing member (6) along the laying direction of the on-off type detection line (1), so that the bearing member (6) generates strain epsilon, gradually increasing the tensile force F, and increasing the strain epsilon until the on-off type detection line (1) breaks, and then the monitoring box (2) sends out an alarm signal to record the strain value of the strain sensor (7) at the moment.
2. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: the bearing member (6) is a metal sheet with the thickness of 5mm, the width of 10mm and the length of 50 mm-150 mm.
3. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: the bearing member (6) adopts a cylindrical metal rod with the diameter of 10 mm-50 mm.
4. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: the bearing member (6) adopts a cylindrical gas cylinder with the length of the cylindrical section being more than or equal to 1.5 times of the diameter of the cylindrical section.
5. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: the coating (5) is coated on the bearing member (6) by adopting a process of spraying and brushing, the thickness is 0.1-2 mm, the width is 5-20 mm, the length is 30-50 mm, and the epoxy resin is selected.
6. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: when a tensile force F is applied to the force bearing member (6), the two ends of the on-off type detection wire (1) are in a free state free from external force.
7. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: when the monitoring box (2) alarms, the strain value of the strain sensor (7) is less than or equal to 2 percent.
8. The method for detecting the alarm sensitivity of the burst early-warning detection device according to claim 1, wherein the method comprises the following steps: the bearing member (6) adopts any one of alloy steel and carbon steel.
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| CN202011210262.2A CN112229724B (en) | 2020-11-03 | 2020-11-03 | Detection method for alarm sensitivity of burst early warning detection device |
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| CN202011210262.2A CN112229724B (en) | 2020-11-03 | 2020-11-03 | Detection method for alarm sensitivity of burst early warning detection device |
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| CN201105110Y (en) * | 2007-11-09 | 2008-08-27 | 侯珏 | Fire-fighting pressure gas cylinder |
| CN101716407A (en) * | 2009-12-28 | 2010-06-02 | 侯珏 | Method for detecting anti-explosion alarming function of fire control pressure steel cylinder |
| CN102565309A (en) * | 2011-12-12 | 2012-07-11 | 上海兰宝传感科技股份有限公司 | Equipment and method for detecting burst tendency of glass of curtain wall |
| CN103994930A (en) * | 2014-04-22 | 2014-08-20 | 张卫社 | Method for cylindrical pressure air cylinder or pressure pipeline to perform pressure test |
| CN108211191A (en) * | 2017-12-08 | 2018-06-29 | 张卫社 | A kind of break-make type explosion early warning detection cable and detector |
| CN108224089A (en) * | 2017-12-08 | 2018-06-29 | 张卫社 | The cylindric load-carrying construction of break-make type explosion early warning detection cable is installed |
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2020
- 2020-11-03 CN CN202011210262.2A patent/CN112229724B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201105110Y (en) * | 2007-11-09 | 2008-08-27 | 侯珏 | Fire-fighting pressure gas cylinder |
| CN101716407A (en) * | 2009-12-28 | 2010-06-02 | 侯珏 | Method for detecting anti-explosion alarming function of fire control pressure steel cylinder |
| CN102565309A (en) * | 2011-12-12 | 2012-07-11 | 上海兰宝传感科技股份有限公司 | Equipment and method for detecting burst tendency of glass of curtain wall |
| CN103994930A (en) * | 2014-04-22 | 2014-08-20 | 张卫社 | Method for cylindrical pressure air cylinder or pressure pipeline to perform pressure test |
| CN108211191A (en) * | 2017-12-08 | 2018-06-29 | 张卫社 | A kind of break-make type explosion early warning detection cable and detector |
| CN108224089A (en) * | 2017-12-08 | 2018-06-29 | 张卫社 | The cylindric load-carrying construction of break-make type explosion early warning detection cable is installed |
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| CN112229724A (en) | 2021-01-15 |
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