Testing device for detonating capacity of industrial digital detonator
By designing a detonator testing device including temperature and pressure detection mechanisms, the multi-parameter comprehensive evaluation problem of detonator initiation ability testing in the prior art is solved, and high-precision and safe detonator initiation ability testing is achieved.
Patent Information
- Application Number
- CN202422971538.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The existing detonator initiation capability testing methods have problems such as single parameter testing, low test accuracy, environmental pollution and safety hazards, and are unable to comprehensively evaluate factors such as the detonator's explosion products, fragments and shock waves.
A testing device consisting of an outer container, an inner container, a temperature detection mechanism, and a pressure detection mechanism was designed. Through the temperature measuring medium and buffer container in a confined space, the temperature change, pressure change, and kinetic energy of the fragments during the detonator explosion were detected in real time, and the detonation capability of multiple parameters was calculated by combining them.
It realizes the comprehensive quantitative test of the detonator's initiation ability, and can simultaneously measure the parameters of explosion products, fragment energy and shock waves, thereby improving the test accuracy and safety and avoiding environmental pollution.
Smart Images
Figure CN223361254U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of detonator testing, and in particular relates to a testing device for the initiation capability of industrial digital detonators. Background Art
[0002] Industrial digital detonators are commonly used in blasting projects. Exploring their initiation capabilities is crucial for safe and efficient engineering blasting. Detonator initiation capabilities are determined by three factors: explosion products, fragments, and shock waves. Therefore, evaluating a detonator's initiation capabilities requires an organic integration of these three factors, rather than simply stating that a detonator's initiation capabilities are determined by a single factor.
[0003] The test methods currently adopted are mostly qualitative characterization methods. Commonly used methods to characterize the detonation ability of detonators are:
[0004] 1. Indirect testing methods, such as: lead plate perforation method; steel block indentation method; detonator explosion shock wave parameter testing method; detonator fragment velocity measurement method, etc.
[0005] 2. Direct testing method: such as insensitive explosive method; partition test method, etc.
[0006] 3. Underwater explosion test method: The detonation capability of the detonator is evaluated by testing the underwater shock wave and bubble pulsation wave parameters after the detonator is detonated.
[0007] Deficiencies and defects in the current detonator initiation capability test method:
[0008] 1. Lead plate perforation method:
[0009] (1) This method only reflects the axial detonation capability of the detonator, but fails to characterize its radial effect;
[0010] (2) The perforation of the lead plate of the detonator is the mechanical damage effect after the detonator explodes, which reflects the concept of intensity in the theory of explosives and cannot fully reflect the detonation effect of the detonator fragments and shock waves on the charge;
[0011] (3) The lead plate used in this method is a heavy metal, which causes serious pollution to the environment and great physical harm to the human body.
[0012] 2. Detonator shock wave pressure test method (manganese copper pressure sensor method):
[0013] (1) This method cannot measure the energy of fragments;
[0014] (2) It is impossible to test the heat generated by the explosion process;
[0015] 3. Underwater testing method:
[0016] (1) This method cannot measure the energy of fragments;
[0017] (2) It is impossible to test the heat generated by the explosion process.
[0018] In the existing technology, existing test methods can only test a single parameter and cannot test multiple parameters at the same time. Most test methods are affected by multiple factors such as the environment, site or equipment during actual operation and are inconvenient to perform. In addition, the test methods have certain defects to a greater or lesser extent, resulting in insufficient test accuracy, low test efficiency, poor results, and may also cause environmental pollution and even pose safety hazards. Utility Model Content
[0019] In order to overcome the deficiencies of the prior art and solve the problems existing in the prior art, the utility model provides a device for testing the initiation capability of industrial digital detonators.
[0020] The utility model is achieved through the following technical solutions.
[0021] The utility model provides a testing device for the detonating ability of industrial digital detonators, comprising an outer container and an inner container, wherein the top of the outer container is connected to an outer cover body, the inner container is located inside the outer container, a first chamber for accommodating a temperature measuring medium is formed between the outer container and the inner container, the outer container is provided with a temperature detection mechanism for detecting temperature changes of the temperature medium, the inner container is connected to a sealed cover body, the inner container and the sealed cover body constitute a second chamber for accommodating a detonator, the sealed cover body is provided with a control electrode, one end of the control electrode is located in the second chamber for connecting to a lead of the detonator, the other end of the control electrode is located at the top of the sealed cover body and is connected to a controller for controlling the detonation of the detonator, and a side of the inner container is connected to a pressure detection mechanism for detecting changes in the explosion pressure of the detonator.
[0022] As a further improvement of the above scheme, a buffer container and a buffer cover made of buffer material are provided in the second chamber, and the buffer container and the buffer cover constitute a third chamber for accommodating detonators. The buffer cover is constructed with a first opening for the detonator lead to pass through, and the pressure detection mechanism is used to detect the pressure change in the third chamber caused by the explosion of the detonator.
[0023] As a further improvement of the above scheme, the control electrode includes a first electrode and a second electrode, and the sealed cover is constructed with an installation port for installing the first electrode. The outside of the first electrode is sleeved with an insulating sleeve, and the first electrode is inserted into the installation port through the insulating sleeve. One end of the first electrode extends into the sealed chamber and is connected to one of the leads of the detonator. The other end of the first electrode is located outside the sealed cover for an external controller, and one end of the second electrode is located inside the sealed cover for connecting to another lead of the detonator. The other end of the second electrode is arranged outside the sealed cover for an external controller.
[0024] As a further improvement of the above solution, a bracket for placing the inner container is provided in the outer container, the bottom of the bracket is fixedly connected to the outer container, and the top of the bracket has a groove for accommodating the bottom of the inner container to be embedded.
[0025] As a further improvement of the above solution, the inner container and the sealed cover are connected by threads, a sealing ring is provided between the inner container and the sealed cover, and an external hexagonal protrusion is provided at the top center of the sealed cover.
[0026] As a further improvement of the above solution, the temperature detection mechanism is a temperature sensor, and the temperature sensor is arranged on the side wall of the outer cover or the outer container.
[0027] As a further improvement of the above scheme, the pressure detection mechanism includes an extension tube and a pressure sensor. A connector connected to the second chamber is constructed on the outer wall of the inner container. One end of the extension tube is connected to the connector, and the other end of the extension tube extends outside the outer container. The pressure sensor is arranged at the end of the extension tube located outside the outer container.
[0028] As a further improvement of the above solution, a second opening is constructed on the outer cover.
[0029] As a further improvement of the above solution, the inner container, the sealed cover, the first electrode and the second electrode are all made of Q345 steel, and the insulating sleeve is made of insulating bakelite.
[0030] As a further improvement of the above solution, the cushioning material is EVA foam.
[0031] The beneficial effects of the utility model are:
[0032] 1. The sealed connection between the inner container and the sealed cover in the present invention can form a closed space for the detonator explosion. The closed cover can connect the detonator to an external controller to realize external or remote control of detonating the detonator. The pressure detection mechanism can detect the pressure change caused by the detonator explosion in the closed space in real time. Combined with the calculation, the work done by the shock wave and the gas products can be obtained.
[0033] 2. The output of the detonator explosion mainly takes three forms: shock wave, fragments and hot explosion gas products. Therefore, the heat generated by the explosion cannot be ignored. In the utility model, the inner container is arranged in the outer and middle containers. By loading a temperature measuring medium into the outer container and cooperating with a temperature detection mechanism, the temperature change of the temperature measuring medium caused by the detonator explosion can be detected in real time. Combined with the calculation, the total heat released after the detonator explosion can be obtained.
[0034] 3. The utility model is provided with a buffer container, which cooperates with the buffer cover to form a buffer explosion space. Since the buffer container and the buffer cover are both made of buffer materials, as the detonator explodes, the detonator fragments will be embedded in the fragment buffer container and the inner wall of the buffer cover, which can collect the fragments and, at the same time, calculate the kinetic energy of the fragments after the detonator explosion.
[0035] 4. This device has a simple structure, is easy to process and manufacture, and has simple test steps and strong operability. It is a quantitative test method and can obtain multiple data in one test, such as fragment kinetic energy, total shock wave gas work and heat, etc., which can comprehensively measure the detonation ability of the detonator. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 It is a structural diagram of the utility model;
[0037] Figure 2 It is a schematic diagram of the internal structure of the foreign container of the utility model;
[0038] Figure 3 It is a schematic diagram of the internal structure of the foreign container of the utility model;
[0039] Figure 4 This is a schematic structural diagram of the container in the utility model;
[0040] Figure 5 This is a schematic diagram of the internal structure of the container in the utility model;
[0041] Figure 6 It is a structural diagram of the sealed cover body in the utility model;
[0042] Figure 7 It is a schematic diagram of the internal structure of the buffer container in the utility model.
[0043] In the figure: outer container 1, inner container 2, connector 201, sealed cover 3, mounting port 301, buffer container 4, buffer cover 5, first opening 501, first electrode 6, second electrode 7, insulating sleeve 8, bracket 9, groove 901, external hexagonal protrusion 10, temperature sensor 11, outer cover 12, second opening 1201, extension tube 13, pressure sensor 14, sealing ring 15. DETAILED DESCRIPTION
[0044] In order to further illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0045] like Figures 1 to 7As shown, the utility model provides a testing device for the detonating ability of industrial digital detonators, comprising an outer container 1 and an inner container 2. The top of the outer container 1 is connected to an outer cover 12, the inner container 2 is located inside the outer container 1, and a first chamber for accommodating a temperature measuring medium is formed between the outer container 1 and the inner container 2. The outer container 1 is provided with a temperature detection mechanism for detecting temperature changes of the temperature medium, the inner container 2 is connected to a sealed cover 3, the inner container 2 and the sealed cover 3 constitute a second chamber for accommodating a detonator, the sealed cover 3 is provided with a control electrode, one end of the control electrode is located in the second chamber for connecting to a lead of the detonator, the other end of the control electrode is located at the top of the sealed cover 3 and is connected to a controller for controlling the detonation of the detonator, and the side of the inner container 2 is connected with a pressure detection mechanism for detecting changes in the explosion pressure of the detonator.
[0046] Specifically, the temperature detection mechanism is a temperature sensor 11, which is disposed on the outer cover 12 or the side wall of the outer container 1. The heat generated by the detonator explosion is transferred to the temperature measuring medium through the outer container 1 and the inner container 2. The temperature sensor 11 can detect the temperature change of the temperature measuring medium in real time.
[0047] Preferably, the temperature measuring medium is liquid, preferably water.
[0048] Furthermore, the pressure detection mechanism includes an extension tube 13 and a pressure sensor 14. A connector 201 communicating with the second chamber is constructed on the outer wall of the inner container 2. One end of the extension tube 13 is connected to the connector 201, and the other end of the extension tube 13 extends outside the outer container 1. The pressure sensor 14 is located at the end of the extension tube 13 outside the outer container 1. The pressure sensor 14 can detect pressure changes caused by detonator explosions in real time. The extension tube 13 is provided to prevent damage to the pressure sensor 14 due to detonator explosions.
[0049] Furthermore, the extension tube 13 is threadedly connected to the connector 201 , and a sealing ring is provided between the extension tube 13 and the outer container 1 to prevent the liquid temperature measuring medium from flowing out.
[0050] Furthermore, a bracket 9 for placing the inner container is provided in the outer container 1 , the bottom of the bracket 9 is fixedly connected to the outer container 1 , and the top of the bracket 9 has a groove 901 for accommodating the bottom of the inner container 2 to be embedded.
[0051] Specifically, the bracket 9 is a tripod bracket, the bottom of which can be welded to the outer container 1. The bracket 9 supports the inner container 2 so that the heat emitted by the inner container 2 is more evenly transferred to the temperature measuring medium.
[0052] Furthermore, the top of the bracket 9 with the groove 901 can be constructed as a frame structure to facilitate heat transfer.
[0053] Specifically, the inner container 2 and the sealed cover 3 are connected by threads, and a sealing ring 15 is provided between the inner container 2 and the sealed cover 3 to prevent the temperature measuring medium from entering the inner container 2.
[0054] Furthermore, an external hexagonal protrusion 10 is provided at the center of the top of the sealed cover 3, so as to facilitate the tighter connection between the inner container 2 and the threaded portion of the sealed cover 3 by using a tool such as a wrench.
[0055] Specifically, the control electrode includes a first electrode 6 and a second electrode 7. The sealed cover 3 is constructed with an installation port 301 for installing the first electrode 6. The outside of the first electrode 6 is sleeved with an insulating sleeve 8. The first electrode 6 is inserted into the installation port 301 through the insulating sleeve 8. One end of the first electrode 6 extends into the sealed chamber and is connected to one of the leads of the detonator. The other end of the first electrode 6 is located outside the sealed cover 3 for an external controller. One end of the second electrode 7 is located inside the sealed cover 3 for connecting to another lead of the detonator. The other end of the second electrode 7 is arranged outside the sealed cover 3 for an external controller.
[0056] Specifically, the outer cover 12 is provided with a second opening 1201. The provision of the outer cover 12 can reduce heat exchange between the temperature measuring medium in the outer container 1 and the external air, thereby preventing heat loss. The size of the second opening 1201 can be set relatively small according to actual conditions. The provision of the second opening 1201 can facilitate the passage of the wires of the controller, so that the wires are connected to the first electrode 6 and the second electrode 7.
[0057] Preferably, the inner container 2, the sealed cover 3, the first electrode 6 and the second electrode 7 are all made of Q345 steel, which will not be damaged by the explosion of the detonator and can also collect detonator fragments. The insulating sleeve 8 is preferably made of insulating bakelite to avoid short circuit between the first electrode 6 and the second electrode 7.
[0058] Furthermore, the maximum liquid level of the temperature measuring medium is no higher than the top of the insulating sleeve 8, so that the inner container 2 and the sealed cover 3 are in contact with the temperature measuring medium as much as possible, which facilitates heat transfer.
[0059] Furthermore, a buffer container 4 and a buffer cover 5, both made of a buffering material, are disposed within the second chamber. These two components form a third chamber for accommodating a detonator. The buffer cover 5 is provided with a first opening 501 for the detonator lead to pass through. A pressure detection mechanism is used to detect pressure changes within the third chamber caused by the detonator explosion. In this embodiment, the detonator lead first passes through the first opening 501 and then connects to the first electrode 6 and the second electrode 7. During use, the detonator is suspended within the third chamber formed by the buffer container 4 and the buffer cover 5. These components collect fragments generated by the detonator explosion, which also embed into the sidewalls of the buffer container 4 and the buffer cover 5.
[0060] Preferably, the cushioning material is EVA foam.
[0061] Specifically, a side hole is configured on the side wall of the buffer container 4 , and the side hole is communicated with the connector 201 . The side hole is used for the pressure detection mechanism to detect the pressure change in the buffer container 4 .
[0062] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.
[0063] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A device for testing the explosive capability of industrial digital detonators, characterized by: The invention comprises an outer container (1) and an inner container (2), wherein the top of the outer container (1) is connected to an outer cover (12), the inner container (2) is located inside the outer container (1), a first chamber for accommodating a temperature measuring medium is formed between the outer container (1) and the inner container (2), the outer container (1) is provided with a temperature detection mechanism for detecting temperature changes of the temperature measuring medium, the inner container (2) is connected to a sealed cover (3), the inner container (2) and the sealed cover (3) constitute a second chamber for accommodating a detonator, the sealed cover (3) is provided with a control electrode, one end of the control electrode is located in the second chamber for connecting to a lead of the detonator, the other end of the control electrode is located at the top of the sealed cover (3) and is connected to a controller for controlling the detonation of the detonator, and the side of the inner container (2) is connected to a pressure detection mechanism for detecting changes in the explosion pressure of the detonator.
2. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: A buffer container (4) and a buffer cover (5) made of a buffer material are provided in the second chamber. The buffer container (4) and the buffer cover (5) constitute a third chamber for accommodating a detonator. The buffer cover (5) is provided with a first opening (501) for the detonator lead to pass through. The pressure detection mechanism is used to detect pressure changes in the third chamber caused by the explosion of the detonator.
3. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: The control electrode comprises a first electrode (6) and a second electrode (7); the sealed cover (3) is provided with an installation opening (301) for installing the first electrode (6); the first electrode (6) is sleeved with an insulating sleeve (8) on its exterior; the first electrode (6) is inserted into the installation opening (301) through the insulating sleeve (8); one end of the first electrode (6) extends into the sealed chamber and is connected to one of the leads of the detonator; the other end of the first electrode (6) is located outside the sealed cover (3) for an external controller; one end of the second electrode (7) is located inside the sealed cover (3) for connecting to another lead of the detonator; the other end of the second electrode (7) is arranged outside the sealed cover (3) for an external controller.
4. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: A bracket (9) for placing the inner container is provided in the outer container (1); the bottom of the bracket (9) is fixedly connected to the outer container (1); and the top of the bracket (9) has a groove (901) for accommodating the bottom of the inner container (2) to be embedded.
5. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: The inner container (2) and the sealed cover (3) are connected by threads, a sealing ring (15) is provided between the inner container (2) and the sealed cover (3), and an outer hexagonal protrusion (10) is provided at the top center of the sealed cover (3).
6. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: The temperature detection mechanism is a temperature sensor (11), and the temperature sensor (11) is arranged on the outer cover (12) or the side wall of the outer container (1).
7. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: The pressure detection mechanism comprises an extension tube (13) and a pressure sensor (14); a connector (201) communicating with the second chamber is constructed on the outer wall of the inner container (2); one end of the extension tube (13) is connected to the connector (201); the other end of the extension tube (13) extends outside the outer container (1); and the pressure sensor (14) is arranged at the end of the extension tube (13) located outside the outer container (1).
8. The device for testing the explosive capability of industrial digital detonators according to claim 1, characterized in that: The outer cover (12) is provided with a second opening (1201).
9. The device for testing the initiation capability of industrial digital detonators according to claim 3, characterized in that: The inner container (2), the sealed cover (3), the first electrode (6) and the second electrode (7) are all made of Q345 steel, and the insulating sleeve (8) is made of insulating bakelite.
10. The device for testing the explosive capability of industrial digital detonators according to claim 2, characterized in that: The cushioning material is EVA foam.