CN115856397A - Discharge voltage measurement auxiliary tool of plasma ignition system - Google Patents
Discharge voltage measurement auxiliary tool of plasma ignition system Download PDFInfo
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- CN115856397A CN115856397A CN202211582488.4A CN202211582488A CN115856397A CN 115856397 A CN115856397 A CN 115856397A CN 202211582488 A CN202211582488 A CN 202211582488A CN 115856397 A CN115856397 A CN 115856397A
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Abstract
The invention discloses a discharge voltage measurement auxiliary tool of a plasma ignition system, relates to the technical field of discharge voltage measurement, and aims to complete discharge voltage measurement of the plasma ignition system under the condition that the plasma ignition system is not structurally modified. The technical points of the invention comprise: the auxiliary measuring tool comprises a conductive contact, an insulating ceramic bead, an upper connecting nut, a lower connecting nut, an insulating part, a cable contact, a wiring terminal, a main conductor and a branch conductor; the conductive contact is connected with the insulating ceramic bead, the insulating ceramic bead is connected with the insulating part, and the upper connecting nut is connected with the lower connecting nut; the insulating ceramic beads, the insulating part and the cable contact are all arranged inside the upper connecting nut and the lower connecting nut; the main conductor sequentially passes through the conductive contact, the insulating ceramic beads, the insulating part, the wiring terminal and the cable contact. The invention avoids the direct contact of the voltage measuring probe and the plasma generator, and protects the measuring equipment; and the measurement error caused by poor contact of the voltage measurement probe is avoided.
Description
Technical Field
The invention relates to the technical field of discharge voltage measurement, in particular to a discharge voltage measurement auxiliary tool of a plasma ignition system.
Background
The plasma ignition technology is a more advanced ignition technology developed on the basis of the pre-combustion torch ignition technology, and has the advantages of high ignition reliability, short delay time and wide ignition boundary. The plasma ignition system functions as a means for accelerating and intensifying combustion by applying external energy (electric field, magnetic field, high temperature, etc.) to partially decompose the air-fuel mixture in the combustion chamber of the gas turbine into plasma (i.e., fourth state of matter present) thermal jets. For any ignition technology, the ignition energy is the focus of attention. The measurement of the ignition energy is mainly divided into the measurement of the discharge voltage and the measurement of the discharge current during ignition, and the ignition energy of the ignition system is obtained by performing time integration on the measured discharge voltage and the measured discharge current. For a plasma ignition system, the problem of unstable placement of a voltage measuring probe exists in the discharge voltage measurement during ignition, and an ignition core formed by the plasma ignition system has an ablation problem on the voltage measuring probe, so that the measurement equipment is damaged and measurement errors are caused.
Disclosure of Invention
To this end, the present invention proposes a discharge voltage measurement aid for a plasma ignition system in an attempt to solve or at least alleviate at least one of the problems presented above.
A discharge voltage measurement aid for a plasma ignition system, comprising: the cable connector comprises a conductive contact, an insulating ceramic bead, an upper connecting nut, a lower connecting nut, an insulating part, a cable contact, a wiring terminal, a main conductor and a branch conductor; wherein the content of the first and second substances,
the conductive contact is connected with the insulating ceramic bead, the insulating ceramic bead is connected with the insulating part, and the upper connecting nut is connected with the lower connecting nut;
the insulating ceramic beads, the insulating piece and the cable contact are all placed inside the upper connecting nut and the lower connecting nut;
the main conductor sequentially passes through the conductive contact, the insulating ceramic beads, the insulating part, the wiring terminal and the cable contact.
Furthermore, one end of the conductive contact is a circular contact, the other end of the conductive contact is a cylindrical external thread, the cylindrical external thread is connected with the circular contact, and a first through hole is formed in the center of the conductive contact.
Furthermore, the insulating ceramic bead is composed of two parts, one part is a cylindrical cylinder, and one end inside the cylindrical cylinder is provided with a first internal thread which is connected with the cylindrical external thread of the conductive contact; the other part connected with the cylindrical cylinder is a first round step; and a second through hole is formed in the center of the insulating ceramic bead.
Furthermore, the upper coupling nut consists of two parts, wherein the first part is a cylindrical cylinder, and one end inside the cylindrical cylinder is provided with a second internal thread; the middle section of the cylindrical cylinder is of a hexagonal structure, a second round step is arranged in the cylindrical cylinder, and the second round step is fixedly connected with the first round step of the insulating ceramic bead; the second part is a circular boss, and the upper end of the second part is provided with an upper supporting slot for placing a wiring terminal and a branch wire.
Furthermore, the lower connecting nut consists of two parts, wherein the first part is a cylinder with external threads, the second part connected with the first part is a circular ring-shaped concave table, and the upper end of the circular ring-shaped concave table is provided with a lower wiring groove for placing a wiring terminal and a branch wire;
the circular boss is connected with the circular concave table, and the upper wiring groove is connected with the lower wiring groove.
Furthermore, the insulating part is a cylinder with a third through hole in the center, and one end of the insulating part is fixedly connected with the bottom of the first round step of the insulating ceramic bead.
Furthermore, a fourth through hole is formed in the center of the cable contact, a hidden groove is formed for hiding the main conductor, and the hidden groove is a groove which penetrates through the upper section and the lower section of the cable contact and is inward; the main conductor is bent through a fourth pass Kong Houxiang hidden slot of the cable contact, and then placed in the hidden slot.
Furthermore, the wiring terminal, the main conductor and the branch conductor are all standard parts; the wiring terminal is a round cold-pressed bare terminal.
Further, the upper coupling nut, the lower coupling nut and the insulating member are all made of 3D printing resin.
Further, the second internal thread of the upper coupling nut is used for being connected with a plasma generator in a plasma ignition system when voltage measurement is carried out; and the cylinder with the external thread in the lower coupling nut is used for being connected with a high-voltage cable in a plasma ignition system when voltage measurement is carried out.
The beneficial technical effects of the invention are as follows:
the auxiliary tool for measuring the discharge voltage of the plasma ignition system is simple to install and stable to place, prevents a voltage measuring probe from being in direct contact with a plasma generator in the plasma ignition system, prevents an ignition fire core generated by the plasma generator from ablating the voltage measuring probe, and further protects measuring equipment; and the measurement error caused by poor contact of the voltage measurement probe is avoided. The invention has strong practical value.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
FIG. 1 is a schematic view of a discharge voltage measurement auxiliary tool of the plasma ignition system of the present invention;
FIG. 2 is a schematic view of the conductive contacts of the discharge voltage measurement aid of the plasma ignition system of the present invention;
FIG. 3 is a schematic view of an insulating ceramic bead of the discharge voltage measurement auxiliary tool of the plasma ignition system of the present invention;
FIG. 4 is a schematic view of an upper coupling nut of the discharge voltage measurement auxiliary tool of the plasma ignition system of the present invention;
FIG. 5 is a graph of the discharge of the plasma ignition system of the present invention a lower coupling nut schematic of the voltage measurement auxiliary tool;
FIG. 6 is a schematic view of the insulator of the discharge voltage measurement auxiliary tool of the plasma ignition system of the present invention;
FIG. 7 is a schematic view of the cable contacts of the discharge voltage measurement aid of the plasma ignition system of the present invention;
FIG. 8 is a schematic diagram of the use of the discharge voltage measurement auxiliary tool of the plasma ignition system of the present invention.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The invention provides a discharge voltage measurement auxiliary tool of a plasma ignition system, which is used for measuring the discharge voltage of the plasma ignition system under the condition that the structure of the plasma ignition system is not changed. The discharge voltage measurement auxiliary tool is simple to install, stable to place and free of influence on a measurement result; and the measurement result is ensured not to be caused by poor contact of the discharge voltage measurement probe so as to cause measurement error; and secondly, the burning of the ignition fire core to the voltage measuring probe is avoided, and the measuring equipment is protected.
The embodiment of the invention provides a discharge voltage measurement auxiliary tool of a plasma ignition system, which comprises: the cable connector comprises a conductive contact 1, insulating ceramic beads 2, an upper coupling nut 3, a lower coupling nut 4, an insulating part 5, a cable contact 6, a wiring terminal 7, a main conductor 8 and a branch conductor 9; wherein the content of the first and second substances,
the conductive contact 1 is connected with the insulating ceramic bead 2, the insulating ceramic bead 2 is connected with the insulating part 5, and the upper coupling nut 3 is connected with the lower coupling nut 4;
the insulating ceramic beads 2, the insulating piece 5 and the cable contact 6 are all placed inside the upper coupling nut 3 and the lower coupling nut 4;
the main conductor 8 sequentially passes through the conductive contact 1, the insulating ceramic beads 2, the insulating part 5, the wiring terminal 7 and the cable contact 6.
In this embodiment, preferably, one end of the conductive contact 1 is a circular contact 13, the other end of the conductive contact is a cylindrical external thread 11, the cylindrical external thread 11 is connected with the circular contact 13, and a first through hole 12 is arranged in the center of the conductive contact 1.
In this embodiment, preferably, the insulating ceramic bead 2 is composed of two parts, one part is a cylindrical cylinder, and one end inside the cylindrical cylinder is a first internal thread 21 connected with the cylindrical external thread 11 of the conductive contact 1; the other part connected with the cylindrical cylinder is a first round step 22; and a second through hole 23 is formed in the center of the insulating ceramic bead 2.
In this embodiment, preferably, the upper coupling nut 3 is composed of two parts, the first part is a cylindrical cylinder, and one end inside the cylindrical cylinder is provided with a second internal thread 31; the middle section of the cylindrical cylinder is of a hexagonal structure, a second round step 32 is arranged in the cylindrical cylinder, and the second round step 32 is fixedly connected with the first round step 22 of the insulating ceramic bead 2; the second part is a circular boss 33, and the upper end of the second part is provided with an upper wire slot 34 for placing the wiring terminal 7 and the branch wire 9.
In this embodiment, preferably, the lower coupling nut 4 is composed of two parts, the first part is a cylinder with external threads 41, the second part connected with the first part is a circular concave table 42, and the upper end of the circular concave table 42 is provided with a lower wire slot 43 for placing the connecting terminal 7 and the branch wire 9;
the circular boss 33 is connected with the circular boss 42, and the upper supporting slot 34 is connected with the lower supporting slot 43.
In this embodiment, preferably, the insulating member 5 is a cylinder with a third through hole 51 at the center, and one end of the insulating member 5 is fixedly connected to the bottom of the first circular step 22 of the insulating ceramic bead 2.
In this embodiment, preferably, a fourth through hole 61 is formed in the center of the cable contact 6, and a hidden groove 62 is formed to hide the main conductor 8, where the hidden groove 62 is a groove that penetrates through the cable contact 6 and has an inward cross section; the main conductor 8 is bent toward the hidden groove 62 after passing through the fourth through hole 61 of the cable contact 6, and then placed in the hidden groove 62.
In this embodiment, preferably, the terminal 7, the main conductor 8 and the branch conductor 9 are all standard components; the wiring terminal 7 is a round cold-pressed bare terminal, and the type is OT-4mm for example.
In this embodiment, it is preferable that the upper coupling nut 3, the lower coupling nut 4, and the insulating member 5 are all made of 3D printing resin.
In the present embodiment, it is preferable that the second internal thread 31 of the upper coupling nut 3 is used for connecting with a plasma generator in a plasma ignition system when voltage measurement is performed; the cylinder with the external thread 41 in the lower coupling nut 4 is used for connection with a high voltage cable in a plasma ignition system when voltage measurements are taken.
Another embodiment of the present invention provides an auxiliary tool for measuring a discharge voltage of a plasma ignition system, as shown in fig. 1, the auxiliary tool for measuring a discharge voltage includes nine parts, i.e., a conductive contact 1, an insulating ceramic bead 2, an upper coupling nut 3, a lower coupling nut 4, an insulating member 5, a cable contact 6, a connection terminal 7, a main conductor 8, and a branch conductor 9. The connecting terminal 7, the main conductor 8 and the branch conductor 9 are standard parts.
As shown in fig. 2, one end of the conductive contact 1 is provided with an external thread 11, which is convenient for connection and fixation with the insulating ceramic bead 2; the center of the conductive contact 1 is provided with a first through hole 12 which is a placing space at one end of the main conductor 8; the main lead 8 is connected with the conductive contact 1 in a welding way; the external thread 11 is connected with a circular contact 13.
As shown in fig. 3, one end of the insulating ceramic bead 2 is provided with a first internal thread 21, which facilitates connection and fixation with the conductive contact 1. One end is a first round step 22 which is conveniently fixed in the upper connecting nut 3; the center of the insulating ceramic bead 2 is a second through hole 23 which is a placing space at one end of the main lead wire 8. The insulating ceramic beads 2 are made of ceramic, so that insulation between the main conducting wire 8 to be measured and the outer surface is guaranteed, and the plasma ignition system is prevented from being damaged by breakdown.
As shown in fig. 4, one end of the upper coupling nut 3 is provided with a second internal thread 31, which is convenient for connecting with a plasma generator in a plasma ignition system to be measured, and the middle section of the outer surface is of a hexagonal structure, which is convenient for installation and fixation. One end of the upper coupling nut 3 is a circular boss 33, which is convenient to connect and fix with the lower coupling nut 4, and an upper wiring groove 34 is arranged for placing the wiring terminal 7 and the branch wire 9. The upper coupling nut 3 is fixed with the insulating ceramic bead 2 through a second round step 32. The upper coupling nut 3 material print the resin material for 3D, guarantee to want the insulation of main traverse line 8, branch wire 9 and surface, prevent to take place to puncture and damage plasma ignition system.
As shown in fig. 5, one end of the lower coupling nut 4 is provided with an external thread 41, which is convenient for connecting with a high-voltage cable in a plasma ignition system to be measured. One end of the lower connecting nut 4 is a circular concave platform 42 which is convenient to be connected and fixed with the upper connecting nut 3, and a lower wiring groove 43 is arranged for placing the wiring terminal 7 and the branch wire 9. The lower coupling nut 4 material print the resin material for 3D, guarantee to want the insulation of main conducting wire 8, branch wire 9 and surface, prevent to take place to puncture and damage plasma ignition system.
As shown in fig. 6, the insulating member 5 is a cylinder of 3D printing resin material, and a third through hole 51 is provided in the center of the insulating member 5 and is a space for placing the main body of the main conductor 8. The insulation of the main conductor 8 and the upper coupling nut 3 is ensured, and the plasma ignition system is prevented from being damaged by breakdown.
As shown in fig. 7, the center of the cable contact 6 is a fourth through hole 61, which is a placement space at one end of the main conductor 8, and the main conductor 8 passes through the fourth through hole 61 at the center of the cable contact 6 to be hidden in the hidden groove 62 of the cable contact, so that the cable contact is convenient to detach and install.
Fig. 8 is a schematic diagram illustrating the use of the auxiliary tool for measuring the discharge voltage of the plasma ignition system according to the present invention. When the auxiliary tool for measuring the discharge voltage of the plasma ignition system is used, the upper connecting nut 3 is connected with a plasma generator in the plasma ignition system to be measured, the lower connecting nut 4 is connected with a high-voltage cable in the plasma ignition system to be measured, and the voltage measuring probe is in contact with the wiring terminal 7 to measure the discharge voltage of the plasma ignition system during working.
The auxiliary tool for measuring the discharge voltage of the plasma ignition system is simple to install and stable to place. Meanwhile, the direct contact between the voltage measuring probe and a plasma generator in a plasma ignition system is avoided, the ablation of the voltage measuring probe by an ignition fire core generated by the plasma generator is prevented, and measuring equipment is protected. And the measurement error caused by poor contact of the voltage measurement probe is avoided. Has strong practical value.
While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in such aspects may not be combined to benefit. The invention is intended to cover the spirit and scope of the appended claims various modifications and equivalent arrangements included within the scope.
Claims (10)
1. A discharge voltage measurement auxiliary tool of a plasma ignition system, comprising: the cable connector comprises a conductive contact (1), insulating ceramic beads (2), an upper coupling nut (3), a lower coupling nut (4), an insulating piece (5), a cable contact (6), a wiring terminal (7), a main conductor (8) and a branch conductor (9); wherein the content of the first and second substances,
the conductive contact (1) is connected with the insulating ceramic bead (2), the insulating ceramic bead (2) is connected with the insulating piece (5), and the upper connecting nut (3) is connected with the lower connecting nut (4);
the insulating ceramic beads (2), the insulating piece (5) and the cable contact (6) are all placed inside the upper coupling nut (3) and the lower coupling nut (4);
the main conductor (8) sequentially penetrates through the conductive contact (1), the insulating ceramic beads (2), the insulating piece (5), the wiring terminal (7) and the cable contact (6).
2. The auxiliary tool for measuring the discharge voltage of a plasma ignition system as claimed in claim 1, wherein the conductive contact (1) is a circular contact (13) at one end and a cylindrical external thread (11) at the other end, the cylindrical external thread (11) is connected with the circular contact (13), and a first through hole (12) is arranged in the center of the conductive contact (1).
3. The auxiliary tool for measuring the discharge voltage of a plasma ignition system as claimed in claim 2, wherein the porcelain insulator (2) is composed of two parts, one part is a cylindrical cylinder, and one end inside the cylindrical cylinder is provided with a first internal thread (21) which is connected with the cylindrical external thread (11) of the conductive contact (1); the other part connected with the cylindrical cylinder is a first round step (22); and a second through hole (23) is formed in the center of the insulating ceramic bead (2).
4. A discharge voltage measuring auxiliary tool of a plasma ignition system according to claim 3, characterized in that the upper coupling nut (3) is composed of two parts, the first part is a cylindrical cylinder, and a second internal thread (31) is provided at one end inside the cylindrical cylinder; the middle section of the cylindrical cylinder is of a hexagonal structure, a second round step (32) is arranged in the cylindrical cylinder, and the second round step (32) is fixedly connected with the first round step (22) of the insulating ceramic bead (2); the second part is a circular boss (33), and the upper end of the second part is provided with an upper supporting slot (34) for placing the wiring terminal (7) and the branch wire (9).
5. The auxiliary tool for measuring the discharge voltage of a plasma ignition system according to claim 4, characterized in that the lower coupling nut (4) is composed of two parts, the first part is a cylinder with external threads (41), the second part connected with the first part is a circular ring-shaped concave table (42), and the upper end of the circular ring-shaped concave table (42) is provided with a lower support wire groove (43) for placing the connecting terminal (7) and the branch conducting wire (9);
the circular boss (33) is connected with the circular concave table (42), and the upper supporting wire groove (34) is connected with the lower supporting wire groove (43).
6. The auxiliary tool for measuring the discharge voltage of a plasma ignition system as claimed in claim 5, wherein the insulator (5) is a cylinder with a third through hole (51) arranged at the center, and one end of the insulator (5) is fixedly connected with the bottom of the first round step (22) of the porcelain insulator (2).
7. The auxiliary tool for measuring the discharge voltage of a plasma ignition system according to claim 6, wherein a fourth through hole (61) is formed in the center of the cable contact (6), and a hidden groove (62) is formed for hiding the main conductor (8), wherein the hidden groove (62) is a groove which penetrates through the cable contact (6) and has inward sections; the main lead (8) penetrates through a fourth through hole (61) of the cable contact (6) and then is bent towards the hidden groove (62), and then is placed in the hidden groove (62).
8. The auxiliary tool for measuring the discharge voltage of a plasma ignition system according to claim 1, characterized in that the connecting terminal (7), the main conductor (8) and the branch conductor (9) are standard parts; the wiring terminal (7) is a round cold-pressed bare terminal.
9. The auxiliary tool for discharge voltage measurement of plasma ignition system according to claim 1, characterized in that the material of the upper coupling nut (3), the lower coupling nut (4) and the insulator (5) is 3D printed resin.
10. The auxiliary tool for measuring discharge voltage of plasma ignition system as claimed in claim 5, wherein the second internal thread (31) of the upper coupling nut (3) is used for connecting with plasma generator in plasma ignition system when voltage measurement is performed; the lower coupling nut (4) has a cylinder with an external thread (41) for connection to a high-voltage cable in a plasma ignition system when voltage measurements are taken.
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| CN202211582488.4A CN115856397B (en) | 2022-12-09 | 2022-12-09 | Discharge voltage measurement auxiliary tool of plasma ignition system |
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| CN202211582488.4A CN115856397B (en) | 2022-12-09 | 2022-12-09 | Discharge voltage measurement auxiliary tool of plasma ignition system |
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| CN115856397B (en) | 2023-08-25 |
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