CN215256285U - Dual-power switching system of double fans - Google Patents
Dual-power switching system of double fans Download PDFInfo
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- CN215256285U CN215256285U CN202121046068.5U CN202121046068U CN215256285U CN 215256285 U CN215256285 U CN 215256285U CN 202121046068 U CN202121046068 U CN 202121046068U CN 215256285 U CN215256285 U CN 215256285U
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Abstract
The application discloses two power switching systems of double fan relates to the mine ventilation field. The system comprises a substation, a main transformer, an auxiliary transformer, a main fan unit, an auxiliary fan unit, a main fan starting module, an auxiliary fan starting module and an automatic switching unit; the main transformer and the auxiliary transformer are respectively electrically connected with a substation; the main fan unit is electrically connected with a main electric appliance and comprises a main fan and a main fan control module which are electrically connected with each other, and the main fan control module is electrically connected with the automatic switching unit; the automatic switching unit is electrically connected with the main fan starting module; the main fan starting module is electrically connected with the main fan unit; the auxiliary fan unit is electrically connected with the auxiliary transformer and comprises an auxiliary fan control module and an auxiliary fan which are electrically connected with each other, and the auxiliary fan control module is electrically connected with the automatic switching unit; the automatic switching unit is electrically connected with the auxiliary fan starting module; the auxiliary fan starting module is electrically connected with the auxiliary fan unit. By adopting the system, the normal operation of the fan system under the mine is realized.
Description
Technical Field
The application relates to the technical field of mine ventilation, in particular to a double-fan double-power-supply switching system.
Background
In the production process of mines, whether the ventilation system can work effectively or not is directly related to the safety of mine production. At present, a local ventilator under a coal mine often causes unplanned air stopping due to power failure or fan damage, so that gas is over-limited, and safety production of personnel under the coal mine is directly threatened.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a double-fan double-power-supply switching system, and solves the problem that a fan system in the prior art often cannot stop air due to power failure or fan damage, so that gas is over-limit, and normal operation of the fan system in a mine is realized.
The embodiment of the utility model provides a double-fan double-power switching system, including electric substation, main transformer, vice transformer, main fan unit, vice fan unit, main fan start module, vice fan start module and automatic switching unit;
the main transformer and the auxiliary transformer are respectively electrically connected with the substation and can perform voltage reduction treatment on the electricity transmitted by the substation;
the main fan unit is electrically connected with the main electric appliance and comprises a main fan and a main fan control module which are electrically connected with each other, the main fan control module is electrically connected with the automatic switching unit, and the main fan control module can transmit the main fan operation signal to the automatic switching unit;
the automatic switching unit is electrically connected with the main fan starting module and can control the on-off of the main fan starting module;
the main fan starting module is electrically connected with the main fan unit and controls the start and stop of the main fan;
the auxiliary fan unit is electrically connected with the auxiliary transformer and comprises an auxiliary fan control module and an auxiliary fan which are electrically connected with each other, the auxiliary fan control module is electrically connected with the automatic switching unit, and the auxiliary fan control module can transmit an auxiliary fan operation signal to the automatic switching unit;
the automatic switching unit is electrically connected with the auxiliary fan starting module and can control the on-off of the auxiliary fan starting module;
the auxiliary fan starting module is electrically connected with the auxiliary fan unit and controls the starting and stopping of the auxiliary fan.
Further, the automatic switching unit includes an automatic switching module and a processor electrically connected to each other;
the processor is respectively and electrically connected with the main fan control module and the auxiliary fan control module, can receive and process signals transmitted by the main fan control module or the auxiliary fan control module, and transmits a processing result to the automatic switching module;
the automatic switching module is respectively and electrically connected with the main fan starting module and the auxiliary fan starting module and can control the on-off of the main fan starting module or the auxiliary fan starting module.
Furthermore, the device also comprises a first electric quantity collecting module;
the first electric quantity collection module is arranged on a connecting line between the main power transformer and the main fan unit and electrically connected with the automatic switching unit, and is used for monitoring the voltage of the main fan unit and transmitting the voltage information of the main fan unit to the automatic switching unit.
Furthermore, the device also comprises a second electric quantity collecting module;
the second electric quantity collection module is arranged on a connecting line between the auxiliary power transformer and the auxiliary fan unit and electrically connected with the automatic switching unit, and is used for monitoring the voltage of the auxiliary fan unit and transmitting the voltage information of the auxiliary fan unit to the automatic switching unit.
Still further, the main fan start module includes a main fan starter and a first current sensor;
the first current sensor is connected in parallel to two ends of the main fan starter, is connected in series with the automatic switching unit, and is used for transmitting current signals at two ends of the main fan starter to the automatic switching unit.
Still further, the secondary fan start module includes a secondary fan starter and a second current sensor;
and the second current sensor is connected in parallel to two ends of the auxiliary fan starting module and then connected in series with the automatic switching unit and is used for transmitting current signals at two ends of the auxiliary fan starter to the automatic switching unit.
Further, the main transformer and the auxiliary transformer both reduce the voltage of the substation to 660V.
The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:
the embodiment of the utility model provides a pair of double power supply switching system of double fan divides two way circuits through the electric substation to carry out step-down processing through main transformer and vice transformer to voltage respectively, then put through main fan unit and vice fan unit respectively, with the equal electricity of main fan unit and vice fan unit automatic switch-over unit, then automatic switch-over unit starts main fan or vice fan through control main fan start module or vice fan start module start-up main fan or vice fan. The specific realization principle is as follows: the main transformer and the auxiliary transformer are simultaneously electrified and respectively transmit electricity to the main fan unit and the auxiliary fan unit, the main fan unit and the auxiliary fan unit are both electrified, then the main fan control module transmits an electrified signal of the main fan to the automatic switching unit, the automatic switching unit controls the main fan starting module to start the main fan, and simultaneously transmits a starting signal to the automatic switching unit, at the moment, the automatic switching unit controls the auxiliary fan starting module to be closed, the normal operation of the main fan unit is ensured, and the auxiliary fan unit is closed; when the main fan unit fails, the automatic switching unit obtains a signal, the auxiliary fan starting module is started, and the auxiliary fan unit is started. Through the double-fan double-power-supply switching system adopting the scheme, the problem that the planned wind cut-off is caused by power failure or fan damage in the conventional fan system and gas is over-limit is solved effectively, and the normal operation of the fan system under the mine is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dual-fan dual-power switching system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a dual-fan dual-power switching system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram three of a dual-fan dual-power switching system provided in the embodiment of the present application;
fig. 4 is a fourth structural schematic diagram of a dual-fan dual-power switching system provided in the embodiment of the present application.
Icon: 1. a substation; 2. a main electric appliance; 3. a main fan unit; 31. a main fan; 32. a main blower control module; 4. a main fan starting module; 41. a main fan starter; 42. a first current sensor; 5. an automatic switching unit; 51. an automatic switching module; 52. a processor; 6. an auxiliary fan starting module; 61. an auxiliary fan starter; 62. a second current sensor; 7. an auxiliary fan unit; 71. a secondary fan control module; 72. an auxiliary fan; 8. an auxiliary transformer; 9. a first electric quantity collection module; 10. and the second electric quantity collection module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, an embodiment of the present invention provides a dual-fan dual-power switching system, which includes a substation 1, a main power transformer 2, an auxiliary power transformer 8, a main fan unit 3, an auxiliary fan unit 7, a main fan starting module 4, an auxiliary fan starting module 6, and an automatic switching unit 5; the main transformer 2 and the auxiliary transformer 8 are respectively electrically connected with the substation 1 and can perform voltage reduction treatment on electricity transmitted by the substation 1; the main fan unit 3 is electrically connected with the main power converter 2, the main fan unit 3 comprises a main fan 31 and a main fan control module 32 which are electrically connected with each other, the main fan control module 32 is electrically connected with the automatic switching unit 5, and the main fan control module 32 can transmit an operation signal of the main fan 31 to the automatic switching unit 5; the automatic switching unit 5 is electrically connected with the main fan starting module 4 and can control the on-off of the main fan starting module 4; the main fan starting module 4 is electrically connected with the main fan unit 3 and controls the start and stop of the main fan 31; the auxiliary fan unit 7 is electrically connected with the auxiliary transformer 8, the auxiliary fan unit 7 comprises an auxiliary fan control module 71 and an auxiliary fan 72 which are electrically connected with each other, the auxiliary fan control module 71 is electrically connected with the automatic switching unit 5, and the auxiliary fan control module 71 can transmit an operation signal of the auxiliary fan 72 to the automatic switching unit 5; the automatic switching unit 5 is electrically connected with the auxiliary fan starting module 6 and can control the on-off of the auxiliary fan starting module 6; the auxiliary fan starting module 6 is electrically connected with the auxiliary fan unit 7 and controls the start and stop of the auxiliary fan 72.
The embodiment of the utility model provides a pair of two power switching systems of double fan divides two way circuits through electric substation 1 to carry out the step-down processing through main transformer 2 and vice transformer 8 to voltage respectively, then put through main fan unit 3 and vice fan unit 7 respectively, with main fan unit 3 and the equal electricity of vice fan unit 7 connect automatic switching unit 5, then automatic switching unit 5 starts main fan 31 or vice fan 72 through control main fan starting module 4 or vice fan starting module 6. The specific realization principle is as follows: the main transformer 2 and the auxiliary transformer 8 are simultaneously electrified and respectively transmit electricity to the main fan unit 3 and the auxiliary fan unit 7, the main fan unit 3 and the auxiliary fan unit 7 are both electrified, then the main fan control module 32 transmits an electrified signal of the main fan 31 to the automatic switching unit 5, the automatic switching unit 5 controls the main fan starting module 4 to start the main fan 31, and simultaneously transmits a starting signal to the automatic switching unit 5, at the moment, the automatic switching unit 5 controls the auxiliary fan starting module 6 to be closed, so that the normal operation of the main fan unit 3 is ensured, and the auxiliary fan unit 7 is closed; when the main fan unit 3 fails, the automatic switching unit 5 obtains a signal to start the auxiliary fan starting module 6, and the auxiliary fan unit 7 starts. Through the double-fan double-power-supply switching system adopting the scheme, the problem that the planned wind cut-off is caused by power failure or fan damage in the conventional fan system and gas is over-limit is solved effectively, and the normal operation of the fan system under the mine is realized.
As shown in fig. 2, the automatic switching unit 5 includes an automatic switching module 51 and a processor 52 electrically connected to each other; the processor 52 is electrically connected to the main blower control module 32 and the sub blower control module 71, respectively, and is capable of receiving and processing the signal transmitted by the main blower control module 32 or the sub blower control module 71, and transmitting the processing result to the automatic switching module 51; the automatic switching module 51 is electrically connected with the main fan starting module 4 and the auxiliary fan starting module 6 respectively, and can control the on-off of the main fan starting module 4 or the auxiliary fan starting module 6.
In this embodiment, specifically, the automatic switching unit 5 includes an automatic switching module 51 and a processor 52 electrically connected to each other, the main fan control module 32 and the sub-fan control module 71 are respectively electrically connected to the processor 52 of the automatic switching unit 5, the processor 52 analyzes and processes signals transmitted from the main fan control module 32 and the sub-fan control module 71, and transmits a processed result to the automatic switching module 51, when the automatic switching module 51 obtains a signal that the main fan unit 3 is normally powered on and normally operates, the automatic switching module 51 controls the main fan starting module 4 to be powered on, the main fan unit 3 is normally started, and meanwhile, the automatic switching module 51 controls the sub-fan starting module 6 to be powered off, and the sub-fan unit 7 stops operating. On the contrary, when the main fan unit 3 fails, the automatic switching module 51 controls the auxiliary fan starting module 6 to be powered on, so as to start the auxiliary fan unit 7, and ensure the normal operation of the downhole fan.
As shown in fig. 3, a first power collection module 9 is further included; first electric quantity collection module 9 sets up on the connecting line between main electrical apparatus 2 and the main fan unit 3 to the automatic switch-over unit 5 is connected to the electricity, and first electric quantity collection module 9 is used for monitoring the voltage of main fan unit 3, and can transmit the voltage information transmission of main fan unit 3 to automatic switch-over unit 5.
In this embodiment, a first electric quantity collecting module 9 is disposed on a connection line between the main power converter 2 and the main fan unit 3, and the first electric quantity collecting module 9 is electrically connected to the automatic switching unit 5. Specifically, the first electric quantity collection module 9 is electrically connected with the processor 52, and the processor 52 receives a voltage signal of the circuit of the main fan unit 3 detected by the first electric quantity collection module 9 and processes the signal and then transmits the signal to the automatic switching module 51, so that the voltage condition of the circuit of the main fan unit 3 can be sensed quickly. When the processor 52 does not receive the voltage condition of the circuit of the main fan unit 3, that is, the circuit of the main fan unit 3 fails, the automatic switching module 51 controls the auxiliary fan starting module 6 to be powered on, the auxiliary fan unit 7 is started, and the auxiliary fan 72 operates, so that the normal operation of the fan system under the mine is ensured.
As shown in fig. 3, a second power collection module 10 is further included; the second electric quantity collection module 10 is disposed on a connection line between the auxiliary power converter 8 and the auxiliary fan unit 7 and electrically connected to the automatic switching unit 5, and the second electric quantity collection module 10 is configured to monitor a voltage of the auxiliary fan unit 7 and transmit voltage information of the auxiliary fan unit 7 to the automatic switching unit 5.
In this embodiment, a second power collecting module 10 is provided on a connection line between the sub-converter 8 and the sub-fan unit 7, and the second power collecting module 10 is electrically connected to the automatic switching unit 5. Specifically, the second electric quantity collection module 10 is electrically connected with the processor 52, and the processor 52 receives a voltage signal of the circuit connected with the auxiliary fan unit 7 and detected by the second electric quantity collection module 10, processes the voltage signal and transmits the processed voltage signal to the automatic switching module 51, so that the voltage condition of the circuit connected with the auxiliary fan unit 7 can be sensed quickly. When the processor 52 does not receive the voltage condition of the circuit of the auxiliary fan unit 7, that is, the circuit of the auxiliary fan unit 7 fails, the automatic switching module 51 controls the main fan starting module 4 to be powered on, the main fan unit 3 is started, and the main fan 31 runs, so that the normal running of the fan system under the mine is ensured.
As shown in FIG. 4, the main fan start module 4 includes a main fan starter 41 and a first current sensor 42; the first current sensor 42 is connected in parallel to both ends of the main fan starter 41, and then connected in series with the automatic switching unit 5, for transmitting a current signal at both ends of the main fan starter 41 to the automatic switching unit 5.
In this embodiment, the main fan starting module 4 includes a main fan starter 41 and a first current sensor 42 connected in parallel to both ends of the main fan starter 41, the first current sensor 42 is electrically connected to the automatic switching unit 5, and the specific first current sensor 42 is electrically connected to the automatic switching module 51. So design, detect the current information at main fan starter 41 both ends through first current sensor 42, can be convenient for detect main fan starter 41 and whether break down, when automatic switch-over module 51 does not receive the current signal of first current sensor 42 transmission, it is that main fan starter 41 breaks down promptly, main fan unit 3 circular telegram at this moment is normal, but unable normal start, it is unable automatic normal start to be the main fan unit 3 circuit promptly, automatic switch-over module 51 controls vice fan starting module 6 (specifically vice fan starter 61) and switches on, start vice fan unit 7, vice fan 72 operates, and then guarantee the normal operating of ventilation system in the pit.
As shown in fig. 4, the sub-blower starting module 6 includes a sub-blower starter 61 and a second current sensor 62; the second current sensor 62 is connected in parallel to both ends of the sub-blower starting module 6, and then connected in series with the automatic switching unit 5, for transmitting a current signal between both ends of the sub-blower starter 61 to the automatic switching unit 5.
In this embodiment, the auxiliary blower start module 6 includes an auxiliary blower starter 61 and a second current sensor 62 connected in parallel to both ends of the auxiliary blower starter 61, the second current sensor 62 is electrically connected to the automatic switching unit 5, and the specific second current sensor 62 is electrically connected to the automatic switching module 51. So design, detect the current information at vice fan starter 61 both ends through second current sensor 62, can be convenient for detect whether vice fan starter 61 breaks down, when automatic switch-over module 51 does not receive the current signal of second current sensor 62 transmission, be promptly that vice fan starter 61 breaks down, vice fan unit 7 circular telegram this moment is normal, but unable normal start, it is unable automatic normal start to be promptly vice fan unit 7 circuit, automatic switch-over module 51 controls main fan starter 41 and switches on, start main fan unit 3, main fan 31 operates, and then guarantee the normal operating of ventilation system in the pit.
As an embodiment of this example, the main transformer 2 and the sub-transformer 8 both reduce the voltage of the substation 1 to 660V.
In this embodiment, two paths of voltages of the substation 1 are respectively reduced to 660V through the main transformer 2 and the auxiliary transformer 8, and the flowing current is reduced to 100A, so that the current flowing through the fan and the voltage leading to the fan are both within a rated standard value, and the fan is prevented from being burned out or incapable of working normally due to insufficient power.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.
Claims (7)
1. A double-fan double-power-supply switching system is characterized by comprising a substation (1), a main transformer (2), an auxiliary transformer (8), a main fan unit (3), an auxiliary fan unit (7), a main fan starting module (4), an auxiliary fan starting module (6) and an automatic switching unit (5);
the main transformer (2) and the auxiliary transformer (8) are respectively electrically connected with the substation (1) and can perform voltage reduction treatment on electricity transmitted by the substation (1);
the main fan unit (3) is electrically connected with the main power transformer (2), the main fan unit (3) comprises a main fan (31) and a main fan control module (32) which are electrically connected with each other, the main fan control module (32) is electrically connected with the automatic switching unit (5), and the main fan control module (32) can transmit the operation signal of the main fan (31) to the automatic switching unit (5);
the automatic switching unit (5) is electrically connected with the main fan starting module (4) and can control the on-off of the main fan starting module (4);
the main fan starting module (4) is electrically connected with the main fan unit (3) and controls the start and stop of the main fan (31);
the auxiliary fan unit (7) is electrically connected with the auxiliary transformer (8), the auxiliary fan unit (7) comprises an auxiliary fan control module (71) and an auxiliary fan (72) which are electrically connected with each other, the auxiliary fan control module (71) is electrically connected with the automatic switching unit (5), and the auxiliary fan control module (71) can transmit an operation signal of the auxiliary fan (72) to the automatic switching unit (5);
the automatic switching unit (5) is electrically connected with the auxiliary fan starting module (6) and can control the on-off of the auxiliary fan starting module (6);
the auxiliary fan starting module (6) is electrically connected with the auxiliary fan unit (7) and controls the starting and stopping of the auxiliary fan (72).
2. The dual-fan dual-power-supply switching system of claim 1, wherein the automatic switching unit (5) comprises an automatic switching module (51) and a processor (52) electrically connected to each other;
the processor (52) is respectively electrically connected with the main fan control module (32) and the auxiliary fan control module (71), can receive and process signals transmitted by the main fan control module (32) or the auxiliary fan control module (71), and transmits the processing result to the automatic switching module (51);
the automatic switching module (51) is respectively and electrically connected with the main fan starting module (4) and the auxiliary fan starting module (6) and can control the on-off of the main fan starting module (4) or the auxiliary fan starting module (6).
3. The dual-fan dual-power switching system of claim 1, further comprising a first charge collection module (9);
the first electric quantity collecting module (9) is arranged on a connecting line between the main power transformer (2) and the main fan unit (3) and electrically connected with the automatic switching unit (5), and the first electric quantity collecting module (9) is used for monitoring the voltage of the main fan unit (3) and transmitting the voltage information of the main fan unit (3) to the automatic switching unit (5).
4. The dual-fan dual-power switching system of claim 3, further comprising a second charge collection module (10);
the second electric quantity collection module (10) is arranged on a connecting line between the auxiliary power converter (8) and the auxiliary fan unit (7) and is electrically connected with the automatic switching unit (5), and the second electric quantity collection module (10) is used for monitoring the voltage of the auxiliary fan unit (7) and transmitting the voltage information of the auxiliary fan unit (7) to the automatic switching unit (5).
5. The dual-fan dual-power-supply switching system of claim 1, wherein the main fan start module (4) comprises a main fan starter (41) and a first current sensor (42);
the first current sensor (42) is connected in parallel to two ends of the main fan starter (41) and then connected in series with the automatic switching unit (5) and is used for transmitting current signals at two ends of the main fan starter (41) to the automatic switching unit (5).
6. The dual-fan dual-power switching system of claim 5, wherein the secondary fan start module (6) comprises a secondary fan starter (61) and a second current sensor (62);
the second current sensor (62) is connected in parallel to two ends of the auxiliary fan starting module (6) and then connected in series with the automatic switching unit (5) and is used for transmitting current signals at two ends of the auxiliary fan starter (61) to the automatic switching unit (5).
7. The dual-fan dual-power-supply switching system of claim 1, wherein the main transformer (2) and the auxiliary transformer (8) both reduce the voltage of the power substation (1) to 660V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121046068.5U CN215256285U (en) | 2021-05-17 | 2021-05-17 | Dual-power switching system of double fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121046068.5U CN215256285U (en) | 2021-05-17 | 2021-05-17 | Dual-power switching system of double fans |
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| Publication Number | Publication Date |
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| CN215256285U true CN215256285U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121046068.5U Active CN215256285U (en) | 2021-05-17 | 2021-05-17 | Dual-power switching system of double fans |
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| CN (1) | CN215256285U (en) |
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- 2021-05-17 CN CN202121046068.5U patent/CN215256285U/en active Active
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