CN212407106U - Intelligent fan with SF6 gas monitoring function - Google Patents
Intelligent fan with SF6 gas monitoring function Download PDFInfo
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- CN212407106U CN212407106U CN202020526011.4U CN202020526011U CN212407106U CN 212407106 U CN212407106 U CN 212407106U CN 202020526011 U CN202020526011 U CN 202020526011U CN 212407106 U CN212407106 U CN 212407106U
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Abstract
The utility model provides an intelligent fan with SF6 gas monitoring function, which relates to the technical field of fans for transformer substations, and comprises a fan, a fan main loop, a fan control loop and an SF6 sensor; the fan main loop is connected with the fan control loop; the SF6 sensor is arranged on the fan; the fan control loop is connected with the fan main loop, and the fan main loop controls the starting and stopping of the fan. Utilize the utility model provides a fan control box can realize that the manual of fan opens and stops and open the automation based on SF6 gas concentration and open and stop, has improved fan system's among the prior art reliability and security.
Description
Technical Field
The utility model belongs to the technical field of the technique of monitoring fan and specifically relates to an intelligent fan that possesses gaseous monitoring function of SF6 is related to.
Background
SF6 gas is largely used as an insulating or arc-extinguishing medium in switchgear in substations. Although the SF6 gas is non-toxic, the SF6 gas can produce toxic products when high-temperature electric arcs act, and the safety of operation and maintenance staff is threatened. Meanwhile, the concentration of SF6 gas is prevented from rising to an anoxic level in a substation working site, and personnel are prevented from suffocating. Therefore, the SF6 gas density of an indoor workplace needs to be monitored, when the SF6 gas density exceeds the standard, a fan of the power distribution device room needs to be started, and after the SF6 gas concentration is qualified, the power distribution device room can be accessed for maintenance.
At present, SF6 online monitoring devices are mostly adopted in substations to realize the monitoring of the indoor SF6 gas concentration of a power distribution device, and a traditional fan is used for exhausting air. And (3) connecting a signal of the SF6 online monitoring device into a fan control loop to realize starting and stopping of the fan. However, this implementation has the disadvantages of requiring the installation of an additional SF6 gas monitoring device, complicated wiring of the fan control loop, and the like. The total station is only provided with one set of SF6 online monitoring device, and SF6 online monitoring device host machine is in fault, so that the total station loses SF6 gas monitoring. If SF6 gas leaks, the operation personnel enter the distribution equipment room, and serious consequences such as poisoning or suffocation can be caused. Therefore, a highly reliable intelligent fan with SF6 gas monitoring and exhaust functions needs to be researched.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an intelligent fan that possesses gaseous monitoring function of SF6 to alleviate and provide a high reliability, possess the gaseous monitoring of SF6 and the intelligent fan of function of airing exhaust.
The utility model provides an intelligent fan that possesses gaseous monitoring function of SF6, include:
the system comprises a fan, a fan main loop, a fan control loop and an SF6 sensor;
the fan main loop is connected with the fan control loop;
the SF6 sensor is mounted on the fan;
the fan control loop is connected with the fan main loop, and the fan main loop controls the starting and stopping of the fan.
Preferably, the fan main loop comprises a fan main loop air switch QF, a thermocouple relay KH and a fan M, and the fan main loop is connected with the fan control loop;
the fan main loop air switch QF, the thermocouple relay KH and the fan M are sequentially connected;
the thermocouple relay KH is provided with a thermocouple relay auxiliary contact KH 1;
the fan control loop comprises a manual start switch SF, a manual stop switch SS, a manual stop automatic handle SA, a contactor, an SF6 sensor stop signal action switch Y1, an SF6 sensor start signal action switch Y2 and a relay,
the contactor comprises a contactor coil KM, a first auxiliary contact KM1 and a second auxiliary contact KM2, wherein the first auxiliary contact KM1 and the second auxiliary contact KM2 are both normally open contacts, one end of the first auxiliary contact KM1 is connected with an external power supply, and the other end of the first auxiliary contact KM1 is connected with a fan;
one end of the contactor coil KM is connected with one end of the thermocouple relay auxiliary contact KH1, the other end of the thermocouple relay auxiliary contact KH1 is connected with one end of the manual start switch SF, the other end of the manual start switch SF is connected with one end of the manual stop switch SS, and the other end of the manual stop switch SS is connected with the external power supply through the manual stop automatic handle SA;
the relay comprises a relay coil KA, a third auxiliary contact KA1 and a fourth auxiliary contact KA 2;
the other end of the thermocouple relay auxiliary contact KH1 is connected with one end of the second auxiliary contact KM2, the other end of the second auxiliary contact KM2 is connected with one end of the fourth auxiliary contact KA2, and the other end of the fourth auxiliary contact KA2 is connected with an external power supply through a manual stop automatic handle SA; one end of the relay coil KA is grounded, the other end of the relay coil KA is connected with one end of the SF6 sensor starting signal action switch Y2, the other end of the SF6 sensor starting signal action switch Y2 is connected with one end of the SF6 sensor stopping signal action switch Y1, and the other end of the SF6 sensor stopping signal action switch Y1 is connected with an external power supply; one end of the third auxiliary contact KA1 is connected with one end of the SF6 sensor start signal action switch Y2, and the other end of the third auxiliary contact KA1 is connected with the other end of the SF6 sensor start signal action switch Y2.
Preferably, the thermocouple relay is of a model nr2, and the contactor is of a model cj 20.
The embodiment of the utility model provides a following beneficial effect has been brought: the utility model provides an intelligent fan with SF6 gas monitoring function, which relates to the technical field of fans for transformer substations, and comprises a fan, a fan main loop, a fan control loop and an SF6 sensor; the fan main loop is connected with the fan control loop; the SF6 sensor is arranged on the fan; the fan control loop is connected with the fan main loop, and the fan main loop controls the starting and stopping of the fan. Utilize the utility model provides a fan control box can realize that the manual of fan opens and stops and open the automation based on SF6 gas concentration and open and stop, has improved fan system's among the prior art reliability and security.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described 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 structural diagram of an intelligent fan with SF6 gas monitoring function according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a fan control loop schematic diagram of the intelligent fan that possesses the gaseous monitoring function of SF 6.
Icon: 1-SF 6 sensor; 2, a fan; and 3, a fan control loop.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. 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.
At present, SF6 online monitoring devices are mostly adopted in substations to realize the monitoring of the indoor SF6 gas concentration of a power distribution device, and a traditional fan is used for exhausting air. And (3) connecting a signal of the SF6 online monitoring device into a fan control loop to realize starting and stopping of the fan. However, this kind of implementation mode exists and needs to install extra SF6 gas monitoring device, and fan control circuit wiring is complicated etc. not enough, and based on this, the embodiment of the utility model provides a pair of possess SF6 gas monitoring function's intelligent fan can improve the security and the reliability of fan among the prior art.
For the convenience of understanding the present embodiment, first, the intelligent fan with SF6 gas monitoring function disclosed in the embodiments of the present invention is described in detail.
The first embodiment is as follows:
combine fig. 1 and fig. 2 to show, the utility model provides an intelligent fan that possesses gaseous monitoring function of SF6, include:
the system comprises a fan 2, a fan main loop, a fan control loop 3 and an SF6 sensor 1;
the fan main loop is connected with the fan control loop 3;
the SF6 sensor 1 is arranged on the fan 2;
the fan control loop 3 controls the fan 2 to control the main loop to be connected with the fan 2 and controls the start and stop of the fan 2.
Preferably, the fan main loop comprises a fan main loop air switch QF, a thermocouple relay KH and a fan M; the fan main loop is connected with the fan control loop 3;
the fan main loop air switch QF, the thermocouple relay KH and the fan M are sequentially connected;
the thermocouple relay KH is provided with a thermocouple relay auxiliary contact KH 1;
the fan control circuit 3 comprises a manual start switch SF, a manual stop switch SS, a manual stop automatic handle SA, a contactor, an SF6 sensor 1 stop signal action switch Y1, an SF6 sensor 1 start signal action switch Y2 and a relay,
the contactor comprises a contactor coil KM, a first auxiliary contact KM1 and a second auxiliary contact KM2, wherein the first auxiliary contact KM1 and the second auxiliary contact KM2 are both normally open contacts, one end of the first auxiliary contact KM1 is connected with an external power supply, and the other end of the first auxiliary contact KM1 is connected with the fan 2;
one end of the contactor coil KM is connected with one end of the thermocouple relay auxiliary contact KH1, the other end of the thermocouple relay auxiliary contact KH1 is connected with one end of the manual start switch SF, the other end of the manual start switch SF is connected with one end of the manual stop switch SS, and the other end of the manual stop switch SS is connected with the external power supply through the manual stop automatic handle SA;
the relay comprises a relay coil KA, a third auxiliary contact KA1 and a fourth auxiliary contact KA 2;
the other end of the thermocouple relay auxiliary contact KH1 is connected with one end of the second auxiliary contact KM2, the other end of the second auxiliary contact KM2 is connected with one end of the fourth auxiliary contact KA2, and the other end of the fourth auxiliary contact KA2 is connected with an external power supply through a manual stop automatic handle SA; one end of the relay coil KA is grounded, the other end of the relay coil KA is connected with one end of the SF6 sensor starting signal action switch Y2, the other end of the SF6 sensor starting signal action switch Y2 is connected with one end of the SF6 sensor stopping signal action switch Y1, and the other end of the SF6 sensor stopping signal action switch Y1 is connected with an external power supply; one end of the third auxiliary contact KA1 is connected with one end of the SF6 sensor start signal action switch Y2, and the other end of the third auxiliary contact KA1 is connected with the other end of the SF6 sensor start signal action switch Y2.
Further, the third auxiliary contact KA1 is connected in parallel to two ends of the SF6 sensor start signal action switch Y2, and the second auxiliary contact KM2 is connected in parallel to two ends of the manual start switch SF; when the manual start switch SF is pressed, the coil KM of the contactor is electrified, the second auxiliary contact KM2 is attracted, and therefore self-locking of the circuit is achieved;
preferably, the thermocouple relay is of a model nr2, and the contactor is of a model cj 20.
Example two:
the embodiment of the utility model provides a two pairs of embodiment one provide a working method that possesses SF6 gas monitoring function's intelligent fan has expounded:
specifically, when the fan 2 works normally, the main loop air switch QF of the fan 2 is located at a switch-on position to provide power for the fan 2;
when the fan is started manually, the manual start switch SF is pressed, the coil KM of the contactor is electrified, the second contact group KM2 of the fan 2 is controlled to be closed, and the fan 2 is started;
when the fan is manually stopped, the stop switch SS is pressed, the coil KM of the contactor loses power, the second contact group KM2 of the fan 2 is controlled to be disconnected, and the fan 2 stops working;
when the fan 2 breaks down, the thermocouple relay KH is started, the auxiliary contact KH1 of the thermocouple relay is disconnected, the coil KM of the contactor loses power, the second contact group KM2 of the fan 2 is controlled to be disconnected, and the fan 2 stops working;
when the gas concentration of SF6 exceeds the threshold value, the starting signal action switch Y2 is closed by an instruction sent by an upper computer, the relay coil KA is electrified, the third contact group KA1 is closed to form a self-holding loop, meanwhile, the fourth contact group KA2 is attracted, the relay coil KM is electrified, the fan 2 works,
when the gas concentration of SF6 is lower than the threshold value, stop signal action switch Y1 obtains the instruction disconnection that the host computer sent, relay coil KA loses the electricity, third contact group KA1 is in normally open state, simultaneously fourth contact group KA2 disconnection, contactor coil KM loses the electricity, fan 2 stops working.
The utility model discloses has following effect:
1) the manual starting and stopping of the fan 2 are realized by the connection of the manual starting switch, the manual stopping switch and the relay;
2) the concentration of SF6 is monitored by the SF6 sensor 1, and the start and stop of the fan 22 are controlled according to the sensing data.
Unless specifically stated otherwise, the relative steps, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 present invention can be understood in specific cases to those skilled in the art.
In the description 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, and are only for convenience of description and simplification of 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides an intelligent fan that possesses SF6 gas monitoring function which characterized in that includes:
the system comprises a fan, a fan main loop, a fan control loop and an SF6 sensor;
the fan main loop is connected with the fan control loop;
the SF6 sensor is mounted on the fan;
the fan control loop is connected with the fan main loop, and the fan main loop controls the starting and stopping of the fan.
2. The intelligent fan according to claim 1, wherein the fan main loop comprises a fan main loop air switch QF, a thermocouple relay KH and a fan M, and the fan main loop is connected with the fan control loop;
the fan main loop air switch QF, the thermocouple relay KH and the fan M are sequentially connected
The thermocouple relay KH is provided with a thermocouple relay auxiliary contact KH 1;
the fan control loop comprises a manual start switch SF, a manual stop switch SS, a manual stop automatic handle SA, a contactor, an SF6 sensor stop signal action switch Y1, an SF6 sensor start signal action switch Y2 and a relay,
the contactor comprises a contactor coil KM, a first auxiliary contact KM1 and a second auxiliary contact KM2, wherein the first auxiliary contact KM1 and the second auxiliary contact KM2 are both normally open contacts, one end of the first auxiliary contact KM1 is connected with an external power supply, and the other end of the first auxiliary contact KM1 is connected with a fan;
one end of the contactor coil KM is connected with one end of the thermocouple relay auxiliary contact KH1, the other end of the thermocouple relay auxiliary contact KH1 is connected with one end of the manual start switch SF, the other end of the manual start switch SF is connected with one end of the manual stop switch SS, and the other end of the manual stop switch SS is connected with the external power supply through the manual stop automatic handle SA;
the relay comprises a relay coil KA, a third auxiliary contact KA1 and a fourth auxiliary contact KA 2;
the other end of the thermocouple relay auxiliary contact KH1 is connected with one end of the second auxiliary contact KM2, the other end of the second auxiliary contact KM2 is connected with one end of the fourth auxiliary contact KA2, and the other end of the fourth auxiliary contact KA2 is connected with an external power supply through a manual stop automatic handle SA; one end of the relay coil KA is grounded, the other end of the relay coil KA is connected with one end of the SF6 sensor starting signal action switch Y2, the other end of the SF6 sensor starting signal action switch Y2 is connected with one end of the SF6 sensor stopping signal action switch Y1, and the other end of the SF6 sensor stopping signal action switch Y1 is connected with an external power supply; one end of the third auxiliary contact KA1 is connected with one end of the SF6 sensor start signal action switch Y2, and the other end of the third auxiliary contact KA1 is connected with the other end of the SF6 sensor start signal action switch Y2.
3. The intelligent wind turbine of claim 2, the thermocouple relay model nr2, the contactor model being cj 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526011.4U CN212407106U (en) | 2020-04-12 | 2020-04-12 | Intelligent fan with SF6 gas monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526011.4U CN212407106U (en) | 2020-04-12 | 2020-04-12 | Intelligent fan with SF6 gas monitoring function |
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| Publication Number | Publication Date |
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| CN212407106U true CN212407106U (en) | 2021-01-26 |
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| CN202020526011.4U Active CN212407106U (en) | 2020-04-12 | 2020-04-12 | Intelligent fan with SF6 gas monitoring function |
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| CN (1) | CN212407106U (en) |
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Effective date of registration: 20230926 Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: STATE GRID TIANJIN ELECTRIC POWER Co. Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: State Grid Tianjin Electric Power Survey and Design Consulting Co.,Ltd. Address before: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee before: STATE GRID TIANJIN ELECTRIC POWER Co. Patentee before: STATE GRID CORPORATION OF CHINA |