CN210409297U

CN210409297U - Indoor fire extinguishing system of box-type transformer

Info

Publication number: CN210409297U
Application number: CN201921038536.7U
Authority: CN
Inventors: 王艺南; 蒋军腾; 张龙; 孙凯; 王国栋
Original assignee: SHANDONG TAIKAI KIOSK CO LTD
Current assignee: SHANDONG TAIKAI KIOSK CO LTD
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-28
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses an indoor fire extinguishing systems of box transformer, at the indoor suspension type dry powder fire extinguisher of installation of low-pressure chamber, the alarm is felt to the cigarette, measurement and control device etc, suspension type dry powder fire extinguisher, alarm and measurement and control device are not influenced by transformer operation status are felt to the cigarette, the utility model is suitable for an indoor fire extinguishing and alarm effect at the initial stage of starting a fire of box transformer, this kind of fire extinguishing systems have to the fire reaction rapidly, can effectively shorten from the time of starting a fire to putting out a fire, avoid the intensity of a fire to stretch the personal safety hidden danger that brings peripheral personnel and destroy to the pollution of all ring edge borders, reducible damage to the transformer simultaneously reduces the economic loss that the low-pressure chamber started a fire and brings, has.

Description

Indoor fire extinguishing system of box-type transformer

Technical Field

The utility model relates to a box transformer device, in particular to indoor fire extinguishing systems of box transformer.

Background

At present, box-type transformers widely applied to the fields of wind power generation and photovoltaic power generation adopt manual dry powder fire extinguishers as fire extinguishing devices, and mainly have the following problems:

1. the box-type transformer is far away from a transformer substation, fire suddenly occurs, the fire spread is fast, and manual dry powder extinguishers cannot extinguish fire in time.

2. The low-voltage chamber environment of box transformer is airtight, and components and parts are on fire and can lead to the interior temperature of low-voltage chamber to rise sharply, and fortune dimension personnel can't be close the room door, and during indoor burning, manual dry chemical fire extinguisher can't play a role.

3. The inside pressure relief valve of oil-immersed transformer oil tank is located the low-pressure chamber usually, and when pressure relief valve action often, can release combustible gas or transformer oil in the oil tank to the low-pressure chamber in, the indoor components and parts of low-pressure at this moment discharge and probably ignite it, initiate violent burning, make its low-pressure indoor pressure sharply rise, explode low-pressure chamber room door or top cap and fly, have serious potential safety hazard.

Disclosure of Invention

For solving the above-mentioned problem of current box transformer, the utility model provides an indoor fire extinguishing systems of box transformer, the technical scheme who adopts is:

the dry type dry powder fire extinguisher is characterized in that a UPS and an overhauling dry type transformer are respectively arranged on the left side and the right side of the low-voltage cabinet in the low-voltage chamber, a suspension type dry powder fire extinguisher is arranged right above the low-voltage cabinet and at the top in the low-voltage chamber, the upper port of the suspension type dry powder fire extinguisher is connected with the overhauling dry type transformer and the UPS in series, a three-phase lead is led out from a low-voltage sleeve of the transformer and connected with the primary side of the overhauling dry type transformer, each phase lead is connected with a knife-fuse switch, the secondary side of the overhauling dry type transformer is led out from a socket through a miniature circuit breaker, and the UPS is connected into the socket; the measuring and controlling device is installed on a panel right in front of the low-voltage cabinet, the knife fuse switch, the miniature circuit breaker, the socket and the smoke sensing alarm are integrated inside the low-voltage cabinet, the lower port of the UPS is respectively connected with the smoke sensing alarm, the suspension type dry powder fire extinguisher and the measuring and controlling device through the miniature circuit breaker, and the smoke sensing alarm, the suspension type dry powder fire extinguisher and the measuring and controlling device are connected in parallel.

Furthermore, the smoke alarm is arranged close to the suspension type dry powder fire extinguisher, so that smoke can be sensed quickly.

Furthermore, the number of the miniature circuit breakers is two, namely a miniature circuit breaker I and a miniature circuit breaker II.

Furthermore, miniature circuit breaker is located socket, smoke detector alarm, suspension type dry powder fire extinguisher and measurement and control device's last port respectively for overhaul and short-circuit protection usefulness.

Further, the knife-shaped fuse switch is positioned between the transformer and the maintenance dry-type transformer.

The utility model has the advantages that: the utility model discloses an indoor fire extinguishing systems of box transformer, at the indoor suspension type dry powder fire extinguisher of installation of low-pressure chamber, the alarm is felt to the cigarette, measurement and control device etc, suspension type dry powder fire extinguisher, alarm and measurement and control device are not influenced by transformer operation status are felt to the cigarette, the utility model is suitable for an indoor fire extinguishing and alarm effect at the initial stage of starting a fire of box transformer, this kind of fire extinguishing systems have to the fire reaction rapidly, can effectively shorten from the time of starting a fire to putting out a fire, avoid the intensity of a fire to stretch the personal safety hidden danger that brings peripheral personnel and destroy to the pollution of all ring edge borders, reducible damage to the transformer simultaneously reduces the economic loss that the low-pressure chamber started a fire and brings, has.

Drawings

FIG. 1 is a front view of the box-type transformer of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic diagram of the wiring of the present invention;

as shown in the figure, 1 knife fuse switch, 2 overhaul dry-type transformer, 3 miniature circuit breakers, 4 sockets, 5UPS, 6 smoke detector alarms, 7 suspension type dry powder extinguishers, 8 measurement and control devices, 9 low-voltage chamber, 10 high-voltage chamber, 11 transformer chamber, 12 low-voltage cabinet.

Detailed Description

As shown in the figure, the utility model discloses an indoor fire extinguishing systems of box transformer, including low-pressure chamber 9, hyperbaric chamber 10 and transformer room 11, one side of low-pressure chamber 9 is hyperbaric chamber 10, and the back of low-pressure chamber 9 is transformer room 11, transformer indoor location transformer, low-pressure chamber indoor location low-voltage cabinet 12, and in low-pressure chamber 9, UPS5 and maintenance dry-type transformer 2 are installed respectively to the left and right sides of low-voltage cabinet 12, just at low-pressure chamber indoor top installation suspension type dry powder fire extinguisher 7 directly over, are convenient for receive the signal action of starting a fire as early as possible. The upper port of the suspension type dry powder fire extinguisher 7 is connected with the dry type transformer 2 and the UPS5 in series, a low-voltage sleeve of the transformer is led out to form a three-phase lead to be connected with the primary side of the dry type transformer, each phase of lead is connected with a knife fuse switch, one phase of lead and a grounding wire of the secondary side of the dry type transformer are connected to the socket 4 through the miniature circuit breaker I and connected with the UPS5, the transformer supplies power when the transformer normally operates, and the dry type transformer converts the voltage into the use voltage of the suspension type dry powder fire extinguisher. When the transformer is abnormally tripped, the suspension type dry powder fire extinguisher can be powered by the UPS.

The measurement and control device 8 is installed on the panel right in front of the low-voltage cabinet, the fuse switch 1, the miniature circuit breaker 3, the socket 4 and the smoke sensing alarm 6 are integrated inside the low-voltage cabinet, the lower port of the UPS is respectively connected with the smoke sensing alarm, the suspension type dry powder fire extinguisher and the measurement and control device through the miniature circuit breaker II, and the alarm signal can be guaranteed to be fed back to the background monitoring system. The smoke detector alarm, the suspension type dry powder fire extinguisher and the measuring and controlling device are connected in parallel.

Furthermore, the smoke sensing alarm is arranged at a position close to the suspension type dry powder fire extinguisher, smoke can be sensed conveniently and rapidly, fire extinguishment can be realized at the initial stage of a fire disaster, the reaction is rapid, the fire extinguisher can still be started after the transformer is powered off, the safety and the reliability are realized, and the economic loss and the potential safety hazard caused by the follow-up fire disaster can be effectively reduced.

Furthermore, the number of the miniature circuit breakers is two, namely a miniature circuit breaker I and a miniature circuit breaker II. The miniature circuit breaker is respectively positioned at the upper ports of the socket, the smoke sensing alarm, the suspension type dry powder fire extinguisher and the measurement and control device and is used for maintenance and short circuit protection.

In this embodiment:

a suspension type dry powder fire extinguisher adopts the following models: FZC-APT 4/1.2; fire extinguishing measurement: 4+5%, and the pressure of 20-degree filling nitrogen is 1.2 MPa; the use temperature is as follows: -10 to + 50; fire extinguishing grade: 1a 34B; injection time: less than or equal to 5 s; operating temperature: 68 ℃.

The miniature circuit breaker adopts a DZ47-60 miniature circuit breaker;

the smoke alarm adopts a GST-GF-JTY9711 point type light-sensitive smoke and fire disaster detector;

the measurement and control device adopts a Wtop300 type intelligent monitoring unit;

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The indoor fire extinguishing system of the box-type transformer comprises a low-pressure chamber, a high-pressure chamber and a transformer chamber, wherein the high-pressure chamber is arranged on one side of the low-pressure chamber, the transformer chamber is arranged on the back of the low-pressure chamber, a transformer is arranged in the transformer chamber, and a low-voltage cabinet is arranged in the low-pressure chamber; the measuring and controlling device is installed on a panel right in front of the low-voltage cabinet, the knife fuse switch, the miniature circuit breaker, the socket and the smoke sensing alarm are integrated inside the low-voltage cabinet, the lower port of the UPS is respectively connected with the smoke sensing alarm, the suspension type dry powder fire extinguisher and the measuring and controlling device through the miniature circuit breaker, and the smoke sensing alarm, the suspension type dry powder fire extinguisher and the measuring and controlling device are connected in parallel.

2. The indoor fire extinguishing system of box transformer as claimed in claim 1, wherein the smoke sensing alarm is installed near the hanging dry chemical extinguisher for rapid sensing of smoke.

3. The indoor fire extinguishing system of box transformer as claimed in claim 1, wherein the micro circuit breakers are two, micro circuit breakers I and II.

4. The indoor fire extinguishing system of box transformer as claimed in claim 3, wherein the micro circuit breaker is located at the upper ports of the socket, the smoke detector alarm, the suspension type dry powder fire extinguisher and the measurement and control device respectively, for maintenance and short circuit protection.

5. The indoor fire suppression system for box transformer as recited in claim 1 wherein said knife switch is located between the transformer and the service dry transformer.