CN220443098U - Linkage logic module of transformer protection and fire-fighting equipment - Google Patents

Abstract

The utility model provides a transformer protection and fire-fighting equipment linkage logic module, which comprises: the signal acquisition unit is used for acquiring fire signals in the range of the transformer; the logic judging unit is used for receiving the fire signal and judging whether fire occurs in the range of the transformer according to the fire signal; and the action execution unit is used for linking the fire-fighting equipment when the fire disaster occurs in the range of the transformer. The utility model can rapidly and accurately judge whether the fire disaster happens or not and extinguish the fire disaster.

Description

Linkage logic module of transformer protection and fire-fighting equipment

Technical Field

The utility model relates to the technical field of transformer fire protection, in particular to a transformer protection and fire protection equipment linkage logic module.

Background

For the power system of a power plant, a transformer belongs to primary important equipment, in particular to SPV (Special Purpose Vehicle, special purpose entity) equipment in a nuclear power plant, namely equipment with single equipment failure which can directly cause reactor shutdown, power reduction and large fluctuation of power of the nuclear power plant. In a high-capacity unit, the oil-immersed transformer is adopted by the main transformer, the high-voltage standby transformer and the high-voltage factory transformer because the oil-immersed transformer has good insulativity and heat conductivity. Because oil insulation is adopted, once a fire disaster occurs, the fire disaster has high spreading speed and wide affected range.

In the application of the current power plant, the fire alarm detection means of the oil immersed transformer is a combination of a flame detector and a temperature sensing cable detector, when any one detector gives an alarm, the system gives an early warning to remind related personnel that a fire disaster is likely to happen, and when two detectors give an alarm at the same time, the fire-fighting equipment of the oil immersed transformer is linked to start for spraying and extinguishing.

However, the following problems still exist in the prior art:

1. because the flame detector is arranged beside the shell of the oil-immersed transformer, when a fire disaster is detected, the oil-immersed transformer is proved to have open fire and to be flared, and the fire disaster is formed initially at the moment, so that the fire disaster is not easy to extinguish in time.

2. Because a plurality of transformers are usually arranged around the oil immersed type transformer, the detection range of the flame detector can not cover other transformers, whether the detectors on other transformer equipment need to be programmed to the current transformer is not unified, and the problem of logic confusion exists.

Disclosure of Invention

The utility model provides a transformer protection and fire fighting equipment linkage logic module for solving the technical problems, which can rapidly and accurately judge whether fire disaster occurs or not and extinguish the fire disaster.

The technical scheme adopted by the utility model is as follows:

a transformer protection and fire protection equipment linkage logic module, comprising: the signal acquisition unit is used for acquiring fire signals in the range of the transformer; the logic judging unit is used for receiving the fire signal and judging whether fire occurs in the range of the transformer according to the fire signal; and the action execution unit is used for linking the fire-fighting equipment when the fire disaster occurs in the range of the transformer.

The signal acquisition unit comprises a temperature sensing cable detector, two flame detectors, a differential protection device and a heavy gas protection device.

The differential protection device further comprises a current detection device for detecting whether the current amount of the transformer is zero.

The fire-fighting equipment comprises deluge valve bank spraying equipment.

And if the temperature sensing cable detector and any flame detector send out fire signals, the logic judging unit judges that the fire occurs in the range of the transformer.

And if the two flame detectors send out fire signals, the logic judging unit judges that the fire occurs in the range of the transformer.

If the temperature sensing detector and the heavy gas protection device/differential protection device send out fire signals, the logic judgment unit judges that the fire disaster occurs in the range of the transformer.

If any flame detector and the heavy gas protection device/differential protection device send out fire signals, the logic judgment unit judges that the fire disaster occurs in the range of the transformer.

The utility model has the beneficial effects that:

according to the utility model, the signal acquisition unit is used for acquiring fire signals in the range of the transformer, the logic judgment unit is used for judging whether fire occurs in the range of the transformer, and finally the action execution unit is used for linking the fire fighting equipment to extinguish fire, so that whether fire occurs and fire can be extinguished quickly and accurately.

Drawings

Fig. 1 is a block diagram of a transformer protection and fire protection device linkage logic module according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

FIG. 1 is a schematic block diagram of a transformer protection and fire protection device linkage logic module according to an embodiment of the present utility model

As shown in fig. 1, a transformer protection and fire protection device linkage logic module according to an embodiment of the present utility model includes: the device comprises a signal acquisition unit 10, a logic judgment unit 20 and an action execution unit 30. The signal acquisition unit 10 is used for acquiring fire signals in the range of the transformer; the logic judging unit 20 is configured to receive the fire signal and judge whether a fire occurs in the range of the transformer according to the fire signal; the action execution unit 30 is used to link fire-fighting equipment in case of fire in the range of the transformer.

In one embodiment of the present utility model, the signal acquisition unit 10 includes one temperature sensing cable detector, two flame detectors, a differential protection device, and a heavy gas protection device. The heavy gas protection device can be used for enabling transformer oil in the oil immersed transformer to be heated and expanded to move towards the gas relay along the gradient if the oil immersed transformer fails, and the gas relay is captured by the transformer protection non-electric quantity protection device after being detected and acts on the tripping operation of the switch. The differential protection device can be used for various interphase short-circuit faults and single-phase turn-to-turn short-circuit faults which occur in the windings of the double-winding or three-winding transformer and on the leading-out wires of the windings, and acts on the tripping of the switch.

In one embodiment of the present utility model, the differential protection device may further include a current detection device, and the current detection device may be used to detect whether the current amount of the transformer is zero.

In one embodiment of the utility model, the fire protection device can comprise a deluge valve group spraying device, wherein the deluge valve group is a control valve group for controlling a fire water supply pipeline to automatically supply water, and can be opened in an electric, liquid, gas and mechanical mode.

In one embodiment of the present utility model, the logic judging unit 20 judges whether or not there is a fire occurrence can be classified into four cases: 1. if the temperature sensing cable detector and any flame detector send out fire signals, the logic judging unit 20 judges that the fire happens in the range of the transformer; 2. if two flame detectors emit fire signals, the logic judging unit 20 judges that the fire occurs in the range of the transformer; 3. if the temperature sensor and the heavy gas protection device/differential protection device send out fire signals, the logic judgment unit 20 judges that the fire occurs in the range of the transformer; 4. if any one of the flame detector and the heavy gas protection device/differential protection device emits a fire signal, the logic determination unit 20 determines that a fire occurs in the range of the transformer.

According to the transformer protection and fire-fighting equipment linkage logic module, the signal acquisition unit is used for acquiring fire signals in the range of the transformer, the logic judgment unit is used for judging whether fire occurs in the range of the transformer, and finally the action execution unit is used for linkage fire-fighting equipment to extinguish fire, so that whether fire occurs and fire can be extinguished quickly and accurately.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (3)

1. A transformer protection and fire protection equipment linkage logic module, characterized by comprising:

the signal acquisition unit is used for acquiring fire signals in the range of the transformer and comprises a temperature sensing cable detector, two flame detectors, a differential protection device and a heavy gas protection device;

the logic judging unit is used for receiving the fire signal and judging whether fire occurs in the range of the transformer according to the fire signal;

and the action execution unit is used for linking the fire-fighting equipment when the fire disaster occurs in the range of the transformer.

2. The transformer protection and fire protection device ganged logic module of claim 1, wherein the differential protection apparatus further comprises a current detection apparatus for detecting whether the amount of current of the transformer is zero.

3. The transformer protection and fire protection device linkage logic module of claim 1, wherein the fire protection device comprises a deluge valve block spray device.