KR101681064B1 - Leak sensing device of fire pump and fire hose using electric of apartment house - Google Patents

Abstract

The present invention relates to a water leak sensing device of a fire pump and a fire hose using the electricity of an apartment house and, more specifically, to a water leak sensing device of a fire pump and a fire hose using the electricity of an apartment house, which gives an alarm by sensing a water leak in a mechanical seal for sealing and supporting the surrounding of an impeller shaft in a fire pump assembly, and enables a rapid response while giving an accurate alarm by sensing a water leak even in a state that a certain amount of water required for operating a water leak detection unit is not collected in a collecting channel. The water leak sensing device of a fire pump and a fire hose using the electricity of an apartment house comprises: a water leak detection unit which is installed in a collecting channel and generates an electrical signal; and a switching unit which is turned on by receiving the signal generated from the water leak detection unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a leak detection apparatus for a fire pump and a hose,

[0001] The present invention relates to a fire pump and a leakage alarm device for a fire pump using electricity in a residential house in the field of fire fighting technology, and more particularly to a fire pump for detecting leakage of a mechanical seal sealing and supporting around an impeller shaft in a fire pump assembly In addition, it is also possible to detect the leakage of water even when a certain amount of water required for operation of the leakage detection means is not collected by the catching hole, To a fire pump and a leakage alarm device of a hose.

The fire pump assembly, which is mainly installed in fire engines or building fire fighting equipment, has the function of quickly absorbing water and watering at high pressure.

Since the inside of the fire pump is filled with air at the beginning of operation, it is impossible to water the water at a high pressure immediately, so the air inside the fire pump is depressurized by a priming device using a vacuum pump to shorten the operation time.

In addition, the fire pump is a device that radiates water impinged by the impeller at high pressure, so if leakage occurs anywhere around the pump shaft, it disturbs the vacuum operation by the vacuum pump at the beginning of operation, And the radial pressure of water is lowered to cause failure of the fire suppression. Therefore, a mechanical seal around the pump shaft of the fire pump is used, which has good airtightness and is cooled by water.

1 is a partial sectional view showing a structure of a conventional fire pump assembly. The fire pump assembly is composed of a fire pump 2, a vacuum pump 4, and a gear train 6 for transmitting power to the fire pump 2 and the vacuum pump 4.

The input shaft 8 of the gear train 6 is directly connected to the impeller shaft 12 of the fire pump 2 via the drive shaft 10 and part of the power is transmitted through the drive gear 14 to the vacuum pump 4, As shown in FIG.

The impeller 16 provided inside the fire pump 2 draws water through the absorption port 18 and again radiates the high pressure through the water hole 20 and the regulator 22.

The high water pressure generated by the high speed rotation of the impeller 16 in the above process causes leakage of water to the periphery of the impeller shaft 12. [

Since the impeller shaft 12 is pivotally supported by the mechanical seal 24 in the fire pump 2, it exhibits a perfect sealing function to prevent leakage even under high pressure water pressure.

A leak alarm device for a fire pump assembly is disclosed in Korean Utility Model Registration No. 20-0450675 (Oct. 15, 2010) 'leak alarm device of a fire pump assembly', which solves some of these problems.

However, there is a problem in that the leak alarm device of the fire pump assembly according to the related art can not be noticed even if leakage occurs before the float is operated.

Korea Utility Model Registration No. 20-0450675 (Oct. 15, 2010) 'Leakage warning device of fire pump assembly'

It is an object of the present invention to provide a fire pump assembly capable of detecting an occurrence of leakage of a mechanical seal sealingly supporting the periphery of an impeller shaft so that an alarm can be made, A leak alarm of a fire pump and a hose using electricity of the apartment house for detecting water leaking even when a certain amount of water required for the operation of the detection means is not collected by the catcher, .

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a fire-fighting pump assembly for a fire-fighting pump, which is provided in a fire-fighting pump assembly in which an impeller shaft is hermetically supported by a mechanical seal, Leakage detecting means for generating electric signal by the water to be leaked; And a switching means for receiving a signal generated by the leakage detecting means through a wiring and turning on the switching means, and an alarm light and an alarm sound generator connected by the switching means and the extension wiring are turned on by the switching means, And the leakage detecting means is a fire pump of a fire pump and a leakage alarm of a hose which are arranged in a photocoupler composed of a light emitting portion and a light receiving portion and which emit an on and off signal by a float between them, Further comprising precision sensing means for sensing water leaking in a state in which a predetermined amount of water required for operation of the float is not collected by the catching hole, wherein the precision sensing means is provided in the catching hole, Detection sensor; An auxiliary wiring connected to the wiring and the extended wiring such that both ends are located before and after the switching means; An auxiliary switching means connected to the auxiliary wiring; And a controller for controlling the auxiliary switching means to be turned on in response to a moisture sensing signal of the moisture sensor, wherein the auxiliary switching means is connected in parallel with the wiring and the extension wiring, Wherein the alarm light and the alarm sound generator are configured such that an electrical signal of the leakage detection means according to the leakage detection signal is smoothly transmitted to the alarm light and the alarm sound generator, A leak alarm device for a fire pump and a hose using electricity in a multi-family house, characterized in that brightness and sound are enhanced when the alarm is detected.

According to the present invention, it is possible to detect a leakage of a mechanical seal sealingly supporting the periphery of an impeller shaft in a fire pump assembly, so that quick response through leak alarm can be achieved.

In addition, since a predetermined amount of water necessary for the operation of the leakage detecting means can be detected even in a state where the water is not collected by the catching hole, it is possible to make a quick response with a more accurate alarm.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a partial cross-sectional view showing a general structure of a fire pump assembly.
FIG. 2 is a schematic view showing a leak alarm of a fire pump and a hose using electricity in a multi-unit house according to the present invention.
FIG. 3 is a cross-sectional view showing leakage detection means in a leakage alarm device of a fire pump and a hose using electricity in a multi-unit house according to the present invention.
And
FIG. 4 is a cross-sectional view illustrating a state in which a precision sensing means is provided in a leakage alarm device of a fire pump and a hose using electricity in a apartment house according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And should not be construed as limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

It should be understood that the embodiments according to the concept of the present invention are not limited to the particular mode of disclosure but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

The present invention uses the line registration utility model No. 0450675, which will be described later, as it is, and all the features of the apparatus configuration described below can be understood as those described in the registration utility model No. 0450675. [

However, according to the present invention, the leakage alarm device of the fire pump assembly of the structures disclosed in the above-mentioned Registration Utility Model No. 0450675 is replaced with a leakage alarm device of a fire pump and a hose using electricity of the apartment house, The structure for detecting water leaking even when a certain amount of water is not collected by the catcher and the operation explanation are further included, and this part is the most important constitutional feature.

Therefore, the device structure, characteristics, and operation relationship described below will be referred to as the above-mentioned registration utility model No. 0450675, and the configuration related to the main features of the present invention will be described in detail at the rear end.

2 to 3, the fire-fighting pump and the leakage alarm device of the hose using the electricity of the apartment house according to the present invention are installed in the vicinity of the outer side and the lower side of the mechanical seal 24 provided on the fire- And leakage water detecting means (26) attached thereto.

The position at which the water leakage detecting means 26 is installed is a portion around the portion where the gear train 6 is connected to the fire pump 2 and is not exposed to the outside.

It is preferable that the water collecting port 28 is formed at a portion where the water leakage detecting means 26 is installed so that the water leakage detecting means 26 can be detected by the water leakage detecting means 26 even in the case of a minute water leakage.

The detection signal of the leakage detection means 26 is connected to the switching means 31 through the wiring 30 led out to the outside so that the switching means 31 is turned on by the bias signal, The same warning light 35, and the alarm sound generator 36 using the in-vehicle speaker, thereby activating an alarm through light and sound.

The warning light 35 and the alarm sound generator 36 are connected to the switching means 31 by an extension wiring 33.

The switching means 31 may be a transistor, a thyristor, a switching IC, a switching module, or the like, which is turned on / off according to the presence or absence of a bias signal.

As the leakage detecting means 26, there can be used a photo coupler in which the light emitting portion 32 and the light receiving portion 34 are disposed in a confined space as shown in Fig. 2, and a signal is generated by the light sensing between the two .

A float 38 may be further disposed between the light emitting unit 32 and the light receiving unit 34 so that the float 38 is floated by water to change the light sensing action.

The light sensing between the light emitting portion 32 and the light receiving portion 34 may be performed using light having a short wavelength such as infrared rays or laser light.

4, the present invention includes precision sensing means (not shown) for sensing water leaking even when a predetermined amount of water required for the operation of the float 38 is not collected by the catching port 28 40 are further implemented.

The precise sensing means 40 may be configured to precisely and quickly respond to a late leak alarm caused by the fact that the float 38 is not operated until a certain amount of water is collected by the catch 28 do.

The precision sensing means 40 includes a moisture sensing sensor 41 provided in the water collecting port 28 for sensing moisture and a water sensing sensor 41 disposed at both ends of the water sensing sensor 41 before and after the switching means 31, An auxiliary switching means 43 connected to the auxiliary wiring 42 and an auxiliary switching means 43 connected to the auxiliary wiring 33 in accordance with a moisture sensing signal of the moisture sensing sensor 41. [ ) To be turned on.

The moisture sensor 41 is located in the catch 28 and may be disposed adjacent to the mechanical seal 24 or on the bottom surface of the float 38.

Accordingly, the moisture sensor 41 can directly sense a small amount of water leaking into the catchment 28.

The auxiliary wiring 42 has both ends and is connected in parallel to the power distribution 30 and the extension wiring 33 while both ends of the auxiliary wiring 42 are connected to the wiring 30 and the extension wiring 33.

That is, the auxiliary wiring 42 is connected to the power distribution 30 so that one end thereof is positioned between the leakage detecting means 26 and the switching means 31, and the other end is connected to the switching means 31 and the warning light Is connected to the extended distribution (33) to be positioned between the alarm sound generator (35) and the alarm sound generator (36).

The auxiliary switching means 43 is connected between both ends of the auxiliary wiring 42 and is turned on under the control of the control unit 44.

The control unit 44 may be connected to the moisture sensor 41 in a wired or wireless manner so that the auxiliary switching unit 43 is turned on in response to moisture detection of the moisture sensor 41, do.

An alarm is activated by the alarm light 35 and the alarm sound generator 36 according to the turn-on of the auxiliary switching means 43. [

When the float 38 is activated and the switching means 31 is turned on, the alarm light 35 and the alarm sound generator 36 are turned on by the precision It is preferable to increase the alarm level as the brightness and sound become stronger than when the leak detection by the detection means 40 is performed.

This can be achieved by various methods. For example, the brightness and sound intensity of the warning light 35 and the alarm sound generator 36 can be adjusted under the control of the controller 44.

This allows the operator to take appropriate measures by separating into confirmation, inspection, maintenance, and repair work.

The auxiliary switching means 43 is connected in parallel to the wiring 30 and the extension wiring 33 and is connected to the leakage detecting means 26 (26) in accordance with an inoperable state due to failure, ) Can be smoothly transmitted to the warning light (35) and the alarm sound generator (36).

The precision sensing means 40 may further include a temperature sensor 45 for detecting leakage of water through a temperature change of the water collection port 28 due to the water leaking into the water collection port 28.

The control unit 44 may be connected to the temperature sensor 45 in a wired or wireless manner and the auxiliary switching unit 43 is turned on in response to the temperature detection of the temperature sensor 45.

For this, the controller 44 may set the temperature of the water.

Therefore, the leak alarm of the fire pump and the hose using the electric power of the apartment house according to the present invention can prevent the leakage of the fire pump and the lake through double monitoring through the leakage detection means 26 and the precision detection means 40 It is possible to smoothly perform the warning of the water.

2: Fire pump 6: Gear train
24: mechanical seal 26: leak detection means
28: Collector 30: Wiring
31: switching means 32:
33: extended wiring 34:
35: Alarm light 36: Alarm sound generator
38: Float 40: Precision sensing means
41: moisture sensor 42: auxiliary wiring
43: Auxiliary switching means 44:
45: Temperature sensor

Claims (1)

A leakage port which is provided in a fire pump assembly in which an impeller shaft is hermetically supported by a mechanical seal and which is installed in a collection port provided in a peripheral lower portion of the mechanical seal installed in a fire pump, Detection means; And
And switching means for receiving a signal generated by the leakage detecting means through a wiring and turning on the signal,
An alarm lamp and an alarm sound generator connected by the switching means and the extension wiring issue an alarm by the turn-on of the switching means,
The leakage detection means
A fire pump and a hose leakage alarm device using electric power of a dwelling house which is arranged as a photocoupler composed of a light emitting portion and a light receiving portion and which emits on and off signals by a float which floats between them,
Further comprising precision sensing means for sensing water leaking in a state in which a predetermined amount of water required for operation of the float is not collected by the catching hole,
Wherein the precision sensing means comprises:
A moisture sensor provided in the catcher and sensing moisture;
An auxiliary wiring connected to the wiring and the extended wiring such that both ends are located before and after the switching means;
An auxiliary switching means connected to the auxiliary wiring;
A temperature sensor for detecting leakage of the water through the catching hole due to water leaking through the catching hole; And
And a controller for controlling the auxiliary switching means to be turned on according to a detection signal of the moisture sensor and the temperature sensor,
Wherein the auxiliary switching means comprises:
The electric signal of the leakage detecting means is smoothly transmitted to the warning lamp and the alarm sound generator due to the inability of the switching means to be in operation while being connected in parallel with the wiring and the extension wiring,
Wherein the alarm light and the alarm sound generator include:
Wherein a brightness and a sound of the alarm detected by the leak detection of the leakage detection means are stronger than an alarm caused by the leakage detection of the precision detection means.

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