CN217211046U

CN217211046U - Fire pool overflow alarm device

Info

Publication number: CN217211046U
Application number: CN202122874863.XU
Authority: CN
Inventors: 杨高鹏; 杨韬; 杨洋; 穆健; 杨汝贵; 李仕洪; 吴永建; 方靖; 罗兴东; 张涛
Original assignee: Sinohydro Bureau 14 Co Ltd
Current assignee: Sinohydro Bureau 14 Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-08-16
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a fire pool overflow alarm device belongs to the well water system field of fire engineering in plumbing and fire control. The device includes the pipeline, pipe connector, elbow I, elbow II, the overflow mouth, the electron floater, normally closed ball valve, the outlet is constituteed, the fire control overflow pipe passes through pipe connector and is connected with the pipeline front end, the tail end of pipeline passes through pipe connector and is connected with elbow I, elbow I passes through pipe connector and is connected with elbow II, elbow I forms ascending shape with elbow II, II tails of elbow install the overflow mouth through pipe connector, the perpendicular downstream water outlet that installs in the pipeline middle section, install normally closed ball valve on the water outlet, the electron floater is installed to the pipeline top, and the signal output part of electron floater is connected with external monitored control system's signal input port. The utility model discloses a fire-fighting water pool overflow alarming function has reduced the potential safety hazard in fire pump room, and for traditional mode more swift, high-efficient, equipment factor of safety greatly improves.

Description

Fire pool overflow alarm device

Technical Field

The utility model belongs to plumbing and fire control field, specific theory relates to a fire pool overflow alarm device.

Background

In the aspects of controlling the liquid level of a compensation tank and alarming overflow, the existing products usually adopt a mode of a drop-in type liquid level transmitter or an electrode type liquid level meter. Both of these approaches have disadvantages.

The input type liquid level transmitter adopts a pressure-sensitive sensor to measure the static pressure of the position where the pressure-sensitive sensor is positioned, and the distance from the liquid level transmitter to the water surface is obtained by utilizing the principle that the measured liquid static pressure is in direct proportion to the liquid height. However, due to the construction process problems of civil engineering and electromechanical construction units, the installation height of the overflow pipe of the fire pool, the installation height of the float valve and the whole volume of the fire pool have certain deviation from the design value. When the actual liquid level of fire-fighting pool has arrived the overflow mouth height, begin the overflow, nevertheless input type liquid level changer receives installation depth, equipment precision to influence, shows that the water level does not reach high water level alarm value, and electronic moisturizing butterfly valve can't close the valve, directly arouses the overflow of fire-fighting pool. Therefore, the actual measurement parameter of the input type liquid level transmitter is the depth of the input type liquid level transmitter, the relative position of the liquid level of the fire pool relative to the overflow pipe orifice cannot be fed back positively, and the functions of high-water-level alarm and overflow alarm of the fire pool are not applicable relatively.

The electrode type liquid level switch uses the conductivity of the liquid to detect the level of the liquid. Once the water in the fire pool touches the pole, the electricity is conducted, and a signal is detected. After the signal of the controller is amplified, a contact signal is output for the user to control the liquid level. When the liquid level of the fire pool is below, the device normally has no alarm. And when the liquid level of the fire pool reaches the overflow liquid level, the controller displays an overflow alarm. However, in reality, as the fire pool is not provided with a cover, the fire pool is easy to touch the pole rod by mistake to cause alarm in rainy days or other cases of artificial water splashing.

Therefore, it is necessary to provide a fire pool overflow alarm device, which effectively monitors the overflow state of the fire pool, reduces the false alarm rate of the device, and improves the stability of the system.

Disclosure of Invention

An object of the utility model is to provide a fire pool overflow alarm device effectively realizes the supervision of fire pool overflow state, reduces equipment misstatement rate, the stability of lift system simultaneously.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the device is including pipeline 2, pipe connection ware 3, elbow I4, elbow II 5, overflow mouth 6, electron floater 7, normally closed ball valve 8, outlet 9 is constituteed, fire control overflow pipe 1 passes through pipe connection ware 3 and is connected with 2 front ends of pipeline, the tail end of pipeline 2 passes through pipe connection ware 3 and is connected with elbow I4, elbow I4 passes through pipe connection ware 3 and is connected with elbow II 5, elbow I4 forms ascending S-shaped with elbow II 5, elbow II 5 tail ends install overflow mouth 6 through pipe connection ware 5, install outlet 9 perpendicularly downwards in 2 middle sections of pipeline, install normally closed ball valve 8 on the outlet 9, electron floater 7 is installed to pipeline 2 top, and the signal output port of electron floater 7 is connected with external monitoring system' S signal input port.

Preferably, the electronic floating ball 7 is composed of a lower limiter 10, a sleeve 11, an annular magnet 12, a spring switch 13, a floater 14, an upper limiter 15, a fixing nut 16 and a signal cable 17, the sleeve 11 is arranged between the lower limiter 10 and the upper limiter 15, the spring switch 13 is installed in the sleeve 11, the annular magnet 12 and the floater 14 are sequentially sleeved outside the sleeve 11, the fixing nut 16 is installed at the upper end of the upper limiter 15, the signal cable 17 penetrates through the fixing nut 16, the upper limiter 15 enters the sleeve 11 and is connected with the spring switch 13, and the signal cable 17 and the spring switch 13 are installed at a normal opening point.

Preferably, the signal of the electronic floating ball 7 is connected with a signal input port of an automatic Fire Alarm System (FAS) through a signal cable 17.

Preferably, the pipeline 2 is made of a steel pipe or a PVC pipe.

Preferably, the pipe connector 2 can be selected from a groove, a flange, a thread and a welding connection.

The utility model discloses beneficial effect: an object of the utility model is to provide a fire pond overflow alarm device effectively realizes the supervision of fire pond overflow state, reduces equipment misstatement rate, the stability of lift system simultaneously.

Drawings

FIG. 1 is a structural diagram of the overflow alarm device of the fire pool of the present invention; FIG. 2 is a schematic view of the electronic float ball of the present invention; .

In the figure, 1-fire pool overflow pipe, 2-pipeline, 3-pipeline connector, 4-elbow I, 5-elbow II, 6-overflow port, 7-electronic floating ball, 8-normally closed ball valve, 9-water outlet, 10-lower limiter, 11-sleeve, 12-annular magnet, 13-spring switch, 14-floater, 15-upper limiter, 16-fixed nut and 17-signal cable

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

It can be known from fig. 1-2 that, fire-fighting pool overflow alarm device includes pipeline 2, pipe connector 3, elbow I4, elbow II 5, overflow mouth 6, electron floater 7, normally closed ball valve 8, outlet 9 constitutes, fire-fighting overflow pipe 1 passes through pipe connector 3 and is connected with pipeline 2 front end, pipeline 2 'S tail end passes through pipe connector 3 and is connected with elbow I4, elbow I4 passes through pipe connector 3 and is connected with elbow II 5, elbow I4 forms ascending S-shaped with elbow II 5, elbow II 5 tail end installs overflow mouth 6 through pipe connector 5, pipeline 2 middle section installs outlet 9 perpendicularly downwards, install normally closed ball valve 8 on the outlet 9, electron floater 7 is installed to pipeline 2 top, and the signal output port of electron floater 7 is connected with external monitored control system' S signal input port.

The electronic floating ball 7 is composed of a lower limiter 10, a sleeve 11, an annular magnet 12, a spring switch 13, a floater 14, an upper limiter 15, a fixing nut 16 and a signal cable 17, the sleeve 11 is arranged between the lower limiter 10 and the upper limiter 15, the spring switch 13 is installed in the sleeve 11, the annular magnet 12 and the floater 14 are sequentially sleeved outside the sleeve 11, the fixing nut 16 is installed at the upper end of the upper limiter 15, the signal cable 17 penetrates through the fixing nut 16, the upper limiter 15 enters the sleeve 11 and is connected with the spring switch 13, and the signal cable 17 and the spring switch 13 are installed at a normally open point. The signal of the electronic floating ball 7 is connected with a signal input port of a fire automatic alarm system (FAS) through a signal cable 17.

Float 14 among the electron floater 7 is in encapsulated situation in the inside of pipeline 2, can trigger the warning and can only be the rivers that appear from the fire-fighting water pond overflow pipe, can not lead to the mistake because of external force and touch, has avoided traditional electrode type liquid level switch to touch the shortcoming that leads to the warning because of the external force mistake, has reduced the wrong report rate of equipment. Because the electronic floating ball 7 is arranged at the top of the interior of the pipeline 2, and the floater 14 has a certain distance from the bottom, when the fire pool is not in a large water replenishing state, but small overflow caused by external factors such as rainwater and the like in the open-air state of the pool, the water amount entering the pipeline 2 is not enough to enable the floater 14 to float upwards to trigger alarm, and the false alarm rate is reduced. And only when the fire-fighting water pool is in a large amount of water supplement states, the water level is higher than the overflow port, a large amount of water flow enters the alarm device from the overflow pipe, the water flow rapidly enters and fills the pipeline 2, the floater 14 floats upwards to trigger alarm, the influence of installation depth and equipment precision on the traditional input type liquid level transmitter can be avoided, the fire-fighting water pool water level is higher than the overflow port and does not alarm, the monitoring of the fire-fighting water pool overflow state is effectively realized, the problem that frequent alarm causes excessive system reaction due to external mistaken touch or small overflow is also solved, and the system stability is improved.

After the overflow fault is processed, the residual water of the trap can be timely drained, the float switch is enabled to be recovered to be normal, the overflow alarm function of the fire pool is achieved through alarming, and the normal drainage capacity of the overflow pipe is not affected.

The input signal of the input module of the fire automatic alarm system (FAS) is a switch signal, the output signal of the small-sized floating ball valve is a switch signal, and the FAS loop input module can be newly added in a module box of the fire pump room to connect the normally open type floating ball switch with the input module. And completing description editing, engineering data updating and data uploading of the newly added module on an FAS program, updating a workstation system project, and realizing the function of uploading an overflow alarm signal of the fire pool to a vehicle control room.

The working principle of the device is as follows: after the overflow takes place for the fire-fighting water pond, the fire-fighting water flows into pipeline 2 through overflow pipe 1, elbow I4, elbow II 5, in the trap that overflow mouth 6 formed, because normally closed ball valve 8 above water escape opening 9 is in the closed condition, can form in the trap and deposit water, float 14 among the electron floater 7 receives buoyancy effect come-up, spring switch 13 receives the magnetic force influence actuation of annular magnet 12, normally open contact becomes normally closed contact, signal cable 17 switches on, after conflagration automatic alarm system (FAS) input module received the turn-on signal, conflagration automatic alarm system (FAS) host computer shows the fire-fighting water pond overflow and reports to the police.

Finally, the above preferred embodiments are only intended to illustrate the technical solution of the present invention and not to limit it, and although the present invention has been described in detail by the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a fire pool overflow alarm device which characterized in that: the device comprises a pipeline (2), a pipeline connector (3), an elbow I (4), an elbow II (5), an overflow port (6) and an electronic floating ball (7), wherein the normally closed ball valve (8) and a water outlet (9) are formed, a fire-fighting overflow pipe (1) is connected with the front end of the pipeline (2) through the pipeline connector (3), the tail end of the pipeline (2) is connected with the elbow I (4) through the pipeline connector (3), the elbow I (4) is connected with the elbow II (5) through the pipeline connector (3), the elbow I (4) and the elbow II (5) form an upward S shape, the overflow port (6) is arranged at the tail end of the elbow II (5) through the pipeline connector (3), the water outlet (9) is vertically arranged downwards in the middle section of the pipeline (2), the normally closed ball valve (8) is arranged on the water outlet (9), the electronic floating ball (7) is arranged above the pipeline (2), and the signal output port of the electronic floating ball (7) is connected with the signal input port of an external monitoring system.

2. The fire pool overflow warning device of claim 1, wherein: electronic float ball (7) are by stopper (10) down, sleeve (11), ring magnet (12), spring switch (13), float (14), go up stopper (15), fixing nut (16), signal cable (17) are constituteed, there is sleeve (11) in the middle of stopper (10) down and stopper (15), install spring switch (13) in sleeve (11), sleeve (11) outside overlaps in proper order has ring magnet (12) and float (14), it installs fixing nut (16) to go up stopper (15) upper end, signal cable (17) pass fixing nut (16), it is connected with spring switch (13) to go up stopper (15) entering sleeve (11), signal cable (17) and spring switch (13) adopt the mounting means of normal open point.

3. The fire pool overflow warning device of claim 2, wherein: the signal of the electronic floating ball (7) is connected with the signal input port of an automatic Fire Alarm System (FAS) through a signal cable (17).