Visualization device for preventing false alarm of alarm valve

Abstract

The utility model discloses a visual device for preventing false alarm of an alarm valve, and relates to the technical field of fire fighting equipment. The device comprises a transparent TPU connecting pipe, a quick connector and an anti-disengaging clamping groove, the quick connector is connected with a throttling orifice plate, the throttling orifice plate is connected with a drainage pipeline through the transparent TPU connecting pipe arranged on the downstream portion, the throttling orifice plate is connected with one end of the transparent TPU connecting pipe through the quick connector, the other end of the transparent TPU connecting pipe is connected with the drainage pipeline through the quick connector, and the anti-disengaging clamping groove is formed in the drainage pipeline. An anti-falling clamping groove is formed in the joint of the transparent TPU connecting pipe and the quick connector. The device is simple and convenient to operate, effectively optimizes the maintenance convenience of the alarm valve group, improves the recognition efficiency of the blockage fault of the throttling orifice plate, reduces the false alarm probability, reduces the installation and maintenance cost of the system, and has a wide application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fire fighting equipment, specifically relates to a visual device for preventing false alarm of alarm valve. BACKGROUND

[0002] The wet alarm valve is a kind of one-way valve that only allows water to flow into the sprinkler system unidirectionally and alarms under the specified flow, and the water pressure before and after the valve flap of the wet alarm valve is equal at ordinary times, water passes through the water supplement one-way valve, and the water pressure before and after the valve flap is balanced. When the pipe network pressure fluctuates, the wet alarm valve flap will be opened temporarily, water will flow into the delay timer through the alarm pipeline, and the pressure switch and the hydraulic alarm bell will be triggered after the delay timer is filled with water. The water in the delay timer is emptied through the lower orifice plate.

[0003] The traditional wet alarm valve system has structural defects: when the pipe network pressure fluctuates, the temporary opening of the valve flap will make water flow through the alarm test valve into the delay timer. Due to the functional characteristics, the orifice plate below the delay timer is prone to blockage and other situations. In addition, the prior art uses galvanized steel pipes to connect the orifice plate and the drain pipeline, which has the following technical bottlenecks:

[0004] (1) Structural defects: the current fire alarm valve system uses galvanized steel pipes to connect the delay timer and the orifice plate, which has complex processes such as pipe cutting and threading, low construction efficiency and high cost.

[0005] (2) Functional defects: due to the restriction of the orifice plate aperture, it is easy to be blocked by particles and impurities not less than 100 μm, which causes poor drainage of the delay timer, false triggering of the pressure switch and the hydraulic alarm bell, and the system false alarm rate is higher than the industry average.

[0006] (3) The metal pipe lacks state visibility, and the identification of orifice plate blockage and other faults depends on experience.

[0007] (4) Maintenance defects: the blocked fault needs to be checked and dredged by sequentially disassembling valve group components, drain pipes and other components, which takes an average of 45 minutes per time, has high operation complexity, and seriously affects the system availability.

[0008] In order to solve the above problems, it is particularly necessary to design a new visual device for preventing false alarm of alarm valve. Utility model content

[0009] In view of the deficiencies in the prior art, the utility model aims to provide a visual device for preventing false alarm of alarm valve, which is simple in structure, reasonable in design and easy to operate. It effectively optimizes the maintenance convenience of the alarm valve group, improves the identification efficiency of the orifice plate blockage fault, reduces the false alarm probability, reduces the system installation and maintenance cost, and is easy to use and promote.

[0010] In order to achieve the above object, the utility model is through the following technical scheme to realize: a visual device for preventing false alarm of alarm valve, including transparent TPU connecting pipe, quick -witted and anti -drop slot, quick -witted and throttle orifice plate are connected, and the throttle orifice plate is connected drainage pipeline through the downstream setting transparent TPU connecting pipe, and the throttle orifice plate is connected with one end of transparent TPU connecting pipe through quick -witted, and the other end of transparent TPU connecting pipe is connected with drainage pipeline through quick -witted, and the connecting place of transparent TPU connecting pipe and quick -witted is equipped with anti -drop slot.

[0011] As preferred, the transparent TPU connecting pipe adopts the thermoplastic polyurethane elastomer pipe with light transmittance ≥ 90%, and the inside of the transparent TPU connecting pipe is provided with a spiral flow guide structure, thereby optimizing the drainage efficiency.

[0012] As preferred, the quick -witted adopts the 304 stainless steel quick -witted, which has excellent corrosion resistance and greatly prolongs the service life.

[0013] As preferred, the transparent TPU connecting pipe and the pipe fitting interface of the quick -witted are provided with O -ring, thereby enhancing the sealing property.

[0014] The device is simple to operate, effectively optimizes the maintenance convenience of alarm valve group, shortens the troubleshooting time, improves the identification efficiency of throttle orifice plate blockage fault, constructs visual monitoring mechanism, reduces the false alarm probability, simultaneously reduces the system installation and maintenance cost, and has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be described in detail below in combination with the drawings and specific embodiments;

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 The enlarged schematic view of A part in the above-mentioned EMBODIMENT

[0018] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model will be further described below in combination with specific embodiments.

[0019] Refer to Figures 1-2The embodiment adopts the following technical scheme: a visual device for preventing false alarms of an alarm valve, comprising a transparent TPU connecting pipe 1, a quick connector 2 and an anti-disengagement groove 3, the quick connector 2 is connected with a throttle orifice plate 4, the throttle orifice plate 4 is connected with a drainage pipeline 5 through the transparent TPU connecting pipe 1 arranged downstream, the throttle orifice plate 4 is connected with one end of the transparent TPU connecting pipe 1 through the quick connector 2, the other end of the transparent TPU connecting pipe 1 is connected with the drainage pipeline 5 through the quick connector 2, and the anti-disengagement groove 3 is arranged at the connection position of the transparent TPU connecting pipe 1 and the quick connector 2.

[0020] It is worth noting that the transparent TPU connecting pipe 1 is a thermoplastic polyurethane elastomer pipe with a light transmittance of greater than or equal to 90%, and the transparent TPU connecting pipe 1 is internally provided with a spiral flow guide structure; and the pipe joint interface of the transparent TPU connecting pipe 1 and the quick connector 2 is provided with an O-shaped sealing ring to enhance the sealing performance.

[0021] In addition, the quick connector 2 is a 304 stainless steel quick connector, which has excellent corrosion resistance and greatly prolongs the service life.

[0022] The embodiment adopts a three-level modular design structure of a visual monitoring module, a quick maintenance module and a fluid optimization module, wherein the visual monitoring module forms an observation channel through the transparent TPU connecting pipe 1 and the quick connector 2, the quick maintenance module uses a buckle type interface arranged at the pipe joint connection position to support non-tool disassembly and simplify the operation, and the fluid optimization module is arranged downstream of the throttle orifice plate 4 and reduces the deposition of impurities caused by turbulent flow.

[0023] The embodiment adopts a composite connection structure based on the directional quick disassembly of the anti-disengagement groove and the 304 stainless steel quick connector, and a flow guide device is arranged in the transparent TPU connecting pipe and connected with the throttle orifice plate to optimize the drainage efficiency. Whether the throttle orifice plate is blocked can be directly observed through the transparent TUP connecting pipe, which facilitates daily disassembly, dredging and maintenance, avoids the inconvenience caused by disassembly of a large number of pipelines after blockage, and facilitates the cleaning of the throttle orifice plate by pulling out the stainless steel quick connector. The device is convenient and practical. The technical advantages of the device are as follows:

[0024] ①False alarm suppression: a visual monitoring mechanism is constructed to reduce the false alarm probability through real-time visual monitoring.

[0025] ②Maintenance optimization: without the need to disassemble valve group components for troubleshooting and dredging, the operation is simplified, the troubleshooting time is shortened, the maintenance convenience of the alarm valve group is greatly optimized, and the system availability is ensured.

[0026] ③Improve the visibility of the pipe state, and the identification of throttle orifice plate blockage and other faults does not need to rely on experience, which greatly improves the identification efficiency of throttle orifice plate blockage faults.

[0027] IV. Cost control: reduce installation cost and maintenance cost, and meanwhile, the corrosion resistance and deformation resistance of the TPU composite pipe fitting are improved, so that the TPU composite pipe fitting has wide market application prospect.

[0028] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A visual device for preventing false alarms from alarm valves, characterized in that, It includes a transparent TPU connecting tube (1), a quick connector (2), and an anti-detachment groove (3). The quick connector (2) is connected to a throttling orifice plate (4). The throttling orifice plate (4) is connected to a drainage pipe (5) through the transparent TPU connecting tube (1) located downstream. The throttling orifice plate (4) is connected to one end of the transparent TPU connecting tube (1) through the quick connector (2). The other end of the transparent TPU connecting tube (1) is connected to the drainage pipe (5) through the quick connector (2). An anti-detachment groove (3) is provided at the connection between the transparent TPU connecting tube (1) and the quick connector (2).

2. The visual device for preventing false alarms from alarm valves according to claim 1, characterized in that, The transparent TPU connecting tube (1) is a thermoplastic polyurethane elastomer tube with a light transmittance of ≥90%.

3. The visual device for preventing false alarms from alarm valves according to claim 1, characterized in that, The quick connector (2) is made of 304 stainless steel.

4. The visual device for preventing false alarms from alarm valves according to claim 1, characterized in that, The transparent TPU connecting tube (1) has a spiral flow guiding structure inside.

5. A visual device for preventing false alarms from alarm valves according to claim 1, characterized in that, An O-ring is provided at the fitting interface between the transparent TPU connecting tube (1) and the quick connector (2).

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