A multi-signal linkage control fire alarm valve

Abstract

The utility model discloses a kind of multi-signal linkage control's fire alarm valve, including fire alarm valve, the upper and lower side of fire alarm valve is respectively equipped with system side and water supply side, system side extends upwards and is equipped with water outlet main pipeline, the end of water outlet main pipeline is equipped with the first water outlet pipe, second water outlet pipe and third water outlet pipe of three parallel structures and middle section is equipped with solenoid valve, end is equipped with the fourth water outlet pipe of intercommunication, fourth water outlet pipe other side is equipped with several water outlet branch pipes, water outlet branch pipe is equipped with fire sprinkler head on it. The utility model is equipped with the first water outlet pipe, second water outlet pipe and third water outlet pipe of three parallel structures by water outlet main pipeline end setting, and middle section is equipped with solenoid valve, solenoid valve is respectively connected with camera, smoke detector and smoke detector and realizes control;When camera, smoke detector and smoke detector any one signal finds fire, corresponding solenoid valve and water outlet main pipeline can be started to conduct, start fire alarm valve, realize multi-signal linkage control.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and more specifically to a fire alarm valve with multi-signal linkage control. Background Technology

[0002] A wet alarm valve is a one-way valve that allows water to flow into a sprinkler system in only one direction and triggers an alarm at a specified flow rate. Normally, the water pressure before and after the valve disc is equal (water maintains pressure balance through a pressure balancing orifice in the guide pipe). Due to the weight of the valve disc and the difference in total water pressure before and after it, the valve disc is closed (the total pressure above the valve disc is greater than the total pressure below the valve core). In the event of a fire, the closed sprinkler heads spray water. Because the pressure balancing orifice cannot replenish water quickly enough, the water pressure above the alarm valve drops. At this point, the water pressure before the valve disc is greater than the pressure after it, causing the valve disc to open and supply water to the riser and pipe network. Simultaneously, water flows along the annular groove of the alarm valve into the timer, pressure switch, and hydraulic alarm bell, triggering a fire alarm signal and activating the fire pump. However, existing wet alarm valves have a problem: single-signal control. For some non-high-temperature initial fires, such as dense smoke or fires visible to the naked eye but with low initial temperatures, they cannot activate in time, leading to delayed activation, affecting firefighting effectiveness, and potentially causing loss of life and property. In response to this, the inventor proposes a fire alarm valve with multi-signal linkage control. By setting up three signal linkages in parallel, the fire alarm valve can be quickly activated according to different fire types, extinguishing fires in the early stages, greatly improving the fire extinguishing effect and reducing losses.

[0003] To achieve effective water flow control, good sealing, and easy maintenance of fire alarm valves, Chinese patent (authorization announcement number: CN209500605U) discloses a fire alarm valve assembly. This utility model includes a main valve, which comprises a valve body, a sealing valve stem, a solenoid valve, and a sealing ring. The sealing valve stem is located inside the valve body, with the solenoid valve fixedly connected to its upper end. A sealing ring is located at the lower end of the sealing valve stem. An alarm pipeline and a water distribution pipe are connected to the left end of the valve body, with the water distribution pipe positioned above the alarm pipeline. An inlet pipe and a drain pipe are connected to the bottom and right ends of the valve body, respectively. This utility model has the advantages of simple structure, good sealing effect, and convenient maintenance.

[0004] The solution still has some shortcomings in application. Due to the variety of fire types, not all fires will have high temperatures in the early stages, and the fire extinguishing effect is best in the early stages of a fire. Therefore, the fire alarm valve needs to have multi-signal linkage to quickly activate according to different types of fires and improve the fire extinguishing effect. Therefore, the control structure of the fire alarm valve needs to be improved to enable multi-signal linkage, ensure rapid activation in the early stages of a fire, maximize the fire extinguishing effect, and protect the safety of life and property. Utility Model Content

[0005] This utility model discloses a fire alarm valve with multi-signal linkage control, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A fire alarm valve with multi-signal linkage control includes a fire alarm valve, with a system side and a water supply side on the upper and lower sides of the fire alarm valve, respectively. The system side extends upward to provide a main water outlet pipe. At the end of the main water outlet pipe are three parallel water outlet pipes: a first water outlet pipe, a second water outlet pipe, and a third water outlet pipe. The first water outlet pipe, the second water outlet pipe, and the third water outlet pipe are equipped with solenoid valves in the middle section and connected to a fourth water outlet pipe at their ends. Several water outlet branch pipes are installed on the other side of the fourth water outlet pipe, and several fire sprinkler heads are installed on the water outlet branch pipes.

[0008] Furthermore, the water supply side is equipped with a fire water tank, a water pump connection and a fire water pool, and a water pump is installed in front of the fire water pool.

[0009] Furthermore, the fire alarm valve includes an integrated valve body, a delay device, a pressure switch, a hydraulic alarm bell, and a pressure gauge.

[0010] Furthermore, a water flow indicator is installed on the front side of the main water outlet pipe.

[0011] Furthermore, cameras, smoke detectors, and temperature detectors are installed on the first water outlet pipe, the second water outlet pipe, the third water outlet pipe, and the water outlet branch pipe. The cameras, smoke detectors, and temperature detectors are connected to the solenoid valves via the fire control center.

[0012] Furthermore, the fire sprinkler head is an open sprinkler head.

[0013] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0014] This invention firstly involves installing three parallel outlet pipes—a first outlet pipe, a second outlet pipe, and a third outlet pipe—at the end of the main water outlet pipe on the fire alarm valve system side. Each outlet pipe is equipped with a solenoid valve in its middle section, which is connected to a camera, a smoke detector, and a fire sprinkler system, respectively. Then, when any one of these devices detects a fire, the corresponding solenoid valve is activated after confirmation from the external fire control room. This allows water from any one of the three outlet pipes to flow into the fire sprinkler system. Because the fire sprinkler head is an open sprinkler head, the system-side pressure can be lower than the water supply-side pressure, thereby activating the fire alarm valve. Finally, after the fire alarm valve is activated, the internal valve disc opens, and the fire water from the water supply side sprays to the system side for fire extinguishing. This utility model can achieve multi-signal linkage control by setting up a first, second, and third water outlet pipe in parallel structure, and the first, second, and third water outlet pipes are respectively connected to a camera, a smoke detector, and a smoke detector control. The design is ingenious, very practical, and suitable for promotion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a top view of the connection between the main water outlet pipe and the first, second, and third water outlet pipes of this utility model. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, a fire alarm valve with multi-signal linkage control includes a fire alarm valve 1. The upper and lower sides of the fire alarm valve 1 are respectively provided with a system side 2 and a water supply side 3. The system side 2 extends upward to provide a main water outlet pipe 4. The end of the main water outlet pipe 4 is provided with three parallel structures: a first water outlet pipe 5, a second water outlet pipe 6, and a third water outlet pipe 7. The first water outlet pipe 5, the second water outlet pipe 6, and the third water outlet pipe 7 are equipped with a solenoid valve 8 in the middle section and a connected fourth water outlet pipe 9 at the end. The other side of the fourth water outlet pipe 9 is provided with several water outlet branch pipes 10, and several fire sprinkler heads 11 are installed on the water outlet branch pipes 10.

[0019] Furthermore, the water supply side 3 is equipped with a fire water tank 12, a water pump connection 13 and a fire water pool 14, and a water pump 15 is provided on the front side of the fire water pool 14.

[0020] Furthermore, the fire alarm valve 1 includes an integrally designed valve body 16, a delay device 17, a pressure switch 18, a hydraulic alarm bell 19, and a pressure gauge 20.

[0021] Furthermore, a water flow indicator 21 is installed on the front side of the main water outlet pipe 4.

[0022] Furthermore, the first water outlet pipe 5, the second water outlet pipe 6, the third water outlet pipe 7, and the water outlet branch pipe 10 are equipped with a camera 22, a smoke detector 23, and a temperature detector 24. The camera 22, the smoke detector 23, and the temperature detector 24 are connected to the solenoid valve 8 through the fire control center.

[0023] Furthermore, the fire sprinkler head 11 is an open sprinkler head.

[0024] Example: First, several cameras 22, smoke detectors 23, and heat detectors 24 are installed on the first water outlet pipe 5, the second water outlet pipe 6, the third water outlet pipe 7, and the branch water outlet pipe 10. These cameras 22, smoke detectors 23, and heat detectors 24 are connected to the solenoid valve 8 through the fire control center. Then, when the camera 22 detects a fire, the smoke detector 23 detects dense smoke, or the heat detector 24 detects high temperature, a signal will be transmitted to the fire control center, and the corresponding solenoid valve 8 will be activated. After the solenoid valve 8 is activated, water will be discharged from any one of the first water outlet pipe 5, the second water outlet pipe 6, and the third water outlet pipe 7 to the fire sprinkler head 11. Water will be sprayed through the fire sprinkler head 11, so that the pressure on the system side 2 is less than that on the water supply side 3. Finally, the valve disc in the fire alarm valve 1 opens upward, the fire alarm valve 1 is activated, an alarm is triggered by the hydraulic alarm bell 19, and the water pump 15 is activated by the pressure switch 18 to supply water.

[0025] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0026] This invention firstly involves installing three parallel outlet pipes—a first outlet pipe, a second outlet pipe, and a third outlet pipe—at the end of the main water outlet pipe on the fire alarm valve system side. Each outlet pipe is equipped with a solenoid valve in its middle section, which is connected to a camera, a smoke detector, and a fire sprinkler system, respectively. Then, when any one of these devices detects a fire, the corresponding solenoid valve is activated after confirmation from the external fire control room. This allows water from any one of the three outlet pipes to flow into the fire sprinkler system. Because the fire sprinkler head is an open sprinkler head, the system-side pressure can be lower than the water supply-side pressure, thereby activating the fire alarm valve. Finally, after the fire alarm valve is activated, the internal valve disc opens, and the fire water from the water supply side sprays to the system side for fire extinguishing. This utility model can achieve multi-signal linkage control by setting up a first, second, and third water outlet pipe in parallel structure, and the first, second, and third water outlet pipes are respectively connected to a camera, a smoke detector, and a smoke detector control. The design is ingenious, very practical, and suitable for promotion.

[0027] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A fire alarm valve with multi-signal linkage control, characterized in that: The device includes a fire alarm valve, with a system side and a water supply side on its upper and lower sides, respectively. The system side extends upward to form a main water outlet pipe, and at the end of the main water outlet pipe are three parallel water outlet pipes: a first water outlet pipe, a second water outlet pipe, and a third water outlet pipe. The first water outlet pipe, the second water outlet pipe, and the third water outlet pipe are equipped with solenoid valves in their middle sections and connected to a fourth water outlet pipe at their ends. Several water outlet branch pipes are installed on the other side of the fourth water outlet pipe, and several fire sprinkler heads are installed on the water outlet branch pipes.

2. The fire alarm valve with multi-signal linkage control according to claim 1, characterized in that: The water supply side is equipped with a fire water tank, a water pump connection and a fire water pool, and a water pump is located in front of the fire water pool.

3. The fire alarm valve with multi-signal linkage control according to claim 1, characterized in that: The fire alarm valve includes an integrated valve body, a delay device, a pressure switch, a hydraulic alarm bell, and a pressure gauge.

4. The fire alarm valve with multi-signal linkage control according to claim 1, characterized in that: A water flow indicator is installed at the front of the main water outlet pipe.

5. The fire alarm valve with multi-signal linkage control according to claim 1, characterized in that: The first water outlet pipe, the second water outlet pipe, the third water outlet pipe, and the water outlet branch pipe are equipped with cameras, smoke detectors, and temperature detectors. The cameras, smoke detectors, and temperature detectors are connected to solenoid valves via the fire control center.

6. The fire alarm valve with multi-signal linkage control according to claim 1, characterized in that: The fire sprinkler head is an open type.

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