Automatic drainage fine mist partition control valve box

Abstract

The invention discloses a mist zoning control valve box with an automatic drainage function, and belongs to the technical field related to fire fighting, the mist zoning control valve box comprises a valve box body, the interior of the valve box body is of a hollow structure, a control system comprises a zone valve box controller, a middle pipeline, a water inlet and outlet unit and a control unit, and the zone valve box controller is used for controlling the control unit. The control unit is installed outside the middle pipeline, and the bottom of the middle pipeline is connected with the water inlet and outlet unit. When an electric valve or an electromagnetic valve in the valve box breaks down to cause water flow leakage, low-pressure water flow can be drained through the high-low pressure automatic drainage assembly; the water is not sprayed from the water mist spray head, so that the protection area is prevented from being submerged by water due to wrong spraying, and the damage to equipment, personnel and property in the protection area is reduced. And low-pressure water flow is drained through the drainage device, so that the water loss can be effectively reduced, and equipment and facilities in the area are protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire protection, and particularly to an automatic drainage fine mist zoning control valve box. BACKGROUND

[0002] The application of water mist in fire protection began in the 1940s, when it was mainly used in special places such as transportation tools, etc. Now, due to environmental problems, halogenated alkane extinguishing agents are gradually eliminated, and the potential advantages of water mist as an extinguishing agent for the environment enable its application range to be constantly expanding. Research on the use of water mist extinguishing systems in residential buildings, flammable liquid storage facilities and electrical equipment has achieved encouraging results.

[0003] Domestic research on water mist extinguishing systems began in the late 1990s of the last century. It is a new type of fire protection technology developed on the basis of traditional water spray extinguishing systems. In recent years, China has actively carried out research on water mist extinguishing systems, and water mist extinguishing systems have been put into very many engineering practical applications.

[0004] The advantages of water mist extinguishing are: high-efficiency heat absorption, rapid cooling, rapid suffocation and extinguishing, radiation heat blocking, absorption of harmful smoke gas, environmental purification, balanced cooling; safe, energy-saving and environmentally friendly green disaster prevention technology, high efficiency, strong continuous extinguishing ability, good electrical insulation, good purification effect, no sealing and pressure resistance requirements for protecting space, wide applicability, space saving, quick installation, very low operation and maintenance cost, high cost performance, etc. Small water consumption, high extinguishing efficiency, etc. make the water mist extinguishing system widely used, such as archives library, energy storage cabin, wind turbine cabin, data machine room, hospital, library, etc.

[0005] The partition control valve is a key component in the water mist fire extinguishing system. The water mist fire extinguishing system is composed of a water mist fire extinguishing device, a partition control valve and a protective partition water mist nozzle. The water mist protection partition can be divided into multiple independent areas. Each area corresponds to a set of partition control valves. The internal controller of the partition control valve is controlled by the fire alarm host to drive the electric valve or the electric stop valve or the electric magnetic valve to complete the opening control and extinguish the fire. The fire-fighting water used by the system is affected by regional or site conditions, cutting and welding construction factors, etc. The water body is alkalized, and there are many planktonic corrosion ions. The closed pipe network is filled with water all year round, and there will be floating rust deposition. However, after the electromagnetic valve or the electric valve is opened and closed for a long time, the faults of blockage and non-sealing often occur, which leads to the leakage of the partition control valve. When the water flow leaks for a long time, it will reach the position of the water mist nozzle of the corresponding protection partition after accumulating to a certain extent, and then it will be sprayed or dripped through the nozzle at the top of the protection partition. As a result, it will drop on the protected objects (such as archives, libraries, electrical equipment, cultural relics, data rooms, battery packs in energy storage cabins, transformers and other application scenarios), causing damage to the protected objects and causing property losses and accidents. The control principle is disclosed in a kind of high-pressure water mist partition control valve for fire control in application No. 202221646370.9. SUMMARY

[0006] One of the purposes of the present application is to solve the problem of water flow leakage of the electric valve body of the water mist partition control valve box on the market, which cannot be discharged when in use, and to provide an automatic drainage water mist partition control valve box.

[0007] To achieve the above purpose, the technical scheme adopted by the present application is as follows: an automatic drainage water mist partition control valve box, comprising a valve box main body, which is internally provided with a hollow structure for providing space for the installation of a control system, the control system comprising a regional valve box controller, an intermediate pipeline, an inlet and outlet water unit and a control unit, the regional valve box controller being used to control the operation of the control unit, the control unit being installed outside the intermediate pipeline, the bottom of the intermediate pipeline being connected to the inlet and outlet water unit for inlet and outlet of water flow, the control unit comprising a pipe clamp, a high-pressure ball valve, a pressure switch, a control ball valve, a pressure gauge and an automatic on-off valve assembly, the pipe clamp being used to fix the position of the intermediate pipeline, the high-pressure ball valve, the pressure switch, the control ball valve, the pressure gauge and the automatic on-off valve assembly being sequentially arranged outside the intermediate pipeline for controlling the flow of water, a high-low pressure automatic drainage assembly being further arranged on the water outlet pipeline of the automatic on-off valve assembly, the high-low pressure automatic drainage assembly being penetrated by a drainage pipe outside for discharging the leakage water generated by the automatic on-off valve assembly, and the drainage pipe outside being penetrated by a hole on the surface of the valve box main body and arranged outside the valve box main body.

[0008] Preferably, the valve box body comprises a box, a box cover and a box top, the outside of the box is provided with a hingedly connected box cover, and the top end of the box is provided with a box top with an inclined end face structure, the back of the box is provided with a mounting plate connected between the wall and the outside, the bottom of the drain pipe is connected with a drain unit for drainage monitoring of the fine mist partition control valve box arranged at equal intervals, wherein the drain unit comprises a drain main pipe and a connecting pipe, the drain main pipe is threadedly connected with the drain pipe, a connecting pipe penetrating the drain main pipe is threadedly installed in the middle of the drain main pipe, and a water flow sensor is arranged at the top end of the connecting pipe for water flow monitoring.

[0009] Preferably, the outside of the high-low pressure automatic drainage assembly is further provided with a flow guide unit connected with the drain pipe, the inside of the area valve box controller and the flow guide unit is provided with a mounting plate detachably installed with the inner wall of the box, the water inlet and outlet unit comprises a water outlet pipe and a water inlet pipe, the water outlet pipe and the water inlet pipe penetrate the output end and the input end of the intermediate pipeline respectively, and the output end and the input end of the intermediate pipeline penetrate the outside of the box and the external fire pipeline, wherein the water outlet pipe is arranged below the high-pressure ball valve, the water inlet pipe is arranged below the automatic switch valve assembly, and the intermediate pipeline is one of U-shaped, straight, L-shaped, U-shaped and straight combination, straight and L-shaped combination, U-shaped and L-shaped combination, or U-shaped, straight and L-shaped combination.

[0010] Preferably, the high-low pressure automatic drainage assembly is one of an automatic control drainage unit, an automatic drainage valve or a low-leakage high-sealing valve, wherein the automatic control drainage unit comprises a valve cover unit, a valve seat unit and a drain hole, the valve cover unit is threadedly connected between the lower part and the valve seat unit, and a drain hole is arranged at the top end of the valve cover unit for low-pressure water flow discharge.

[0011] Preferably, the high-low pressure automatic drainage assembly further comprises a valve plate unit and a signal feedback device, the valve plate unit is arranged outside the valve cover unit, and the top end thereof is connected with the signal feedback device.

[0012] Preferably, the valve cover unit comprises a valve cover body, a moving valve core, a first O-shaped sealing ring, a spring assembly, an intermediate groove and a through hole, the half cross section of the valve cover body is provided in a convex structure, and the intermediate groove is provided in the middle of the valve cover body and penetrates the bottom thereof, the moving valve core is provided in the inside of the intermediate groove, the first O-shaped sealing ring is provided in the middle of the moving valve core, and the bottom of the moving valve core is provided with a cylindrical groove, and the cylindrical groove is provided with a through hole penetrating the intermediate groove, the spring assembly is provided at the top end of the moving valve core and connected with the top end of the inner wall of the intermediate groove, and the intermediate groove penetrates between the top end and the drain hole, and the automatic switch valve assembly is any one of the automatic switch valves driven by electricity, gas or other means.

[0013] Preferably, the valve seat unit comprises a valve seat body, a mounting pipe, a second O-shaped sealing ring and a clamping cavity, the half cross section of the valve seat body is provided in a concave structure, and the concave structure is connected with the convex structure of the valve cover body through threads, the mounting pipe is integrally provided at the bottom of the valve seat body, the top end of the mounting pipe is used for connecting and penetrating the intermediate pipeline, the cylindrical water inlet channel is provided in the middle of the mounting pipe, the cross section size of the water inlet channel is the same as that of the cylindrical groove at the bottom of the moving valve core, the cylindrical groove corresponds to the position of the water inlet channel, and the second O-shaped sealing ring is provided at the bottom of the mounting pipe and used for sealing work.

[0014] Preferably, the valve plate unit comprises a valve plate body, a through pipeline and a detection probe, the outer side of the valve plate body is connected with the outside of the valve cover unit, the through pipeline is provided in the inside of the valve plate body and corresponds to the drain hole, the detection probe is provided in the middle of the through pipeline and electrically connected with the signal feedback device.

[0015] Preferably, the flow guide unit comprises a driving motor, a fixed shell, a first shell, a second shell, a connecting hose, a rotating shaft, a connecting plate and a squeezing wheel, the back of the driving motor is provided with a mounting, and the top end thereof penetrates the fixed shell and is connected with the rotating shaft, the fixed shell is coaxially connected with the driving shaft at the top end of the bottom of the driving motor, the connecting plates are distributed at equal angles on the outside of the rotating shaft, and the squeezing wheel is provided at the top end of the connecting plate and connected with the shaft.

[0016] Preferably, the inside of the fixed shell is clamped with a connecting hose, and the two side top ends of the connecting hose are arranged in the inside of the first shell and the second shell respectively, the middle connecting hose is clamped in an arc shape, and the size of the arc shape corresponds to the size of the equiangularly distributed extrusion wheel, the first shell and the second shell are penetrated between the fixed shell, the top end of the connecting hose in the inside of the first shell is connected with the drain hole, and the top end of the connecting hose in the inside of the second shell is connected with the drain pipe.

[0017] Compared with the prior art, the application has the beneficial effects that: (1) The high-low pressure automatic drainage assembly is arranged, when the electric valve or the electromagnetic valve in the valve box fails to cause water leakage, the low-pressure water flow can be discharged through the high-low pressure automatic drainage assembly instead of being sprayed from the water mist nozzle, so that the protection area is not flooded due to mis-spraying, and the damage to the equipment, personnel and property in the protection area is reduced. The water spray of the water mist nozzle can cause serious damage to the electrical equipment and precision instruments in the protection area. The low-pressure water flow discharged through the drainage device can effectively reduce such water damage and protect the equipment and facilities in the protection area. At the same time, the low-pressure water flow discharged through the drainage device can reduce the damage and maintenance workload of the equipment due to mis-spraying, and reduce the maintenance cost. At the same time, the economic loss caused by system shutdown is reduced.

[0018] (2) The drainage unit is arranged, through which the water flow in the drainage main pipe can be quickly monitored. The control valve box with a fault can be quickly located, and system paralysis or fire extinguishing delay caused by untimely troubleshooting can be avoided. Once the drainage unit detects abnormal discharge of the low-pressure water flow, the system can immediately issue an alarm in cooperation with the setting of the external alarm mechanism, to notify the maintenance personnel to timely handle. Such a quick response mechanism can effectively prevent equipment damage, electrical short circuit and other safety hazards caused by water leakage, and ensure the safe operation of the system.

[0019] (3) The flow guide unit is arranged, which can quickly assist in discharging the leaked water flow in the high-low pressure drainage assembly, reduce the accumulation time of the water flow in the valve box, and quickly discharge the water flow to the detection unit, so as to reduce false alarms and missed alarms caused by delayed drainage, ensure that the system can accurately detect the fault condition, and quickly locate and handle the fault, so as to ensure that the water mist fire extinguishing system can be used at any time when a fire occurs, and improve the usability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a main view structural schematic diagram of the valve box body of the application.

[0021] Figure 2The connection structure diagram of the valve box body and the drainage unit of the present application is shown in the figure.

[0022] Figure 3 The distribution structure diagram of the intermediate pipeline in the valve box body of the present application is shown in the figure.

[0023] Figure 4 The distribution structure diagram of the intermediate pipeline in the valve box body of the present application is shown in the figure.

[0024] Figure 5 The distribution structure diagram of the intermediate pipeline in the valve box body of the present application is shown in the figure.

[0025] Figure 6 The distribution structure diagram of the intermediate pipeline in the valve box body of the present application is shown in the figure.

[0026] Figure 7 The connection structure diagram of the control unit, the intermediate pipeline and the flow guide unit of the present application is shown in the figure.

[0027] Figure 8 The local enlarged structure diagram of the drainage unit of the present application is shown in the figure.

[0028] Figure 9 The top view and half-section structure diagram of the high-low pressure automatic drainage assembly of the present application is shown in the figure.

[0029] Figure 10 The structure diagram of the high-low pressure automatic drainage assembly of the present application is shown in the figure.

[0030] Figure 11 The half-section structure diagram of the valve plate unit and the valve cover unit of the present application is shown in the figure.

[0031] Figure 12 The structure diagram of the flow guide unit of the present application is shown in the figure.

[0032] In the figure: 1, valve box main body; 11, box body; 12, box cover; 13, box top; 2, drain pipe; 3, drainage unit; 31, drainage main pipe; 32, connecting pipe; 321, water flow sensor; 4, area valve box controller; 5, intermediate pipeline; 6, water inlet and outlet unit; 61, water outlet pipe; 62, water inlet pipe; 7, control unit; 71, pipe clamp; 72, high-pressure ball valve; 73, pressure switch; 74, control ball valve; 75, pressure gauge; 76, high and low pressure automatic drainage assembly; 77, electric valve body; 761, valve cover unit; 762, valve seat unit; 763, drain hole; 764, valve plate unit; 765, signal feedback device; 7611, valve cover main body; 7612, moving valve core; 7613, first O-shaped sealing ring; 7614, spring assembly; 7615, intermediate groove body; 7616, through hole; 7621, valve seat main body; 7622, mounting pipe; 7623, second O-shaped sealing ring; 7624, clamping cavity; 7641, valve plate main body; 7642, through pipeline; 7643, detection probe; 8, flow guide unit; 81, driving motor; 82, fixed shell; 83, first shell; 84, second shell; 85, connecting hose; 86, rotating shaft; 87, connecting plate; 88, extrusion wheel. DETAILED DESCRIPTION

[0033] Hereinafter, the present application will be further described in conjunction with specific embodiments. It should be noted that, under the premise of not conflicting, the embodiments described below or the technical features between them can be combined in any manner to form new embodiments.

[0034] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0035] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or chronological order.

[0036] Embodiment 1 One of the preferred embodiments of the present application is as follows: Figure 1 and Figure 3As shown, an automatic drainage fine mist partition control valve box, comprising a valve box body 1, which is internally provided with a hollow structure for providing installation space for a control system, the control system comprising a region valve box controller 4, an intermediate pipeline 5, an in-out water unit 6 and a control unit 7, the region valve box controller 4 being used for controlling the control unit 7, the control unit 7 being installed outside the intermediate pipeline 5, the bottom of the intermediate pipeline 5 being connected with the in-out water unit 6 for in-out water flow work, the control unit 7 comprising a pipe clamp 71, a high-pressure ball valve 72, a pressure switch 73, a control ball valve 74, a pressure gauge 75 and an automatic on-off valve assembly 77, the pipe clamp 71 being used for position fixing work of the intermediate pipeline 5, the high-pressure ball valve 72, the pressure switch 73, the control ball valve 74, the pressure gauge 75 and the automatic on-off valve assembly 77 being sequentially arranged outside the intermediate pipeline 5 for controlling water flow work, a high-low pressure automatic drainage assembly 76 being further arranged on the water outlet pipe network of the automatic on-off valve assembly 77, the high-low pressure automatic drainage assembly 76 being mutually penetrated between the outside and the drainage pipe 2 for discharging the leakage water generated by the automatic on-off valve assembly 77, the drainage pipe 2 penetrating the perforation on the surface of the valve box body 1 being arranged outside the valve box body 1.

[0037] The valve box body 1 comprises a box body 11, a box cover 12 and a box top 13, the box cover 12 being hingedly arranged outside the box body 11, and the box top 13 being installed at the top end of the box body 11 and being inclined.

[0038] The in-out water unit 6 comprises a water outlet pipe 61 and a water inlet pipe 62, the water outlet pipe 61 and the water inlet pipe 62 being respectively penetrated with the output end and the input end of the intermediate pipeline 5, and the output end and the input end of the intermediate pipeline 5 being penetrated with the outside of the box body 11 and the external fire-fighting pipeline, wherein the water outlet pipe 61 is arranged below the high-pressure ball valve 72, and the water inlet pipe 62 is arranged below the automatic on-off valve assembly 77, the intermediate pipeline 5 being one of U-shaped, straight, L-shaped, U-shaped and straight combination, straight and L-shaped combination, U-shaped and L-shaped combination or U-shaped, straight and L-shaped combination.

[0039] The application provides an automatic water drainage fine mist partition control valve box with a high-low pressure automatic water drainage assembly 76, specifically, when in use, first, the whole valve box main body 1 is installed between the wall and the installation plate outside the box body 11, after installation, the whole valve box main body 1 can work, when working, the external fire alarm host links the area valve box controller 4 in the box body 11, so that the area valve box controller 4 controls the automatic switch valve assembly 77 to open, the fire water enters the inside of the intermediate pipeline 5 through the water inlet pipe 62 of the water inlet and outlet unit 6, and then is discharged from the water outlet pipe 61 on the other side of the water inlet and outlet unit 6, and then reaches the nozzle position at the top of the protection partition to be sprayed, so as to achieve the purpose of fine water mist fire extinguishing.

[0040] When the automatic switch valve assembly 77 fails and causes the position of the automatic switch valve assembly 77 to leak fire water, since the water outlet position of the automatic switch valve assembly 77 is provided with the high-low pressure automatic water drainage assembly 76, the low-pressure leakage water flow can be collected and finally discharged through the drain pipe 2, thereby avoiding the problem that the leakage low-pressure water flow is sprayed through the nozzle at the top of the protection partition.

[0041] Specifically, in the application, when the intermediate pipeline 5 is in the U-shaped form, the distribution position of the internal control unit 7 is referenced to the valve group box of the DN25K model (specifically referenced to Figure 3 ), when the intermediate pipeline 5 is in the U-shaped and straight line combination or the straight line and L-shaped combination, the distribution position of the internal control unit 7 is referenced to the DN32 or DN40 (specifically referenced to Figure 4 、 Figure 5 and Figure 6 ), and further, other combination forms of the intermediate pipeline 5 can also be referenced to the valve group box of the following models: XSWFZ15 / 16SFT, XSWFZ20 / 16SFT, XSWFZ25 / 16SFT, XSWFZ32 / 16SFT, XSWFZ40 / 16SFT, XSWFZ50 / 16SFT, XSWFZ65 / 16SFT, XSWFZ80 / 16SFT, XSWFZ100 / 16SFT.

[0042] Further, the principle of the fire alarm host linkage control partition control valve box internal controller in the present application is that the fire detectors such as smoke detectors, heat detectors and the like installed in the protected area monitor the fire characteristic parameters such as smoke concentration, temperature change and the like in the environment in real time. When the fire characteristic parameters reach the set threshold value are detected, the detector converts the fire signal into an electric signal. When the fire alarm controller receives the electric signal from the fire detector, the signal is processed and judged. If it is confirmed as a fire signal, the controller will issue an audible and visual alarm signal, and transmit the fire alarm information to the fire linkage controller. The fire linkage controller is the core of the fire linkage control system, and receives the fire alarm signal transmitted by the fire alarm controller. According to the preset logical relationship and control program, the signal is analyzed and judged. When the fire alarm signal meets the preset linkage logic condition such as receiving two independent fire detector signals, the fire linkage controller sends a linkage control signal to the controller in the partition control valve box according to the preset control time sequence. The area valve box controller 4 in the partition control valve box receives the control signal of the fire linkage controller and performs corresponding actions. For example, the automatic on-off valve assembly 77 is opened, the external fire water pump is started, and the water mist fire extinguishing system enters the fire extinguishing state.

[0043] Embodiment 2 In order to detect the leakage of the automatic on-off valve assembly 77 in time, according to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8 , the bottom of the drain pipe 2 is connected with the drain unit 3 for water drainage monitoring work of the equally spaced water mist partition control valve box, wherein the drain unit 3 includes a drain main pipe 31 and a connecting pipe 32, the drain main pipe 31 is threadedly connected with the drain pipe 2, a connecting pipe 32 penetrating the drain main pipe 31 is threadedly installed in the middle of the drain main pipe 31, and a water flow sensor 321 is arranged at the top end of the connecting pipe 32 for water flow monitoring work.

[0044] Specifically, when the leakage water of the automatic switch valve assembly 77 is discharged through the high-low pressure automatic drainage assembly 76 to the inside of the drainage main pipe 31 through the drainage pipe 2, it will reach the inside of the connecting pipe 32 through the drainage main pipe 31, and the water flow sensor 321 at the top end of the connecting pipe 32 will detect the water flow. The water flow sensor 321 converts the water flow signal into an electrical signal, usually a pulse signal or an analog voltage signal, which is amplified, filtered and converted by the signal conditioning circuit to ensure signal quality and stability. For example, the pulse signal output by the mechanical water flow sensor may need to be converted into flow information by a counter and frequency meter, and the processed signal is transmitted to the alarm controller through a cable to complete the alarm work, achieving the purpose of rapid alarm monitoring.

[0045] Further, according to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , the outer side of the high-low pressure automatic drainage assembly 76 is also provided with a flow guide unit 8 connected with the drainage pipe 2, and the inner sides of the area valve box controller 4 and the flow guide unit 8 are provided with mounting plates for dismounting and installing the inner wall of the box 11.

[0046] Specifically, during operation, in order to ensure that the water flow in the high-low pressure automatic drainage assembly 76 can be quickly discharged, the flow guide unit 8 can also be started to assist the water flow in the high-low pressure automatic drainage assembly 76 to be quickly discharged into the inside of the drainage pipe 2 through the flow guide unit 8, achieving the purpose of avoiding water flow accumulation.

[0047] As a further preferred embodiment of the present embodiment 1, according to Figure 9 , the high-low pressure automatic drainage assembly 76 is an automatic control drainage unit, which includes a valve cover unit 761, a valve seat unit 762 and a drainage hole 763. The valve cover unit 761 is threadedly connected between the lower part and the valve seat unit 762, and the drainage hole 763 is provided at the top end of the valve cover unit 761 for low-pressure water flow discharge.

[0048] The valve cover unit 761 includes a valve cover body 7611, a moving valve core 7612, a first O-shaped sealing ring 7613, a spring assembly 7614, an intermediate groove body 7615 and a through hole 7616. The half cross section of the valve cover body 7611 is provided in a convex structure, and the intermediate part of the valve cover body 7611 is provided with the intermediate groove body 7615 penetrating the bottom thereof. The inside of the intermediate groove body 7615 is provided with the moving valve core 7612. The intermediate part of the moving valve core 7612 is provided with the first O-shaped sealing ring 7613, and the bottom thereof is provided with a cylindrical groove, and the cylindrical groove is provided with the through hole 7616 penetrating the intermediate groove body 7615. The top end of the moving valve core 7612 is provided with the spring assembly 7614 connected with the inner wall top end of the intermediate groove body 7615, and the position of the intermediate groove body 7615 deviating from the top end penetrates the drain hole 763. The automatic switch valve assembly 77 can be any one of the automatic switch valves driven by electricity, gas or the like, such as an electric ball valve, an electric stop valve or an electromagnetic valve.

[0049] The valve seat unit 762 includes a valve seat body 7621, a mounting pipe 7622, a second O-shaped sealing ring 7623 and a clamping cavity 7624. The half cross section of the valve seat body 7621 is provided in a concave structure, and the concave structure is connected with the convex structure of the valve cover body 7611 through threads. The bottom of the valve seat body 7621 is integrally provided with the mounting pipe 7622. The top end of the mounting pipe 7622 is used for connecting and penetrating with the intermediate pipeline 5. The intermediate part of the mounting pipe 7622 is provided with a cylindrical water inlet channel, and the cross section size of the water inlet channel is the same as that of the cylindrical groove at the bottom of the moving valve core 7612. The position of the cylindrical groove corresponds to that of the water inlet channel. The bottom of the mounting pipe 7622 is provided with the second O-shaped sealing ring 7623 for sealing work.

[0050] Further, when the automatic switch valve assembly 77 leaks, the water flow in the water inlet pipe 62 is in a low pressure state. The low pressure water flow leaks through the water inlet channel in the mounting pipe 7622 to the cylindrical groove in the moving valve core 7612. Since the cylindrical groove is provided with a through hole 7616, the low pressure water flow reaches the inside of the intermediate groove body 7615 through the through hole 7616. With the accumulation of the water flow, when it reaches the position of the drain hole 763, at this time, the water flow is discharged through the drain hole 763 to the inside of the flow guide unit 8, and finally reaches the inside of the drain pipe 2 through the discharge work of the flow guide unit 8, and is discharged to the inside of the drain unit 3. Further, when the automatic switch valve assembly 77 is working normally and there is no leakage, at this time, when the high-pressure water flow reaches the inside of the cylindrical groove through the water inlet channel, the high-pressure water flow will extrude the moving valve core 7612, so that it is extruded upward in the middle of the middle groove body 7615 to move the spring assembly 7614, when it moves to the top, at this time, the first O-shaped sealing ring 7613 is extruded to the inner wall of the valve cover body 7611, thereby sealing the lower part of the middle groove body 7615, so that the water flow cannot pass through the middle groove body 7615 to reach the drain hole 763 position, so that with the continuous accumulation of high-pressure water flow, it will directly reach the inside of the middle pipeline 5, thereby completing the continuous flow work.

[0051] In this application, when the high-low pressure automatic drainage assembly 76 is an automatic drainage valve or a low-leakage high-sealing valve, after the automatic switch valve assembly 77 is closed, the automatic drainage valve can drain the residual water in the pipeline to prevent water accumulation in the pipeline, and when there is a small water leakage at the outlet of the automatic switch valve assembly 77, the high-low pressure automatic drainage valve or the low-leakage high-sealing valve can be closed under normal working pressure to prevent the system from leaking and accidents due to small leakage, thereby improving the reliability and stability of the system.

[0052] As a further preferred embodiment of the present application 2, according to Figure 10 and Figure 11 As shown in the drawings, the high-low pressure automatic drainage assembly 76 further comprises a valve plate unit 764 and a signal feedback device 765, the valve plate unit 764 is arranged outside the valve cover unit 761, and the top end thereof is connected with the signal feedback device 765.

[0053] The valve plate unit 764 comprises a valve plate body 7641, a through pipeline 7642 and a detection probe 7643, the outer side of the valve plate body 7641 is connected with the outside of the valve cover unit 761, and a through pipeline 7642 is arranged inside the valve plate body 7641 corresponding to the drain hole 763, and a detection probe 7643 is arranged in the middle of the through pipeline 7642, and the detection probe 7643 is electrically connected with the signal feedback device 765.

[0054] Specifically, when the low-pressure water flow reaches the position of the drain hole 763, it further enters the inside of the through pipeline 7642, since the inside of the through pipeline 7642 is provided with the detection probe 7643, it can detect the water flow, and finally transmit the detected electrical signal to the inside of the signal feedback device 765 for signal feedback, while the water flow continues to be guided by the guide unit 8 to the inside of the drain pipe 2 for direct discharge. When the Hall sensor is used as the water flow detection probe between the detection probe 7643 and the signal feedback device 765, the output electrical signal is directly transmitted to the input port of the signal feedback device 765, such as a single-chip microcomputer or a PLC. However, the present application is not limited in this regard.

[0055] In the present application, according to Figure 12 As shown in the figure, the guide unit 8 comprises a driving motor 81, a fixed shell 82, a first shell 83, a second shell 84, a connecting hose 85, a rotating shaft 86, a connecting plate 87 and a squeezing wheel 88. The back of the driving motor 81 is provided with a mounting, and the top end thereof penetrates the fixed shell 82 and is connected with the rotating shaft 86. The fixed shell 82 is coaxially connected with the driving shaft between the bottom of the driving motor 81 and the top end. The rotating shaft 86 is externally provided with the connecting plate 87 at equal angles, and the top end of the connecting plate 87 is provided with the shaft-connected squeezing wheel 88.

[0056] The inside of the fixed shell 82 is clamped with the connecting hose 85, and the two sides of the top end of the connecting hose 85 are respectively arranged in the inside of the first shell 83 and the second shell 84. The connecting hose 85 in the middle is clamped in an arc shape, and the size of the arc shape corresponds to the size of the equally-angled squeezing wheel 88. The first shell 83 and the second shell 84 are penetrated with the fixed shell 82. The top end of the connecting hose 85 in the first shell 83 is connected with the drain hole 763. The top end of the connecting hose 85 in the second shell 84 is connected with the drain pipe 2.

[0057] Specifically, the water flow discharged through the drain hole 763 reaches the inside of the fixed shell 82 through the connecting hose 85 in the first shell 83, then reaches the connecting hose 85 in the second shell 84, and finally reaches the inside of the drain pipe 2. When the water flow is in the connecting hose 85, when the water flow sensor 321 on the drain unit 3 or the signal feedback device 765 detects the water flow, the driving motor 81 can be controlled to start, so that the rotating shaft 86 at the top end thereof is rotated. When the rotating shaft 86 rotates, the connecting plate 87 and the squeezing wheel 88 at the top end thereof are rotated. When the squeezing wheel 88 rotates, the top end thereof squeezes the connecting hose 85, so that the pressure in the connecting hose 85 changes, and thus the water flow can be quickly sucked into the inside of the drain pipe 2.

[0058] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fine mist partition control valve box with automatic drainage, characterized in that: The invention comprises a valve box body (1), the interior of which is arranged as a hollow structure for providing space for installing a control system, wherein the control system comprises a regional valve box controller (4), an intermediate pipeline (5), an inlet and outlet water unit (6) and a control unit (7), wherein the regional valve box controller (4) is used to control the control unit (7), wherein the control unit (7) is installed outside the intermediate pipeline (5), wherein the bottom of the intermediate pipeline (5) is connected to the inlet and outlet water unit (6) for controlling the inlet and outlet water flow, wherein the control unit (7) comprises a pipe clamp (71), a high-pressure ball valve (72), a pressure switch (73), a control ball valve (74), a pressure gauge (75) and an automatic switch valve assembly (77), wherein the The pipe clamp (71) is used to fix the position of the intermediate pipeline (5). A high-pressure ball valve (72), a pressure switch (73), a control ball valve (74), a pressure gauge (75) and an automatic switch valve assembly (77) are sequentially arranged on the outside of the intermediate pipeline (5) for controlling the flow of water. A high-low pressure automatic drainage assembly (76) is also arranged on the outlet pipe network of the automatic switch valve assembly (77). The outside of the high-low pressure automatic drainage assembly (76) and the drainage pipe (2) penetrate each other and are used to discharge the leaked water generated by the automatic switch valve assembly (77). The perforation on the outside of the drainage pipe (2) that penetrates the surface of the valve box body (1) is arranged on the outside of the valve box body (1).

2. The automatic drainage mist zone control valve box according to claim 1, characterized in that: The valve box body (1) includes a box body (11), a box cover (12) and a box top (13), the outside of the box body (11) is provided with a box cover (12) connected by a hinge, and the top of the box body (11) is installed with a box top (13) with an inclined end face structure, and the back of the box body (11) is provided with a mounting plate for connecting with an external wall, and the bottom of the drain pipe (2) is connected to the drain unit (3) for drain monitoring of the fine mist partition control valve box arranged at equal intervals, wherein the drain unit (3) includes a drain main (31) and a connecting pipe (32), the drain main (31) and the drain pipe (2) are threadedly connected, and a connecting pipe (32) is installed on the middle thread of the drain main (31) and penetrates the drain main (31), and a water flow sensor (321) is provided on the top of the connecting pipe (32) for water flow monitoring.

3. The automatic drainage mist zone control valve box according to claim 2, characterized in that: The high and low pressure automatic drainage assembly (76) is also provided with a guide unit (8) on the outside thereof to connect with the drainage pipe (2). The inner sides of the regional valve box controller (4) and the guide unit (8) are provided with mounting plates to be disassembled and installed with the inner wall of the box body (11). The water inlet and outlet unit (6) includes an outlet pipe (61) and an inlet pipe (62). The outlet pipe (61) and the inlet pipe (62) are respectively connected to the output end and the input end of the intermediate pipeline (5). The bottom of the output end and the input end of the intermediate pipeline (5) are both passed through the outside of the box (11) and the external fire protection pipeline, wherein the outlet pipe (61) is set to a position below the high-pressure ball valve (72), and the inlet pipe (62) is set to a position of the automatic switch valve assembly (77). The intermediate pipeline (5) is one of U-shaped, straight-line, L-shaped, a combination of U-shaped and straight-line, a combination of straight-line and L-shaped, a combination of U-shaped and L-shaped, or a combination of U-shaped, straight-line and L-shaped.

4. The automatic drainage mist zone control valve box according to claim 3, characterized in that: The high-low pressure automatic drainage assembly (76) is a type of automatic drainage unit, automatic drainage valve or low-leakage high-sealing valve, wherein the automatic drainage unit comprises a valve cover unit (761), a valve seat unit (762) and a drainage hole (763), the bottom of the valve cover unit (761) is threadedly connected to the valve seat unit (762), and a drainage hole (763) is provided at the top of the valve cover unit (761) for discharging low-pressure water flow.

5. The automatic drainage mist zone control valve box according to claim 4, characterized in that: The high-low pressure automatic drainage assembly (76) further comprises a valve plate unit (764) and a signal feedback device (765). The valve plate unit (764) is arranged outside the valve cover unit (761), and its top end is connected to the signal feedback device (765).

6. The automatic drainage mist zone control valve box according to claim 5, characterized in that: The valve cover unit (761) includes a valve cover body (7611), a movable valve core (7612), a first O-type sealing ring (7613), a spring assembly (7614), an intermediate tank body (7615) and a through hole (7616). The half-section of the valve cover body (7611) is arranged in a convex structure, and the middle of the valve cover body (7611) is provided with an intermediate tank body (7615) that passes through the bottom thereof. The interior of the intermediate tank body (7615) is provided with a movable valve core (7612). The middle of the movable valve core (7612) is provided with a first An O-shaped sealing ring (7613) is provided at the bottom thereof with a cylindrical groove, and the cylindrical groove is provided with a through hole (7616) which penetrates the middle tank body (7615). A spring assembly (7614) is provided at the top end of the movable valve core (7612) and is connected to the top end of the inner wall of the middle tank body (7615), and the top end of the middle tank body (7615) penetrates the drain hole (763). The automatic switch valve assembly (77) is any one of the automatic switch valves driven by electric, pneumatic or other means, such as an electric ball valve, an electric stop valve or a solenoid valve.

7. The automatic drainage mist zone control valve box according to claim 6, characterized in that: The valve seat unit (762) includes a valve seat body (7621), a mounting tube (7622), a second O-type sealing ring (7623) and a locking cavity (7624). The half-section of the valve seat body (7621) is a concave structure, and its concave structure is connected to the convex structure of the valve cover body (7611) by a thread. A mounting tube (7622) is integrally provided at the bottom of the valve seat body (7621). The top end of the mounting tube (7622) is used to connect and penetrate the intermediate pipeline (5). A cylindrical water inlet channel is provided in the middle of the mounting tube (7622), and the cross-sectional dimensions of the water inlet channel are the same as the cross-sectional dimensions between the cylindrical grooves at the bottom of the movable valve core (7612). The cylindrical grooves correspond to the positions of the water inlet channel. A second O-type sealing ring (7623) is provided at the bottom of the mounting tube (7622) for sealing.

8. The automatic drainage mist zone control valve box according to claim 5, characterized in that: The valve plate unit (764) includes a valve plate body (7641), a through-pipe (7642) and a detection probe (7643). The outer side of the valve plate body (7641) is connected to the outside of the valve cover unit (761), and a through-pipe (7642) is provided inside the valve plate body (7641) so as to penetrate correspondingly between the through-pipe (7642) and the drain hole (763), and a detection probe (7643) is provided in the middle of the through-pipe (7642). The detection probe (7643) is electrically connected to the signal feedback device (765).

9. The automatic drainage mist zone control valve box according to claim 3, characterized in that: The guide unit (8) comprises a driving motor (81), a fixed housing (82), a first housing (83), a second housing (84), a connecting hose (85), a rotating shaft (86), a connecting plate (87) and an extrusion wheel (88). The back of the driving motor (81) is provided with a mounting, and the top end thereof penetrates the fixed housing (82) and is connected to the rotating shaft (86). The fixed housing (82) and the driving shaft at the bottom top of the driving motor (81) are coaxially connected. The outside of the rotating shaft (86) is provided with connecting plates (87) at equal angles, and an extrusion wheel (88) connected to the shaft is provided at the top end of the connecting plate (87).

10. The automatic drainage mist zone control valve box according to claim 9, characterized in that: A connecting hose (85) is engaged inside the fixed shell (82), and the top ends of the connecting hose (85) are respectively arranged inside the first shell (83) and the second shell (84). The connecting hose (85) in the middle is engaged in an arc shape, and the size of the arc corresponds to the size of the extrusion wheels (88) distributed at equal angles. The first shell (83) and the second shell (84) are connected to the fixed shell (82), wherein the top end of the connecting hose (85) inside the first shell (83) is connected to the drain hole (763), and the top end of the connecting hose (85) inside the second shell (84) is connected to the drain pipe (2).

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