Foam water spray control valve group
By introducing drainage and drying mechanisms into the foam water spray control valve group, the problems of liquid discharge inconvenience and corrosion in the prior art are solved, the service life of the equipment is extended, and the maintenance of the drying environment is achieved.
Patent Information
- Application Number
- CN202420228590.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The foam water spray control valve group used for fire extinguishing in existing tunnel fires cannot discharge residual liquid during maintenance and disassembly, resulting in pollution and corrosion inside the box and lack of dehumidification function, reducing service life.
A foam water spray control valve group is designed, including a drainage mechanism and a drying mechanism. The drainage mechanism discharges water and foam in the valve group during maintenance through the drainage pipe and the drainage valve. The drying mechanism uses a hot air fan and a duct holding box. The body is dry and avoids corrosion.
It effectively solves the problems of inconvenience in discharge and corrosion of liquids, extends the service life of the equipment, and avoids liquid residues and water vapor corrosion through drainage and drying functions.
Smart Images
Figure CN222150790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire fighting and extinguishing, in particular to a foam water spray control valve group. Background Art
[0002] Tunnel fires are mainly Class B fires such as gasoline, Class A fires such as rubber, and Class AB mixed fires. The water spray control valve group in the tunnel is mainly composed of a water supply side signal butterfly valve, a deluge valve, a system side signal butterfly valve, a box, etc. In order to increase the fire extinguishing effect, foam is generally added. After searching, the Chinese patent authorization number CN206473695U discloses a foam spray control valve group box, a proportioning mixer is installed at the outlet end of the deluge valve, and the foam liquid input end of the proportioning mixer is connected to the foam liquid inlet pipe. It has a compact structure and is applicable to a wide range of pressure and flow. When a fire occurs, it can be quickly opened and provide a water-film foam mixture to the pipe network to spray foam into the protected area to extinguish the fire.
[0003] Although the above technical solution can provide a water-film foam mixture to the pipeline network and spray foam into the protected area to extinguish the fire, the valve group is installed inside the box when in use. The remaining liquid in the valve group cannot be discharged during maintenance and disassembly, and will flow into the box, causing inconvenience and causing pollution and corrosion to the interior of the box. In addition, it has no dehumidification function and is easily corroded by water vapor, thereby reducing its service life. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a foam water spray control valve group, which solves the problem in the background technology that the existing valve group cannot discharge the remaining liquid in the valve group during maintenance and disassembly, which will flow into the box body, causing inconvenience and causing pollution and corrosion to the interior of the box body, and has no dehumidification function, is easily corroded by water vapor and reduces the service life.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a foam water spray control valve group, including a box body and a box door connected to the surface of the box body by hinge rotation, the bottom of the box body is penetrated and fixedly connected with a fire water inlet pipe and a foam liquid inlet pipe, the interior of the fire water inlet pipe is fixedly installed with a first control valve and a water supply side signal butterfly in sequence, the interior of the foam liquid inlet pipe is fixedly installed with a second control valve, a filter, a balancing valve and a solenoid valve in sequence, a proportional mixer is fixedly connected between the fire water inlet pipe and the foam liquid inlet pipe, the liquid outlet end of the proportional mixer is fixedly connected with a mixed liquid outlet pipe, the interior of the mixed liquid outlet pipe is fixedly installed with a system side signal butterfly valve, the outer surfaces of the fire water inlet pipe and the foam liquid inlet pipe are penetrated and fixedly connected with a drainage mechanism, and the outer surface of the box body is penetrated and installed with a drying mechanism;
[0006] The drainage mechanism includes a drainage pipe, which runs through the corresponding fire water inlet pipe and foam liquid inlet pipe, and one end of the two drainage pipes is respectively located between the first control valve and the signal butterfly on the water supply side and between the second control valve and the filter. A drainage valve is fixedly installed inside the drainage pipe, which can drain all the water and foam in the valve group during maintenance and overhaul, avoiding inconvenience caused by liquid outflow during maintenance.
[0007] Preferably, one end of the drain pipe passes through the bottom of the box and extends to the outside of the box to prevent liquid from flowing into the inside of the box.
[0008] Preferably, the drying mechanism includes a mounting plate fixedly mounted on one side of the outer surface of the box body, a hot air blower is fixedly mounted on the upper surface of the mounting plate, an air outlet end of the hot air blower is fixedly connected with a tee, the other two ends of the tee are respectively fixedly connected with a connecting pipe and a fourth control valve, the other end of the connecting pipe is connected to the mixed liquid outlet pipe, and a third control valve is fixedly mounted inside the connecting pipe, so that the interior of the valve group can be dried to avoid liquid residue during maintenance.
[0009] Preferably, one end of the connecting pipe is located between the system-side signal butterfly valve and the proportional mixer to facilitate hot air to enter the interior of the valve group.
[0010] Preferably, the other end of the fourth control valve is fixedly connected to an air duct, which passes through one side of the top of the box and extends to the interior of the box. One side of the lower surface of the air duct is fixed with multiple branch pipes that are interconnected. The bottom of the box is embedded with a dustproof net that is fixedly installed to facilitate heating and drying the interior of the box and reduce corrosion of the box.
[0011] Preferably, a discharge pipe is fixedly connected to one side of the outer surface of the mixed liquid outlet pipe and is located between the proportioning mixer and the system-side signal butterfly valve. A fifth control valve is fixedly installed inside the discharge pipe to detect the condition of the mixed foam liquid, thereby facilitating adjustment.
[0012] The utility model provides a foam water spray control valve group. It has the following beneficial effects:
[0013] 1. This foam water spray control valve group can discharge all the water and foam in the valve group during maintenance and repair through the drainage mechanism, avoiding the inconvenience caused by the outflow of liquid during maintenance and causing pollution and corrosion to the interior of the box, thereby solving the problem that the existing valve group has no drainage function, and the remaining liquid in the valve group will flow into the box when disassembled for maintenance, causing inconvenience and causing pollution and corrosion to the interior of the box.
[0014] 2. This foam water spray control valve group can dry the inside of the box through the drying mechanism, so that the valve group and the inside of the box are in a dry environment, avoiding the valve group and the box from being corroded by water vapor, thereby increasing the service life, thereby solving the problem that the existing valve group is installed inside the box, has no dehumidification function, is easily corroded by water vapor and reduces the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the internal structure of the utility model;
[0016] Figure 2 It is a partial structural schematic diagram of the utility model;
[0017] Figure 3 It is a schematic diagram of the overall structure of the utility model.
[0018] In the figure, 1, box body; 2, fire water inlet pipe; 3, foam inlet pipe; 4, first control valve; 5, water supply side signal butterfly; 6, second control valve; 7, filter; 8, balance valve; 9, solenoid valve; 10, proportion mixer; 11, mixed liquid outlet pipe; 12, system side signal butterfly valve; 13, drainage mechanism; 131, drainage pipe; 132, drainage valve; 14, drying mechanism; 141, mounting plate; 142, hot air blower; 143, tee; 144, connecting pipe; 145, third control valve; 146, fourth control valve; 147, air duct; 148, branch pipe; 149, dust net; 15, discharge pipe; 16, fifth control valve. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Embodiment 1:
[0021] like Figures 1 to 3As shown, a foam water spray control valve group comprises a box body 1 and a box door rotatably connected to the surface of the box body 1 by hinges, a fire water inlet pipe 2 and a foam liquid inlet pipe 3 are fixedly connected through the bottom of the box body 1, a first control valve 4 and a water supply side signal butterfly 5 are fixedly installed in sequence inside the fire water inlet pipe 2, a second control valve 6, a filter 7, a balancing valve 8 and a solenoid valve 9 are fixedly installed in sequence inside the foam liquid inlet pipe 3, a proportioning mixer 10 is fixedly connected between the fire water inlet pipe 2 and the foam liquid inlet pipe 3, a mixed liquid outlet pipe 11 is fixedly connected to the liquid outlet end of the proportioning mixer 10, a system side signal butterfly valve 12 is fixedly installed inside the mixed liquid outlet pipe 11, a discharge pipe 15 is fixedly connected through one side of the outer surface of the mixed liquid outlet pipe 11 and located between the proportioning mixer 10 and the system side signal butterfly valve 12, a fifth control valve 16 is fixedly installed inside the discharge pipe 15. Fire water and foam enter the proportioning mixer 10 through the fire water inlet pipe 2 and the foam inlet pipe 3 respectively to be mixed to obtain a mixed foam liquid, and then output through the mixed liquid outlet pipe 11 to provide a predetermined proportion of water-film-forming foam mixed liquid to the system network, and spray foam through a dedicated foam nozzle to extinguish the fire.
[0022] Embodiment 2:
[0023] like Figure 1 and Figure 2 As shown, the outer surfaces of the fire water inlet pipe 2 and the foam liquid inlet pipe 3 are penetrated and fixedly communicated with a drainage mechanism 13, and the drainage mechanism 13 includes a drainage pipe 131, and the drainage pipe 131 penetrates the corresponding fire water inlet pipe 2 and the foam liquid inlet pipe 3, and one end of the two drainage pipes 131 is respectively located between the first control valve 4 and the water supply side signal butterfly 5 and between the second control valve 6 and the filter 7, and a drainage valve 132 is fixedly installed inside the drainage pipe 131, and one end of the drainage pipe 131 penetrates the bottom of the box body 1 and extends to the outside of the box body 1. When performing maintenance and overhaul, the corresponding drainage valve 132 can be opened, and then the water and foam in the valve group can be completely discharged through the drainage pipe 131, so as to avoid the inconvenience caused by the outflow of liquid during maintenance and the pollution and corrosion to the inside of the box body 1, thereby solving the problem that the existing valve group has no drainage function, and the remaining liquid in the valve group will flow into the box body when disassembled for maintenance, causing inconvenience and pollution and corrosion to the inside of the box body.
[0024] Embodiment 3:
[0025] like Figure 1 and Figure 2As shown, a drying mechanism 14 is installed through the outer surface of the box body 1, and the drying mechanism 14 includes a mounting plate 141 fixedly mounted on one side of the outer surface of the box body 1, and a hot air blower 142 is fixedly mounted on the upper surface of the mounting plate 141, and the air outlet end of the hot air blower 142 is fixedly connected to a tee 143, and the other two ends of the tee 143 are respectively fixedly connected to a connecting pipe 144 and a fourth control valve 146, and the other end of the connecting pipe 144 is connected to the mixed liquid outlet pipe 11, and a third control valve 145 is fixedly mounted inside the connecting pipe 144. One end of the connecting pipe 144 is located between the system-side signal butterfly valve 12 and the proportioning mixer 10. The other end of the fourth control valve 146 is fixedly connected to an air duct 147, which passes through one side of the top of the box body 1 and extends to the interior of the box body 1. A plurality of branch pipes 148 are fixedly interconnected on one side of the lower surface of the air duct 147. A dustproof net 149 is embedded and fixedly installed at the bottom of the box body 1. During maintenance, after the remaining liquid in the valve group is drained, the hot air blower 142 can be started, and the hot air generated by the hot air blower 142 enters the interior of the valve group, which can dry the liquid in the valve group to avoid liquid residue, and the hot air generated by the hot air blower 142 can be blown to the interior of the box body 1 through the branch pipe 148 on the air duct 147, thereby drying the interior of the box body 1, so that the valve group and the interior of the box body 1 are in a dry environment, avoiding the valve group and the box body 1 from being corroded by water vapor, thereby improving the service life, thereby solving the problem that the existing valve group is installed inside the box body, has no dehumidification function, is easily corroded by water vapor and reduces the service life.
[0026] Working principle: When in use, fire water and foam enter the proportioning mixer 10 through the fire water inlet pipe 2 and the foam inlet pipe 3 respectively to mix and obtain a mixed foam liquid, which is then output through the mixed liquid outlet pipe 11 to provide a predetermined proportion of water-film-forming foam mixed liquid to the system network, and the foam is sprayed through a special foam nozzle to extinguish the fire.
[0027] When performing maintenance, first close the first control valve 4, the second control valve 6 and the system-side signal butterfly valve 12. At this time, the valve group is in a closed state. Then open the two drain valves 132. Then, all the water and foam in the valve group can be discharged through the drain pipe 131 to avoid the inconvenience caused by the outflow of liquid during maintenance and the pollution and corrosion to the interior of the box body 1. This solves the problem that the existing valve group has no drainage function, and the remaining liquid in the valve group will flow into the box body when it is disassembled for maintenance, causing inconvenience and pollution and corrosion to the interior of the box body.
[0028] During maintenance, after the remaining liquid in the valve group is blown out, the hot air blower 142 can be started, and the hot air generated by the hot air blower 142 enters the interior of the valve group, which can dry the liquid in the valve group to avoid liquid residue, and the hot air generated by the hot air blower 142 can be blown to the interior of the box 1 through the branch pipe 148 on the air duct 147, thereby drying the interior of the box 1, making the valve group and the interior of the box 1 in a dry environment, avoiding the valve group and the box 1 from being corroded by water vapor, thereby increasing the service life, thereby solving the problem that the existing valve group is installed inside the box, has no dehumidification function, is easily corroded by water vapor and reduces the service life.
[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A foam water spray control valve assembly, comprising a housing (1) and a housing door rotatably connected to the surface of the housing (1) via a hinge, characterized in that: The bottom of the box body (1) is penetrated and fixedly connected with a fire water inlet pipe (2) and a foam liquid inlet pipe (3); the interior of the fire water inlet pipe (2) is fixedly installed with a first control valve (4) and a water supply side signal butterfly (5); the interior of the foam liquid inlet pipe (3) is fixedly installed with a second control valve (6), a filter (7), a balancing valve (8) and a solenoid valve (9); a proportioning mixer (10) is fixedly connected between the fire water inlet pipe (2) and the foam liquid inlet pipe (3); the liquid outlet end of the proportioning mixer (10) is fixedly connected with a mixed liquid outlet pipe (11); the interior of the mixed liquid outlet pipe (11) is fixedly installed with a system side signal butterfly valve (12); the outer surfaces of the fire water inlet pipe (2) and the foam liquid inlet pipe (3) are penetrated and fixedly connected with a drainage mechanism (13); the outer surface of the box body (1) is penetrated and fixedly installed with a drying mechanism (14); The drainage mechanism (13) comprises a drainage pipe (131), wherein the drainage pipe (131) penetrates the corresponding fire water inlet pipe (2) and the foam liquid inlet pipe (3), and one end of the two drainage pipes (131) is respectively located between the first control valve (4) and the water supply side signal butterfly (5) and between the second control valve (6) and the filter (7), and a drainage valve (132) is fixedly installed inside the drainage pipe (131).
2. The foam water spray control valve assembly according to claim 1, characterized in that: One end of the drainage pipe (131) passes through the bottom of the box body (1) and extends to the outside of the box body (1).
3. The foam water spray control valve assembly according to claim 1, characterized in that: The drying mechanism (14) comprises a mounting plate (141) fixedly mounted on one side of the outer surface of the housing (1); a hot air blower (142) is fixedly mounted on the upper surface of the mounting plate (141); an air outlet end of the hot air blower (142) is fixedly connected to a tee (143); the other two ends of the tee (143) are respectively fixedly connected to a connecting pipe (144) and a fourth control valve (146); the other end of the connecting pipe (144) is connected to a mixed liquid outlet pipe (11); and a third control valve (145) is fixedly mounted inside the connecting pipe (144).
4. The foam water spray control valve assembly according to claim 3, characterized in that: One end of the connecting pipe (144) is located between the system-side signal butterfly valve (12) and the proportioning mixer (10).
5. The foam water spray control valve assembly according to claim 4, characterized in that: The other end of the fourth control valve (146) is fixedly connected to an air duct (147), and the air duct (147) passes through one side of the top of the box body (1) and extends to the interior of the box body (1). A plurality of branch pipes (148) are fixedly connected to one side of the lower surface of the air duct (147), and a dustproof net (149) is embedded and fixedly installed at the bottom of the box body (1).
6. The foam water spray control valve assembly according to claim 1, characterized in that: A discharge pipe (15) is fixedly connected to and penetrates one side of the outer surface of the mixed liquid outlet pipe (11) and is located between the proportioning mixer (10) and the system-side signal butterfly valve (12), and a fifth control valve (16) is fixedly installed inside the discharge pipe (15).