Full-automatic foam proportion adjusting device

Abstract

The invention discloses a full-automatic foam proportion adjusting device, which belongs to the technical field of foam proportion adjusting equipment and comprises a water inlet pipe, a water outlet pipe and a conical opening assembly arranged between the water inlet pipe and the water outlet pipe. After the conical opening assembly is installed between the water inlet pipe and the water outlet pipe through the connecting screw rod and the nut, the embedded rod body is continuously screwed into the inner through pipe body, and when the embedded rod body is continuously screwed into the inner through pipe body, the hydraulic pressure in the inner through pipe body is continuously increased, thrust is generated on the anti-loosening clamping head, and therefore the anti-loosening effect is achieved. When the taper pipe is impacted by water flow in the water inlet pipe and vibrates to cause the nut to reversely rotate and loosen, the nut is limited to further loosen after the anti-loosening clamping head is clamped into the limiting clamping groove in the side wall of the inner cavity of the nut, so that the taper opening assembly is firmly fixed; and the situation that the mixing proportion of water and foam liquid is imbalanced due to the fact that the conical opening assembly is loosened due to impact vibration of water flow is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of foam ratio adjustment equipment, and more specifically, to a fully automatic foam ratio adjustment device. Background Art

[0002] Foam fire extinguishing system refers to a fire extinguishing measure consisting of a complete set of equipment and procedures, mostly used for flammable liquid fires. The foam proportioning mixer is the "nerve center" of the foam fire extinguishing system. There are pressure-type air foam proportioning mixers, ring pump foam proportioning mixers, pipeline foam proportioning mixers and other types of foam proportioning mixers. Among them, the pressure-type air foam proportioning mixer is a commonly used foam proportioning mixer.

[0003] The pressure-type foam proportioning mixer mainly utilizes the Venturi principle. When pressurized water enters the proportioning mixer from the water inlet pipe, it passes through the conical tube located in the middle of the proportioning mixer and accelerates into the water outlet pipe. The water flow rate in the water outlet pipe accelerates, causing the air pressure in the water outlet pipe to decrease, and a negative pressure difference is generated between the inside of the water outlet pipe and the foam liquid storage tank, so that the foam liquid in the storage tank enters the water outlet pipe through the foam liquid pipe connected to the water outlet pipe of the proportioning mixer. Then, the amount of foam liquid mixed with water is adjusted by controlling the flow rate of the foam liquid, thereby preparing foam-water mixtures with different mixing ratios.

[0004] In the process of preparing foam-water mixture by pressure foam proportioning mixer, when water enters the conical tube from the water inlet pipe, the narrow mouth of the conical tube causes high-speed impact and vibration when the liquid flows through it. Long-term continuous fluid impact and vibration will cause the bolts connecting the conical tube to loosen due to impact and vibration, thereby loosening the conical tube, resulting in an imbalance in the mixing ratio of water and foam liquid, affecting the fire extinguishing effect.

[0005] In view of this, we propose a fully automatic foam ratio adjustment device. Summary of the invention

[0006] Technical problem to be solved: The purpose of this application is to provide a fully automatic foam ratio adjustment device to solve the technical problems raised in the above-mentioned background technology.

[0007] Technical solution: The technical solution of the present application provides a fully automatic foam ratio adjustment device, including an inlet pipe, an outlet pipe and a cone-shaped assembly arranged between the inlet pipe and the outlet pipe, the two ends of the inlet pipe are connected with a first connecting flange, the two ends of the outlet pipe are connected with a second connecting flange, the cone-shaped assembly includes a centering flange, a cone tube is connected to the centering flange, a plurality of connecting screws are evenly inserted and penetrated on both end surfaces of the centering flange, a nut is threadedly connected to each connecting screw, a circle of cone-shaped cavity is arranged inside the wall thickness of the cone tube, and a circle of annular cavity connected to the cone cavity is arranged inside the wall thickness of the centering flange; An inner tube body is provided inside the wall thickness of the connecting screw, and a plurality of openings arranged in a circular array and connected to the inner cavity of the inner tube body are evenly opened on the side wall of the connecting screw, an anti-loosening clamp is sealingly and slidingly connected in the opening, and a tension spring is connected to the anti-loosening clamp, and the end of the tension spring away from the anti-loosening clamp is connected to a base fixedly connected to the inner cavity of the inner tube body, the interior of the conical cavity, the annular cavity and the inner tube body are all filled with a liquid medium part, an embedded rod body is provided inside the inner tube body, and a plurality of limiting grooves arranged in a circular array and connected to the inner cavity side wall of the nut are evenly opened.

[0008] As an optional solution of the technical solution of this application document, the cone tube has a conical structure; The large opening of the cone tube faces the water inlet pipe, and the small opening of the cone tube faces the water outlet pipe.

[0009] As an optional solution of the technical solution of this application document, bypass pipes are connected to the side walls of the water inlet pipe and the water outlet pipe; One end of the inflow pipe is connected to the input end of the foam tank, and the other end is connected to the bypass pipe connected to the side wall of the water inlet pipe; One end of the foam pipe extends from the top of the foam tank to the lower part of the inner cavity of the foam tank, and the other end is connected to the bypass pipe connected to the side wall of the water outlet pipe.

[0010] As an optional solution of the technical solution of the present application document, one end of the inner tube body passes through the interior of the centering flange and is connected with the annular cavity, and the other end passes through the end of the connecting screw.

[0011] As an optional solution to the technical solution of the present application document, the embedded rod body is threadedly sealed and connected to the inner cavity of the corresponding inner through tube body.

[0012] As an optional solution of the technical solution of the present application document, when the tension spring is in a relaxed state, an end of the anti-loosening clamp away from the tension spring extends out from the opening.

[0013] As an optional solution to the technical solution of the present application document, holes are provided on the first connecting flange and the second connecting flange at positions corresponding to the positions on the connecting screw rod for the screw rod to pass through.

[0014] As an optional solution of the technical solution of the present application document, a hemispherical airbag is connected to one end of the embedded rod body extending into the inner cavity of the inner tube, and an inner bracket is connected to the interior of the hemispherical airbag; An insulating rod is inserted through the inner bracket, one end of the insulating rod is connected to the inner wall of the hemispherical airbag, and the other end extends into the inner cavity of the inner bracket and is connected to the triggering member A; The end of the inner cavity of the inner support is connected with a triggering member B; A warning light is connected to one end of the embedded rod body away from the hemispherical airbag.

[0015] As an optional solution of the technical solution of the present application document, when the triggering member A moves toward the direction of the triggering member B and contacts the triggering member B, the warning light is triggered to turn on.

[0016] Beneficial effects: One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages: 1. After inserting the tapered tube into the water outlet pipe, the connecting screws connected on both sides of the centering flange are respectively passed through the corresponding holes on the first connecting flange and the second connecting flange, and then the nuts are installed on the connecting screws and tightened, thereby facilitating the operator to quickly install the tapered mouth assembly between the water inlet pipe and the water outlet pipe.

[0017] 2. After the cone-mouth assembly in the present application is installed between the water inlet pipe and the water outlet pipe by connecting the screw and the nut, the embedded rod body is continuously screwed into the inner tube body. When the embedded rod body is continuously screwed into the inner tube body, the hydraulic pressure in the inner tube body is continuously increased and thrust is generated on the anti-loosening clamp. When the cone tube is vibrated by the impact of the water flow in the water inlet pipe, causing the nut to reverse and loosen, the anti-loosening clamp is buckled into the limiting groove on the side wall of the inner cavity of the nut to limit the nut from further loosening, thereby making the cone-mouth assembly firmly fixed, avoiding the loosening of the cone-mouth assembly due to the impact and vibration of the water flow, which may cause the mixing ratio of water and foam liquid to be unbalanced.

[0018] 3. After the embedded rod is loosened, the water pressure inside the inner tube is reduced. Under the elastic tension of the tension spring, the end of the anti-loosening card head originally buckled in the limit card slot is disengaged from the limit card slot, and then the nut is loosened and removed, so as to facilitate the operator to disassemble and assemble the cone mouth component.

[0019] 4. After the cone-mouth assembly is installed between the water inlet pipe and the water outlet pipe, when the cone tube in the cone-mouth assembly is ruptured by the impact of water flow, the liquid medium in the cone cavity gradually leaks out from the crack, so that the hydraulic pressure in the inner cavity of the inner tube body is gradually reduced, thereby reducing the water pressure acting on the surface of the hemispherical airbag. In the process of the hemispherical airbag gradually returning to its original state, the triggering member A is driven to contact with the triggering member B and trigger the warning light to turn on. The turned-on warning light sends an alarm signal to the staff, reminding the staff that the cone-mouth assembly has been damaged and needs to be replaced in time to avoid the situation where the mixing ratio of water and foam liquid is disturbed due to the damage of the cone tube caused by the impact of water flow while the cone-mouth assembly is firmly fixed, thereby ensuring the fire extinguishing effect of the pressure-type foam proportioning mixer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of this application.

[0021] Figure 2 It is a structural schematic diagram of the mixed regulation structure in this application.

[0022] Figure 3 For this application Figure 2 A schematic diagram of the enlarged local structure of part A.

[0023] Figure 4 For this application Figure 3 A schematic diagram of the enlarged local structure of part B.

[0024] Explanation of the numbers in the figure: 1. Foam tank; 2. Water inlet pipe; 3. Water outlet pipe; 4. First connecting flange; 5. Second connecting flange; 601. Centering flange; 602. Conical tube; 603. Conical cavity; 604. Annular cavity; 605. Nut; 607. Warning light; 608. Tension spring; 609. Anti-loosening clamp; 610. Embedded rod body; 611. Internal through tube body; 612. Connecting screw; 613. Hemispherical airbag; 614. Trigger B; 615. Trigger A; 616. Inner bracket; 7. Inflow pipe; 8. Foam tube. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. The present application is further described in detail below in combination with the drawings in the specification.

[0026] Reference Figures 1 to 3The embodiment of the present application provides a fully automatic foam ratio adjustment device, including an inlet pipe 2, an outlet pipe 3 and a cone-shaped assembly arranged between the inlet pipe 2 and the outlet pipe 3, the two ends of the inlet pipe 2 are connected with a first connecting flange 4, the two ends of the outlet pipe 3 are connected with a second connecting flange 5, the cone-shaped assembly includes a centering flange 601, a cone tube 602 is connected to the centering flange 601, a plurality of connecting screws 612 are evenly inserted and penetrated on both end surfaces of the centering flange 601, each connecting screw 612 is threadedly connected with a nut 605, a circle of cone-shaped cavity 603 is provided inside the wall thickness of the cone tube 602, a circle of annular cavity 604 connected to the cone cavity 603 is provided inside the wall thickness of the centering flange 601; a circle of annular cavity 604 connected to the cone cavity 603 is provided inside the wall thickness of the connecting screw 612; There is an inner tube body 611, and a plurality of openings arranged in a circular array and connected to the inner cavity of the inner tube body 611 are evenly opened on the side wall of the connecting screw 612, and an anti-loosening clamp 609 is sealed and slidably connected in the opening, and a tension spring 608 is connected to the anti-loosening clamp 609, and one end of the tension spring 608 away from the anti-loosening clamp 609 is connected to a base fixedly connected to the inner cavity of the inner tube body 611, and the interior of the conical cavity 603, the annular cavity 604 and the inner tube body 611 are all filled with a liquid medium part, and the liquid medium part is water. The inner tube body 611 is provided with an embedded rod body 610, and a plurality of limiting grooves arranged in a circular array and can be snapped into the end of the anti-loosening clamp 609 on the side wall of the inner cavity of the nut 605. The cone tube 602 has a conical structure; the large opening of the cone tube 602 faces the water inlet pipe 2, and the small opening of the cone tube 602 faces the water outlet pipe 3. The side walls of the water inlet pipe 2 and the water outlet pipe 3 are both connected with bypass pipes; one end of the inflow pipe 7 is connected to the input end of the foam tank 1, and the other end is connected to the bypass pipe connected to the side wall of the water inlet pipe 2; one end of the foam pipe 8 extends from the top of the foam tank 1 to the lower part of the inner cavity of the foam tank 1, and the other end is connected to the bypass pipe connected to the side wall of the water outlet pipe 3. One end of the inner tube body 611 penetrates into the interior of the centering flange 601 and communicates with the annular cavity 604, and the other end penetrates the end of the connecting screw 612. The embedded rod body 610 is threadedly sealed and connected to the inner cavity of the inner tube body 611 corresponding to it. When the tension spring 608 is in a relaxed state, the anti-loosening clamp 609 extends out of the opening away from the end of the tension spring 608. The first connecting flange 4 and the second connecting flange 5 are provided with holes corresponding to the positions on the connecting screw 612 for them to pass through. After inserting the conical tube 602 into the water outlet pipe 3, the connecting screws 612 connected to the two sides of the centering flange 601 are respectively passed through the corresponding holes on the first connecting flange 4 and the second connecting flange 5, and then the nut 605 is installed on the connecting screw 612 and tightened, so as to facilitate the operator to quickly install the conical mouth assembly between the water inlet pipe 2 and the water outlet pipe 3.After the cone-mouth assembly in the present application is installed between the water inlet pipe 2 and the water outlet pipe 3 by connecting the screw rod 612 and the nut 605, the embedded rod body 610 is continuously screwed into the inner tube body 611. When the embedded rod body 610 is continuously screwed into the inner tube body 611, the hydraulic pressure in the inner tube body 611 is continuously increased and generates thrust on the anti-loosening clamp 609. When the cone tube 602 is impacted by the water flow in the water inlet pipe 2 and vibrates, causing the nut 605 to reverse and loosen, when the anti-loosening clamp 609 is snapped into the limiting groove on the side wall of the inner cavity of the nut 605, it limits the nut 605 from loosening further, so that the cone-mouth assembly can be firmly fixed, avoiding the situation where the cone-mouth assembly is loosened due to the impact and vibration of the water flow, which may cause the mixing ratio of water and foam liquid to be unbalanced. After the embedded rod body 610 is loosened, the water pressure inside the inner tube body 611 is reduced. Under the elastic tension of the tension spring 608, the end of the anti-loosening clamp 609 originally buckled in the limiting slot is disengaged from the limiting slot, and then the nut 605 is loosened and removed, thereby facilitating the operator to disassemble and assemble the cone mouth assembly.

[0027] Reference Figure 3 and Figure 4 The embodiment of the present application provides a fully automatic foam ratio adjustment device, wherein the end of the embedded rod body 610 extending into the inner cavity of the inner tube body 611 is also connected to a hemispherical airbag 613, and the interior of the hemispherical airbag 613 is connected to an inner bracket 616; an insulating rod is inserted through the inner bracket 616, one end of the insulating rod is connected to the inner wall of the hemispherical airbag 613, and the other end extends into the inner cavity of the inner bracket 616 and is connected to a triggering member A615; a triggering member B614 is connected to the end of the inner cavity of the inner bracket 616; and a warning light 607 with a battery installed therein is connected to the end of the embedded rod body 610 away from the hemispherical airbag 613. When the triggering member A615 moves toward the triggering member B614 and contacts the triggering member B614, the warning light 607 is triggered to turn on. After the cone-mouth assembly is installed between the water inlet pipe 2 and the water outlet pipe 3, when the cone tube 602 in the cone-mouth assembly is broken by the impact of water flow, the liquid medium in the cone cavity 603 gradually leaks out from the crack, so that the hydraulic pressure in the inner cavity of the inner tube body 611 is gradually reduced, thereby reducing the water pressure acting on the surface of the hemispherical airbag 613. In the process of the hemispherical airbag 613 gradually returning to its original state, the triggering member A615 is driven to contact the triggering member B614 and trigger the warning light 607 to turn on. The turned-on warning light 607 sends an alarm signal to the staff, reminding the staff that the cone-mouth assembly has been damaged and needs to be replaced in time to avoid the situation where the mixing ratio of water and foam liquid is unbalanced due to the damage of the cone tube 602 caused by the impact of water flow while the cone-mouth assembly is firmly fixed.

Claims

1. A fully automatic foam ratio adjustment device, characterized in that: The invention comprises a water inlet pipe (2), a water outlet pipe (3) and a cone-shaped assembly arranged between the water inlet pipe (2) and the water outlet pipe (3), wherein the two ends of the water inlet pipe (2) are connected to a first connecting flange (4), and the two ends of the water outlet pipe (3) are connected to a second connecting flange (5), and the cone-shaped assembly comprises a centering flange (601), a cone tube (602) is connected to the centering flange (601), a plurality of connecting screws (612) are uniformly inserted and penetrated on both end surfaces of the centering flange (601), and a nut (605) is threadedly connected to each connecting screw (612), a circle of cone-shaped cavity (603) is arranged inside the wall thickness of the cone tube (602), and a circle of annular cavity (604) connected to the cone-shaped cavity (603) is arranged inside the wall thickness of the centering flange (601); An inner tube body (611) is provided inside the wall thickness of the connecting screw rod (612), and a plurality of openings arranged in a circular array and connected to the inner cavity of the inner tube body (611) are evenly provided on the side wall of the connecting screw rod (612), and an anti-loosening clamp (609) is sealingly and slidably connected in the opening, and a tension spring (608) is connected to the anti-loosening clamp (609), and one end of the tension spring (608) away from the anti-loosening clamp (609) is connected to a base fixedly connected to the inner cavity of the inner tube body (611), and the interior of the conical cavity (603), the annular cavity (604) and the inner tube body (611) are all filled with a liquid medium portion, and an embedded rod body (610) is provided inside the inner tube body (611), and a plurality of limiting grooves arranged in a circular array and capable of being buckled into the end of the anti-loosening clamp (609) are evenly provided on the inner cavity side wall of the nut (605).

2. The fully automatic foam ratio adjustment device according to claim 1, characterized in that: The cone tube (602) has a conical structure; The large opening of the conical tube (602) faces the water inlet pipe (2), and the small opening of the conical tube (602) faces the water outlet pipe (3).

3. The fully automatic foam ratio adjustment device according to claim 1, characterized in that: The side walls of the water inlet pipe (2) and the water outlet pipe (3) are both connected with bypass pipes; One end of the inflow pipe (7) is connected to the input end of the foam tank (1), and the other end is connected to a bypass pipe connected to the side wall of the water inlet pipe (2); One end of the foam pipe (8) extends from the top of the foam tank (1) into the lower part of the inner cavity of the foam tank (1), and the other end is connected to a bypass pipe connected to the side wall of the water outlet pipe (3).

4. The fully automatic foam ratio adjustment device according to claim 1 is characterized in that: One end of the inner tube body (611) penetrates into the interior of the centering flange (601) and communicates with the annular cavity (604), and the other end penetrates the end of the connecting screw (612).

5. The fully automatic foam ratio adjustment device according to claim 4 is characterized in that: The embedded rod body (610) is threadedly and sealingly connected to the inner cavity of the corresponding inner through tube body (611).

6. The fully automatic foam ratio adjustment device according to claim 1, characterized in that: When the tension spring (608) is in a relaxed state, an end of the anti-loosening clamp (609) away from the tension spring (608) extends out from the opening.

7. The fully automatic foam ratio adjustment device according to claim 1, characterized in that: The first connecting flange (4) and the second connecting flange (5) are both provided with holes at positions corresponding to the positions on the connecting screw rod (612) for the connecting screw rod (612) to pass through.

8. The fully automatic foam ratio adjustment device according to claim 1, characterized in that: One end of the embedded rod body (610) extending into the inner cavity of the inner tube body (611) is also connected to a hemispherical airbag (613), and the interior of the hemispherical airbag (613) is connected to an inner bracket (616); An insulating rod is inserted through the inner bracket (616), one end of the insulating rod is connected to the inner wall of the hemispherical airbag (613), and the other end extends into the inner cavity of the inner bracket (616) and is connected to the triggering member A (615); An initiator B (614) is connected to the end of the inner cavity of the inner support (616); A warning light (607) is connected to one end of the embedded rod (610) away from the hemispherical airbag (613).

9. The fully automatic foam ratio adjustment device according to claim 8, characterized in that: When the triggering member A (615) moves in the direction of the triggering member B (614) and contacts the triggering member B (614), the trigger warning light (607) turns on.

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