CN116920648A

CN116920648A - Pressure type proportional mixing device

Info

Publication number: CN116920648A
Application number: CN202311210024.5A
Authority: CN
Inventors: 石伟金; 高坤; 许开城; 许连治
Original assignee: Quanzhou Shanhe Fire Protection Technology Co ltd
Current assignee: Quanzhou Shanhe Fire Protection Technology Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2023-10-24
Anticipated expiration: 2043-09-19
Also published as: CN116920648B

Abstract

The application relates to the field of mixing devices, in particular to a pressure type proportional mixing device, which structurally comprises: foam jar, foam jar are connected with the blender through first control pipe and second control pipe respectively, have installed the blow off pipe in foam jar bottom, the blender is including intake pipe and hybrid tube, and hybrid tube and intake pipe junction are equipped with the interior sleeve pipe along radial activity, and the interior sleeve pipe that the device after the improvement passes through driver control spout surface removes, and then makes interior sleeve pipe and packing ring separation rivers get into the area that the water conservancy diversion hole is easy to corrode to sliding sleeve department through the gap of retaining ring and wash away, reduce the residual of foam to because most rivers are the body through sliding sleeve and water conservancy diversion cover, still can produce the negative pressure, the negative pressure has improved the rivers velocity of flow that flows through from the water conservancy diversion hole, and then has improved clean effect.

Description

Pressure type proportional mixing device

Technical Field

The application relates to a pressure type proportional mixing device, and belongs to the field of mixing devices.

Background

The fire-fighting pressure type proportional mixing device is a fire-fighting equipment for mixing water and fire-proof foam according to a certain proportion so as to raise fire-extinguishing effect.

The mixer utilizes the pressure differential one side of both sides to extrude the foam in the foam jar, and the opposite side is through producing the negative pressure with foam suction, and the foam and the water mixing of suction get into the trunk line, and in the well pipe one side that produces the negative pressure because contain corrosive substance such as acid, alkali in the foam liquid, cause the corruption easily, and the overlook that this department foam liquid concentration is high easily causes the seam crossing and then causes the condition emergence of pipe fitting to leak.

Disclosure of Invention

Aiming at the defects of the prior art, the application aims to provide a pressure type proportional mixing device so as to solve the problems that corrosive substances such as acid, alkali and the like are contained in foam liquid at one side of a middle pipe for generating negative pressure, so that corrosion is easy to occur, and the condition that the seam is overlooked and water leakage of a pipe fitting occurs due to high concentration of the foam liquid at the position.

In order to achieve the above object, the present application is realized by the following technical scheme: a pressure type proportional mixing device, which structurally comprises: the foam tank is connected with the mixer through the first control pipe and the second control pipe respectively, a drain pipe is arranged at the bottom of the foam tank, the mixer comprises a flow inlet pipe and a mixing pipe, and an inner sleeve pipe which moves along the radial direction is arranged at the joint of the mixing pipe and the flow inlet pipe.

Preferably, the connecting pipe and the inflow pipe of the mixing pipe are provided with grooves, the grooves are mutually nested with gaskets, and the middle part of each gasket is provided with an inner sleeve.

Preferably, the inflow pipe is provided with a detector and a first control valve, and the inflow pipe is connected with the inner cavity of the foam tank through the first control valve.

Preferably, a second control valve communicated with the foam tank is arranged at the top of the connecting pipe, a sliding groove is formed in the inner wall of the pipe body, a driver is mounted on the sliding groove, and the sliding groove is mechanically connected with the inner sleeve through the driver.

Preferably, the surface of the ring body of the gasket is provided with a first inner groove, the surface of the first inner groove is provided with more than two diversion holes, the diversion holes are distributed in an array mode, one side of the ring body, which is attached to the pipe body, is provided with a convex embedded ring, the embedded ring is matched with the embedded groove of the connecting pipe, and a catheter is installed at the pipe orifice of the first inner groove.

Preferably, the inner sleeve comprises a pipe body formed by a sliding sleeve and a flow guiding sleeve, the sliding sleeve is provided with a check ring, the diameter of the check ring is consistent with the inner diameter of the inflow pipe, the check ring and the first inner groove are mutually nested, the check ring is provided with flow guiding grooves, the flow guiding grooves are distributed on the surface of the check ring at equal intervals, a sliding plate is arranged at the bottom of the pipe body formed by the sliding sleeve and the flow guiding sleeve, and the sliding plate is matched with a driver of the sliding groove.

Preferably, the driver is intermeshed with the second internal and external teeth in the slide plate via external teeth.

Preferably, the catheter comprises a second catheter body, a guide bottom groove is fixed at the bottom of the second catheter body, a fixing ring is embedded in the inner wall of the second catheter body and fixedly connected with the second catheter body, a guide groove is arranged on the surface of the second catheter body and is consistent with the guide hole of the guide bottom groove in direction, the bottom of the guide bottom groove is movably connected with the surface of the guide sleeve through an auxiliary bottom groove, and the guide groove is vertically and slidably connected with the protrusion on the inner surface of the second control valve.

Preferably, the surface of the sliding sleeve is movably connected with the inner hole of the gasket.

Preferably, the inlet pipe joint is provided with a sliding groove matched with the sliding plate.

The pressure type proportional mixing device has the following effects:

the improved device controls the inner sleeve on the surface of the chute to move through the driver, so that the inner sleeve and the gasket separate water flow enters the guide hole through the gap of the check ring to wash out the easily corroded area at the sliding sleeve, foam residue is reduced, negative pressure still can be generated due to the fact that most of water flow passes through the pipe body of the sliding sleeve and the guide sleeve, the flow velocity of the water flow flowing through the guide hole is improved by the negative pressure, and then the cleaning effect is improved.

When the water conservancy diversion cover removes the back second inside groove and moves gradually under the effect of gravity, the guide slot that is located the second control valve inner wall this moment appears, and the water flow flows in at the second body in the guide slot when flowing the pipe wall inside collide the inner wall of second body, has significantly reduced the foam stoste and has improved the life of second control valve in pipeline inside.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a pressure type proportional mixing device according to the present application.

Fig. 2 is a schematic structural view of the mixer of the present application.

FIG. 3 is a schematic structural view of a mixing tube according to the present application.

Fig. 4 is a schematic structural view of the inner sleeve of the present application.

Fig. 5 is a schematic cross-sectional view of a connecting tube according to the present application.

Fig. 6 is a schematic structural view of a gasket of the present application.

Fig. 7 is a schematic structural view of a connecting tube according to the present application.

Fig. 8 is a schematic cross-sectional view of the present application.

Fig. 9 is a schematic view of the structure of the catheter of the present application.

In the figure:

1. a foam tank; 2. a first control tube; 3. a mixer; 4. a second control tube; 5. a blow-down pipe;

31. a mixing tube; 32. a flow inlet pipe; 33. a detector; 34. a first control valve;

311. a connecting pipe; 312. a gasket; 313. an inner sleeve;

3111. a tube body; 3112. a second control valve; 3113. a chute; 3114. a driver; 3115. a fitting groove; 3116. a catheter;

3121. a ring body; 3122. a first inner tank; 3123. a deflector aperture; 3124. a jogging ring;

3131. a sliding sleeve; 3132. a retainer ring; 3133. a diversion trench; 3134. a diversion sleeve; 3135. a slide plate; 3136. a second inner tank;

161. a second tube body; 162. a guide groove; 163. a fixing ring; 164. a guide bottom groove; 165. auxiliary bottom slots.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application.

In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the prior art, as the foam liquid contains corrosive substances such as acid, alkali and the like on one side of the middle pipe for generating negative pressure, corrosion is easy to occur, and the condition that the seam is overlooked and water leakage is caused by the high concentration of the foam liquid is easy to occur, in order to solve the problems, the scheme provides the following technical scheme:

referring to fig. 1 to 9, the present application provides a pressure type proportional mixing device technical scheme: the structure comprises: the foam tank 1, foam tank 1 is connected with blender 3 through first control pipe 2 and second control pipe 4 respectively, has installed blow off pipe 5 in foam tank 1 bottom, and blender 3 includes intake pipe 32 and hybrid tube 31, and hybrid tube 31 and intake pipe 32 junction are equipped with along radial movable's interior sleeve pipe 313, and hybrid tube 31's connecting pipe 311 and intake pipe 32 connector are equipped with the recess, and the recess is nested each other with packing ring 312, and the mid-mounting of packing ring 312 has interior sleeve pipe 313.

According to the application, a rubber capsule is arranged in the foam tank 1, foam stock solution is filled in the capsule, a first control pipe 2 on the surface of the foam tank 1 is communicated with the outside of the capsule and is used for inputting water flow to squeeze the capsule, a second control pipe 4 connected with a mixer 3 is connected with the inside of the capsule and is used for mixing foam stock solution output with a main pipeline, and a drain pipe 5 for cleaning and draining is arranged at the bottom of the foam tank 1, so that the stock solution is required to be discharged for replacement when the foam is not used for a long time due to the shelf life of the foam, and further the fire extinguishing effect can be ensured.

The foam inside the capsule is mainly mixed by the mixer 3, the inflow pipe 32 of the mixer 3 is used for connecting a fire-fighting main pipeline, the detector 33 is arranged on the surface of the inflow pipe 32 and used for detecting water pressure, the inflow pipe 32 is connected with the first control pipe 2 through the first control valve 34, the inner sleeve 313 is arranged between the inflow pipe 32 and the connecting pipe 311, and the inner sleeve 313 is supported by the gasket 312.

The sliding sleeve 3131 of the inner sleeve 313 and the guide sleeve 3134 form a conical pipe, when water flows through the pipe body, the flow speed of the water is improved due to the reduction of the opening, the joint of the second control valve 3112 and the pipe body 3111 is affected by negative pressure, water flows for extruding the capsule from the first control valve 34 are matched, foam liquid in the capsule body is output, the foam liquid is quickly mixed with the water flow in the pipe body 3111 after being output, the foam liquid is conveyed into a fire-fighting pipe network for fire-fighting, the mixing amount of the foam can be controlled through a valve on the surface of the second control valve 3112, the waste of the foam is reduced through proportion adjustment, the fire-fighting effect is better, and the convenience of use is improved.

In the prior art, the sliding sleeve 3131 and the guiding sleeve 3134 form a pipe body with an integrated structure, then the pipe body is directly locked between the inflow pipe 32 and the mixing pipe 31, foam liquid moves by negative pressure generated by water flow, once the water flow of the main pipe stops flowing, foam becomes liquid after defoaming and stays in a gap of the inner sleeve 313, so that the high-concentration foam liquid causes corrosion at a butt joint, the pipe body is damaged, water leakage and the like are caused over time, and the maintenance is very inconvenient.

In order to solve the above problem, the bottoms of the sliding sleeve 3131 and the guiding sleeve 3134 are provided with a sliding plate 3135, referring to fig. 4, the sliding plate 3135 is nested in the inner groove of the sliding groove 3113, the inner teeth of the second inner groove 3136 of the sliding plate 3135 are matched with the driver 3114, and the inner sleeve 313 is driven to slide on the surface of the sliding groove 3113 by the driver 3114, so that the retainer 3132 on the surface of the sliding sleeve 3131 is separated from the gasket 312.

The middle through hole of the ring body 3121 of the gasket 312 is matched with the inner sleeve 313, in order to keep the inner sleeve 313 flush with the ring body 3121 in the closing process, a first inner groove 3122 is formed in the ring body 3121, a gap is reduced by keeping the inner groove 3121 flush with the ring body 3121 after the closing, a diversion hole 3123 is formed in the first inner groove 3122, the diversion hole 3123 is mainly used for cleaning the gap, so that the flowing water can pass through, when the foam liquid is conveyed, the baffle ring 3132 blocks the diversion hole 3123, so that most of the flowing water is convenient to form negative pressure to convey the foam liquid through the sliding sleeve 3131 and the diversion sleeve 3134 so as to combine the foam liquid.

In order to improve the sealing performance, a fitting ring 3124 is mounted at the other end of the ring body 3121, and is fitted into the fitting groove 3115, and a sealing layer is formed by fitting the protrusion of the fitting ring 3124 and the groove of the fitting groove 3115, thereby improving the sealing effect.

In order to improve the service life of the nozzle of the second control valve 3112 and back flush the inside of the nozzle, a movable liquid guide tube 3116 is installed at the bottom of the second control valve 3112, the liquid guide tube 3116 mainly comprises a second tube body 161 matched with the second control valve 3112, the second tube body 161 is matched with a protrusion on the inner wall of the second control valve 3112 through a guide groove 162, a guide bottom groove 164 at the bottom of the second tube body 161 is consistent with the water flow direction, a fixing ring 163 is welded on the inner wall to serve as the upper edge for fixing the second tube body 161, the guide bottom groove 164 at the bottom is attached to the surface of a guide sleeve 3134, foam raw liquid flows out from through grooves of four annular surfaces of the guide bottom groove 164 when the foam raw liquid is discharged, and direct contact with the guide sleeve 3134 is blocked through the bottom surface of the guide bottom groove 164, so that corrosion is reduced.

In order to ensure that the foam fire extinguishing system can normally operate, a manager needs to test regularly, and after the test is finished, the application can clean the periphery of the inner sleeve 313 in a cleaning mode so as to avoid corrosion.

The fire extinguishing system first drives the driver 3114 to operate under the clearance mode, the driver 3114 can adopt stepper motor, cooperate through self encoder, the system can set up the stroke that interior sleeve 313 removed and carry out an automatic spacing and conveniently adjust the rivers that control passed, balance the rivers that pass through from the gap and the rivers size through sliding sleeve 3131 and water conservancy diversion cover 3134, drive the effect that improves the washing from the rivers that pass through the gap through the negative pressure, the gear of driver 3114 main shaft drives sliding sleeve 3131 and slide 3135 of water conservancy diversion cover 3134 bottom at spout 3113 and removes, cooperate each other with sliding sleeve 3131 and form the slide, make water conservancy diversion cover 3134 increase the effect that the negative pressure produced in the middle, the diameter of retaining ring 3132 is unanimous with the internal diameter of inflow pipe 32, when removing, retaining ring 3132 imbeds the inside groove of inflow pipe 32, the inner wall of inflow pipe 32 forms another slide and avoids because the washing of high-speed rivers leads to the rocking of sliding sleeve 3131, and cause the damage of oneself in continuous rocking process.

After the movement, the retainer ring 3132 is separated from the first inner groove 3122 of the ring body 3121, at this time, when the water flows through the first control valve 34, the water flows through the diversion hole 3123 on the surface of the first inner groove 3122, the ring surface of the sliding sleeve 3131 is flushed, and the diversion trench 3133 is opened on the ring surface of the retainer ring 3132 to increase the passing space of the water flow, and as most of the water flows still passes through the sliding sleeve 3131 and the pipe body of the diversion sleeve 3134, negative pressure still can be generated, at this time, the valve of the second control valve 3112 is closed, and the negative pressure accelerates the water flow flowing through the ring surface of the sliding sleeve 3131.

When the guide sleeve 3134 moves, the second inner groove 3136 gradually moves downwards under the action of gravity, and at this time, the guide groove 162 located on the inner wall of the second control valve 3112 appears, and when water flows, the water flows from the guide groove 162 into the inner wall of the second pipe body 161 to collide with the inner wall of the second pipe body 161, so that the residue of the foam stock solution in the pipeline is greatly reduced.

The foregoing has described only the basic principles and preferred embodiments of the present application, and many variations and modifications will be apparent to those skilled in the art in light of the above description, which variations and modifications are intended to be included within the scope of the present application.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A pressure type proportional mixing device, which structurally comprises: foam jar (1), foam jar (1) are connected with blender (3) through first control pipe (2) and second control pipe (4) respectively, have installed blow off pipe (5), its characterized in that in foam jar (1) bottom: the mixer (3) comprises a flow inlet pipe (32) and a mixing pipe (31), and an inner sleeve (313) which moves along the radial direction is arranged at the joint of the mixing pipe (31) and the flow inlet pipe (32);

connecting pipe (311) and inflow pipe (32) connector of hybrid tube (31) are equipped with the recess, and the recess is nested each other with packing ring (312), the mid-mounting of packing ring (312) has interior sleeve pipe (313), connecting pipe (311) top is equipped with second control valve (3112) with foam jar (1) intercommunication, and body (3111) inner wall is equipped with spout (3113), and driver (3114) are installed in spout (3113), and through driver (3114) and interior sleeve pipe (313) mechanical connection.

2. A pressure type proportioning device as set forth in claim 1, wherein: the detector (33) and the first control valve (34) are arranged on the inflow pipe (32), and the inflow pipe (32) is connected with the inner cavity of the foam tank (1) through the first control valve (34).

3. A pressure type proportioning device as set forth in claim 1, wherein: the surface of the ring body (3121) of the gasket (312) is provided with a first inner groove (3122), the surface of the first inner groove (3122) is provided with more than two diversion holes (3123), the diversion holes (3123) are distributed in an array, the ring body (3121) is attached to one side of the pipe body (3111) and is provided with a protruding jogged ring (3124), and is matched with a jogged groove (3115) of the connecting pipe (311) through the jogged ring (3124), and a liquid guide pipe (3116) is arranged at the pipe orifice of the first inner groove (3122).

4. A pressure type proportioning device as set forth in claim 1, wherein: interior sleeve pipe (313) include the body that sliding sleeve (3131) and water conservancy diversion cover (3134) formed, sliding sleeve (3131) are equipped with retaining ring (3132), retaining ring (3132) are nested each other with first inside groove (3122), guiding gutter (3133) have been seted up to retaining ring (3132), and guiding gutter (3133) equidistance distributes and is the surface at retaining ring (3132), sliding sleeve (3131) are equipped with slide (3135) with the body bottom that water conservancy diversion cover (3134) formed, cooperate with driver (3114) of spout (3113) through slide (3135).

5. A pressure type proportioning device as set forth in claim 4, wherein: the driver (3114) is intermeshed with external teeth of a second internal groove (3136) in the sled (3135).

6. A pressure type proportioning device as set forth in claim 3, wherein: the catheter (3116) comprises a second tube body (161), a guide bottom groove (164) is fixed at the bottom of the second tube body (161), a fixing ring (163) is embedded in the inner wall of the second tube body (161), the fixing ring (163) is fixedly connected with the second tube body (161), a guide groove (162) is formed in the surface of the second tube body (161), the guide groove (162) is consistent with the guide hole of the guide bottom groove (164), the bottom of the guide bottom groove (164) is movably connected with the surface of a guide sleeve (3134) through an auxiliary bottom groove (165), and the guide groove (162) is connected with the protrusion of the inner surface of the second control valve (3112) in a vertical sliding mode.

7. A pressure type proportioning device as set forth in claim 4, wherein: the surface of the sliding sleeve (3131) is movably connected with the inner hole of the gasket (312).

8. A pressure type proportioning device as set forth in claim 1, wherein: the inlet pipe (32) interface is provided with a chute matched with the slide plate (3135).