CN220385657U

CN220385657U - Foam mixer

Info

Publication number: CN220385657U
Application number: CN202320971061.7U
Authority: CN
Inventors: 吴海卫; 徐敏; 孙健; 贺源
Original assignee: Shanghai Pudong Special Fire Fighting Equipment Co ltd
Current assignee: Shanghai Pudong Special Fire Fighting Equipment Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2024-01-26
Anticipated expiration: 2033-04-25

Abstract

The application discloses foam mixer relates to foam mixer field, and it includes the body, the both ends of body are formed with water inlet and delivery port respectively, be formed with the runner that supplies fire water to circulate in this, be provided with the notes liquid pipe with the foam pump intercommunication on the body, the length direction and the runner of notes liquid pipe are parallel, the one end of notes liquid pipe is formed with the liquid outlet with the runner intercommunication, annotate liquid pipe and be located liquid outlet department and slide and be provided with the toper piece, this internal drive assembly who drives the toper piece and slide that is provided with, work as the toper piece slides to the delivery port side, the liquid outlet grow gradually; the driving assembly comprises an abutting plate, an elastic piece and a connecting piece, wherein the elastic piece is used for abutting the abutting plate on the inner side of the water inlet, and the abutting plate is connected with the conical block through the connecting piece. The present application helps to ensure stability of the mixing ratio at different fire water flows.

Description

Foam mixer

Technical Field

The present application relates to the field of foam mixers, and in particular to a foam mixer.

Background

The foam mixer is a nerve center of the foam fire extinguishing system, and the performance of the foam mixer is directly related to the success or failure of the foam fire extinguishing system to extinguish fire.

There is a balanced foam mixing device at present, including the foam mixer, but be formed with water inlet and delivery port on the foam mixer, but the fire control pipeline intercommunication of water inlet, delivery port and system's official network side intercommunication still are formed with the notes liquid mouth of foam pump intercommunication on the foam mixer, and the foam pump still communicates with the foam jar, installs venturi's unchangeable orifice plate in the foam mixer, with annotate the liquid mouth intercommunication, when the foam liquid flows from the orifice plate, mix with fire control water, realize the mixture of both.

However, when the fire-fighting water flow rate changes, the outflow caliber of the pore plate is fixed, and the flow rate of foam liquid is unchanged, so when the fire-fighting water flow rate changes, the mixing proportion of the pore plate and the foam liquid is correspondingly changed, when the fire-fighting water flow rate changes, the mixing proportion of the pore plate and the foam liquid is in a certain proportion range, the fire-fighting water is not greatly influenced, but when the fire-fighting water flow rate changes greatly, the corresponding foam mixing proportion also changes greatly, and the actual fire-fighting effect is influenced.

Disclosure of Invention

To ensure stability of the mixing ratio at different fire water flows, the present application provides a foam mixer.

The application provides a foam mixer adopts following technical scheme:

the foam mixer comprises a body, wherein a water inlet and a water outlet are respectively formed at two ends of the body, a runner for fire water circulation is formed in the body, a liquid injection pipe communicated with a foam pump is arranged on the body, the length direction of the liquid injection pipe is parallel to the runner, a liquid outlet communicated with the runner is formed at one end of the liquid injection pipe, a conical block is arranged at the position of the liquid outlet in a sliding manner, a driving assembly for driving the conical block to slide is arranged in the body, and when the conical block slides towards the water outlet, the liquid outlet gradually increases; the driving assembly comprises an abutting plate, an elastic piece and a connecting piece, wherein the elastic piece is used for abutting the abutting plate on the inner side of the water inlet, and the abutting plate is connected with the conical block through the connecting piece.

By adopting the technical scheme, when fire water flows to the water inlet, the abutting plate is pushed to move into the runner, a circulation gap is formed between the abutting plate and the water inlet, fire water flows into the runner through the circulation gap, the tapered block is driven to move to one side of the water outlet through the connecting piece when the abutting plate moves, the liquid outlet is opened, and foam liquid can flow out from the liquid outlet and be mixed with the fire water to reach foam mixed liquid with required proportion; when fire water flow increases, the moving distance of the corresponding abutting plate can be increased, the moving distance of the conical block is increased along with the moving distance, the opening of the liquid outlet is increased, and the foam liquid flow is increased, namely along with the change of the fire water flow, the foam liquid flow is changed along with the change of the fire water flow, and the stability of the proportion after the fire water flow and the foam liquid flow are mixed is further ensured.

Preferably, the liquid injection pipe comprises three-way pipe, shrouding and end plate, the intercommunication has the feed liquor pipe on the three-way pipe branch pipe, the feed liquor pipe runs through the body, the other end and the foam pump intercommunication of feed liquor pipe, the length direction and the runner parallel that the three-way pipe was responsible for, the shrouding sets up the one end of being responsible for at the three-way pipe, the end plate sets up the other end of being responsible for at the three-way pipe, the liquid outlet forms in the end plate one side opening part of keeping away from the three-way pipe.

By adopting the technical scheme, the liquid inlet pipe and the end plate are connected together by the three-way pipe, and compared with the integral casting molding, the difficulty of the manufacturing process is reduced.

Preferably, the tee pipe is connected with the end plate through a transition plate, and transition holes are formed in the transition plate at intervals.

Through adopting above-mentioned technical scheme, when the foam liquid gets into the three-way pipe from the feed liquor pipe, the foam liquid can be earlier through transition hole and then follow the liquid outlet and discharge, utilizes the transition hole to carry out transition buffering to the foam liquid for the foam liquid can evenly be followed the liquid outlet and discharged, and then guarantees foam liquid and fire-fighting water intensive mixing.

Preferably, the connecting piece is a connecting rod, one end of the connecting rod is connected with the abutting plate, and the other end of the abutting plate is connected with the conical block in a penetrating way.

Through adopting above-mentioned technical scheme, fire water promotes the butt board, drives the connecting rod and removes, and then realizes the removal of toper piece.

Preferably, the elastic piece is set as a compression spring, the compression spring is sleeved on the connecting rod, one end of the compression spring is abutted against the abutting plate, and the other end of the compression spring is abutted against the sealing plate.

Through adopting above-mentioned technical scheme, when fire water flow increases, the butt board can be under the rivers effect, moves to toper piece one side, and compression spring is in compression state this moment, and when fire water flow reduced, the corresponding promotion butt board of compression spring resets, realizes the dynamic change of liquid outlet size and fire water flow promptly.

Preferably, the sealing plate is close to the first embedded groove in the direction of the abutting plate, the abutting plate is close to the second embedded groove in the direction of the sealing plate, and two ends of the compression spring are embedded in the first embedded groove and the second embedded groove respectively.

Through adopting above-mentioned technical scheme, in practice, inlay the both ends of compression spring and establish first inlaying and establish the groove and the second inlays and establish the groove, can realize the connection of compression spring and shrouding, butt board, the assembly is more swift simple.

Preferably, the body is provided with the ring piece in water inlet department, be formed with the butt face with butt board butt on the ring piece, the butt face is the flaring setting along the direction that is close to the delivery port, one side that the butt board is close to the water inlet is formed with the toper guide face.

Through adopting above-mentioned technical scheme, when the fire water impacted the butt board, the butt board moved to delivery port side, and rivers can flow into the runner along toper guide face and butt face this moment, utilize toper guide face and butt to play the effect of guiding to rivers, help fire water smooth and easy circulation.

Preferably, flanges are arranged at two ends of the body.

By adopting the technical scheme, the connection with the fire-fighting pipeline can be realized by utilizing the two flange plates.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fire fighting water pushes the abutting plate to move, and simultaneously drives the conical block to move, namely the flow of the foam liquid changes along with the change of the fire fighting water flow, so that the stability of the proportion of the foam liquid and the fire fighting water after being mixed is guaranteed;

2. the liquid injection pipe is formed by assembling a liquid inlet pipe, a three-way pipe, a sealing plate and an end plate, so that the difficulty of an actual manufacturing process is reduced;

3. by means of the conical guide surface and the abutting surface, fire water can smoothly enter the flow passage.

Drawings

Fig. 1 is a schematic cross-sectional view of an embodiment of the present application.

Fig. 2 is a schematic diagram of the overall structure of the transition plate in the embodiment of the application, which mainly shows the structure of the transition hole.

Reference numerals: 1. a body; 11. a water inlet; 12. a water outlet; 13. a flange plate; 14. a flow passage; 2. a liquid inlet pipe; 3. a liquid injection pipe; 31. a three-way pipe; 32. a sealing plate; 321. a first embedded groove; 33. a transition plate; 34. an end plate; 4. a liquid outlet; 5. a transition hole; 6. a conical block; 7. a drive assembly; 71. an abutting plate; 711. a second embedded groove; 712. a tapered guide surface; 72. an elastic member; 73. a connecting piece; 8. a ring block; 81. an abutment surface.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a foam mixer.

Referring to fig. 1, the foam mixer comprises a body 1, wherein a water inlet 11 and a water outlet 12 are formed at two ends of the body 1, and flanges 13 are welded and fixed on the body 1 at the water inlet 11 and the water outlet 12 and are used for being in butt joint with a fire-fighting pipeline; a flow channel 14 is formed in the body 1, the water inlet 11 and the water outlet 12 are positioned at two ends of the flow channel 14, the body 1 is provided with a liquid inlet pipe 2 communicated with the foam pump, the liquid inlet pipe 2 penetrates through the body 1, the body 1 is internally provided with a liquid injection pipe 3, the length direction of the liquid injection pipe 3 is parallel to the length direction of the flow channel 14, and one end, far away from the foam pump, of the liquid inlet pipe 2 is communicated with the liquid injection pipe 3; one end of the liquid injection pipe 3 is provided with a liquid outlet 4 communicated with the flow channel 14.

Referring to fig. 1 and 2, the liquid injection pipe 3 is composed of a three-way pipe 31, a sealing plate 32, a transition plate 33 and an end plate 34, the length direction of the three-way pipe 31 is parallel to the flow channel 14, the liquid inlet pipe 2 is communicated with a branch pipe of the three-way pipe 31, the sealing plate 32 is arranged at one end of a main pipe of the three-way pipe 31 close to the water inlet 11 and used for sealing the three-way pipe 31, the transition plate 33 is arranged at one side of the main pipe of the three-way pipe 31 close to the water outlet 12, and a plurality of transition holes 5 are circumferentially arrayed on the transition plate 33; the end plate 34 is hollow cylindrical, the end plate 34 is fixedly arranged on one side of the transition plate 33, which is far away from the three-way pipe 31, and the liquid outlet 4 forms one end of the end plate 34, which is far away from the transition plate 33. The liquid injection pipe 3 is composed of a plurality of parts, the whole assembly is simple and convenient, and the manufacturing process is simpler than the integral molding.

The end plate 34 is positioned at the liquid outlet 4 and is provided with a conical block 6 in a sliding manner, the sliding direction of the conical block 6 is consistent with the length direction of the flow channel 14, when the conical block 6 slides to the water inlet 11 side, the conical block 6 can be blocked at the liquid outlet 4, the conical block 6 slides to the water outlet 12 side, and the opening degree of the liquid outlet 4 can be gradually increased; the driving assembly 7 for driving the conical block 6 to slide is arranged in the body 1, the driving assembly 7 comprises an abutting plate 71, an elastic piece 72 and a connecting piece 73, the elastic piece 72 is used for abutting the abutting plate 71 at the water inlet 11, the elastic piece 72 is arranged as a compression spring, a first embedded groove 321 is formed in one side, close to the abutting plate 71, of the sealing plate 32, a second embedded groove 711 is formed in one side, close to the sealing plate 32, of the abutting plate 71, and two ends of the compression spring are embedded in the first embedded groove 321 and the second embedded groove 711 respectively; the connecting piece 73 is set as a connecting rod, one end of which is fixedly connected with the abutting plate 71, the other end is penetrated with the sealing plate 32 and the transition plate 33 and is fixedly connected with the conical block 6, wherein the compression spring is sleeved on the connecting rod, and the connecting rod plays a role in guiding the deformation of the compression spring.

The body 1 is located water inlet 11 department welded fastening has the ring piece 8, is formed with the butt face 81 with butt plate 71 butt on the ring piece 8, and butt face 81 is the flaring setting along the direction that is close to delivery port 12, and butt plate 71 is close to water inlet 11 one side is formed with toper guide face 712.

When fire water flows from the fire-fighting pipeline to the water inlet 11, the abutting plate 71 is pushed to move to one side of the water outlet 12, the water inlet 11 is opened, the fire water enters the flow channel 14 and flows into the fire-fighting pipeline on the other side from the water outlet 12 again, when the abutting plate 71 moves, the conical block 6 is driven to move to one side of the water outlet 12 by the connecting rod, the liquid outlet 4 is opened, and foam liquid is discharged from the liquid outlet 4 into the flow channel 14 and mixed with the fire water. The foam liquid is buffered by the transition holes 5 on the transition plate 33, so that the foam liquid uniformly flows out of the liquid outlet 4, and the foam liquid and the fire water are fully mixed. When the fire-fighting water flow rate changes, the moving distance of the abutting plate 71 changes, the opening of the water inlet 11 changes, meanwhile, the moving distance of the conical block 6 changes, the opening of the liquid outlet 4 changes, the flow rate is also large, the larger the opening of the liquid outlet 4 is, the smaller the flow rate is, the smaller the opening of the liquid outlet 4 is, and further, the mixing proportion of foam liquid and fire-fighting water is guaranteed to be kept stable, and the fire-fighting effect is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A foam mixer, characterized by: the foam pump comprises a body (1), a water inlet (11) and a water outlet (12) are respectively formed at two ends of the body (1), a runner (14) for fire water circulation is formed in the body (1), a liquid injection pipe (3) communicated with a foam pump is arranged on the body (1), the length direction of the liquid injection pipe (3) is parallel to the runner (14), a liquid outlet (4) communicated with the runner (14) is formed at one end of the liquid injection pipe (3), a conical block (6) is arranged at the liquid outlet (4) in a sliding mode, a driving assembly (7) for driving the conical block (6) to slide is arranged in the body (1), and when the conical block (6) slides towards the water outlet (12), the liquid outlet (4) gradually becomes larger; the driving assembly (7) comprises an abutting plate (71), an elastic piece (72) and a connecting piece (73), wherein the elastic piece (72) is used for abutting the abutting plate (71) on the inner side of the water inlet (11), and the abutting plate (71) is connected with the conical block (6) through the connecting piece (73).

2. A foam mixer according to claim 1, wherein: annotate liquid pipe (3) by three-way pipe (31), shrouding (32) and end plate (34) are constituteed, the intercommunication has feed liquor pipe (2) on three-way pipe (31) branch pipe, feed liquor pipe (2) run through body (1), the other end and the foam pump intercommunication of feed liquor pipe (2), the length direction that three-way pipe (31) were responsible for is parallel with runner (14), shrouding (32) set up the one end of being responsible for in three-way pipe (31), end plate (34) set up the other end of being responsible for in three-way pipe (31), liquid outlet (4) form in one side opening part that three-way pipe (31) was kept away from in end plate (34).

3. A foam mixer according to claim 2, characterized in that: the three-way pipe (31) is connected with the end plate (34) through a transition plate (33), and transition holes (5) are formed in the transition plate (33) at intervals.

4. A foam mixer according to claim 2, characterized in that: the connecting piece (73) is arranged to be a connecting rod, one end of the connecting rod is connected with the abutting plate (71), and the other end of the abutting plate (71) penetrates through the sealing plate (32) to be connected with the conical block (6).

5. A foam mixer according to claim 4, wherein: the elastic piece (72) is arranged to be a compression spring, the compression spring is sleeved on the connecting rod, one end of the compression spring is abutted to the abutting plate (71), and the other end of the compression spring is abutted to the sealing plate (32).

6. A foam mixer according to claim 5, wherein: the sealing plate (32) is close to the direction of the abutting plate (71) and is provided with a first embedded groove (321), the abutting plate (71) is close to the direction of the sealing plate (32) and is provided with a second embedded groove (711), and two ends of the compression spring are respectively embedded in the first embedded groove (321) and the second embedded groove (711).

7. A foam mixer according to claim 1, wherein: the utility model discloses a water inlet, including body (1), water inlet (11), annular piece (8) are located, be formed with on annular piece (8) with butt face (81) of butt board (71) butt, butt face (81) are the flaring setting along the direction that is close to delivery port (12), one side that butt board (71) is close to water inlet (11) is formed with toper guide face (712).

8. A foam mixer according to claim 1, wherein: both ends of the body (1) are provided with flange plates (13).