CN212508341U

CN212508341U - Pressurizing spray head for fully mixing additives

Info

Publication number: CN212508341U
Application number: CN202021006065.4U
Authority: CN
Inventors: 吴挺鹏; 刘向东; 阳作亮; 成军; 黄兴; 苟仕川; 钟久安
Original assignee: Chengdu Hetuo Civil Engineering Co ltd
Current assignee: Chengdu Hetuo Civil Engineering Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-02-09
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a pressurization shower nozzle of intensive mixing additive sets up water inlet (3), additive entry (2) and air inlet (4) on the shower nozzle, can make the mortar mix with water and additive in the shower nozzle, forms annular space (6) through set up inner tube (5) in the shower nozzle, can make additive and water mix evenly in annular space (6) earlier, then gush out on the circumferencial direction from the mortar, then mix with the mortar. High-pressure gas is introduced into the gas inlet (4), so that the mortar can be pressurized, and the mortar, water and additives can be uniformly mixed. The utility model discloses mixing effect to mortar, water and additive is even, has guaranteed the quality of spraying the mortar to spraying effect has been guaranteed.

Description

Pressurizing spray head for fully mixing additives

Technical Field

The utility model relates to a pressurization shower nozzle of intensive mixing additive.

Background

The tunnel is an engineering building buried in the ground and is a form of utilizing the underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels and mine tunnels. Wherein the traffic tunnel can reduce traffic distance and relieve traffic pressure. However, the materials and the performances of the ground layers are different from one another, and after the tunnel is built, common diseases such as fracture of the tunnel wall surface, deterioration of a concrete structure, cracking, breakage, block falling, surface water seepage, water immersion and the like always occur due to the ground layer problems. The common diseases are usually repaired by means of manual repair and matched grouting or by means of mortar or concrete spraying. The sprayed mortar or concrete needs to be added with water or additives and then sprayed to the position needing to be repaired. However, the addition of water or additives directly into mortar or concrete is not easy to control, and the mortar or concrete gradually dries up due to the problem of water evaporation during the use process, so that the final spraying effect is inconsistent. And the water pipe and the additive pipe are directly connected on the spray head, so that the problem of uneven mixing of water, additives and mortar concrete is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a shower nozzle that can make water, additive and mortar concrete homogeneous mixing.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a pressurization shower nozzle of intensive mixing additive, be provided with one section inner tube in the shower nozzle, form the annular space between inner tube and the shower nozzle, annular space and the inside intercommunication of shower nozzle, be provided with water inlet and additive entry on the annular space, mix in the annular space with the additive water, then flow out from the annular space, inner tube one end is provided with the mortar mouth, and the mortar directly flows out from the inner tube, and consequently the water in the annular space is mixed the liquid and is directly mixed the contact and fuse with the mortar from the circumferencial direction in the additive mixed liquid, still be provided with the air inlet on the shower nozzle, fill gas in through the shower nozzle mutually, not only accelerate the jet velocity of mortar, can also make water, additive and mortar.

Specifically, the water inlet and the additive inlet are both arranged on the outer side surface of the annulus, and the axis of the connecting part of the water inlet and the additive inlet and the side wall of the annulus is perpendicular to the axis of the inner tube.

Specifically, the axis of the connecting part of the air inlet and the spray head is perpendicular to the axis of the inner pipe. The mortar forms a mortar column in the spray head, the air inlet is vertical to the mortar column in the spray head, namely, the introduced air can rotate the mortar column, so that the mixing effect of water, additives and the mortar is improved.

Specifically, the nozzle is of a tubular structure, the tubular structure is conical, the inner pipe is arranged at one end of the conical tubular structure with a large diameter, and the air inlet is formed in the middle of the tubular structure. The inner space of the conical spray head is also conical, namely the inlet is large and the outlet is small, and the small outlet can increase the pressure of mortar, so that the spraying distance is increased.

Specifically, the mortar port is arranged on the end face of the inner pipe connected with the spray head, and the axis of the mortar port coincides with the axis of the inner pipe.

Specifically, the inner wall of the spray head is provided with a spiral groove. The direction of rotation of heliciform groove is the same with the direction of air inlet, water inlet and additive entry, and the heliciform groove can increase the rotatory effect of water and mortar.

The utility model has the advantages of it is following:

1. water and the additive flow out of the annular space, and are contacted with and mixed with the mortar in the circumferential direction, so that the mixing effect is uniform, and the spraying effect is ensured;

2. the water inlet and the air inlet are perpendicular to the side wall of the spray head, namely perpendicular to the mortar column, entering water rotates along the annular space, can be uniformly mixed with the additive, and the air inlet and the water inlet are matched with the spiral groove in the spray head, so that the mortar column can rotate, and the rotating mortar column is uniformly mixed with the water and the additive.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

in the figure: 1-mortar port, 2-additive inlet, 3-water inlet, 4-air inlet, 5-inner tube and 6-annulus.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 and 2, a pressurized spray head for thoroughly mixing additives. The nozzle is provided with four connectors which are divided into a mortar port 1, a water inlet 3, an additive inlet 2 and an air inlet. The mortar inlet 1 is used for inputting mortar into the spray head, the water inlet 3 is used for inputting water into the spray head, the additive inlet 2 is used for inputting additives into the spray head, and the air inlet is used for inflating the spray head, so that pressure is provided for the mortar, the pressurized mortar can be sprayed out of the spray head in a high-pressure state, and the mortar spraying distance is longer.

Preferably, in order to make the pressure of the mortar higher, the spray head is of a conical structure, i.e. a structure with a large inlet and a small outlet. With the gradual decrease of the space, the follow-up mortar is flushed continuously, so that the pressure of the mortar naturally becomes higher, the speed becomes higher, and the spraying distance is further.

As shown in fig. 3, the water, additives and mortar are mixed in the spray head. In order to mix the water, additives and mortar evenly. Therefore, an inner pipe 5 is arranged in the nozzle, the length of the inner pipe 5 is less than half of that of the nozzle, one end of the inner pipe 5 is connected with one end with a large diameter of the nozzle and is coaxial with the nozzle, an annulus 6 is formed between the inner pipe 5 and the nozzle, the annulus 6 is communicated with the middle of the nozzle, a water inlet 3 and an additive inlet 2 are both arranged on the outer side wall of the annulus 6, a mortar inlet is communicated with one end of the inner pipe 5, the mortar inlet is coaxial with the inner pipe 5, and the diameter of the mortar inlet is not more than that of the inner pipe 5, so that mortar only can flow into the nozzle from the inner pipe 5, and when mortar flows into the nozzle from the inner pipe 5, a mixed liquid of water and an additive is mixed with the mortar from.

In order to facilitate the uniform and sufficient mixing of water and additives, the water inlet 3 and the additive inlet 2 are both vertical to the axis of the inner pipe 5, so that the water and the additives can flow along the circumferential direction of the annulus 6 after entering the annulus 6, then the water and the additives are fully mixed, and the mixed liquid is poured into the circumferential direction of the mortar column to be mixed with the mortar column when the water is continuously input into the annulus 6.

The air inlet 4 is formed in the side wall of the spray head at the tail end of the annular space 6, and the air inlet 4 is perpendicular to the axis of the inner pipe 5, so that under the action of wind power, mortar, water and additives can rotate in the spray head and are sprayed out of the spray head at an accelerated speed, and in the rotating process of the mortar, the mixed liquid of the mortar and the water and the additives is naturally further mixed, so that the mixing effect is good.

The spiral groove is formed in the inner wall of the spray head, so that the mortar can rotate in the flowing process, and the mixing effect is further improved.

And through set up choke valve or stop valve respectively on four shower nozzles, can change the addition of water, additive at any time to and through the size that changes fan power, can make shower nozzle spun mortar accord with the construction needs.

Claims

1. A pressurizing nozzle for fully mixing additives is characterized in that: be provided with one section inner tube (5) in the shower nozzle, form annular space (6) between inner tube (5) and the shower nozzle, annular space (6) and the inside intercommunication of shower nozzle, be provided with water inlet (3) and additive entry (2) on annular space (6), inner tube (5) one end is provided with mortar mouth (1), still be provided with the air inlet on the shower nozzle.

2. The pressurized spray head for intimately mixing additives of claim 1, wherein: the water inlet (3) and the additive inlet (2) are both arranged on the outer side surface of the annular space (6), and the axis of the connecting part of the water inlet (3) and the additive inlet (2) and the side wall of the annular space (6) is vertical to the axis of the inner pipe (5).

3. The pressurized spray head for intimately mixing additives of claim 2, wherein: the axis of the connecting part of the air inlet and the spray head is vertical to the axis of the inner pipe (5).

4. A pressurized spray head for intimately mixing additives according to claim 3, wherein: the spray head is of a tubular structure, the tubular structure is conical, the inner pipe (5) is arranged at one end of the conical tubular structure with the large diameter, and the air inlet is formed in the middle of the tubular structure.

5. The pressurized spray head for intimately mixing additives of claim 1, wherein: the mortar port (1) is arranged on the end face of the inner pipe (5) connected with the spray head, and the axis of the mortar port (1) coincides with the axis of the inner pipe (5).

6. The pressurized spray head for intimately mixing additives of claim 4, wherein: the inner wall of the spray head is provided with a spiral groove.