WO2013026280A1

WO2013026280A1 - Water hose pressurizing device and method, and fire fighting equipment

Info

Publication number: WO2013026280A1
Application number: PCT/CN2012/074300
Authority: WO
Inventors: 周翔; 喻志平; 莫晓齐
Original assignee: 湖南三一智能控制设备有限公司; 三一重工股份有限公司
Priority date: 2011-08-23
Filing date: 2012-05-28
Publication date: 2013-02-28
Also published as: CN102430220B; CN102430220A

Abstract

A water hose pressurizing device and method, and a fire fighting equipment. The water hose pressurizing device comprises a water flow conveying hose formed of multiple water hoses (1) in communication with each other. An axial flow electric pump (2) is disposed at a node between two adjacent water hoses (1). An axial center of blades of the axial flow electric pump (2) are parallel to a water flow direction in the water hose (1), and the axial flow electric pump (2) is used for pressurizing, along the water flow direction, water flowing through the node. The water hose pressurizing device pressurizes water in a relay manner after water passes through the nodes in order, thereby solving the problem that it is difficult to convey water to a high-building for fire fighting. The present invention has the advantages that the fire-fighting efficiency is high, the operation is flexible, and the structure is compact.

Description

Water belt supercharger, method and fire fighting equipment

This application claims priority to Chinese Patent Application No. 201110242840.5, entitled "Hydraulic Device, Method and Fire Fighting Equipment for Water Belts", filed on August 23, 2011, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of fire protection, and more particularly to a pressurized device, method and fire fighting device for a water hose.

Background technique

As the height of buildings continues to increase, the scope of operation of fire-fighting equipment is increasing, and the length of fire-fighting hoses is correspondingly increasing. For ultra-long fire hoses, the efficiency of fire fighting is often affected by insufficient water pressure. Therefore, those skilled in the art usually provide a supercharging device on the fire fighting equipment to increase the water supply pressure of the water hose.

In some existing pipeline pumps, it can play a role in increasing the water supply pressure of the water belt. Its power system is generally driven by an electric motor or a gasoline engine. The pressurizing device has a large weight and is cumbersome to install. Moreover, in the process of water flow transportation, due to the frictional resistance between the water flow and the water belt wall, the water pressure difference at the two ends of the water belt is very large, and the spray force at the water gun mouth is small, the spray distance of the water flow is close, the water column hits and the water spray The sputtering area is small.

In addition, there is also a scheme of providing a supercharging device at the water gun mouth. The booster consists of a water pump and a pneumatic motor. Since the water gun is placed on top of the fire hose, the booster requires a longer air line. Longer air lines not only result in loss of airflow, but also have a large volume and weight. The pressurizing device is disposed at the water gun mouth, so that the water gun mouth structure is cumbersome and inconvenient to operate.

Summary of the invention

In order to overcome the above-mentioned drawbacks and deficiencies of the prior art, an object of the present invention is to provide a water belt pressurizing device which is light in weight, simple in structure, flexible in operation, and capable of effectively relaying a water belt. Supercharged.

The water belt pressurizing device of the present invention comprises a water flow conveyor belt formed by a plurality of water pipes communicating with each other, and an axial flow electric pump is disposed at a node between the water pipes of the adjacent two sections, the blades of the axial flow electric pump The axis of the shaft is parallel to the direction of water flow in the water belt, and the axial flow pump is used to pressurize water flowing through the node in the direction of water flow. As a preferred aspect of the above technical solution, the power line of the axial flow pump is disposed in the wall of the water belt. Preferably, in the above technical solution, the end of the power cord is provided with a waterproof joint, and the waterproof joint is connected to an axial flow electric pump adjacent thereto.

Preferably, as the above technical solution, when the axial flow pump is stopped, water flows freely through the axial flow electric pump.

Preferably, in the above technical solution, each of the water belts and the axial flow electric pump are detachably sealed.

Preferably, in the above technical solution, each of the water belts and the axial flow electric pump are connected in series. Preferably, in the above technical solution, when the plurality of axial flow electric pumps are plural, each of the axial flow electric pumps operates in the same direction and is pressurized in the same direction.

The present invention also provides a water belt pressurization method for pressurizing a water flow through a water flow conveyor belt, the water flow conveyor belt comprising a plurality of water pipes connected to each other, and a node formed between two adjacent water belts. The water belt pressurization method includes:

Pumping the water stream to the water stream conveyor;

Pressurizing water flowing through the node in the direction of water flow;

The water stream is delivered to the outlet.

Another object of the present invention is to provide a fire fighting apparatus using the above-described water belt pressurizing device or water belt pressurizing method.

As a preferred aspect of the above technical solution, the fire fighting device is specifically a fire truck.

The water belt pressurizing device, the method and the fire fighting device of the invention provide a supercharging node between the water pipes of adjacent sections, and the water flow is sequentially pressurized by the relay after passing through the node, thereby solving the problem of high-rise firefighting water supply. Compared with the prior art, the present invention efficiently supercharges the water flow by the axial flow electric pump, so that the jet force at the water gun mouth is large, the jet distance of the water flow is long, and the striking force of the water column and the sputtering area of the water splash are large. Therefore, the fire extinguishing efficiency is greatly improved; Moreover, the present invention does not need to provide a water pump and a pneumatic motor at the water gun mouth, and does not need to modify the water gun mouth of the existing structure, and the operation is flexible, and the original fire fighting operation does not need to be changed. In addition, the booster electric pump of the present invention is installed with a water hose, and has a compact structure and a small volume, and does not significantly increase the space of the fire-fighting equipment, and is particularly suitable for a fire-fighting vehicle equipped with an ultra-long water belt to carry on a high-rise building. Fire fighting operations.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will The drawings used in the embodiments or the description of the prior art are described in a single manner. It is obvious that the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art do not pay Other drawings can also be obtained from these drawings on the premise of creative labor.

1 is a partial structural view of a water hose pressurizing device according to an embodiment of the present invention;

Figure 2 is a cross-sectional view showing an axial flow electric pump according to an embodiment of the present invention.

3 is a flow chart of a water hose pressurization method in accordance with an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The present invention provides a water belt pressurizing apparatus and method which can be used in water belts of various structures, and the present invention is not limited thereto. Preferably, the water belt pressurizing apparatus and method of the present invention are applied to a water belt of a fire-fighting apparatus to facilitate fire-fighting operations on fire-fighting materials, particularly high-rise buildings. Although the high-rise buildings in the world currently have fire-fighting devices and automatic fire-extinguishing systems, in the case of special circumstances, such as the failure of the power supply system in the building, the water pump in the building cannot be activated. Can rely on the intervention and participation of external fire fighting equipment. However, due to the pressure resistance of the soft water belt itself and the pressure loss during the transportation process, high-rise fire water supply has always been an urgent problem to be solved by those skilled in the art.

In view of this, the present invention proposes a stable and reliable water belt pressurization solution. Fig. 1 is a partial structural view showing a water hose pressurizing apparatus according to an embodiment of the present invention. The present invention divides the entire water strip in the prior art into a plurality of sections, and may be two or more sections, and the present invention is not limited thereto. The water pipes of each section are connected to each other and form a water flow conveyor belt as a whole. Figure 1 shows a block diagram of the node portion between two adjacent water zones. As shown in Fig. 1, the present invention is provided with an axial flow electric pump 2 at a node between each adjacent two-stage water belt 1, and the axial flow electric pump 2 is for pressurizing water flowing through the node in the direction of water flow. Fig. 2 is a cross-sectional view showing an axial flow electric pump 2 according to an embodiment of the present invention. As can be seen from the figure, the axial center of the vane 23 of the axial flow electric pump 2 is parallel to the direction of the water flow in the water belt 1, preferably The axis of the blade 23 coincides with the axis of the pipe of the water belt 1. The axial flow pump 2 is set to ensure the direction of the water flow in the water belt 1 will not change. It should be understood that the above parallel refers to parallel including conventional manufacturing tolerances in the art. The axial flow electric pump 2 includes a motor 24 and a vane 23 whose output shaft is located at the axis of the vane 23 for driving the rotation of the vane 23. The blades 23 are regularly arranged according to the direction of the water flow, and the direction in which the water flows through the blades 23 does not change, but the moment of rotation by the blades 23 can cause an increase in the pressure of the water flow. During operation, both the motor 24 and the blades 23 are located in the flow of water, thus requiring the motor 24 of the present invention to have corresponding water resistance.

In order to drive the motor 24, the present invention requires the power supply to the motor 24. In view of the particularity of the working environment of the water pressurizing device of the present invention, it must be kept strictly isolated from water to prevent possible short circuit. As an embodiment, it is preferred that the power line 21 of the axial flow pump 2 is disposed within the water wall. By embedding the power cord 21 in the wall of the water belt, the influence of the working environment can be avoided (such as the influence of the road area water on the power line 21 when working on a water surface.) The power can be uniformly supplied between the axial flow pumps 2 It is also possible to supply power independently, and the present invention is not limited thereto. Accordingly, the manner in which the power cord 21 is disposed is also different, and those skilled in the art can appropriately arrange the power cords 21 in the wall of the water belt with the shortest length by conventional design.

Further, at the node position between the adjacent two water strips, the power supply line 21 can be taken out from the wall of the water belt and connected to the axial flow electric pump 2 provided at the node. At this time, a waterproof joint 22 may be provided at the end of the power cord 21, and the waterproof joint 22 is connected to the axial flow electric pump 2 adjacent thereto. The present invention can provide an electrical box on the axial flow electric pump 2, and is connected to the waterproof joint 22 through the power supply interface on the electrical box. The waterproof connector 22 can be equipped with a high-grade, high-insulation power connector to ensure no short-circuit even in the presence of a water film. It should be understood that various other wiring means can be employed between the power supply line 21 and the axial flow electric pump 2, and the technical effects of the present invention can be achieved, and the present invention is not limited thereto.

The axial flow electric pump 2 of the present invention can use a high-grade waterproof, high-efficiency, small-volume axial flow electric pump 2 which can be sized and sealed with the water belt 1. When the axial connection between the axial flow pump 2 and the sections of the water belt 1 is made, the sealed connection may be a detachable sealed connection. The above-described sealed connection can be realized by a structure such as a connecting flange or a sealing dam, and the present invention is not limited thereto.

The present invention can provide one or more axial flow electric pumps 2 on the entire water flow conveyor belt, and each of the water belts 1 and the axial flow electric pump 2 are connected in series to improve the supercharging effect. Further, when there are a plurality of axial flow electric pumps 2, the respective axial flow electric pumps 2 operate in synchronization and are pressurized in the same direction. In order to ensure the normality of the water belt 1 When the one or several axial flow electric pumps 2 fail, such as power failure or short circuit, causing the shutdown, the water flow freely passes through the axial flow electric pump 2, and does not cause the water flow to be cut off. On the basis of this technical solution, since the blades 23 of the other axial flow electric pump 2 that have not failed are still normally rotated, the advancement of the water flow can be continued by the torque thereof, thereby achieving the supercharging. Compared with the prior art, it is not necessary to suspend the fire fighting operation due to the repair failure, and the operation performance is remarkably improved.

The hydrodynamic principle of the present invention is: The frictional resistance of the water flow and the water wall is proportional to the square of the water flow velocity. If the initial pressure of the water flow is too large, the initial velocity of the water flow is too large, and the energy is lost more than half in the initial stage. By using the staged pressurization, the flow rate can be reduced and the conveying distance is lengthened, so that the water can be sent to a long distance at a certain pressure.

Therefore, the water hose boosting device of the above embodiment of the present invention can perform the relay pressurization of the water flow, and can effectively increase the spray force at the water gun mouth, the spray distance, the striking force of the water column, and the sputtering area of the water splash, thereby greatly improving the fire extinguishing. effectiveness.

In addition, the present invention also provides a water pipe pressurization method, the flow chart of which is shown in FIG. 3. As can be seen from the figure, the water pipe pressurization method of the present invention is used for increasing the water flow through the water flow conveyor. Pressing, the water flow conveyor belt comprises a plurality of water pipes communicating with each other, and a node is formed between two adjacent water belts, wherein the water belt pressurization method comprises:

Step 1: Pump the water flow to the water flow conveyor;

Step 2: pressurize the water flowing through the node in the direction of the water flow;

Step 3: Transfer the water stream to the outlet.

The above method can perform relay pressurization when the water flows through the node, and the fire extinguishing efficiency can be obviously improved. The supercharging process and principle of the water belt pressurization method have been described above, and will not be described herein.

In addition to the aforementioned water belt pressurizing device and method, the present invention also provides a fire fighting apparatus including the aforementioned water belt pressurizing device or water hose pressurizing method. Other structures of the fire fighting equipment refer to the prior art, and are not described herein again. The fire-fighting equipment may include a fire-fighting device or an automatic fire-extinguishing system in a high-rise building, and the fire-fighting equipment is preferably a fire-fighting vehicle to facilitate fire-fighting operations on high-rise buildings by external operations.

In summary, the water belt pressurizing device, method and fire-fighting equipment of the present invention solves the high-rise fire protection by providing a supercharging node between the water belts of adjacent sections, and the water flow is sequentially supercharged by the relay after the node passes through the joint. The problem of sending water is difficult. Compared with the prior art, the present invention has the following advantages: 1) High fire extinguishing efficiency

The invention effectively boosts the water flow by the axial flow electric pump, so the injection force at the water gun mouth is large, the jet distance of the water flow is far, the striking force of the water column and the sputtering area of the water splash are large, thereby greatly improving the fire extinguishing effectiveness.

2) Flexible operation

The invention does not need to provide a water pump and a pneumatic motor at the water gun mouth, and does not need to modify the water gun mouth of the existing structure, and the operation is flexible, and the original fire operation procedure does not need to be changed.

3) Compact structure

The booster electric pump of the present invention is installed with a water hose, and has a compact structure and a small volume, and does not significantly increase the space of the fire-fighting equipment, and is particularly suitable for a fire-fighting operation of a fire-fighting vehicle equipped with an ultra-long water belt to a high-rise building.

Therefore, the advantageous effects of the present invention are obvious.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.

Claims

Rights request

A pressurizing device for a water hose, characterized in that the pressurizing device comprises a water flow conveyor belt formed by a plurality of water pipes (1) communicating with each other, in each adjacent two water strips (1) The internodes are provided with an axial flow electric pump (2) whose axial axis is parallel to the direction of the water flow in the water belt (1), and the axial flow electric pump (2) is used for The water flowing through the nodes is pressurized in the direction of the water flow.

2. The supercharging device according to claim 1, characterized in that the power supply line (21) of the axial flow electric pump (2) is arranged in the wall of the water belt.

3. The supercharging device according to claim 2, wherein the end of the power cord (21) is provided with a waterproof joint (22), and the waterproof joint (22) and the axial current adjacent thereto Pump (2) is connected.

4. A supercharging device according to claim 1 wherein the flow of water freely passes through the axial flow pump (2) when the axial flow pump (2) is shut down.

The supercharging device according to any one of claims 1 to 4, characterized in that the water strip (1) and the axial flow electric pump (2) are detachably sealed.

6. The supercharging device according to any one of claims 1 to 4, characterized in that the water hoses (1) and the axial electric pumps (2) are connected in series.

The supercharging device according to any one of claims 1 to 4, characterized in that, when the axial flow electric pump (2) is plural, each axial electric pump (2) operates synchronously, and Pressurized.

8. A method of pressurizing a water belt for pressurizing a water flow through a water flow conveyor belt, the water flow conveyor belt comprising a plurality of water pipes connected to each other, and a node formed between two adjacent water belts, the characteristics of which are In that, the water belt pressurization method includes:

Pumping the water stream to the water stream conveyor;

Pressurizing water flowing through the node in the direction of water flow;

The water stream is delivered to the outlet.

A fire fighting apparatus using the water hose pressurizing apparatus according to any one of claims 1 to 7 or the water hose pressurizing method according to claim 8.

The fire fighting apparatus according to claim 9, wherein the fire fighting apparatus is a fire truck.