Short-distance mixed joint for fire fighting

Abstract

The short-distance mixing connector comprises a main water supply pipe and a fire extinguishing agent pipe, the fire extinguishing agent pipe penetrates through the main water supply pipe, an included angle is formed between the main water supply pipe and the fire extinguishing agent pipe, and a fire extinguishing agent output hole is formed in the fire extinguishing agent pipe in the main water supply pipe. When main supplied water flows through the fire extinguishing agent pipe, the fire extinguishing agent is output from the fire extinguishing agent output holes of the fire extinguishing agent pipe according to the Venturi principle and is mixed with the main supplied water, the effect of rapid and uniform mixing can be achieved, and compared with a traditional mixing device, more uniform mixing can be achieved in the shortest pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to a short-distance mixing joint for fire fighting. Background Art

[0002] When using water-based fire extinguishing agents in the firefighting industry, the agent must be mixed with water before being delivered to the fire scene for extinguishing. This is typically done using devices such as pressure-type and balanced-type mixing devices. The extinguishing agent is piped directly into the main water supply, where it is gradually mixed evenly as it travels through the pipe.

[0003] Currently, in the field of fire protection technology, mixing joints for proportional mixing devices typically utilize a traditional three-way connection, connecting the fire extinguishing agent pipeline directly to the main water supply pipeline. These joints feature a single outlet for the fire extinguishing agent to mix with the main water supply, as exemplified by "A Pressure Differential Balanced Proportional Mixing Device," published in Publication No. CN 101554514A. While this type of joint can achieve mixing of the fire extinguishing agent and the main water supply, the initial homogeneity of the mixture is low, requiring it to flow through a certain length of pipeline to achieve the desired degree of mixing. Utility Model Content

[0004] The purpose of the utility model is to provide a short-distance mixing joint for fire fighting, so as to solve the technical problem of low uniformity of the mixed liquid in the initial stage of formation in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a short-distance mixing joint for fire fighting, comprising a main water supply pipe and a fire extinguishing agent pipe, wherein the fire extinguishing agent pipe passes through the main water supply pipe, an angle is formed between the main water supply pipe and the fire extinguishing agent pipe, and a fire extinguishing agent output hole is provided on the fire extinguishing agent pipe in the main water supply pipe.

[0007] Furthermore, the angle is an acute angle or an obtuse angle.

[0008] Furthermore, the fire extinguishing agent pipe is provided with a fire extinguishing agent inlet end and an impurity discharge end, the impurity discharge end is provided with a drain valve, and the drain valve is connected to the fire extinguishing agent pipe by means of threads, flanges or welding.

[0009] Furthermore, the diameter of the fire extinguishing agent pipe is smaller than the diameter of the main water supply pipe.

[0010] Furthermore, the main water supply pipe and the fire extinguishing agent pipe are sealed by welding.

[0011] Furthermore, the number of the fire extinguishing agent output holes is no less than 2.

[0012] Furthermore, when the angle between the main water supply pipe and the fire extinguishing agent pipe is reduced and the number of the fire extinguishing agent output holes is increased, the mixing ratio of the fire extinguishing agent can be improved without increasing the internal resistance of the main water supply pipe.

[0013] Based on the above technical solution, the embodiments of the present utility model can produce at least the following technical effects:

[0014] (1) The short-distance mixing joint for fire fighting provided by the utility model can achieve a rapid and uniform mixing effect when the main water supply flows through the fire extinguishing agent pipe. The fire extinguishing agent is output from the multiple fire extinguishing agent output holes of the fire extinguishing agent pipe due to the Venturi principle and is mixed with the main water supply. Compared with traditional mixing devices, it can achieve more uniform mixing in the shortest pipe.

[0015] (2) The utility model provides a short-distance mixing joint for fire fighting. The fire extinguishing agent pipe is arranged obliquely in the main water supply pipe. The resistance loss generated when the main water supply flows through is small, which reduces the operating pressure loss of the entire fire extinguishing system.

[0016] (3) The short-distance mixing joint for fire fighting provided by the utility model is processed by welding the main water supply pipe and the fire extinguishing agent pipe, which has the characteristics of simple processing. When the drain valve is opened, the fire extinguishing agent can flush the internal impurities through the fire extinguishing agent pipe. The entire fire extinguishing agent pipe has no obstruction and can play a role in draining. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 It is a cross-sectional view of an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0020] In the figure: 1. Fire extinguishing agent pipe; 2. Main water supply pipe; 3. Fire extinguishing agent output hole; 4. Drain valve. DETAILED DESCRIPTION

[0021] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work fall within the scope of protection of the present invention.

[0022] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting this application; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Example 1

[0024] The utility model provides a short-distance mixing joint for fire fighting, comprising a main water supply pipe 2 and a fire extinguishing agent pipe 1, wherein the fire extinguishing agent pipe 1 passes through the main water supply pipe 2, an angle is formed between the main water supply pipe 2 and the fire extinguishing agent pipe 1, and a fire extinguishing agent output hole 3 is provided on the fire extinguishing agent pipe 1 in the main water supply pipe 2.

[0025] In this embodiment, the fire extinguishing agent pipe 1 is provided with a fire extinguishing agent inlet end and an impurity discharge end. The impurity discharge end is provided with a drain valve 4 , and the drain valve 4 is connected to the fire extinguishing agent pipe 1 through threads.

[0026] In this embodiment, the diameter of the fire extinguishing agent pipe 1 is smaller than the diameter of the main water supply pipe 2 .

[0027] In this embodiment, the main water supply pipe 2 and the fire extinguishing agent pipe 1 are sealed by welding.

[0028] In this embodiment, the number of the fire extinguishing agent output holes 3 is no less than 2.

[0029] In this embodiment, when the angle between the main water supply pipe 2 and the fire extinguishing agent pipe 1 is reduced and the number of the fire extinguishing agent output holes 3 is increased, the mixing ratio of the fire extinguishing agent can be improved without increasing the internal resistance of the main water supply pipe 2.

[0030] When the main water supply flows through the inclined fire extinguishing agent pipe 1 in the main water supply pipe 2, the fire extinguishing agent flows out of the multiple fire extinguishing agent outlets 3 in the fire extinguishing agent pipe 1 due to the Venturi principle, mixing with the main water supply in multiple streams. When the fire extinguishing agent pipe 1 needs to be drained, the drain valve 4 is opened, and the waste flows out through the outlet of the drain valve 4.

[0031] Example 2

[0032] The utility model provides a short-distance mixing joint for fire fighting, comprising a main water supply pipe 2 and a fire extinguishing agent pipe 1, wherein the fire extinguishing agent pipe 1 passes through the main water supply pipe 2, an angle is formed between the main water supply pipe 2 and the fire extinguishing agent pipe 1, and a fire extinguishing agent output hole 3 is provided on the fire extinguishing agent pipe 1 in the main water supply pipe 2.

[0033] In this embodiment, the fire extinguishing agent pipe 1 is provided with a fire extinguishing agent inlet end and an impurity discharge end. The impurity discharge end is provided with a drain valve 4, and the drain valve 4 is connected to the fire extinguishing agent pipe 1 by welding.

[0034] In this embodiment, the diameter of the fire extinguishing agent pipe 1 is smaller than the diameter of the main water supply pipe 2 .

[0035] In this embodiment, the main water supply pipe 2 and the fire extinguishing agent pipe 1 are sealed by welding.

[0036] In this embodiment, the number of the fire extinguishing agent output holes 3 is 5.

[0037] In this embodiment, when the angle between the main water supply pipe 2 and the fire extinguishing agent pipe 1 is reduced and the number of the fire extinguishing agent output holes 3 is increased, the mixing ratio of the fire extinguishing agent can be improved without increasing the internal resistance of the main water supply pipe 2.

[0038] When the main water supply flows through the inclined fire extinguishing agent pipe 1 in the main water supply pipe 2, the fire extinguishing agent flows out of the multiple fire extinguishing agent outlets 3 in the fire extinguishing agent pipe 1 due to the Venturi principle, mixing with the main water supply in multiple streams. When the fire extinguishing agent pipe 1 needs to be drained, the drain valve 4 is opened, and the waste flows out through the outlet of the drain valve 4.

[0039] The structures, functions, and connection forms disclosed herein may be implemented in other ways. For example, the embodiments described above are merely illustrative, and multiple components may be combined or integrated into another component. In addition, the functional components in the various embodiments herein may be integrated into a single functional component, or each functional component may exist physically separately, or two or more functional components may be integrated into a single functional component.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A short distance mixing joint for fire fighting, characterized in that: The invention comprises a main water supply pipe (2) and a fire extinguishing agent pipe (1), wherein the fire extinguishing agent pipe (1) passes through the main water supply pipe (2), an angle exists between the main water supply pipe (2) and the fire extinguishing agent pipe (1), and a fire extinguishing agent output hole (3) is provided on the fire extinguishing agent pipe (1) in the main water supply pipe (2).

2. The short-distance mixing joint for firefighting according to claim 1, characterized in that: The fire extinguishing agent pipe (1) is provided with a fire extinguishing agent inlet end and an impurity discharge end. The impurity discharge end is provided with a drain valve (4). The drain valve (4) is connected to the fire extinguishing agent pipe (1) by means of threads, flanges or welding.

3. The short distance mixing joint for fire fighting according to claim 1, characterized in that: The diameter of the fire extinguishing agent pipe (1) is smaller than the diameter of the main water supply pipe (2).

4. The short-distance mixing joint for firefighting according to claim 1, characterized in that: The main water supply pipe (2) and the fire extinguishing agent pipe (1) are sealed by welding.

5. The short distance mixing joint for fire fighting according to claim 1, characterized in that: The number of the fire extinguishing agent output holes (3) is no less than 2.

6. The short distance mixing joint for fire fighting according to claim 1, characterized in that: When the angle between the main water supply pipe (2) and the fire extinguishing agent pipe (1) is reduced and the number of the fire extinguishing agent output holes (3) is increased, the mixing ratio of the fire extinguishing agent can be increased without increasing the internal resistance of the main water supply pipe (2).

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