CN204522093U - A kind of long-range leakage alarm - Google Patents

Abstract

The utility model provides a remote leakage alarm, which comprises a body, a float switch, a sealing ball, an end cover, a spring and a liquid flow hole. The end cover is connected to the upper port of the body through threads, and the float switch is threadedly connected to the end cover. , one end of the spring is connected to the float switch, the float switch, the spring and the sealing ball are sequentially arranged in the body, the float switch is close to the upper port of the body, the sealing ball is close to the lower port of the body, and the lower port of the body is provided with stop pin. Aiming at the hidden dangers of leakage in fire extinguishers in the prior art, according to the development idea of functional integration and the development principle of simple structure and low cost, the main structure design is exquisite, simple and easy to process. Through a large number of tests and demonstrations, the remote leakage When the alarm is applied in engineering, it can accurately alarm, have reliable performance, and will not cause malfunction due to improper operation. The overall structure is reasonable and compact, and the cost performance is high. It not only broadens the scope of application, but also promotes technological progress and innovation in the field of fire protection.

Description

A remote leak alarm

technical field

The utility model relates to the technical field of fire protection, in particular to a remote leakage alarm.

Background technique

In the fire protection engineering system, due to factors such as aging of parts and repeated actions of valve sealing surfaces, liquid leakage occurs in the fire protection system. This leakage usually occurs inside the device, which is a hidden leakage and cannot be directly observed through external observation. It is known that with the continuous accumulation of internal leakage of the device, the liquid will eventually flow to the terminal through the pipe network, causing flooding loss or environmental pollution to the protected area, or loss of fire extinguishing agent leading to failure of the fire extinguishing system, causing great harm to the protected area, If it cannot be found and dealt with in time, it will cause heavy property loss. In some of the current existing technologies, sprinkler fire extinguishing equipment and foam fire extinguishing equipment commonly used in the field of fire engineering, such as deluge alarm valves and pressure proportional mixing devices, only meet some basic requirements during the design and application process. However, the automatic inquiry and alarm functions when the liquid of this type of equipment leaks are not disclosed in the current known technologies in the art.

Utility model content

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the utility model is to provide a remote leakage alarm, which is a device with the functions of outputting an alarm signal for liquid leakage, preventing low pressure from passing through high pressure, and collecting leakage. It is suitable for the use environment where the pressure of the system under test is much higher than that of the leak test in the servo state, and an alarm signal needs to be automatically issued when the system under test leaks.

In order to achieve the above purpose, the utility model provides a remote leakage alarm, including: a body, a float switch, a sealing ball, an end cover, a spring and a liquid flow hole, and the end cover is connected to the upper part of the body through threads port, the float switch is screwed to the end cover, one end of the spring is connected to the float switch, and the float switch, the spring and the sealing ball are sequentially arranged in the body , the float switch is close to the upper port of the body, the sealing ball is close to the lower port of the body, and the lower port of the body is provided with a stop pin.

Further, a leakage collection port is provided on the side of the body close to the upper port.

Further, the remote leakage alarm also includes a short drainage pipe, and the short drainage pipe is assembled on the body through the leakage collection port.

Further, the remote leakage alarm also includes a magnetic switch, the magnetic switch is arranged in the upper port of the body, and the magnetic switch communicates with an external alarm device through a switch wire.

Further, the liquid flow hole is arranged at the lower port.

Further, an overflow channel is provided between the sealing ball and the body.

Further, the stopper pin is assembled on the body through the limit pin hole.

Further, the lower end of the float switch is provided with a stepped surface, and the spring is arranged on the stepped surface.

Further, the inner diameter of the stepped surface is smaller than the inner diameter of the spring.

The utility model aims at the hidden danger of leakage in the fire extinguisher in the prior art, according to the research and development idea of function integration, and the development principle of simple structure and low cost, the main structure is exquisitely designed, simple and easy to process, and at the same time several common The remote leak alarm can be assembled with these components, and the remote leak alarm can be installed on the device under test, so that the remote leak alarm has the function of automatically outputting an alarm signal when it leaks, and avoids property losses caused by not detecting liquid leakage in time . Through a large number of tests and demonstrations, the remote leakage alarm of the utility model can accurately alarm in engineering applications, has reliable performance, and will not cause malfunction due to improper operation. The overall structure is reasonable and compact, and the cost performance is high, which not only broadens the scope of application , and promote technological progress and innovation in the field of fire protection.

The technology of the utility model can also be applied to liquid leakage remote alarm systems in other non-fire-fighting fields.

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of the remote leakage alarm of the present invention;

Fig. 2 is a schematic cross-sectional view of the remote leakage alarm of the present invention.

In the accompanying drawings, 1 is the stop pin, 2 is the sealing ball, 3 is the spring, 4 is the body, 5 is the float switch, 6 is the overflow channel, 7 is the end cover, 8 is the upper port, 9 is the lower port, 10 is the short drainage pipe, a is the liquid flow hole, b is the connecting thread, c is the step surface, d is the limit pin hole, e is the connecting thread, f is the leakage collection port, and h is the switch wire.

Detailed ways

As shown in Fig. 1 and Fig. 2, it is a schematic diagram of the assembly structure and a schematic cross-sectional view of the remote leakage alarm of the present invention. As shown in the figure, the utility model provides a remote leakage alarm, which includes a body 4, a float switch 5, a sealing ball 2, an end cover 7, a spring 3 and a liquid flow hole a, and the body 4 includes The upper port 8 and the lower port 9 are two parts. The end cap 7 is connected to the upper port 8 of the body 4 through the connecting thread e. The end cap 7 can be fixed on the upper port 8 of the body 4 or can be installed in a detachable At the upper port 8, the float switch 5 is installed inside the body 4, and the float switch 5 is screwed to the end cover 7. The liquid flow hole a is set at the lower port 9, the upper end of the spring 3 is connected with the lower end of the float switch 5, the lower end of the spring 3 is connected with the sealing ball 2 below, that is, one end of the spring 3 is connected with the float switch 5, The float switch 5 , the spring 3 and the sealing ball 2 are arranged in the body 4 sequentially from top to bottom, the float switch 5 is close to the upper port 8 of the body 4 , and the sealing ball 2 is close to the lower port 9 of the body 4 . The lower port 9 of the body is provided with a stop pin 1, and the spring 3 and the sealing ball 2 are loaded into the lower port 9 of the body 4 in sequence, and the stop pin 1 is inserted into the limit pin hole d, and the stop pin 1 passes through the limit pin The hole d is assembled on the body 4, which can prevent the sealing ball 2 from falling off. .

The side of the body 4 is provided with a leakage collection port f near the upper port 8. The remote leakage alarm also includes a short drain pipe 10, which is assembled on the body 4 through the leakage collection port f. When a liquid leaks, when After the liquid flows into the body 4 from the liquid flow hole a and reaches a certain height, the liquid will flow out from the short drainage pipe 10 through the leakage collection port f, without causing the liquid to overflow and fail to flow out, resulting in greater losses. The remote leakage alarm also includes a magnetic switch (not shown in the figure), which is arranged in the upper port 8 of the body 4, and the magnetic switch communicates with an external alarm device through the switch wire h, and the sealing ball 2 and the body 4 An overflow channel 6 is arranged between them, a step surface c is arranged at the lower end of the float switch 5, and the spring 3 is arranged on the step surface c, and the inner diameter of the step surface is smaller than the inner diameter of the spring.

The remote leak alarm is screwed to the device under test through the connecting thread. The remote leak alarm must be installed vertically up and down to ensure that the float switch 5 falls under its own weight in the servo state and will not trigger the switch to cause malfunction.

When the device under test is in the servo state and has no leakage, the float of the float switch 5 is in the servo state under its own weight, the magnetic switch is not triggered, and the alarm does not send out an alarm signal.

When the device under test is in the servo state and leakage occurs, the leakage liquid will continuously flow from the sealing ball 2 and the overflow channel 6 of the body 4 to the bottom of the float switch 5 through the liquid flow hole a. Under the action of liquid buoyancy, it gradually moves upwards, triggering the action of the magnetic switch, connecting with the alarm device through the switch wire h, and finally outputting an alarm signal. When the leakage continues, it can be collected through the leakage collection port.

When the device under test is in working state, the working pressure will act on the sealing ball 2 from small to large, pushing the sealing ball 2 to overcome the elastic force of the spring 3 and quickly close the overflow channel.

In engineering tests and practical applications, the utility model can operate reliably and meet the requirements of design specifications. The balanced proportional mixer of the utility model can ensure a stable mixing ratio in a relatively large range of pressure and flow.

Aiming at the hidden dangers of the known technology, the utility model adopts the research idea of functional integration and the development principle of simple structure and low cost. The main structure is exquisitely designed, simple and easy to process. , Install it on the system under test, so that it has the function of automatically sending out an alarm signal when it leaks, so as to avoid property losses caused by failure to detect liquid leaks in time.

The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (9)

1. a long-range leakage alarm, it is characterized in that, comprise body, float switch, ball sealer, end cap, spring and liquid flow hole, described end cap is threaded connection the upper port at described body, described float switch is threaded with described end cap, one end of described spring is connected with described float switch, described float switch, described spring and described ball sealer are set in turn in described body, described float switch is near the described upper port of described body, described ball sealer is near the lower port of described body, and the described lower port of described body is provided with backing pin.

2. long-range leakage alarm as claimed in claim 1, is characterized in that, the side of described body is provided with near described upper port place to leak collects mouth.

3. long-range leakage alarm as claimed in claim 2, is characterized in that, this long-range leakage alarm also comprises drain stub, and described drain stub collects mouth assembling on the body by described leakage.

4. long-range leakage alarm as claimed in claim 1 or 2, it is characterized in that, this long-range leakage alarm also comprises magnetic switch, and described magnetic switch is arranged in the described upper port of described body, and described magnetic switch is connected with outside warning device by switch wire.

5. long-range leakage alarm as claimed in claim 1 or 2, is characterized in that, described liquid flow hole is arranged on described lower port place.

6. long-range leakage alarm as claimed in claim 5, is characterized in that, is provided with overflow ducts between described ball sealer and described body.

7. long-range leakage alarm as claimed in claim 1 or 2, is characterized in that, described backing pin is assembled on the body by limit pin hole.

8. long-range leakage alarm as claimed in claim 1 or 2, is characterized in that, the lower end of described float switch is provided with step surface, and described spring is arranged on described step surface.

9. long-range leakage alarm as claimed in claim 1 or 2, is characterized in that, the internal orifice dimension of described step surface is less than the internal diameter of described spring.