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Temperature-control automatic on-off type water fire extinguishing control valve

A valve control, opening and closing technology, applied in valve details, valve device, fire rescue and other directions, can solve the problems of water cut off, secondary combustion of combustibles, short spray water time, etc. Effect

Active Publication Date: 2016-11-30
河南维科安广实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, as people pay more and more attention to fire-fighting equipment, the common sprinkler valves in fire-fighting are also gradually improved and perfected. The current sprinkler valves have introduced more devices such as memory alloys that can realize thermal expansion and cold contraction. Automatic water spraying and water stop, but due to the limitation of technical problems, the current memory alloy spray valves are mostly thermal expansion and contraction structures, and their travel time is relatively narrow. In the process of practical application, the valve opens after being heated. However, before the combustion is completely extinguished, the valve is closed due to the decrease in temperature, and the valve is also cut off from the water. The time for spraying water is relatively short, which is likely to cause secondary combustion of the combustion, and the fire extinguishing effect is very unsatisfactory.

Method used

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  • Temperature-control automatic on-off type water fire extinguishing control valve
  • Temperature-control automatic on-off type water fire extinguishing control valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] like figure 1 The structure of the temperature-controlled automatic opening and closing water fire extinguishing control valve shown includes a connecting end cover 1, a sleeve 2, an intermediate connecting section 3, a fixed cap 4, a magnetic ring sleeve 5, a telescopic rod 6, and a one-way memory alloy telescopic spring. 7, compression spring 8, movable column 9.

[0018] The center of the connecting end cover 1 is provided with an upwardly protruding connecting block 101, and a stepped hole is provided on the connecting end cover 1 corresponding to the connecting block 101; the rear part of the connecting block 101 is connected with a cylinder shaped sleeve 2; the outside of the connecting block 101 is provided with external threads, the fixed cap 4 is connected to the connecting block 101 through the intermediate connecting section 3, and the inner edge of the bottom of the fixed cap 4 is threaded, so Said middle connecting section 3 is threaded inside and outside,...

Embodiment 2

[0020] Embodiment 2 Improvement of the one-way memory alloy telescopic spring:

[0021] CuZnAl memory alloy spring

[0022] The spring is made of CuZnAl memory alloy wire and utilizes the two-way memory effect of shape memory alloy. This kind of spring fully demonstrates the typical structural form of industrial shape memory alloy elements.

[0023] With hot water or hot air as the heat source, the stretching temperature is 80°C-95°C, the free state is 45mm at low temperature (room temperature), and the stretched state is 200mm at high temperature (80°C-95°C).

[0024] The present invention has also carried out further improvement to CuZnAl memory alloy spring, and its preparation method is as follows:

[0025] (1) Determine memory alloy becomes, according to mass percentage:

[0026] Zn18%, Al4.5%, Ni1.1%, Ti0.2%, Fe0.05%, the rest is Cu;

[0027] (2) Preprocessing:

[0028] Put the memory alloy into the pretreatment solution and keep it at 30°C for 15-20 minutes. The fo...

Embodiment 3

[0033] Embodiment 3 Improvement of the one-way memory alloy telescopic spring:

[0034] CuZnAl memory alloy spring

[0035] The spring is made of CuZnAl memory alloy wire and utilizes the two-way memory effect of shape memory alloy. This kind of spring fully demonstrates the typical structural form of industrial shape memory alloy elements.

[0036] With hot water or hot air as the heat source, the stretching temperature is 80°C-95°C, the free state is 45mm at low temperature (room temperature), and the stretched state is 200mm at high temperature (80°C-95°C).

[0037] The present invention has also carried out further improvement to CuZnAl memory alloy spring, and its preparation method is as follows:

[0038] (1) Determine memory alloy becomes, according to mass percentage:

[0039] Zn21%, Al4.3%, Ni1.1%, Ti0.2%, Fe0.05%, the rest is Cu;

[0040] (2) Preprocessing:

[0041] Put the memory alloy into the pretreatment solution and keep it at 30°C for 15-20 minutes. The fo...

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PUM

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Abstract

The invention discloses a temperature-control automatic on-off type water fire extinguishing control valve which comprises a connecting end cover, a sleeve, a middle connecting section, a fixing cap, a magnetic ring sleeve, a telescopic rod, a one-way memory alloy telescopic spring, a compression spring and a movable column. In the valve, the one-way memory alloy telescopic spring is adopted and can only stretch out without drawing back at high temperature and draw back under the support of the compression spring, in the working process, the one-way memory alloy telescopic spring supports the telescopic rod so as to control the valve to be switched on, the one-way memory alloy telescopic spring is only responsible for supporting the telescopic rod but not drawing back and draws back mainly through the support of the compression spring, and therefore the switch-on time of the valve is effectively prolonged. The one-way memory alloy telescopic spring is improved.

Description

technical field [0001] The invention belongs to automatic spray valve equipment, in particular to a temperature-controlled automatic opening and closing water fire extinguishing control valve. Background technique [0002] In recent years, as people pay more and more attention to fire-fighting equipment, the common sprinkler valves in fire-fighting are also gradually improved and perfected. The current sprinkler valves have introduced more devices such as memory alloys that can realize thermal expansion and cold contraction. Automatic water spraying and water stop, but due to the limitation of technical problems, the current memory alloy spray valves are mostly thermal expansion and contraction structures, and their travel time is relatively narrow. In the process of practical application, the valve opens after being heated. But before the combustibles are completely extinguished, due to the reduction of the temperature, the valve is closed, and the valve also realizes the w...

Claims

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Application Information

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IPC IPC(8): F16K31/64A62C35/68
CPCF16K31/002A62C35/68
Inventor 康灿刘政勤曹志强
Owner 河南维科安广实业有限公司
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