Steam fire extinguishing device for gas dryer

Abstract

The invention discloses a steam fire extinguishing device for a gas dryer. A steam fire extinguishing device for a gas drying machine comprises a steam spraying opening and a temperature sensor which are installed on a gas drying machine body. The steam spraying opening is in butt joint with a steam supply pipeline; the steam supply pipeline comprises a manual gate valve and a two-position two-way electromagnetic valve which are arranged in parallel, air inlets of the manual gate valve and the two-position two-way electromagnetic valve are both in butt joint with a steam inlet, and air outlets of the manual gate valve and the two-position two-way electromagnetic valve are both in butt joint with the steam spraying opening; and a pressure difference switch is mounted on the steam inlet. Different fire extinguishing control conditions are met through the manual gate valve and the two-position two-way electromagnetic valve which are arranged in parallel. And through the differential pressure switch, the steam pressure can be conveniently detected, and an alarm is given in time once pressure difference exists.

Description

Technical Field

[0001] The invention relates to the field of drying machines, in particular to a fire extinguishing device. Background Art

[0002] For large gas-fired dryers, the temperature is high during the drying process, which poses a risk of fire. The rotation of the inner drum generates static electricity when it rubs against the linens. After drying, if the linens are not removed in time, the dry and charged linens will accumulate, which also poses a fire hazard.

[0003] There is currently a lack of a fire extinguishing device that is applicable to gas drying machines. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a steam fire extinguishing device for a gas dryer to solve at least one of the above technical problems.

[0005] In order to achieve the above-mentioned object, the present invention provides a steam fire extinguishing device for a gas dryer, characterized in that it comprises a steam spray port and a temperature sensor installed on the gas dryer body;

[0006] The steam spray port is connected to a steam supply pipeline;

[0007] The steam supply pipeline includes a manual gate valve and a two-position two-way solenoid valve arranged in parallel, the air inlets of the manual gate valve and the two-position two-way solenoid valve are both connected to a steam inlet, and the air outlets of the manual gate valve and the two-position two-way solenoid valve are both connected to the steam spray port;

[0008] A differential pressure switch is installed on the steam inlet.

[0009] The present invention meets different fire extinguishing control conditions by means of a manual gate valve and a two-position two-way solenoid valve arranged in parallel. The steam pressure can be detected conveniently by means of a pressure difference switch, and an alarm is given in time once there is a pressure difference.

[0010] Further preferably, the temperature sensor is connected to a controller, and the controller controls the connection to the two-position two-way solenoid valve;

[0011] When the temperature sensed by the temperature sensor exceeds the set temperature value, the temperature sensor transmits a signal to the controller, and the controller controls the two-position two-way solenoid valve to open, and the steam spray port starts working to extinguish the fire.

[0012] Further preferably, when the two-position two-way solenoid valve fails to open, the controller is connected to an alarm device, and the alarm device prompts the use of a manual gate valve to start working at the steam spray port to extinguish the fire.

[0013] More preferably, the set temperature value is 250°C.

[0014] Further preferably, when the pressure at the steam inlet is lower than 0.5 MPa, the pressure difference switch opens and sends out an alarm signal.

[0015] Further preferably, the steam inlet is fed with saturated steam. Saturated steam fire extinguishing can not only quickly put out the fire at the starting point, but also will not cause damage to the equipment. Saturated steam is a relatively economical fire extinguishing agent for washing factories.

[0016] Further preferably, the steam spray port is installed at the top air inlet position of the gas dryer body.

[0017] Further preferably, the temperature sensor is installed inside the gas dryer body.

[0018] Beneficial effects:

[0019] The present invention uses high temperature saturated steam to extinguish fire, which can not only quickly extinguish the fire at the starting point, but also will not cause damage to equipment. For washing factories, high temperature saturated steam is a relatively economical fire extinguishing agent.

[0020] A steam spray port is added at the air inlet position on the top of the dryer. The internal temperature sensor sends a signal. When the temperature inside the dryer is too high, the temperature sensor sends a signal to open the valve that controls the opening and closing of the steam spray port. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of the present invention;

[0022] Figure 2 A schematic diagram of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] See also Figure 1 as well as Figure 2 , Specific embodiment 1: A steam fire extinguishing device for a gas dryer, comprising a steam spray port 3 and a temperature sensor 2 installed on a gas dryer body 1; the steam spray port 3 is connected to a steam supply pipeline; the steam supply pipeline comprises a manual gate valve 6 and a two-position two-way solenoid valve 5 arranged in parallel, the air inlets of the manual gate valve and the two-position two-way solenoid valve 5 are both connected to a steam inlet 7, and the air outlets of the manual gate valve 6 and the two-position two-way solenoid valve 5 are both connected to the steam spray port 3; a differential pressure switch 4 is installed on the steam inlet 7. The present invention meets different fire extinguishing control conditions by means of a manual gate valve and a two-position two-way solenoid valve 5 arranged in parallel. The differential pressure switch 4 facilitates the detection of steam pressure, and once there is a difference in pressure, an alarm is given in time.

[0025] The temperature sensor 2 is connected to a controller, and the controller controls a two-position two-way solenoid valve 5; when the temperature sensed by the temperature sensor 2 exceeds the set temperature value, the temperature sensor 2 transmits a signal to the controller, and the controller controls the two-position two-way solenoid valve 5 to open, and the steam spray port 3 starts working to extinguish the fire.

[0026] When the two-position two-way solenoid valve 5 fails to open, the controller is connected to the alarm device, which prompts the manual gate valve to start the steam spray port 3 to extinguish the fire. The set temperature value is 250℃. When the pressure at the steam inlet is lower than 0.5MPa, the differential pressure switch 4 opens and sends an alarm signal.

[0027] The steam inlet introduces saturated steam. Saturated steam fire extinguishing can not only quickly extinguish the fire at the fire point, but also will not cause damage to the equipment. For washing factories, saturated steam is a more economical fire extinguishing agent.

[0028] The steam spray port 3 is installed at the top air inlet position of the gas dryer body 1. The temperature sensor 2 is installed inside the gas dryer body 1.

[0029] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A steam fire extinguishing device for a gas dryer, characterized in that: It includes a steam spray port and a temperature sensor installed on the gas dryer body; The steam spray port is connected to a steam supply pipeline; The steam supply pipeline includes a manual gate valve and a two-position two-way solenoid valve arranged in parallel, the air inlets of the manual gate valve and the two-position two-way solenoid valve are both connected to a steam inlet, and the air outlets of the manual gate valve and the two-position two-way solenoid valve are both connected to the steam spray port; A differential pressure switch is installed on the steam inlet.

2. A steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: The temperature sensor is connected to a controller, and the controller controls the connection to the two-position two-way solenoid valve; When the temperature sensed by the temperature sensor exceeds the set temperature value, the temperature sensor transmits a signal to the controller, and the controller controls the two-position two-way solenoid valve to open, and the steam spray port starts working to extinguish the fire.

3. A steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: When the two-position two-way solenoid valve fails to open, the controller is connected to the alarm device, and the alarm device prompts the use of a manual gate valve to start the steam spray port to extinguish the fire.

4. A steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: The set temperature value is 250°C.

5. The steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: When the pressure at the steam inlet is lower than 0.5 MPa, the pressure difference switch opens and sends out an alarm signal.

6. A steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: The steam inlet introduces saturated steam.

7. A steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: The steam spray port is installed at the top air inlet position of the gas drying machine body.

8. A steam fire extinguishing device for a gas dryer according to claim 1, characterized in that: The temperature sensor is installed inside the gas dryer body.

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