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Refrigerant leakage detection alarm device

A leak detection and alarm technology, applied in the field of alarms, can solve the problem of not providing special products and so on

Inactive Publication Date: 2019-11-08
SHANGHAI DMAIC ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no dedicated product that meets all the above functions

Method used

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  • Refrigerant leakage detection alarm device

Examples

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Effect test

Embodiment 1

[0021] Example 1: See Figure 1-3 , a refrigerant leakage detection alarm, including a processor, a local area network communication module, a bus communication module, buttons, a sensor module, an address code setting module and an alarm display module, the processor is respectively connected to the local area network communication module, the bus communication module, Button, display module, address code setting module and alarm display module.

[0022] The refrigerant alarm collects on-site Freon gas concentration or alarm information through analog or switch sensors;

[0023] Refrigerant alarm indicator light and buzzer perform sound and light display and reminder of Freon concentration exceeding the standard alarm, and indicate whether the communication status is normal or not;

[0024] The refrigerant alarm can modify the communication address code through hardware or software

[0025] The button on the refrigerant alarm can set the alarm mute and confirm the alarm inf...

Embodiment 2

[0028] Embodiment 2: On the basis of Embodiment 1, one refrigerant leakage detection alarm corresponds to no more than 8 chillers. The alarm display module is realized by combining a buzzer and an indicator light. The invention relates to a refrigerant alarm which can display 1 to 8 alarm messages with a red light flashing, can display the communication status, and can temporarily cancel the sound and light alarm messages with an alarm confirmation button, and can also select a silent mode. Such as image 3 As shown, a refrigerant sensor is installed near (lower side) the chiller to sense the refrigerant (Freon) gas concentration in the area, and convert it into a 0~10VDC or 4~20mA signal and transmit it to this product. This product can be set through special software. Set the alarm value, when the sensor signal exceeds the set value, an audible and visual alarm will be issued, and the corresponding indicator light will flash at the same time.

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Abstract

The invention discloses a refrigerant leakage detection alarm device. The device comprises a processor, a local area network communication module, a bus communication module, a button, a sensor module, an address code setting module and an alarm display module, wherein the processor is connected with the local area network communication module, the bus communication module, the button, a display module, the address code setting module and the alarm display module separately. According to the refrigerant leakage detection alarm device, a printed circuit board and a programming module are adopted, design and development are performed on refrigerant concentration detection and alarm functions, sensor signal acquisition, automatic alarm value setting and on-site sound-light alarm functions areachieved, a gateway routing function is also achieved, data communication can be performed by adopting different protocol methods (such as BACnet / IP or MODBUS TCP / IP) and an upper management system,upper management platform software can collect an on-site Freon gas concentration, a set value and an alarm state in real time, and the alarm set value can also be modified as needed.

Description

technical field [0001] The invention relates to the technical field of alarms, in particular to a refrigerant leakage detection alarm. Background technique [0002] Refrigerant is also called Freon. Freon is generally used as refrigerant in air-conditioning equipment. It circulates in closed pipelines through compressors, condensers, throttle valves, and evaporators. Changes, and then cool and heat the water, air and other media outside the equipment. [0003] As a refrigerant, Freon has good thermodynamic properties, but there are two problems. The molecular size of Freon gas is very small, and it is easy to escape from pipes, equipment gaps or connections or damage. At the same time, some Freon gases are poisonous to the human body or will damage the atmosphere. For example, the proportion of ozone, especially in a closed building environment, the relevant national regulations require real-time monitoring of the Freon gas concentration near the air-conditioning equipment....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B7/06H04L29/06
CPCG08B7/06H04L69/16H04L69/18
Inventor 张益群唐雍徐春华
Owner SHANGHAI DMAIC ENERGY TECH
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