An eye washer anti-freezing device

Abstract

The utility model provides an eye -washes anti -icing device, including nitrogen source, nitrogen source is linked with filter through nitrogen gas delivery pipeline intercommunication, nitrogen gas delivery pipeline and new water pipeline are linked with new water automatic valve intercommunication, the filter is linked with eye -washes through the pipeline, and the pipeline between the both is equipped with pressure sensor, pressure regulating valve, flow sensor, flow regulating valve and temperature sensor in proper order along the fluid direction, still include control system, control system is connected with new water automatic valve, pressure sensor, pressure regulating valve, flow sensor, flow regulating valve and temperature sensor electricity respectively, the utility model discloses can accurately monitor the temperature change of eye -washes, initiatively remove residual water, ensure that eye -washes is available at any time when low temperature, and through the record relevant data is convenient for subsequent analysis and optimization, further adjustment relevant parameter to improve the device performance and energy -conserving effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial emergency flushing equipment, and relates to an antifreeze device for eyewash stations. Background Technology

[0002] Eyewash stations, as essential emergency shower equipment, are widely used in chemical, pharmaceutical, laboratory, and other industrial settings with potential chemical hazards. Their core function is to provide a rapid and sufficient flow of clean water for emergency rinsing when personnel accidentally come into contact with harmful chemicals, minimizing the severity of injury and reducing subsequent risks. However, in cold seasons or low-temperature environments, residual water in the pipes, valves, and nozzles of eyewash stations after use is highly susceptible to freezing. Once ice forms, causing blockages, the eyewash station completely loses its emergency function, failing to dispense water when urgently needed, posing a serious threat to personnel's lives and health.

[0003] Currently, common antifreeze measures for eyewash stations involve wrapping them with external insulation materials. While this can slow down heat dissipation to some extent, it cannot completely remove residual water inside. Its effectiveness is minimal in extreme low temperatures or prolonged periods of inactivity, resulting in insufficient reliability. Therefore, developing a highly efficient antifreeze device that can actively remove residual water and ensure the low-temperature usability of eyewash stations is an urgent technical need and of significant safety importance. Utility Model Content

[0004] The purpose of this utility model is to provide an antifreeze device for eyewash stations, which addresses the problems existing in the prior art. This device solves the problem that when existing eyewash stations are used in low-temperature environments, residual water in the pipes, valves, and nozzles is prone to freezing and blockage, thus losing its emergency function and failing to dispense water when urgently needed.

[0005] Therefore, the present invention adopts the following technical solution: An antifreeze device for an eyewash station includes a nitrogen source, which is connected to a filter via a nitrogen delivery pipe, and the nitrogen delivery pipe is connected to a fresh water pipe via an automatic fresh water valve. The filter is connected to the eyewash station via a pipeline, and a pressure sensor, a pressure regulating valve, a flow sensor, a flow regulating valve, and a temperature sensor are sequentially installed along the fluid direction on the pipeline between the two. It also includes a control system, which is electrically connected to the new water automatic valve, pressure sensor, pressure regulating valve, flow sensor, flow regulating valve and temperature sensor respectively.

[0006] Specifically, the control system adopts a PLC control system.

[0007] Specifically, the nitrogen source is provided by a high-pressure nitrogen cylinder or a nitrogen generator.

[0008] Specifically, the temperature sensor is a thermistor or a thermocouple sensor.

[0009] The beneficial effects of this utility model are as follows: This invention can accurately monitor the temperature changes of the eyewash station, actively remove residual water, ensure that the eyewash station is always available at low temperatures, and record relevant data for subsequent analysis and optimization, further adjusting relevant parameters to improve the performance and energy-saving effect of the device. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] In the diagram, 1-nitrogen source, 2-nitrogen delivery pipeline, 3-filter, 4-pressure sensor, 5-pressure regulating valve, 6-flow sensor, 7-flow regulating valve, 8-temperature sensor, 9-eyewash station, 10-control system, 11-automatic fresh water valve, 12-fresh water pipeline. Detailed Implementation

[0012] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0013] like Figure 1 As shown, an eyewash station antifreeze device includes a nitrogen source 1, which is supplied by a high-pressure nitrogen cylinder or a nitrogen generator; the nitrogen source 1 is connected to a filter 3 through a nitrogen delivery pipe 2, and the nitrogen delivery pipe 2 is connected to a fresh water pipe 12 through a fresh water automatic valve 11.

[0014] The filter 3 is connected to the eyewash station 9 via a pipeline, and a pressure sensor 4, a pressure regulating valve 5, a flow sensor 6, a flow regulating valve 7, and a temperature sensor 8 are sequentially installed along the fluid direction on the pipeline between the two. Specifically, the temperature sensor 8 is a thermistor or thermocouple sensor. The temperature sensor 8 is installed inside the eyewash station 9 or near the outlet to ensure that the temperature sensor 8 can accurately monitor the temperature changes of the eyewash station 9.

[0015] An eyewash station antifreeze device also includes a control system 10. Specifically, the control system 10 adopts a PLC control system. The control system 10 is electrically connected to the new water automatic valve 11, pressure sensor 4, pressure regulating valve 5, flow sensor 6, flow regulating valve 7 and temperature sensor 8 respectively.

[0016] The usage process of this utility model is as follows: First, turn on nitrogen source 1 and set the initial nitrogen pressure, flow rate and purging time interval. When the temperature sensor 8 detects that the temperature is lower than the freezing risk temperature threshold, start the nitrogen purging program. According to preset conditions, such as the purging duration reaching the set time, or the temperature sensor 8 detecting that the temperature rises back to the set safe range and stabilizes for a period of time, the purging ends. At this time, the control system 10 closes the pressure regulating valve 5 and the flow regulating valve 7, stops the nitrogen purging, and records the relevant data of this purging for future updates.

Claims

1. An antifreeze device for an eyewash station, characterized in that, Includes a nitrogen source (1), which is connected to a filter (3) via a nitrogen delivery pipe (2), and the nitrogen delivery pipe (2) is connected to a fresh water pipe (12) via a fresh water automatic valve (11); The filter (3) is connected to the eyewash station (9) through a pipeline, and a pressure sensor (4), a pressure regulating valve (5), a flow sensor (6), a flow regulating valve (7) and a temperature sensor (8) are sequentially arranged along the fluid direction on the pipeline between the two. It also includes a control system (10), which is electrically connected to a new water automatic valve (11), a pressure sensor (4), a pressure regulating valve (5), a flow sensor (6), a flow regulating valve (7), and a temperature sensor (8).

2. The antifreeze device for an eyewash station according to claim 1, characterized in that, The control system (10) adopts a PLC control system.

3. The antifreeze device for an eyewash station according to claim 1, characterized in that, The nitrogen source (1) is provided by a high-pressure nitrogen cylinder or a nitrogen generator.

4. The antifreeze device for an eyewash station according to claim 1, characterized in that, The temperature sensor (8) is a thermistor or thermocouple sensor.

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