Constant-temperature and constant-pressure clean type multi-eyewash-device eyewash station with water tank
By controlling the water pressure with a pressure pump and frequency converter, and combining a floating block and control board to achieve constant temperature and pressure, the problem of existing eyewash station equipment being unable to meet the needs of multiple users and unstable water pressure has been solved, thus realizing stable and efficient operation of the eyewash station.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI DAAO SAFETY PROTECTION EQUIP CO LTD
- Filing Date
- 2026-01-22
- Publication Date
- 2026-04-10
AI Technical Summary
The existing eyewash station equipment can only supply one eyewash station, the water pressure is insufficient to meet the needs of multiple people using it at the same time, and the water tank cannot achieve constant pressure, resulting in insufficient flow rate.
The system employs a combination of pressure pumps, frequency converters, and pressure transmitters to ensure stable water pressure in multiple eyewash stations and flushers; the heating coils achieve constant temperature and pressure through floating blocks and control boards, and the system, combined with backup pumps and sterilizing lamps, extends the lifespan of the water.
It achieves stable water pressure for multiple eyewash stations and flushers, meets national standard flow rates, extends the service life of the water quality, and improves the stability and convenience of the equipment.
Smart Images

Figure CN121818359A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of eyewash stations, and in particular to a constant temperature and pressure clean multi-eyewash station with a water tank. Background Technology
[0002] Eyewash stations are currently widely used as an important safety device in various locations where there is a risk of splashing toxic or harmful substances, such as in the petroleum, chemical, semiconductor, and pharmaceutical industries. Their main function is to rapidly reduce the further harm to workers from toxic or harmful substances in emergencies, buying valuable time for subsequent medical treatment.
[0003] In the prior art, an eyewash station includes a base, on which an eyewash station and a shower are mounted. A water tank is located on top of the base, and a heating device is installed inside the water tank. During use, the water in the tank is discharged from the eyewash station or shower under the influence of gravity, thereby achieving liquid drainage.
[0004] Regarding the aforementioned existing technology, firstly, the water tank's structure dictates that this device can only supply water to one set of eyewash stations, allowing only one person to use it simultaneously. When multiple people are using it, the water pressure is difficult to meet the requirements. Secondly, while the water tank maintains a constant temperature, it cannot maintain constant pressure because it relies on gravity within the tank for water supply. When the water level is high, the water pressure is sufficient, but when the water level drops to a certain level, the flow rate will not meet national standards, necessitating improvement. Summary of the Invention
[0005] To ensure that the water pressure discharged from the shower and eyewash stations meets the national standard flow rate and to improve the stability of the eyewash station, this application provides a constant temperature and pressure clean-type multi-eyewash station with a water tank.
[0006] The constant temperature and pressure clean-type multi-eyewash station with water tank provided in this application adopts the following technical solution: The device includes a base, on which are mounted a water storage tank, a pressure water pump, a control box, multiple eyewash stations, and multiple showers. The water storage tank contains a heating coil and is equipped with an inlet pipe and a drain pipe. The pressure water pump has an inlet pipe and a drain pipe connected to its two ends, respectively. The inlet pipe is connected to the water storage tank, and the drain pipe is connected to the eyewash stations and showers. The control box contains a frequency converter for controlling the speed of the pressure water pump. A pressure transmitter is installed on the drain pipe to detect the pressure in the drain pipe. When the water pressure decreases, the pressure transmitter sends a signal to the frequency converter, which then controls the speed of the pressure water pump to increase.
[0007] By adopting the above technical solution, during use, the pressure water pump can be used to open the eyewash station or rinsing device, thereby achieving the purpose of rinsing the staff. When multiple eyewash stations or rinsing devices need to be opened, the drain pipe pressure is reduced. Under the control of the pressure transmitter and frequency converter, each eyewash station or rinsing device reaches the water supply pressure, ensuring that the water pressure discharged from the shower and eyewash station meets the national standard flow rate, thus improving the stability of the eyewash station.
[0008] Preferably, a backup water pump is provided on the base, and the two ends of the backup water pump are connected to the inlet pipe and the outlet pipe, respectively.
[0009] By adopting the above technical solution, when the pressure water pump is damaged during use, the backup water pump can be turned on, thereby ensuring that the eyewash station can be used more stably.
[0010] Preferably, the water storage tank is equipped with a germicidal lamp, which is used to sterilize the water storage tank.
[0011] By adopting the above technical solutions, the sterilizing lamp can extend the service life of the water in the storage tank, from once a week to once every half month, or even once a month, thus improving the service life of the water in the storage tank.
[0012] Preferably, the heating coil is connected to both ends with floating flexible wires that extend out of the water storage tank, and a floating block is provided on the top of the heating coil, which causes the heating coil to float within the water storage tank.
[0013] By adopting the above technical solution, the heating coil is set to be longer during use, thus meeting the heating needs of the water storage tank. The floating block allows the heating coil to be positioned better in the middle of the water storage tank, reducing the proximity of the heating coil to the periphery of the water storage tank, thereby enabling more stable and uniform heating of the water in the water storage tank.
[0014] Preferably, a switch valve is provided at one end of the water injection pipe located inside the water storage tank, and a control board for controlling the on / off state of the switch valve is rotatably connected to the switch valve. The end of the control board away from the switch valve is rotatably connected to the floating block.
[0015] By adopting the above technical solution, during use, the floating block can detect the water level in the water tank. When the liquid reaches the limit height, it can close the switch valve in conjunction with the control board, thus automatically closing when injecting liquid and improving the stability of liquid injection.
[0016] Preferably, a connecting tension spring is provided at the bottom of the heating coil, and the end of the connecting tension spring away from the heating coil is fixed to the center of the bottom of the water storage tank.
[0017] By adopting the above technical solution, during use, the connecting spring and the control board can limit the heating coil, thereby allowing the heating coil to be better positioned in the center of the water tank and improving the stability of the heating coil during use.
[0018] Preferably, a drainage cone groove is provided at the bottom of the inner cavity of the water storage tank, the inner radial direction of the drainage cone groove gradually decreases downward, and the sewage pipe is located at the bottom of the drainage cone groove.
[0019] By adopting the above technical solution and guiding the water through the drainage cone groove, the water inside the water storage tank can be drained more fully, so that when the water in the water storage tank is replaced, the water inside the water storage tank can be drained more fully.
[0020] Preferably, a rotating liquid wheel is rotatably connected to the side wall of the drainage cone, and the rotating liquid wheel is coaxially arranged with the sewage pipe.
[0021] By adopting the above technical solution and using the rotating liquid wheel design, the water in the storage tank can be discharged in a rotating manner, thereby creating a vortex in the water, which makes it easier to clean impurities in the storage tank and improves the convenience of cleaning the storage tank.
[0022] Preferably, a plurality of cleaning rods are provided around the rotating liquid wheel, and the cleaning rods extend toward the side wall of the water storage tank in a direction away from the rotating liquid wheel. A cleaning brush is provided near the bottom of the water storage tank on the cleaning rods, and the cleaning brush is used to clean the bottom of the inner cavity of the water storage tank.
[0023] By adopting the above technical solution, the rotating liquid wheel can drive the cleaning rod to clean the bottom of the water storage tank during its rotation, ensuring the cleaning effect of the water storage tank.
[0024] Preferably, a rotating guide plate is provided around the heating coil, and the rotating guide plate is spirally arranged, with its spiral direction consistent with the rotation direction of the rotating liquid wheel.
[0025] By adopting the above technical solution, during use, on the one hand, the heating coil can heat the water in the water storage tank more efficiently, improving the convenience of using the water storage tank; on the other hand, the heating coil can make the water in the water storage tank rotate more efficiently, and make it easier to clean the impurities in the water storage tank.
[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. During use, the pressure water pump can be used to open the eyewash station or rinsing device to achieve the purpose of rinsing the staff; when multiple eyewash stations or rinsing devices need to be opened, the drain pipe pressure is reduced. Under the control of the pressure transmitter and frequency converter, each eyewash station or rinsing device reaches the water supply pressure, ensuring that the water pressure discharged from the shower and eyewash station meets the national standard flow rate, thus improving the stability of the eyewash station. 2. The heating coil is set to be relatively long during use to meet the heating needs of the water storage tank. The floating block can help the heating coil to be positioned better in the middle of the water storage tank, reducing the proximity of the heating coil to the periphery of the water storage tank, thereby making the water in the water storage tank heated more stably and evenly. 3. During use, the float can detect the water level in the storage tank. When the liquid reaches the limit height, it can close the valve in conjunction with the control panel, thus automatically closing when liquid is injected and improving the stability of liquid injection. Attached Figure Description
[0027] Figure 1 This is a schematic diagram illustrating the structure of the shower and eyewash station, which is the main features of Embodiment 1 of this application. Figure 2 This is a schematic diagram of the overall structure of the constant temperature and pressure clean-type multi-eyewash station with water tank according to Embodiment 1 of this application; Figure 3 This is a schematic diagram illustrating the main structure of the water storage tank in Embodiment 1 of this application; Figure 4 This is a schematic diagram illustrating the main structure of the water storage tank in Embodiment 2 of this application; Reference numerals: 1. Shower; 2. Eyewash station; 3. Control box; 4. Water inlet pipe; 5. Y-type filter; 6. Level gauge; 7. Drain pipe; 8. Water storage tank; 9. Base; 10. Inlet pipe; 11. Pressure water pump; 12. Standby water pump; 13. Drain pipe; 14. Air conditioner; 15. Heating coil; 16. Germicidal lamp; 17. Floating block; 18. Control panel; 19. Switch valve; 20. Floating flexible cord; 21. Connecting tension spring; 22. Drain cone groove; 23. Rotating impeller; 24. Cleaning rod; 25. Cleaning brush; 26. Rotating guide plate. Detailed Implementation
[0028] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0029] This application discloses a constant temperature and pressure clean-type multi-eyewash station with a water tank.
[0030] Example 1 Reference Figure 1This is a temperature- and pressure-controlled, water-tank-equipped, multi-eyewash station, comprising a base 9, a water tank 8, a pressure pump 11, a control box 3, multiple eyewash stations 2, and multiple showers 1. The water tank 8 contains a heating coil 15, and an air conditioner 14 is mounted on the base 9. The air conditioner 14 is connected to the heating coil 15, allowing for convenient temperature control within the water tank 8. The side wall of the water tank 8 has an inlet pipe 4 and a drain pipe 7. The pressure pump 11 has an inlet pipe 10 and a drain pipe 13 connected to its ends. The inlet pipe 10 connects to the water tank 8, and the drain pipe 13 connects to the eyewash stations 2 and the showers 1. This system ensures that as long as there is water in the water tank 8, the flow rate will always meet the requirements. Furthermore, the water tank can supply water to multiple eyewash stations 2 simultaneously without concerns about water pressure fluctuations. The control box 3 is equipped with a frequency converter for controlling the speed of the pressure water pump 11. A pressure transmitter is installed on the drain pipe 13. The pressure transmitter detects the pressure in the drain pipe 13. When the water pressure decreases, the pressure transmitter sends a signal to the frequency converter and controls the speed of the pressure water pump 11 to increase. This ensures that each eyewash station 2 or flushing device reaches the water supply pressure, and that the water pressure discharged from the shower 1 and eyewash station 2 meets the national standard flow rate, thus improving the stability of the eyewash station.
[0031] A backup water pump 12 is fixed on the base 9. The two ends of the backup water pump 12 are connected to the inlet pipe 10 and the drain pipe 13 respectively. When the pressure water pump 11 is damaged, the backup water pump 12 is turned on, so as to ensure that the eyewash station can be used more stably.
[0032] The water storage tank 8 is equipped with a sterilizing lamp 16, which is an ultraviolet lamp, so that the water in the water storage tank 8 can be used for a longer period of time, from once a week to once every half month, or even once a month.
[0033] A Y-type filter 5 is installed on the water inlet pipe 4, which can better filter the water and improve the cleanliness of the water in the water storage tank 8. A level gauge 6 is installed around the water storage tank 8 to detect the water level.
[0034] The implementation principle of the constant temperature and pressure clean-type multi-eyewash station with water tank in this application embodiment is as follows: the pressure water pump 11 can open the eyewash station 2 or the flushing device to achieve the purpose of rinsing the staff; when multiple eyewash stations 2 or flushing devices need to be opened, the pressure of the drain pipe 13 is reduced. Under the control of the pressure transmitter and frequency converter, each eyewash station 2 or flushing device reaches the water supply pressure, ensuring that the water pressure discharged by the shower 1 and the eyewash station 2 reaches the national standard flow rate, thereby improving the stability of the eyewash station.
[0035] Example 2 Reference Figure 4The difference between this embodiment and Embodiment 1 is that floating flexible hoses 20 are connected to both ends of the heating coil 15, and the floating flexible hoses 20 extend out of the water storage tank 8. The floating flexible hoses allow the heating coil 15 to move up and down. A float block 17 is installed on the top of the heating coil 15. The float block 17 is made of heat-resistant plastic material, and the float block 17 causes the heating coil to float within the water storage tank 8.
[0036] A rotating guide plate 26 is fixed around the heating coil 15. The rotating guide plate 26 is fixed in a spiral shape, and its spiral direction is consistent with the rotation direction of the rotating liquid wheel 23.
[0037] A switch valve 19 is installed at one end of the water injection pipe 4 inside the water storage tank 8. A control plate 18 for controlling the on / off state of the switch valve 19 is rotatably connected to the switch valve 19. The end of the control plate 18 away from the switch valve 19 is rotatably connected to the float block 17.
[0038] A connecting spring 21 is installed at the bottom of the heating coil 15. The end of the connecting spring 21 away from the heating coil 15 is fixed to the center of the bottom of the water storage tank 8. When installing the connecting spring 21, multiple connecting springs 21 can be set around the heating coil 15 to fix the heating coil 15 more stably.
[0039] The bottom of the inner cavity of the water storage tank 8 is provided with a drainage cone groove 22, which gradually decreases in diameter downwards. The sewage pipe 7 is installed at the bottom of the drainage cone groove 22, so that it can be discharged more conveniently.
[0040] A rotating liquid wheel 23 is rotatably connected to the side wall of the drainage cone 22, and the rotating liquid wheel 23 is coaxially arranged with the sewage pipe 7. Several cleaning rods 24 are fixed around the rotating liquid wheel 23. The cleaning rods 24 are rectangular rods and are fixed towards the side wall of the water storage tank in a direction away from the rotating liquid wheel 23. A cleaning brush 25 is installed near the bottom of the cleaning rods 24 and is used to clean the bottom of the inner cavity of the water storage tank 8.
[0041] The implementation principle of Example 2 is as follows: During use, the floating block can make the heating coil 15 better positioned in the middle of the water storage tank 8, reducing the proximity of the heating coil 15 to the periphery of the water storage tank 8. During its floating process, the water level in the water storage tank 8 can be detected. When the liquid reaches the limit height, the control board 18 can close the switch valve 19, thereby automatically closing when liquid is injected, improving the stability when liquid is injected.
[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A constant temperature and pressure clean-type multi-eyewash station with a water tank, characterized in that: Includes a base (9), on which are mounted a water storage tank (8), a pressure water pump (11), a control box (3), multiple eyewash stations (2) and multiple shower heads (1). The water storage tank (8) contains a heating coil (15), and is equipped with a water inlet pipe (4) and a drain pipe (7). The pressure water pump (11) is connected at both ends to an inlet pipe (10) and a drain pipe (13). The inlet pipe (10) is connected to the water storage tank. (8) Connected, the drain pipe (13) is connected to the eyewash station (2) and the shower (1), the control box (3) is equipped with a frequency converter for controlling the speed of the pressure water pump (11), the drain pipe (13) is equipped with a pressure transmitter, the pressure transmitter is used to detect the pressure of the drain pipe (13), when the water pressure decreases, the pressure transmitter is used to transmit a signal to the frequency converter and control the speed of the pressure water pump (11) to increase.
2. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 1, characterized in that: A backup water pump (12) is provided on the base (9), and the two ends of the backup water pump (12) are connected to the inlet pipe (10) and the outlet pipe (13) respectively.
3. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 2, characterized in that: The water storage tank (8) is equipped with a germicidal lamp (16), which is used to sterilize the water storage tank (8).
4. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 1, characterized in that: The heating coil (15) is connected to two ends with floating cords (20), which pass through the water storage tank (8). A floating block (17) is provided on the top of the heating coil (15), which drives the heating coil (15) to float in the water storage tank (8).
5. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 4, characterized in that: The water injection pipe (4) is provided with a switch valve (19) at one end inside the water storage tank (8). A control plate (18) for controlling the opening and closing of the switch valve (19) is rotatably connected to the switch valve (19). The end of the control plate (18) away from the switch valve (19) is rotatably connected to the float (17).
6. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 5, characterized in that: A connecting spring (21) is provided at the bottom of the heating coil (15), and the end of the connecting spring (21) away from the heating coil (15) is fixed to the center of the bottom of the water storage tank (8).
7. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 6, characterized in that: The water storage tank (8) has a drainage cone groove (22) at the bottom of its inner cavity. The drainage cone groove (22) gradually decreases in diameter downwards. The sewage pipe (7) is located at the bottom of the drainage cone groove (22).
8. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 7, characterized in that: The side wall of the drainage cone (22) is rotatably connected to a rotating liquid wheel (23), and the rotating liquid wheel (23) is coaxially arranged with the sewage pipe (7).
9. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 8, characterized in that: A plurality of cleaning rods (24) are provided around the rotating liquid wheel (23). The cleaning rods (24) extend toward the side wall of the water storage tank in a direction away from the rotating liquid wheel (23). A cleaning brush (25) is provided near the bottom of the water storage tank (8) on the cleaning rods (24). The cleaning brush (25) is used to clean the bottom of the inner cavity of the water storage tank (8).
10. The constant temperature and pressure clean-type multi-eyewash station with water tank according to claim 9, characterized in that: A rotating guide plate (26) is provided around the heating coil (15). The rotating guide plate (26) is spirally arranged, and its spiral direction is consistent with the rotation direction of the rotating liquid wheel (23).