Pure water system for laboratory

Abstract

The utility model relates to a water purification system for laboratory, which comprises a box body (1), a water purifier (2) and a controller (3), the top of the box body (1) is provided with a water inlet (11) and an air vent (12), the bottom of the box body (1) is provided with a water outlet (13), a water storage cavity (14) is formed in the box body (1), and a liquid level meter (15) is arranged in the box body (1). The water purification machine (2) is communicated with a water inlet (11) of the box body (1) through a water inlet pipe (21), and the controller (3) is electrically connected with the water purification machine (2) and the liquid level meter (15) respectively, and is used for controlling the water purification machine (2) to produce pure water when the liquid level of the pure water in the box body (1) is lower, and controlling the water purification machine (2) to stop producing the pure water when the liquid level of the pure water in the box body (1) is higher. A certain amount of pure water can be kept in the box body (1) all the time, the pure water is prevented from overflowing, and the phenomenon that the pure water cannot be found in time when being used up is avoided.

Description

Technical Field

[0001] The utility model relates to a pure water system for a laboratory, in particular to the structure of the pure water system for a laboratory. Background Art

[0002] In biological and chemical experiments in research institutes, universities, and factories, a large amount of pure water is needed. For example, pure water is required for reagent preparation, sample extraction, vessel washing, analytical testing, and biological culture. Therefore, pure water is an indispensable and important resource in every link of the experiment. Pure water is usually produced by a water purifier.

[0003] In existing laboratories, due to the lack of dedicated pure water storage equipment, pure water produced by water purifiers is usually discharged through water pipes into temporary water buckets for storage. The water in the temporary water buckets is then pumped out for use in experiments. The water inlet of the temporary water buckets is usually large. When the water pipe is inserted into the temporary water buckets, and there is no dedicated person to supervise the production of pure water by the water purifier, the water in the temporary water buckets is usually not discovered until it overflows. If pure water enters the experimental equipment, it will cause equipment damage. If pure water enters the reagents or samples, it will cause waste and lead to laboratory contamination. In addition, when the pure water in the temporary water buckets is exhausted, it cannot be discovered in time, and it is necessary to wait for the water purifier to produce enough pure water before using it, which wastes time and affects the normal progress of the experiment.

[0004] The utility model aims to solve the problem that when pure water is produced and stored in an existing laboratory, the pure water in the bucket overflows and the pure water is exhausted and cannot be discovered in time. Utility Model Content

[0005] To address the above-mentioned problems, the present invention provides a laboratory pure water system comprising a housing 1, a water purifier 2, and a controller 3. The housing 1 is provided with a water inlet 11 and a vent 12 at the top, a water outlet 13 at the bottom, a water storage chamber 14 formed therein, and a liquid level gauge 15 disposed within the housing 1. The water purifier 2 is in communication with the water inlet 11 of the housing 1 via a water inlet pipe 21. The controller 3 is electrically connected to the water purifier 2 and the liquid level gauge 15, respectively, and is configured to control the water purifier 2 to produce pure water when the pure water level within the housing 1 is low, and to stop producing pure water when the pure water level within the housing 1 is high.

[0006] The utility model sets a liquid level gauge 15 in the box body 1, connects the pure water machine 2 with the water inlet 11 of the box body 1 through the water inlet pipe 21, and the controller 3 is electrically connected to the pure water machine 2 and the liquid level gauge 15 respectively. When the liquid level of pure water in the box body 1 is low, the pure water machine 2 can be controlled to produce pure water, and when the liquid level of pure water in the box body 1 is high, the production of pure water can be stopped, so that a certain amount of pure water is always maintained in the box body 1, and the pure water is prevented from overflowing into the experimental equipment when the pure water machine 2 produces pure water, causing damage to the experimental equipment or pure water entering the reagents and samples to cause laboratory contamination, and it is prevented from not being discovered in time when the pure water is exhausted, and waiting for temporary production of pure water when using it, which wastes time and affects the normal progress of the experiment.

[0007] Preferably, a filter cover 121 is provided on the vent 12. The filter cover 121 is cylindrical, with one end connected to the vent 12 by a thread, and the other end provided with a filter. The provision of the filter cover 121 on the vent 12 and the filter provided on the filter cover 121 prevent impurities from entering and affecting water quality. The threaded connection between the filter cover 121 and the vent 12 facilitates assembly and disassembly, and allows for easy cleaning of the filter.

[0008] Preferably, a low water level alarm device 4 is further included. A box body 16 is provided on the top of the box body 1. The low water level alarm device 4 includes a low water level switch 41, a low water level guide cylinder 42, a low water level float 43, a low water level connecting rod 44 and a low water level alarm 45. The low water level switch 41 is a normally open switch and is fixedly provided in the box body 16 at the bottom of the box body 16. The low water level guide cylinder 42 is vertically provided in the box body 16, and the lower end is fixedly connected to the top surface of the box body 1.

[0009] A low-water-level connecting rod 44 is vertically mounted, with its upper end positioned within the housing 16. A pin 441 is attached to the end of the rod, extending above the low-water-level switch 41. Its lower end extends through the low-water-level guide cylinder 42 and the top surface of the housing 1 into the water storage chamber 14. A low-water-level float 43 is fixed to the lower end of the rod 44. A low-water-level alarm 45 is connected to a power source via the low-water-level switch 41. The length of the rod 44 is configured so that when the pure water level within the housing 1 falls below 10%, gravity forces the pin 441 on the rod 44 to press the low-water-level switch 41, closing it.

[0010] A low water level alarm device 4 is provided so that the upper end of the low water level connecting rod 44 is located in the box body 16, a thimble 441 is provided at the end, and the lower end extends into the water storage chamber 14. A low water level float 43 is fixedly provided at the lower end of the low water level connecting rod 44, and a low water level alarm 45 is connected to the power supply through a low water level switch 41. When the liquid level of pure water in the box body 1 is lower than 10%, the low water level float 43 causes the thimble 441 on the low water level connecting rod 44 to press the low water level switch 41 under the action of gravity to close the low water level switch, causing the low water level alarm 45 to sound an alarm. This can prevent the pure water from being insufficient due to equipment failure such as the liquid level meter 15, the controller 3 or the pure water machine 2, and remind the staff to discover and deal with it in time.

[0011] Preferably, a high water level alarm device 5 is also included, which includes a high water level switch 51, a high water level guide cylinder 52, a high water level float 53, a high water level connecting rod 54 and a high water level alarm 55. The high water level switch 51 is a normally open switch, which is fixedly arranged in the box body 16 and located at the top of the box body 16. The high water level guide cylinder 52 is vertically arranged in the box body 16, and the lower end is fixedly connected to the top surface of the box body 1.

[0012] The high-water-level connecting rod 54 is vertically arranged, with its upper end disposed within the housing 16, below the high-water-level switch 51, and its lower end extending through the high-water-level guide cylinder 52 and the top surface of the housing 1 into the water storage chamber 14. A high-water-level float 53 is fixedly mounted at the lower end of the low-water-level connecting rod 44, and a high-water-level alarm 55 is connected to a power source via the high-water-level switch 51. The length of the high-water-level connecting rod 54 is set so that when the pure water level within the housing 1 exceeds 95%, the buoyancy of the high-water-level float 53 causes the upper end of the high-water-level connecting rod 54 to press against the high-water-level switch 51, closing it.

[0013] A high water level alarm device 5 is provided so that the upper end of the high water level connecting rod 54 is located in the box body 16 and the lower end extends into the water storage chamber 14. The high water level float 53 is fixedly provided at the lower end of the high water level connecting rod 54. The high water level alarm 55 is connected to the power supply through the high water level switch 51. When the liquid level of pure water in the box body 1 is higher than 95%, the high water level float 53 causes the ejector pin 441 on the high water level connecting rod 54 to press the high water level switch 51 to close it under the action of buoyancy, so that the high water level alarm 55 sounds an alarm. This can prevent the pure water amount from being too large due to equipment failure such as the liquid level meter 15, the controller 3 or the pure water machine 2, and remind the staff to discover and deal with it in time.

[0014] Preferably, a limit block 421 is provided in the low water level guide cylinder 42, and an axially extending limit groove 442 is provided on the low water level connecting rod 44. The limit block 421 is slidably disposed in the limit groove 442. The cooperation between the limit groove 442 and the limit block 421 can limit the low water level connecting rod 44, preventing the low water level connecting rod 44 from rotating, so that the ejector pin 441 is always located above the low water level switch 41.

[0015] Preferably, a water outlet valve 131 is provided on the water outlet 13 , and a water inlet valve 111 is provided on the water inlet 11 .

[0016] Preferably, the box body 1 is made of stainless steel or PVC.

[0017] Preferably, a plurality of boxes 1 are provided. Providing a plurality of boxes 1 can store pure water of different levels and standards respectively, and can also increase the water storage capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 . Schematic diagram of the overall structure of the laboratory pure water system;

[0019] Figure 2 .Schematic diagram of the internal structure of the box;

[0020] Figure 3 . Figure 2 A in the middle is an enlarged structural diagram;

[0021] Figure 4 .Schematic diagram of the cross section of the low water level guide cylinder and low water level connecting rod.

[0022] In the figure, 1. box body, 11. water inlet, 111. water inlet valve, 12. air vent, 121. filter cover, 13. water outlet, 131. water outlet valve, 14. water storage chamber, 15. liquid level gauge, 16. box body, 2. pure water machine, 21. water inlet pipe, 3. controller, 4. low water level alarm device, 41. low water level switch, 42. low water level guide cylinder, 421. limit block, 43. low water level float, 44. low water level connecting rod, 441. ejector pin, 442. limit slot, 45. low water level alarm, 5. high water level alarm device, 51. high water level switch, 52. high water level guide cylinder, 53. high water level float, 54. high water level connecting rod, 55. high water level alarm. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the laboratory pure water system includes a box body 1, a pure water machine 2, a controller 3, a low water level alarm device 4 and a high water level alarm device 5. The top of the box body 1 is provided with a water inlet 11, a vent 12 and a box body 16, the bottom of the box body 1 is provided with a water outlet 13, and a water storage chamber 14 is formed inside the box body 1, and a liquid level meter 15 is provided in the water storage chamber 14.

[0025] There are multiple boxes 1. The multiple boxes 1 can store pure water of different levels as needed to increase the water storage capacity.

[0026] The water outlet 13 is provided with a water outlet valve 131 , and the water inlet 11 is provided with a water inlet valve 111 .

[0027] The box body 1 is made of stainless steel or PVC.

[0028] The liquid level meter 15 is used to measure the liquid level of pure water in the tank 1 .

[0029] The water purifier 2 is connected to the water inlet 11 of the housing 1 through a water inlet pipe 21 and is used to produce pure water.

[0030] The controller 3 is electrically connected to the water purifier 2 and the liquid level meter 15 respectively, and controls the water purifier 2 to produce pure water when the liquid level of pure water in the tank 1 is low, and stops producing pure water when the liquid level of pure water in the tank 1 is high.

[0031] The time for the controller 3 to control the pure water machine 2 to produce pure water and to stop producing pure water can be set as needed. In this embodiment, the controller 3 is set to control the pure water machine 2 to produce pure water when the pure water level in the box 1 is lower than 20%, and to stop producing pure water when the pure water level in the box 1 reaches 90%.

[0032] Therefore, it can prevent the pure water from overflowing into the experimental equipment when the pure water machine 2 produces pure water, causing damage to the equipment, or the pure water from entering the reagents or samples, causing laboratory contamination. It can also prevent the pure water from being exhausted and not being discovered in time, and temporary pure water production during use, which wastes time and affects the normal progress of the experiment.

[0033] The vent 12 is provided with a filter cover 121. The filter cover 121 is cylindrical, with one end connected to the vent 12 via a threaded connection, and the other end provided with a filter screen. The filter cover 121 is provided on the vent 12, and the filter screen is provided on the filter cover 121 to prevent impurities from entering and affecting the water quality. The filter cover 121 is provided with a threaded connection to the vent 12, which allows for easy disassembly and cleaning of the filter screen.

[0034] like Figure 2 and Figure 3 As shown, the low water level alarm device 4 includes a low water level switch 41, a low water level guide cylinder 42, a low water level float 43, a low water level connecting rod 44 and a low water level alarm 45. The low water level switch 41 is a normally open switch, which is fixedly arranged in the box body 16 and located at the bottom of the box body 16.

[0035] The low water level guide cylinder 42 is vertically arranged in the box body 16 , and the lower end is fixedly arranged on the top surface of the box body 1 .

[0036] The low water level connecting rod 44 is vertically arranged, with its upper end located in the box body 16 and a pin 441 extending to the top of the low water level switch 41. The lower end passes through the low water level guide cylinder 42 and the box body 1 and extends into the water storage chamber 14. The low water level float 43 is fixedly arranged at the lower end of the low water level connecting rod 44.

[0037] The low water level alarm 45 is connected to the power supply through the low water level switch 41. When the low water level switch 41 is closed, the low water level alarm 45 is powered on and sounds an alarm.

[0038] The low water level guide cylinder 42 guides the low water level connecting rod 44 to prevent the low water level connecting rod 44 from tilting. A limit block 421 is provided in the low water level guide cylinder 42, and an axially extending limit groove 442 is provided on the low water level connecting rod 44. The limit block 421 is provided in the limit groove 442 to limit the low water level connecting rod 44 to prevent the low water level connecting rod 44 from rotating, so that the ejector pin 441 is always located above the low water level switch 41. Figure 4 .

[0039] The length of the low water level connecting rod 44 can be set as needed. In this embodiment, the length of the low water level connecting rod 44 is set so that when the liquid level of pure water in the box body 1 is lower than 10%, the low water level float 43, under the action of gravity, enables the pin 441 on the low water level connecting rod 44 to press the low water level switch 41 to close it.

[0040] A low water level alarm device 4 is provided. When the pure water level in the box 1 is lower than 10%, the low water level alarm 45 sounds an alarm. This can prevent the pure water from being insufficient due to equipment failure such as the liquid level meter 15, the controller 3 or the pure water machine 2, and remind the staff to discover and deal with it in time.

[0041] The high water level alarm device 5 includes a high water level switch 51, a high water level guide cylinder 52, a high water level float 53, a high water level connecting rod 54 and a high water level alarm 55. The high water level switch 51 is a normally open switch, which is fixedly arranged in the box body 16 and located at the top of the box body 16.

[0042] The high water level guide tube 52 is vertically arranged in the box body 16 , and the lower end is fixedly arranged on the top surface of the box body 1 .

[0043] The high water level connecting rod 54 is vertically arranged, with the upper end arranged in the box body 16 and located below the high water level switch 51, and the lower end passing through the high water level guide cylinder 52 and the box body 1 to extend into the water storage chamber 14.

[0044] The high water level float 53 is fixedly arranged at the lower end of the low water level connecting rod 44 , and the high water level alarm 55 is connected to the power supply through the high water level switch 51 .

[0045] The high water level guide cylinder 52 guides the high water level connecting rod 54 to prevent the high water level connecting rod 54 from tilting, so that the upper end of the high water level connecting rod 54 always faces the high water level switch 51.

[0046] The length of the high water level connecting rod 54 can be set as needed. In this embodiment, the length of the high water level connecting rod 54 is set so that when the liquid level of pure water in the box body 1 is higher than 95%, the high water level float 53 presses the high water level switch 51 at the upper end of the high water level connecting rod 54 to close it under the action of buoyancy.

[0047] A high water level alarm device 5 is provided. When the pure water level in the box 1 is higher than 95%, the high water level alarm 55 sounds an alarm. This can prevent the staff from discovering in time when the amount of pure water is too high due to equipment failure such as the liquid level meter 15, the controller 3 or the pure water machine 2.

[0048] The utility model sets a liquid level gauge 15 in the box body 1, connects the pure water machine 2 with the water inlet 11 of the box body 1 through the water inlet pipe 21, and the controller 3 is electrically connected to the pure water machine 2 and the liquid level gauge 15 respectively. When the liquid level of pure water in the box body 1 is low, the pure water machine 2 can be controlled to produce pure water, and when the liquid level of pure water in the box body 1 is high, the production of pure water can be stopped, so that a certain amount of pure water is always maintained in the box body 1, and the pure water is prevented from overflowing into the experimental equipment when the pure water machine 2 produces pure water, causing damage to the equipment, or the pure water enters the reagents or samples, causing laboratory contamination, and it is prevented from not being discovered in time when the pure water is exhausted, wasting time when using it, and affecting the normal progress of the experiment.

[0049] A low water level alarm device 4 is provided so that the upper end of the low water level connecting rod 44 is located in the box body 16, a thimble 441 is provided at the end, and the lower end extends into the water storage chamber 14. A low water level float 43 is fixedly provided at the lower end of the low water level connecting rod 44, and a low water level alarm 45 is connected to the power supply through a low water level switch 41. When the liquid level of pure water in the box body 1 is low, the low water level float 43 causes the thimble 441 on the low water level connecting rod 44 to press the low water level switch 41 under the action of gravity to close the low water level switch, causing the low water level alarm 45 to sound an alarm. This can prevent the pure water from being insufficient due to equipment failures such as the liquid level meter 15, the controller 3 or the pure water machine 2, and remind the staff to discover and deal with it in time.

[0050] A high water level alarm device 5 is provided so that the upper end of the high water level connecting rod 54 is located in the box body 16 and the lower end extends into the water storage chamber 14. The high water level float 53 is fixedly provided at the lower end of the high water level connecting rod 54. The high water level alarm 55 is connected to the power supply through the high water level switch 51. When the liquid level of the pure water in the box body 1 is high, the high water level float 53 causes the ejector pin 441 on the high water level connecting rod 54 to press the high water level switch 51 to close it under the action of buoyancy, so that the high water level alarm 55 sounds an alarm. This can prevent the pure water amount from being too large due to equipment failure such as the liquid level meter 15, the controller 3 or the pure water machine 2, and remind the staff to discover and deal with it in time.

[0051] It should be noted that the above embodiments are intended to illustrate the present invention rather than to limit the present invention.

Claims

1. Laboratory pure water system, characterized by: It includes a box (1), a pure water machine (2) and a controller (3), The box body (1) is provided with a water inlet (11) and a vent (12) at the top, a water outlet (13) at the bottom, a water storage cavity (14) is formed inside, and a liquid level gauge (15) is provided inside the box body (1); The water purifier (2) is connected to the water inlet (11) of the box (1) via a water inlet pipe (21); The controller (3) is electrically connected to the water purifier (2) and the liquid level meter (15) respectively, and is used to control the water purifier (2) to produce pure water when the liquid level of the pure water in the box (1) is low, and to stop producing pure water when the liquid level of the pure water in the box (1) is high.

2. The laboratory pure water system according to claim 1, characterized in that: The vent (12) is provided with a filter cover (121). The filter cover (121) is cylindrical, one end of which is connected to the vent (12) via a thread, and the other end of which is provided with a filter screen.

3. The laboratory pure water system according to claim 2, characterized in that: It also includes a low water level alarm device (4), A box body (16) is provided on the top of the box body (1). The low water level alarm device (4) comprises a low water level switch (41), a low water level guide cylinder (42), a low water level float (43), a low water level connecting rod (44) and a low water level alarm (45). The low water level switch (41) is a normally open switch, fixedly arranged in the box body (16) and located at the bottom of the box body (16). The low water level guide cylinder (42) is vertically arranged in the box body (16), and the lower end is fixedly connected to the top surface of the box body (1); The low water level connecting rod (44) is vertically arranged, with its upper end located in the box body (16), and its end is provided with a thimble (441) extending to above the low water level switch (41), and its lower end passes through the low water level guide cylinder (42) and the top surface of the box body (1) and extends into the water storage chamber (14); The low water level float (43) is fixedly arranged at the lower end of the low water level connecting rod (44); The low water level alarm (45) is connected to a power source via a low water level switch (41); The length of the low water level connecting rod (44) is set so that when the liquid level of pure water in the box (1) is lower than 10%, the low water level float (43) causes the ejector pin (441) on the low water level connecting rod (44) to press the low water level switch (41) to close it under the action of gravity.

4. The laboratory pure water system according to claim 3, characterized in that: It also includes a high water level alarm device (5), The high water level alarm device (5) comprises a high water level switch (51), a high water level guide cylinder (52), a high water level float (53), a high water level connecting rod (54) and a high water level alarm (55). The high water level switch (51) is a normally open switch, fixedly arranged in the box body (16) and located at the top of the box body (16). The high water level guide cylinder (52) is vertically arranged in the box body (16), and the lower end is fixedly connected to the top surface of the box body (1); The high water level connecting rod (54) is arranged vertically, with the upper end arranged in the box body (16) and located below the high water level switch (51), and the lower end passing through the high water level guide cylinder (52) and the top surface of the box body (1) and extending into the water storage chamber (14); The high water level float (53) is fixedly arranged at the lower end of the low water level connecting rod (44); The high water level alarm (55) is connected to a power source via a high water level switch (51); The length of the high water level connecting rod (54) is set so that when the liquid level of pure water in the box (1) is higher than 95%, the high water level float (53) causes the upper end of the high water level connecting rod (54) to press the high water level switch (51) to close it under the action of buoyancy.

5. The laboratory pure water system according to claim 4, characterized in that: A limiting block (421) is provided in the low water level guide cylinder (42). The low water level connecting rod (44) is provided with an axially extending limiting groove (442); The limiting block (421) is slidably disposed in the limiting groove (442).

6. The laboratory pure water system according to claim 5, characterized in that: The water outlet (13) is provided with a water outlet valve (131). The water inlet (11) is provided with a water inlet valve (111).

7. The laboratory pure water system according to claim 6, characterized in that: The box body (1) is made of stainless steel or PVC.

8. The laboratory pure water system according to any one of claims 1 to 7, characterized in that: The box body (1) is provided in plurality.

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