Online water quality diluter

Abstract

The utility model discloses an on-line water quality diluter, which relates to the technical field of water quality monitoring equipment and comprises a water sample cup for storing a water body to be detected; the water sample diluting cup is used for diluting a water body to be detected; the metering pump is connected with the water sample cup through a first pipeline, and the metering pump is connected with the water sample dilution cup through a second pipeline; the dilution water cup is connected with the dilution water pump, the dilution water pump is used for conveying dilution water into the dilution water cup, a first overflow port is formed in the top of the dilution water cup, and the first overflow port is connected with the water sample dilution cup; the inflation pump is used for conveying gas into the water sample dilution cup. According to the water quality online diluter, the technical problem that when the monitoring index of a pollution source exceeds the upper limit of the detection range of monitoring equipment, the index cannot be effectively monitored is solved, the application range of the water quality monitoring equipment is expanded by diluting the water body to be detected to a proper concentration interval, and the problem that the concentration of the water body to be detected exceeds the range is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality monitoring equipment, in particular to an online water quality diluter. Background Art

[0002] With the acceleration of urbanization and the rapid development of industrial production, sewage discharge has continued to increase, putting great pressure on the environment. In order to effectively control sewage discharge and protect water resources and the ecological environment, online sewage quality monitoring has become an important means.

[0003] However, due to the wide variety of industrial products and varying production processes, the types of pollutants discharged during industrial production are numerous and their concentrations vary widely. Online water quality monitoring equipment, limited by its detection principle and metering mode, has an upper limit to its detectable range (i.e., maximum range). When the monitoring indicator of a pollution source exceeds the upper limit of the monitoring equipment's detection range, the indicator cannot be effectively monitored. On the other hand, to address the problem of pollutant concentration exceeding the range, redeveloping monitoring equipment that meets the requirements is extremely inefficient and costly, especially when multiple indicators exceed the range, as the time and economic cost required increase exponentially. Therefore, an online water quality diluter is proposed to address the above-mentioned problem. Utility Model Content

[0004] The purpose of the utility model is to provide an online water quality diluter, which solves the technical problem that the online water quality monitoring equipment is limited by its detection principle and metering mode, and when the monitoring index of the pollution source exceeds the upper limit of the detection range of the monitoring equipment, the index will not be effectively monitored.

[0005] To achieve the above-mentioned purpose, the utility model provides a water quality online diluter, comprising:

[0006] Water sample cup, used to store water to be tested;

[0007] Water sample dilution cup, used to dilute the water to be tested;

[0008] A metering pump, the metering pump is connected to the water sample cup via a first pipeline, the metering pump is connected to the water sample dilution cup via a second pipeline, and the metering pump is used to quantitatively transport the water to be tested in the water sample cup to the water sample dilution cup;

[0009] A dilution water cup, the dilution water cup is connected to a dilution water pump, the dilution water pump is used to deliver dilution water into the dilution water cup, the top of the dilution water cup is provided with a first overflow port, the first overflow port is connected to the water sample dilution cup;

[0010] An air pump is connected to the water sample dilution cup through a third pipeline, and the air pump is used to transport gas into the water sample dilution cup.

[0011] Preferably, the water sample cup is connected to a sampling pump, and the sampling pump is used to transport the water to be tested into the water sample cup.

[0012] Preferably, a first liquid level sensor is provided in the water sample cup, and the first liquid level sensor is used to detect the liquid level of the water to be detected in the water sample cup.

[0013] Preferably, a second liquid level sensor is provided in the water sample dilution cup, and the second liquid level sensor is used to detect the liquid level of the water body to be detected in the water sample dilution cup.

[0014] Preferably, an injection valve is provided in the first pipeline, and the injection valve is used to control the closing and opening of the first pipeline.

[0015] Preferably, a three-way valve is provided in the second pipeline, one end of the three-way valve is connected to a desludging pump, and the desludging pump is used to discharge the water to be tested remaining in the second pipeline into the water sample dilution cup.

[0016] Preferably, a one-way valve is provided in the third pipeline, and the one-way valve is used to control the closing and opening of the third pipeline.

[0017] Preferably, a first drain pipe is provided at the bottom of the water sample cup, the first drain pipe is connected to the waste water pipe, and a first drain valve is provided in the first drain pipe.

[0018] Preferably, a second drain pipe is provided at the bottom of the water sample dilution cup, the second drain pipe is connected to the waste water pipe, and a second drain valve is provided in the second drain pipe.

[0019] Preferably, a second overflow port is provided on the top of the dilution water cup, the second overflow port is lower than the first overflow port, the second overflow port is connected to a third drain pipe, the third drain pipe is connected to the waste water pipe, and a third drain valve is provided in the third drain pipe.

[0020] Compared with the above background technology, the utility model provides an online water diluter with the following beneficial effects:

[0021] (1) The utility model dilutes the water to be tested to a suitable concentration range through a water sample dilution cup, and provides the water to be tested that meets its detection range to the water quality monitoring equipment, thereby expanding the scope of application of the water quality monitoring equipment and effectively solving the problem of the concentration of the water to be tested exceeding the range. There is no need to invest in the re-development of monitoring equipment that meets the requirements, thereby reducing the cost of water quality testing.

[0022] (2) In the utility model, the dilution water cup adds dilution water to the water sample dilution cup by overflow injection through the first overflow port, which can eliminate the influence of bubbles caused by rapid injection, make the dilution water volume determination more accurate, improve the accuracy of the dilution ratio of the water body to be tested, and thus improve the reliability of water quality detection. In addition, the air is delivered to the water sample dilution cup by the air pump, and the water sample is mixed evenly by bubbling stirring, so that the dilution degree of high-concentration water samples is more thorough, further improving the reliability of water quality detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is a three-dimensional structural diagram provided by an embodiment of the present utility model.

[0025] Specifically, 1- sampling pump; 2- water sample cup; 3- sampling valve; 4- metering pump; 5- de-hanging pump; 6- three-way valve; 7- water sample dilution cup; 8- dilution water cup; 9- dilution water pump; 10- one-way valve; 11- inflation pump; 12- first liquid level sensor; 13- second liquid level sensor; 14- first drain valve; 15- second drain valve; 16- third drain valve; 17- waste water pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] like Figure 1 As shown, to achieve the above purpose, the utility model provides a water quality online diluter, comprising: a water sample cup 2, a water sample dilution cup 7 and a dilution water cup 8. Among them, the water sample cup 2 is used to store the water to be tested, and the water sample dilution cup 7 is used to dilute the water to be tested.

[0029] It should be noted that the water sample cup 2 is connected to the metering pump 4 through a first pipeline, and the metering pump 4 is connected to the water sample dilution cup 7 through a second pipeline. The metering pump 4 quantitatively transports the water to be tested in the water sample cup 2 to the water sample dilution cup 7.

[0030] The dilution cup 8 is connected to a dilution pump 9, which delivers dilution water to the dilution cup 8. A first overflow port is provided at the top of the dilution cup 8, which is connected to the water sample dilution cup 7. Once the dilution water in the dilution cup 8 reaches a certain volume, dilution water is added to the water sample dilution cup 7 through the first overflow port in an overflow injection manner. This eliminates the effects of bubbles caused by rapid injection, making the dilution water volume more accurate. Furthermore, the dilution water is fed through the dilution cup 8 to a fixed volume and the overflow port, providing the system with a stable and repeatable amount of dilution water, further improving the accuracy of the dilution water volume. Preferably, the dilution water is pure water, but tap water can also be used.

[0031] The water sample dilution cup 7 is connected to the air pump 11 through the third pipeline, and the air pump 11 delivers gas into the water sample dilution cup 7. The water sample is mixed evenly by bubbling and stirring, so that the dilution degree of high-concentration water samples is more thorough, thereby improving the reliability of water quality detection.

[0032] During use, the water to be tested is collected into the water sample cup 2, and the dilution water is delivered to the dilution cup 8 via the dilution water pump 9. After the dilution water in the dilution water cup 8 reaches a certain amount, it is added to the water sample dilution cup 7 from the first overflow port in an overflow injection manner. The metering pump 4 is started to quantitatively extract the sample from the water sample cup 2 to the water sample dilution cup 7 through the metering pump 4. The air pump 11 is started to deliver gas to the water sample dilution cup 7, and the diluted water to be tested in the water sample dilution cup 7 is stirred for several seconds to complete the dilution of the high-concentration water sample. By diluting the water to be tested to an appropriate concentration range, the water quality monitoring equipment is provided with water to be tested that meets its detection range, thereby expanding the scope of application of the water quality monitoring equipment and effectively solving the problem of over-range concentration of the water to be tested.

[0033] In one embodiment of the present invention, a water sampling cup 2 is connected to a sampling pump 1, which is used to collect water to be tested and transfer it to the water sampling cup 2 via the sampling pump 1. Furthermore, a first liquid level sensor 12 is provided within the water sampling cup 2. This first liquid level sensor 12 can detect the level of the water to be tested within the water sampling cup 2 in real time, preventing overflow. Furthermore, the first liquid level sensor 12 determines whether the water to be tested is being collected normally. If abnormal, an alarm is generated and feedback is sent to the water quality monitoring equipment, prompting personnel to conduct inspections and take appropriate measures.

[0034] Specifically, before the sampling pump 1 is turned on, it is determined whether the water sample cup 2 is in a water-free state. If there is water, it does not meet the requirements. After the sampling pump 1 is turned on, it waits for a set time, preferably 60 seconds, to determine whether the water body to be tested in the water sample cup 2 has reached a water-free state. If there is no water, it does not meet the requirements. By detecting the water state in the water sample cup 2, if it does not meet the requirements, an alarm will be issued to indicate that the water sample collection is abnormal, and the water quality monitoring equipment will be fed back to stop the current group test, reminding the staff to check and deal with it.

[0035] At the same time, a second liquid level sensor 13 is provided in the water sample dilution cup 7. This second liquid level sensor 13 can detect the liquid level of the water to be tested in the water sample dilution cup 7 in real time, further controlling the water sample. Furthermore, the second liquid level sensor 13 can determine whether the dilution water collection is normal. If abnormal, an alarm is generated and feedback is fed back to the water quality monitoring equipment.

[0036] Specifically, after the dilution water pump 9 is turned on for a certain period of time, when the second liquid level sensor 13 does not respond within the set time, preferably, the set time is 60 seconds, that is, the dilution water in the water sample dilution cup 7 does not reach the specified liquid level within the set time, an alarm will be triggered to remind the staff that the dilution water is insufficient, and the water quality monitoring equipment will be fed back to stop the current group test; when the dilution water in the water sample dilution cup 7 reaches the specified liquid level within the set time, a signal to stop sampling is fed back to the dilution water pump 9.

[0037] In one embodiment of the present invention, a second overflow port is provided at the top of the dilution water cup 8, wherein the second overflow port is lower than the first overflow port. Specifically, the first overflow port is provided at the upper end of the dilution water cup 8, and the second overflow port is provided at the lower end of the dilution water cup 8. The second overflow port is connected to the third drain pipe, and the third drain pipe is connected to the waste water pipe 17. A third drain valve 16 is provided in the third drain pipe. When the third drain valve 16 is opened, excess dilution water in the dilution water cup 8 enters the third drain pipe through the second overflow port, and enters the waste water pipe 17 through the third drain pipe for discharge and centralized collection.

[0038] The first pipeline is provided with an injection valve 3, which is used to control the closing and opening of the first pipeline. When the metering pump 4 needs to extract the water to be tested from the water sample cup 2 and input it into the water sample dilution cup 7, the injection valve 3 is opened. In addition, a three-way valve 6 is provided in the second pipeline, one end of which is connected to the desludging pump 5. The desludging pump 5 can deliver gas to the second pipeline, completely blowing the remaining water to be tested in the second pipeline into the water sample dilution cup 7. On the one hand, this prevents the remaining water to be tested in the second pipeline from causing memory effects that interfere with the next test; on the other hand, it ensures that the quantitative amount of the water to be tested in the water sample dilution cup 7 is more accurate, thereby improving the detection accuracy of the water quality monitoring equipment.

[0039] In one embodiment of the present invention, a one-way valve 10 is provided in the third pipeline. It should be noted that the one-way valve 10 controls the closing and opening of the third pipeline to ensure that the air pump 11 can only deliver gas to the water sample dilution cup 7, thereby ensuring that after the air pump 11 stops running, the water to be tested in the water sample dilution cup 7 will not flow back into the air pump 11, thereby protecting the air pump 11.

[0040] In addition, a first drain pipe is provided at the bottom of the water sample cup 2. The first drain pipe is connected to the waste pipe 17 and is provided with a first drain valve 14. The first drain valve 14 controls the closing and opening of the first drain pipe. A second drain pipe is provided at the bottom of the water sample dilution cup 7. The second drain pipe is connected to the waste pipe 17 and is provided with a second drain valve 15. The second drain valve 15 controls the closing and opening of the second drain pipe. After the water quality monitoring equipment completes sampling, the first drain valve 14, second drain valve 15, and third drain valve 16 are opened simultaneously. The excess water to be tested in the water sample cup 2 flows through the first drain pipe into the waste pipe 17. The water to be tested in the water sample dilution cup 7 flows through the second drain pipe into the waste pipe 17. The excess dilution water in the dilution water cup 8 flows through the second overflow port into the third drain pipe and then into the waste pipe 17. In other words, the residual liquid in the water sample cup 2, dilution water cup 8, and water sample dilution cup 7 is drained through the waste pipe 17. It should be noted that the bottoms of the water sample dilution cup 7 and the water sample cup 2 are both funnel-shaped, which helps to solve the problem of sample residue.

[0041] It should be noted that before diluting the water to be tested, the water sample cup 2 and the second pipeline are cleaned, the sampling pump 1 is started, the water to be tested is collected by the sampling pump 1 and transported to the water sample cup 2, wait for 60 seconds and then turn off the sampling pump 1, start the metering pump 4, and use the metering pump 4 to quantitatively extract the water to be tested in the water sample cup 2 to the water sample dilution cup 7, blow gas into the second pipeline through the de-hanging pump 5, and completely blow the water to be tested remaining in the second pipeline into the water sample dilution cup 7, start the inflation pump 11, and transport gas into the water sample dilution cup 7 through the inflation pump 11, stir the diluted water to be tested in the water sample dilution cup 7 for a certain period of time, open the second drain valve 15, and the water to be tested in the water sample dilution cup 7 enters the wastewater pipe 17 through the second drain pipe. The water sample dilution cup 7 is cleaned, the dilution water pump 9 is started, and pure water is transported into the dilution water cup 8 through the dilution water pump 9. After the pure water in the dilution water cup 8 reaches a certain amount, it is added to the water sample dilution cup 7 from the first overflow port in the form of overflow injection. After the water sample dilution cup 7 is full, the dilution water pump 9 is closed, and the air pump 11 is started. Gas is transported into the water sample dilution cup 7 through the air pump 11. The pure water in the water sample dilution cup 7 is stirred for a certain period of time, and the second drain valve 15 is opened. The pure water in the water sample dilution cup 7 enters the waste water pipe 17 through the second drain pipe.

[0042] When the present invention is used, the sampling pump 1 is started, and the water to be tested is collected into the water sample cup 2 through the sampling pump 1, the metering pump 4 is started, and the sample in the water sample cup 2 is quantitatively extracted into the water sample dilution cup 7 through the metering pump 4, the de-hanging pump 5 is started, and gas is blown into the second pipeline through the de-hanging pump 5, and the water to be tested remaining in the second pipeline is completely blown into the water sample dilution cup 7, the dilution water pump 9 is started, and the dilution water is transported into the dilution water cup 8 through the dilution water pump 9, and after the dilution water in the dilution water cup 8 reaches a certain amount, it is quantitatively added to the water sample dilution cup 7 from the first overflow port in the form of overflow sampling, the inflation pump 11 is started, and gas is transported into the water sample dilution cup 7 through the inflation pump 11, and the diluted water to be tested in the water sample dilution cup 7 is stirred for 60 seconds to complete the dilution of the high-concentration water sample, and the diluted water to be tested is measured by the water quality monitoring equipment to obtain the water quality monitoring index. Finally, open the first drain valve 14, the second drain valve 15 and the third drain valve 16, and the liquid in the water sample cup 2, the water sample dilution cup 7 and the dilution water cup 8 enter the waste water pipe 17 through the first drain pipe, the second drain pipe and the third drain pipe respectively, thereby draining the residual liquid in the water sample cup 2, the dilution water cup 8 and the water sample dilution cup 7.

[0043] In summary, by diluting the water to be tested to an appropriate concentration range, the water quality monitoring device is provided with water to be tested that meets its detection range, thereby expanding the scope of application of the water quality monitoring device and effectively solving the problem of the concentration of the water to be tested exceeding the range. At the same time, the air pump 11 is used to deliver gas into the water sample dilution cup 7, and the water sample is mixed evenly by bubbling and stirring, so that the high-concentration water sample is diluted more thoroughly, further improving the reliability of water quality testing.

[0044] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0045] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A water quality online diluter, characterized in that: include: Water sample cup, used to store water to be tested; Water sample dilution cup, used to dilute the water to be tested; A metering pump, the metering pump is connected to the water sample cup via a first pipeline, the metering pump is connected to the water sample dilution cup via a second pipeline, and the metering pump is used to quantitatively transport the water to be tested in the water sample cup to the water sample dilution cup; A dilution water cup, the dilution water cup is connected to a dilution water pump, the dilution water pump is used to deliver dilution water into the dilution water cup, the top of the dilution water cup is provided with a first overflow port, the first overflow port is connected to the water sample dilution cup; An air pump is connected to the water sample dilution cup through a third pipeline, and the air pump is used to transport gas into the water sample dilution cup.

2. A water quality online diluter according to claim 1, characterized in that: The water sample cup is connected to a sampling pump, and the sampling pump is used to transport the water to be tested into the water sample cup.

3. A water quality online diluter according to claim 2, characterized in that: A first liquid level sensor is provided in the water sample cup, and the first liquid level sensor is used to detect the liquid level of the water to be detected in the water sample cup.

4. The water quality online diluter according to claim 3, characterized in that: A second liquid level sensor is provided in the water sample dilution cup, and the second liquid level sensor is used to detect the liquid level of the water body to be detected in the water sample dilution cup.

5. A water quality online diluter according to any one of claims 1 to 4, characterized in that: An injection valve is provided in the first pipeline, and the injection valve is used to control the closing and opening of the first pipeline.

6. The water quality online diluter according to claim 5, characterized in that: A three-way valve is provided in the second pipeline, one end of the three-way valve is connected to a desludging pump, and the desludging pump is used to discharge the water to be detected remaining in the second pipeline into the water sample dilution cup.

7. The water quality online diluter according to claim 6, characterized in that: A one-way valve is provided in the third pipeline, and the one-way valve is used to control the closing and opening of the third pipeline.

8. A water quality online diluter according to any one of claims 1 to 4, characterized in that: A first drain pipe is provided at the bottom of the water sample cup, the first drain pipe is connected to the waste water pipe, and a first drain valve is provided in the first drain pipe.

9. The water quality online diluter according to claim 8, characterized in that: A second drain pipe is provided at the bottom of the water sample dilution cup. The second drain pipe is connected to the waste water pipe, and a second drain valve is provided in the second drain pipe.

10. The water quality online diluter according to claim 9, characterized in that: The top of the dilution water cup is provided with a second overflow port, which is lower than the first overflow port. The second overflow port is connected to a third drain pipe, which is connected to the waste water pipe, and a third drain valve is provided in the third drain pipe.

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