阅读说明：本技术 一种精密ph计 (Precision PH meter ) 是由 于超 姜晔 秦传记 于 2020-12-18 设计创作，主要内容包括：本发明属于PH值测量设备技术领域,具体是指一种精密PH计,包括PH计,PH计设有电极检测头,还包括冷却介质放置槽,冷却介质放置槽内放置有检测液冷却容器,检测液冷却容器内设有测温装置,测温装置的测头部分伸入检测液冷却容器的中心位置,检测液冷却容器的底部连通有第一输送管道的入口,第一输送管道的出口连通有油滴污物吸附装置的上端,油滴污物吸附装置的底部连通有第二输送管道的入口,第二输送管道从入口一侧至出口一侧依次设有第一微型水泵和微型滤布过滤装置,第二输送管道的出口连通有检测液检测容器,电极检测头伸入检测液检测容器的内部。本发明提供一种精密PH计,具有高精度测量PH值的能力。(The invention belongs to the technical field of PH value measuring equipment, and particularly relates to a precise PH meter which comprises a PH meter, wherein the PH meter is provided with an electrode detection head, the precise PH meter also comprises a cooling medium placing groove, a detection liquid cooling container is placed in the cooling medium placing groove, a temperature measuring device is arranged in the detection liquid cooling container, a measuring head part of the temperature measuring device extends into the central position of the detection liquid cooling container, the bottom of the detection liquid cooling container is communicated with an inlet of a first conveying pipeline, an outlet of the first conveying pipeline is communicated with the upper end of an oil-drop dirt adsorption device, the bottom of the oil-drop dirt adsorption device is communicated with an inlet of a second conveying pipeline, a first micro water pump and a micro filter cloth filtering device are sequentially arranged from one side of the inlet to one side of the outlet of the second conveying pipeline, an outlet of the second conveying pipeline is communicated with the detection liquid detection container, and the electrode. The invention provides a precise PH meter which has the capability of measuring the PH value with high precision.)

1. A precise PH meter comprises a PH meter body, wherein the PH meter body is provided with an electrode detection head, and the precise PH meter body is characterized by further comprising a cooling medium placing groove, a detection liquid cooling container is placed in the cooling medium placing groove, a cooling medium storage cavity is formed between the cooling medium placing groove and the detection liquid cooling container, a temperature measuring device is arranged in the detection liquid cooling container, a measuring head part of the temperature measuring device extends into the central position of the detection liquid cooling container, the bottom of the detection liquid cooling container is communicated with an inlet of a first conveying pipeline, an outlet of the first conveying pipeline is communicated with the upper end of an oil-drop pollutant adsorption device, the bottom of the oil-drop pollutant adsorption device is communicated with an inlet of a second conveying pipeline, the second conveying pipeline is sequentially provided with a first micro water pump and a micro filter cloth filtering device from one side of the inlet to one side of the outlet, and the outlet of the second conveying pipeline is communicated with a detection liquid detection container, the electrode detection head extends into the detection liquid detection container;

the oil drop dirt adsorption device comprises an installation cavity, wherein more than one inclined adsorption plate is arranged on the inner side wall of the installation cavity, a cotton felt is detachably installed on the upper surface of the inclined adsorption plate, a raised adsorption wool is arranged on the upper surface of the cotton felt, the upper end of the inclined adsorption plate is matched with the outlet of the first conveying pipeline, a detection liquid discharge port is arranged at the lower end of the inclined adsorption plate, when more than two inclined adsorption plates are arranged in the installation cavity, the more than two inclined adsorption plates are sequentially arranged in the installation cavity from top to bottom, the upper end part of the inclined adsorption plate positioned below corresponds to the detection liquid discharge port of the inclined adsorption plate positioned above, a detection liquid storage cavity is arranged at the bottom of the installation cavity and is communicated with the lowest detection liquid discharge port of the inclined adsorption plate in the installation cavity, the detection liquid storage cavity is communicated with the second conveying pipeline;

the miniature filter cloth filtering device comprises two conical cylinders, wherein the end with the larger opening diameter of the two conical cylinders is fixedly provided with a flange respectively, the two conical cylinders are fixedly connected through the flange and a bolt, the end with the smaller opening diameter of the two conical cylinders is communicated with two parts of a second conveying pipeline respectively, and filter cloth is hermetically arranged between the two flanges.

2. The precision PH meter of claim 1, wherein the temperature measuring device is a needle thermometer.

3. The precision PH meter of claim 1, wherein the first delivery line is provided with a second micro pump.

4. The precision PH meter according to claim 1, wherein the inclined angle of the inclined adsorption plate ranges from 15 degrees to 40 degrees.

Technical Field

The invention belongs to the technical field of PH value measuring equipment, and particularly relates to a precise PH meter.

Background

The pH meter is a common analytical instrument and is widely applied to the fields of agriculture, environmental protection, industry and the like. In the prior art, a commonly used mode is that a detection electrode of a pH meter is extended into a detected liquid, and an electronic display screen of the pH meter displays the pH value of the detected liquid;

in the environmental protection field, however, when the measurement mode of the prior art is used for detecting the pH value of outdoor water resources, as the outdoor water resource contains tiny insoluble sediments and grease pollutants which are difficult to be seen by naked eyes, when the detection electrode is used for detecting the outdoor water resource, insoluble sediment and grease can be stuck on the glass surface of the detection electrode, so that the glass surface of the detection electrode can not be fully contacted with the detected water source, the detection precision of the PH value of the detected liquid is influenced, the temperature of the detected liquid can also have great influence on the detection precision of the PH value, the standard PH temperature of the detected liquid is generally 25 ℃, therefore, in the prior art, the detection precision of the PH value is ensured by generally adopting a temperature compensation calculation mode aiming at different temperature differences, but the temperature difference is compensated through the calculation, when the temperature of the liquid to be detected is too high, the high-precision measurement of the pH value of the liquid to be detected still cannot be ensured.

Disclosure of Invention

The present invention is directed to a precision PH meter that solves the above problems.

In order to achieve the technical purpose, the technical scheme of the invention is as follows:

a precise PH meter comprises a PH meter body, wherein the PH meter body is provided with an electrode detection head and a cooling medium placing groove, a detection liquid cooling container is placed in the cooling medium placing groove, a cooling medium storage cavity is formed between the cooling medium placing groove and the detection liquid cooling container, a temperature measuring device is arranged in the detection liquid cooling container, a measuring head part of the temperature measuring device extends into the central position of the detection liquid cooling container, the bottom of the detection liquid cooling container is communicated with an inlet of a first conveying pipeline, an outlet of the first conveying pipeline is communicated with the upper end of an oil-drop-dirt adsorption device, the bottom of the oil-drop dirt adsorption device is communicated with an inlet of a second conveying pipeline, a first micro water pump and a micro filter cloth filtering device are sequentially arranged from one side of the inlet to one side of the outlet of the second conveying pipeline, and an outlet of the second conveying pipeline is communicated with a detection liquid detection container, the electrode detection head extends into the detection liquid detection container;

the oil drop dirt adsorption device comprises an installation cavity, wherein more than one inclined adsorption plate is arranged on the inner side wall of the installation cavity, a cotton felt is detachably installed on the upper surface of the inclined adsorption plate, a raised adsorption wool is arranged on the upper surface of the cotton felt, the upper end of the inclined adsorption plate is matched with the outlet of the first conveying pipeline, a detection liquid discharge port is arranged at the lower end of the inclined adsorption plate, when more than two inclined adsorption plates are arranged in the installation cavity, the more than two inclined adsorption plates are sequentially arranged in the installation cavity from top to bottom, the upper end part of the inclined adsorption plate positioned below corresponds to the detection liquid discharge port of the inclined adsorption plate positioned above, a detection liquid storage cavity is arranged at the bottom of the installation cavity and is communicated with the lowest detection liquid discharge port of the inclined adsorption plate in the installation cavity, the detection liquid storage cavity is communicated with the second conveying pipeline;

the miniature filter cloth filtering device comprises two conical cylinders, wherein the end with the larger opening diameter of the two conical cylinders is fixedly provided with a flange respectively, the two conical cylinders are fixedly connected through the flange and a bolt, the end with the smaller opening diameter of the two conical cylinders is communicated with two parts of a second conveying pipeline respectively, and filter cloth is hermetically arranged between the two flanges.

As a further optimized scheme, the temperature measuring device is a needle type temperature measuring instrument.

As a further optimized scheme, a second micro water pump is arranged on the first conveying pipeline.

As a further optimized scheme, the inclination angle of the inclined adsorption plate ranges from 15 degrees to 40 degrees.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

the liquid to be detected is stored in the detection liquid cooling container, the temperature measuring device measures the temperature of the liquid to be detected, a cooling medium such as ice water and the like is placed in the cooling medium storage cavity, the cooling medium cools the liquid to be detected through heat conduction of the glass detection liquid cooling container and ensures that the temperature of the liquid to be detected is reduced to be lower than 25 ℃, after the measuring device shows that the liquid to be detected is lower than 25 ℃ (when the liquid to be detected is lower than 25 ℃, the liquid to be detected has a stable PH value and high compensation precision), the first conveying pipeline conveys the liquid to be detected to the inclined adsorption plate, the liquid to be detected flows from the upper end of the inclined adsorption plate to the detection liquid discharge port at the lower end of the inclined adsorption plate through gravity, meanwhile, the cotton felt and the raised adsorption wool thereof adsorb oil liquid in the liquid to be detected and can adsorb a part of insoluble substances such as micro, then first miniature water pump makes the second pipeline will be detected liquid and deposit the chamber from detecting liquid and carry to detecting liquid and detect the container in, the second pipeline is when carrying and being detected liquid, will be detected the undissolved substance dust impurity in the liquid and further clear up through the filter cloth through miniature filter cloth filter equipment, guarantee to be detected the cleanliness factor of liquid, avoid oil drop dust viscous electrode to detect the head, influence and detect the precision, last electrode detection head detects the detected liquid that is detected in the liquid detection container, has better detection precision.

Drawings

FIG. 1 is a schematic view of a precision PH machine according to the present embodiment;

FIG. 2 is a schematic view of the internal structure of the micro-filter cloth filtering device in this embodiment;

in the attached figure, 1-electrode detection head, 2-cooling medium placing groove, 3-detection liquid cooling container, 4-cooling medium storage cavity, 5-temperature measuring device, 6-first conveying pipeline, 7-second conveying pipeline, 8-first micro water pump, 9-micro filter cloth filtering device, 10-detection liquid detection container, 11-installation cavity, 12-inclined adsorption plate, 13-cotton felt, 14-detection liquid discharge port, 15-detection liquid storage cavity, 16-conical cylinder, 17-filter cloth, and 18-second micro water pump.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

As shown in fig. 1 and 2, a precise PH meter comprises a PH meter, the PH meter is provided with an electrode detection head 1, and further comprises a cooling medium placing groove 2, a detection liquid cooling container 3 is placed in the cooling medium placing groove 2, a cooling medium storage cavity 4 is arranged between the cooling medium placing groove 2 and the detection liquid cooling container 3, a temperature measuring device 5 is arranged in the detection liquid cooling container 3, a measuring head part of the temperature measuring device 5 extends into the central position of the detection liquid cooling container 3, the bottom of the detection liquid cooling container 3 is communicated with an inlet of a first conveying pipeline 6, an outlet of the first conveying pipeline 6 is communicated with the upper end of an oil-drop pollutant adsorbing device, the bottom of the oil-drop pollutant adsorbing device is communicated with an inlet of a second conveying pipeline 7, the second conveying pipeline 7 is sequentially provided with a first micro water pump 8 and a micro filter cloth filtering device 9 from one side of the inlet to one side of the outlet, an outlet of the second conveying pipeline 7 is communicated with a detection liquid, the electrode detection head 1 extends into the detection liquid detection container 10;

the oil drop dirt adsorption device comprises an installation cavity 11, more than one inclined adsorption plate 12 which is obliquely arranged is arranged on the inner side wall of the installation cavity 11, a cotton felt 13 is detachably installed on the upper surface of the inclined adsorption plate 12, raised adsorption wool is arranged on the upper surface of the cotton felt 13, the upper end of the inclined adsorption plate 12 is matched with an outlet of a first conveying pipeline 6, a detection liquid discharge port 14 is arranged at the lower end of the inclined adsorption plate 12, when more than two inclined adsorption plates 12 are arranged in the installation cavity 11, the more than two inclined adsorption plates 12 are sequentially arranged in the installation cavity 11 from top to bottom, the upper end part of the inclined adsorption plate 12 positioned below corresponds to the detection liquid discharge port 14 of the inclined adsorption plate 12 positioned above, a detection liquid storage cavity 15 is arranged at the bottom of the installation cavity 11, and the detection liquid storage cavity 15 is communicated with the detection liquid discharge port 14 of the lowest inclined adsorption plate, the detection liquid storage cavity 15 is communicated with the second conveying pipeline 7;

the micro filter cloth filtering device 9 comprises two conical cylinders 16, wherein flange plates are respectively fixedly arranged at the ends, with larger calibers, of the two conical cylinders 16, the two conical cylinders 16 are fixedly connected through the flange plates and bolts, the ends, with smaller calibers, of the two conical cylinders 16 are respectively communicated with two parts of the second conveying pipeline 7, and filter cloth 17 is hermetically arranged between the two flange plates, so that the filter cloth 17 can be conveniently replaced.

When the liquid detection device works, liquid to be detected is stored in the detection liquid cooling container 3, the temperature measuring device 5 measures the temperature of the liquid to be detected, a cooling medium such as ice water and the like is placed in the cooling medium storage cavity 4, the cooling medium cools the liquid to be detected through heat conduction of the glass detection liquid cooling container 3 and ensures that the temperature of the liquid to be detected is reduced to be below 25 ℃, after the liquid to be detected is indicated to be below 25 ℃ by the measuring device (when the liquid to be detected is below 25 ℃, the liquid to be detected has a stable PH value and high compensation precision), the first conveying pipeline 6 conveys the liquid to be detected to the inclined adsorption plate 12, the liquid to be detected flows from the upper end of the inclined adsorption plate 12 to the detection liquid discharge port 14 at the lower end of the inclined adsorption plate 12 through gravity, and meanwhile, the cotton felt 13 and the raised adsorption wool thereof adsorb oil liquid in the liquid to, meanwhile, a part of insoluble substances such as tiny dust can be adsorbed, then the first micro water pump 8 enables the second conveying pipeline 7 to convey the detected liquid from the detection liquid storage cavity 15 to the detection liquid detection container 10, the second conveying pipeline 7 conveys the detected liquid, meanwhile, the insoluble substances, dust and impurities in the detected liquid are further cleaned through the filter cloth 17 through the micro filter cloth filtering device 9, the cleanliness of the detected liquid is guaranteed, the oil drop dust viscous electrode detection head 1 is prevented from influencing the detection precision, and finally the electrode detection head 1 detects the detected liquid in the detection liquid detection container 10, so that the detection precision is good.

As a further optimized scheme, the temperature measuring device 5 is a needle type temperature measuring instrument, and the structural characteristics are convenient for detecting the middle part of the detected liquid.

As a further optimized scheme, a second micro water pump 18 is arranged on the first conveying pipeline 6.

As a further optimized solution, the inclination angle of the inclined absorption plate 12 ranges from 15 degrees to 40 degrees.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.