Closed sampling device for electronic-grade hydrogen peroxide

Abstract

The utility model discloses an electronic grade hydrogen peroxide closed sampling device which comprises a sampling cabinet, a cleaning table and a sampling table are arranged in the sampling cabinet, an inverted cleaning assembly is arranged on the cleaning table, an elastic pressing piece used for fixing a sampling bottle is arranged in the sampling cabinet and located above the inverted cleaning assembly, and the elastic pressing piece is connected with the sampling table. A sampling liquid outlet head communicated with the hydrogen peroxide storage tank is arranged in the sampling cabinet and above the sampling table. According to the sampling cabinet disclosed by the utility model, cleaning and sampling are integrated in the sampling cabinet, during sampling, a sampling bottle is inversely placed on the inversely-buckled cleaning assembly, and the inversely-buckled cleaning assembly can extend into the sampling bottle to comprehensively clean the interior of the sampling bottle, so that the condition that the sampling bottle shakes when being erected for cleaning is avoided; and the bottle bottom of the sampling bottle is elastically pressed and fixed through the elastic pressing piece, so that the sampling bottle can be prevented from sliding out upwards due to the impact of water flow, and the sampling bottle is ensured to be cleaned in place.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen peroxide sampling device field especially relates to a kind of electronic grade hydrogen peroxide closed sampling device. BACKGROUND

[0002] But due to the existence of a large number of pollutants in the environment, the monitoring indicators of the hydrogen peroxide produced are often up to quality requirements, but the sample is unqualified when sampling analysis. The prior art with patent number CN103471873B discloses a liquid centralized sampling cabinet, the high-efficiency filter at the top of the cabinet body ensures the clean environment inside the cabinet body, the cleaning tank and the pure water gun are used to clean the sampling bottle or other sampling devices, and high-purity nitrogen gas provided by the nitrogen gun can be used to dry the sampling bottle after cleaning. However, in order to ensure that the sampling bottle can be cleaned thoroughly, the water flow used for cleaning generally has a certain scouring force. If the sampling bottle is not fixed, it is easy to be washed away by the water flow, which ultimately affects the cleaning effect and the accuracy of detection. SUMMARY

[0003] The utility model aims at at least solving one of the above-mentioned technical problems, providing a kind of electronic grade hydrogen peroxide closed sampling device, clean sampling is integrated, can fixed cleaning's sampling bottle, ensure that sampling is not polluted.

[0004] To achieve the above purpose, the utility model adopts the technical scheme that:

[0005] A kind of electronic grade hydrogen peroxide closed sampling device, including sampling cabinet, the inside of the sampling cabinet is equipped with cleaning table and sampling table, the cleaning table is equipped with upside-down cleaning subassembly, the sampling cabinet in and located upside-down cleaning subassembly above position is equipped with the elastic presser for fixing sampling bottle, the sampling cabinet in and located sampling table above position is equipped with the sampling liquid outlet head that is connected with hydrogen peroxide storage tank.

[0006] As the improvement of the above technical scheme, the elastic presser includes press plate, the inner wall of the sampling cabinet and located upside-down cleaning subassembly above position is equipped with mounting column, the mounting column is equipped with sliding slot, the sliding slot is slidably installed with lifting block, one end of the press plate is hinged to the one end of the lifting block outward, the upper end of the lifting block is equipped with reset spring, the other end of the reset spring is in contact with the upper end inner wall of the sliding slot.

[0007] As the improvement of the above technical scheme, the one end of the lifting block outward is equipped with hinged hole, and one end of the press plate is rotatably installed in the hinged hole through the rotating shaft.

[0008] As the improvement of the above technical scheme, the upside-down cleaning subassembly includes water outlet base that is connected with water supply tank, the water outlet base is installed on the cleaning table, the water outlet base is connected with cleaning column, and the cleaning column is equipped with a plurality of water outlet holes.

[0009] As the improvement of the above technical scheme, the top of the sampling cabinet is provided with a filtering air supply mechanism.

[0010] As the improvement of the above technical scheme, the filtering air supply mechanism comprises a plurality of groups of air filtering plates installed in the top of the sampling cabinet, an air inlet is formed in the top of the sampling cabinet, and a fan is arranged in the sampling cabinet.

[0011] As the improvement of the above technical scheme, the sampling table is provided with a sampling bottle placing ring at a position corresponding to the sampling liquid outlet head.

[0012] As the improvement of the above technical scheme, the bottom of the cleaning table and the sampling table is respectively provided with a waste water collecting groove, and a plurality of water outlets are formed in the cleaning table and the sampling table and communicated with the waste water collecting groove.

[0013] As the improvement of the above technical scheme, the sampling cabinet is provided with a cabinet door, two groups of operation openings are formed in the cabinet door, and operation gloves are arranged in the two groups of operation openings.

[0014] As the improvement of the above technical scheme, a pollution isolation plate is arranged between the cleaning table and the sampling table.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The electronic-grade hydrogen peroxide closed sampling device integrates the cleaning and sampling in the sampling cabinet. When sampling, the sampling bottle is placed upside down on the upside-down cleaning assembly. The upside-down cleaning assembly can extend into the inside of the sampling bottle to clean the inside of the sampling bottle comprehensively, avoiding the shaking of the right-standing sampling bottle during cleaning. The bottle bottom of the sampling bottle is elastically pressed and fixed by the elastic pressing piece, so that the sampling bottle is prevented from sliding upward due to the impact of water flow, ensuring that the sampling bottle is cleaned in place. After cleaning, the sampling bottle can be directly transferred to the sampling table, and the sampling liquid outlet head is opened to sample. BRIEF DESCRIPTION OF DRAWINGS

[0017] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0018] Figure 1 The structure of the embodiment of the present application is shown in the figure;

[0019] Figure 2 The internal structure of the embodiment of the present application is shown in the figure Figure 1 ;

[0020] Figure 3 The internal structure of the embodiment of the present application is shown in the figure Figure 2 ;

[0021] Figure 4 A sectional view of the present application;

[0022] Figure 5 A structural schematic diagram of the elastic pressing piece in the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or there can be intervening components. When a component is referred to as being "disposed in the middle", it is not only disposed in the middle position, but also falls within the range defined by the middle. The terms "vertical", "horizontal", "left", "right", and similar terms used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] As Figures 1 to 5 The present application provides a kind of electronic grade hydrogen peroxide closed sampling device, including sampling cabinet 10, the inside of the sampling cabinet 10 is equipped with cleaning table 11 and sampling table 12, the cleaning table 11 is equipped with inverted-washing assembly 20, the sampling cabinet 10 in and located the position above inverted-washing assembly 20 is equipped with the elastic pressing piece 30 for fixing sampling bottle, the sampling cabinet 10 in and located the position above sampling table 12 is equipped with the sampling outlet head 40 for communicating hydrogen peroxide storage tank.Therein, the sampling outlet head 40 can be provided with solenoid valve on the sampling tube for communicating hydrogen peroxide storage tank, and the liquid outlet state of sampling is controlled by solenoid valve, and specific control system can refer to prior art.

[0027] Referring to Figures 2 to 5In the specific embodiment of the present application, the elastic pressing piece 30 comprises a pressing plate 31, a mounting column 32 is arranged on the inner wall of the sampling cabinet 10 and above the inverted cleaning assembly 20, a sliding groove 33 is arranged on the mounting column 32, a lifting block 34 is slidingly arranged in the sliding groove 33, one end of the pressing plate 31 is hingedly connected to the outer end of the lifting block 34, a reset spring 35 is arranged on the upper end of the lifting block 34, and the other end of the reset spring 35 abuts against the inner wall of the upper end of the sliding groove 33. After the sampling bottle is inserted into the inverted cleaning assembly 20, the bottom of the sampling bottle faces upward, and the pressing plate 31 can abut against the top of the bottom of the sampling bottle. The pressing plate 31 can always press the sampling bottle downward under the elastic pressing action of the reset spring 35, so as to prevent the sampling bottle from being washed out upward. Further, in order to prevent the pressing plate 31 from hindering the sampling bottle from being taken out or put in, the pressing plate 31 is hingedly arranged on the lifting block 34. Specifically, a hinged hole 36 is arranged on the outer end of the lifting block 34, and one end of the pressing plate 31 is rotatably arranged in the hinged hole 36. As shown in Figure 3 , the pressing plate 31 can rotate leftward and rightward, and the pressing plate 31 can be turned away from the top of the inverted cleaning assembly 20 before the sampling bottle is taken out or put in. Of course, a hinged structure capable of being locked in the prior art can also be used to ensure that the pressing plate 31 does not rotate during the process of fixing the sampling bottle.

[0028] Referring to Figures 2 to 4 , in the specific embodiment of the present application, the inverted cleaning assembly 20 comprises a water outlet base 21 connected with a water supply tank, the water outlet base 21 is arranged on the cleaning table 11, a cleaning column 22 is connected with the water outlet base 21, and a plurality of water outlet holes 23 are arranged on the cleaning column 22. The water outlet base 21 is internally provided with a water flow channel, and the water flow channel is larger than the cleaning column 22. When water flows into the cleaning column 22, a certain washing force can be generated to ensure the cleaning effect. An electromagnetic valve can also be arranged on the water supply pipe of the water outlet base 21 connected with the water supply tank, and a specific control system can refer to the prior art.

[0029] Referring to Figure 4 , in order to prevent the sampling liquid from being polluted by air during sampling, the top of the sampling cabinet 10 is provided with a filtering air supply mechanism 50. The filtering air supply mechanism 50 comprises a plurality of groups of air filtering plates 51 arranged in the top of the sampling cabinet 10, an air inlet is arranged on the top of the sampling cabinet 10, and a fan 52 is arranged in the sampling cabinet 10. An air outlet is also arranged on the side or back of the sampling cabinet 10. The filtering air supply mechanism 50 can also use the FFU fan filter unit in the prior art, the filtering screen has a precision of 0.5 um, and the environment particles in the sampling cabinet meet the standard.

[0030] In order to collect the waste liquid of cleaning or the waste liquid at the front end of the sampling pipeline, a waste water collecting groove 14 is arranged on the bottom of the cleaning table 11 and the sampling table 12, a plurality of water outlets communicating with the waste water collecting groove 14 are arranged on the cleaning table 11 and the sampling table 12, and the waste water collecting groove 14 is communicated with an external waste liquid recycling system.

[0031] In the specific embodiment of the present application, in order to determine the relative position of the sampling bottle and the sampling liquid outlet head 40, a sampling bottle placing ring 13 is arranged on the sampling table 12 and corresponds to the sampling liquid outlet head 40, and the sampling bottle is placed in the sampling bottle placing ring 13 after cleaning, so that the sampling operation can be continued.

[0032] Referring to Figure 1 In order to prevent the sampling bottle from being contaminated during the transfer process, a cabinet door 15 is arranged on the sampling cabinet 10, two groups of operation openings 16 are arranged on the cabinet door 15, and operation gloves 17 are arranged on the two groups of operation openings 16, so that the sampling bottle can be directly transferred by the operation gloves 17. Of course, in other embodiments, a mechanical arm can also be used for automatic transfer. During sampling, the sampling bottle is inverted and inserted on the cleaning column 22, the cabinet door 15 is closed after cleaning, and then the sampling bottle is transferred to the sampling table 12 by the operation gloves 17 for sampling. Under the filtration of the filtering air supply mechanism 50, the sampling process is ensured not to be contaminated.

[0033] The electronic grade hydrogen peroxide closed sampling device of the present application integrates cleaning and sampling in the sampling cabinet 10. During sampling, the sampling bottle is inverted and placed on the inverted cleaning assembly 20. The inverted cleaning assembly 20 can extend into the interior of the sampling bottle to clean the interior of the sampling bottle comprehensively, avoiding the shaking of the upright sampling bottle during cleaning. The bottle bottom of the sampling bottle is elastically pressed and fixed by the elastic pressing piece 30, so that the sampling bottle is prevented from sliding upward due to the impact of water flow, ensuring that the sampling bottle is cleaned in place. After cleaning, the sampling bottle can be directly transferred to the sampling table 12, and the sampling liquid outlet head 40 is opened for sampling.

[0034] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Any modification or equivalent replacement without departing from the spirit and scope of the present application should be covered in the scope of the technical solutions of the present application.

Claims

1. An electronic grade hydrogen peroxide closed sampling device, characterized by, The sampling cabinet is internally provided with a cleaning table and a sampling table, the cleaning table is provided with a reverse-washing assembly, the sampling cabinet is internally provided with an elastic pressing piece for fixing a sampling bottle above the reverse-washing assembly, and the sampling cabinet is internally provided with a sampling liquid outlet head communicating with a hydrogen peroxide storage tank above the sampling table.

2. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The elastic pressing piece comprises a pressing plate, the inner wall of the sampling cabinet is provided with a mounting column above the reverse-washing assembly, the mounting column is provided with a sliding groove, a lifting block is slidingly installed in the sliding groove, one end of the pressing plate is hingedly connected to the outward end of the lifting block, a reset spring is arranged on the upper end of the lifting block, and the other end of the reset spring abuts against the inner wall of the upper end of the sliding groove.

3. The electronic grade hydrogen peroxide closed sampling device according to claim 2, wherein, The outward end of the lifting block is provided with a hinged hole, and one end of the pressing plate is rotatably installed in the hinged hole through a rotating shaft.

4. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The reverse-washing assembly comprises a water outlet base communicating with a water supply tank, the water outlet base is installed on the cleaning table, the water outlet base is provided with a cleaning column in communication therewith, and the cleaning column is provided with a plurality of water outlet holes.

5. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The top of the sampling cabinet is provided with a filtering air supply mechanism.

6. An electronic grade hydrogen peroxide closed sampling device according to claim 5, wherein, The filtering air supply mechanism comprises a plurality of filter plates installed in the top of the sampling cabinet, the top of the sampling cabinet is provided with an air inlet, and the sampling cabinet is provided with a fan.

7. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The sampling table is provided with a sampling bottle placing ring at a position corresponding to the sampling liquid outlet head.

8. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The bottom of the cleaning table and the bottom of the sampling table are both provided with a wastewater collecting groove, and the cleaning table and the sampling table are both provided with a plurality of water outlets in communication with the wastewater collecting groove.

9. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The sampling cabinet is provided with a cabinet door, the cabinet door is provided with two operating openings, and the two operating openings are both provided with an operating glove.

10. The electronic grade hydrogen peroxide closed sampling device according to claim 1, wherein, The cleaning table and the sampling table are provided with a pollution isolation plate therebetween.

Images