CN204989093U - A hang mercury device for electrochemical analysis - Google Patents

Abstract

The utility model discloses a hang mercury device for electrochemical analysis, including mercury cup, mercury pipe and capillary, the capillary embed in the mercury pipe and with mercury cup intercommunication, be equipped with the thimble that is used for the shutoff capillary inlet of liftable in the mercury cup. Should hang mercury device have simple structure, convenient to use, mercury consumption few, can prevent the advantage that mercury leaked.

Description

Mercury Suspension Apparatus for Electrochemical Analysis

technical field

The utility model mainly relates to the field of electrochemical analysis, in particular to a mercury suspension device for electrochemical analysis.

Background technique

The working electrodes used in electrochemical analysis methods mainly include mercury dropping electrodes and coating electrodes. The mercury dropping electrode is mainly composed of a mercury cup, a mercury tube, and a capillary. Mercury is stored in the mercury cup, and then enters the capillary through the mercury tube under the action of gravity to form mercury drops. In this structure, mercury droplets are not controlled, and there is a problem of large mercury consumption during use. However, after using the structural bundle, serious mercury leakage and serious environmental pollution problems will occur.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a mercury suspension device for electrochemical analysis with simple structure, convenient use, low mercury consumption, and prevention of mercury leakage.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A mercury suspension device for electrochemical analysis, comprising a mercury cup, a mercury tube and a capillary tube, the capillary tube is built in the mercury tube and communicated with the mercury cup, and the mercury cup is provided with a lifting device for blocking the capillary Entry thimble.

As a further improvement of the above technical solution:

There are upper air chamber, lower air chamber and mercury storage chamber inside the mercury cup, and a closed lifting diaphragm is arranged between the upper air chamber and the lower air chamber. One end of the thimble is connected with the lifting diaphragm, and the other end extends to the capillary inlet. , the mercury storage chamber communicates with the lower air chamber and the capillary.

The mercury cup is provided with an upper air inlet and a lower air inlet respectively communicating with the upper air chamber and the lower air chamber.

Both the upper air inlet and the lower air inlet are equipped with regulating valves.

The ports of the upper air chamber, the lower air chamber and the mercury storage chamber are all provided with detachable cocks.

Electrode joints are arranged on the mercury cup.

Compared with the prior art, the utility model has the advantages of:

In the mercury suspension device for electrochemical analysis of the utility model, a liftable thimble for blocking the capillary inlet is arranged in the mercury cup. In the working state, the thimble is raised, and the mercury liquid enters the capillary from the mercury cup, and then realizes the function of mercury dripping or hanging mercury from the end of the capillary, so that the mercury consumption can be controlled without waste. The analysis method provides a stable and reliable working electrode; in the non-working state, the thimble is lowered to block the entrance of the capillary. At this time, the mercury solution cannot enter the capillary, that is, the mercury solution will not leak out for no reason, and the mercury consumption is low. Volatile, environmental protection purpose, its structure is simple, easy to use.

Description of drawings

Fig. 1 is a schematic structural view of the mercury suspension device for electrochemical analysis of the present invention.

Fig. 2 is a schematic structural view of the mercury cup in the mercury suspension device for electrochemical analysis of the present invention.

Each label in the figure means:

1. Mercury cup; 11. Upper air chamber; 12. Lower air chamber; 13. Mercury storage chamber; 14. Lifting diaphragm; 15. Upper air inlet; 16. Lower air inlet; 2. Mercury tube; 3. Capillary ; 4, thimble; 5, regulating valve; 6, cock; 7, electrode connector.

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, an embodiment of the mercury suspension device used for electrochemical analysis of the present invention, the mercury suspension device includes a mercury cup 1, a mercury tube 2 and a capillary 3, and the capillary 3 is built in the mercury tube 2 And communicate with the mercury cup 1, the mercury cup 1 is provided with a liftable thimble 4 for blocking the entrance of the capillary 3. In the working state, the thimble 4 is raised, and the mercury liquid enters the capillary 3 from the mercury cup 1, and then realizes the function of mercury dripping or hanging mercury from the end of the capillary 3, so that the mercury consumption can be controlled and will not be wasted. A variety of analysis methods in the field provide stable and reliable working electrodes; in the non-working state, the thimble 4 is lowered to block the entrance of the capillary 3, at this time, the mercury solution cannot enter the capillary 3, that is, the mercury solution will not leak out for no reason, reaching In order to achieve the purpose of less mercury consumption, no volatilization, and environmental protection, the utility model has a simple structure and is convenient to use.

In this embodiment, an upper air chamber 11, a lower air chamber 12, and a mercury storage chamber 13 are provided inside the mercury cup 1, and a closed lifting diaphragm 14 is arranged between the upper air chamber 11 and the lower air chamber 12. The diaphragm 14 is connected, and the other end extends to the entrance of the capillary 3 , and the mercury storage chamber 13 communicates with the lower air chamber 12 and the capillary 3 . In this structure, the working principle of the heart is used to form a sealed mercury storage technology. When the air pressure in the upper air chamber 11 is greater than the air pressure in the lower air chamber 12, the lifting diaphragm 14 protrudes downwards and drives the thimble 14 to withstand the entrance of the capillary 3 downwards. Mercury cannot enter the capillary 3 from the lower air chamber 12; on the contrary, when the air pressure in the lower air chamber 12 is greater than the air pressure in the upper air chamber 11, the lifting diaphragm 14 is concave upward to lift the thimble 4, and mercury enters the capillary 3 through the lower air chamber 12 to form mercury droplets Or suspended mercury phenomenon, its structure is simple, ingenious design.

In this embodiment, the mercury cup 1 is provided with an upper air inlet 15 and a lower air inlet 16 communicating with the upper air chamber 11 and the lower air chamber 12 respectively, and the upper air inlet 15 and the lower air inlet 16 are all installed There is a regulating valve 5. In this structure, the setting of the upper air inlet 15 and the lower air inlet 16 has ensured that nitrogen enters the upper air chamber 11 and the lower air chamber 12 respectively from these two ports, and the upper air inlet 15 and the lower air inlet 16 are all installed There is a regulating valve 5, the regulating valve 5 of the lower air inlet 16 is similar to the structural device of a heart valve, nitrogen can enter the lower air chamber 12 through the valve, and the mercury in the mercury storage chamber 13 cannot be poured out under the barrier of the valve, and its structure is simple reliable.

In this embodiment, the ports of the upper air chamber 11 , the lower air chamber 12 and the mercury storage chamber 13 are all provided with detachable cocks 6 . The cock 6 mainly plays the role of sealing each chamber to ensure that gas and mercury do not leak.

In this embodiment, the mercury cup 1 is provided with an electrode joint 7 . The electrode joint 7 communicates with the mercury in the mercury storage chamber 13 and is used to connect the electrochemical control system, which is the place for collecting electrical signals.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make many possible changes and modifications to the technical solution of the utility model, or modify it into an equivalent change, etc. effective example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims (7)

1. A mercury suspension device for electrochemical analysis, comprising a mercury cup (1), a mercury tube (2) and a capillary (3), the capillary (3) is built in the mercury tube (2) and connected to the mercury cup (1) Communication, characterized in that: the mercury cup (1) is provided with a liftable thimble (4) for blocking the entrance of the capillary (3). 2. The mercury suspension device for electrochemical analysis according to claim 1, characterized in that: the mercury cup (1) is provided with an upper air chamber (11), a lower air chamber (12) and a mercury storage chamber (13 ), a closed lifting diaphragm (14) is provided between the upper air chamber (11) and the lower air chamber (12), one end of the thimble (4) is connected to the lifting diaphragm (14), and the other end extends to the capillary ( 3) At the entrance, the mercury storage chamber (13) communicates with the lower air chamber (12) and the capillary (3). 3. The mercury suspension device for electrochemical analysis according to claim 2, characterized in that: the mercury cup (1) is provided with an upper chamber communicating with the upper air chamber (11) and the lower air chamber (12) respectively. Air intake (15) and lower air intake (16). 4. The mercury suspension device for electrochemical analysis according to claim 3, characterized in that: both the upper air inlet (15) and the lower air inlet (16) are equipped with regulating valves (5) . 5. The mercury suspension device for electrochemical analysis according to any one of claims 2 to 4, characterized in that: the upper gas chamber (11), the lower gas chamber (12) and the mercury storage chamber (13 ) ports are provided with detachable cocks (6). 6. The mercury suspension device for electrochemical analysis according to any one of claims 2 to 4, characterized in that: the mercury cup (1) is provided with an electrode joint (7). 7. The mercury suspension device for electrochemical analysis according to claim 5, characterized in that: the mercury cup (1) is provided with an electrode joint (7).