CN2188767Y

CN2188767Y - Sensing device for testing sodium ion in liquor

Info

Publication number: CN2188767Y
Application number: CN 94225271
Authority: CN
Inventors: 唐炽岩
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-02-03
Filing date: 1994-02-03
Publication date: 1995-02-01
Anticipated expiration: 2004-02-03

Abstract

The utility model relates to a sensing device for testing the sodium ion in the liquor, which belongs to an auxiliary device of an analyzing and testing device. The utility model is composed of a pressure regulating constant flow device, a sodium sensing electrode, a reference electrode, a temperature sensing electrode, a functional block and an alkali tank, wherein, the front end of the pressure regulating constant flow device is provided with the self-cleaning filter of a spiral limiting valve core which is arranged on the functional block, and the exterior of the pressure regulating constant flow device is orderly provided with a liquor guide tube, a pressure cover and a water overflow tank; a pressure regulating block is arranged on the pressure cover; the lower end of the self-cleaning filter is communicated with a flowmeter, and the upper end of the flowmeter is connected with the liquor inlet end of the alkalization tube through a liquor guide flexible tube; the outlet end of the alkalization tube is orderly communicated with a temperature testing pool, a testing pool and a reference pool. The utility model has the advantages of stable and adjustable pressure and flow quantity, constant flow, good alkalization effect, long service life of the alkalization tube, etc., and is suitable for matching with the secondary instrument to test the sodium ion of the liquor.

Description

Sensing device for testing sodium ion in liquor

The utility model relates to a kind of sensing device that detects sodion in the solution, belongs to the auxiliary equipment of analysis and detecting instrument, be particularly suitable for the supporting detection solution of secondary instrument in sodion.

Detect Na ion concentration in the solution, all will eliminate hydrionic interference, known straightforward procedure is to have the sample line of infiltration base reagent (being often referred to low molecular organic amine), is commonly called as anemostat or the alkalization pipe immerses in the basic amine liquid, sample P H value is improved, reduce H ⁺Concentration, cooperate with secondary instrument and to realize detecting Na ion concentration in the solution; When going out saliva as the sun bed that detects the ion-exchange water treatment system with said method, not only need the frequent base reagent that adds, and the handling problem of giving that must solve water, because sample must be with pressure before entering the alkalization pipe, otherwise the carbonate that is present in a large number in the water generates unsettled carbonic acid after exchanging, pressure reduces, and its solubleness diminishes, and carbonic acid decomposes emits CO ₂Gas is attached to and has changed resistance to water-flow on the tube wall, influences current stabilization, causes the alkalization effect that can not keep constant, even cutout, makes the online sodium table can't operate as normal.Also exist such as pressure, flow non-adjustable simultaneously, alkaline etching is strong, make the alkalization pipe short serviceable life, even the dilution alkaline solution in generally also can only keep about three months, along with the consumption alkali lye of amine liquid is thinning, it is poor that the pH value of sample is high earlier back low trend, lye tank (vat) sealing, the alkaline solution of high volatility has some unsatisfactory parts such as strong impulse smelling out, frequent replace tubes, the loaded down with trivial details trouble of liquid feeding, is further improved.

The purpose of this utility model is to provide a kind of pressure, stability of flow is adjustable, constant current, the sensing device of sodion in the detection solution of keep constant alkalization effect, prolong the alkalization tube lifetime, the good airproof performance smell is not excessive, assembling is easy to maintenance easily.

The purpose of this utility model realizes by the following technical solutions, form by pressure regulation constant current, the quick electrode of sodium, contrast electrode, temperature sensitive electrode, functional block and alkali groove, its described pressure regulation constant current comprises that partly the self-cleaning filter that front end has a spiral current limliting spool is loaded on the functional block, its outer catheter, pressure shield, spilling water groove of being provided with in turn, the pressure regulation piece places on the pressure shield, self-cleaning filter communicates with the entrance point of flowmeter by the passage in the functional block, and the upper end of flowmeter communicates by the liquid feeding end of catheter with the alkalization pipe; The quick electrode of temperature sensitive electrode, contrast electrode and sodium places on the functional block by pond shell separately, and the thermometric pond communicates with outlet, the detection cell of alkalization pipe respectively, and detection cell communicates with reference cell, compressed air hose, and reference cell links to each other with the stock layout hole; The alkalization pipe places in the outstanding pipe dish of alkali groove top cover cap.

Described alkali groove comprises that inside groove places water jacket, water sealed tank in cover cap places between the water jacket top, the alkalization pipe places in the outstanding pipe dish of cover cap inside upper part, by being housed on it, fixes the tight fixed bolt that seals cap, water jacket top one side has overflow vent, and inside groove fills volatile low molecule organic amine.

Described alkalization pipe is good by infiltration amine performance, and wall thickness is that the thin polyethylene pipe of 0.005-0.03mm is made.

Described detection cell is provided with the wireway that links to each other with gas outlet in a side of the quick electrode of its sodium.

The inside of described self-cleaning filter is provided with plug, its outer fiber that twines.

The utility model compared with prior art, because adopted pressure regulation constant-current device, alkalization pipe to place in the outstanding pipe dish and a series of technical measures such as the alkali groove of good leak tightness and through the model machine probationary certificate pressure arranged, advantages such as stability of flow is adjustable, constant current, the alkalization effect stability is reliable, the alkalization tube lifetime is long, smell is not excessive, assembling is easy to maintenance, implement simultaneously to be beneficial to and to apply easily.

Fig. 1 is a main TV structure synoptic diagram of the present utility model.

Fig. 2 is a plan structure synoptic diagram of the present utility model.

Fig. 3 is from washing the structure of filter synoptic diagram.

Example structure accompanying drawing of the present utility model is described, described pressure regulation constant current comprises that partly the self-cleaning filter 24 that front end has a spiral current limliting spool 26 is loaded on the functional block 8, its outer catheter 22, pressure shield 20, spilling water groove 23 of being provided with in turn, pressure regulation piece 21 places on the pressure shield 20, self-cleaning filter 24 communicates with the entrance point of flowmeter 18 by the passage in the functional block 8, and the upper end of flowmeter 18 communicates by the liquid feeding end of catheter 19 with alkalization pipe 7; Temperature sensitive electrode 11, contrast electrode 14 and the quick electrode 17 of sodium place on the functional block 8 by

pond shell

12,13,15 separately, thermometric pond 10 communicates with outlet, the detection cell of alkalization pipe 7 respectively, detection cell communicates with reference cell, compressed air hose 29, and reference cell has nesting tube 9; Alkalization pipe 7 places on the outstanding pipe dish 30 of alkali groove 1 top cover cap 5, alkali groove 1 comprises that inside groove 2 puts in the water jacket, cover cap 5 places on the water sealed tank between the inside and outside groove top, alkalization pipe 7 places in the outstanding pipe dish 30 of cover cap 5 inside upper part, it is fixing by the fastening bolt 3 that seals cap 6 is housed on it, water jacket top one side has overflow vent 4, fills volatile low molecule organic amine in the inside groove 2.Described alkalization pipe 7 is to be that the thin polyethylene pipe of 0.005-0.03mm is made by infiltration amine performance good wall thickness; Described detection cell is provided with the wireway 16 that links to each other with gas outlet 28 in a side of the quick electrode 17 of its sodium; The inside of described self-cleaning filter cleaner 24 is provided with plug 32, and its outer circle suffers a circle and twines fiber 31.

When using, realizes the utility model by following program, detected sample liquid enters catheter 22 from inlet opening 25 and also rises jack-up pressure shield 20 inflow spilling water grooves 23 gradually by discharging tube 27 discharges, examined sample liquid then passes filter cleaner 24 and is alkalized along dropping down under the passage of 32 of plugs to enter by catheter 19 in the alkalization pipe 7 through laggard flowmeter 18 constant currents of spiral current limliting spool 26 current limliting step-downs, PH raises, sample liquid process thermometric pond 10 after the alkalization is with sending measuring cell to from the pressurized air of compressed air hose 29, sample liquid 9 flows into water sealed tanks through reference cell from the stock layout hole then, discharge by overflow vent 4, the effect of the quick electrode 17 of the sodion of sample liquid and sodium obtains one in measuring cell has the electric potential signal of corresponding relation with Na ion concentration, send into secondary instrument together with the signal of contrast electrode in the reference cell 14, the temperature compensating signal of meanwhile temperature sensitive electrode 11 is done temperature compensation and handle the Na ion concentration that indicates afterwards in the sample liquid on display.

Claims

1, a kind of sensing device that detects sodion in the solution, it is characterized in that by the pressure regulation constant current, the quick electrode 17 of sodium, contrast electrode 14, temperature sensitive electrode 11, functional block 8 and alkali groove 1 are formed, its described pressure regulation constant current comprises that partly the self-cleaning filter 24 that front end has a spiral current limliting spool 26 is loaded on the functional block 8, its outer catheter 22 that is provided with in turn, pressure shield 20, spilling water groove 23, pressure regulation piece 21 places on the pressure shield 20, self-cleaning filter 24 communicates with the entrance point of flowmeter 18 by the passage in the functional block 8, and the upper end of flowmeter communicates by the liquid feeding end of catheter 19 with alkalization pipe 7; The quick electrode 17 of temperature sensitive electrode 11, contrast electrode 14 and sodium places on the functional block 8 by pond shell 12,13,15 separately, thermometric pond 10 communicates with outlet, the detection cell of alkalization pipe 7 respectively, detection cell communicates with reference cell, compressed air hose 29, and reference cell links to each other with stock layout hole 9; Alkalization pipe 7 places in the outstanding pipe dish 30 of alkali groove 1 top cover cap 5.

2, device according to claim 1, it is characterized in that described alkali groove 1 comprises that inside groove 2 places water jacket, water sealed tank in cover cap 5 places between the water jacket top, alkalization pipe 7 places in the outstanding pipe dish 30 of cover cap 5 inside upper part, it is fixing by the tight fixed bolt 3 that seals cap 6 is housed on it, water jacket top one side has overflow vent 4, and inside groove 2 fills volatile low molecule organic amine.

3, device according to claim 1 is characterized in that described alkalization pipe 7 is good by infiltration amine performance, and wall thickness is that the thin polyethylene pipe of 0.005-0.03mm is made.

4, device according to claim 1 is characterized in that described detection cell, is provided with the wireway 16 that links to each other with gas outlet 28 in a side of the quick electrode 17 of its sodium.

5, device according to claim 1 is characterized in that the inside of described self-cleaning filter 24 is provided with plug 32, its outside fiber 31 that twines.