CN203458989U

CN203458989U - Buffer solution preparation device

Info

Publication number: CN203458989U
Application number: CN201320603798.XU
Authority: CN
Inventors: 吴凡; 葛国平; 韦传东; 李春艳; 柳雄威
Original assignee: Ningbo University
Current assignee: Ningbo University
Priority date: 2013-09-18
Filing date: 2013-09-18
Publication date: 2014-03-05
Anticipated expiration: 2023-09-18

Abstract

The utility model provides a buffer solution preparation device, which belongs to the technical field of chemical engineering, and aims to solve the technical problems that the dissolution is slow and a material outlet of a reaction kettle is prone to blockage when a buffering solution is prepared in the prior art. The buffer solution preparation device comprises a reaction kettle which is connected with a No.1 pump connected with a dosing tank; the dosing tank is connected with a No.2 pump connected with the reaction kettle; a first valve and a first flow meter are connected with the No.1 pump and the dosing tank; a second valve and a second flow meter are connected with the No.2 pump and the reaction kettle. According to the utility model, the circulation flowing of a buffering solution replaces the traditional stirring, so that the dissolution is more rapid and thorough; a buffering agent is put into the dosing tank for pre-dissolution, so that the material outlet of the reaction kettle is prevented from being blocked during the dosing process of the buffering solution.

Description

Buffer solution device for formulating

Technical field

The utility model belongs to chemical technology field, relates to a kind of buffer solution device for formulating.

Background technology

When adding a certain amount of bronsted lowry acids and bases bronsted lowry in some solution, have and hinder the effect that pH value of solution changes, be called cushioning effect, such solution is called cushioning liquid.The mixed solution of weak acid and salt thereof (as HAc and NaAc), the mixed solution of weak base and salt thereof is (as NH ₃h ₂o and NH ₄c1) etc. be all cushioning liquid.

Conventionally when chemical industry operation, as needs configure buffer solution, normally buffer and liquid are put in reactor, stirring and dissolving is buffer solution.But this method of operating buffer solvent is slow, and if the buffer of pouring into too much, easily reactor discharging opening is blocked, thereby is affected the discharging of buffer solution.

Utility model content

The purpose of this utility model is for the problems referred to above, and a kind of buffer solution device for formulating is provided; Solved the technical problem that prior art is dissolved slowly when preparation buffer solution, reactor discharging opening is easily blocked.

For achieving the above object, the utility model has adopted following technical proposal: a kind of buffer solution device for formulating, comprise reactor, described reactor connects a pump, a described pump connects material-compound tank, and described material-compound tank connects No. two pumps, No. two described pump coupled reaction stills, between pump and material-compound tank, be connected with the first valve and first flow meter, between No. two pumps and reactor, be connected with the second valve and the second flowmeter.

In above-mentioned buffer solution device for formulating, described first flow meter and the second flow are counted spinner flowmeter.

In above-mentioned buffer solution device for formulating, described material-compound tank is uncovered tank.

Compared with prior art, the utility model has the advantage of: by circulating of buffer solution, replaced traditional stirring, made to dissolve more rapidly with thorough, by buffer being put into predissolve in material-compound tank, prevented that reactor discharging opening in buffer solution blending process is plugged.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment 1 that provides of the utility model;

Fig. 2 is the structural representation of the embodiment 2 that provides of the utility model;

Fig. 3 is the structural representation of the embodiment 3 that provides of the utility model;

Fig. 4 is the structural representation of the embodiment 4 that provides of the utility model.

In figure, reactor 1, material-compound tank 2, pump 21, No. two pumps 22, the first valve 31, the second valve 32, first flow meter 41, the second flowmeter 42.

The specific embodiment

Embodiment 1, as shown in Figure 1, a kind of buffer solution device for formulating, comprise reactor 1, described reactor 1 connects a pump 21, a described pump 21 is successively by the first valve 31 and the rear connection material-compound tank 2 of first flow meter 41, and described material-compound tank 2 connects No. two pumps 22, and No. two described pumps 22 are successively by the second valve 32 and the rear coupled reaction still 1 of the second flowmeter 42.

Described first flow meter 41 and the second flowmeter 42 are spinner flowmeter.

Described material-compound tank 2 is uncovered tank, and uncovered tank facilitates pouring into of buffer and observes the situation in tank.

The course of work of the present embodiment is, in material-compound tank 2, pours buffer into, and liquid is input to material-compound tank 2 from pump 21 of reactor 1 use, makes buffer preliminarily solubilised, then with No. two pumps 22, the liquid in material-compound tank 2 and buffer is input in reactor 1; By regulating the first valve 31 to make first flow meter 41 identical with the flow velocity of the second flowmeter 42 with the second valve 32, can reach the input and output balance of the liquid in material-compound tank 2.

Embodiment 2, and as shown in Figure 2, structure and the course of work of the present embodiment and embodiment 1 are basic identical, and difference is that No. two described pumps 22 are successively by the second flowmeter 42 and the rear coupled reaction still 1 of the second valve 32.

Embodiment 3, and as shown in Figure 3, structure and the course of work of the present embodiment and embodiment 1 are basic identical, and difference is that a described pump 21 is successively by first flow meter 41 and the rear connection material-compound tank 2 of the first valve 31.

Embodiment 4, as shown in Figure 4, structure and the course of work of the present embodiment and embodiment 1 are basic identical, difference is that No. two described pumps 22 are successively by the second flowmeter 42 and the rear coupled reaction still 1 of the second valve 32, and a described pump 21 is successively by first flow meter 41 and the rear connection material-compound tank 2 of the first valve 31.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. buffer solution device for formulating, comprise reactor (1), it is characterized in that, described reactor (1) connects a pump (21), a described pump (21) connects material-compound tank (2), described material-compound tank (2) connects No. two pumps (22), described No. two pumps (22) coupled reaction stills (1), between a pump (21) and material-compound tank (2), be connected with the first valve (31) and first flow meter (41), between No. two pumps (22) and reactor (1), be connected with the second valve (32) and the second flowmeter (42).

2. buffer solution device for formulating according to claim 1, is characterized in that, described first flow meter (41) and the second flowmeter (42) are spinner flowmeter.

3. buffer solution device for formulating according to claim 1 and 2, is characterized in that, described material-compound tank (2) is uncovered tank.