Liquid adding device for measuring calcium carbonate and calcium carbonate measuring device

Abstract

The utility model discloses a liquid adding device for measuring calcium carbonate and a calcium carbonate measuring device. A burette II, wherein the burette II is fixed on the bracket; the container is filled with a sulfuric acid colored solution; a pipeline inlet of a water inlet of the peristaltic pump is formed in the sulfuric acid colored solution, a water outlet of the peristaltic pump is connected with a water outlet pipeline, and an outlet of the water outlet pipeline is inserted into the upper end of the burette II. When a colored sulfuric acid solution needs to be added into the burette II, the peristaltic pump pumps out the colored sulfuric acid solution in the container, the colored sulfuric acid solution enters the burette II through the outlet of the water outlet pipeline until the liquid level of the burette II is flush with that of the burette I, and the colored sulfuric acid solution is pumped through the peristaltic pump, so that the manpower can be saved, and the efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of calcium carbonate determination, and specifically relates to a calcium carbonate determination liquid adding device and a calcium carbonate determination device. Background Art

[0002] The main component of carbonate in soil is calcium carbonate, which has a significant impact on soil pH, nutrient status, soil colloid properties, etc. In soil analysis and testing, this item is also the basis for selecting soil analysis methods.

[0003] At present, there are two main methods for detecting soil calcium carbonate: volumetric titration and gas volumetric method. The gas volumetric method is to calculate the calcium carbonate content by measuring the volume of CO2 released after the acid reacts with the soil sample at a certain temperature and atmospheric pressure.

[0004] The patent with publication number CN219434766U discloses a simple device for determining soil calcium carbonate by gas volume method. During use, 0.5 mol / L sulfuric acid colored solution (with methyl red indicator added) is injected from the upper part of basic burette II. After the liquid levels of basic burette II and basic burette I are level, the scale on basic burette I is read.

[0005] However, since burette II is relatively high and has a small inlet, it is inconvenient to add the sulfuric acid colored solution from the upper end of burette II. Utility Model Content

[0006] The utility model aims to provide a calcium carbonate determination liquid adding device and a calcium carbonate determination device, which can automatically convey a sulfuric acid colored solution into a burette II.

[0007] To achieve the above object, the utility model provides the following technical solution, a calcium carbonate determination liquid adding device, comprising:

[0008] Bracket;

[0009] A burette II, wherein the burette II is fixed on the bracket;

[0010] A container containing a sulfuric acid colored solution;

[0011] A peristaltic pump, wherein the pipeline inlet of the water inlet of the peristaltic pump is installed in the sulfuric acid colored solution, the water outlet is connected to the water outlet pipeline, and the outlet of the water outlet pipeline is inserted into the upper end of the burette II.

[0012] Furthermore, a flaring ring is fixed to the upper end of the burette II, the upper end diameter of the flaring ring is larger than the lower end diameter, the side wall of the flaring ring is inclined, the lower end of the flaring ring is fixedly connected to the upper end of the burette II, and the outlet of the water outlet pipeline is inserted into the flaring ring.

[0013] Furthermore, the outlet of the water outlet pipeline is located above the side wall of the expansion ring.

[0014] Also disclosed is a calcium carbonate determination device, comprising the above-mentioned liquid adding device and a burette I, wherein the burette I is fixed on the bracket, the burette I is arranged in parallel with the burette II, the lower end of the burette I and the lower end of the burette II are connected together through a transverse tube, the transverse tube is connected to a liquid outlet pipe, the liquid outlet pipe is connected to a liquid outlet valve, and the upper end of the burette I is connected to a detection bottle body through an exhaust pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) When sulfuric acid colored solution needs to be added to burette II, the peristaltic pump extracts the sulfuric acid colored solution in the container, and the sulfuric acid colored solution enters burette II through the outlet of the water outlet pipe until the liquid levels of burette II and burette I are level. Extraction by peristaltic pump can save manpower and is more efficient;

[0017] (2) The sulfuric acid colored solution drips from the outlet of the water outlet pipe onto the inclined side wall of the expansion ring, and the sulfuric acid colored solution slides into the burette II along the inclined side wall. In this way, the sulfuric acid colored solution will not generate bubbles when entering the burette II, thereby making the test result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the calcium carbonate determination device of the utility model;

[0019] Figure 2 for Figure 1 A partial enlarged view of point I in the middle;

[0020] Figure 3 for Figure 1 A partial enlarged view of position II in the middle;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure from another angle;

[0022] Figure 5 for Figure 1 A partial enlarged view of the part III in the middle;

[0023] Figure 6 It is a cross-sectional view of the telescopic shaft connection.

[0024] In the figure, 1, bracket; 2, burette II; 3, container; 4, peristaltic pump; 5, water inlet; 6, water outlet; 7, expansion ring; 8, burette I; 9, horizontal tube; 10, liquid outlet pipe; 11, liquid outlet valve; 12, three-way valve body; 13, first exhaust port; 14, second exhaust port; 15, third exhaust port; 16, guide rail; 17, slider; 18, horizontal ruler; 19, connecting plate; 20, connecting hole; 21, fixing sleeve; 22, fixing ring; 23, telescopic shaft; 24, convex ring; 25, positioning spring; 26, damping end; 27, handle; 28, water outlet pipeline; 29, detection bottle; 30, exhaust pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 6 The utility model provides a calcium carbonate determination liquid adding device and a calcium carbonate determination device technical solution.

[0027] A calcium carbonate determination liquid adding device, comprising:

[0028] Bracket 1;

[0029] Burette II 2, burette II 2 is fixed on the bracket 1;

[0030] Container 3, in which a sulfuric acid colored solution is installed;

[0031] The peristaltic pump 4 has a water inlet 5 installed in the sulfuric acid colored solution, and the water outlet 6 is connected to a water outlet pipeline 28, and the outlet of the water outlet pipeline 28 is inserted into the upper end of the burette II2.

[0032] When sulfuric acid colored solution needs to be added to burette II 2, the peristaltic pump 4 extracts the sulfuric acid colored solution in the container 3, and the sulfuric acid colored solution enters the burette II 2 through the outlet of the water outlet pipe 28 until the liquid levels of the burette II 2 and the burette I 8 are level. Extraction by the peristaltic pump 4 can save manpower and is more efficient.

[0033] A flaring ring 7 is fixed to the upper end of the burette II 2. The upper end diameter of the flaring ring 7 is larger than the lower end diameter. The side wall of the flaring ring 7 is inclined. The lower end of the flaring ring 7 is fixedly connected to the upper end of the burette II 2. The outlet of the water outlet pipe 28 is inserted into the flaring ring 7. The outlet of the water outlet pipe 28 is located above the side wall of the flaring ring 7.

[0034] When the sulfuric acid colored solution flows directly from the outlet of the water outlet pipe 28 into the burette II 2, bubbles will be generated, which will affect the test results. Therefore, a flaring ring 7 is provided, and the sulfuric acid colored solution drips from the outlet of the water outlet pipe 28 onto the inclined side wall of the flaring ring 7, and the sulfuric acid colored solution slides into the burette II 2 along the inclined side wall. In this way, the sulfuric acid colored solution will not generate bubbles when entering the burette II 2, so that the test results are more accurate.

[0035] A calcium carbonate determination device is also disclosed, comprising the above-mentioned liquid adding device and a burette I8, wherein the burette I8 is fixed on the bracket 1, and the burette I8 is arranged in parallel with the burette II2, and the lower end of the burette I8 and the lower end of the burette II2 are connected together through a transverse tube 9, and a liquid outlet pipe 10 is connected to the transverse tube 9, and a liquid outlet valve 11 is connected to the liquid outlet pipe 10, and the upper end of the burette I8 is connected to the detection bottle body 29 through an exhaust pipe 30.

[0036] In addition, a three-way valve body 12 is connected between the exhaust pipe 30 and the burette Ⅰ8. The three-way valve body 12 includes a first exhaust port 13, a second exhaust port 14 and a third exhaust port 15. The first exhaust port 13 is connected to the exhaust pipe 30, and the second exhaust port 14 is connected to the burette Ⅰ8. The three-way valve body 12 includes a reaction state and a ventilation state. In the reaction state, the first exhaust port 13 and the second exhaust port 14 are connected, and the third exhaust port 15 is blocked, and the gas generated by the detection bottle 29 can enter the burette Ⅰ8. In the ventilation state, the burette Ⅰ8 is connected to the third exhaust port 15, and the sulfuric acid colored solution can be added from the burette Ⅱ2.

[0037] A vertically arranged guide rail 16 is also fixed on the bracket 1 , a slide block 17 is mounted on the guide rail 16 , a transverse ruler 18 is fixed on the slide block 17 , and the transverse ruler 18 is located in front of the burette I8 and the burette II2 .

[0038] During the detection process, it is necessary to discharge the sulfuric acid colored solution through the liquid outlet valve 11 to reduce the liquid level in the burette II 2 to the same level as the liquid level in the burette I 8. By moving the horizontal ruler 18, it is convenient to observe whether the liquid level in the burette II 2 is at the same level as the liquid level in the burette I 8.

[0039] A connecting plate 19 is also fixed to the slider 17, and a connecting hole 20 is provided on the connecting plate 19. A fixing sleeve 21 is fixed on the connecting plate 19, and the fixing sleeve 21 is coaxial with the connecting hole 20. A fixing ring 22 is fixed to the side of the fixing sleeve 21 away from the connecting plate 19, and a telescopic shaft 23 is passed through the fixing ring 22. A convex ring 24 is fixed to one end of the telescopic shaft 23 extending into the fixing sleeve 21, and a positioning spring 25 is sleeved on the telescopic shaft 23. The positioning spring 25 is arranged between the convex ring 24 and the fixing ring 22. One end of the telescopic shaft 23 extending out of the connecting hole 20 is a damping end 26. The positioning spring 25 gives force to the damping end 26 so that the damping end 26 abuts against the outer wall of the bracket 1, so that the slider 17 can be positioned at any height. Moving the slider 17 only requires a little force or pulling the telescopic shaft 23 outward.

[0040] A handle 27 is fixed to one end of the telescopic shaft 23 away from the bracket 1. The handle 27 can be used to easily pull the telescopic shaft 23 to separate the damping end 26 from the outer wall of the bracket 1, thereby facilitating the movement of the transverse ruler 18 to a suitable height for observation.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calcium carbonate determination liquid adding device, characterized in that, include: Bracket; A burette II, wherein the burette II is fixed on the bracket; A container containing a sulfuric acid colored solution; A peristaltic pump, wherein the pipeline inlet of the water inlet of the peristaltic pump is installed in the sulfuric acid colored solution, the water outlet is connected to the water outlet pipeline, and the outlet of the water outlet pipeline is inserted into the upper end of the burette II.

2. A calcium carbonate determination liquid adding device according to claim 1, characterized in that, A flaring ring is fixed to the upper end of the burette II, the upper end diameter of the flaring ring is larger than the lower end diameter, the side wall of the flaring ring is inclined, the lower end of the flaring ring is fixedly connected to the upper end of the burette II, and the outlet of the water outlet pipeline is inserted into the flaring ring.

3. A calcium carbonate determination liquid adding device according to claim 2, characterized in that, The outlet of the water outlet pipeline is located above the side wall of the expansion ring.

4. A calcium carbonate determination device, characterized in that, The liquid adding device comprises the liquid adding device as described in any one of claims 1 to 3, and further comprises a burette I, wherein the burette I is fixed on the bracket, the burette I is arranged in parallel with the burette II, the lower end of the burette I and the lower end of the burette II are connected together through a transverse tube, the transverse tube is connected to a liquid outlet pipe, the liquid outlet pipe is connected to a liquid outlet valve, and the upper end of the burette I is connected to the detection bottle body through an exhaust pipe.

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