CN217025514U

CN217025514U - Device for fixing carbon and removing hardness

Info

Publication number: CN217025514U
Application number: CN202121923064.0U
Authority: CN
Inventors: 刘寿山; 张珍君; 田晓东
Original assignee: SHANGHAI MEGA VISION MEMBRANE
Current assignee: SHANGHAI MEGA VISION MEMBRANE
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-07-22
Anticipated expiration: 2031-08-16

Abstract

The utility model provides a device for fixing carbon and removing hardness, which comprises a water pool and a carbon dioxide gas cabin, wherein the carbon dioxide gas cabin is positioned above the water pool and communicated with the water pool, a Venturi ejector is arranged inside the carbon dioxide gas cabin, and the carbon dioxide gas cabin is connected with a carbon dioxide gas inlet channel. The utility model leads gas-phase CO to be converted into gas-phase CO through a certain pressure₂Dissolving in water to form carbonate or bicarbonate ions, reacting with calcium and magnesium ions in water to form precipitate, and recoveringThe wastewater is recycled, resources are saved, the concentration of carbon dioxide in the atmosphere can be reduced, and the dual functions of carbon fixation and hardness removal are realized; the utility model does not need to add a hardness removing agent, has lower cost, does not generate byproducts, and has simple device structure, convenient operation, environmental protection and safety.

Description

Device for fixing carbon and removing hardness

Technical Field

The utility model relates to the field of water treatment devices, in particular to an IPC classification number C02F9/04, and more particularly relates to a device for carbon fixation and hardness removal.

Background

With the increase of various pollution in recent years, the shortage of water resources is more serious, and the water conservation and how to realize the recycling of the water resources are important links and research hotspots in the sustainable development process.

The hardness in water is too high or too low, which can have important influence on the health of human body, and most of the hardness removing methods in the prior art at present are added with certain medicaments to react with calcium and magnesium ions in water, but the method has the disadvantages of long reaction time, incomplete reaction and poor hardness removing effect. Meanwhile, due to the aggravation of greenhouse effect in recent years, people pay more attention to the reduction of carbon dioxide emission in the atmosphere by a carbon fixation method, however, the purposes of carbon fixation and hardness removal by using one device are rarely reported.

Chinese patent CN103880215A discloses an integrated water purification device for removing hardness of groundwater, which achieves the purpose of removing hardness by adding sodium hydroxide, and has the advantages of rapid process, simple operation, small occupied area, etc. Chinese patent CN212581647U discloses a calcium hard water softening system, which has high treatment efficiency, stable water outlet effect and no generation of any by-products by adding sodium hydroxide and sodium carbonate as hardness removing agents, but this increases the cost of the hardness removing agents to a certain extent and also does not have the purpose of carbon fixation.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides a device for fixing carbon and removing hardness, which comprises a water pool and a carbon dioxide gas cabin, wherein the carbon dioxide gas cabin is positioned above the water pool and communicated with the water pool, a Venturi ejector is arranged in the carbon dioxide gas cabin, and the carbon dioxide gas cabin is connected with a carbon dioxide gas inlet channel.

In some embodiments, the venturi ejector is located above the liquid level of the pool of water.

In some embodiments, one end of the venturi ejector is connected to an external centrifugal pump through a pipe.

In some embodiments, the water inlet of the centrifugal pump is connected to a sump.

In some embodiments, the venturi ejector has another end that connects the conduit outlet to the bottom of the basin.

In some embodiments, the one side is provided with a liquid level meter, and the liquid level meter is higher than the liquid level of the pool.

In some embodiments, a water replenishing port is arranged below the liquid level meter.

In some embodiments, a pH meter is disposed below the water replenishing port.

In some embodiments, a calcium adding device is arranged between the Venturi ejector and the centrifugal pump, and the calcium adding device is connected with a pipeline.

When the device is used for carbon fixation, the calcium concentration in the water tank can be supplemented by the additional calcium adding device, so that an excellent carbon fixation effect is realized.

In some embodiments, the bottom of the basin is provided with a solids discharge channel.

In some embodiments, the CO₂CO which may be derived from carbon capture₂Or CO obtained by separating air with other gas separation membrane₂。

Has the beneficial effects that:

(1) the utility model leads gas-phase CO to be converted into gas-phase CO under certain pressure₂The water is dissolved in water to form carbonate ions or bicarbonate ions, the carbonate ions or bicarbonate ions react with calcium and magnesium ions in the water to form precipitates, and the purposes of carbon fixation and hardness removal are achieved, so that on one hand, the waste water can be recycled, resources are saved, on the other hand, the concentration of carbon dioxide in the atmosphere can be reduced, and dual functions are realized;

(2) the utility model does not need to add a hardness removing agent, has lower cost, does not generate byproducts, and has simple device structure, convenient operation, environmental protection and safety.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

in the figure, 1, a water pool; 2. a carbon dioxide gas cabin; 3. a venturi ejector; 4. a pipeline; 5. a carbon dioxide gas inlet passage; 6. a centrifugal pump; 7. a liquid level meter; 8. water replenishing; 9. a pH detector; 10. a solids discharge passage; 11. a calcium adding device.

Detailed Description

Example 1

Referring to fig. 1, the device for carbon sequestration and hardness removal comprises a water tank 1 and a carbon dioxide gas chamber 2, wherein the carbon dioxide gas chamber 2 is positioned above the water tank 1 and communicated with the water tank 1, a venturi ejector 3 is arranged inside the carbon dioxide gas chamber 2, and the carbon dioxide gas chamber 2 is connected with a carbon dioxide gas inlet channel 5.

The venturi ejector 3 is positioned above the liquid level of the water tank 1.

One end of the Venturi ejector 3 is connected with an external centrifugal pump 6 through a pipeline 4.

The water inlet of the centrifugal pump 6 is connected with the water pool 1.

The other end of the venturi ejector 3 is connected with the outlet of the pipeline 4 to the bottom of the water pool 1.

One side of pond 1 is equipped with level gauge 7, level gauge 7 is higher than the liquid level in pond 1.

And a water replenishing port 8 is arranged below the liquid level meter 7.

And a pH detector 9 is arranged below the water replenishing port 8.

And a calcium adding device 11 is arranged between the Venturi ejector 3 and the centrifugal pump 6, and the calcium adding device 11 is connected with the pipeline 4.

The bottom of the basin 1 is provided with a solids discharge channel 10.

The working principle is as follows: the utility model leads gas-phase CO to be converted into gas-phase CO through a certain pressure₂Form carbonate or bicarbonate ions in water, react with calcium and magnesium ions in water to form precipitate, and simultaneously achieve the purposes of carbon fixation and hardness removal. Specifically, a Venturi ejector is arranged in a carbon dioxide chamber, one end of the ejector is connected with an external centrifugal pump through a pipeline, and a water inlet of the centrifugal pump is connected with a water pool; the other end of the Venturi ejector is connected with the outlet of the pipeline to the bottom of the water tank body, the centrifugal pump pumps water in the water tank into the ejector, and the Venturi ejector sucks gas-phase carbon dioxide into the ejector to be mixed with the water under pressure to form ionic carbon dioxide to be released at the bottom of the pool. Carbon dioxide in ionic state and calcium ion in waterOr magnesium ions react to form precipitates which can be recovered, and the dual functions of carbon fixation and hardness removal are realized simultaneously.

Claims

1. The utility model provides a device of solid carbon and hardness that removes, its characterized in that includes pond (1) and carbon dioxide gas cabin (2), carbon dioxide gas cabin (2) are located pond (1) top and are linked together with pond (1), carbon dioxide gas cabin (2) inside is equipped with venturi ejector (3), carbon dioxide gas cabin (2) link to each other with carbon dioxide inlet channel (5).

2. The device for fixing carbon and removing hardness as claimed in claim 1, wherein the venturi ejector (3) is located above the liquid level of the water pool (1).

3. A carbon sequestration and hardness removal apparatus according to claim 1, wherein one end of the venturi ejector (3) is connected to an external centrifugal pump (6) via a pipe (4).

4. A carbon sequestration and hardness removal apparatus according to claim 3, wherein the inlet of said centrifugal pump (6) is connected to the basin (1).

5. A carbon sequestration and hardness removal device according to claim 3, wherein the venturi ejector (3) has its other end connected to the outlet of the pipe (4) to the bottom of the basin (1).

6. A carbon sequestration and hardness removal apparatus according to any one of claims 1 to 5, wherein a level gauge (7) is provided on one side of the basin (1), said level gauge (7) being above the level of the basin (1).

7. A carbon sequestration and hardness removal apparatus according to claim 6, wherein a water replenishing port (8) is provided below the liquid level gauge (7).

8. The carbon sequestration and hardness removal device according to claim 7, wherein a pH detector (9) is arranged below the water replenishing port (8).

9. The device for fixing carbon and removing hardness as claimed in claim 1, wherein a calcium adding device (11) is arranged between the Venturi ejector (3) and the centrifugal pump (6), and the calcium adding device (11) is connected with the pipeline (4).

10. A carbon sequestration and hardness removal apparatus according to claim 1, wherein the bottom of the basin (1) is provided with a solids discharge channel (10).