Acid-making feeding device capable of improving solubility of carbon dioxide

Abstract

The utility model relates to the technical field of water treatment equipment, and discloses an acid-making dosing device capable of improving the solubility of carbon dioxide, which comprises an air inlet pipeline, a first flow meter, a pressure reducing valve, a first flow regulating valve and a second flow meter are sequentially arranged on the air inlet pipeline; a third flow meter is arranged on the water inlet pipeline; one end of the gas-liquid mixer is communicated with the output end of the water inlet pipeline, the other end of the gas-liquid mixer is communicated with a liquid outlet pipe, and the output end of the gas inlet pipeline is communicated with the upper end of the gas-liquid mixer. Through the arrangement of the gas-liquid mixer and the pressure release valve, during use, high-pressure gas carbon dioxide can be directly introduced into the device and is fully mixed with tap water to prepare a carbonic acid solution, and then the carbonic acid solution is fed into a raw water pipeline; compared with a method for preparing acid by directly introducing gas into a raw water pipeline and pre-dissolving the gas in a gas-liquid mixer, the utilization rate of carbon dioxide is improved, and the cost of adding medicaments is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to an acid-making dosing device capable of improving the solubility of carbon dioxide. Background Art

[0002] The pH value of raw water (untreated water) in water plants is often high. High pH will lead to increased dosage of flocculants and coagulants in subsequent water treatment, high residual aluminum in effluent, increased sludge treatment volume, increased economic costs for water plant production and difficult to control water quality.

[0003] In the past, strong acids (such as hydrochloric acid and sulfuric acid) were often used to lower the pH value. Now, with the development of technology, carbon dioxide is used to lower the pH value. Its solubility in water is very low, but carbon dioxide is difficult to dissolve in water and its solubility in water is very low. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes an acid-making dosing device which can improve the solubility of carbon dioxide.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An acid-making dosing device capable of improving the solubility of carbon dioxide comprises:

[0007] An air intake pipeline, wherein a first flow meter, a pressure reducing valve, a first flow regulating valve, and a second flow meter are sequentially arranged on the air intake pipeline;

[0008] A water inlet pipeline, wherein a third flow meter is provided on the water inlet pipeline;

[0009] The gas-liquid mixer has one end connected to the output end of the water inlet pipeline and the other end connected to a liquid outlet pipe. The output end of the air inlet pipeline is connected to the upper end of the gas-liquid mixer.

[0010] Preferably, pressure sensors installed on the air intake pipeline are provided on both sides of the pressure reducing valve, and a pressure gauge is provided between the two pressure sensors. The pressure gauge is installed on the air intake pipeline and is located at the output end of the pressure reducing valve.

[0011] Preferably, a pressure relief safety valve is connected between the pressure sensor at the output end of the pressure reducing valve and the second flow meter through a pipeline.

[0012] Preferably, the first flow regulating valve is connected to the air intake pipeline through pipelines on both sides, and a normally closed manual flow regulating valve is provided on the air intake pipeline and is located between the pipelines on both sides of the first flow regulating valve.

[0013] Preferably, the liquid outlet pipe is provided with a second pressure gauge, an observation device and a pH detector.

[0014] Preferably, a first manual valve installed on the air intake pipeline is provided at the input end of the pressure reducing valve, and second manual valves are installed on the pipelines on both sides of the first flow regulating valve.

[0015] Preferably, the output end of the air intake pipeline is connected to the upper end of the gas-liquid mixer through a liquid check valve.

[0016] Preferably, the observation device is a transparent glass pipe connected to the upper end of the liquid outlet pipe through a one-way valve, a pull rod is movably provided through the top of the transparent glass pipe, a piston is installed at one end of the pull rod located on the transparent glass pipe, the piston is adapted to the inner cavity of the transparent glass pipe, and one side of the transparent glass pipe is connected to an exhaust pipe through a one-way valve.

[0017] Preferably, the first flow meter is an electronic float flow meter, the second flow meter is a glass rotor flow meter, and the third flow meter is an electromagnetic flow meter.

[0018] Preferably, it also includes a mounting plate, and the air inlet pipeline and the water inlet pipeline are detachably mounted on the mounting plate through clamps, and an electric control box is also installed on the surface of the mounting plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model is provided with a gas-liquid mixer and a pressure relief valve, so that when in use, high-pressure gas carbon dioxide can be directly introduced into the device, fully mixed with tap water to form a carbonated solution, and then added to the raw water pipeline. Compared with the method of directly introducing gas into the raw water pipeline and pre-dissolving it in the gas-liquid mixer to produce acid, the utilization rate of carbon dioxide is improved, and the cost of adding the agent is greatly saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model provides an acid-making dosing device capable of improving the solubility of carbon dioxide;

[0022] Figure 2 The utility model proposes an acid-making dosing device capable of improving the solubility of carbon dioxide. Figure 1 A is an enlarged schematic diagram.

[0023] In the figure: 1. air intake pipeline; 2. first flow meter; 3. pressure reducing valve; 4. first flow regulating valve; 5. second flow meter; 6. water inlet pipeline; 7. third flow meter; 8. gas-liquid mixer; 9. liquid outlet pipe; 10. pressure sensor; 11. pressure gauge; 12. pressure relief safety valve; 13. normally closed manual flow regulating valve; 14. second pressure gauge; 15. PH detector; 16. first manual valve; 17. second manual valve; 18. liquid check valve; 19. transparent glass pipe; 20. pull rod; 21. piston; 22. drain pipe; 23. one-way valve; 24. electric control box; 25. mounting plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1 and Figure 2 , an acid-making dosing device capable of increasing the solubility of carbon dioxide, comprising:

[0026] An air intake pipeline 1, on which a first flow meter 2, a pressure reducing valve 3, a first flow regulating valve 4, and a second flow meter 5 are sequentially arranged;

[0027] A water inlet pipeline 6, wherein a third flow meter 7 is provided on the water inlet pipeline 6;

[0028] The gas-liquid mixer 8 is a stainless steel static mixer, one end of which is connected to the output end of the water inlet pipeline 6 and the other end is connected to the liquid outlet pipe 9. The output end of the air inlet pipeline 1 is connected to the upper end of the gas-liquid mixer 8.

[0029] When the device is in use, high-pressure gas carbon dioxide is directly introduced into the air inlet pipe of the device, passes through the first flow meter 2, the pressure reducing valve 3, the first flow regulating valve 4, and the second flow meter 5 in sequence, and is fully mixed with the tap water introduced into the water inlet pipe in the gas-liquid mixer 8 to make a carbonate solution, which is then added to the raw water pipe. Compared with the method of directly introducing the gas into the raw water pipe and pre-dissolving it in the gas-liquid mixer 8 to produce acid, the utilization rate of carbon dioxide is improved, and the cost of adding the agent is greatly saved.

[0030] In this embodiment, pressure sensors 10 installed on the air intake pipeline 1 are provided on both sides of the pressure reducing valve 3, and a pressure gauge 11 is provided between the two pressure sensors 10. The pressure gauge 11 is installed on the air intake pipeline 1 and is located at the output end of the pressure reducing valve 3. The two pressure sensors 10 are respectively used to monitor the pressure of the gas before and after passing through the pressure reducing valve 3 to determine whether the air pressure in the pipeline is normal, and the pressure gauge 11 is used to display the detection reading.

[0031] In this embodiment, a pressure relief safety valve 12 is connected between the pressure sensor 10 at the output end of the pressure reducing valve 3 and the second flow meter 5 through a pipeline. When the gas pressure in the air intake pipe exceeds the maximum pressure allowed by the design, the pressure relief safety valve 12 automatically opens to release excess gas, thereby avoiding damage to the equipment due to overpressure.

[0032] In this embodiment, the first flow regulating valve 4 is connected to the air intake pipeline 1 through pipelines on both sides, and a normally closed manual flow regulating valve 13 is provided on the air intake pipeline 1 and is located between the pipelines on both sides of the first flow regulating valve 4. The manual flow regulating valve can serve as a backup control means for the first flow regulating valve 4, and the gas flow can still be manually adjusted when the first flow regulating valve 4 fails or is under maintenance.

[0033] In this embodiment, the liquid outlet pipe 9 is provided with a second pressure gauge 14, an observation device and a pH detector 15. The second pressure gauge 14 can detect the pressure of the mixed liquid, the pH detector 15 can monitor the pH value after the mixing reaction in real time, so as to feedback and adjust the carbon dioxide addition, and the observation device can observe the gas-liquid mixing state with the naked eye.

[0034] In this embodiment, a first manual valve 16 installed on the air intake pipe 1 is provided at the input end of the pressure reducing valve 3. The first manual valve 16 can further adjust the gas flow rate on the basis of the pressure reducing valve 3, and can quickly cut off the gas supply in an emergency or maintenance, thereby improving the safety of the device. Second manual valves 17 are installed on the pipelines on both sides of the first flow regulating valve 4. The second manual valve 17 can cut off the channel when the first flow regulating valve 4 is abnormal, and use the normally closed manual flow regulating valve 13 to adjust the flow rate.

[0035] In this embodiment, the output end of the air intake pipeline 1 is connected to the upper end of the gas-liquid mixer 8 through a liquid check valve 18 to prevent the liquid from flowing back into the air intake pipeline.

[0036] In this embodiment, the observation device is a transparent glass pipe 19 connected to the upper end of the liquid outlet pipe 9 through a one-way valve 23. A pull rod 20 is movably provided on the top of the transparent glass pipe 19. The pull rod 20 is located at one end of the transparent glass pipe 19 and is equipped with a piston 21. The piston 21 is adapted to the inner cavity of the transparent glass pipe 19. One side of the transparent glass pipe 19 is connected to an emptying pipe 22 through a one-way valve 23. The piston 21 can be pulled by the pull rod 20 to extract a portion of the mixed gas from the liquid outlet pipe 9 to facilitate observation by the staff, thereby facilitating adjustment of the amount of carbon dioxide or liquid added. After inspection, the liquid can be discharged from the emptying pipe 22 by pushing the pull rod 20.

[0037] In this embodiment, the first flowmeter 2 is an electronic float flowmeter, the second flowmeter 5 is a glass rotor flowmeter, and the third flowmeter 7 is an electromagnetic flowmeter.

[0038] In this embodiment, a mounting plate 25 is also included, and the air inlet pipe 1 and the water inlet pipe 6 are detachably mounted on the mounting plate 25 through clamps. An electric control box 24 is also installed on the surface of the mounting plate 25, and the electric control box 24 is used to control the electrical equipment of the device.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An acid-making dosing device capable of improving the solubility of carbon dioxide, characterized in that: include: An air intake pipeline, wherein a first flow meter, a pressure reducing valve, a first flow regulating valve, and a second flow meter are sequentially arranged on the air intake pipeline; A water inlet pipeline, wherein a third flow meter is provided on the water inlet pipeline; The gas-liquid mixer has one end connected to the output end of the water inlet pipeline and the other end connected to a liquid outlet pipe. The output end of the air inlet pipeline is connected to the upper end of the gas-liquid mixer.

2. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 1, characterized in that: Pressure sensors installed on the air intake pipeline are arranged on both sides of the pressure reducing valve, and a pressure gauge is arranged between the two pressure sensors. The pressure gauge is installed on the air intake pipeline and is located at the output end of the pressure reducing valve.

3. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 2, characterized in that: A pressure relief safety valve is connected between the pressure sensor at the output end of the pressure reducing valve and the second flow meter through a pipeline.

4. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 2, characterized in that: The first flow regulating valve is connected to the air intake pipeline through pipelines on both sides, and a normally closed manual flow regulating valve is arranged on the air intake pipeline and is located between the pipelines on both sides of the first flow regulating valve.

5. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 1, characterized in that: The liquid outlet pipe is provided with a second pressure gauge, an observation device and a pH detector.

6. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 1, characterized in that: A first manual valve installed on the air intake pipeline is disposed at the input end of the pressure reducing valve, and second manual valves are installed on the pipelines on both sides of the first flow regulating valve.

7. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 1, characterized in that: The output end of the air intake pipeline is communicated with the upper end of the gas-liquid mixer through a liquid check valve.

8. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 5, characterized in that: The observation device is a transparent glass pipe connected to the upper end of the liquid outlet pipe through a one-way valve. A pull rod is movably provided through the top of the transparent glass pipe. A piston is installed at one end of the pull rod located on the transparent glass pipe. The piston is adapted to the inner cavity of the transparent glass pipe. One side of the transparent glass pipe is connected to an exhaust pipe through a one-way valve.

9. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 1, characterized in that: The first flow meter is an electronic float flow meter, the second flow meter is a glass rotor flow meter, and the third flow meter is an electromagnetic flow meter.

10. The acid-making dosing device capable of improving the solubility of carbon dioxide according to claim 1, characterized in that: It also includes a mounting plate, and the air inlet pipeline and the water inlet pipeline are detachably mounted on the mounting plate through clamps, and an electric control box is also installed on the surface of the mounting plate.

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