Dispensing device for power plant

Abstract

The utility model relates to a dispensing device for a power plant. The dispensing device comprises a dispensing container, a medicament supply mechanism and a water supply mechanism, the medicament supply mechanism is used for supplying an ammonia-containing stock solution, and the liquid outlet end of the medicament supply mechanism penetrates into the dispensing container; the water supply mechanism comprises a water pump, a water delivery pipe and an atomizer, an inlet of the water pump is used for being connected with a water source, one end of the water delivery pipe is connected with an outlet of the water pump, the other end of the water delivery pipe is connected with the atomizer, and the atomizer is located in the medicine dispensing container and is opposite to the liquid outlet end of the medicine supply mechanism. According to the dosing device, the ammonia-containing stock solution does not need to be manually added, so that the influence of ammonia gas on workers can be avoided, the safety is ensured, the atomizer can atomize water conveyed by the water pump, the water can be in full contact with the ammonia-containing stock solution added into the dosing container, the mixing uniformity degree is high, and the pH value of fed water is stably controlled.

Description

Technical Field

[0001] The present disclosure relates to a water chemical treatment technology for a power plant, and in particular, to a chemical dispensing device for a power plant. Background Art

[0002] In order to suppress the flow-accelerated corrosion of the generator set feed water pipeline, it is usually necessary to use oxidative full volatilization treatment on the boiler feed water, that is, adding enough ammonia to the feed water and controlling the pH value of the feed water to 9.2~9.6, thereby slowing down the corrosion of the thermal system.

[0003] Most of the dispensing devices in the related art use manual methods to inject high-concentration ammonia stock solution into the dispensing box. Due to the large size of the dispensing box, the prepared liquid medicine often cannot be quickly mixed evenly, resulting in inconsistent dispensing concentration and unstable water pH control, affecting the effect. In addition, ammonia is volatile, corrosive and toxic, and manual operation is unsafe. Utility Model Content

[0004] The purpose of the present disclosure is to provide a drug dispensing device for a power plant to solve the above-mentioned problems in the related art.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a drug dispensing device for a power plant, comprising a drug dispensing container, a drug supply mechanism, and a water supply mechanism;

[0006] The medicine supply mechanism is used to supply ammonia-containing stock solution, and the liquid outlet end of the medicine supply mechanism penetrates into the medicine dispensing container to transport the ammonia-containing stock solution into the medicine dispensing container;

[0007] The water supply mechanism includes a water pump, a water delivery pipe and an atomizer. The inlet of the water pump is used to be connected to a water source, one end of the water delivery pipe is connected to the outlet of the water pump, and the other end of the water delivery pipe is connected to the atomizer. The atomizer is located in the medicine dispensing container and is arranged opposite to the liquid outlet end of the medicine supply mechanism.

[0008] Optionally, the liquid outlet ends of the nebulizer and the medicine supply mechanism are both above the liquid level of the solution in the medicine dispensing container, the nebulizer is close to the axis of the medicine dispensing container extending in the vertical direction, and the liquid outlet end of the medicine supply mechanism does not overlap with the projection of the nebulizer in the vertical direction.

[0009] Optionally, the liquid outlet end of the medicine supply mechanism penetrates into the medicine dispensing container obliquely downward;

[0010] There is an angle between the liquid outlet of the medicine supply mechanism and the vertical direction, and the angle is 45°, so that the ammonia-containing raw liquid sprayed from the liquid outlet of the medicine supply mechanism is in a vortex shape in the medicine dispensing container.

[0011] Optionally, the atomizer has a plurality of atomizing nozzles, the plurality of atomizing nozzles are arranged obliquely downward, the spraying directions of the plurality of atomizing nozzles are arranged at an angle to the vertical direction, and the spraying directions of the plurality of atomizing nozzles are different.

[0012] Optionally, the drug supply mechanism includes a drug injection pipe, a drug delivery pipe, a vacuum ejector and a drug stock liquid barrel, one end of the drug injection pipe is set as the liquid outlet end of the drug supply mechanism and penetrates obliquely downward into the drug dispensing container, the other end of the drug injection pipe is connected to one end of the drug delivery pipe, the other end of the drug delivery pipe is connected to the outlet of the vacuum ejector, the inlet of the vacuum ejector is connected to the drug stock liquid barrel, and the drug stock liquid barrel is used to store ammonia-containing stock liquid.

[0013] Optionally, the dispensing device also includes a circulation pump, a first filter, a first circulation pipe, a second circulation pipe, a first switch valve and a second switch valve, one end of the first circulation pipe is connected to the bottom of the dispensing container, the other end of the first circulation pipe is connected to one end of the first filter, the other end of the first filter is connected to the inlet of the circulation pump, the outlet of the circulation pump is connected to one end of the second circulation pipe, the other end of the second circulation pipe is connected to the inlet of the vacuum ejector, the first switch valve is connected to the first circulation pipe, the first switch valve can turn on or off the first circulation pipe, the second switch valve is connected to the second circulation pipe, and the second switch valve can turn on or off the second circulation pipe.

[0014] Optionally, the number of the atomizers is multiple and they are stacked and spaced apart in an up-and-down direction;

[0015] The water supply mechanism also includes a second filter and a third switch valve. The water delivery pipe includes a first pipe section and a second pipe section. One end of the first pipe section is connected to the outlet of the water pump, and the other end of the first pipe section is connected to one end of the second filter. One end of the second pipe section is connected to the other end of the second filter. The other end of the second pipe section penetrates into the medicine dispensing container and is connected to the nebulizer. The third switch valve is connected to the first pipe section, and the third switch valve can turn on or off the first pipe section.

[0016] Optionally, the dispensing device further includes a drain pipe, a fourth switch valve, a pressure relief pipe and a pressure relief valve, wherein the drain pipe is connected to the bottom of the dispensing container, the fourth switch valve is connected to the drain pipe, and the fourth switch valve can open or close the drain pipe;

[0017] One end of the pressure relief pipe is connected to the top of the medicine dispensing container, and the other end of the pressure relief pipe is connected to the sewage pipe. The connection position of the pressure relief pipe and the sewage pipe is farther away from the end of the sewage pipe connected to the medicine dispensing container than the fourth switch valve.

[0018] Optionally, the dispensing device further includes a liquid level measuring mechanism, which is located outside the dispensing container, one end of the liquid level measuring mechanism is connected to the bottom side wall of the dispensing container, and the other end of the liquid level measuring mechanism is connected to the top side wall of the dispensing container.

[0019] Optionally, the dispensing device also includes a dosing pump, a dosing tube and a fifth switch valve, one end of the dosing tube is connected to the outlet of the dosing pump, the other end of the dosing tube is connected to the bottom of the dispensing container, and the fifth switch valve is connected to the dosing tube, and the fifth switch valve can turn on or off the dosing tube.

[0020] The above technical solution realizes automatic supply of ammonia-containing stock solution through the drug supply mechanism, and does not require manual addition of ammonia-containing stock solution, thereby avoiding the impact of ammonia gas on workers, ensuring safety, and greatly reducing the labor intensity of manual labor. In addition, the water supply mechanism can realize automatic addition of water, and no manual operation is required, making drug dispensing very convenient. The atomizer is set up, and the atomizer can atomize the water delivered by the water pump. The atomized water is diffused in the drug dispensing container and can fully contact with the ammonia-containing stock solution added to the drug dispensing container, achieving rapid and uniform mixing. The high degree of mixing uniformity ensures the consistency of the drug dispensing concentration and makes the pH value of the water supply stable.

[0021] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 It is a schematic structural diagram of a medication dispensing device in one embodiment of the present disclosure.

[0024] Description of Reference Numerals

[0025] 1. Dispensing container;

[0026] 2. Drug supply mechanism, 21. Drug injection pipe, 22. Drug delivery pipe, 23. Vacuum ejector, 24. Drug stock solution barrel, 25. Sixth switch valve, 26. Drug suction pipe;

[0027] 3. Water supply mechanism, 31. Water pump, 32. Water delivery pipe, 33. Atomizer, 34. Atomizing nozzle, 35. Second filter, 36. Third switch valve;

[0028] 41. Circulation pump, 42. First filter, 43. First circulation pipe, 44. Second circulation pipe, 45. First on-off valve, 46. Second on-off valve;

[0029] 51. Sewage pipe, 52. Fourth switch valve, 53. Pressure relief pipe, 54. Pressure relief valve, 55. Pressure sensor;

[0030] 6. Liquid level measurement mechanism;

[0031] 71. Dosing pump, 72. Dosing pipe, 73. Fifth switch valve;

[0032] 8. Conductivity meter. DETAILED DESCRIPTION

[0033] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0034] In this disclosure, unless otherwise indicated, directional terms such as "upper" and "lower" are generally defined in relation to the drawing planes of the accompanying drawings, and "inner" and "outer" refer to the inside and outside of the relevant components. Furthermore, the terms "first" and "second" are used solely for purposes of distinction and are not to be construed as indicating or implying relative importance.

[0035] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may be directly connected or indirectly connected through an intermediate medium, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0036] like Figure 1 As shown, the present disclosure provides a drug dispensing device for a power plant, comprising a drug dispensing container 1 , a drug supply mechanism 2 and a water supply mechanism 3 .

[0037] The medicine supply mechanism 2 is used to supply ammonia-containing raw liquid. The liquid outlet end of the medicine supply mechanism 2 penetrates into the medicine dispensing container 1 to transport the ammonia-containing raw liquid into the medicine dispensing container 1 .

[0038] The water supply mechanism 3 includes a water pump 31, a water delivery pipe 32 and an atomizer 33. The inlet of the water pump 31 is used to be connected to a water source, one end of the water delivery pipe 32 is connected to the outlet of the water pump 31, and the other end of the water delivery pipe 32 is connected to the atomizer 33. The atomizer 33 is located in the medication container 1, and the atomizer 33 is arranged opposite to the liquid outlet end of the medication supply mechanism 2.

[0039] The dispensing container 1 is a closed container whose internal chamber is used for dispensing. The drug supply mechanism 2 delivers ammonia-containing stock solution to the dispensing container 1. The water pump 31 of the water supply mechanism 3 then draws water from the water source, generating a conveying force. The water is then delivered to the dispensing container 1 via the water delivery pipe 32 and atomizer 33, allowing the ammonia-containing stock solution to mix with water in the dispensing container 1. The water supplied by the water supply mechanism 3 can be demineralized water. The ammonia-containing stock solution can be aqueous ammonia or liquid ammonia.

[0040] In the above technical solution, the automatic supply of ammonia-containing stock solution is achieved through the drug supply mechanism 2, and there is no need for manual addition of ammonia-containing stock solution, thereby avoiding the impact of ammonia gas on workers, ensuring safety, and greatly reducing the labor intensity of manual labor. In addition, the water supply mechanism 3 can automatically add water, and no manual operation is required, making the dispensing of medicines very convenient. The atomizer 33 is provided, and the atomizer 33 can atomize the water delivered by the water pump 31. The atomized water is diffused in the dispensing container 1 and can fully contact with the ammonia-containing stock solution added to the dispensing container 1, achieving rapid and uniform mixing. The high degree of mixing uniformity ensures the consistency of the dispensing concentration and makes the pH value of the water supply stable.

[0041] Optionally, in one embodiment of the present disclosure, the dispensing device further includes a stirring mechanism and a motor. The motor is connected to the outer wall of the dispensing container 1, and the stirring mechanism is arranged in the dispensing container 1. The stirring mechanism is transmission-connected to the output end of the motor. The motor drives the stirring mechanism to rotate to achieve stirring, which can further improve the degree of mixing of the ammonia-containing stock solution and water.

[0042] The stirring mechanism includes a stirring rod and a paddle, the paddle is connected to the stirring rod, and one end of the stirring rod extends out of the dispensing container 1 and is connected to the output end of the motor. In some examples, the motor is arranged on the top of the dispensing container 1, and the stirring rod is arranged vertically.

[0043] Optionally, in one embodiment of the present disclosure, the liquid outlet ends of the nebulizer 33 and the medicine supply mechanism 2 are both above the liquid level of the solution in the medicine dispensing container 1, the nebulizer 33 is close to the axis extending in the vertical direction of the medicine dispensing container 1, and the liquid outlet end of the medicine supply mechanism 2 does not overlap with the projection of the nebulizer 33 in the vertical direction.

[0044] Among them, the liquid outlet ends of the atomizer 33 and the drug supply mechanism 2 are both above the liquid level of the solution in the dispensing container 1, so that the newly added ammonia-containing stock solution and the atomized water can be pre-mixed in the upper position inside the dispensing container 1, and then mixed again in the solution falling below, achieving double mixing, improving the mixing effect and efficiency. At the same time, the atomizer 33 is placed close to the axis of the dispensing container 1, so that the atomized water can be evenly distributed in the dispensing container 1, which is conducive to uniform contact with the added ammonia-containing stock solution and improves the mixing effect. It should be noted that the atomizer 33 will not affect the rotation of the stirring mechanism. At the same time, the liquid outlet end of the drug supply mechanism 2 and the projection of the atomizer 33 in the vertical direction do not overlap, which can avoid mutual interference and obstruction between the two and avoid affecting the addition of the ammonia-containing stock solution.

[0045] The medicine dispensing container 1 is provided with a first hole, through which the liquid outlet of the medicine supply mechanism 2 penetrates into the medicine dispensing container 1. In some examples, the liquid outlet of the medicine supply mechanism 2 is above the atomizer 33. In other examples, the liquid outlet of the medicine supply mechanism 2 may be below the atomizer 33.

[0046] Optionally, in one embodiment of the present disclosure, the liquid outlet of the drug supply mechanism 2 penetrates obliquely downward into the drug dispensing container 1. By such an arrangement, the ammonia-containing stock solution added by the liquid outlet of the drug supply mechanism 2 can be sprayed into the drug dispensing container 1 at a certain angle, which can facilitate contact with the atomized water.

[0047] In some examples, the liquid outlet of the drug supply mechanism 2 is angled with the vertical direction at 45°, so that the ammonia-containing stock solution ejected from the liquid outlet of the drug supply mechanism 2 forms a vortex in the dispensing container 1. This arrangement increases the contact time between the ammonia-containing stock solution ejected from the liquid outlet of the drug supply mechanism 2 and the atomized water, while producing a certain mixing effect and improving the overall mixing uniformity. Optionally, in other examples, the angle can be other angles, such as 30°, 60°, etc.

[0048] Optionally, in one embodiment of the present disclosure, the atomizer 33 includes multiple atomizing nozzles 34, which are arranged obliquely downward. The spraying directions of the multiple atomizing nozzles 34 are arranged at an angle to the vertical direction, and the multiple atomizing nozzles 34 have different spraying directions. The multiple atomizing nozzles 34 can increase the atomization area and the uniformity of the atomization. At the same time, the multiple atomizing nozzles 34 are arranged at an angle, which can spray water in all directions, so that the atomized water can be evenly diffused in the dispensing container 1, improving uniformity, thereby improving the contact effect with the ammonia-containing stock solution and improving the mixing effect.

[0049] It is understandable that the multiple atomizing nozzles 34 can be deflected in different directions, and can be at a certain angle to the vertical direction. In some examples, the angle can be 60°. Of course, the angle can also be 45°, etc.

[0050] Optionally, in another embodiment of the present disclosure, the atomizer 33 may have a large atomizing nozzle 34, and the atomizing nozzle 34 may spray atomized water in all directions.

[0051] Optionally, in one embodiment of the present disclosure, the drug supply mechanism 2 includes a drug injection pipe 21, a drug delivery pipe 22, a vacuum ejector 23 and a drug concentrate barrel 24, one end of the drug injection pipe 21 is set as the liquid outlet end of the drug supply mechanism 2 and penetrates obliquely downward into the dispensing container 1, the other end of the drug injection pipe 21 is connected to one end of the drug delivery pipe 22, the other end of the drug delivery pipe 22 is connected to the outlet of the vacuum ejector 23, the inlet of the vacuum ejector 23 is connected to the drug concentrate barrel 24, and the drug concentrate barrel 24 is used to store ammonia-containing concentrate.

[0052] Among them, the drug injection pipe 21 is connected to the drug dispensing container 1, and the drug injection pipe 21 passes through the first hole on the drug dispensing container 1 and extends into the drug dispensing container 1 to realize the addition of ammonia-containing stock solution, and the drug injection pipe 21 can be conveniently set to an inclined direction so that the ammonia-containing stock solution is injected obliquely to produce a vortex effect.

[0053] Among them, the vacuum ejector 23 can suck the ammonia-containing stock solution from the medicine stock solution barrel 24, and the vacuum ejector 23 can generate a negative pressure effect, so that the ammonia-containing stock solution in the medicine stock solution barrel 24 is sucked in by the siphon effect, and then sprayed into the medicine dispensing container 1 through the medicine delivery pipe 22 and the medicine injection pipe 21.

[0054] In some examples, a drug suction pipe 26 is provided between the vacuum ejector 23 and the drug stock solution barrel 24. This pipe delivers ammonia-containing stock solution from the drug stock solution barrel 24 to the vacuum ejector 23. A sixth on-off valve 25 can be provided on the drug suction pipe 26 to open or close the pipe. The drug injection pipe 21, drug delivery pipe 22, and drug suction pipe 26 can be connected using pressure-resistant and corrosion-resistant pipes. The drug suction pipe 26 can be a rigid pipe to avoid deformation under negative pressure, which can cause poor liquid flow and enhance ease of operation. The sixth on-off valve 25 can also be made of pressure-resistant and corrosion-resistant materials.

[0055] Optionally, in another embodiment of the present disclosure, the drug supply mechanism 2 includes a drug concentrate barrel 24, a delivery pump and a drug delivery pipe 22, one end of the drug delivery pipe 22 extends into the dispensing container 1, the other end of the drug delivery pipe 22 is connected to the outlet of the delivery pump, and the inlet of the delivery pump is connected to the drug concentrate barrel 24, and the ammonia-containing concentrate is directly delivered by the delivery pump, which can be a magnetic pump.

[0056] Optionally, in one embodiment of the present disclosure, the dispensing device further includes a circulation pump 41, a first filter 42, a first circulation pipe 43, a second circulation pipe 44, a first switch valve 45 and a second switch valve 46, one end of the first circulation pipe 43 is connected to the bottom of the dispensing container 1, the other end of the first circulation pipe 43 is connected to one end of the first filter 42, the other end of the first filter 42 is connected to the inlet of the circulation pump 41, the outlet of the circulation pump 41 is connected to one end of the second circulation pipe 44, the other end of the second circulation pipe 44 is connected to the inlet of the vacuum ejector 23, the first switch valve 45 is connected to the first circulation pipe 43, the first switch valve 45 can turn on or off the first circulation pipe 43, the second switch valve 46 is connected to the second circulation pipe 44, the second switch valve 46 can turn on or off the second circulation pipe 44. By such an arrangement, the solution at the bottom of the dispensing container 1 can be sucked and transported to the inner top of the dispensing container 1 to achieve a circulation effect, further improving the mixing uniformity. At the same time, the circulated solution can be used as a power source for the ammonia-containing stock solution sucked by the vacuum ejector 23, so that the ammonia-containing stock solution is convenient for spraying into the dispensing container 1, and the circulating solution can be premixed with the ammonia-containing stock solution to achieve a dilution first, further improving the mixing uniformity.

[0057] It is understood that when the circulation pump 41 is pumping, the solution at the bottom of the dispensing container 1 flows through the first circulation pipe 43 to the first filter 42. After being filtered by the first filter 42, it flows into the circulation pump 41, and then is transported to the vacuum ejector 23 through the second circulation pipe 44, and is injected into the dispensing container 1 through the drug injection pipe 21. Among them, the first switch valve 45 and the second switch valve 46 can be turned on or off as needed. For example, when cleaning the first filter 42, the first switch valve 45 and the second switch valve 46 can be turned off and the first filter 42 can be removed. In some examples, the number of first switch valves 45 can be two, one can be a solenoid valve and the other can be a manual valve. The specific selection can be based on actual needs and is not limited here.

[0058] Optionally, in another embodiment of the present disclosure, the dispensing device further includes a circulation pump 41, a first filter 42, a first circulation pipe 43, a second circulation pipe 44, a first switch valve 45, and a second switch valve 46, one end of the first circulation pipe 43 is connected to the bottom of the dispensing container 1, the other end of the first circulation pipe 43 is connected to one end of the first filter 42, the other end of the first filter 42 is connected to the inlet of the circulation pump 41, the outlet of the circulation pump 41 is connected to one end of the second circulation pipe 44, the other end of the second circulation pipe 44 is connected to the top of the dispensing container 1, the first switch valve 45 is connected to the first circulation pipe 43, the first switch valve 45 can conduct or cut off the first circulation pipe 43, the second switch valve 46 is connected to the second circulation pipe 44, and the second switch valve 46 can conduct or cut off the second circulation pipe 44. Circulation is achieved independently without being connected to the medicine supply mechanism 2.

[0059] Optionally, in one embodiment of the present disclosure, there are multiple atomizers 33 and they are stacked and spaced apart in the vertical direction. By such an arrangement, the water atomization effect can be further improved, and the diffusion degree of the atomized water in the dispensing container 1 can be increased.

[0060] The water supply mechanism 3 also includes a second filter 35 and a third on-off valve 36. The water delivery pipe 32 includes a first pipe section and a second pipe section. One end of the first pipe section is connected to the outlet of the water pump 31, the other end of the first pipe section is connected to one end of the second filter 35, and one end of the second pipe section is connected to the other end of the second filter 35. The other end of the second pipe section passes through the dispensing container 1 and is connected to the atomizer 33. The third on-off valve 36 is connected to the first pipe section and can open or close the first pipe section. The second filter 35 is provided to filter the supplied water to prevent the entry of impurities. It should be noted that the second filter 35 is removable for cleaning.

[0061] Optionally, in one embodiment of the present disclosure, the dispensing device further comprises a drain pipe 51, a fourth on-off valve 52, a pressure relief pipe 53, and a pressure relief valve 54. The drain pipe 51 is connected to the bottom of the dispensing container 1, and the fourth on-off valve 52 is connected to the drain pipe 51. The fourth on-off valve 52 can open or close the drain pipe 51. The drain pipe 51 can be provided to discharge waste when cleaning the dispensing container 1. That is, when waste discharge is required, the fourth on-off valve 52 is opened, and the solution in the dispensing container 1 can be discharged from the drain pipe 51.

[0062] One end of the pressure relief pipe 53 is connected to the top of the dispensing container 1, and the other end is connected to the drain pipe 51. The connection between the pressure relief pipe 53 and the drain pipe 51 is farther from the end of the drain pipe 51 connected to the dispensing container 1 than the fourth on-off valve 52. The provision of the pressure relief pipe 53 allows for pressure relief within the dispensing container 1, preventing excessive pressure within the dispensing container 1. It will be appreciated that when the pressure in the dispensing container 1 reaches the pressure relief threshold of the pressure relief valve 54, the pressure relief valve 54 opens, allowing air to flow through the pressure relief pipe 53 and out of the drain pipe 51, bypassing the fourth on-off valve 52.

[0063] Optionally, in some examples, a pressure sensor 55 may be provided on the top of the medicine dispensing container 1 to detect the pressure within the medicine dispensing container 1 and to cooperate with the pressure relief valve 54 to implement manual pressure relief and other operations. Of course, a control system may also be connected, such as a controller, to which both the pressure sensor 55 and the pressure relief valve 54 are connected, and the controller may control the opening or closing of the pressure relief valve 54 based on the detection value of the pressure sensor 55.

[0064] Optionally, in one embodiment of the present disclosure, the dispensing device further comprises a liquid level measuring mechanism 6, which is located outside the dispensing container 1, with one end of the liquid level measuring mechanism 6 connected to the bottom side wall of the dispensing container 1, and the other end of the liquid level measuring mechanism 6 connected to the top side wall of the dispensing container 1. The liquid level measuring mechanism 6 can accurately detect the liquid level in the dispensing container 1.

[0065] In some examples, the liquid level measuring mechanism 6 may be an electronic liquid level measuring meter, both ends of which extend into the dispensing container 1 to detect a low liquid level threshold and a high liquid level threshold, respectively.

[0066] In other examples, the liquid level measuring mechanism 6 includes an observation tube, a first connecting tube and a second connecting tube. The observation tube is vertically arranged, and the upper and lower ends of the observation tube are respectively connected to one end of the first connecting tube and one end of the second connecting tube. The other end of the first connecting tube is connected to the bottom side wall of the dispensing container 1 and is connected to the interior of the dispensing container 1. The other end of the second connecting tube is connected to the top side wall of the dispensing container 1 and is connected to the interior of the dispensing container 1. The solution in the dispensing container 1 can enter the observation tube through the first connecting tube, and the liquid level height in the observation tube is the liquid level height in the dispensing container 1.

[0067] Optionally, in one embodiment of the present disclosure, the dispensing device further includes a dosing pump 71, a dosing tube 72, and a fifth switch valve 73. One end of the dosing tube 72 is connected to the outlet of the dosing pump 71, and the other end of the dosing tube 72 is connected to the bottom of the dispensing container 1. The fifth switch valve 73 is connected to the dosing tube 72 and can open or close the dosing tube 72. Other agents can be added through the dosing pump 71 and the dosing tube 72, and the specific addition can be based on actual needs.

[0068] Optionally, in one embodiment of the present disclosure, a conductivity meter 8 is further provided on the medicine dispensing container 1 .

[0069] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0071] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A dispensing device for a power plant, characterized in that: including a dispensing container, a medicine supply mechanism, and a water supply mechanism; The medicine supply mechanism is used to supply ammonia-containing stock solution, and the liquid outlet end of the medicine supply mechanism penetrates into the medicine dispensing container to transport the ammonia-containing stock solution into the medicine dispensing container; The water supply mechanism includes a water pump, a water delivery pipe and an atomizer. The inlet of the water pump is used to be connected to a water source, one end of the water delivery pipe is connected to the outlet of the water pump, and the other end of the water delivery pipe is connected to the atomizer. The atomizer is located in the medicine dispensing container and is arranged opposite to the liquid outlet end of the medicine supply mechanism.

2. The drug dispensing device for a power plant according to claim 1, characterized in that: The liquid outlet ends of the nebulizer and the medicine supply mechanism are both above the liquid level of the solution in the medicine dispensing container, the nebulizer is close to the axis of the medicine dispensing container extending in the vertical direction, and the liquid outlet end of the medicine supply mechanism does not overlap with the projection of the nebulizer in the vertical direction.

3. The drug dispensing device for a power plant according to claim 2, characterized in that: The liquid outlet end of the medicine supply mechanism penetrates into the medicine dispensing container obliquely downward; There is an angle between the liquid outlet of the medicine supply mechanism and the vertical direction, and the angle is 45°, so that the ammonia-containing raw liquid sprayed from the liquid outlet of the medicine supply mechanism is in a vortex shape in the medicine dispensing container.

4. The drug dispensing device for a power plant according to claim 2, characterized in that: The atomizer has a plurality of atomizing nozzles, the plurality of atomizing nozzles are arranged obliquely downward, the spraying directions of the plurality of atomizing nozzles are arranged at an angle to the vertical direction, and the spraying directions of the plurality of atomizing nozzles are different.

5. The drug dispensing device for a power plant according to claim 1, characterized in that: The drug supply mechanism includes a drug injection pipe, a drug delivery pipe, a vacuum ejector and a drug stock liquid barrel. One end of the drug injection pipe is set as the liquid outlet end of the drug supply mechanism and penetrates obliquely downward into the drug dispensing container. The other end of the drug injection pipe is connected to one end of the drug delivery pipe, and the other end of the drug delivery pipe is connected to the outlet of the vacuum ejector. The inlet of the vacuum ejector is connected to the drug stock liquid barrel. The drug stock liquid barrel is used to store ammonia-containing stock liquid.

6. The drug dispensing device for a power plant according to claim 5, characterized in that: The dispensing device also includes a circulation pump, a first filter, a first circulation pipe, a second circulation pipe, a first switch valve and a second switch valve. One end of the first circulation pipe is connected to the bottom of the dispensing container, the other end of the first circulation pipe is connected to one end of the first filter, the other end of the first filter is connected to the inlet of the circulation pump, the outlet of the circulation pump is connected to one end of the second circulation pipe, the other end of the second circulation pipe is connected to the inlet of the vacuum ejector, the first switch valve is connected to the first circulation pipe, and the first switch valve can turn on or off the first circulation pipe. The second switch valve is connected to the second circulation pipe, and the second switch valve can turn on or off the second circulation pipe.

7. The drug dispensing device for a power plant according to claim 1, characterized in that: There are multiple atomizers, which are stacked and spaced apart in an up-and-down direction; The water supply mechanism also includes a second filter and a third switch valve. The water delivery pipe includes a first pipe section and a second pipe section. One end of the first pipe section is connected to the outlet of the water pump, and the other end of the first pipe section is connected to one end of the second filter. One end of the second pipe section is connected to the other end of the second filter. The other end of the second pipe section penetrates into the medicine dispensing container and is connected to the nebulizer. The third switch valve is connected to the first pipe section, and the third switch valve can turn on or off the first pipe section.

8. The drug dispensing device for a power plant according to claim 1, characterized in that: The dispensing device further includes a drain pipe, a fourth switch valve, a pressure relief pipe and a pressure relief valve, wherein the drain pipe is connected to the bottom of the dispensing container, the fourth switch valve is connected to the drain pipe, and the fourth switch valve can open or close the drain pipe; One end of the pressure relief pipe is connected to the top of the medicine dispensing container, and the other end of the pressure relief pipe is connected to the sewage pipe. The connection position of the pressure relief pipe and the sewage pipe is farther away from the end of the sewage pipe connected to the medicine dispensing container than the fourth switch valve.

9. The drug dispensing device for a power plant according to claim 1, characterized in that: The dispensing device also includes a liquid level measuring mechanism, which is located outside the dispensing container. One end of the liquid level measuring mechanism is connected to the bottom side wall of the dispensing container, and the other end of the liquid level measuring mechanism is connected to the top side wall of the dispensing container.

10. The drug dispensing device for a power plant according to any one of claims 1 to 9, characterized in that: The dispensing device also includes a dosing pump, a dosing tube and a fifth switch valve. One end of the dosing tube is connected to the outlet of the dosing pump, and the other end of the dosing tube is connected to the bottom of the dispensing container. The fifth switch valve is connected to the dosing tube, and the fifth switch valve can turn on or off the dosing tube.

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