CN111947478B

CN111947478B - Dosing device and cooling tower system

Info

Publication number: CN111947478B
Application number: CN202010843337.4A
Authority: CN
Inventors: 王永全; 叶校圳; 陈力; 曾静; 严剑凡; 蔡蓝燕; 陈凯骅; 吴雯婷; 丁宏毅; 杨彤珊
Original assignee: Xiamen Tobacco Industry Co Ltd
Current assignee: Xiamen Tobacco Industry Co Ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2022-08-30
Anticipated expiration: 2040-08-20
Also published as: CN111947478A

Abstract

The invention discloses a dosing device and a cooling tower system. Medicine adding device includes that the medicine places dish and shower, and the medicine is placed the dish and is configured to hold and place the bottom surface that the dish was placed to medicine and have first filtration pore, and the shower has the delivery port that sets up in the top that the dish was placed to the medicine, and the spray water in the shower passes through the delivery port flow direction medicine and places the medicine in the dish so that the medicine dissolves, exports the below that the dish was placed to the medicine through first filtration pore after the medicine dissolves. According to the chemical feeding device, the spray pipe is arranged, so that a chemical is dissolved in the chemical placing disc firstly, and then a solution dissolved with the chemical is output to water through the first filtering hole for treatment, so that the phenomenon that the water receiving disc of the cooling tower is corroded due to overhigh local chemical concentration caused by the fact that a large block of solid chemical falls into the water receiving disc is avoided.

Description

Dosing device and cooling tower system

Technical Field

The invention relates to the field of water treatment, in particular to a dosing device and a cooling tower system.

Background

The cooling tower system generally includes a cooling tower, a water inlet pipe, a water outlet pipe, and a cooling water pump and a refrigerator disposed between the water outlet pipe and the water inlet pipe. The cooling circulation water exchanges and discharges heat to the air through the cooling tower so that the temperature of the cooling circulation water is reduced. Through the circulation of the cooling circulating water, the heat generated by the refrigerator is continuously discharged to the air, and the continuous refrigeration work of the refrigerator is realized.

The cooling tower comprises a draught fan and a filler which are arranged at the top. The cooling circulating water enters the cooling tower from the upper end of the cooling tower and flows through the packing in the cooling tower under the action of gravity to exchange heat with air to release heat to the air, so that the temperature of the cooling circulating water is reduced. Because the cooling tower is generally placed outdoors, the temperature of the cooling circulating water is mostly between 30 ℃ and 40 ℃, and bacteria and algae are easy to breed in the cooling circulating water in the temperature range, a bactericide is required to be put into the cooling tower for sterilization in order to ensure the normal operation of the cooling tower system.

For the glass fiber reinforced plastic type cooling tower, the chlorine cake is generally placed in a water receiving tray of the cooling tower to be gradually dissolved so as to realize continuous sterilization for a period of time. The chlorine cake is a main bactericide, when the chlorine cake is dissolved, the concentration of chloride ions around the chlorine cake is high, and when the water body flows slowly, the chlorine cake has high corrosivity on metals.

Disclosure of Invention

The invention aims to provide a dosing device and a cooling tower system so as to reduce corrosion of a cooling tower of a medicine.

The present invention provides in a first aspect a dosing device comprising:

a medicine placing tray configured to accommodate a medicine to be placed and having a bottom surface with a plurality of first filtering holes; and

the spray pipe is provided with a water outlet arranged above the medicine placing plate, spray water in the spray pipe flows to the medicines in the medicine placing plate through the water outlet so as to dissolve the medicines, and the medicines are output to the lower part of the medicine placing plate through the first filtering hole after being dissolved.

In some embodiments, the drug adding device further comprises at least one drug adding cylinder, wherein a plurality of drugs are placed in the drug adding cylinder and sequentially arranged along the axial direction, and the plurality of drugs are sequentially output to the drug placing disc.

In some embodiments, the side of the medicine placing tray has an opening, the outlet end of the medicine adding barrel is arranged opposite to the opening, and the medicine adding barrel comprises an inclined section which is arranged obliquely relative to the vertical direction so that a plurality of medicines arranged in sequence are output onto the medicine placing tray under the action of gravity.

In some embodiments, the applicator cartridge further comprises a horizontal section connected to the lower end of the inclined section, the outlet end being located at the end of the horizontal section.

In some embodiments, the dosing device further comprises a limit stop, which is disposed on the medicine placing tray and is located at an end of the plurality of medicines in the arrangement direction on the medicine placing tray to stop the plurality of medicines from moving continuously.

In some embodiments, the position of the limit stops on the drug placement tray is adjustably set.

In some embodiments, the dosing device further comprises a regulating valve disposed on the shower.

In some embodiments, the medicine adding device further comprises a filter disc arranged below the medicine placing disc, and a plurality of second filter holes are formed in the bottom surface of the filter disc.

In some embodiments, the medication placing tray is made of a corrosion resistant material.

The second aspect of the invention provides a cooling tower system, which comprises a cooling tower and at least one medicine adding device provided by any one of the first aspect of the invention, wherein at least one medicine placing tray is arranged above a water receiving tray of the cooling tower.

In some embodiments, the cooling tower system further comprises a support by which the drug placement tray is connected to the bottom of the cooling tower.

In some embodiments, the cooling tower system further comprises a water inlet pipe, a refrigerator, a cooling water pump and a water outlet pipe, the water inlet pipe is connected with the water inlet of the cooling tower, the water outlet pipe is connected with the water outlet of the cooling tower, the cooling water pump and the refrigerator are sequentially connected between the water outlet pipe and the water inlet pipe, and the water inlet of the spraying pipe is connected with the water inlet pipe so as to introduce the cooling circulating water in the water inlet pipe into the spraying pipe.

In some embodiments, the cooling tower is a metal cooling tower.

Based on the technical scheme provided by the invention, the dosing device comprises a medicine placing disc and a spray pipe, wherein the medicine placing disc is configured to contain and place medicines, the bottom surface of the medicine placing disc is provided with a first filtering hole, the spray pipe is provided with a water outlet arranged above the medicine placing disc, spray water in the spray pipe flows to the medicines in the medicine placing disc through the water outlet so as to dissolve the medicines, and the spray water is output to the lower part of the medicine placing disc through the first filtering hole after the medicines are dissolved. The shower water that the delivery port of shower flowed sprays to the medicine that is located the below and places the dish on, and the medicine dissolves gradually under the spraying of shower water, and the solution that has dissolved the medicine is exported the below that the dish was placed to the medicine through first filtration pore and is handled with the water that is located the medicine below of placing the dish. This charge device makes the medicine place the dish earlier through setting up the shower and dissolves in the medicine, thereby makes the solution that has dissolved the medicine export the aquatic through first filtration hole and handle and avoid massive solid-state medicine to fall into the water collector and cause local medicament concentration too high and corrode cooling tower water collector in.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

FIG. 1 is a schematic diagram of a cooling tower system according to an embodiment of the present invention;

FIG. 2 is a schematic front view of a drug adding device according to an embodiment of the present invention;

fig. 3 is a schematic top view of the drug adding device shown in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, the cooling tower system according to the embodiment of the present invention includes a cooling tower 10, a water inlet pipe 40, a water outlet pipe 50, a refrigerator 20, and a cooling water pump 30. The cooling tower 10 has an inlet at the top end and an outlet at the bottom end. The cooling water pump 30 is connected to the water outlet of the cooling tower 10 through a water outlet pipe 50 and outputs the cooling circulating water to the refrigerator 20. The refrigerator 20 is connected to the water inlet of the cooling tower 10 through a water inlet pipe 40.

The cooling tower 10 of the present embodiment is a metal cooling tower. In particular to a stainless steel cooling tower.

In order to improve the corrosion of the water-receiving tray of the cooling tower 10 caused by the water treatment chemicals, the inventor of the present application proposes the chemical adding device of the embodiment of the present invention.

As shown in fig. 1 and 2, the cooling tower system according to the embodiment of the present invention further includes a dosing device. This charge device includes:

a medicine placing tray 3 configured to accommodate the medicine 2 to be placed and having a plurality of first filtering holes in a bottom surface of the medicine placing tray 3; and

shower 5 has the delivery port that sets up in the top of dish 3 is placed to the medicine, and the shower water in shower 5 passes through delivery port flow direction medicine 2 in the dish 3 is placed to the medicine so that medicine 2 dissolves, exports the below that dish 3 is placed to the medicine through first filtration pore after medicine 2 dissolves.

The shower water that the delivery port of shower 5 flowed sprays to the medicine that is located the below and places medicine 2 on the dish 3, and medicine 2 dissolves gradually under the spraying of shower water, and the solution that has dissolved medicine 2 exports the below that the dish 3 was placed to the medicine through first filtration pore and handles with the water that is located the medicine below of placing the dish 3. This charge device makes medicine 2 dissolve in medicine placing tray 3 earlier through setting up shower 5, thereby makes the solution that has medicine 2 dissolved export the aquatic through first filtration hole and handle and avoid massive solid-state medicine to fall into and cause local medicament concentration too high and corrode cooling tower water collector in the water collector.

And this medicine is placed and is provided with first filtration pore on the dish 3 and make the bottom of medicine placing dish 3 can not ponding to prevent that medicine 2 from soaking in the water for a long time when shower 5 does not spray water. Drug 2 of the present example is a water treatment drug. In particular to a chlorine cake for sterilization. The chlorine cake was a cylinder of 100mm diameter, 40mm height and 0.2kg weight. In the medicine placing tray 3, a plurality of medicines 2 are arranged in order in the horizontal direction thereof.

The plurality of medicines 2 are gradually dissolved while being sprayed by the spray water. Specifically, in the present embodiment, the cross section of the shower pipe 5 is circular, the diameter of the shower pipe 5 is substantially the same as the height (thickness) of the medicines 2, and the shower pipe 5 is aligned with one of the medicines 2, and when spraying, the spraying water is mainly sprayed and dissolved in alignment with one of the medicines 2. In other embodiments, to increase the dissolution rate of the drug, the diameter of the spray pipe can be increased to increase the spray area of the spray pipe, so that more drug can be dissolved at the same time.

In order to make the concentration of the chemical agent of the cooling circulation water entering the cooling tower uniform, the plurality of first filtering holes on the bottom surface of the chemical placing tray 3 of the present embodiment are uniformly distributed.

In order to avoid the water flow impact of the spray water on the medicine 2, the local collapsed solid medicine 2 directly falls into the water pan of the cooling tower to cause the local medicine concentration to be too high and corrode the water pan, the medicine adding device of the embodiment further comprises a filter disc 7 arranged below the medicine placing disc 3, and a plurality of second filter holes 8 are formed in the bottom surface of the filter disc 7. The second filtering holes 8 of the filtering tray 7 and the first filtering holes arranged on the medicine placing tray 3 form two layers of filtering for the medicine 2 so as to effectively prevent large solid medicine 2 from entering the water receiving tray of the cooling tower 10.

As shown in fig. 3, the second filtering holes 8 are uniformly distributed on the filtering tray 7.

As shown in fig. 3, the area of the filter tray 7 of the present embodiment is larger than the area of the medicine placing tray 3. And the filter tray 7 and the medicine placing tray 3 of the present embodiment are both square. The drug placement tray 3 is located approximately above the centre of the filter tray 7.

When the size of the filter disc 7 and the size of the second filter holes 8 are designed, solid block-shaped medicines can be filtered to avoid falling into the water receiving disc of the cooling tower, and the height of the liquid level in the filter disc 7 is smaller than one half of the height of the filter disc.

In order to avoid the concentration of the local medicine in the cooling circulation water from being too high, the medicine placing tray 3 of the present embodiment is disposed at a position close to the water outlet of the cooling tower 10. The water flow near the water outlet of the cooling tower 10 is larger to further dilute the solution flowing out of the medicine placing tray 3, so as to avoid overhigh local medicine concentration.

In the present embodiment, the medicine placing tray 3 is supported above the water receiving tray of the cooling tower 10 by a support member. And the shower pipe 5 penetrates from the outside of the cooling tower 10 to the inside of the cooling tower 10 with its water outlet positioned above the medicine placing tray 3.

The medicine placing tray 3 of the present embodiment is made of an anticorrosive material. And the filter discs 7 are also made of a corrosion-resistant material. Such as PVC material, etc.

As shown in fig. 1 to 3, the dosing device of the present embodiment further includes a regulating valve 6 disposed on the spray pipe 5. The flow of the shower water at the outlet of the shower pipe 5 is adjusted by the adjusting valve 6 to control the dissolution rate of the drug 2, thereby realizing the control of the concentration of the cooling circulating water in the cooling tower 10.

As shown in fig. 1, the inlet of the shower pipe 5 of the present embodiment is connected to an inlet pipe 40. The spray water of the spray pipe 5 is guided from the cooling circulation water in the water inlet pipe 40. That is to say, the dosing device of this embodiment need not introduce new shower water from the outside and directly uses the cooling circulation water to simplify the structure of whole cooling tower system. When the cooling load becomes large, the number of the refrigerators 20 turned on becomes large, and the water pressure and the amount of water in the water inlet pipe 40 become large, and the water pressure and the amount of water in the shower pipe 5 become large, and the dissolution rate of the medicine 2 becomes large. When the refrigeration load becomes smaller, the number of the refrigerators is reduced, the water pressure and the water amount in the water inlet pipe 40 are both reduced, the water pressure and the water amount in the shower pipe 5 are also reduced, and the dissolution rate of the medicine 2 is also reduced. Therefore, the dissolution speed of the medicine 2 in this embodiment is positively correlated with the refrigeration load, and the coordination between the number of the start-up refrigerators and the amount of dissolved medicine is realized.

The upper end of the medicine placing tray 3 of the present embodiment is open so that the medicines 2 placed in the medicine placing tray 3 receive the spray of the upper shower water. And the medicine placing tray 3 includes side walls respectively located at the front and rear sides (the direction perpendicular to the paper surface in fig. 2) to limit the medicine 2. And the height of the side walls of the present embodiment is smaller than the height (diameter) of the medicine 2.

In order to make charge device constantly to the solution that cooling cycle aquatic output was dissolved medicine, the charge device of this embodiment still includes at least one and adds cartridge case 1, adds and has placed a plurality of medicines 2 that arrange in proper order along the axial in cartridge case 1 and put on the dish 3 is placed to the medicine with a plurality of medicines 2 output in proper order.

The diameter of the cartridge 1 of this embodiment is just enough to allow the drug to pass through. Can be designed into a single-row cylinder or a multi-row cylinder according to the disposable medicine adding amount, the continuous automatic medicine adding time required and the length of the medicine adding cylinder and the requirement of the medicine dissolving speed.

In particular in this embodiment, the side of the drug placement tray 3 has an opening. The outlet end of the drug loading cartridge 1 is located at an opening in the side of the drug placing tray 3. The medicine adding cartridge 1 includes an inclined section which is disposed obliquely with respect to the vertical direction so that a plurality of medicines 2 arranged in sequence are output onto the medicine placing tray 3 by the gravity. As shown in fig. 2, the plurality of medicines 2 are discharged onto the medicine placing tray 3 by gravity and are sequentially arranged in the left-right direction. After the right-side medicine 2 is dissolved by the spraying water, the left-side medicine 2 is automatically pushed to the right side by the gravity of the medicines 2 in the medicine adding cylinder 1.

In order to ensure the stable movement of the medicine in the medicine adding barrel 1 of the present embodiment, the medicine adding barrel 1 of the present embodiment further comprises a horizontal section connected to the lower end of the inclined section, and the outlet end is located at the end of the horizontal section. Specifically, as shown in fig. 2, the end of the horizontal section is overlapped on the bottom plate of the medicine placing tray 3 so that the medicine 2 is smoothly conveyed onto the medicine placing tray 3 by the gravity.

The cartridge 1 of this embodiment is provided with an inclined section so that the medicine 2 automatically moves into the medicine placing tray 3 under the action of gravity. In other embodiments not shown in the figures, the cartridge may also be horizontally positioned and provided with pushing means for pushing the drug to continuously push the drug onto the drug placement tray 3.

In order to prevent that medicine 2 in the medicine adding barrel 1 from continuously gliding under the effect of gravity, the medicine adding device of this embodiment still includes limit stop 4, and limit stop 4 sets up and places the dish 3 on the medicine and be located the ascending tip of the range direction of a plurality of medicines on the dish 3 is placed to the medicine in order to block a plurality of medicines and continue to move.

The limit stoppers 4 of the present embodiment are adjustably positioned on the medicine placing tray 3. The number of the medicines 2 exposed on the medicine placing tray 3 can be adjusted by adjusting the position of the limit stopper 4. Specifically, the limit stopper 4 is inserted on the medicine placing tray 3. For example, a plurality of insertion holes are formed in the medicine placing tray 3 at different positions, and the limit stopper 4 is selectively inserted into one of the insertion holes to adjust the position.

Specifically, in the present embodiment, the limit stopper 4 is a plate-shaped block. The upper end of the bump stopper 4 goes beyond the upper end of the medicine 2 to better block the medicine 2.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. A cooling tower system, comprising a cooling tower (10) and at least one medicating device disposed above a water pan of the cooling tower (10), the medicating device comprising:

a medicine placing tray (3) configured to accommodate placing of a medicine (2) and a bottom surface of the medicine placing tray (3) having a plurality of first filtering holes; and

the spray pipe (5) is provided with a water outlet arranged above the medicine placing disc (3), spray water in the spray pipe (5) flows to the medicines (2) in the medicine placing disc (3) through the water outlet so as to dissolve the medicines (2), and the medicines (2) are output to the lower part of the medicine placing disc (3) through the first filtering holes after being dissolved;

medicine adding device still includes at least one and adds cartridge case (1), it just will to have placed a plurality of medicines (2) of arranging in proper order along the axial in cartridge case (1) and will a plurality of medicines (2) are exported in proper order on dish (3) is placed to the medicine, the side that dish (3) was placed to the medicine has the opening, add the exit end of cartridge case (1) with the opening sets up relatively, add cartridge case (1) including for vertical direction slope section that sets up so that arrange in proper order a plurality of medicines (2) are exported under the effect of gravity on the dish (3) is placed to the medicine, medicine adding device still including set up in governing valve (6) on shower (5), medicine adding device still includes limit stop (4), limit stop (4) set up in on the medicine place dish (3) and be located a plurality of medicines are in the tip in the arrangement direction on the dish (3) is placed to the medicine is in order to block a plurality of continuing the medicine And (4) moving.

2. The cooling tower system according to claim 1, wherein the loading tube (1) further comprises a horizontal section connected to a lower end of the inclined section, the outlet end being located at an end of the horizontal section.

3. Cooling tower system according to claim 1, characterised in that the position of the limit stops (4) on the medication placing tray (3) is adjustably arranged.

4. The cooling tower system according to any one of claims 1-3, wherein the dosing device further comprises a filter tray (7) disposed below the drug placement tray (3), a bottom surface of the filter tray (7) being provided with a plurality of second filter holes (8).

5. Cooling tower system according to any of claims 1-3, characterised in that the drug placement tray (3) is made of a corrosion-resistant material.

6. The cooling tower system according to claim 1, further comprising a support by which the drug placement tray (3) is connected to the bottom of the cooling tower (10).

7. The cooling tower system according to claim 1, further comprising a water inlet pipe (40), a refrigerator (20), a cooling water pump (30) and a water outlet pipe (50), wherein the water inlet pipe (40) is connected with a water inlet of the cooling tower (10), the water outlet pipe (50) is connected with a water outlet of the cooling tower (10), the cooling water pump (30) and the refrigerator (20) are sequentially connected between the water outlet pipe (50) and the water inlet pipe (40), and a water inlet of the spray pipe (5) is connected with the water inlet pipe (40) so as to introduce the cooling circulation water in the water inlet pipe (40) into the spray pipe (5).

8. The cooling tower system of claim 1, wherein the cooling tower is a metal cooling tower.