CN219559327U - Back-connection pipe type self-cleaning mixing and dosing device for cooling tower - Google Patents

Abstract

The utility model discloses a return pipe type self-cleaning mixing and dosing device for a cooling tower, which comprises a primary cooling system, a secondary cooling system and a dosing mechanism, wherein the dosing mechanism is arranged between the primary cooling system and the secondary cooling system and comprises a dosing tank, an injection pipe, a communicating pipe, an electromagnetic valve, an impeller, a bevel gear A, a premixing tank, a stirring shaft, a blade and a bevel gear B, the dosing tank for storing a raw solution of a medicament is arranged in the dosing tank, the communicating pipe is arranged at the bottom of the dosing tank, and the premixing treatment before adding various medicaments can be realized through the dosing mechanism and the connecting mechanism, meanwhile, the pressure difference between the front part and the rear part of a dosing device can be increased, and the flow speed of cooling circulating water in the dosing device can be increased, so that the dosing effect is improved.

Description

Back-connection pipe type self-cleaning mixing and dosing device for cooling tower

Technical Field

The utility model relates to the technical field of cooling water treatment, in particular to a return pipe type self-cleaning mixing and dosing device for a cooling tower.

Background

In modern industrial production, in order to save water resources, the heat exchanger water adopts a circulating use mode as much as possible, and the variable direct current cooling system is a circulating cooling water system, in the system, cooling water is not discharged immediately after being used, but is recycled and reused, water is cooled again through a cooling tower, part of water is continuously evaporated when passing through the cooling tower in the circulating process, so that mineral substances and ion content in water are continuously concentrated and increased, when the mineral substances are concentrated to more than a certain degree, a large amount of crystals are precipitated and deposited in a copper pipe of a condenser to form scale, the heat exchange efficiency is seriously influenced, the electricity consumption is increased, the service life of equipment is reduced, so that in order to maintain the mineral substance and ion content to be stable at a certain value, fresh water is required to be supplemented to the system, a certain amount of concentrated water is discharged, and when fresh water is supplemented, medicines such as an oxidation bactericide and a corrosion and scale inhibitor are added through a chemical adding device to reduce the production and protect the service life of the equipment.

The existing dosing equipment has the following disadvantages when in use: the prior dosing device can not realize the premixing treatment of various additive agents, and the connection mode of the feed back pipe of the dosing pipeline of the prior primary system is consistent with the circulation direction of cooling water, the dosing inlet connection point is before the replacement of the water pump back plate, and the dosing outlet connection point is after the replacement of the plate, so that the pressure difference is smaller before and after the inlet and outlet of the dosing equipment when the water pump runs at low power under different working conditions, thereby influencing the dosing effect, and further influencing the flow velocity in the dosing pipeline.

Disclosure of Invention

The utility model mainly aims to provide a return pipe type self-cleaning mixing and dosing device for a cooling tower, which can realize premixing treatment before adding various medicaments through a dosing mechanism and a connecting mechanism, can increase the pressure difference before and after an inlet and an outlet of dosing equipment, and can increase the flow rate of cooling circulating water in the dosing equipment, thereby effectively solving the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a cooling tower is with supplying back pipe formula self-cleaning compounding dosing device, includes one-level cooling system, still includes second grade cooling system and dosing mechanism, install dosing mechanism between one-level cooling system and the second grade cooling system, dosing mechanism includes dosing tank, injection pipe, communicating pipe, solenoid valve, impeller, bevel gear A, premix case, (mixing) shaft, paddle and bevel gear B, and dosing tank inside is provided with the dosing tank of storage medicine stoste and dosing tank bottom is provided with communicating pipe, and impeller shaft direction are installed to inside one end of communicating pipe are located the outside bevel gear A of communicating pipe, and the bevel gear B of meshing with bevel gear A is installed at the inside through the (mixing) shaft top of premixing case.

The device comprises a first cooling system, a second cooling system, a water pump, a water inlet pipe, a water outlet pipe, a plate exchanger, a dosing water inlet pipe and a dosing water outlet pipe, wherein the water inlet and outlet ends of the dosing mechanism are connected with the cooling tower through the cooling tower pipe; the position of the connection point of the dosing water outlet pipe is adjusted to the forward water inlet end of the water pump, so that the front-back pressure difference of the inlet and outlet of the dosing mechanism is increased, the flow speed of cooling circulating water in the dosing mechanism is increased, and the dosing effect is improved.

Further, an injection pipe extending to the outside of the dosing tank is arranged at the top of the dosing tank, and an electromagnetic valve is arranged at the joint between the dosing tank and the communicating pipe; the injection pipe is used for conveniently injecting the medicament stock solution, and the electromagnetic valve is used for remotely controlling the medicament injection.

Further, the dosing water inlet pipe is connected with the inlet end of the communicating pipe, and the discharge end of the premixing box is connected with the dosing water outlet pipe; the medicine adding inlet and outlet pipelines are connected with the communicating pipe to realize circulation.

Compared with the prior art, the utility model has the following beneficial effects: the medicine adding tank is internally used for storing the raw liquid of the medicine adding agent, the medicine adding water inlet pipe is used for inputting the water body into the communicating pipe, the electromagnetic valve is controlled to be opened to discharge the medicine when the medicine adding water inlet pipe is needed, the medicine is conveyed in the communicating pipe and the water body and then enters the premixing box, the impeller is driven to rotate by utilizing water flow impact, and then the bevel gear A is driven to rotate, the bevel gear B synchronously rotates and drives the stirring shaft and the blades to operate when the bevel gear A rotates, the water body entering the premixing box and various medicines are premixed and then discharged, the medicine mixing efficiency is improved, external medicine mixing equipment is not needed, and the cost is reduced; the position of the connection point of the dosing water outlet pipe is adjusted to the forward water inlet end of the water pump, so that the front-back pressure difference of the inlet and outlet of the dosing mechanism is increased, the flow speed of cooling circulating water in the dosing mechanism is increased, and the dosing effect is improved.

Drawings

FIG. 1 is a schematic view of the external structure of a dosing tank of a return pipe type self-cleaning mixing and dosing device for a cooling tower.

Fig. 2 is a schematic diagram of the internal structure of a dosing tank of the return pipe type self-cleaning mixing and dosing device for the cooling tower.

FIG. 3 is a schematic diagram showing the structure of a cooling tower with improved pipeline connection of the systems of the return pipe type self-cleaning mixing and dosing device.

Fig. 4 is a schematic diagram showing the structure of the cooling tower before the pipeline connection of the systems of the return pipe type self-cleaning mixing and dosing device is improved.

In the figure: 1. a primary cooling system; 2. a secondary cooling system; 3. a dosing mechanism; 301. a dosing box; 302. a dosing tank; 303. an injection tube; 304. a communicating pipe; 305. an electromagnetic valve; 306. an impeller; 307. bevel gears A; 308. a premix tank; 309. a stirring shaft; 310. a paddle; 311. bevel gear B; 4. a connecting mechanism; 401. a cooling tower tube; 402. a water pump; 403. plate replacement; 404. a dosing water inlet pipe; 405. and a medicine adding water outlet pipe.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, a back-connection pipe type self-cleaning mixing and dosing device for a cooling tower comprises a primary cooling system 1, a secondary cooling system 2 and a dosing mechanism 3, wherein the dosing mechanism 3 is arranged between the primary cooling system 1 and the secondary cooling system 2, the dosing mechanism 3 comprises a dosing tank 301, a dosing tank 302, an injection pipe 303, a communicating pipe 304, an electromagnetic valve 305, an impeller 306, a bevel gear a307, a premixing tank 308, a stirring shaft 309, a paddle 310 and a bevel gear B311, the dosing tank 301 is internally provided with the dosing tank 302 for storing a stock solution of a medicament, the bottom of the dosing tank 302 is provided with the communicating pipe 304, one end inside the communicating pipe 304 is provided with the impeller 306, the impeller 306 is axially provided with the bevel gear a307 which is arranged outside the communicating pipe 304, the premixing tank 308 is internally provided with the paddle 310 through the stirring shaft 309, and the top of the stirring shaft 309 is provided with the bevel gear B311 which is meshed with the bevel gear a 307.

The device further comprises a connecting mechanism 4, wherein the connecting mechanism 4 comprises a cooling tower pipe 401, a water pump 402, a plate exchanger 403, a dosing water inlet pipe 404 and a dosing water outlet pipe 405, the inlet and outlet ends of the dosing mechanism 3 are connected with the cooling tower through the cooling tower pipe 401, the plate exchanger 403 is arranged between the primary cooling system 1 and the secondary cooling system 2, the water outlet end of the water pump 402 is connected with the dosing tank 301 through the dosing water inlet pipe 404, and the water inlet end of the water pump 402 is connected with the dosing tank 301 through the dosing water outlet pipe 405; the position of the connection point of the dosing outlet pipe 405 is adjusted to the front water inlet end of the pump 402, so that the front-rear pressure difference of the inlet and outlet of the dosing mechanism 3 is increased, the flow speed of cooling circulating water in the dosing mechanism 3 is increased, and the dosing effect is improved.

Wherein, the top of the dosing tank 302 is provided with an injection pipe 303 extending to the outside of the dosing tank 301, and an electromagnetic valve 305 is installed at the joint between the dosing tank 302 and the communicating pipe 304; the injection of the medicament stock solution is facilitated by the injection tube 303, and the injection of the medicament is remotely controlled by the solenoid valve 305.

Wherein, the dosing water inlet pipe 404 is connected with the inlet end of the communicating pipe 304, and the discharge end of the premixing box 308 is connected with the dosing water outlet pipe 405; the dosing inlet and outlet pipes are all connected with the communicating pipe 304 to realize circulation, and further heat exchange treatment is performed through the plate exchanger 403.

It should be noted that, the utility model is a self-cleaning mixing and dosing device for a cooling tower, when in operation, the dosing tank 302 stores the raw liquid of the drug-loading agent, the dosing water inlet pipe 404 inputs the water into the communicating pipe 304, the electromagnetic valve 305 is controlled to be opened for drug discharge when needed, the drug is conveyed in the communicating pipe 304 and the water and then enters the premixing box 308, the impeller 306 is driven to rotate by the water flow impact, the bevel gear A307 is driven to rotate, the bevel gear B311 synchronously rotates and drives the stirring shaft 309 and the blade 310 to operate when the bevel gear A307 rotates, the water and various drugs entering the premixing box 308 are premixed and then discharged, the drug mixing efficiency is improved, external drug mixing equipment is not needed, and the cost is reduced; the position of the connection point of the dosing outlet pipe 405 is adjusted to the front water inlet end of the pump 402, so that the front-rear pressure difference of the inlet and outlet of the dosing mechanism 3 is increased, the flow speed of cooling circulating water in the dosing mechanism 3 is increased, and the dosing effect is improved.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a cooling tower is with supplying back pipe formula self-cleaning compounding dosing device, includes one-level cooling system (1), its characterized in that still includes second grade cooling system (2) and dosing mechanism (3), install dosing mechanism (3) between one-level cooling system (1) and the second grade cooling system (2), dosing mechanism (3) are including dosing tank (301), dosing tank (302), injection pipe (303), communicating pipe (304), solenoid valve (305), impeller (306), bevel gear A (307), premix case (308), (309), paddle (310) and bevel gear B (311), dosing tank (302) and dosing tank (302) bottom that are provided with storage medicament stoste are provided with communicating pipe (304), impeller (306) and impeller (306) axial mounting are located communicating pipe (304) outside in communicating pipe (304) inside one end, and paddle (310) are installed through (309) and bevel gear A (307) is installed at (309) top and bevel gear B (311) meshing with bevel gear A (307) is installed to stirring shaft (308) inside.

2. A cooling tower is with supplying tieback tubular self cleaning compounding dosing device according to claim 1 characterized in that: still include coupling mechanism (4), coupling mechanism (4) are including cooling tower pipe (401), water pump (402), board trades (403), dosing inlet tube (404) and dosing outlet pipe (405), dosing mechanism (3) advance row end and are all connected with the cooling tower through cooling tower pipe (401), install board trades (403) between one-level cooling system (1) and second grade cooling system (2), water pump (402) drainage end is connected with dosing tank (301) through dosing inlet tube (404), water pump (402) are advanced water end and are connected with dosing tank (301) through dosing outlet pipe (405).

3. A cooling tower is with supplying tieback tubular self cleaning compounding dosing device according to claim 1 characterized in that: injection pipe (303) extending to the outside of the dosing tank (301) is arranged at the top of the dosing tank (302), and an electromagnetic valve (305) is arranged at the joint between the dosing tank (302) and the communicating pipe (304).

4. A cooling tower is with supplying tieback tubular self cleaning compounding dosing device according to claim 2, characterized in that: the dosing water inlet pipe (404) is connected with the inlet end of the communicating pipe (304), and the discharge end of the premixing box (308) is connected with the dosing water outlet pipe (405).