CN212989968U

CN212989968U - Automatic control device for recycling factory water

Info

Publication number: CN212989968U
Application number: CN202021266343.XU
Authority: CN
Inventors: 王洪志; 杨劲松; 杨滨
Original assignee: Shifang Changfeng Chemical Co ltd
Current assignee: Shifang Changfeng Chemical Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-04-16
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses an automatic control device for recycling factory water, which relates to the technical field of factory water, and comprises a collecting pool, a cooling pool and a PLC (programmable logic controller), wherein a communicating pipe with a communicating electromagnetic valve is arranged between the collecting pool and the cooling pool, a water inlet cavity and a water outlet cavity separated by a filter plate are arranged in the collecting pool and the cooling pool, a water pumping pipe is arranged in the water outlet cavity of the collecting pool, the free end of the water pumping pipe is communicated with a cooling tower A, a cooling pump and a temperature sensor are arranged on the water pumping pipe, the cooling tower A is communicated with a cooling tower B through a connecting pipe, a switching electromagnetic valve is arranged on the connecting pipe, the lower ends of the cooling tower A and the cooling tower B are respectively provided with a water outlet positioned in the water inlet cavity of the cooling pool, the water outlet is communicated with, the cooling pump, the temperature sensor and the switching electromagnetic valve are electrically connected with the PLC, and a water outlet pipe with a circulating pump is arranged in a water outlet cavity of the cooling pool; the utility model has the advantages of simple structure and effective energy conservation.

Description

Automatic control device for recycling factory water

Technical Field

The utility model relates to a mill's water technical field, more specifically is an automatic control device who relates to a mill's water recycling utilizes.

Background

The circulating cooling water system is a water supply system for exchanging hot water with cooling water, reducing the temperature and recycling the water, comprises an open type and a closed type, and consists of cooling equipment, a water pump and a pipeline.

At present, current cooling arrangement is in normally open state usually in the course of the work, can not adjust cooling arrangement's switching according to actual conditions, for example when the cold water temperature after the intensification is lower, does not need cooling arrangement work, only can carry out the nature cooling to the cold water after the intensification through the pipeline, and the cooling arrangement that is in operating condition this moment has caused the waste of the energy, is unfavorable for energy-concerving and environment-protective realization.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the problem of the energy waste that the cooling arrangement in order to solve current recirculating cooling water system was in the normally open state and brought, the utility model provides an automatic control device of factory water recycling.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides an automatic control device that factory water recycles, includes collecting pit, cooling tank and PLC controller, and the collecting pit is used for depositing the circulating water, and the cooling tank is used for depositing the cooling water, be equipped with communicating pipe between collecting pit and the cooling tank and be equipped with the intercommunication solenoid valve on communicating pipe, equal vertical filter that is equipped with in collecting pit and the cooling tank separates into intake antrum and play water cavity through the filter, be equipped with the water inlet in the intake antrum of collecting pit and go out the intracavity and be equipped with the drinking-water pipe, the free end intercommunication of drinking-water pipe has cooling tower A, be equipped with cooling pump and temperature sensor on the drinking-water pipe, cooling tower A has cooling tower B through the connecting pipe intercommunication, be equipped with the switching solenoid valve on the connecting pipe, the lower extreme of cooling tower A and cooling tower B all is equipped with the outlet and all is located the intake antr, The motor of the cooling tower A, the motor of the cooling tower B, the cooling pump, the temperature sensor and the switching electromagnetic valve are all electrically connected with the PLC, a water outlet pipe is arranged in the water outlet cavity of the cooling pool, a circulating pump is arranged on the water outlet pipe, when the temperature sensor detects that the temperature of the water in the water pumping pipe is within the temperature range A, the PLC closes the switching electromagnetic valve according to the signal of the temperature sensor, controls the motor of the cooling tower B to stop, reduces the rotating speed of the cooling pump, and achieves the energy-saving state A, when the temperature sensor detects that the temperature of water in the water pumping pipe is within a temperature range B, the highest temperature of the temperature range B is less than or equal to the lowest temperature of the temperature range A, the PLC controls the cooling pump to stop according to signals of the temperature sensor, the motor of the cooling tower A stops, and the communication electromagnetic valve is opened, so that an energy-saving state B is achieved.

Further, be equipped with check valve, pressure sensor and two three-way valves on the outlet pipe, pressure sensor is located between two three-way valves, pressure sensor and PLC controller electricity are connected, the circulating pump electricity is connected with the converter, converter and PLC controller electricity are connected, and when pressure sensor detected the pressure of outlet pipe higher, the PLC controller reduced the rotational speed of circulating pump through the converter, if pressure sensor detected out intraductal no pressure (for example workshop shut down), then controlled whole device and shut down.

Further, a bypass pipe is arranged between the two three-way valves.

Further, still including the moisturizing pipe that is located the intake antrum top of collecting pit, be equipped with the moisturizing solenoid valve on the moisturizing pipe, be equipped with level sensor in the intake antrum of collecting pit, moisturizing solenoid valve, level sensor all are connected with the PLC controller electricity, and when level sensor detected the water level in the collecting pit and is in low liquid level, start the moisturizing solenoid valve and begin to carry out the moisturizing through the moisturizing pipe, when the water level in the collecting pit reachs high liquid level, close the moisturizing solenoid valve and stop the moisturizing.

Furthermore, manual valves are arranged on the water pumping pipe and the water outlet pipe.

The utility model has the advantages as follows:

1. the utility model has simple structure, and according to the signal of the temperature sensor, the PLC controller can control the cooling pump, the motor of the cooling tower A and the motor of the cooling tower B to stop, thereby reducing the energy consumed by the device and effectively saving the energy;

2. the utility model discloses a PLC controller can be according to pressure sensor's signal, and the rotational speed of control circulating pump has reduced the energy consumption when guaranteeing the safety of outlet pipe.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

reference numerals: 1-collection pool, 2-water inlet chamber, 3-filter plate, 4-water outlet chamber, 5-communicating pipe, 6-communicating electromagnetic valve, 7-cooling pool, 8-water outlet pipe, 9-bypass pipe, 10-three-way valve, 11-pressure sensor, 12-check valve, 13-circulating pump, 14-manual valve, 15-cooling tower B, 16-connecting pipe, 17-switching electromagnetic valve, 18-cooling tower A, 19-temperature sensor, 20-cooling pump, 21-water pumping pipe, 22-liquid level sensor, 23-water replenishing electromagnetic valve, 24-water replenishing pipe and 25-water inlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

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, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in FIG. 1, this embodiment provides an automatic control device that factory water recycles, including collecting pit 1, cooling tank 7 and PLC controller, collecting pit 1 is used for depositing the circulating water, and cooling tank 7 is used for depositing the cooling water, be equipped with communicating pipe 5 and be equipped with intercommunication solenoid valve 6 on communicating pipe 5 between collecting pit 1 and the cooling tank 7, equal vertical filter 3 that is equipped with in collecting pit 1 and the cooling tank 7 and separate into intake antrum 2 and play water cavity 4 through filter 3, be equipped with water inlet 25 in the intake antrum 2 of collecting pit 1 and be equipped with drinking-water pipe 21 in the play water cavity 4, the free end intercommunication of drinking-water pipe 21 has cooling tower A18, be equipped with cooling pump 20 and temperature sensor 19 on the drinking-water pipe 21, cooling tower A18 has cooling tower B15 through connecting pipe 16 intercommunication, be equipped with switching solenoid valve 17 on the connecting pipe 16, the lower extreme of cooling tower A18 and cooling tower B15 all is equipped with the outlet and all is located the intake antrum 2 tops of cooling tank 7 The motor of the communication electromagnetic valve 6 and the cooling tower A18, the motor of the cooling tower B15, the cooling pump 20, the temperature sensor 19 and the switching electromagnetic valve 17 are all electrically connected with the PLC, a water outlet pipe 8 is arranged in the water outlet cavity 4 of the cooling pool 7, and a circulating pump 13 is arranged on the water outlet pipe 8.

The working principle is as follows: the water at the circulating water discharge point of each workshop is added with water from a water inlet 25 to a collecting tank 1, then is discharged from a water pumping pipe 21 through a filter plate 3, then enters a cooling tower A18 and a cooling tower B15 for cooling, then is discharged from water outlets of a cooling tower A18 and a cooling tower B15, then enters a cooling tank 7 for natural cooling, then enters a water using point of circulating water of each workshop from a water outlet pipe 8 through the filter plate 3, when a temperature sensor 19 detects that the temperature of the water in the water pumping pipe 21 is between 40 and 50 ℃, a PLC controller closes a switching electromagnetic valve 17 according to a signal of the temperature sensor 19, controls a motor of the cooling tower B15 to stop, reduces the rotating speed of a cooling pump 20 so as to reach an energy-saving state A, and controls the cooling pump 20 to stop according to the signal of the temperature sensor 19 when the temperature sensor 19 detects that the temperature of the water in the water pumping pipe 21 is between 30 and 40 ℃, the motor of the cooling tower a18 is stopped, and the communication solenoid valve 6 is opened, thereby achieving the energy saving state B.

Example 2

As shown in fig. 1, this embodiment is further improved on the basis of embodiment 1, specifically, a check valve 12, a pressure sensor 11 and two three-way valves 10 are arranged on the water outlet pipe 8, the pressure sensor 11 is located between the two three-way valves 10, the pressure sensor 11 is electrically connected to a PLC controller, the circulation pump 13 is electrically connected to a frequency converter, the frequency converter is electrically connected to the PLC controller, when the pressure sensor 11 detects that the pressure of the water outlet pipe 8 is high, the PLC controller reduces the rotation speed of the circulation pump 13 through the frequency converter, and if the pressure sensor 11 detects that no pressure exists in the water outlet pipe 8 (for example, a workshop stops production), the entire apparatus is controlled to stop.

Preferably, a bypass pipe 9 is further provided between the two three-way valves 10.

Example 3

As shown in fig. 1, this embodiment has made further improvement on embodiment 2's basis, specifically is still including the moisturizing pipe 24 that is located 2 tops of intake antrum of collecting pit 1, be equipped with moisturizing solenoid valve 23 on the moisturizing pipe 24, be equipped with level sensor 22 in collecting pit 1's the intake antrum 2, moisturizing solenoid valve 23, level sensor 22 all are connected with the PLC controller electricity, and when level sensor 22 detected the water level in the collecting pit 1 and is in low liquid level, start moisturizing solenoid valve 23 and begin to carry out the moisturizing through moisturizing pipe 24, when the water level in the collecting pit 1 reached high liquid level, close moisturizing solenoid valve 23 and stop the moisturizing.

Example 4

As shown in fig. 1, the present embodiment is further improved on the basis of embodiment 1, and specifically, the water pumping pipe 21 and the water outlet pipe 8 are both provided with a manual valve 14.

Claims

1. An automatic control device for recycling factory water is characterized by comprising a collecting pool (1), a cooling pool (7) and a PLC (programmable logic controller), wherein a communicating pipe (5) is arranged between the collecting pool (1) and the cooling pool (7), a communicating electromagnetic valve (6) is arranged on the communicating pipe (5), a filter plate (3) is vertically arranged in the collecting pool (1) and the cooling pool (7) and is separated into a water inlet cavity (2) and a water outlet cavity (4) through the filter plate (3), a water inlet (25) is arranged in the water inlet cavity (2) of the collecting pool (1), a water pumping pipe (21) is arranged in the water outlet cavity (4), the free end of the water pumping pipe (21) is communicated with a cooling tower A (18), a cooling pump (20) and a temperature sensor (19) are arranged on the water pumping pipe (21), the cooling tower A (18) is communicated with a cooling tower B (15) through a connecting pipe (16), be equipped with switching solenoid valve (17) on connecting pipe (16), the lower extreme of cooling tower A (18) and cooling tower B (15) all is equipped with the outlet and all is located intake antrum (2) top of cooling bath (7), motor, cooling pump (20), temperature sensor (19) of intercommunication solenoid valve (6), cooling tower A (18), the motor of cooling tower B (15), switching solenoid valve (17) all are connected with the PLC controller electricity, be equipped with outlet pipe (8) in the play water cavity (4) of cooling bath (7), be equipped with circulating pump (13) on outlet pipe (8).

2. An automatic control device for recycling plant water according to claim 1, characterized in that a check valve (12), a pressure sensor (11) and two three-way valves (10) are arranged on the water outlet pipe (8), the pressure sensor (11) is located between the two three-way valves (10), the pressure sensor (11) is electrically connected with the PLC, the circulating pump (13) is electrically connected with a frequency converter, and the frequency converter is electrically connected with the PLC.

3. An automatic control device for plant water recycling according to claim 2, characterized in that a by-pass pipe (9) is also provided between the two three-way valves (10).

4. The automatic control device for recycling plant water according to claim 1, further comprising a water replenishing pipe (24) located above the water inlet cavity (2) of the collecting tank (1), wherein a water replenishing electromagnetic valve (23) is arranged on the water replenishing pipe (24), a liquid level sensor (22) is arranged in the water inlet cavity (2) of the collecting tank (1), and the water replenishing electromagnetic valve (23) and the liquid level sensor (22) are electrically connected with the PLC.

5. An automatic control device for plant water recycling according to claim 1 or 2 or 3 or 4, characterized in that the suction pipe (21) and the outlet pipe (8) are provided with manual valves (14).