CN216245111U - Circulating water cooling treatment system - Google Patents
Circulating water cooling treatment system Download PDFInfo
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- CN216245111U CN216245111U CN202121587284.0U CN202121587284U CN216245111U CN 216245111 U CN216245111 U CN 216245111U CN 202121587284 U CN202121587284 U CN 202121587284U CN 216245111 U CN216245111 U CN 216245111U
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Abstract
The utility model discloses a circulating water cooling treatment system, which comprises: the system comprises a cooling subsystem, a circulating water subsystem, a first user equipment group, a second user equipment group and an upper tower side filter subsystem; the outlet of the cooling subsystem is connected with the inlet of the circulating water subsystem, the first outlet of the circulating water subsystem is connected with the inlet of the first user equipment group, the second outlet of the circulating water subsystem is connected with the inlet of the second user equipment group, the outlet of the first user equipment group is connected with the inlet of the cooling subsystem, the outlet of the second user group is connected with the inlet of the upper tower side filter subsystem, and the outlet of the upper tower side filter subsystem is connected with the inlet of the cooling subsystem. The technical problems of difficulty in water quantity regulation of multiple users, complex pipelines and high construction cost in the prior art are solved, and the technical effects of reducing energy consumption, improving operation efficiency and saving construction cost are achieved.
Description
Technical Field
The utility model relates to the field of steel, in particular to a circulating water cooling treatment system.
Background
The steel industry is the industry of high investment and high energy consumption, energy conservation and consumption reduction are always the goals pursued by steel enterprises, and are also important means for realizing benefits of the enterprises, wherein the reduction of the cost of water for steel per ton is an important bottleneck for energy conservation and consumption reduction. The traditional circulating water treatment system consists of a medium-pressure circulating water supply subsystem, an upper tower lifting subsystem, a side filter subsystem, a cooling subsystem and a dosing device. The medium-pressure circulating water supply subsystem utilizes a single pump set to pressurize and convey circulating water to a plurality of cooling water users such as a chain grate machine and a ring cooling machine, and a part of circulating backwater enters a cooling tower set for cooling by utilizing residual pressure and then flows back to a circulating water pool for a circulating water pump to use; and the other part of circulating water is decompressed after passing through open equipment such as a chain grate machine, and the like, the pressureless backwater firstly flows back to the upper tower lifting water pool, then the upper tower lifting subsystem is utilized to lift the backwater of the water pool to the cooling tower for cooling, and finally flows back to the circulating water pool. In order to ensure the quality of the circulating water, a bypass filter subsystem and a dosing device are arranged.
But the water pressure requirements of circulating water users in the production line are different greatly, and a single water supply subsystem can cause difficulty in regulating the water quantity of multiple users, so that the system is unstable in operation; meanwhile, the traditional circulating cooling water treatment subsystem respectively arranges the upper tower lifting subsystem and the side filter subsystem, so that the characteristics of long process route, increased pump sets, complex process pipeline and control, high power consumption and the like are caused, and the initial investment and operation cost of the project is high.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application solves the technical problems of difficult water volume adjustment of multiple users, complex pipelines and high construction cost in the prior art by providing the circulating water cooling treatment system, and achieves the technical effects of reducing energy consumption, improving operation efficiency and saving construction cost.
On one hand, the present application provides the following technical solutions through an embodiment of the present application:
a circulating water cooling treatment system comprising:
the system comprises a cooling subsystem, a circulating water subsystem, a first user equipment group, a second user equipment group and an upper tower side filter subsystem;
the outlet of the cooling subsystem is connected with the inlet of the circulating water subsystem so as to enable circulating return water cooled by the cooling subsystem to flow into the circulating water subsystem; a first outlet of the circulating water subsystem is connected with an inlet of the first user equipment group, and a second outlet of the circulating water subsystem is connected with an inlet of the second user equipment group so as to respectively supply circulating water with different pressures to the first user equipment group and the second user equipment group; an outlet of the first user equipment group is connected with an inlet of the cooling subsystem so as to circulate the first user equipment group with return water to flow into the cooling subsystem for cooling; the outlet of the second user group is connected with the inlet of the upper tower side filter subsystem, so that the second user equipment group circularly returns water to flow into the upper tower side filter subsystem for filtering and impurity removal; and an outlet of the upper tower side filter subsystem is connected with an inlet of the cooling subsystem so as to enable the filtered and impurity-removed circulating return water to flow into the cooling subsystem for cooling.
In one embodiment, the circulating water subsystem includes: the system comprises a circulating water tank, a first circulating water supply pump set and a second circulating water supply pump set; inlets of the first circulating water supply pump group and the second circulating water supply pump group are connected with an outlet of the circulating water pool; and the outlet of the first circulating water supply pump group is connected with the inlet of the first user equipment group, and the outlet of the second circulating water supply pump group is connected with the inlet of the second user equipment group.
In one embodiment, a first liquid level sensor is arranged in the circulating water tank.
In one embodiment, the method further comprises: and the dosing device is connected with a dosing port of the circulating water tank.
In one embodiment, the upper tower bypass filter subsystem comprises: an upper tower lifting water pool, an upper tower lifting water pump and a side filtration filter; the inlet of the upper tower lifting water pool is connected with the outlet of the second user equipment group, the inlet of the upper tower lifting water pump is connected with the outlet of the upper tower lifting water pool, the inlet of the bypass filter is connected with the outlet of the upper tower lifting water pump, and the outlet of the bypass filter is connected with the inlet of the cooling subsystem.
In one embodiment, the upper tower lift pond is provided with a second level sensor.
In one embodiment, the level of the cooling subsystem is higher than the level of the circulating water subsystem, and the level of the second user equipment group is higher than the level of the upper tower-side filter subsystem.
In one embodiment, the first user equipment group is medium-pressure water equipment, the water supply pressure at the inlet of the medium-pressure water equipment is greater than or equal to 0.5MPa, and the water return pressure at the outlet of the medium-pressure water equipment is greater than or equal to 0.35 MPa; the second user equipment group is normal pressure water equipment, the water supply pressure of an inlet of the normal pressure water equipment is greater than or equal to 0.25MPa, and the return water of an outlet of the normal pressure water equipment is non-pressure return water.
In one embodiment, the cooling subsystem is a mechanical draft cooling tower stack.
In one embodiment, a plurality of the subsystems and the equipment sets are connected through pipelines, and a detector is arranged on each connecting pipeline; the detector is one or a combination of a flow detector, a pressure detector, an oxidation-reduction potential detector, a PH detector and a turbidity detector.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. in this embodiment of the application, the first user equipment group and the second user equipment group are respectively connected to different outlets of the circulating water subsystem, that is, a first outlet of the circulating water subsystem is connected to an inlet of the first user equipment group, and a second outlet of the circulating water subsystem is connected to an inlet of the second user equipment group. Therefore, circulating water with different pressures of the first user equipment group and the second user equipment group can be respectively supplied according to the water consumption characteristics and the water pressure requirement of users.
2. In the embodiment of the application, the circulating water treatment system is added with an upper tower side filter subsystem, and the traditional upper tower lifting system and the side filter system are combined. The side-filtration filter pump group, the auxiliary pipeline and the control system can be eliminated, and further, the construction investment and the operation cost are effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a first structural diagram of a circulating water cooling treatment system in an embodiment of the present application;
fig. 2 is a second structural diagram of a circulating water cooling treatment system in the embodiment of the present application.
Detailed Description
The embodiment of the application solves the technical problems of difficult water volume adjustment of multiple users, complex pipelines and high construction cost in the prior art by providing the circulating water cooling treatment system, and achieves the technical effects of reducing energy consumption, improving operation efficiency and saving construction cost.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
a circulating water cooling treatment system comprising:
the system comprises a cooling subsystem, a circulating water subsystem, a first user equipment group, a second user equipment group and an upper tower side filter subsystem;
the outlet of the cooling subsystem is connected with the inlet of the circulating water subsystem so as to enable circulating return water cooled by the cooling subsystem to flow into the circulating water subsystem; a first outlet of the circulating water subsystem is connected with an inlet of the first user equipment group, and a second outlet of the circulating water subsystem is connected with an inlet of the second user equipment group so as to respectively supply circulating water with different pressures to the first user equipment group and the second user equipment group; an outlet of the first user equipment group is connected with an inlet of the cooling subsystem so as to circulate the first user equipment group with return water to flow into the cooling subsystem for cooling; the outlet of the second user group is connected with the inlet of the upper tower side filter subsystem, so that the second user equipment group circularly returns water to flow into the upper tower side filter subsystem for filtering and impurity removal; and an outlet of the upper tower side filter subsystem is connected with an inlet of the cooling subsystem so as to enable the filtered and impurity-removed circulating return water to flow into the cooling subsystem for cooling.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
As shown in fig. 1 and 2, the present embodiment provides a circulating water cooling treatment system, including:
the system comprises a cooling subsystem 100, a circulating water subsystem 200, a first user equipment group 300, a second user equipment group 400 and an upper tower side filter subsystem 500;
the outlet of the cooling subsystem 100 is connected with the inlet of the circulating water subsystem 200, so that the circulating return water cooled by the cooling subsystem 100 flows into the circulating water subsystem 200; a first outlet of the circulating water subsystem 200 is connected with an inlet of the first user equipment group 300, and a second outlet of the circulating water subsystem 200 is connected with an inlet of the second user equipment group 400, so as to respectively supply circulating water with different pressures to the first user equipment group 300 and the second user equipment group 400; the outlet of the first user equipment group 300 is connected with the inlet of the cooling subsystem 100, so that the first user equipment group 300 circulates the return water to flow into the cooling subsystem 100 for cooling; the outlet of the second user group is connected with the inlet of the upper tower side filter subsystem 500, so that the second user equipment group 400 circularly returns water to flow into the upper tower side filter subsystem 500 for filtering and impurity removal; the outlet of the upper tower side filter subsystem 500 is connected with the inlet of the cooling subsystem 100, so that the filtered and impurity-removed circulating return water flows into the cooling subsystem 100 for cooling.
Further, the circulating water subsystem 200 includes: a circulating water tank 210, a first circulating water supply pump group 220 and a second circulating water supply pump group 230; inlets of the first and second circulating water supply pump groups 220 and 230 are connected with an outlet of the circulating water tank 210; the outlet of the first circulating water supply pump group 220 is connected to the inlet of the first user equipment group 300, and the outlet of the second circulating water supply pump group 230 is connected to the inlet of the second user equipment group 400.
In a specific implementation process, the first user equipment group 300 is medium-pressure water equipment, the water supply pressure at the inlet of the medium-pressure water equipment is greater than or equal to 0.5MPa, and the water return pressure at the outlet of the medium-pressure water equipment is greater than or equal to 0.35 MPa. Specifically, the medium-pressure water utilization equipment can be cooling water equipment such as a ring cooling machine of a pellet production line, and the first circulating water supply pump group 220 is a circulating water supply pump group of the ring cooling machine. The circulating water supply pump set of the circular cooler pressurizes and supplies circulating water (not higher than 33 ℃) in a circulating water tank 210 to a water point for cooling water equipment such as the circular cooler of a pellet production line, the water supply pressure is 0.50MPa, and the circulating water (not higher than 43 ℃). And then, the circulating return water flows into the cooling subsystem 100 for cooling by utilizing the excess pressure, and the cooled circulating return water (not higher than 33 ℃) flows into a circulating water tank 210 by gravity and is pressurized and recycled by a circulating water supply pump set of the circular cooler.
The whole pipeline system is provided with an automatic instrument and a control valve and monitors the data of the instrument on line. Wherein, the on-line monitoring mainly comprises the parameters of the flow, the temperature, the pressure, the oxidation-reduction potential, the pH and the turbidity of the circulating water supply network, the liquid level of the circulating water tank 210 and the like. Specifically, a first liquid level sensor may be disposed in the circulation tank 210. Further, the opening condition of the electric refill valve in the circulation water tank 210 may be determined based on the liquid level of the circulation water tank 210. For example, if the liquid level of the circulating water tank 210 is less than or equal to the first threshold, the electric water replenishing valve is opened to replenish water to the circulating water tank 210. And if the liquid level of the circulating water tank 210 is less than or equal to the second threshold value, closing the electric water replenishing valve.
In addition, the circulating water cooling treatment system further comprises: the dosing device 600, the dosing device 600 is connected with the dosing port of the circulating water tank 210. The subsystems and the equipment groups are connected through pipelines, and a detector is arranged on the connecting pipeline; the detector is one or a combination of a plurality of flow detectors, pressure detectors, oxidation-reduction potential detectors, PH detectors and turbidity detectors, and the dosing metering of the dosing device 600 can be determined based on the oxidation-reduction potential, the pH and the turbidity of the circulating water supply pipe network.
Further, the upper bypass filter subsystem 500 includes: an upper tower lift water tank 510, an upper tower lift water pump 520 and a side filter 530; the inlet of the upper tower lift water tank 510 is connected to the outlet of the second user equipment group 400, the inlet of the upper tower lift water pump 520 is connected to the outlet of the upper tower lift water tank 510, the inlet of the bypass filter 530 is connected to the outlet of the upper tower lift water pump 520, and the outlet of the bypass filter 530 is connected to the inlet of the cooling subsystem 100.
In a specific implementation process, the second user equipment group 400 is normal pressure water equipment, the water supply pressure at the inlet of the normal pressure water equipment is greater than or equal to 0.25MPa, and the return water at the outlet of the normal pressure water equipment is non-pressure return water. Specifically, the method comprises the following steps. Specifically, the common pressure water equipment may be open cooling water equipment such as a grate of a pellet production line, and the second circulating water supply pump group 230 is a circulating water supply pump group of the grate. The outlet of the circulating water supply pump pipeline of the chain grate is connected with the inlet of the pipeline of the open cooling water equipment such as the chain grate of the pellet production line, and the outlet of the pipeline of the open cooling water equipment such as the chain grate of the pellet production line is connected with the inlet of the pipeline of the upper tower lifting water tank 510. Further, the upper tower lift pump set pressurizes the upper tower lift water tank 510 with the pressure not higher than 43 deg.c and sends it to the side filtering filter 530, and the water supply pressure is 0.25 MPa. The effluent of the side filter 530 enters the cooling subsystem 100 for cooling by using excess pressure, flows into the circulating water tank 210 by gravity after being cooled (not higher than 33 ℃), and is pressurized and recycled by a pump set.
Wherein, the filter includes filter body, full automatic control system, valve group, instrument and connecting tube etc.. The filter adopts quartz sand filter material, the filter material gradation is 0.2mm-8mm, and the effluent suspended solid is no more than 5mg/L, effectively removes the suspended solid, and improves the water treatment amount of the side filtration from 2-5% of the total water circulation amount to 20-30%.
Of course, the upper tower side filter subsystem 500 is also equipped with automated instrumentation and valves and monitors the data of the instrumentation on-line. Specifically, the upper tower lift water tank 510 is provided with a second level sensor. Flow meters and pressure gauges are arranged on connecting pipelines among the upper tower lifting water tank 510, the upper tower lifting water pump 520 and the bypass filter 530. And the detection values of the sensors can be uploaded to a monitoring system in real time, so that a person can adjust the working state of the pump and the opening of the valve conveniently.
Further, the cooling subsystem 100 is at a higher level than the circulating water subsystem 200, which is beneficial for gravity flow of the circulating water back into the circulating water tank 210. The level of the second group of user equipment 400 is higher than the level of the upper tower bypass filter sub-system 500, which is beneficial for utilizing excess pressure to flow the circulating return water in the bypass filter 530 into the cooling sub-system 100. Therefore, the use of the pump set can be reduced, and the effects of improving the operation efficiency, saving energy and reducing emission are achieved.
In particular implementations, the cooling subsystem 100 is a mechanical draft cooling tower stack 110. The cooling tower set is arranged on the upper part of the concrete pool, adopts a square countercurrent glass fiber reinforced plastic cooling tower and consists of an axial flow fan, a glass fiber reinforced plastic apron plate, a water distribution device, a water spraying filler, a water collecting disc, an air inlet shutter and the like. The cooled water flows back into the circulating water tank 210 by gravity.
In addition, in order to ensure the stable quality of the circulating water and avoid the corrosion, scaling and heat exchange rate reduction of heat exchange equipment caused by the deterioration of the water quality, a sewage discharge pipeline is arranged on a water outlet pipeline of the cooling tower group, and the part of sewage and backwashing drainage of the filter can be used for low-grade water quality users 700 or can be discharged into a pipe network for unified treatment and then recycled.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. in this embodiment of the application, the first user equipment group and the second user equipment group are respectively connected to different outlets of the circulating water subsystem, that is, a first outlet of the circulating water subsystem is connected to an inlet of the first user equipment group, and a second outlet of the circulating water subsystem is connected to an inlet of the second user equipment group. Therefore, circulating water with different pressures of the first user equipment group and the second user equipment group can be respectively supplied according to the water consumption characteristics and the water pressure requirement of users.
2. In the embodiment of the application, the circulating water treatment system is added with an upper tower side filter subsystem, and the traditional upper tower lifting system and the side filter system are combined. The side-filtration filter pump group, the auxiliary pipeline and the control system can be eliminated, and further, the construction investment and the operation cost are effectively reduced.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A circulating water cooling treatment system, comprising:
the system comprises a cooling subsystem, a circulating water subsystem, a first user equipment group, a second user equipment group and an upper tower side filter subsystem;
the outlet of the cooling subsystem is connected with the inlet of the circulating water subsystem so as to enable circulating return water cooled by the cooling subsystem to flow into the circulating water subsystem; a first outlet of the circulating water subsystem is connected with an inlet of the first user equipment group, and a second outlet of the circulating water subsystem is connected with an inlet of the second user equipment group so as to respectively supply circulating water with different pressures to the first user equipment group and the second user equipment group; an outlet of the first user equipment group is connected with an inlet of the cooling subsystem so as to circulate the first user equipment group with return water to flow into the cooling subsystem for cooling; the outlet of the second user group is connected with the inlet of the upper tower side filter subsystem, so that the second user equipment group circularly returns water to flow into the upper tower side filter subsystem for filtering and impurity removal; and an outlet of the upper tower side filter subsystem is connected with an inlet of the cooling subsystem so as to enable the filtered and impurity-removed circulating return water to flow into the cooling subsystem for cooling.
2. The circulating water cooling treatment system of claim 1, comprising:
the circulating water subsystem includes: the system comprises a circulating water tank, a first circulating water supply pump set and a second circulating water supply pump set;
inlets of the first circulating water supply pump group and the second circulating water supply pump group are connected with an outlet of the circulating water pool; and the outlet of the first circulating water supply pump group is connected with the inlet of the first user equipment group, and the outlet of the second circulating water supply pump group is connected with the inlet of the second user equipment group.
3. The circulating water cooling treatment system of claim 2, wherein a first level sensor is provided in the circulating water tank.
4. The circulating water cooling treatment system of claim 2, further comprising:
and the dosing device is connected with a dosing port of the circulating water tank.
5. The circulating water cooling treatment system of claim 1, comprising:
the upper tower bypass filter subsystem comprises: an upper tower lifting water pool, an upper tower lifting water pump and a side filtration filter;
the inlet of the upper tower lifting water pool is connected with the outlet of the second user equipment group, the inlet of the upper tower lifting water pump is connected with the outlet of the upper tower lifting water pool, the inlet of the bypass filter is connected with the outlet of the upper tower lifting water pump, and the outlet of the bypass filter is connected with the inlet of the cooling subsystem.
6. The circulating water cooling treatment system of claim 5, wherein the upper tower lift pond is provided with a second level sensor.
7. The circulating water cooling treatment system of claim 1, comprising:
the horizontal height of the cooling subsystem is higher than that of the circulating water subsystem, and the horizontal height of the second user equipment group is higher than that of the upper tower side filter subsystem.
8. The circulating water cooling treatment system of claim 1, comprising:
the first user equipment group is medium-pressure water equipment, the water supply pressure of an inlet of the medium-pressure water equipment is greater than or equal to 0.5MPa, and the water return pressure of an outlet of the medium-pressure water equipment is greater than or equal to 0.35 MPa;
the second user equipment group is normal pressure water equipment, the water supply pressure of an inlet of the normal pressure water equipment is greater than or equal to 0.25MPa, and the return water of an outlet of the normal pressure water equipment is non-pressure return water.
9. The circulating water cooling treatment system of claim 1, wherein the cooling subsystem is a mechanical draft cooling tower bank.
10. The circulating water cooling treatment system of claim 1, comprising:
the subsystems and the equipment groups are connected through pipelines, and the pipelines are provided with detectors;
the detector is one or a combination of a flow detector, a pressure detector, an oxidation-reduction potential detector, a PH detector and a turbidity detector.
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| CN202121587284.0U CN216245111U (en) | 2021-07-13 | 2021-07-13 | Circulating water cooling treatment system |
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| CN202121587284.0U CN216245111U (en) | 2021-07-13 | 2021-07-13 | Circulating water cooling treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551481A (en) * | 2021-07-13 | 2021-10-26 | 北京首钢国际工程技术有限公司 | Circulating water cooling treatment system and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551481A (en) * | 2021-07-13 | 2021-10-26 | 北京首钢国际工程技术有限公司 | Circulating water cooling treatment system and control method |
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