CN211316701U - Closed water cooling system - Google Patents
Closed water cooling system Download PDFInfo
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- CN211316701U CN211316701U CN201922157778.4U CN201922157778U CN211316701U CN 211316701 U CN211316701 U CN 211316701U CN 201922157778 U CN201922157778 U CN 201922157778U CN 211316701 U CN211316701 U CN 211316701U
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Abstract
The utility model belongs to the technical field of water cooling, in particular to a closed water cooling system, which comprises an operation structure, a standby structure, a frozen water structure and a control structure; the standby structure can be started to supply water to the closed water user when the operation structure fails; and when the water temperature continuously rises to a set value, the freezing water structure is used for cooling the operation structure and the closed water user, so that the operation safety of the unit is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the water cooling, concretely relates to closed water cooling system.
Background
The users of closed water used in the thermal power station in the prior art, namely closed circulating demineralized water, used as a cooling medium include a turbonator hydrogen cooler, a turbonator internal cooling water cooler, a sealing water cooler of various water pumps on the side of a steam turbine, a water-air cooler of various water pump motors on the side of the steam turbine, a bearing cooler, a small main oil pump bearing cooler, a vacuum pump working sealing water cooler, a steam turbine catclaw cooler, a high-pressure main throttle cooler, a medium-pressure combined throttle cooler, a blower motor water-air cooler, a control oil station cooler, a primary fan motor water-air cooler, a lubricating and control oil station cooler, a draught fan motor water-air cooler, a lubricating and control oil station cooler, an air preheater bearing oil cooler, a hydrogen generation station cooler, a chemical sampling frame cooler, a coal grinding bearing oil cooler, a start-furnace water circulating pump cooler and the like, closed water is an important condition for ensuring the safe operation of the main engine and the auxiliary engine of the thermal power station. The heat carried by the hot closed water is taken away by the open circulating water in the closed water cooler.
The existing closed water needs to be operated all the time to ensure the operation safety of unit equipment, however, when the closed water fails, the water temperature in the closed water system cannot be reduced, and the maintenance of the closed water system usually needs to stop the closed water system to process the water, so that the operation safety of the unit cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a closed water cooling system.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a closed water cooling system comprises an operation structure, a standby structure, a chilled water structure and a control structure.
The operation structure comprises a closed water heat exchanger, a plate heat exchanger, a closed water pump, an operation pump and a closed water user;
the closed water heat exchanger is provided with a hollow cavity, and a heat exchange tube is arranged in the hollow cavity;
one end of the plate heat exchanger is connected with the hollow cavity of the closed water heat exchanger, and the other end of the plate heat exchanger is connected with the closed water pump;
one end of the closed water pump is connected with the hollow cavity of the closed water heat exchanger, and the other end of the closed water pump is connected with the plate heat exchanger;
one end of the operation pump is connected with a closed water user, and the other end of the operation pump is connected with one end of the heat exchange pipe;
one end of the closed water user is connected with the running pump, and the other end of the closed water user is connected with one end of the heat exchange pipe;
the standby structure comprises a standby water pool, a standby pump and a check valve;
one end of the standby water pool is connected with the standby pump, and the other end of the standby water pool is connected with the closed water pump;
one end of the standby pump is connected with the standby water pool, and the other end of the standby pump is connected with the closed water user;
the standby water pool is connected with a closed water user.
The chilled water structure comprises a water cooler, a water cooling tank and a water cooling pump;
one end of the water cooler is connected with the hollow cavity, and the other end of the water cooler is connected with the cold water pool;
one end of the cold water pump is connected with the cold water tank, and the other end of the cold water pump is connected with the hollow cavity;
the control structure comprises a controller, a cold water inlet electric door, a cold water outlet electric door, a temperature sensor and a standby electric door;
the controller is respectively connected with the cold water inlet electric door, the cold water outlet electric door, the temperature sensor, the standby electric door, the closed water pump, the running pump and the standby pump;
the cold water inlet electric door is arranged on a pipeline between the cold water pump and the hollow cavity;
the cold water outlet electric door is arranged on a pipeline between the water cooler and the hollow cavity;
the temperature sensor is arranged on the closed water heat exchanger;
the standby electric valve is arranged between the check valve and the running pump.
Since the technical scheme is used, the utility model discloses following beneficial effect has: a closed water cooling system can start a standby structure to supply water to a closed water user when an operation structure fails; and when the water temperature continuously rises to a set value, the freezing water structure is used for cooling the operation structure and the closed water user, so that the operation safety of the unit is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a closed water cooling system of the present invention.
Fig. 2 is a schematic structural diagram of a control structure of the closed water cooling system of the present invention.
The reference numbers illustrate:
| operating structure 1 | |
Chilled water structure 3 |
| Control structure 4 | Closed |
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| Closed |
Operating the |
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| Cold water inlet |
Cold water outlet electrically operated |
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| Backup |
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The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions in the present application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B", including either scheme A, or scheme B, or schemes in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 2, the utility model provides a closed water cooling system, including operation structure 1, standby structure 2, refrigerated water structure 3, control structure 4.
The operation structure 1 comprises a closed water heat exchanger 11, a plate heat exchanger 12, a closed water pump 13, an operation pump 14 and a closed water user 15;
the closed water heat exchanger 11 is provided with a hollow cavity 111, and a heat exchange tube 112 is arranged in the hollow cavity 111;
one end of the plate heat exchanger 12 is connected with the hollow cavity 111 of the closed water heat exchanger 11, and the other end is connected with the closed water pump 13;
one end of the closed water pump 13 is connected with the hollow cavity 111 of the closed water heat exchanger 11, and the other end is connected with the plate heat exchanger 12;
one end of the operation pump 14 is connected with the closed water user 15, and the other end is connected with one end of the heat exchange pipe 112;
one end of the closed water user 15 is connected with the operation pump 14, and the other end is connected with one end of the heat exchange pipe 112;
the standby structure 2 comprises a standby water pool 21, a standby pump 22 and a check valve 23;
one end of the standby water pool 21 is connected with the standby pump 22, and the other end is connected with the closed water pump 13;
one end of the standby pump 22 is connected with the standby water pool 21, and the other end is connected with the closed water user 15;
the standby water basin 21 is connected to the closed water users 15.
The chilled water structure 3 comprises a water cooler 31, a cold water pool 32 and a cold water pump 33;
one end of the water cooler 31 is connected with the hollow cavity 111, and the other end is connected with the cold water pool 32;
one end of a cold water pump 33 is connected with the cold water tank 32, and the other end is connected with the hollow cavity 111;
the control structure 4 comprises a controller 40, a cold water inlet electric door 41, a cold water outlet electric door 42, a temperature sensor 43 and a standby electric door 44;
the controller 40 is respectively connected with the cold water inlet electric door 41, the cold water outlet electric door 42, the temperature sensor 43, the standby electric door 44, the closed water pump 13, the running pump 14 and the standby pump 22;
the cold water inlet electric door 41 is arranged on a pipeline between the cold water pump 33 and the hollow cavity 111;
the cold water outlet electric door 42 is arranged on a pipeline between the water chiller 31 and the hollow cavity 111;
the temperature sensor 43 is arranged on the closed water heat exchanger 11;
a backup power gate 44 is provided between the check valve 23 and the running pump 14.
The utility model relates to a closed water cooling system, the hollow cavity 111 is provided with water in the normal operating, controller 40 control operation pump 14 starts, operation pump 14 carries the closed water in the heat exchange tube 112 to for closed water user 15 and cools down the use, closed water after the user 15 of closed water used up continues to flow back to the heat exchange tube 112, the water in the heat exchange tube 112 is cooled down by the water in the hollow cavity 111; the controller 40 controls the closed water pump 13 to start, and water in the hollow cavity 111 is conveyed to the plate heat exchanger 12 to be cooled and then enters the hollow cavity 111 again to cool water in the heat exchange pipe 112;
when the closed water system needs to be in fault or to be overhauled, the controller 40 controls the standby electric door 44 to be opened, and the standby pump 22 is started to transfer the water at the outlet of the operating pump 14 to the standby water pool 21; after the standby pump 22 conveys water in the standby water pool 21 to the closed water user 15 for use, the water continuously flows into the standby water pool 21, and the check valve 23 prevents the water from flowing backwards into the running pump 14;
the temperature sensor 43 is arranged on the closed water heat exchanger 11 and used for monitoring the water temperature in the hollow cavity 111, and when the water temperature in the hollow cavity 111 continuously rises to a set value, the controller 40 controls the cold water inlet electric door 41 and the cold water outlet electric door 42 to be opened, and simultaneously starts the cold water machine 31 and the cold water pump 33; the cold water pump 33 pumps cold water generated by the water chiller 31 into the cold water tank 32, and then the cold water tank 32 enters the hollow cavity 111 to cool water in the heat exchange tube 112, so that the temperature of the water in the heat exchange tube 112 can be rapidly reduced, and the operation safety of unit equipment is guaranteed.
In this embodiment, the closed water users 15 are devices in the steam turbine, the boiler and the generator of the thermal power plant, which need closed water for cooling.
In this embodiment, the controller 40 is a PLC controller.
The water cooler 31 is a water-cooled water cooler in this embodiment.
The heat exchange tube 112 in this embodiment is a serpentine tube that meanders within the hollow cavity 111.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. A closed water cooling system is characterized by comprising an operation structure, a standby structure, a chilled water structure and a control structure;
the operation structure comprises a closed water heat exchanger, a plate heat exchanger, a closed water pump, an operation pump and a closed water user;
the closed water heat exchanger is provided with a hollow cavity, and a heat exchange tube is arranged in the hollow cavity;
one end of the plate heat exchanger is connected with the hollow cavity of the closed water heat exchanger, and the other end of the plate heat exchanger is connected with the closed water pump;
one end of the closed water pump is connected with the hollow cavity of the closed water heat exchanger, and the other end of the closed water pump is connected with the plate heat exchanger;
one end of the operation pump is connected with a closed water user, and the other end of the operation pump is connected with one end of the heat exchange pipe;
one end of the closed water user is connected with the running pump, and the other end of the closed water user is connected with one end of the heat exchange pipe;
the standby structure comprises a standby water pool, a standby pump and a check valve;
one end of the standby water pool is connected with the standby pump, and the other end of the standby water pool is connected with the closed water pump;
one end of the standby pump is connected with the standby water pool, and the other end of the standby pump is connected with the closed water user;
the standby water pool is connected with a closed water user;
the chilled water structure comprises a water cooler, a water cooling tank and a water cooling pump;
one end of the water cooler is connected with the hollow cavity, and the other end of the water cooler is connected with the cold water pool;
one end of the cold water pump is connected with the cold water tank, and the other end of the cold water pump is connected with the hollow cavity;
the control structure comprises a controller, a cold water inlet electric door, a cold water outlet electric door, a temperature sensor and a standby electric door;
the controller is respectively connected with the cold water inlet electric door, the cold water outlet electric door, the temperature sensor, the standby electric door, the closed water pump, the running pump and the standby pump;
the cold water inlet electric door is arranged on a pipeline between the cold water pump and the hollow cavity;
the cold water outlet electric door is arranged on a pipeline between the water cooler and the hollow cavity;
the temperature sensor is arranged on the closed water heat exchanger;
the standby electric valve is arranged between the check valve and the running pump.
2. The closed water cooling system according to claim 1, wherein the controller is a PLC controller.
3. The closed water cooling system according to claim 2, wherein the water chiller is a water-cooled water chiller.
4. A closed water cooling system according to claim 3, wherein the heat exchange tube is a serpentine tube that meanders within the hollow cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157778.4U CN211316701U (en) | 2019-12-05 | 2019-12-05 | Closed water cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157778.4U CN211316701U (en) | 2019-12-05 | 2019-12-05 | Closed water cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211316701U true CN211316701U (en) | 2020-08-21 |
Family
ID=72067495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922157778.4U Active CN211316701U (en) | 2019-12-05 | 2019-12-05 | Closed water cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211316701U (en) |
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2019
- 2019-12-05 CN CN201922157778.4U patent/CN211316701U/en active Active
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