CN217686842U - Closed cooler online cleaning system suitable for thermal power plant - Google Patents
Closed cooler online cleaning system suitable for thermal power plant Download PDFInfo
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- CN217686842U CN217686842U CN202221026229.9U CN202221026229U CN217686842U CN 217686842 U CN217686842 U CN 217686842U CN 202221026229 U CN202221026229 U CN 202221026229U CN 217686842 U CN217686842 U CN 217686842U
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Abstract
The utility model discloses a close cold ware on-line cleaning system suitable for thermal power plant relates to general mechanical equipment technical field. The system includes a circulation unit, a cleaning unit, and a monitoring unit. The utility model discloses beneficial effect: the titanium pipe in the closed cooler is cleaned on line, so that the heat exchange efficiency of the closed cooler is improved, the temperature of a main pipe of the closed cooler is reduced, and the economical efficiency of a thermal power plant unit is improved; the scaling of the titanium pipe in the closed cooler is avoided, and the blocking probability of the titanium pipe in the closed cooler is reduced; a differential pressure transmitter is added, and faults are monitored on line in real time so as to be processed quickly; the original equipment and the structural foundation are improved, and the newly arranged equipment is simple and convenient to install and maintain.
Description
Technical Field
The utility model relates to a general mechanical equipment technical field especially relates to a close cold ware on-line cleaning system suitable for thermal power plant.
Background
At present, some closed circulating cooling water systems of thermal power plants adopt circulating water as a cooling medium, and are provided with two closed cooling water pumps and two closed circulating cooling water heat exchangers. Under normal conditions, one set of closed circulation cooling water heat exchanger operates for standby, and when the water temperature is high in summer, two sets of closed circulation cooling water heat exchangers operate simultaneously. The heat transfer pipe of the closed circulation cooling water heat exchanger adopts a titanium pipe to prevent seawater corrosion. The circulating water side of the closed circulating cooling water heat exchanger adopts open circulating water to supply water for cooling, and the problems are as follows:
at the present stage, a thermal power plant runs for a long period, so that the reliability and the economy of a cold sealing device system used as blood of the thermal power plant are more important, and the cold sealing device is high in isolation and scale removal difficulty and high in risk during running; the closed circulating cooling water heat exchanger (closed cooler for short) adopts circulating water as a cooling working medium, the circulating water is dirty in quality, although an electric water filter is arranged, the circulating water can only block part of larger garbage sundries, and in long-period operation, dirt is formed on a titanium pipe in the cooler inevitably, even the titanium pipe pipeline is blocked, so that the heat exchange efficiency of the heat exchanger is influenced; the titanium pipe of the closed circulation cooling water heat exchanger is blocked due to scaling, and is difficult to find in the first time in operation, because the non-pressure difference is monitored, when the blockage is obvious or two sides are required to operate simultaneously in summer, the titanium pipe is isolated, and the great influence is generated on the output of a unit and the safe operation of the unit.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the prior art.
Therefore, the utility model aims to solve the problem that the titanium pipe on the circulating water side of the closed cooler runs for a long time to cause the scaling blockage to be difficult to clean and lack the pressure difference to monitor and can not find the fault in time.
In order to solve the technical problem, the utility model provides a following technical scheme: a closed cooler online cleaning system suitable for a thermal power plant comprises a circulating unit, a cleaning unit and a monitoring unit; the circulating unit comprises a water supply pipeline, a closed cooler branch and a condenser branch which are respectively connected with the output ends of the water supply pipeline, and a water return pipeline connected with the output ends of the closed cooler branch and the condenser branch; the cleaning unit is respectively connected with the closed cooler branch and the condenser branch and comprises a driving pipeline, and the driving pipeline is respectively connected with the closed cooler cleaning loop and the condenser cleaning loop through a three-way valve; and the monitoring unit is connected with the closed cooler cleaning loop and comprises a differential pressure transmitter and a rubber ball cleaning control cabinet.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: and two parallel circulating water pumps are arranged on the water supply pipeline.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: and the closed cooler branch is provided with an electric water filter, the input end of the electric water filter is connected with the water supply pipeline, and the output end of the electric water filter is connected with two closed coolers which are connected in parallel.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: and the condenser branch sequentially flows through the low-pressure condenser and the high-pressure condenser.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: the output end of the water return pipeline is connected with the siphon well.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: the driving pipeline is provided with a rubber ball pump, the output end of the rubber ball pump is connected with the input end of a ball collector, and the output end of the ball collector is connected with the input end of the three-way valve.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: the closed cooler cleaning loop comprises a first rubber ball ejector, the input end of the first rubber ball ejector is connected with the output end of the three-way valve, the output end of the first rubber ball ejector is connected with the input end of a first ball collecting net through a closed cooler titanium pipe, and the output end of the first ball collecting net is connected with the input end of a rubber ball pump.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: the condenser cleaning circuit comprises a second rubber ball injector, the input end of the second rubber ball injector is connected with the other output end of the three-way valve, the output end of the second rubber ball injector is connected with the input end of a second ball collecting net through a low-pressure condenser and a high-pressure condenser titanium pipe in sequence, and the output end of the second ball collecting net is connected with the input end of the rubber ball pump.
As a closed cooler on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: the pressure difference transmitter is connected with the first ball collecting net through a measuring circuit and is connected with the rubber ball cleaning control cabinet through a transmission circuit.
As a closed cold ware on-line cleaning system's an preferred scheme suitable for thermal power plant, wherein: the rubber ball cleaning control cabinet is connected with the first ball collecting net through a control circuit.
The utility model discloses beneficial effect does:
the utility model discloses make the titanium pipe in the cold trap obtain online cleaning, be favorable to improving cold trap heat exchange efficiency, reduce cold trap mother's pipe temperature, improved the economic nature of thermal power plant's unit; the scaling of the titanium pipe in the closed cooler is avoided, and the blocking probability of the titanium pipe in the closed cooler is reduced; a differential pressure transmitter is added, and faults are monitored on line in real time so as to be processed quickly; the original equipment and the structural foundation are improved, and the newly arranged equipment is simple and convenient to install and maintain.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a schematic view of an integral connection component of an on-line closed cooler cleaning system suitable for a thermal power plant according to the present invention;
fig. 2 is a schematic flow chart of the operation process of the closed cooler online cleaning system suitable for the thermal power plant of the present invention;
fig. 3 is a schematic view of the first pressure difference control of the first ball collecting net of the closed cooler online cleaning system applicable to the thermal power plant of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides a closed cooler online cleaning system suitable for a thermal power plant, which includes a circulation unit 100, a cleaning unit 200, and a monitoring unit 300; the circulating unit 100 comprises a water supply pipeline 101, a closed cooler branch 102 and a condenser branch 103 which are respectively connected with the output end of the water supply pipeline 101, and a water return pipeline 104 connected with the output ends of the closed cooler branch 102 and the condenser branch 103; the cleaning unit 200 is respectively connected with the closed cooler branch 102 and the condenser branch 103 and comprises a driving pipeline 201, and the driving pipeline 201 is respectively connected with a closed cooler cleaning loop 203 and a condenser cleaning loop 204 through a three-way valve 202; and the monitoring unit 300 is connected with the closed cooler cleaning loop 203 and comprises a differential pressure transmitter 301 and a rubber ball cleaning control cabinet 302.
Two circulating water pumps 101a connected in parallel are provided in the water supply line 101.
An electric water filter 102a is arranged on the cold-closed branch 102, the input end of the electric water filter 102a is connected with the water supply pipeline 101, and the output end is connected with two cold-closed devices which are connected in parallel.
The condenser branch 103 sequentially flows through a low-pressure condenser and a high-pressure condenser.
The output end of the water return pipeline 104 is connected with the siphon well.
The circulating water provides cold sources for the condenser and the closed cooler and takes away the steam which normally does work and the heat of other equipment loads. The circulating water is powered by the circulating water pump 101a, and under normal conditions, one circulating water pump 101a is used for standby, and is switched periodically or is automatically started when one circulating water pump fails. In high-temperature seasons in summer, the load of the unit is increased, the situation that the two closed coolers operate simultaneously also exists, and at the moment, the two circulating water pumps 101a operate simultaneously.
Circulating water is pumped out from a circulating water pump 101a of a water supply pipeline 101 and divided into two paths, wherein one path of the circulating water enters a closed cooler branch 102, the other path of the circulating water enters a condenser branch 103, and after the circulating water enters the closed cooler branch 102, the circulating water firstly passes through an electric water filter 102a to filter out larger impurities in the water and then enters two closed cooler A/B circulating water titanium pipes which are connected in parallel; after entering the condenser branch 103, the circulating water is also divided into two paths A/B, one path is normally operated, the other path is reserved, the circulating water sequentially passes through a low-pressure condenser titanium pipe and a high-pressure condenser titanium pipe, is cooled, then is converged with the circulating water of the cold-closed branch 102, flows into the water return pipeline 104 again, and finally flows into a siphon well, and the whole circulating flow is completed.
Example 2
Referring to fig. 1 and 2, a second embodiment of the present invention, which is different from the first embodiment, is: the driving pipeline 201 is provided with a rubber ball pump 201a, the output end of the rubber ball pump 201a is connected with the input end of a ball collector 201b, and the output end of the ball collector 201b is connected with the input end of a three-way valve 202.
The closed cooler cleaning loop 203 comprises a first glue ball injector 203a, the input end of the first glue ball injector 203a is connected with one output end of the three-way valve 202, the output end of the first glue ball injector 203a is connected with the input end of a first ball collecting net 203b through a closed cooler titanium pipe, and the output end of the first ball collecting net 203b is connected with the input end of a glue ball pump 201 a.
The condenser cleaning circuit 204 comprises a second glue ball injector 204a, the input end of the second glue ball injector 204a is connected with the other output end of the three-way valve 202, the output end of the second glue ball injector 204a is connected with the input end of a second ball collecting net 204b through a low-pressure condenser and a high-pressure condenser titanium pipe in sequence, and the output end of the second ball collecting net 204b is connected with the input end of the glue ball pump 201 a.
Due to long-term operation, impurities of the circulating water can be attached to the titanium tube of the closed cooler, so that scaling is formed to influence the heat exchange efficiency. The original titanium pipe of the condenser is provided with a rubber ball cleaning device, and the titanium pipe of the closed cooler has no cleaning measure.
The rubber ball pump 201a on the driving pipeline 201 provides the power for cleaning the rubber balls, and the closed cooler cleaning loop 203 and the condenser cleaning loop 204 share the rubber ball pump 201a and the ball collector 201b on the driving pipeline 201.
Circulating water is pumped out from the output end of the glue ball pump 201a and is sent to the input end of the three-way valve through the ball collector 201b, one way of the output end of the three-way valve enters the closed cooler cleaning loop 203, the glue balls need to pass through the first glue ball injector 203a, enter the closed cooler titanium pipe to be cleaned and remove impurities attached to the closed cooler titanium pipe, and then enter the first ball collecting net 203b to ensure that the glue balls cannot enter the water return pipeline 104 along with the circulating water, and part of the circulating water flows back from the output end of the first ball collecting net 203b to the output end of the glue ball pump 201a, so that the closed cooler cleaning process is completed.
The condenser cleaning process is similar to the above process, and only the three-way valve needs to be switched, and circulating water is pumped into the other path of the output end of the three-way valve. Specifically, the circulating water is pumped out from the output end of the glue ball pump 201a, and is fed into the input end of the three-way valve through the ball collector 201b, the other path of the output end of the three-way valve enters the condenser cleaning loop 204, and needs to first pass through the second glue ball injector 204a, the glue balls enter the titanium pipe of the condenser, and are cleaned to remove impurities attached to the titanium pipe of the condenser, and then enter the second ball collecting net 204b, so that the glue balls are ensured not to enter the water return pipeline 104 along with the circulating water, and part of the circulating water flows back from the output end of the second ball collecting net 204b to the output end of the glue ball pump 201a, thereby completing the condenser cleaning process.
Similarly, two sets of the first glue ball injectors 203a and the first ball collecting net 203b are respectively arranged and correspond to the two closed coolers; two sets of the second glue ball injectors 203a and the second ball receiving nets 204B are also respectively arranged, correspond to two paths A/B of circulating water of the condenser and are switched periodically.
Example 3
Referring to fig. 3, a third embodiment of the present invention is different from the first two embodiments: differential pressure transmitter 301 is connected to first ball receiving net 203b through measurement circuitry 301a and to rubber ball cleaning control cabinet 302 through transmission circuitry 301 b.
The glue ball cleaning control cabinet 302 is connected with the first ball receiving net 203b through the control circuit 302 a.
The differential pressure transmitter 301 monitors the water inlet and outlet differential pressure of the first ball receiving net 203b on line, transmits the differential pressure signal into the rubber ball cleaning control cabinet 302, and realizes the functions of ball receiving and automatic backwashing through the comparison of the actual differential pressure and the setting data.
Also, the differential pressure transmitter 301 is provided with two corresponding to the two first ball receiving nets 203 b.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a cold ware on-line cleaning system closes suitable for thermal power plant which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the circulating unit (100) comprises a water supply pipeline (101), a closed cooler branch (102) and a condenser branch (103) which are respectively connected with the output end of the water supply pipeline (101), and a water return pipeline (104) which is connected with the output ends of the closed cooler branch (102) and the condenser branch (103);
the cleaning unit (200) is respectively connected with the closed cooler branch (102) and the condenser branch (103) and comprises a driving pipeline (201), and the driving pipeline (201) is respectively connected with the closed cooler cleaning loop (203) and the condenser cleaning loop (204) through a three-way valve (202);
and the monitoring unit (300) is connected with the closed cooler cleaning loop (203) and comprises a differential pressure transmitter (301) and a rubber ball cleaning control cabinet (302).
2. The closed cooler online cleaning system suitable for the thermal power plant according to claim 1, characterized in that: and two parallel circulating water pumps (101 a) are arranged on the water supply pipeline (101).
3. The closed cooler online cleaning system suitable for the thermal power plant according to claim 2, characterized in that: and an electric water filter (102 a) is arranged on the cold-closed branch (102), the input end of the electric water filter (102 a) is connected with the water supply pipeline (101), and the output end of the electric water filter is connected with two cold-closed devices which are connected in parallel.
4. The closed cooler online cleaning system suitable for the thermal power plant according to any one of claims 1 to 3, characterized in that: and the condenser branch (103) sequentially flows through the low-pressure condenser and the high-pressure condenser.
5. The closed cooler online cleaning system suitable for the thermal power plant according to claim 4, characterized in that: the output end of the water return pipeline (104) is connected with the siphon well.
6. The closed cooler online cleaning system suitable for the thermal power plant according to any one of claims 1 to 3 and 5, wherein: the driving pipeline (201) is provided with a rubber ball pump (201 a), the output end of the rubber ball pump (201 a) is connected with the input end of a ball collector (201 b), and the output end of the ball collector (201 b) is connected with the input end of a three-way valve (202).
7. The closed cooler online cleaning system suitable for the thermal power plant according to claim 6, characterized in that: the closed cooler cleaning loop (203) comprises a first rubber ball injector (203 a), the input end of the first rubber ball injector (203 a) is connected with the output end of the three-way valve (202), the output end of the first rubber ball injector (203 a) is connected with the input end of a first ball collecting net (203 b) through a closed cooler titanium pipe, and the output end of the first ball collecting net (203 b) is connected with the input end of a rubber ball pump (201 a).
8. The closed cooler online cleaning system suitable for the thermal power plant according to claim 7, characterized in that: the condenser cleaning loop (204) comprises a second rubber ball injector (204 a), the input end of the second rubber ball injector (204 a) is connected with the other output end of the three-way valve (202), the output end of the second rubber ball injector (204 a) is connected with the input end of a second ball collecting net (204 b) through a low-pressure condenser and a high-pressure condenser titanium pipe in sequence, and the output end of the second ball collecting net (204 b) is connected with the input end of the rubber ball pump (201 a).
9. The closed cooler online cleaning system suitable for the thermal power plant according to claim 7 or 8, characterized in that: the differential pressure transmitter (301) is connected with the first ball receiving net (203 b) through a measuring circuit (301 a) and is connected with the rubber ball cleaning control cabinet (302) through a transmission circuit (301 b).
10. The closed cooler online cleaning system suitable for the thermal power plant according to claim 9, characterized in that: the rubber ball cleaning control cabinet (302) is connected with the first ball receiving net (203 b) through a control circuit (302 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221026229.9U CN217686842U (en) | 2022-04-28 | 2022-04-28 | Closed cooler online cleaning system suitable for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221026229.9U CN217686842U (en) | 2022-04-28 | 2022-04-28 | Closed cooler online cleaning system suitable for thermal power plant |
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| Publication Number | Publication Date |
|---|---|
| CN217686842U true CN217686842U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221026229.9U Active CN217686842U (en) | 2022-04-28 | 2022-04-28 | Closed cooler online cleaning system suitable for thermal power plant |
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| CN (1) | CN217686842U (en) |
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