Desalting automatic flushing device for drainage pump of front heater

Abstract

The utility model discloses a desalting automatic flushing device for a front heater drain pump, which structurally comprises a branch pipeline connected with a desalting water main pipe, a spray head is arranged at one tail end of the branch pipeline far away from the desalting water main pipe, and an adjusting valve, a pressure transmitter and a flow detector are arranged in the middle of the branch pipeline. The pressure transmitter is arranged between the adjusting valve and the flow detector, a salinity detector is arranged on one side face of the front heater drainage pump, a recovery device is arranged on the front heater drainage pump, and the other end of the recovery device is connected to a unit drainage groove. After the technical scheme is adopted, the automatic desalting flushing device for the drainage pump of the front heater, provided by the utility model, has the advantages that the flushing efficiency is improved; and due to the design of the recovery device, the washing water can be recycled, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to an automatic desalination flushing device for a preheater condensate pump. Background Technology

[0002] The preheater condensate pumps in coastal power plants are exposed to high salt spray environments for extended periods, leading to salt deposition that causes corrosion of metal components and deterioration of insulation performance. Currently, manual flushing with handheld hoses is used periodically, which is inefficient. Furthermore, the use of fresh water during flushing results in high consumption and lacks recycling capabilities. Utility Model Content

[0003] The purpose of this invention is to provide an automatic desalination flushing device for a preheater condensate pump, in order to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic desalination flushing device for a preheater condensate pump, the structure of which includes a branch pipe connected to the desalination water main pipe, a spray head provided at one end of the branch pipe away from the desalination water main pipe, a regulating valve, a pressure transmitter, and a flow detector provided in the middle of the branch pipe, the pressure transmitter being located between the regulating valve and the flow detector, a salinity detector being provided on one side of the preheater condensate pump, and a recovery device being provided on the preheater condensate pump, the other end of which is connected to the unit's drainage tank.

[0005] Preferably, the recycling device includes a recycling tank arranged around the preheater drain pump, a recycling pipe is provided on the bottom of the recycling tank, and the other end of the recycling pipe is connected to the unit's drainage tank.

[0006] Preferably, the recovery tank and the salinity detector are located on the same side of the preheater condensate pump and below the salinity detector.

[0007] Preferably, the spray head is rotatably connected to the branch pipe via a rotating device.

[0008] Preferably, the rotating device includes a rotating block rotatably connected to the branch pipe, and connecting pipes are connected through and fixedly connected to both the upper and lower sides of the rotating block, with the spray heads evenly distributed on the connecting pipes.

[0009] Preferably, it further includes a drive transmission device rotatably connected to the rotating block. The drive transmission device includes a drive motor, a driving gear connected to the drive motor, and a driven gear meshing with the driving gear. The driven gear is sleeved on the outer side of the rotating block.

[0010] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages:

[0011] 1. This utility model provides an automatic desalination flushing device for a preheater condensate pump. It is designed with a desalination water main pipe and branch pipes, with regulating valves, pressure transmitters, flow detectors, and spray heads installed on the branch pipes. The regulating valves can dynamically adjust the pressure in the branch pipes to a range of 0.2-0.4 MPa, ensuring uniform flushing coverage. Pressure transmitters and flow detectors are installed at the outlet of the regulating valves to monitor water pressure and flow rate in real time. Furthermore, a salinity detector is included to detect the salt concentration on the surface of the preheater condensate pump. The control system automatically adjusts the opening of the desalination water regulating valve based on data from the salinity detector, pressure transmitter, and flow detector, greatly improving flushing efficiency. The design of the recovery device enables the recycling and reuse of the flushing water, making it highly practical.

[0012] 2. This utility model provides an automatic desalination flushing device for a preheater condensate pump. The device involves a spray head that is rotatably connected to a branch pipe via a rotating device. It is designed with a rotating block, a connecting pipe, and a drive transmission device. Specifically, desalinated water from the main desalinated water pipe is sprayed from the spray head through the branch pipe to clean the outer wall of the preheater condensate pump, preventing salt deposition that could lead to corrosion of metal components and decreased insulation performance. Simultaneously, the drive motor rotates the drive gear, which in turn rotates the driven gear connected to the drive gear. This causes the rotating block to rotate the spray head, expanding the cleaning area. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of an automatic desalination flushing device for a preheater drain pump according to the present invention.

[0015] Figure 2 This is a schematic diagram of the connection between the spray head and the rotating device of an automatic desalination flushing device for a preheater condensate pump according to the present invention. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example

[0021] like Figure 1 and Figure 2 As shown, an automatic desalination flushing device for a preheater condensate pump includes a branch pipe 2 connected to a desalinated water main pipe 1. A spray head 53 is installed at one end of the branch pipe 2 away from the desalinated water main pipe 1. A regulating valve 31, a pressure transmitter 32, and a flow detector 33 are installed in the middle of the branch pipe 2. The pressure transmitter 32 is positioned between the regulating valve 31 and the flow detector 33. A salinity detector 41 is installed on one side of the preheater condensate pump 4. A recovery device is installed on the preheater condensate pump 4, with its other end connected to the unit's drainage tank. With this structure, the pressure transmitter 32 can collect the pressure of the desalinated water in the branch pipe 2; the flow detector 33 can detect the flow rate of the desalinated water in the branch pipe 2; and the regulating valve 31 can dynamically adjust the pipe pressure to a range of 0.2-0.4 MPa to ensure uniform flushing coverage.

[0022] like Figure 1As shown, the recycling device includes a recycling tank 61 surrounding the preheater drain pump 4, with a recycling pipe 62 installed at the bottom of the recycling tank 61. The other end of the recycling pipe 62 is connected to the unit's drainage tank. This structure enables the recycling device to recycle the water after cleaning, making it highly practical.

[0023] like Figure 1 As shown, the recovery tank 61 and the salinity detector 41 are located on the same side of the preheater condensate pump 4 and below the salinity detector 41.

[0024] like Figure 1 , Figure 2 As shown, the spray head 53 is rotatably connected to the branch pipe 2 via a rotating device; the rotating device includes a rotating block 71 rotatably connected to the branch pipe 2, and connecting pipes 72 are connected through and fixedly connected to both the upper and lower sides of the rotating block 71, with the spray heads 53 evenly distributed on the connecting pipes 72; it also includes a drive transmission device rotatably connected to the rotating block 71, the drive transmission device including a drive motor 73, a drive gear 74 connected to the drive motor 73, and a driven gear 75 meshing with the drive gear 74, the driven gear 75 being sleeved on the outer side of the rotating block 71. This structure involves spraying demineralized water from the demineralized water main pipe 1 through the branch pipe 2 from the spray head 53 to clean the outer wall of the preheater drain pump 4, preventing salt from depositing on the preheater drain pump 4 and causing corrosion of the metal parts and reduced insulation performance. At the same time, the drive motor 73 is started to drive the drive gear 74 to rotate, which in turn drives the driven gear 75 connected to the drive gear 74 to rotate, thereby causing the rotating block 71 to drive the spray head 53 to rotate, expanding the cleaning area.

[0025] It also includes a control system (not shown in the figure) that is communicatively connected to the regulating valve 31, pressure transmitter 32, flow detector 33, salinity detector 41, and drive motor 73; wherein, the control system is used to automatically adjust the opening of the demineralized water regulating valve 31 based on the data fed back by the salinity detector 41, pressure transmitter 32, and flow detector 33.

[0026] In practical use, the control system controls the operation of the drive motor 73. The rotation of the output shaft of the drive motor 73 drives the rotation of the drive gear 74 connected to it. The rotation of the drive gear 74 drives the rotation of the driven gear 75 connected to it, which in turn drives the rotation of the connecting pipe 72. This causes the rotating block 71 to drive the spray head 53 to rotate, expanding the cleaning area. The demineralized water in the demineralized water main pipe 1 is sprayed out from the spray head 53 through the branch pipe 2 to clean the outer wall of the preheater drain pump 4, preventing salt from depositing on the preheater drain pump 4 and causing problems such as corrosion of the metal parts in the preheater drain pump 4 and a decrease in insulation performance.

[0027] The regulating valve 31 can dynamically adjust the pressure of the branch pipeline to the range of 0.2-0.4 MPa to ensure uniform flushing coverage. A pressure transmitter 32 and a flow detector 33 are installed at the outlet of the regulating valve 31 to monitor water pressure and flow rate in real time. In addition, a salinity detector 41 is set to detect the salt concentration on the surface of the preheater drain pump 4. The control system is used to automatically adjust the opening of the demineralized water regulating valve 31 based on the data fed back by the salinity detector 41, pressure transmitter 32, and flow detector 33, which greatly improves the flushing efficiency. The recycling device enables the recycling of the cleaned water, making it highly practical.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic desalination flushing device for a preheater condensate pump, characterized in that: Its structure includes a branch pipe connected to the demineralized water main pipe. A spray head is provided at one end of the branch pipe away from the demineralized water main pipe. A regulating valve, a pressure transmitter, and a flow detector are provided in the middle of the branch pipe. The pressure transmitter is located between the regulating valve and the flow detector. A salinity detector is provided on one side of the preheater drain pump. A recovery device is provided on the preheater drain pump. The other end of the recovery device is connected to the unit's drainage tank.

2. A device for automatic desalination and flushing of a pre-heater hydrophobic pump according to claim 1, characterized in that: The recycling device includes a recycling tank arranged around the preheater drain pump, a recycling pipe is provided at the bottom of the recycling tank, and the other end of the recycling pipe is connected to the unit's drainage tank.

3. A device for automatic desalination and flushing of a pre-heater hydrophobic pump according to claim 2, characterized in that: The recovery tank and the salinity detector are located on the same side of the preheater condensate pump and below the salinity detector.

4. A device for automatic desalination and flushing of a pre-heater hydrophobic pump according to claim 1, characterized in that: The spray head is rotatably connected to the branch pipe via a rotating device.

5. A device for automatic desalination and flushing of a pre-heater hydrophobic pump according to claim 4, characterized in that: The rotating device includes a rotating block that is rotatably connected to the branch pipe. Connecting pipes are connected and fixedly connected to both the upper and lower sides of the rotating block, and the spray heads are evenly distributed on the connecting pipes.

6. A device for automatic desalination and flushing of a pre-heater hydrophobic pump according to claim 5, characterized in that: It also includes a drive transmission device rotatably connected to the rotating block. The drive transmission device includes a drive motor, a drive gear connected to the drive motor, and a driven gear meshing with the drive gear. The driven gear is sleeved on the outer side of the rotating block.

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