Seawater pump room of thermal power plant

Abstract

The utility model relates to the technical field of thermal power plants, in particular to a seawater pump room of a thermal power plant, which comprises a plurality of water inlet branch pipes, the water inlet branch pipes are connected with a water inlet main pipe, the water inlet main pipe is connected with a plurality of water outlet branch pipes, and the water outlet branch pipes are respectively connected with different sedimentation tanks; the water inlet branch pipe is connected with a dosing pipe; the water outlet branch pipe is connected with a supplementary chemical feeding pipe, the chemical feeding pipe and the supplementary chemical feeding pipe are both connected with a chemical feeding mother pipe, and regulating valves are arranged on the chemical feeding pipe and the supplementary chemical feeding pipe; according to the device disclosed by the utility model, the chemical feeding pipe is arranged, so that chemical feeding can be carried out uniformly through the chemical feeding pipe, chemical liquid can be mixed with seawater in the process of flowing to the sedimentation tank, and the time spent on mixing the chemical liquid with the seawater in the sedimentation tank is shortened; by arranging the supplementing and dosing pipe, the liquid medicine in each sedimentation tank is independently supplemented and added, so that the waste of the liquid medicine caused by the fact that the liquid medicine in each sedimentation tank cannot be independently controlled is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal power plant, specifically is a thermal power plant seawater pump house. BACKGROUND

[0002] The seawater pump house of the power plant is built on the seaside, and its function is to pump out seawater, add flocculating agent for precipitation in a sedimentation tank, and then supply clean water to the cooling system to cool the generator set; the existing seawater pump house comprises a water inlet main pipe, the water inlet main pipe is connected with a plurality of water inlet branch pipes and a plurality of water outlet branch pipes, the water outlet branch pipes are respectively connected with different sedimentation tanks; seawater enters the water inlet main pipe from the water inlet branch pipes, mixes in the water inlet main pipe, and then enters the sedimentation tanks through the water outlet branch pipes; in order to accelerate the mixing of the flocculating agent and seawater, a dosing pipe is connected to the water inlet branch pipes; however, the turbidity in each sedimentation tank is different, and if the dosing pipe is arranged on the water inlet branch pipes, the dosing amount in each sedimentation tank cannot be controlled individually, resulting in waste of the medicine. SUMMARY

[0003] The main purpose of the utility model is to provide a thermal power plant seawater pump house to solve the problem that the dosing amount of the sedimentation tank in the existing seawater pump house cannot be controlled individually.

[0004] In order to achieve the above purpose, the utility model provides a thermal power plant seawater pump house, which comprises a plurality of water inlet branch pipes, the water inlet branch pipes are connected with a water inlet main pipe, the water inlet main pipe is connected with a plurality of water outlet branch pipes, the water outlet branch pipes are respectively connected with different sedimentation tanks; the water inlet branch pipes are connected with a dosing pipe; the water outlet branch pipes are connected with a supplementary dosing pipe, the dosing pipe and the supplementary dosing pipe are both connected with a dosing main pipe, and the dosing pipe and the supplementary dosing pipe are both provided with an adjusting valve.

[0005] Further, a water taking pump is arranged on the water inlet branch pipes, and a valve one is arranged on the water inlet branch pipes close to the outlet of the water taking pump.

[0006] Further, a plurality of isolation valves are arranged on the water inlet main pipe.

[0007] Further, a flow meter is arranged on the supplementary dosing pipe; the flow meter can more accurately control the supplementary dosing amount.

[0008] The utility model can uniformly dose through the dosing pipe, the dosing position of the dosing pipe is far away from the sedimentation tank, the medicine liquid can be mixed with seawater in the process of flowing to the sedimentation tank, and the time spent for mixing the medicine liquid with seawater in the sedimentation tank is reduced; the supplementary dosing pipe can be used to supplement and add the medicine liquid in each sedimentation tank according to the sedimentation condition in each sedimentation tank, so that the waste of the medicine liquid caused by the fact that the medicine liquid in each sedimentation tank cannot be controlled individually is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0009] The drawings accompanying the specification illustrate preferred embodiments of the application and, together with the description, serve to explain the principles of the application.

[0010] Figure 1 A structure schematic view of the seawater pump house of the thermal power plant in the embodiment;

[0011] In the figure: 1, water inlet branch pipe; 2, water inlet main pipe; 3, water outlet branch pipe; 4, sedimentation tank; 5, dosing pipe; 6, supplementary dosing pipe; 7, dosing main pipe; 8, regulating valve; 9, water taking pump; 10, valve one; 11, valve two; 12, isolation valve; 13, flow meter. DETAILED DESCRIPTION

[0012] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0013] As Figure 1 shown, according to the embodiment of the present application, a seawater pump house of a thermal power plant is provided, which comprises a plurality of water inlet branch pipes 1, the water inlet branch pipes 1 are connected with a water inlet main pipe 2, the water inlet main pipe 2 is connected with a plurality of water outlet branch pipes 3, the water outlet branch pipes 3 are respectively connected with different sedimentation tanks 4; the water inlet branch pipes 1 are connected with dosing pipes 5; the water outlet branch pipes 3 are connected with supplementary dosing pipes 6, the dosing pipes 5 and the supplementary dosing pipes 6 are both connected with a dosing main pipe 7, and the dosing pipes 5 and the supplementary dosing pipes 6 are both provided with regulating valves 8.

[0014] A water taking pump 9 is arranged on the water inlet branch pipe 1, and valve one 10 is arranged on the water inlet branch pipe 1 close to the outlet of the water taking pump 9; valve two 11 is arranged on the water outlet branch pipe 3; a plurality of isolation valves 12 are arranged on the water inlet main pipe 2.

[0015] A flow meter 13 is arranged on the supplementary dosing pipe 6; by arranging the flow meter, the supplementary dosing amount can be more accurately controlled.

[0016] The embodiment can uniformly dose through the dosing pipes 5, the dosing position of the dosing pipes 5 is far away from the sedimentation tanks 4, so that the liquid medicine can be mixed with seawater during flowing to the sedimentation tanks 4, and the time spent for mixing the liquid medicine with seawater in the sedimentation tanks 4 is reduced; by arranging the supplementary dosing pipes 6, the liquid medicine in each sedimentation tank 4 can be separately supplemented according to the deposition condition in each sedimentation tank 4, so that the waste of liquid medicine caused by the fact that the liquid medicine in each sedimentation tank 4 cannot be separately controlled is avoided.

[0017] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A seawater pump house of a thermal power plant, comprising a plurality of water inlet branch pipes (1), a water inlet main pipe (2) connected with the water inlet branch pipes (1), a plurality of water outlet branch pipes (3) connected with the water inlet main pipe (2), and different sedimentation tanks (4) connected with the water outlet branch pipes (3) respectively; the water inlet branch pipes (1) are connected with a dosing pipe (5); characterized in that, The water outlet branch pipe (3) is connected with a supplementary dosing pipe (6), the dosing pipe (5) and the supplementary dosing pipe (6) are both connected with a dosing main pipe (7), and the dosing pipe (5) and the supplementary dosing pipe (6) are both provided with an adjusting valve (8).

2. The seawater pump house of a thermal power plant according to claim 1, wherein The water inlet branch pipe (1) is provided with a water taking pump (9), and a valve one (10) is arranged on the water inlet branch pipe (1) and close to the outlet of the water taking pump (9); the water outlet branch pipe (3) is provided with a valve two (11).

3. The seawater pump house of a thermal power plant according to claim 1, wherein The water inlet main pipe (2) is provided with a plurality of isolation valves (12).

4. The seawater pump house of claim 1, wherein The supplementary dosing pipe (6) is provided with a flow meter (13).

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