A high-pressure backwashing device for condenser rubber ball collecting system

Abstract

The utility model relates to the technical field of high-pressure backwashing devices, and discloses a high-pressure backwashing device for a condenser rubber ball collecting system, comprising a circulating water return pipe, a ball collecting net built in the circulating water return pipe, an outlet pipe connected to the left side of the circulating water return pipe, an inlet pipe connected to the right side of the circulating water return pipe, a ball collecting pipe connected to the outlet pipe and the inlet pipe, the ball collecting pipe is connected to the ball collecting chamber through a rubber ball pump, and a backwashing component is arranged between the outlet pipe and the inlet pipe. The utility model installs a backwashing pipe and a backwashing sewage pump near the ball collecting port according to the original pipe diameter, and the flushing water uses fire water with a pressure of 0.8MPa. When the ball collecting rate of the rubber ball system is low, the rubber ball system is stopped, the water flow guide valve plate in the backwashing sewage pump is opened, and the flushing is carried out for about 30 minutes to ensure the ball collecting rate of the condenser rubber ball system and improve the cleaning effect of the condenser heat exchange tube.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure backwashing devices, in particular to a high-pressure backwashing device for a condenser rubber ball collecting system. Background Art

[0002] The function of the rubber ball device is to allow the rubber balls to circulate continuously in the condenser copper tubes to clean the dirt on the inner wall of the copper tubes and ensure the heat exchange effect of the condenser copper tubes. During the operation of the steam turbine, the condenser rubber ball collection system is prone to accumulate a large number of rubber balls at the ball collection port due to poor water quality, a lot of debris in the ball collection net or rubber ball quality problems, which in turn blocks the ball collection port, resulting in a low ball collection rate of the rubber ball system and poor cleaning effect of the condenser heat exchange tubes, affecting the energy consumption of the unit.

[0003] Although the rubber ball system has a backwashing device, the pressure is low and the effect is poor, which cannot meet the operation needs of the rubber ball system. Therefore, when the ball collection rate is high, the condenser needs to be decoupled on one side online to dredge and inspect the ball collection system. To this end, we need to provide a high-pressure backwashing device for the condenser rubber ball collection system. Add a high-pressure water flushing system to the ball collection system, and use high-pressure water backwashing when the ball collection rate is low, so as to ensure the ball collection rate of the condenser rubber ball system and improve the cleaning effect of the condenser heat exchange tube. Utility Model Content

[0004] The utility model aims to provide a high-pressure backwashing device for a condenser rubber ball collecting system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure backwashing device for a condenser rubber ball collecting system, comprising a circulating water return pipe, a ball collecting net built in the circulating water return pipe, an outlet pipe connected to the left side of the circulating water return pipe, an inlet pipe connected to the right side of the circulating water return pipe, a ball collecting pipe connected to the outlet pipe and the inlet pipe, the ball collecting pipe is connected to the ball collecting chamber through a rubber ball pump, and a backwashing component is provided between the outlet pipe and the inlet pipe.

[0006] Preferably, the backwash component adopts a backwash pipeline, and a backwash sewage pump is provided on the backwash pipeline.

[0007] Preferably, a liquid inlet connected to the backwash pipe is provided at the left end of the backwash sewage pump, and a liquid outlet connected to the backwash pipe is provided at the right end of the backwash sewage pump.

[0008] Preferably, a backwash filter is provided inside the backwash sewage pump.

[0009] Preferably, a sewage discharge pipe outlet is provided at the bottom of the backwash sewage pump.

[0010] Preferably, a valve stem is provided on the top of the backwash sewage pump, and a water flow guide valve plate is provided on the valve stem.

[0011] The utility model provides a high-pressure backwashing device for a condenser rubber ball collecting system. It has the following beneficial effects:

[0012] (1) The utility model installs a backwash pipe and a backwash sewage pump near the ball receiving port according to the original pipe diameter. The flushing water uses fire water with a pressure of 0.8MPa. When the ball receiving rate of the rubber ball system is low, the rubber ball system is stopped, the water flow guide valve plate in the backwash sewage pump is opened, and the flushing is carried out for about 30 minutes to ensure the ball receiving rate of the condenser rubber ball system and improve the cleaning effect of the condenser heat exchange tube.

[0013] (2) The utility model adds a high-pressure water flushing system to the ball collection system. When the ball collection rate is low, high-pressure water backwashing is used. There is no need to online de-energize the condenser to clean the ball collection port, which reduces manpower and material input and improves work efficiency and unit operation economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a system diagram of the backwashing device of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the water flow guide valve plate of the utility model being opened;

[0016] Figure 3 This is a schematic diagram of the closing structure of the water flow guide valve plate of the utility model.

[0017] In the figure: 111 circulating water return pipe, 112 ball collecting net, 113 water outlet pipe, 114 water inlet pipe, 115 ball collecting pipe, 2 backwashing pipeline, 212 backwashing sewage pump, 213 liquid inlet, 214 liquid outlet, 215 sewage pipe outlet, 216 backwashing filter net, 217 valve stem, 218 water flow guide valve plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The utility model provides a high-pressure backwashing device for a condenser rubber ball collecting system. Figure 1-3 As shown: a high-pressure backwashing device for a condenser rubber ball collecting system, comprising a circulating water return pipe 111, a ball collecting net 112 built in the circulating water return pipe 111, an outlet pipe 113 connected to the left side of the circulating water return pipe 111, an inlet pipe 114 connected to the right side of the circulating water return pipe 111, a ball collecting pipe 115 connected to the outlet pipe 113 and the inlet pipe 114, the ball collecting pipe 115 is connected to the ball collecting chamber through a rubber ball pump, a backwashing component is arranged between the outlet pipe 113 and the inlet pipe 114, the backwashing component adopts a backwashing pipe 2, and a backwashing sewage pump 212 is arranged on the backwashing pipe 2;

[0021] The left end of the backwash sewage pump 212 is provided with a liquid inlet 213 connected to the backwash pipe 2, and the right end of the backwash sewage pump 212 is provided with a liquid outlet 214 connected to the backwash pipe 2;

[0022] A backwash filter 216 is disposed inside the backwash sewage pump 212 , a sewage pipe port 215 is disposed at the bottom of the backwash sewage pump 212 , a valve stem 217 is disposed at the top of the backwash sewage pump 212 , and a water flow guide valve plate 218 is disposed on the valve stem 217 .

[0023] When in use, when the system operates normally, the rubber balls wash the mud and dirt in the condenser heat exchange tubes under the action of the pressure difference, clean the inner wall of the heat exchange tubes, and carry out the mud and dirt on the inner wall of the heat exchange tubes with the water flow. The rubber balls in the ball receiving room enter the ball receiving net 112 driven by the circulating water return pipe 111, are blocked by the ball receiving net 112, and are then sucked out by the rubber ball pump and re-injected into the ball receiving room. The condenser heat exchange tubes are continuously cleaned by reciprocating cycles according to this rule. However, when the flow rate of the rubber ball pump is small, that is, when the pressure is low, the rubber balls will gather at the ball receiving net 112, affecting the downward flow of the liquid. At this time, the rubber ball system is stopped. Open the fire water system, use fire water for flushing with a pressure of 0.8MPa, open the water flow guide valve plate 218 in the backwash sewage pump 212, and flush for about 30 minutes. The water supply flow of the water inlet pipe 114 enters the ball collecting pipe 115, enters the circulating water return pipe 111 through the rubber ball pump, and reaches the ball collecting net 112, so that the water flow forms a reverse impact on the rubber balls gathered at the ball collecting net 112, making the rubber balls active, improving the circulation efficiency of the rubber balls, and then improving the cleaning efficiency of the condenser, maximizing the ball collection rate of the condenser rubber ball system, and improving the cleaning effect of the condenser heat exchange tubes.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-pressure backwashing device for a condenser rubber ball collecting system, comprising a circulating water return pipe (111), characterized in that: The circulating water return pipe (111) is provided with a ball collecting net (112) therein; a water outlet pipe (113) is provided on the left side of the circulating water return pipe (111); a water inlet pipe (114) is provided on the right side of the circulating water return pipe (111); a ball collecting pipe (115) is provided on the water outlet pipe (113) and the water inlet pipe (114); the ball collecting pipe (115) is provided in communication with the ball collecting chamber via a rubber ball pump; and a backwashing assembly is provided between the water outlet pipe (113) and the water inlet pipe (114).

2. A high-pressure backwashing device for a condenser rubber ball collecting system according to claim 1, characterized in that: The backwashing component adopts a backwashing pipeline (2), and a backwashing sewage pump (212) is arranged on the backwashing pipeline (2).

3. A high-pressure backwashing device for a condenser rubber ball collecting system according to claim 2, characterized in that: The left end of the backwash sewage pump (212) is provided with a liquid inlet (213) connected to the backwash pipe (2), and the right end of the backwash sewage pump (212) is provided with a liquid outlet (214) connected to the backwash pipe (2).

4. A high-pressure backwashing device for a condenser rubber ball collecting system according to claim 2, characterized in that: A backwash filter (216) is arranged inside the backwash sewage pump (212).

5. A high-pressure backwashing device for a condenser rubber ball collecting system according to claim 2, characterized in that: The bottom of the backwash sewage pump (212) is connected to a sewage discharge pipe outlet (215).

6. A high-pressure backwashing device for a condenser rubber ball collecting system according to claim 2, characterized in that: A valve stem (217) is provided on the top of the backwash sewage pump (212), and a water flow guide valve plate (218) is provided on the valve stem (217).

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