Multi-media mixing device and in-line cleaning device

Abstract

This invention discloses a multi-media mixing device and an online cleaning device. The multi-media mixing device includes a main body, a gas pulse valve, a first branch pipe, a first control valve, a mixing pipe, a second control valve, and a cleaning water pump. The main body has a main flow channel for the circulating media. The output port of the gas pulse valve is connected to the input port of the main body, and the gas pulse valve is used to intermittently introduce airflow into the main flow channel. The first branch pipe is connected to the main body through the first control valve, and the first branch pipe is used to introduce rubber balls into the main flow channel. The mixing pipe has a mixing chamber, and the main body is connected to the mixing pipe through the second control valve. The mixing pipe has an inlet connected to the mixing chamber, and the cleaning water pump introduces cleaning water into the mixing chamber through the inlet. The mixing chamber is used for mixing the cleaning water, rubber balls, and airflow to form a cleaning medium. This invention achieves the mixed delivery of multiple media, thereby improving the cleaning effect on condensers in online cleaning devices equipped with this multi-media mixing device.

Description

Technical Field

[0001] This invention relates to the field of condenser cleaning devices, and particularly to a multi-media mixing device and an online cleaning device. Background Technology

[0002] Seawater-cooled condenser units use seawater as circulating water, which contains a large amount of impurities such as silt, shellfish, and algae. These impurities settle at the inlets and inside the condenser heat exchanger tubes, causing blockages and affecting unit thermal efficiency, increasing coal consumption, and even impacting long-term safe operation. Therefore, a condenser cleaning device is needed. Traditional condenser cleaning devices use a single cleaning medium, typically clean water to rinse the heat exchange pipes. However, clean water has poor cleaning performance, and this method fails to meet cleaning requirements, resulting in poor cleaning effectiveness for the condenser. Summary of the Invention

[0003] The main objective of this invention is to provide a multi-media mixing device, which aims to achieve the mixed transport of multiple media, so that the online cleaning device equipped with the multi-media mixing device can improve the cleaning effect on the condenser.

[0004] To achieve the above objectives, the present invention provides a multi-media mixing device comprising:

[0005] The main body has a main channel for the flow of the medium;

[0006] A gas pulse valve, the output port of which is connected to the input port of the main body, is used to intermittently introduce airflow into the main channel;

[0007] A first branch pipe and a first control valve, wherein the first branch pipe is connected to the main body through the first control valve, and the first branch pipe is used to introduce a rubber ball into the main channel.

[0008] The system includes a mixing pipe, a second control valve, and a cleaning water pump. The mixing pipe has a mixing chamber. The main pipe is connected to the mixing pipe via the second control valve. The mixing pipe has an inlet that communicates with the mixing chamber. The cleaning water pump introduces cleaning water into the mixing chamber through the inlet. The mixing chamber is used to mix the cleaning water, the rubber balls, and the airflow to form a cleaning medium. The mixing pipe is used to transport the cleaning medium into the online cleaning device.

[0009] Optionally, the glue ball is intermittently delivered to the mixing chamber through the cooperation of the gas pulse valve, the first control valve, and the second control valve.

[0010] Optionally, the mixing pipe includes an inlet pipe section, an intermediate pipe section, an outlet pipe section, and a water inlet pipe section. The inlet pipe section, the intermediate pipe section, and the outlet pipe section are connected in sequence, and the inner cavities of the intermediate pipe section and the outlet pipe section together form the mixing chamber. A portion of the inlet pipe extends into the intermediate pipe section, and the water inlet pipe section is connected to the intermediate pipe section.

[0011] Optionally, in the direction of airflow, at least a portion of the feed pipe section has a gradually decreasing diameter, and both ends of the discharge pipe section are arranged in an outwardly expanding conical flared shape.

[0012] Optionally, the intermediate pipe section, the discharge pipe section, and the water inlet pipe section are integrally formed.

[0013] Optionally, the multi-media mixing device further includes a dosing tank and a stirring conveyor. The dosing tank has a dosing chamber, the stirring conveyor is installed in the dosing chamber, the dosing tank is installed above the intermediate pipe section, and the dosing chamber is connected to the mixing chamber.

[0014] Optionally, the stirring conveyor includes a drive motor, a rotating rod, and helical blades. The drive motor is installed in the dosing tank and is driven by the rotating rod. The helical blades are located on the outer periphery of the rotating rod.

[0015] Optionally, the multi-media mixing device further includes a check valve, which is installed at the inlet of the gas pulse valve.

[0016] Optionally, the first control valve is a pneumatic butterfly valve, and the second control valve is a pneumatic ball valve.

[0017] The present invention also proposes an online cleaning device, including a cleaning mechanism and a multi-media mixing device as described above. The cleaning mechanism is connected to the output port of the mixing tube, and the cleaning mechanism is used to spray the cleaning medium into the heat exchange tube of the condenser to clean the condenser.

[0018] In this invention, a gas pulse valve introduces airflow into the main pipe. A rubber ball enters the main pipe through a first branch pipe, and the airflow transports the ball to a mixing pipe where it mixes with cleaning water. The airflow, rubber ball, and cleaning water in the mixing chamber form a cleaning medium. The online cleaning device uses this cleaning medium to clean the condenser. The rubber ball can enter the heat exchange tubes of the condenser to clean the tube walls and dislodge impurities clogging the tubes. The airflow increases the mixing speed between the rubber ball and the cleaning water and accelerates the movement of the cleaning water and the rubber ball, resulting in a stronger impact force from the cleaning water to remove dirt from the heat exchange tubes. This multi-media mixing device, by mixing multiple substances, provides a more powerful cleaning medium to the online cleaning device, thus improving the cleaning effect on the condenser. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the multi-media mixing device of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the mixing tube;

[0022] Figure 3 for Figure 2 A sectional view;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the chemical addition tank and the mixing conveyor.

[0024] Explanation of icon numbers:

[0025] 10 Supervisory body 20 Gas pulse valve 21 intake manifold 30 First branch 31 First control valve 40 Mixing tube 401 Feed pipe section 402 intermediate pipe section 402a Dosing port 403 Discharge pipe section 404 Inlet pipe section 405 Mixing chamber 50 dosing box 501 Drug dosing chamber 502 Dispensing hole 51 Mixing conveyor 511 Rotating rod 512 Spiral blades 60 Second control valve 70 Check valve

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] This invention proposes a multi-media mixing device for use in online cleaning devices.

[0032] In one embodiment of the present invention, such as Figures 1 to 4As shown, the multi-media mixing device includes a main body 10, a gas pulse valve 20, a first branch pipe 30, a first control valve 31, a mixing pipe 40, a second control valve 60, and a cleaning water pump. The main body 10 has a main channel for the flow of media. The output port of the gas pulse valve 20 is connected to the input port of the main body 10, and the gas pulse valve 20 is used to intermittently introduce airflow into the main channel. The first branch pipe 30 is connected to the main body 10 through the first control valve 31, and the first branch pipe 30 is used to introduce rubber balls into the main channel. The mixing pipe 40 has a mixing chamber 405. The main body 10 is connected to the mixing pipe 40 through the second control valve 60. The mixing pipe 40 has an inlet that communicates with the mixing chamber 405. The cleaning water pump introduces cleaning water into the mixing chamber 405 through the inlet. The mixing chamber 405 is used to mix the cleaning water, rubber balls, and airflow into a cleaning medium. The mixing pipe 40 is used to transport the cleaning medium to an online cleaning device.

[0033] In this invention, the gas pulse valve 20 introduces airflow into the main body 10. A rubber ball enters the main body 10 through the first branch pipe 30. The airflow transports the rubber ball to the mixing pipe 40 to mix with the cleaning water. The airflow, rubber ball, and cleaning water in the mixing chamber 405 mix to form a cleaning medium. The online cleaning device uses this cleaning medium to clean the condenser. The rubber ball can enter the heat exchange tubes of the condenser to clean the tube walls and push out impurities blocked in the heat exchange tubes. The airflow increases the mixing speed of the rubber ball and the cleaning water and accelerates the movement of the cleaning water and the rubber ball, thus giving the cleaning water a greater impact force to remove dirt from the heat exchange tubes. This configuration allows the multi-media mixing device to mix multiple substances and provide a stronger cleaning medium to the online cleaning device, resulting in better cleaning of the condenser by the online cleaning device equipped with this multi-media mixing device.

[0034] In one embodiment, the rubber ball is intermittently delivered to the mixing chamber 405 through the cooperation of the gas pulse valve 20, the first control valve 31 and the second control valve 60.

[0035] Specifically, the first branch pipe 30 is connected to a ball delivery pump. The ball delivery pump first delivers the balls into the first branch pipe 30. After delivering the balls for a preset time, the first control valve 31 and the second control valve 60 open, and the balls enter the main body 10 from the first branch pipe 30. At this time, the gas pulse valve 20 introduces airflow into the main body 10 to deliver multiple balls to the mixing pipe 40. After delivering the balls for a preset time, the first control valve 31 and the second control valve 60 close, and the ball delivery pump delivers the balls to the first branch pipe 30 again. After the ball delivery pump delivers the balls for another preset time, it delivers the balls to the mixing pipe 40 again. This setting is repeated, and the balls are delivered intermittently to the mixing chamber 405 to ensure that the number of balls mixed with the cleaning water is not too large, so as to form a better water-ball ratio and thus ensure the cleaning effect.

[0036] In one embodiment, the mixing pipe 40 includes a feed pipe section 401, an intermediate pipe section 402, a discharge pipe section 403, and a water inlet pipe section 404. The feed pipe section 401, the intermediate pipe section 402, and the discharge pipe section 403 are connected in sequence, and the inner cavities of the intermediate pipe section 402 and the discharge pipe section 403 together form a mixing chamber 405. A portion of the feed pipe extends into the intermediate pipe section 402, and the water inlet pipe section 404 is connected to the intermediate pipe section 402.

[0037] Specifically, the outlet of the feed pipe is located within the intermediate pipe section 402, and the water inlet pipe section 404 is directly connected to the intermediate pipe section 402 to ensure the delivery of cleaning water. This configuration allows the airflow and the rubber balls to mix quickly with the cleaning water when they enter the mixing chamber 405, thereby improving the mixing efficiency of the airflow, rubber balls, and cleaning water. Furthermore, the rubber balls will not remain in dead zones, ensuring a better mixing effect and resulting in a cleaning medium with superior cleaning performance. In other embodiments, the feed pipe section 401 is connected to the intermediate pipe section 402 through its outlet.

[0038] In one embodiment, at least a portion of the diameter of the feed pipe section 401 is gradually reduced in the direction of airflow, and both ends of the discharge pipe section 403 are arranged in a tapered flared shape that gradually expands outward.

[0039] Specifically, the middle sections of the intermediate pipe section 402 and the discharge pipe section 403 are smooth areas, allowing for better mixing of the rubber balls, airflow, and cleaning water. The connection between the discharge pipe section 403 and the intermediate pipe section 402 is a conical flared opening, with the diameter gradually decreasing in the direction of the cleaning water flow. This design facilitates the entry of the rubber balls from the intermediate pipe section 402 into the discharge pipe section 403. Since the diameter of the intermediate pipe section 402 is larger than that of the discharge pipe section 403, this design aims to prevent a step at the connection point from causing the rubber balls to get stuck, thus ensuring smooth delivery of the rubber balls. In other embodiments, the diameter of the intermediate pipe section 402 is smaller than that of the feeding pipe section, and both ends of the discharge pipe section 403 are designed as outwardly tapering conical flared openings.

[0040] In one embodiment, the intermediate pipe section 402, the discharge pipe section 403, and the water inlet pipe section 404 are integrally formed.

[0041] Specifically, the integral molding of the intermediate pipe section 402, the discharge pipe section 403, and the water inlet pipe section 404 can save the cost of multiple mold openings, and the integral molding structure has higher strength. This arrangement can save production costs and also extend the service life of the mixing pipe 40. In some other embodiments, the intermediate pipe section 402 is detachably connected to the discharge pipe section 403 and the water inlet pipe section 404, respectively.

[0042] In one embodiment, the multi-media mixing device further includes a dosing tank 50 and a stirring conveyor 51. The dosing tank 50 is provided with a dosing chamber 501, and the stirring conveyor 51 is installed in the dosing chamber 501. The dosing tank 50 is installed above the intermediate pipe section 402, and the dosing chamber 501 is connected to the mixing chamber 405.

[0043] Specifically, a dosing port 402a is provided on the intermediate pipe section 402, and multiple dispensing holes 502 communicating with the dosing port 402a are provided at the bottom of the dosing tank 50. The multiple dispensing holes 502 are distributed at intervals at the bottom of the dosing tank 50. First, the powder is put into the dosing chamber 501, and then the powder is gradually conveyed from the dispensing holes 502 to the mixing chamber 405 by the stirring conveyor 51. In addition, multiple powders can be added into the dosing chamber 501, and the multiple powders are stirred and mixed by the stirring conveyor 51, and then gradually conveyed to the mixing chamber 405 so that the cleaning water and powder can be mixed from the mixing chamber 405. During the flow of the cleaning water, the powder can be continuously mixed with the cleaning water. When it is conveyed to the online cleaning equipment, the powder is completely dissolved in the cleaning water. This setting can improve the cleaning effect of the cleaning medium and can adjust the powder according to the specific conditions of the heat exchange tubes of the condenser to clean the problem.

[0044] In one embodiment, the stirring conveyor 51 includes a drive motor, a rotating rod 511, and a spiral blade 512. The drive motor is mounted on the dosing tank 50 and is driven by the rotating rod 511. The spiral blade 512 is disposed on the outer periphery of the rotating rod 511.

[0045] Specifically, the rotating rod 511 is rotatably inserted into the dosing tank 50 and extends along the direction of the airflow. Before adding the powder, the drive motor is turned on to drive the rotating rod 511 to rotate. As the rotating rod 511 rotates, the powder is added to the dosing chamber 501. At this time, the spiral blades 512 can stir the powder and move it to the dispensing hole 502. The spiral blades 512 have a smooth surface and high strength, ensuring that the powder does not remain or adhere to them during transport and stirring, and accelerating the entry of the powder into the mixing chamber 405. In some other embodiments, the rotating rod 511 extends from top to bottom, with a portion of it extending into the dosing chamber 501.

[0046] In one embodiment, the multi-media mixing device further includes a check valve 70, which is installed at the inlet of the gas pulse valve 20.

[0047] Specifically, in this embodiment, an inlet pipe 21 is connected to the inlet of the gas pulse valve 20. The inlet pipe 21 is connected to the gas pulse valve 20 through a check valve 70. The check valve 70 ensures that the gas flows in a single direction. This arrangement prevents gas from flowing back out of the gas pulse valve 20 and also prevents substances in the main pipe 10 from flowing back out, ensuring that the gas completely enters the mixing chamber 405 for mixing. In other embodiments, the multi-media mixing device also includes a solenoid valve, which is installed at the inlet of the gas pulse valve 20.

[0048] In one embodiment, the first control valve 31 is a pneumatic butterfly valve, and the second control valve 60 is a pneumatic ball valve.

[0049] Specifically, the pneumatic ball valve is used to control the opening and closing of the main pipe 10. It has good flow regulation capabilities, enabling it to adjust the input airflow. The pneumatic ball valve offers advantages such as fast shut-off speed, simple structure, tight and reliable operation, convenient maintenance, and wide applicability. The pneumatic butterfly valve is used to control the opening and closing of the first branch pipe 30. It offers advantages such as convenient and rapid opening and closing, labor-saving operation, low fluid resistance, and simple structure. This arrangement improves the opening and closing speed of the first control valve 31 and the second control valve 60, thereby enhancing overall efficiency.

[0050] This invention also proposes an online cleaning device, which includes a cleaning mechanism and a multi-media mixing device. The specific structure of the multi-media mixing device is as described in the above embodiments. Since this online cleaning device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The cleaning mechanism is connected to the output port of the mixing tube 40, and the cleaning mechanism is used to spray the cleaning medium into the heat exchange tubes of the condenser to clean the condenser.

[0051] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A multi-media mixing device for use in an in-line cleaning device, characterized by, The multi-media mixing device includes: The main body has a main channel for the flow of the medium; A gas pulse valve, the output port of which is connected to the input port of the main body, is used to intermittently introduce airflow into the main channel; A first branch pipe and a first control valve, wherein the first branch pipe is connected to the main body through the first control valve, and the first branch pipe is used to introduce a rubber ball into the main channel. The system includes a mixing pipe, a second control valve, and a cleaning water pump. The mixing pipe has a mixing chamber. The main body is connected to the mixing pipe through the second control valve. The mixing pipe has an inlet that communicates with the mixing chamber. The cleaning water pump introduces cleaning water into the mixing chamber through the inlet. The mixing chamber is used to mix the cleaning water, the rubber ball, and the airflow to form a cleaning medium. The gel ball is intermittently delivered to the mixing chamber through the cooperation of the gas pulse valve, the first control valve, and the second control valve; The mixing pipe includes an inlet pipe section, an intermediate pipe section, an outlet pipe section, and a water inlet pipe section. The inlet pipe section, the intermediate pipe section, and the outlet pipe section are connected in sequence, and the inner cavities of the intermediate pipe section and the outlet pipe section together form the mixing cavity. A portion of the inlet pipe section extends into the intermediate pipe section, and the water inlet pipe section is connected to the intermediate pipe section. In the direction of airflow, at least a portion of the feed pipe section has a gradually decreasing diameter, and both ends of the discharge pipe section are arranged in a tapered flared shape that gradually expands outward.

2. The multi-media mixing device as described in claim 1, characterized in that, The intermediate pipe section, the discharge pipe section, and the water inlet pipe section are integrally formed.

3. The multi-media mixing device as described in claim 1, characterized in that, The multi-media mixing device also includes a dosing tank and a stirring conveyor. The dosing tank has a dosing chamber, and the stirring conveyor is installed in the dosing chamber. The dosing tank is installed above the intermediate pipe section, and the dosing chamber is connected to the mixing chamber.

4. The multi-media mixing device as described in claim 3, characterized in that, The stirring conveyor includes a drive motor, a rotating rod, and helical blades. The drive motor is installed in the dosing tank and is driven by the rotating rod. The helical blades are located on the outer periphery of the rotating rod.

5. The multi-media mixing device as described in claim 1, characterized in that, The multi-media mixing device also includes a check valve, which is installed at the inlet of the gas pulse valve.

6. The multi-media mixing device as described in claim 1, characterized in that, The first control valve is a pneumatic butterfly valve, and the second control valve is a pneumatic ball valve.

7. An online cleaning device, characterized in that, The device includes a cleaning mechanism and a multi-media mixing device as described in any one of claims 1 to 6, wherein the cleaning mechanism is connected to the output port of the mixing tube and is used to spray the cleaning medium into the heat exchange tubes of the condenser to clean the condenser.

Images