preface:

Jiangsu Peide Water Treatment will provide you with a detailed introduction to the updated version of China The upgraded version of the rubber ball cleaning device for the condenser (evaporator) of central air conditioning is a product of continuous accumulation of customer feedback and problems encountered during the use of the rubber ball cleaning device. The R&D team and design department of Jiangsu Peide Water Treatment Manufacturer have conducted performance comparison tests and continuously explored, experimented, and tackled problems. The principle, appearance, and internal structure of the rubber ball cleaning device have been redesigned to be more convenient for customers to use. The improved rubber ball cleaning device has stable and reliable effects, simple operation, small size, easy installation, and a 12% increase in ball collection efficiency compared to the first generation, with a 95% reduction in failure rate.

The evaporator is a device that cools chilled water (ice water). After the chilled water runs, it absorbs heat and the temperature rises, requiring cooling before it can run again. After the temperature rises, the chilled water enters the evaporator and flows through the inner wall of the heat exchange tube to cool down before flowing out. The cooling refrigerant flows through the outer wall of the heat exchange tube, and the evaporator exchanges heat through the heat exchange tube, thereby cooling the chilled water. After prolonged operation, scale and stains will accumulate on the inner walls of the heat exchange tubes, affecting heat transfer efficiency and refrigeration performance. Therefore, it is also necessary to regularly clean the inner walls of the evaporator heat exchange tubes. The rubber ball cleaning device is a device for cleaning the inner wall of the heat exchange tube of the condenser (evaporator), which is suitable for the shell and tube condenser of water-cooled chiller units and also for the shell and tube evaporator of water-cooled chiller units, improving the refrigeration efficiency of the unit and saving electricity. From this perspective, both broad-spectrum induction water processors and cooling tower scale collectors can achieve this goal.

working principle:

In the middle The central air conditioning condenser (evaporator) rubber ball cleaning device keeps the inner wall of the heat exchange tube clean by emitting rubber balls to clean the inner wall of the heat exchange tube. After the rubber balls are recovered, they can be fired multiple times at regular intervals. The water pump of the rubber ball cleaning device is started to send the rubber balls from the launcher to the inlet end of the condenser together with the water and the ball. The rubber balls enter the condenser end cover with the cooling circulating water, and randomly enter the condenser copper tube. Under the push of the cooling circulating water, the rubber balls move inside the copper tube, scrub the inner wall of the copper tube, and after leaving the copper tube, the rubber balls enter the condenser end cover installed on the outlet pipeline with the cooling circulating water. The ball blocking net in the ball trap blocks the rubber balls, and water flows through the mesh hole. Complete the entire cleaning process from the receiving net to the serving net. Set the cleaning frequency and frequency through a microcomputer control program to achieve automatic online cleaning function.

Control mode of rubber ball cleaning device:

Automatic control: The cleaning frequency and frequency are set through a microcomputer control program to achieve automatic online cleaning function.

Manual control: Manually activate the rubber ball cleaning device.

Composition of rubber ball cleaning device system:

Server:Container for storing rubber balls, launching and recycling rubber balls. The installation position of the server and the inlet and outlet connecting pipes should ensure the uniformity of the rubber ball and prevent blockage.

Ball Collector:When the ball leaves the condenser, it is caught by the ball collector. The overall material is carbon steel or stainless steel, with a pressure bearing capacity of 10— 25 bar, effective flow area greater than 3 times that of the connecting pipeline, and fluid resistance loss less than 5 Kpa. The design of the ball collecting net should have good hydraulic characteristics to prevent the net plate from vibrating under water flow impact. The design of the ball collecting net should ensure that there is no ball blockage or ball running.

Sponge ball:Clean the inner wall of the condenser heat exchange tube. The rubber ball should have uniform density and good recovery performance. When operating at a water temperature of 5-36 ℃, the diameter of the wet rubber ball should not exceed the diameter of the dry rubber ball by 0.5 millimeters. During operation, the diameter of the rubber ball should be 1-2mm larger than the inner diameter of the heat exchange tube. It should remain stable during operation to prevent the rubber ball from blocking the cooling water tube.

Microcomputer controller:Automatic control, setting of cleaning frequency and time, and triggering of cleaning based on the temperature difference of water entering and leaving the condenser.

Rubber ball specifications and suitable cleaning copper tube inner diameter:

The problem caused by scaling of condenser copper pipes:

Figure 1, left: Scaling on the pipe wall reduces surface heat exchange efficiency and affects the heat exchange coefficient of the pipeline

Figure 2, right: After using the rubber ball cleaning device, the heat exchange coefficient of the pipeline can be maintained at the initial state of the system.

Function of rubber ball cleaning device:

Improve operational efficiency,Because the online cleaning system of the condenser can free the copper tubes of the condenser from scaling, the operation of the compressor will not exceed the design limit, therefore Central air conditioning will operate at its high efficiency.

Extended The lifespan of central air conditioning reduces maintenance,Because the operation of the compressor does not exceed its design limit, the service life of the equipment is extended, thus improving the efficiency The effectiveness of central air conditioning. Less maintenance is still necessary.

Reduce overall energy consumption,When the compressor is operating at high power Central air conditioning consumes less energy to produce the same output. In a typical example, the energy-saving department of a semiconductor manufacturing plant deals with an 800 ton container An audit conducted before and after installing the condenser online cleaning system for central air conditioning found that using a rubber ball cleaning device can save $83000 in energy annually, with a payback period of 4 months.

Reduce water treatment costs,Because the online cleaning system of the condenser can remove scaling from the copper pipes of the condenser, water treatment only requires some auxiliary equipment to prevent scaling, such as cooling towers and valves. An independent audit by the manufacturing plant found that the installation of an online condenser cleaning system reduced the cost of chemicals used to treat water by 51%. In the case of another one with two 300 tons In the audit of commercial buildings with central air conditioning, the total hardness and total dissolved solids were reduced by 51% and 53%, respectively.

Prevent corrosion of condenser tubes,Microbial corrosion and concentrated cell corrosion are caused by scaling on the pipe wall. Because the rubber ball cleaning device can prevent pipeline scaling, these corrosion mechanisms are eliminated, thereby extending the lifespan of the pipeline.

Comparison between rubber ball cleaning device and traditional descaling method:

Comparison between rubber ball cleaning device and peer manufacturers:

Benefit analysis of rubber ball cleaning device:

There are three chiller units in total Taking central air conditioning as an example, the compressor power is 429KW, and the units are used all year round. In summer, three units are operated, and the total compressor power is 1287KW. The running time is calculated as 4 months. Operate 2 units in other seasons, with a total compressor power of 858KW. The running time is calculated as 6 months. According to the different water quality in different regions, the energy-saving effect ranges from 15% to 35%. We calculate based on a 20% energy-saving rate, an average load of 80%, 24 hours of operation per day, 30 days per month, and an electricity fee of 1.0 yuan per kilowatt hour. So: Monthly electricity savings during summer operation: 1287 kW x 80% x 1 hour x 1.0 yuan/kWh x 20% x 24 hours x 30 days=148262.4 yuan

Electricity cost savings per hour during operation in other seasons: 858kW x 80% x 1 hour x 1.0 yuan/kWh x 20% x 24 hours x 30 days=98841.6 yuanThe annual electricity cost savings are: 148262.4 yuan x 4 months+98841.6 yuan x 6 months=1186099.2 yuan. In addition, including annual chemical cleaning, labor costs, and equipment maintenance costs, calculated based on an annual start-up time of 10 months, a total economic benefit of up to 1.2 million yuan can be generated throughout the year. It has been proven that users can recover the investment cost of the equipment in a short period of time!

Characteristics of rubber ball cleaning device:

1: The main unit of the condenser ball cleaning device is composed of a water pump and a ball launcher, occupying less than 0.5 square meters.

2: The operation is simple, and the cleaning process can be completed by controlling the start and stop of the water pump through time. The cleaning time, interval time, and frequency can be set by oneself.

3: There is a water flow switch on the ball collector. When the air conditioning unit is not running, the condenser ball cleaning device will stop following the unit.

4: The ball blocking net adopts a stainless steel large-diameter net, which only intercepts rubber balls and has a head loss of less than one meter.

5: The rubber ball only circulates in the pipeline and does not pass through the water pump, avoiding damage to the rubber ball by the pump impeller and prolonging the use time of the rubber ball.

6: The operating cost is low, with a monthly electricity consumption of less than 5KW/h. The annual cost of replacing rubber balls and electricity does not exceed 1000 yuan

7: The serving part adopts a patented mechanical structure device, which is simple, reliable, and requires minimal maintenance and protection.

Comparison diagram of rubber ball cleaning device before and after use:

Before and after use

Specification parameters of rubber ball cleaning device:

Installation system diagram of rubber ball cleaning device:

Precautions for installation of rubber ball cleaning device:

1. Connect the pipeline according to the requirements of the piping system diagram, and do not connect it incorrectly.

2. Open a DN50 hole near the end cap of the condenser inlet pipe, connect the ball outlet of the receiver, and install a DN50 ball valve on the pipeline. The hole should be located behind the filter.

3. Install a ball collector on the condenser outlet pipeline, connect the DN50 flange outlet of the ball collector to the ball receiver port of the ball launcher, and install a DN50 ball valve on the pipeline. The main unit of the rubber ball cleaning device should be positioned as close as possible to the condenser.

4. The pipeline is simple, reducing the bends and length of the pipeline.

5. To ensure the smooth cleaning of the heat exchange tube by the rubber ball without being blocked or scratched by debris, it is necessary to ensure that there is no welding slag, iron filings or other debris in the pipeline from the condenser inlet pipe launching point to the ball receiver receiving point and the condenser end cover. It is recommended to install a filter before the condenser inlet pipe launching point.

6. Leave 0.6 meters of maintenance space around the mainframe of the rubber ball cleaning device. Connect the wires of the water flow switch and the electric valve of the filter according to the corresponding numbers. Connect a 380V/50Hz power supply inside the control box, and ensure that the direction of the water pump is consistent with the direction arrow indicated on the water pump label.

Partial case of rubber ball cleaning device on-site:

Application: Used in the Bank of Communications Building Cleaning of the condenser of the central air conditioning system

Customer: Shanghai Bank of Communications

Application: Used for Cleaning the condenser of central air conditioning

Customer: Gree Industrial Park, Hefei, Anhui

Project Overview: The total investment is approximately 4.4 billion yuan, covering an area of approximately 1525 acres. Currently, it is the largest specialized air conditioning production base in central and eastern China, and the third largest in China.

Customer: Zhongyu Metropolitan Plaza

Application: Cleaning of circulating water condenser

Project Overview: With a total construction area of over 400000 square meters, it is a large experiential shopping mall that integrates 89000 square meters of young people, 3 office buildings, and 1 super five-star hotel

Urban complex. The project has approximately 2200 parking spaces and 3 super large outdoor plazas, with the underground level connected to the Jiazhou Road Station of Metro Line 3.

Customer: A hospital in Wuhan

Application: Medium Central air conditioning

Project Overview: The hospital covers an area of 30000 square meters (approximately 45 acres), with a building area of 52630 square meters, including 30800 square meters of medical business space.

Packaging diagram of rubber ball cleaning device: