Circulating cold air pipe convenient to clean

Abstract

A circulating cold air pipe convenient to clean comprises a condensation pipe, a filter screen, a cleaning ball and a connecting pipe, connectors are arranged at the two ends of the condensation pipe and used for being connected with an indoor unit and an outdoor unit of an air conditioner, stepped grooves are formed in the positions, used for being connected with the connectors of the indoor unit of the air conditioner, of the condensation pipe, and the filter screen is clamped in the stepped grooves. A connecting block is arranged on a pipe body, close to one end of the indoor unit of the air conditioner, of the condensation pipe, a storage box is arranged at the end of the connecting block, the cleaning ball is placed in the storage box and used for removing attachments on the inner wall of the condensation pipe, one end of the connecting pipe is connected to the connecting block, and the other end of the connecting pipe is connected to the other end of the connecting pipe. The other end of the connecting pipe is communicated with the condensation pipe through an arranged electric three-way valve, and the electric three-way valve is arranged at the end, close to an air conditioner outdoor unit, of the condensation pipe and used for controlling the communication state of the condensation pipe and the connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling air pipe cleaning, in particular to a circulating cooling air pipe which is easy to clean. Background Art

[0002] The recirculating air cooler, also known as the condenser or coolant pipe, is an important part of the air conditioning system. The main function of the recirculating air cooler is to transfer the refrigerant and complete the condensation and evaporation cycle, thereby realizing the cooling and heating functions of the air conditioning system. It acts as a bridge connecting indoor and outdoor components, making the transfer and transfer of heat possible. The recirculating air cooler is usually made of metal materials (such as copper pipes) with a certain hardness and corrosion resistance. They are usually circular cross-section pipes that contain refrigerant inside.

[0003] Most of the existing circulating air conditioning pipes are straight-cylinder shaped and made of stainless steel or other high thermal conductivity materials. However, during long-term use, some hard attachments and water stains are easily accumulated inside the air conditioning pipe. These attachments may not only cause fluid flow obstruction, but also in some cases may cause corrosion of the air conditioning pipe, reducing its service life. After long-term use, hard attachments such as scale and oil stains are easily accumulated inside the air conditioning pipe. These attachments may affect the cooling efficiency because they may act as an insulation layer and reduce the heat exchange capacity of the air conditioning pipe; due to the condensation effect, there are often water stains on the inner wall of the air conditioning pipe, and a long-term humid environment may cause corrosion of the air conditioning pipe, thereby reducing its service life; removing attachments and water stains inside the air conditioning pipe usually requires complex cleaning procedures, such as chemical cleaning, manual scraping, etc., which is not only time-consuming and labor-intensive, but may also cause additional damage to the air conditioning pipe. Since the air conditioning outdoor unit is usually located outdoors, and the air conditioning outdoor unit in the current residential building is located outside the building, if the circulating pipe is removed for cleaning, it is necessary to perform high-altitude operations, which can only be completed by professionals, and it is also time-consuming and labor-intensive, and there is a certain degree of danger. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned problems in the prior art, the utility model proposes a circulating cold air pipe which is easy to clean.

[0005] According to an embodiment of the utility model, a circulating cold air pipe that is easy to clean includes a condenser, a filter, a cleaning ball and a connecting pipe. Both ends of the condenser are provided with connecting heads for connecting the indoor unit and the outdoor unit of the air conditioner. The connecting head of the condenser used to connect the indoor unit of the air conditioner is provided with a stepped groove. The filter is clamped in the stepped groove for filtering the coolant. A connecting block is provided on the tube body of the condenser near one end of the indoor unit of the air conditioner. A storage box is provided at the end of the connecting block. The cleaning ball is placed in the storage box. The cleaning ball is used to remove the attachments on the inner wall of the condenser. One end of the connecting pipe is connected to the connecting block, and the other end of the connecting pipe is connected to the condenser through an electric three-way valve. The electric three-way valve is provided at one end of the condenser near the outdoor unit of the air conditioner. The electric three-way valve is used to control the connection state of the condenser and the connecting pipe.

[0006] Preferably, the power supply of the electric three-way valve is connected to the circuit of the air conditioner to provide power for the operation of the electric three-way valve.

[0007] Preferably, a ring array of limit blocks is provided on the inner wall of the condenser tube, and the limit blocks are located on the condenser tube between the filter screen and the electric three-way valve and close to the electric three-way valve, so as to limit the range of movement of the cleaning ball.

[0008] Preferably, a nut is provided at the port where the connecting pipe is connected to the connecting block, and the nut is sealingly sleeved on the port of the connecting pipe by means of threaded fitting.

[0009] Preferably, a plurality of annular hard scrapers are equidistantly distributed on the spherical surface of the cleaning ball, and a flexible wiping pad is fixedly arranged on the spherical surface of the cleaning ball, the outer diameter of the hard scraper is smaller than the inner wall diameter of the condenser, and the outer diameter of the flexible wiping pad is larger than the inner wall diameter of the condenser, the hard scraper is used to scrape off hard attachments on the inner wall of the condenser, and the flexible wiping pad is used to wipe off water stains on the inner wall of the condenser.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The cleaning ball can easily remove the attachments on the inner wall of the condenser tube, ensuring the cleanliness of the tube, thereby improving the operating efficiency and life of the air conditioner.

[0012] 2. The filter can filter out large particles of impurities in the condenser, which not only ensures the purity of the coolant, but also reduces the damage to the condenser, thereby extending its service life.

[0013] 3. The electric three-way valve controls the condenser to be disconnected from the air-conditioning outdoor unit and connected to the connecting pipe, so that the condenser and the connecting pipe form a complete loop to prevent the cleaning agent from entering the air-conditioning outdoor unit. In addition, the cleaning agent and liquid can be recovered to avoid environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the overall structure of a circulating cold air pipe that is easy to clean according to the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the filter screen and the nut in the utility model;

[0017] Figure 3 It is a cross-sectional view of the cleaning ball in the utility model;

[0018] Figure 4 It is a schematic diagram of the position structure of the limit card block in the utility model.

[0019] Figure numerals: 1. condenser; 2. filter; 3. cleaning ball; 4. connecting block; 5. storage box; 6. connecting pipe; 7. electric three-way valve; 8. nut; 9. connector; 11. limit block; 31. hard scraper; 32. flexible wiping pad. DETAILED DESCRIPTION

[0020] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0021] Reference below Figure 1-4 A circulating cold air pipe that is easy to clean according to an embodiment of the utility model is described, comprising a condenser 1, a filter 2, a cleaning ball 3 and a connecting pipe 6. Connectors 9 are provided at both ends of the condenser 1 for connecting the indoor unit and the outdoor unit of the air conditioner. The condenser 1 is provided with a step groove at the connecting head 9 for connecting the indoor unit of the air conditioner. The filter 2 is clamped in the step groove for filtering the coolant. A connecting block 4 is provided on the tube body of the condenser 1 near one end of the indoor unit of the air conditioner. A storage box 5 is provided at the end of the connecting block 4. The cleaning ball 3 is placed in the storage box 5. The cleaning ball 3 is placed in the storage box 5. The cleaning ball 3 is used to remove the attachments on the inner wall of the condenser 1. One end of the connecting pipe 6 is connected to the connecting block 4. The other end of the connecting pipe 6 is connected to the condenser 1 through an electric three-way valve 7. The electric three-way valve 7 is provided at one end of the condenser 1 near the outdoor unit of the air conditioner. The electric three-way valve 7 is used to control the connection state between the condenser 1 and the connecting pipe 6.

[0022] Specifically, the condenser 1 is responsible for connecting the indoor unit and the outdoor unit of the air conditioner and plays the role of transferring the coolant. When the coolant flows through the condenser 1, the filter 2 in the stepped groove will filter the coolant to ensure the purity of the coolant. The cleaning ball 3 is located in the storage box 5, and its main function is to remove the attachments on the inner wall of the condenser 1. When the air-conditioning condenser 1 is used for a long time and attachments are generated on the inner wall, since the air-conditioning outdoor unit connector needs to be disassembled at high altitude, it is only necessary to remove the connector connecting the condenser 1 and the air-conditioning indoor unit, remove the filter 2, and put the cleaning ball 3 into the condenser 1 for cleaning. At this time, the electric three-way valve 7 controls the condenser 1 to be disconnected from the air-conditioning outdoor unit and connected to the connecting pipe 6, so that the condenser 1 and the connecting pipe 6 form a complete loop to prevent the cleaning agent from entering the air-conditioning outdoor unit. Moreover, the cleaning agent and liquid can be recovered to avoid environmental pollution.

[0023] In this embodiment, the attachments on the inner wall of the condenser 1 can be easily removed by the cleaning ball 3 to ensure the cleanliness of the inside of the tube, thereby improving the operating efficiency and life of the air conditioner. The filter 2 can filter out large particles of impurities in the condenser, which not only ensures the purity of the coolant, but also reduces the damage to the condenser 1, thereby extending its service life. The electric three-way valve 7 provides a convenient method to control the connectivity between the condenser 1 and the connecting pipe 6, thereby switching to the cleaning mode or the normal operating mode when needed, thereby enhancing the flexibility and reliability of the system. In actual use, by adding the cleaning ball 3, the filter 2 and the electric three-way valve 7, the cleaning and maintenance process is simplified and the user experience is improved.

[0024] In a preferred embodiment, the power supply of the electric three-way valve 7 is connected to the circuit of the air conditioner to provide power for the operation of the electric three-way valve 7. In operation, when the condenser 1 works normally, the electric three-way valve 7 controls the condenser 1 to connect the indoor unit of the air conditioner with the outdoor unit of the air conditioner, and the connecting pipe 6 is disconnected. When the condenser 1 needs to be cleaned, the electric three-way valve 7 controls the condenser 1 to disconnect from the outdoor unit of the air conditioner and connect with the connecting pipe 6, so that the condenser 1 and the connecting pipe 6 form a complete loop.

[0025] In a preferred embodiment, a limiting block 11 is provided in an annular array on the inner wall of the condenser 1. The limiting block 11 is located on the condenser 1 between the filter screen 2 and the electric three-way valve 7 and is close to the electric three-way valve 7 to limit the range of movement of the cleaning ball 3. During operation, the cleaning ball 3 moves in the condenser 1 to clean the inside of the tube. The existence of the limiting block 11 ensures that the cleaning ball 3 will not exceed its proper range of movement. Since the limiting block 11 is close to the electric three-way valve 7 and is located between the filter screen 2 and the electric three-way valve 7, the cleaning ball 3 will not contact these two components to prevent possible blockage or damage. The electric three-way valve 7 can change the flow direction in the condenser 1 as needed, thereby affecting the movement path of the cleaning ball 3. Among them, the cleaning ball 3 can move freely in the condenser 1, effectively removing impurities or sediments on the inner wall of the pipe. The limit block 11 ensures that the cleaning ball 3 will not mistakenly enter the electric three-way valve 7 or collide with the filter 2, thereby protecting these important components from damage. Through effective restriction and guidance, the cleaning ball 3 can work efficiently in a predetermined area, reducing the risk of unexpected failures. Due to the mutual protection and efficient operation between components, the maintenance requirements and losses of the entire system are effectively reduced, thereby increasing its service life.

[0026] In a preferred embodiment, a nut 8 is provided at the port where the connecting pipe 6 is connected to the connecting block 4, and the nut 8 is sealed and sleeved on the port of the connecting pipe 6 by means of threaded matching. The use of the nut 8 and the threaded matching method makes installation or disassembly easier, and does not require special tools or skills, and only needs to be rotated in the direction of the thread. In addition, the presence of the nut 8 can prevent impurities such as dust from entering the connecting pipe 6.

[0027] In a preferred embodiment, a plurality of annular hard scrapers 31 are evenly distributed on the spherical surface of the cleaning ball 3, and a flexible wiping pad 32 is fixedly arranged on the spherical surface of the cleaning ball 3, the outer diameter of the hard scraper 31 is smaller than the inner wall diameter of the condenser 1, and the outer diameter of the flexible wiping pad 32 is larger than the inner wall diameter of the condenser 1, the hard scraper 31 is used to scrape off hard attachments on the inner wall of the condenser 1, and the flexible wiping pad 32 is used to wipe off water stains on the inner wall of the condenser 1.

[0028] In this embodiment, the combination of the hard scraper 31 and the flexible wiping pad 32 allows the cleaning ball 3 to remove both hard attachments and water stains, thereby achieving comprehensive cleaning of the condenser 1. Regularly removing attachments and water stains in the condenser 1 can avoid corrosion and accumulation, thereby extending the service life of the condenser. Keeping the inner wall of the condenser 1 clean helps to improve the heat exchange efficiency. Using the cleaning ball 3 for cleaning reduces frequent manual cleaning or other complicated cleaning procedures, thereby reducing maintenance costs.

[0029] In a specific implementation manner: the condenser 1 is responsible for connecting the indoor unit and the outdoor unit of the air conditioner, and plays the role of transferring the coolant. When the coolant flows through the condenser 1, the filter screen 2 in the stepped groove will filter the coolant to ensure the purity of the coolant. The cleaning ball 3 is located in the storage box 5, and its main function is to remove the attachments on the inner wall of the condenser 1. When the air-conditioning condenser 1 is used for a long time and attachments are generated on the inner wall, since the air-conditioning outdoor unit connection head needs to be disassembled at high altitude, it is only necessary to remove the connection head connecting the condenser 1 and the air-conditioning indoor unit, remove the filter screen 2, and put the cleaning ball 3 into the condenser 1 for cleaning. At this time, the electric three-way valve 7 controls the condenser 1 to be disconnected from the air-conditioning outdoor unit and connected to the connecting pipe 6, so that the condenser 1 and the connecting pipe 6 form a complete loop, which prevents the cleaning agent from entering the air-conditioning outdoor unit, and can enter Recycling of cleaning agents and liquids to avoid environmental pollution. When the condenser 1 is working normally, the electric three-way valve 7 controls the condenser 1 to connect the air-conditioning indoor unit and the air-conditioning outdoor unit, and the connecting pipe 6 is disconnected. When the condenser 1 needs to be cleaned, the electric three-way valve 7 controls the condenser 1 to be disconnected from the air-conditioning outdoor unit and connected to the connecting pipe 6, so that the condenser 1 and the connecting pipe 6 form a complete loop. The cleaning ball 3 moves in the condenser 1 to clean the inside of the tube. The presence of the limit block 11 ensures that the cleaning ball 3 will not exceed its proper range of movement. Since the limit block 11 is close to the electric three-way valve 7 and is located between the filter screen 2 and the electric three-way valve 7, the cleaning ball 3 will not contact these two components to prevent possible blockage or damage. The electric three-way valve 7 can change the flow direction in the condenser 1 as needed, thereby affecting the movement path of the cleaning ball 3. Among them, the cleaning ball 3 can move freely in the condenser 1, effectively removing impurities or sediments on the inner wall of the pipe. The limit block 11 ensures that the cleaning ball 3 will not mistakenly enter the electric three-way valve 7 or collide with the filter 2, thereby protecting these important components from damage. Through effective restriction and guidance, the cleaning ball 3 can work efficiently in a predetermined area, reducing the risk of unexpected failures. Due to the mutual protection and efficient operation between components, the maintenance requirements and losses of the entire system are effectively reduced, thereby increasing its service life.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A circulating cold air pipe that is easy to clean, characterized in that: include: A condenser (1), wherein both ends of the condenser (1) are provided with connectors (9) for connecting an indoor unit and an outdoor unit of an air conditioner; A filter screen (2), wherein a step groove is provided at a connector (9) of the condenser tube (1) for connecting to an indoor unit of an air conditioner, and the filter screen (2) is clamped in the step groove for filtering the coolant; A cleaning ball (3), a connecting block (4) is provided on the tube body of the condenser tube (1) at one end close to the indoor unit of the air conditioner, a storage box (5) is provided at the end of the connecting block (4), the cleaning ball (3) is placed in the storage box (5), and the cleaning ball (3) is used to remove the attachments on the inner wall of the condenser tube (1); A connecting pipe (6), one end of the connecting pipe (6) is connected to the connecting block (4), and the other end of the connecting pipe (6) is connected to the condensing pipe (1) via an electric three-way valve (7). The electric three-way valve (7) is arranged at one end of the condensing pipe (1) close to the outdoor unit of the air conditioner, and the electric three-way valve (7) is used to control the connection state between the condensing pipe (1) and the connecting pipe (6).

2. The easy-to-clean circulating cold air pipe according to claim 1, characterized in that: The power supply of the electric three-way valve (7) is connected to the circuit of the air conditioner, so as to provide power for the operation of the electric three-way valve (7).

3. The easy-to-clean circulating cold air pipe according to claim 2, characterized in that: A limiting block (11) is provided in a circular array on the inner wall of the condenser tube (1). The limiting block (11) is located on the condenser tube (1) between the filter screen (2) and the electric three-way valve (7) and is close to the electric three-way valve (7) and is used to limit the range of movement of the cleaning ball (3).

4. The easy-to-clean circulating cold air pipe according to claim 3, characterized in that: A nut (8) is provided at the port where the connecting pipe (6) is connected to the connecting block (4), and the nut (8) is sealed and sleeved on the port of the connecting pipe (6) by means of threaded engagement.

5. The easy-to-clean circulating cold air pipe according to claim 4, characterized in that: A plurality of annular hard scrapers (31) are evenly distributed on the spherical surface of the cleaning ball (3), and a flexible wiping pad (32) is fixedly arranged on the spherical surface of the cleaning ball (3), the outer diameter of the hard scraper (31) is smaller than the inner wall diameter of the condenser (1), and the outer diameter of the flexible wiping pad (32) is larger than the inner wall diameter of the condenser (1), the hard scraper (31) is used to scrape off hard attachments on the inner wall of the condenser (1), and the flexible wiping pad (32) is used to wipe off water stains on the inner wall of the condenser (1).

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