Air-cooled screw water chiller

Abstract

This application relates to the technical field of air conditioning units, and in particular to an air-cooled screw chiller unit, which includes a chiller unit body and an air inlet disposed on the chiller unit body. The air inlet has a horizontal dustproof pipe with a dustproof mesh on its sidewalls that fits against the inner wall of the dustproof pipe. A drying cylinder containing multiple drying balls and with vent holes at both the end cap and the bottom of the cylinder is threadedly connected inside the dustproof pipe. There is a cleaning arc between the drying cylinder and the dustproof mesh. A sealing arc plate and a sealing gasket are connected to the dustproof mesh to seal the cleaning arc. There is a sliding perforated plate inside the dustproof pipe with a pin that can penetrate the vent holes of the drying cylinder. There are auxiliary structural components such as guide rails and cylinders moving inside and outside the dustproof pipe. One end of the dustproof pipe also has a rubber plug connected by a connecting rope to block the opening. This application achieves the technical effect of dustproofing and drying the air entering the chiller unit, facilitating the cleaning and maintenance of the air intake protection components, and ensuring the normal operation of the chiller unit.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning units, and in particular to an air-cooled screw chiller unit. Background Technology

[0002] Air-cooled screw chillers are named for their key component—the compressor—which uses a screw mechanism. The refrigerant, initially a gaseous substance from the evaporator, is adiabatically compressed by the compressor, becoming high-temperature, high-pressure. This compressed gaseous refrigerant then undergoes isobaric cooling and condensation in the condenser, transforming into a liquid refrigerant. The gaseous refrigerant then re-enters the compressor through piping, beginning a new cycle. This is the refrigeration cycle process and the main working principle of a screw chiller.

[0003] Chinese patent CN222123526U discloses an air-cooled screw chiller unit, including a lower fixed frame, an upper fixed frame fixed to the upper surface of the lower fixed frame, two air inlets connected to the upper end of the upper fixed frame, a cooling fan fixed inside each of the two air inlets by bolts, four protective nets symmetrically fixed to the outer wall of the upper fixed frame, two heat sinks fixed inside the upper fixed frame, a heat-conducting copper pipe fixed inside each of the two heat sinks, a circulation pipe fixed inside the heat-conducting copper pipe, and fixed flange pipes fixed to both ends of the circulation pipe.

[0004] However, in practical applications, it has been found that dust and other impurities in the air can easily enter the unit through the air inlet, causing dust to accumulate on components such as heat sinks and heat-conducting copper pipes, thus affecting the heat dissipation effect. Utility Model Content

[0005] In order to reduce the possibility of dust and other impurities entering the unit through the air inlet and affecting the heat dissipation effect, this application provides an air-cooled screw chiller unit.

[0006] The air-cooled screw chiller unit provided in this application adopts the following technical solution:

[0007] An air-cooled screw chiller unit includes a chiller unit body and an air inlet disposed on the chiller unit body. The air inlet is provided with a dustproof pipe, which is horizontally arranged. A dustproof net is provided on the dustproof pipe, and the side wall of the dustproof net is attached to the inner wall of the dustproof pipe.

[0008] By adopting the above technical solution, a horizontal dustproof pipe is installed at the air inlet, and a dustproof net that fits against the inner wall of the pipe is installed on the dustproof pipe. This can effectively block dust from entering the chiller unit with the air and reduce the possibility that dust and other impurities will enter the unit through the air inlet and affect the heat dissipation effect.

[0009] Preferably, the dustproof tube is provided with a drying cylinder threadedly connected inside, the drying cylinder is provided with multiple drying balls, one end of the opening of the drying cylinder is threadedly connected to an end cap, and both the end cap and the bottom of the drying cylinder are provided with multiple vent holes.

[0010] By adopting the above technical solution, a threaded drying cylinder is installed inside the dustproof pipe of the air-cooled screw chiller unit. Multiple drying balls are placed inside the cylinder, and multiple vent holes are opened on both the end cap and the bottom of the cylinder. This allows for the drying of the air entering the chiller unit. Because humid air easily attracts fine dust particles to the filter screen, causing clogging, dry air avoids this problem, ensuring smooth airflow and thus improving the air intake of the air-cooled screw chiller unit, thereby increasing the unit's operating efficiency.

[0011] Preferably, a cleaning arc opening is provided between the drying cylinder and the dustproof net, a sealing arc plate is hinged on the dustproof pipe, a sealing gasket is connected to the sealing arc plate, and the sealing gasket is inserted into the cleaning arc opening and seals the cleaning arc opening.

[0012] By adopting the above technical solution, the setting of cleaning arc, sealing arc plate and sealing gasket can open the sealing arc plate to clean the inside of the dustproof pipe when needed, and the sealing gasket can block the cleaning arc to ensure the sealing performance of the equipment during normal operation.

[0013] Preferably, the inner wall of the dustproof tube is provided with a guide rail, which is arranged along the length of the dustproof tube. A perforated plate is slidably connected inside the dustproof tube. The perforated plate is located between the dustproof net and the drying cylinder. A sliding groove is opened on the perforated plate to slide with the guide rail. A plurality of vent holes on the end cap are arranged one-to-one with a plurality of vent holes at the bottom of the drying cylinder. A pin is provided on the perforated plate that is arranged one-to-one with a plurality of vent holes. The pin passes through the drying cylinder and exits through the vent hole at the bottom of the drying cylinder.

[0014] By adopting the above technical solution, the guide rail on the inner wall of the dustproof pipe guides the perforated plate to slide along the length of the dustproof pipe, allowing the perforated plate to move between the dustproof net and the drying cylinder. When the perforated plate slides, the sliding groove on it slides in cooperation with the guide rail, ensuring the stability of the perforated plate's sliding. At the same time, the pins on the perforated plate will penetrate the drying cylinder as the perforated plate moves and exit through the vent hole at the bottom of the drying cylinder, which can clean and unclog the vent hole, ensuring smooth airflow inside and outside the drying cylinder.

[0015] Preferably, the inner wall of the dustproof tube is provided with multiple guide rails, which are evenly distributed along the circumference of the dustproof tube.

[0016] By adopting the above technical solution, multiple guide rails are evenly distributed along the circumference of the dustproof tube, which makes the perforated plate more stable when sliding inside the dustproof tube and improves the stability of the overall structure.

[0017] Preferably, the outer wall of the dustproof pipe is provided with a cylinder, the piston rod of the cylinder is provided with a connecting block, the connecting block is embedded with a magnetic block, the perforated plate is made of iron, and the magnetic block attracts the perforated plate.

[0018] By adopting the above technical solution, a connecting block with a magnetic block is provided on the cylinder piston rod to attract the iron orifice plate, which can control the movement of the orifice plate in the dustproof tube, thereby driving the ejector pin to pass through the air hole of the drying cylinder, making it easier to clean the blockage of the air hole.

[0019] Preferably, the bottom of the connecting block is provided with multiple ball grooves, and each of the multiple ball grooves is provided with a ball bearing, which contacts the outer wall of the dustproof tube.

[0020] By adopting the above technical solution, multiple ball grooves are opened at the bottom of the connecting block and ball bearings are set, and the ball bearings are made to contact the outer wall of the dustproof tube, which can reduce the friction between the connecting block and the outer wall of the dustproof tube, making the connecting block move more smoothly.

[0021] Preferably, one end of the dustproof tube is connected to a rubber stopper via a connecting rope, and the rubber stopper blocks the opening of the dustproof tube.

[0022] By adopting the above technical solution, dust can be prevented from entering the chiller unit by installing a dustproof pipe and a dustproof net at the air inlet. A rubber plug is connected to one end of the dustproof pipe by a connecting rope to block the opening of the dustproof pipe, which can prevent external impurities from entering the dustproof pipe when the unit is not in use.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The air inlet is equipped with a dustproof pipe and a dustproof screen, which can efficiently filter dust particles, improve the filtration effect, ensure that the unit is not disturbed by dust, and extend its service life; 2. The dustproof pipe contains a drying cylinder and a drying ball, which can reduce the humidity of the incoming air, create suitable working humidity conditions for the unit, and reduce malfunctions caused by humidity; 3. The cylinder pushes the orifice plate to make the ejector pin clean the air vent of the drying cylinder, keep the air vent unobstructed, ensure smooth air intake, and avoid affecting the performance of the unit due to blockage of the air vent. Attached Figure Description

[0024] Figure 1 This is a structural diagram of this application.

[0025] Figure 2 This is a schematic diagram of the structure of the dustproof tube, sealing arc plate and fastener in the embodiments of this application.

[0026] Figure 3 This is a cross-sectional view of the internal structure of the dustproof tube and the drying cylinder in the embodiments of this application.

[0027] Figure 4 This is a schematic diagram of the drying cylinder structure in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Chiller unit body; 2. Air inlet; 3. Bend; 4. Dustproof pipe; 5. Dustproof net; 6. Drying cylinder; 7. First handle; 8. Drying ball; 9. End cap; 10. Second handle; 11. Vent hole; 12. Cleaning arc; 13. Sealing arc plate; 14. Sealing gasket; 15. Fastener; 16. Guide rail; 17. Orifice plate; 18. Sliding groove; 19. Ejector pin; 20. Cylinder; 21. Connecting block; 22. Magnetic block; 24. Ball bearing; 25. Connecting rope; 26. Rubber plug. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses an air-cooled screw chiller unit. (Refer to...) Figure 1 , Figure 2 and Figure 3 This application provides an air-cooled screw chiller unit, including a chiller unit body 1 and an air inlet 2 disposed on the chiller unit body 1. A horizontally arranged dustproof pipe 4 is provided at the air inlet 2, connected to the air inlet 2 via a bend 3 to ensure the horizontal arrangement of the dustproof pipe 4. A dustproof net 5 is provided on the dustproof pipe 4, with the sidewall of the dustproof net 5 adhering to the inner wall of the dustproof pipe 4. This structure effectively prevents dust from entering the chiller unit body 1, avoiding damage to internal components and improving the unit's service life and operational stability. Because the dustproof net 5 is adhering to the inner wall of the dustproof pipe 4, it maximizes the filtration of air entering the dustproof pipe 4.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The dustproof pipe 4, as an important component, is made of high-strength plastic, which has the advantages of being lightweight and low-cost. The dustproof pipe 4 is fixed to the air inlet 2 by bolts. The dustproof mesh 5 can be made of woven metal wire, such as stainless steel wire, which has high strength and is not easily damaged. The dustproof mesh 5 is generally circular in shape to fit the circular dustproof pipe 4, and its sidewalls are glued to the inner wall of the dustproof pipe 4.

[0032] Reference Figure 2 , Figure 3 and Figure 4A drying cylinder 6 is threadedly connected to the end of the dustproof tube 4 away from the bend 3. A first handle 7 is connected to the bottom of the drying cylinder 6. Multiple drying balls 8 are arranged inside the drying cylinder 6. An end cap 9 is threadedly connected to the open end of the drying cylinder 6. A second handle 10 is connected to the end cap 9. Multiple vent holes 11 are opened on both the end cap 9 and the bottom of the drying cylinder 6. The multiple vent holes 11 on the end cap 9 correspond one-to-one with the multiple vent holes 11 on the bottom of the drying cylinder 6. The drying cylinder 6 can be made of plastic, which is lightweight and inexpensive. The drying balls 8 can be made of silica gel, which has strong water absorption capacity and is renewable; or they can be made of montmorillonite, which is environmentally friendly and inexpensive. The end cap 9 is connected to the drying cylinder 6 by a screw rotation, making it easy to open and replace the drying balls 8. The function of the vent holes 11 is to allow air to pass smoothly through the drying cylinder 6 while preventing the drying balls 8 from falling out. When air passes through the drying cylinder 6, the drying ball 8 absorbs the moisture in the air, thus drying the air and reducing the corrosion of the internal components of the chiller by humid air. In addition, because humid air easily adsorbs fine dust on the filter screen, causing the mesh to become clogged, dry air can avoid this problem, ensuring that air passes through smoothly, thereby making the air intake of the air-cooled screw chiller unit smoother and improving the unit's operating efficiency.

[0033] Reference Figure 2 and Figure 3 A cleaning arc 12 is provided between the drying cylinder 6 and the dustproof net 5. The cleaning arc 12 is opened on the dustproof pipe 4. A sealing arc plate 13 is hinged on the dustproof pipe 4. A sealing gasket 14 is connected to the sealing arc plate 13. The sealing gasket 14 is inserted into the cleaning arc 12 and seals the cleaning arc 12. One end of the sealing plate is connected to the side wall of the dustproof pipe 4 through a buckle 15.

[0034] Reference Figure 2 and Figure 3 The cleaning arc 12 is semi-circular, which facilitates the cleaning of dust accumulated inside the dustproof pipe 4. It also allows the operator to easily clean the dust on the dustproof mesh 5 with a brush after opening the sealing plate. The sealing arc plate 13 can be made of plastic, which is lightweight and easy to operate.

[0035] Referring to the figure, multiple guide rails 16 are provided on the inner wall of the dustproof tube 4. The multiple guide rails 16 are evenly distributed along the circumference of the dustproof tube 4 and are all arranged along the length of the dustproof tube 4. A perforated plate 17 is slidably connected inside the dustproof tube 4. The perforated plate 17 is located between the dustproof net 5 and the drying cylinder 6. The perforated plate 17 has sliding grooves 18 that correspond one-to-one with the multiple guide rails 16 and are slidably engaged. The perforated plate 17 is provided with ejector pins 19 that correspond one-to-one with the multiple vent holes 11. The ejector pins 19 penetrate the drying cylinder 6 and exit through the vent holes 11 at the bottom of the drying cylinder 6. The cooperation between the sliding grooves 18 and the guide rails 16 allows the perforated plate 17 to slide smoothly inside the dustproof tube 4. The ejector pin 19 can be made of stainless steel, which is not easy to rust. When the orifice plate 17 slides, the ejector pin 19 can pass through the vent hole 11 to prevent the vent hole 11 from being blocked and to ensure air circulation. Multiple guide rails 16 can more stably support the sliding of the orifice plate 17, making the sliding of the orifice plate 17 smoother and more stable.

[0036] Reference Figure 2 and Figure 3 A cylinder 20 is installed on the outer wall of the dustproof pipe 4. A connecting block 21 is installed on the piston rod of the cylinder 20, and a magnetic block 22 is embedded in the connecting block 21. The perforated plate 17 is made of iron, and the magnetic block 22 attracts the perforated plate 17. The cylinder 20 can be a pneumatic cylinder 20, which has strong power; or it can be an electric cylinder 20, which has high control precision. The magnetic block 22 has a strong magnetic force and can firmly attract the iron perforated plate 17. When the piston rod of the cylinder 20 extends or retracts, it drives the perforated plate 17 to slide inside the dustproof pipe 4 through the connecting block 21 and the magnetic block 22.

[0037] Reference Figure 2 and Figure 3 The bottom of the connecting block 21 has multiple ball grooves (not shown in the figure), each containing a ball bearing 24. The ball bearing 24 contacts the outer wall of the dustproof pipe 4. The ball bearing 24 can be made of stainless steel, which has good wear resistance. The function of the ball grooves is to accommodate the ball bearing 24 and limit its rolling range. The contact between the ball bearing 24 and the outer wall of the dustproof pipe 4 reduces the friction between the connecting block 21 and the dustproof pipe 4, making the movement of the connecting block 21 easier and improving the operating efficiency of the equipment.

[0038] Reference Figure 1 , Figure 2 and Figure 3 One end of the dustproof pipe 4 is connected to a rubber plug 26 via a connecting rope 25. The rubber plug 26 blocks the opening of the dustproof pipe 4. The connecting rope 25 can be a nylon rope, which is strong and flexible. The rubber plug 26 can effectively block the opening of the dustproof pipe 4, preventing dust and debris from entering the dustproof pipe 4 when the equipment is not running. When it is necessary to inspect or maintain the inside of the dustproof pipe 4, the rubber plug 26 can be removed.

[0039] The implementation principle of this embodiment is as follows: This air-cooled screw chiller unit effectively solves the problems existing in the air intake process of traditional air-cooled screw chillers by setting up a dustproof pipe 4, a dustproof net 5, and a drying cylinder 6 at the air inlet 2. The dustproof net 5 can block most of the dust, and the drying cylinder 6 can dry the air, reducing the damage of humid air to the unit. The cleaning arc 12 facilitates dust cleaning, and the setting of the perforated plate 17 and guide rail 16 can prevent the vent 11 from being blocked, ensuring air circulation. The cylinder 20 and the magnetic block 22 drive the perforated plate 17 to slide, improving the automation level of the equipment. The setting of the ball bearing 24 reduces friction and improves the operating efficiency of the equipment. The rubber plug can prevent dust and debris from entering the dustproof pipe 4 when the equipment is not running. Compared with traditional chillers, these improvements can greatly improve the cooling efficiency of the unit, reduce energy consumption, extend service life, reduce maintenance costs and downtime, and improve the reliability and stability of the equipment.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An air-cooled screw water chiller comprising a water chiller body (1) and an air inlet (2) arranged on the water chiller body (1), characterized in that, The air inlet (2) is provided with a dustproof pipe (4), which is horizontally arranged. A dustproof net (5) is provided on the dustproof pipe (4), and the side wall of the dustproof net (5) is attached to the inner wall of the dustproof pipe (4). A drying cylinder (6) is threadedly connected inside the dustproof pipe (4), and multiple drying balls (8) are provided inside the drying cylinder (6). An end cap (9) is threadedly connected to one end of the opening of the drying cylinder (6), and multiple ventilation holes (11) are opened on the end cap (9) and the bottom of the drying cylinder (6).

2. The air-cooled screw water chiller according to claim 1, characterized in that, A cleaning arc opening (12) is provided between the drying cylinder (6) and the dustproof net (5). A sealing arc plate (13) is hinged on the dustproof pipe (4). A sealing gasket (14) is connected to the sealing arc plate (13). The sealing gasket (14) is inserted into the cleaning arc opening (12) and seals the cleaning arc opening (12).

3. The air-cooled screw water chiller according to claim 2, characterized in that, The inner wall of the dustproof tube (4) is provided with a guide rail (16), which is arranged along the length of the dustproof tube (4). A perforated plate (17) is slidably connected inside the dustproof tube (4). The perforated plate (17) is located between the dustproof net (5) and the drying cylinder (6). A sliding groove (18) is opened on the perforated plate (17) to slide with the guide rail (16). A plurality of ventilation holes (11) on the end cap (9) are arranged one-to-one with a plurality of ventilation holes (11) at the bottom of the drying cylinder (6). A pin (19) is provided on the perforated plate (17) to correspond one-to-one with a plurality of ventilation holes (11). The pin (19) passes through the drying cylinder (6) and exits from the ventilation hole (11) at the bottom of the drying cylinder (6).

4. The air-cooled screw chiller unit according to claim 3, characterized in that, Multiple guide rails (16) are provided on the inner wall of the dustproof tube (4), and the multiple guide rails (16) are evenly distributed along the circumference of the dustproof tube (4).

5. The air-cooled screw water chiller according to claim 3, wherein, The outer wall of the dustproof pipe (4) is provided with a cylinder (20), the piston rod of the cylinder (20) is provided with a connecting block (21), the connecting block (21) is embedded with a magnetic block (22), the perforated plate (17) is made of iron, and the magnetic block (22) attracts the perforated plate (17).

6. The air-cooled screw water chiller according to claim 5, characterized in that, The bottom of the connecting block (21) is provided with multiple ball grooves, and each of the multiple ball grooves is provided with a ball (24), which contacts the outer wall of the dustproof tube (4).

7. The air-cooled screw water chiller according to claim 1, wherein, One end of the dustproof tube (4) is connected to a rubber stopper (26) via a connecting rope (25), and the rubber stopper (26) blocks the opening of the dustproof tube (4).

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