A pipe connection device for the evaporator of a tube ice machine

Abstract

A pipe connection device for an evaporator in a tube ice machine, belonging to the field of pipe connection technology, includes a horizontal pipe with connecting pipes at both ends. One end of the connecting pipe is connected to the horizontal pipe via a movable joint, and the other end has an external thread. An outer pipe is fixedly fitted around the outer circumference of the horizontal pipe, forming a jacketed cavity isolated from the outside. A movable pipe is airtightly slidably installed inside the horizontal pipe. An annular filter plate is fixedly installed inside the jacketed cavity, dividing the jacketed cavity into a left cavity and a right cavity. This invention has a simple structure and ingenious design. The connecting pipes are connected to the horizontal pipe via movable joints, making disassembly and installation convenient and facilitating the cleaning of filter material and scale inside the horizontal pipe. The filter plate filters the water. When there is too much filter material, water pressure is used to open a backup flow channel and collect the filter material in the left cavity before restoring the initial flow channel. This reduces blockage of the horizontal pipe and the frequency of cleaning, meeting market demands and making it suitable for widespread application.

Description

Technical Field

[0001] This invention belongs to the field of pipe connection technology, specifically a pipe connection device for the evaporator of a tube ice machine. Background Technology

[0002] The evaporator piping of a tube ice machine typically involves refrigerant piping and water circulation piping. The refrigerant piping connects the evaporator to the compressor, condenser, and expansion valve to form a refrigeration cycle, including a refrigerant inlet pipe (high-pressure liquid) and an outlet pipe (low-pressure gaseous). The water circulation piping connects the evaporator to the water system (water pump, water tank, spray system), responsible for water supply, spraying, and drainage. It also includes a hot water or hot gas bypass pipe for de-icing (used to assist in de-icing). The water circulation piping is prone to scaling, requiring frequent cleaning and subsequent disassembly and reassembly. Therefore, quick-connect fittings are typically used. Existing pipe connection devices have internal filters to reduce scale flow and minimize its adverse effects on subsequent piping. However, long-term scale buildup affects the normal operation of the pipes, requiring manual cleaning. To address these issues, we have invented a pipe connection device. Summary of the Invention

[0003] This invention provides a pipe connection device for the evaporator of a tube ice machine, which addresses the deficiencies in the prior art.

[0004] This invention is achieved through the following technical solution:

[0005] A pipe connection device for an evaporator of a tube ice machine includes a horizontal pipe with connecting pipes at both ends. One end of the connecting pipe is connected to the horizontal pipe via a movable joint, and the other end is provided with an external thread. An outer pipe is fixedly fitted around the outer periphery of the horizontal pipe, forming a jacketed cavity isolated from the outside. A movable pipe is airtightly slidably installed inside the horizontal pipe. An annular filter plate is fixedly installed inside the jacketed cavity, dividing the jacketed cavity into a left cavity and a right cavity. A filter plate is fixedly installed at one end of the movable pipe. A slag collection port communicating with the left cavity and a return water port communicating with the right cavity are opened on the horizontal pipe. A return water hole communicating with the return water port is opened on the movable pipe. The movable pipe and the horizontal pipe are connected by a reset elastic element.

[0006] As described above, in a pipe connection device for an evaporator of a tube ice machine, the reset elastic element is a spring telescopic rod, a stop rod is fixedly installed on the moving pipe, the stop rod can slide left and right in the return water port, one end of the stop rod is fixedly connected to the spring telescopic rod, and the other end of the spring telescopic rod is fixedly connected to the horizontal pipe.

[0007] As described above, a pipe connection device for an evaporator of a tube ice machine has an internally threaded pipe slidingly disposed in the right cavity. A screw is installed in the internal thread of the internally threaded pipe. One end of the screw extends out of the outer pipe through a reserved hole on the outer pipe, and the screw and the outer pipe are connected by a rotational seal. Two levers are fixedly installed on the internally threaded pipe, and a stop bar is located between the two levers.

[0008] As described above, a pipe connection device for an evaporator of a tube ice machine includes a sleeve that is slidably fitted onto a connecting pipe. The end of a horizontal pipe is inserted into the sleeve. A sealing gasket is fixedly provided at the end of the connecting pipe and is clamped between the connecting pipe and the horizontal pipe. A through hole is provided on the sleeve, and a retaining bead is movably provided in the through hole. The retaining bead can only move radially along the sleeve within the through hole. A groove is provided on the horizontal pipe corresponding to the retaining bead. A slip ring is slidably fitted on the outer periphery of the sleeve to prevent the retaining bead from moving out of the groove. The slip ring is connected to the sleeve by a return spring.

[0009] As described above, in a pipe connection device for an evaporator of a tube ice machine, a transverse sliding groove is provided on the inner wall of the sleeve, and a sliding rod is slidably provided in the transverse sliding groove and fixed on the connecting pipe.

[0010] As described above, a pipe connection device for an evaporator of a tube ice machine has a slag discharge port on the outer pipe that communicates with the left cavity, and a sealing cap is installed in the slag discharge port with internal thread fitting.

[0011] As described above, in a pipe connection device for an evaporator of a tube ice machine, the slot is an annular groove coaxial with the horizontal pipe, and the cross-section of the annular groove is a curved surface that can fit with the locking bead.

[0012] The advantages of this invention are: the invention has a simple structure and ingenious design. The connecting pipe and the horizontal pipe are connected by a movable joint, making disassembly and installation convenient and facilitating the cleaning of filter material and scale inside the horizontal pipe. The filter plate filters the water. When there is too much filter material, the water pressure is used to open the backup flow channel and collect the filter material in the left cavity before restoring the initial flow channel. This reduces the blockage of the horizontal pipe and the frequency of cleaning the horizontal pipe, which can meet market demand and is suitable for promotion. Attached Figure Description

[0013] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Enlarged view of section I; Figure 3 yes Figure 1 A magnified view of section II.

[0015] Reference numerals: 1. Horizontal pipe; 2. Connecting pipe; 3. Outer pipe; 4. Jacket cavity; 5. Moving pipe; 6. Annular filter plate; 7. Filter plate; 8. Slag collection port; 9. Return water port; 10. Return water hole; 11. Reset elastic element; 20. Stop bar; 30. Internally threaded pipe; 31. Screw; 32. Toggle bar; 40. Sleeve; 41. Sealing gasket ring; 42. Through hole; 43. Clamping bead; 44. Clamping groove; 45. Slip ring; 46. Reset spring; 50. Horizontal sliding groove; 51. Sliding rod; 60. Slag discharge port; 61. Sealing cover. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] A pipe connection device for the evaporator of a tube ice machine, such as Figure 1 , Figure 2 , Figure 3As shown, the system includes a horizontal pipe 1, with connecting pipes 2 at both ends. Both the horizontal pipe 1 and the connecting pipes 2 are round pipes. One end of the connecting pipe 2 is connected to the horizontal pipe 1 via a movable joint, and the other end is threaded for connection with pipe threads. An outer pipe 3 is fixedly fitted around the outer circumference of the horizontal pipe 1. The inner holes at both ends of the outer pipe 3 are sealed and fixedly connected to the outer circumference of the horizontal pipe 1. A jacketed cavity 4, isolated from the outside, is formed between the horizontal pipe 1 and the outer pipe 3. A movable pipe 5 is airtightly and slidably installed inside the horizontal pipe 1. The outer circumference of the movable pipe 5 is airtightly and slidably in contact with the inner circumference of the horizontal pipe 1. The horizontal pipe 1, connecting pipe 2, outer pipe 3, and movable pipe 5 are coaxially arranged. An annular filter plate 6 is fixedly installed inside the jacketed cavity 4. The filter plate 6 divides the jacket cavity 4 into a left cavity and a right cavity. The annular filter plate 6 is an annular plate with filter holes. The inner circumference of the annular plate is fixedly connected to the outer circumference of the horizontal pipe 1, and the outer circumference is fixedly connected to the inner circumference of the outer pipe 3. One end of the moving pipe 5 is fixedly provided with a filter plate 7. The filter plate 7 seals the left end of the moving pipe 5. The filter plate 7 is a circular plate with filter holes. The horizontal pipe 1 has a slag collection port 8 connected to the left cavity and a return water port 9 connected to the right cavity. The moving pipe 5 has a return water hole 10 that can be connected to the return water port 9. In the initial state, the moving pipe 5 blocks the slag collection port 8 and the return water port 9, and the horizontal pipe 1 blocks the return water hole 10. The moving pipe 5 and the horizontal pipe 1 are connected by a reset elastic member 11. This invention has a simple structure and ingenious design. The connecting pipe 2 and the horizontal pipe 1 are connected by a movable joint, which makes disassembly and installation convenient and facilitates cleaning of the filtered material and scale inside the horizontal pipe 1. The filter plate 7 filters the water. When there is too much filtered material, the water pressure is used to open the backup flow channel and collect the filtered material in the left cavity, and then restore the initial flow channel, thereby reducing the blockage of the horizontal pipe 1 and reducing the frequency of cleaning the horizontal pipe 1. It can meet market demand and is suitable for promotion. When using this invention, firstly, two connecting pipes 2 are installed in the water supply pipeline. Then, a horizontal pipe 1 is installed between the two connecting pipes 2 via a movable joint, with the left end of the horizontal pipe 1 facing the high-pressure water source. The horizontal pipe 1 is easy to clean and replace. The high-pressure water source enters the horizontal pipe 1 through the left connecting pipe 2 and flows out through the right connecting pipe 2. When the water flows through the filter plate 7, the filter plate 7 filters the water. The filtered material accumulates on the left side of the filter plate 7. The filtered material includes particulate impurities and scale clumps in the water. At this time, the water enters from the left end of the moving pipe 5 and flows out from the right end. This flow channel is the initial flow channel. When too much filtered material accumulates on the left side of the filter plate 7, the filter plate 7 is... When the filter holes are blocked, the water pressure pushes the filter plate 7 and the moving pipe 5 to the right until the moving pipe 5 no longer blocks the slag collection port 8 and the return water port 9. At this time, the horizontal pipe 1 no longer blocks the return water port 10. The backup flow channel is then opened, and the water and filtered material at the left end of the horizontal pipe 1 enter the left cavity through the slag collection port 8. The filtered material is filtered again by the annular filter plate 6 and trapped in the left cavity. The water enters the right cavity and flows back into the moving pipe 5 through the return water port 9 and the return water port 10. As the filtered material on the left side of the filter plate 7 decreases, the moving pipe 5 returns to the initial flow channel under the action of the reset elastic element 11, thereby realizing the automatic cleaning of the initial flow channel and reducing blockage.

[0018] Specifically, such as Figure 1 and Figure 3 As shown, the reset elastic element 11 in this embodiment is a spring telescopic rod. The spring telescopic rod is waterproof and can be used in water. A stop rod 20 is fixedly installed on the moving pipe 5. The stop rod 20 can slide left and right in the return water inlet 9. The stop rod 20 is fixedly connected to one end of the spring telescopic rod, and the other end of the spring telescopic rod is fixedly connected to the horizontal pipe 1. The spring telescopic rod is located in the right cavity to reduce the corrosion of the spring telescopic rod by scale and prevent the spring telescopic rod from being immersed in the circulating water for a long time. When the moving pipe 5 moves to the right relative to the horizontal pipe 1, the moving pipe 5 drives one end of the spring telescopic rod to move through the stop rod 20. The spring telescopic rod is compressed and stores energy, and the stop rod 20 slides to the right in the return water inlet 9. When the force to the right on the moving pipe 5 disappears, the moving pipe 5 moves to the left to reset under the action of the spring telescopic rod.

[0019] Specifically, such as Figure 1 and Figure 3As shown, in this embodiment, an internally threaded tube 30 is slidably provided in the right cavity. The internally threaded tube 30 is arranged parallel to the horizontal tube 1. A strip-shaped groove is opened on the inner wall of the outer tube 3. A slider is slidably provided in the strip-shaped groove. The slider is fixedly connected to the internally threaded tube 30. When the internally threaded tube 30 moves left and right, it drives the slider to slide left and right along the strip-shaped groove, preventing the internally threaded tube 30 from rotating with the screw 31. The internally threaded tube 30 is fitted with the screw 31. One end of the screw 31 extends out of the outer tube 3 through a reserved hole on the outer tube 3. The screw 31 and the outer tube 3 are connected by a rotational seal. The rotational seal is a mechanical seal-end face seal. The end face seal can maintain a good rotational seal effect under high pressure. The other end of the screw 31 is rotatably connected to the outer tube 3 through a shaft seat, which increases the stability of the screw 31. A handwheel is fixedly installed at the end of the screw 31 that extends out of the outer tube 3. Turning the screw 31 by the handwheel is more labor-saving. Two levers 32 are fixedly installed on the internally threaded tube 30. The stop bar 20 is located between the two levers 32. In the initial state, when the moving tube 5 moves left and right, it causes the stop rod 20 to move between the two levers 32, and the levers 32 do not obstruct the movement of the stop rod 20. Tightening the screw 31 causes the internal threaded tube 30 to move left and right along the screw 31, which in turn causes the levers 32 to move left and right. When manual slag removal is required, tightening the screw 31 causes the internal threaded tube 30 to move the levers 32 to the right until the left lever 32 contacts and engages with the stop rod 20, thereby causing the stop rod 20 and the moving tube 5 to move to the right. The force of tightening the screw 31 increases. Continue turning screw 31, the moving tube 5 moves to the right, the spring telescopic rod is compressed and stored energy until the slag collection port 8, the return water port 9 and the return water hole 10 open, realizing manual slag discharge and maintaining this state; turn screw 31 in the opposite direction again, the above process is reversed, and the initial state is restored; continue turning screw 31 in the opposite direction, so that the right-side lever 32 and the stop lever 20 abut against each other, thereby restricting the moving tube 5 from moving to the right, keeping the slag collection port 8, the return water port 9 and the return water hole 10 in the closed state, at which time it is convenient to discharge and clean the left cavity.

[0020] Further, such as Figure 1 and Figure 2As shown, the movable joint in this embodiment includes a sleeve 40, which is slidably fitted onto the connecting pipe 2. The sleeve 40 and the connecting pipe 2 are coaxially arranged, and the inner circumference of the sleeve 40 and the outer circumference of the connecting pipe 2 are in airtight sliding contact. The end of the horizontal pipe 1 is inserted into the sleeve 40, and the outer circumference of the horizontal pipe 1 is in sliding contact with the inner circumference of the sleeve 40. A sealing gasket 41 is fixedly provided at the end of the connecting pipe 2, and the sealing gasket 41 is clamped between the connecting pipe 2 and the horizontal pipe 1. A through hole 42 is opened on the sleeve 40, and the axis of the through hole 42 is distributed radially along the sleeve 40. A retaining bead 43 is movably provided in the through hole 42. The retaining bead can only move radially along the sleeve 40 within the through hole 42. Both ends of the through hole 42 are respectively provided with anti-restriction devices. The retaining ring that prevents the retaining bead 43 from falling out has a corresponding groove 44 on the horizontal tube 1. A sliding ring 45 is fitted on the outer circumference of the sleeve 40 to prevent the retaining bead 43 from moving out of the groove 44. The inner circumference of the sliding ring 45 slides and contacts the outer circumference of the sleeve 40. The sliding ring 45 and the sleeve 40 are coaxially arranged and connected by a return spring 46. The return spring 46 is fitted on the outer circumference of the sleeve 40. One end of the return spring 46 is fixedly connected to the sliding ring 45 and the other end is fixedly connected to the sleeve 40. When the retaining bead 43 is in the groove 44, one side of the retaining bead 43 is in contact with the groove 44 and the other side is in close contact with the inner wall of the sliding ring 45, which increases the stability of the connection between the sleeve 40 and the horizontal tube 1. When the horizontal tube 1 is separated from the connecting tube 2, the slip ring 45 is first pushed towards the end of the connecting tube 2 with the external thread. The return spring 46 is compressed and stored, causing the slip ring 45 to move away from the outside of the through hole 42 so that the retaining bead 43 can move out of the retaining groove 44. The slip ring 45 drives the sleeve 40 to move along the connecting tube 2, and the sleeve 40 gradually moves away from the end of the horizontal tube 1. At this time, the horizontal tube 1 can be moved away from the two connecting tubes 2. Conversely, if the above process is reversed, the horizontal tube 1 can be quickly installed between the two connecting tubes 2. When the retaining bead 43 is in the retaining groove 44, the sleeve 40 cannot continue to slide away from the external thread of the connecting tube 2.

[0021] Furthermore, such as Figure 1 and Figure 2 As shown, in this embodiment, the inner wall of the sleeve 40 has a transverse sliding groove 50, and a sliding rod 51 is slidably disposed in the transverse sliding groove 50. The sliding rod 51 is fixed to the connecting pipe 2. With the cooperation of the transverse sliding groove 50 and the sliding rod 51, the sleeve 40 can only slide left and right relative to the connecting pipe 2; and when the retaining bead 43 is located in the retaining groove 44, the sliding rod 51 is exactly located at the end of the transverse sliding groove 50, so that the sealing gasket 41 is kept clamped between the connecting pipe 2 and the horizontal pipe 1, and the sealing gasket 41 undergoes elastic deformation, forming a good seal between the connecting pipe 2, the horizontal pipe 1 and the sleeve 40.

[0022] Furthermore, such as Figure 1As shown, in this embodiment, a slag discharge port 60 connected to the left cavity is provided on the outer tube 3, and a sealing cap 61 is installed in the internal thread of the slag discharge port 60. The opening and closing of the slag discharge port 60 is controlled by the sealing cap 61. When the slag discharge port 60 is open, the scale collected in the left cavity can be discharged from the outer tube 3.

[0023] Furthermore, such as Figure 1 and Figure 2 As shown, in this embodiment, the slot 44 is an annular groove coaxial with the horizontal tube 1, and the cross-section of the annular groove is a curved surface that can fit with the retaining bead 43. The annular groove facilitates the rotation of the horizontal tube 1 relative to the sleeve 40, and facilitates the retaining bead 43 to be inserted into the slot 44.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe connection device for an evaporator of a tube ice machine, comprising a horizontal pipe (1), with connecting pipes (2) at both ends of the horizontal pipe (1), one end of the connecting pipe (2) being connected to the horizontal pipe (1) via a movable joint, and the other end being provided with an external thread, characterized in that: An outer tube (3) is fixedly fitted around the outer periphery of the horizontal tube (1). A jacketed cavity (4) isolated from the outside is formed between the horizontal tube (1) and the outer tube (3). A movable tube (5) is airtightly and slidably installed inside the horizontal tube (1). An annular filter plate (6) is fixedly installed inside the jacketed cavity (4). The annular filter plate (6) divides the jacketed cavity (4) into a left cavity and a right cavity. A filter plate (7) is fixedly installed at one end of the movable tube (5). A slag collection port (8) connected to the left cavity and a return water port (9) connected to the right cavity are opened on the horizontal tube (1). A return water hole (10) connected to the return water port (9) is opened on the movable tube (5). The movable tube (5) and the horizontal tube (1) are connected by a reset elastic element (11). The reset elastic element (11) is a spring telescopic rod. A stop rod (20) is fixedly installed on the moving tube (5). The stop rod (20) can slide left and right in the return water port (9). The stop rod (20) is fixedly connected to one end of the spring telescopic rod, and the other end of the spring telescopic rod is fixedly connected to the horizontal tube (1). The right cavity is provided with an internal threaded tube (30). The internal threaded tube (30) is fitted with a screw (31). One end of the screw (31) extends out of the outer tube (3) through the reserved hole on the outer tube (3). The screw (31) and the outer tube (3) are connected by a rotational seal. Two levers (32) are fixedly installed on the internal threaded tube (30). The stop rod (20) is located between the two levers (32).

2. A pipe connection device for an evaporator of a tube ice machine according to claim 1, characterized in that: The movable joint includes a sleeve (40), which is slidably fitted onto the connecting pipe (2). The end of the horizontal pipe (1) is inserted into the sleeve (40). The end of the connecting pipe (2) is fixedly provided with a sealing gasket (41), which is clamped between the connecting pipe (2) and the horizontal pipe (1). A through hole (42) is opened on the sleeve (40), and a retaining bead (43) is movably provided in the through hole (42). The retaining bead can only move radially along the sleeve (40) in the through hole (42). A groove (44) is opened on the horizontal pipe (1) corresponding to the retaining bead (43). A slip ring (45) is slidably fitted on the outer periphery of the sleeve (40) to prevent the retaining bead (43) from moving out of the groove (44). The slip ring (45) is connected to the sleeve (40) by a return spring (46).

3. A pipe connection device for an evaporator of a tube ice machine according to claim 2, characterized in that: The inner wall of the sleeve (40) is provided with a transverse sliding groove (50), and a sliding rod (51) is slidably provided in the transverse sliding groove (50). The sliding rod (51) is fixed on the connecting pipe (2).

4. A pipe connection device for an evaporator of a tube ice machine according to claim 1, characterized in that: The outer tube (3) has a slag discharge port (60) connected to the left cavity, and the slag discharge port (60) is threaded with a sealing cap (61).

5. A pipe connection device for an evaporator of a tube ice machine according to claim 2, characterized in that: The slot (44) is an annular groove coaxial with the horizontal tube (1), and the cross-section of the annular groove is a curved surface that can fit with the card bead (43).

Images