A circulating heating pipe device and heating method for a cleaning machine

Abstract

A circulating heating tube device and a heating method for a cleaning machine belong to the technical field of heating tubes. It provides a circulating heating tube device and a heating method for a cleaning machine that can effectively dissipate heat and has a fast heating speed. The outer tube is sleeved on the inner tube and a gap is provided between the two. The negative electrode wire and the two electric heating wires are arranged in the gap along the axial direction of the outer tube. The gap is filled with a heat-conducting insulating medium. The left side of the annular circuit board is fixedly installed in the middle of the right side of the left annular cover plate. The left end of the negative electrode wire is electrically connected to the two electric heating wires through the annular circuit board. Three connecting holes corresponding to the negative electrode wire and the two electric heating wires are provided on the right annular cover plate. One end of the three connecting tubes is sealed and fixedly connected to the three connecting holes one by one. The negative electrode wire and the two positive electrode wires are arranged in the three connecting tubes one by one. The left ends of the two positive electrode wires are electrically connected to the right ends of the two electric heating wires one by one. The present invention has uniform heat transfer and fast heating speed.

Description

Technical Field

[0001] The invention belongs to the technical field of heating tubes, and in particular relates to a circulation heating tube device of a cleaning machine and a heating method. Background Art

[0002] The heating tube device of the hot water high pressure cleaning machine is an important part of it. The structure of the existing heating tube device is to put the electric heating wire in a metal tube, and the gap is tightly filled with crystalline magnesium oxide with good thermal conductivity and insulation. The two ends of the electric heating wire are connected to the power supply through two lead rods. It has the advantages of simple structure, long life, high thermal efficiency, good mechanical strength, can be bent into various shapes and safe for use, but there is a problem of slow heating speed. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a circulating heating tube device and a heating method for a cleaning machine which can effectively dissipate heat and has a fast heating speed.

[0004] The technical solution adopted by the present invention is: a circulating heating tube device of a cleaning machine, comprising a left annular cover plate, an annular circuit board, an outer tube, an inner tube, a right annular cover plate, a negative electrode wire, a heat-conducting insulating medium, two positive electrode wires, two electric heating wires and three connecting tubes; the outer tube is sleeved on the inner tube and a gap is provided between the two, the negative electrode wire and the two electric heating wires are arranged in the gap along the axial direction of the outer tube, the gap is filled with a heat-conducting insulating medium, the left side of the annular circuit board is fixedly installed in the middle of the right side of the left annular cover plate, the left end of the negative electrode wire is connected to the two positive electrode wires through the annular circuit board The outer end of the right side surface of the left annular cover plate is sealed and fixedly connected to the outer tube, the inner end of the right side surface of the left annular cover plate is sealed and fixedly connected to the inner tube, the right end of the outer tube and the right end of the inner tube are both sealed and fixedly connected to the left side of the right annular cover plate, and three connecting holes corresponding to the negative electrode wire and the two electric heating wires are provided on the right annular cover plate, one end of the three connecting tubes is sealed and fixedly connected to the three connecting holes in a one-to-one correspondence, the negative electrode wire and the two positive electrode wires are arranged in the three connecting tubes in a one-to-one correspondence, and the left ends of the two positive electrode wires are electrically connected to the right ends of the two electric heating wires in a one-to-one correspondence.

[0005] A heating method for a circulating heating tube device of a cleaning machine comprises the following steps:

[0006] Step 1: Place the left annular cover plate and the lower ends of the three connecting pipes into the water tank or the water cavity of the cleaning machine;

[0007] Step 2: The extension pipe piece 1 is fixedly connected to the three connecting pipes through a fixing sleeve, and the positive electrode lead-out rod and the negative electrode lead-out rod are electrically connected to the two protruding lead-out rods 1 of the extension pipe piece 1;

[0008] Step 3: Insert the two protruding lead rods 1 of the extension pipe piece 1 into the two concave connecting rods 2 of the extension pipe piece 2;

[0009] Step 4: Connect the two protruding lead rods of the extension pipe 2 to the positive and negative poles of the power supply.

[0010] The beneficial effects of the present invention are:

[0011] The two electric heating wires of the present invention can make the heat transfer between the outer tube and the inner tube uniform. The outer tube and the inner tube can heat water at the same time and the contact area with water is increased, which is beneficial to heat dissipation. The inner tube and the outer tube can facilitate the flow of water and the heating speed is fast. The present invention can adjust the water immersion depth and is suitable for various models of cleaning machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : Schematic diagram of the structure of the present invention;

[0013] Figure 2 : Front view of the present invention;

[0014] Figure 3 : Left side view of the outer tube and inner tube of the present invention;

[0015] Figure 4 : Schematic diagram of the structure of the fixed sleeve of the present invention;

[0016] Figure 5 : Figure 4 Schematic diagram of the structure viewed from above;

[0017] Figure 6 : A front view of the extension pipe of the present invention;

[0018] Figure 7 : The second front view of the extension pipe of the present invention;

[0019] Figure 8 : A schematic diagram of the structure of the second extension pipe of the present invention;

[0020] Among them: 1-left annular cover; 2-annular circuit board; 3-outer tube; 4-inner tube; 5-right annular cover; 6-connecting tube; 7-fixing sleeve; 7-1-threaded hole; 8-extension pipe fitting 1; 8-1-round tube 1; 8-2-concave wiring rod 1; 8-3-bearing 1; 8-4-extension wire 1; 8-5-connecting plate 1; 8-6-protruding lead rod 1; 9-extension pipe fitting 2; 9-1-round tube 2; 9 -2-two concave connecting rods; 9-3-two bearings; 9-4-two extension wires; 9-5-two connecting plates; 9-6-two raised lead rods; 10-negative lead wire; 11-positive lead wire; 12-electric heating wire; 13-thermal conductive insulating medium; 14-fixing plate; 15-positive lead rod; 16-negative lead rod; 17-water tank; 17-1-water inlet; 17-2-water outlet; 18-water level sensor. DETAILED DESCRIPTION

[0021] like Figure 1 to Figure 8 As shown, a circulating heating tube device of a cleaning machine comprises a left annular cover plate 1, an annular circuit board 2, an outer tube 3, an inner tube 4, a right annular cover plate 5, a negative electrode wire 10, a heat-conducting insulating medium 13, two positive electrode wires 11, two electric heating wires 12 and three connecting tubes 6; the outer tube 3 is sleeved on the inner tube 4 and a gap is provided between the two, the negative electrode wire 10 and the two electric heating wires 12 are both arranged in the gap along the axial direction of the outer tube 3, the two electric heating wires 12 are symmetrically arranged with the axis of the inner tube 4 as the center line, the gap is filled with a heat-conducting insulating medium 13, and the two electric heating wires 12 transfer heat to the outer tube 3 and the inner tube 4 through the heat-conducting insulating medium 13, the left side surface of the annular circuit board 2 is fixedly installed in the middle of the right side surface of the left annular cover plate 1, the middle of the right side surface of the left annular cover plate 1 is provided with an annular groove, the annular circuit board 2 is arranged in the groove, and the right side surface of the annular circuit board 2 is connected to the left annular cover plate 1. The right side of the annular cover plate 1 is flush with each other, the left end of the negative electrode wire 10 is electrically connected to the two electric heating wires 12 through the annular circuit board 2, the outer end of the right side of the left annular cover plate 1 is sealed and fixedly connected to the outer tube 3, the inner end of the right side of the left annular cover plate 1 is sealed and fixedly connected to the inner tube 4, the right end of the outer tube 3 and the right end of the inner tube 4 are both sealed and fixedly connected to the left side of the right annular cover plate 5, the right annular cover plate 5 and the left annular cover plate 1 are used to seal the gap between the outer tube 3 and the inner tube 4 to avoid problems such as short circuit caused by water ingress, the right annular cover plate 5 is provided with three connecting holes corresponding to the negative electrode wire 10 and the two electric heating wires 12, one end of the three connecting tubes 6 is sealed and fixedly connected to the three connecting holes in a one-to-one correspondence, the negative electrode wire 10 and the two positive electrode wires 11 are arranged in the three connecting tubes 6 in a one-to-one correspondence, and the left ends of the two positive electrode wires 11 are electrically connected to the right ends of the two electric heating wires 12 in a one-to-one correspondence. The three connecting tubes 6 play a role in protecting and regulating the negative electrode wire 10 and the two positive electrode wires 11. The negative electrode wire 10 and the two positive electrode wires 11 can be connected to an external power source for electric heating wire heating.

[0022] like Figure 2 As shown, the circulating heating tube device of the cleaning machine also includes a positive lead-out rod 15 and a negative lead-out rod 16. The right end of the negative lead 10 is electrically connected to the negative lead-out rod 16, and the right ends of the two positive lead 11 are electrically connected to the positive lead-out rod 15. The negative lead 10 can be connected to an external power source through the negative lead-out rod 16, and the two positive lead 11 can be connected to an external power source through the positive lead-out rod 15.

[0023] like Figure 4 , Figure 5As shown, the circulating heating tube device of the cleaning machine also includes a fixing sleeve 7 and a fixing plate 14; the lower end of the fixing sleeve 7 is sealed and connected with the other ends of the three connecting tubes 6, the positive lead-out rod 15 and the negative lead-out rod 16 are both arranged in the fixing sleeve 7, the fixing plate 14 is fixedly connected to the inner side surface of the fixing sleeve 7, and the fixing plate 14 is provided with two mounting holes for sealing and fixing the positive lead-out rod 15 and the negative lead-out rod 16.

[0024] like Figure 6 As shown, the circulating heating pipe device of the cleaning machine also includes an extension pipe 8, which includes a round tube 8-1, a bearing 8-3, a connecting plate 8-5, two concave connecting rods 8-2, two extension wires 8-4 and two protruding lead rods 8-6; the lower end of the outer circumference of the round tube 8-1 is provided with an external thread, the upper surface of the fixing sleeve 7 is provided with a threaded hole 7-1, the round tube 8-1 is threadedly connected with the threaded hole 7-1 of the fixing sleeve 7, the bearing 8-3 is coaxially fixed in the round tube 8-1, and the two concave connecting rods 8-2 are both connected to the inner circumference of the bearing 8-3 The circumference is fixedly connected, and the two concave connecting rods 8-2 are arranged parallel to the axis of the round tube 8-1. The two concave connecting rods 8-2 are matched with the positive lead-out rod 15 and the negative lead-out rod 16 respectively. The bearing 8-3 can make the round tube 8-1 and the fixed sleeve 7 threadedly fixedly connected without affecting the positive lead-out rod 15 and the negative lead-out rod 16 to be inserted into the concave connecting rod 8-2. The two protruding lead-out rods 8-6 are fixedly connected to the inner side of the round tube 8-1 through the connecting plate 8-5. The two protruding lead-out rods 8-6 are electrically connected to the two concave connecting rods 8-2 one by one through the extension wire 8-4. At this time, the two protruding lead-out rods 8-6 are electrically connected to the negative wire 10 and the two positive wires 11, and the two protruding lead-out rods 8-6 can be connected to an external power supply for electric heating wire heating.

[0025] like Figure 7As shown, the circulation heating tube device of the cleaning machine also includes an extension pipe fitting 29, which includes a round tube 29-1, a bearing 29-3, a connecting plate 29-5, two concave connecting rods 29-2, two extension wires 29-4 and two protruding lead-out rods 29-6; the round tube 29-1 is a shoulder tube, the lower end of the round tube 29-1 is a small diameter end, the lower end of the outer circumferential surface of the small diameter end of the round tube 29-1 is provided with an external thread, the upper end of the inner circumferential surface of the round tube 18-1 is provided with an internal thread, the upper end of the round tube 18-1 is threadedly connected with the lower end of the round tube 29-1, the bearing 29-3 is coaxially fixed in the round tube 29-1, and the two concave connecting rods 29-2 are provided with a threaded connection. The rods 2 9-2 are fixedly connected to the inner circumference of the bearing 2 9-3, and the two concave connecting rods 2 9-2 are arranged parallel to the axis of the round tube 2 9-1. The two concave connecting rods 2 9-2 are respectively plugged with the two protruding lead-out rods 1 8-6 in a one-to-one correspondence. The bearing 2 9-3 can make the round tube 1 8-1 and the round tube 2 9-1 threadedly fixedly connected without affecting the insertion of the protruding lead-out rod 1 8-6 into the concave connecting rod 2 9-2. The two protruding lead-out rods 2 9-6 are fixedly connected to the upper end of the inner side surface of the round tube 2 9-1 through the connecting plate 2 9-5. The two protruding lead-out rods 2 9-6 are electrically connected to the two concave connecting rods 2 9-2 in a one-to-one correspondence through the extension wire 2 9-4. At this time, the two protruding lead-out rods 2 9-6 are electrically connected to the negative lead wire 10 and the two positive lead wires 11, and the two protruding lead-out rods 2 9-6 are electrically connected to the positive and negative poles of the power supply for electric heating wire heating.

[0026] like Figure 2 As shown, the circulating heating pipe device of the cleaning machine also includes a water tank 17, and the lower ends of the outer tube 3, the inner tube 4, the three connecting tubes 6, the fixing sleeve 7 and the extension pipe 8 are all arranged in the water tank 17. The lower end of the water tank 17 is provided with a water inlet 17-1, and the upper end of the water tank 17 is provided with a water outlet 17-2. The water tank 17 is arranged in the cleaning machine. The upper layer of water in the water tank 17 has a high temperature, and the water outlet 17-2 is arranged above the water inlet 17-1 to ensure the water temperature sprayed by the cleaning machine.

[0027] like Figure 2 As shown, the circulating heating tube device of the cleaning machine also includes a water level controller 18, and the probe of the water level controller 18 is installed in the water tank 17 and arranged between the upper surface and the bottom surface of the outer tube 3. The water level controller 18 is electrically connected to the external power switch. When the water level in the water tank 17 is too low, the water level controller 18 is used to turn off the external power supply to avoid wasting resources.

[0028] A heating method for a circulating heating tube device of a cleaning machine comprises the following steps:

[0029] Step 1: Place the left annular cover plate 1 and the lower ends of the three connecting pipes 6 into the water tank 11 or the water cavity of the cleaning machine;

[0030] Step 2: The extension pipe 8 is fixedly connected to the three connecting pipes 6 through the fixing sleeve 7, and the positive electrode lead-out rod 15 and the negative electrode lead-out rod 16 are electrically connected to the two protruding lead-out rods 8-6 of the extension pipe 8;

[0031] Step 3: Insert the two protruding lead rods 8-6 of the extension pipe 8 into the two concave connecting rods 9-2 of the extension pipe 9;

[0032] Step 4: Connect the two protruding lead rods 9-6 of the extension pipe 9 to the positive and negative poles of the power supply.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circulating heating tube device for a cleaning machine, characterized in that: The invention comprises a left annular cover plate (1), an annular circuit board (2), an outer tube (3), an inner tube (4), a right annular cover plate (5), a negative electrode wire (10), a heat-conducting insulating medium (13), two positive electrode wires (11), two electric heating wires (12) and three connecting tubes (6); the outer tube (3) is sleeved on the inner tube (4) and a gap is provided between the two; the negative electrode wire (10) and the two electric heating wires (12) are both arranged in the gap along the axial direction of the outer tube (3); the gap is filled with the heat-conducting insulating medium (13); the left side of the annular circuit board (2) is fixedly mounted on the middle part of the right side of the left annular cover plate (1); the left end of the negative electrode wire (10) is connected to the two electric heating wires (12) through the annular circuit board (2) ), the outer end of the right side of the left annular cover plate (1) is sealed and fixedly connected to the outer tube (3), the inner end of the right side of the left annular cover plate (1) is sealed and fixedly connected to the inner tube (4), the right end of the outer tube (3) and the right end of the inner tube (4) are both sealed and fixedly connected to the left side of the right annular cover plate (5), the right annular cover plate (5) is provided with three connecting holes corresponding to the negative electrode wire (10) and the two electric heating wires (12), one end of the three connecting tubes (6) is sealed and fixedly connected to the three connecting holes in a one-to-one correspondence, the negative electrode wire (10) and the two positive electrode wires (11) are arranged in the three connecting tubes (6) in a one-to-one correspondence, the left ends of the two positive electrode wires (11) are electrically connected in a one-to-one correspondence to the right ends of the two electric heating wires (12), The circulating heating tube device of the cleaning machine also includes a positive electrode lead-out rod (15) and a negative electrode lead-out rod (16), the right end of the negative electrode lead (10) is electrically connected to the negative electrode lead-out rod (16), and the right ends of the two positive electrode lead (11) are both electrically connected to the positive electrode lead-out rod (15). The circulating heating pipe device of the cleaning machine also includes a fixing sleeve (7) and a fixing plate (14); the lower end of the fixing sleeve (7) is sealed and connected to the other ends of the three connecting pipes (6); the positive electrode lead-out rod (15) and the negative electrode lead-out rod (16) are both arranged in the fixing sleeve (7); the fixing plate (14) is fixedly connected to the inner side of the fixing sleeve (7); the fixing plate (14) is provided with two mounting holes for sealing and fixing the positive electrode lead-out rod (15) and the negative electrode lead-out rod (16); The circulating heating pipe device of the cleaning machine also includes an extension pipe fitting (8), which includes a round pipe (8-1), a bearing (8-3), a connecting plate (8-5), two concave connecting rods (8-2), two extension wires (8-4) and two protruding lead rods (8-6); the lower end of the outer circumferential surface of the round pipe (8-1) is provided with an external thread, the upper surface of the fixing sleeve (7) is provided with a threaded hole (7-1), the round pipe (8-1) is threadedly connected to the threaded hole (7-1) of the fixing sleeve (7), and the bearing (8-3) is coaxially fixedly arranged on the round pipe. (8-1), the two concave connecting rods (8-2) are fixedly connected to the inner circumferential surface of the bearing (8-3), the two concave connecting rods (8-2) are arranged parallel to the axis of the round tube (8-1), the two concave connecting rods (8-2) are respectively matched with the positive lead-out rod (15) and the negative lead-out rod (16), the two protruding lead-out rods (8-6) are fixedly connected to the inner side surface of the round tube (8-1) through the connecting plate (8-5), and the two protruding lead-out rods (8-6) are electrically connected to the two concave connecting rods (8-2) one by one through the extension wire (8-4), The circulation heating pipe device of the cleaning machine also includes an extension pipe piece 2 (9), which includes a round tube 2 (9-1), a bearing 2 (9-3), a connecting plate 2 (9-5), two concave connecting rods 2 (9-2), two extension wires 2 (9-4) and two protruding lead rods 2 (9-6); the round tube 2 (9-1) is a shoulder tube, the lower end of the round tube 2 (9-1) is a small diameter end, the lower end of the outer circumference of the small diameter end of the round tube 2 (9-1) is provided with an external thread, the upper end of the inner circumference of the round tube 1 (8-1) is provided with an internal thread, the upper end of the round tube 1 (8-1) is threadedly connected to the lower end of the round tube 2 (9-1), the bearing 2 (9-3) are coaxially fixedly arranged in the round tube (9-1), the two concave connecting rods (9-2) are fixedly connected to the inner circumferential surface of the bearing (9-3), the two concave connecting rods (9-2) are arranged parallel to the axis of the round tube (9-1), the two concave connecting rods (9-2) are respectively plugged into the two protruding lead-out rods (8-6) in a one-to-one correspondence, the two protruding lead-out rods (9-6) are fixedly connected to the upper end of the inner side surface of the round tube (9-1) through the connecting plate (9-5), and the two protruding lead-out rods (9-6) are electrically connected to the two concave connecting rods (9-2) in a one-to-one correspondence through the extension wire (9-4), The circulating heating pipe device of the cleaning machine also includes a water tank (17), the lower ends of the outer tube (3), the inner tube (4), the three connecting tubes (6), the fixing sleeve (7) and the extension pipe piece (8) are all arranged in the water tank (17), the lower end of the water tank (17) is provided with a water inlet (17-1), the upper end of the water tank (17) is provided with a water outlet (17-2), and the water tank (17) is arranged in the cleaning machine.

2. A circulating heating tube device for a cleaning machine according to claim 1, characterized in that: The circulating heating tube device of the cleaning machine also includes a water level controller (18), and a probe of the water level controller (18) is installed in the water tank (17) and arranged between the upper surface and the bottom surface of the outer tube (3).

3. A heating method for a circulating heating tube device of a cleaning machine, characterized in that: The following steps are involved: Step 1: Place the left annular cover plate (1) and the lower ends of the three connecting pipes (6) into a water tank (11) or a water chamber of a cleaning machine; Step 2: The extension tube piece 1 (8) is fixedly connected to the three connection tubes (6) through the fixing sleeve (7), and the positive electrode lead-out rod (15) and the negative electrode lead-out rod (16) are electrically connected to the two protruding lead-out rods 1 (8-6) of the extension tube piece 1 (8); Step 3: Insert the two protruding lead rods 1 (8-6) of the extension pipe piece 1 (8) into the two concave connecting rods 2 (9-2) of the extension pipe piece 2 (9); Step 4: Connect the two protruding lead rods 2 (9-6) of the extension pipe 2 (9) to the positive and negative electrodes of the power supply.

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