Split type heat pump unit for regional energy conveying

Abstract

The invention relates to a regional energy conveying split type heat pump unit which comprises a supporting seat, a protective cover is fixedly installed at the top of the supporting seat, a support is arranged in the protective cover, a compressor is fixedly installed at the top of the support, an evaporator and a heat supply mechanism are arranged on the two sides of the support respectively, and the input end of the compressor communicates with the output end of the evaporator; the extending end of the first air cylinder is in the longest state, the first piston blocks the output end of the connecting pipe, a cleaning agent is injected into the heat exchange box, the cleaning agent and clear water in the heat exchange box are mixed into cleaning liquid, the first heat exchange pipe and the second heat exchange pipe are soaked, and a small amount of scale on the surface of the second heat exchange pipe can be conveniently removed; and then the extending end of the second air cylinder is controlled to contract to the half length, a through hole is blocked through a first sealing plug, then a cleaning agent and clear water are injected into the heat exchange box, cleaning liquid with the higher concentration is obtained, the first heat exchange pipe is soaked, and thick scale on the surface of the first heat exchange pipe is soaked twice, so that the thick scale is conveniently and efficiently removed.

Description

Technical Field

[0001] The invention relates to the technical field of heat pump units, in particular to a regional energy transmission split-type heat pump unit. Background Art

[0002] The district energy heat pump unit is an important component of the district energy system. It uses heat pump technology to extract low-grade heat energy from the natural environment, realizes energy conversion through compressors and refrigerants, and provides heating, cooling and hot water services for regional buildings. Its working principle is based on the thermodynamic cycle principle in thermodynamics. Its circulating working substance (such as refrigerant) absorbs heat at the low-temperature heat source and releases heat at the high-temperature heat source through the process of compression and expansion, thus realizing heat transfer.

[0003] When the existing heat pump unit is in use, it is necessary to regularly clean the heat exchange tubes in the heat exchange box with cleaning fluid. The heat exchange tubes located at the top of the inner cavity of the heat exchange box are at a high temperature, and thick scale is easily attached to their outer walls. Generally, the concentration of the cleaning fluid injected into the heat exchange box is low, and the scale on the surface of the heat exchange tubes at the top of the inner cavity of the heat exchange box cannot be effectively removed, affecting the heat exchange efficiency of the heat exchange box. At the same time, when the external environment is relatively humid, frost is likely to form on the surface of the evaporator during the process of passing through the evaporator, which is likely to affect the normal working efficiency of the evaporator. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that the concentration of the cleaning liquid injected into the heat exchanger is low, and the scale on the surface of the heat exchange tube at the top of the heat exchanger cavity cannot be efficiently removed, thus affecting the heat exchange efficiency of the heat exchanger;

[0006] (2) How to solve the problem that when the external environment is relatively humid, frost is likely to form on the surface of the evaporator during the process of passing through the evaporator, which is likely to affect the normal working efficiency of the evaporator.

[0007] The object of the present invention can be achieved by the following technical scheme: A regional energy transmission split-type heat pump unit, comprising a support base, a protective cover is fixedly installed on the top of the support base, a bracket is arranged inside the protective cover, a compressor is fixedly installed on the top of the bracket, and an evaporator and a heating mechanism are respectively arranged on both sides of the bracket, and the input end of the compressor is connected to the output end of the evaporator;

[0008] The heating mechanism includes a heat exchange box fixedly connected to a support seat, a liquid inlet pipe is fixedly inserted into the top of the heat exchange box, the input end of the liquid inlet pipe is connected to the output end of the compressor, a partition is fixedly installed inside the heat exchange box, a through hole is opened in the middle of the partition, and an anti-backflow unit is arranged below the partition, and a sewage discharge unit is arranged on the side of the heat exchange box.

[0009] A further technical improvement of the present invention is that a first heat exchange tube is fixedly inserted on the partition on one side of the through hole, the input end of the first heat exchange tube is connected with the output end of the liquid inlet tube, and the output end of the first heat exchange tube is connected with the second heat exchange tube, and the output end of the second heat exchange tube passes through the heat exchange box.

[0010] A further technical improvement of the present invention is that a transmission rod is provided on the side of the heat exchange box for rotation toward the bracket, a hot water pipe is connected to the side of the heat exchange box away from the bracket, and a feed pipe is connected to the top of the heat exchange box, the top of the feed pipe passes through the protective cover, and a control valve is fixedly installed in the middle of the feed pipe.

[0011] A further technical improvement of the present invention is that: the sewage discharge unit includes a cold water pipe connected to the bottom of the heat exchanger box, the middle part of the cold water pipe is respectively connected to an L-shaped pipe and a connecting pipe, the L-shaped pipe is located above the connecting pipe, and a one-way valve is fixedly installed at the end of the cold water pipe away from the heat exchanger box, and the opening direction of the one-way valve is the same as the direction in which external cold water enters the heat exchanger box; a filter is fixedly installed on the inner wall of the middle part of the cold water pipe, the position of the filter corresponds to the position of the output end of the L-shaped pipe, and the filter is arranged close to the heat exchanger box.

[0012] A further technical improvement of the present invention is that the output end of the connecting pipe is connected to a laterally arranged sewage pipe, a first cylinder is fixedly installed on the bottom of the support seat, the extended end of the first cylinder passes through the sewage pipe, and a first piston for blocking the output end of the connecting pipe is fixedly installed on the extended end of the first cylinder.

[0013] A further technical improvement of the present invention is that a first sealing plug is provided on the top of the partition, the position of the first sealing plug corresponds to the position of the through hole, and the first fixing rod and the second fixing rod are fixedly connected on both sides of the first sealing plug, one end of the first fixing rod is fixedly connected to the second piston, the second piston is slidably connected to the inner wall of the L-shaped tube, a second cylinder arranged laterally is fixedly installed in the middle part of the bracket, the extended end of the second cylinder is slidably connected to the middle part of the transmission rod through a shift rod, and one end of the second fixing rod movably passes through the heat exchange box and is fixedly connected to the extended end of the second cylinder.

[0014] A further technical improvement of the present invention is that: the anti-backflow unit includes a blocking rod movably inserted at the bottom of the side of the heat exchange box, the blocking rod is arranged horizontally, and one end of the blocking rod is fixedly installed with a second sealing plug for blocking the cold water pipe, and the other end of the blocking rod is movably connected to the bottom of the transmission rod; the extended end of the first cylinder is in the longest state, the first piston blocks the output end of the connecting pipe, the control valve is opened, and a cleaning agent is injected into the heat exchange box through the feed pipe. The cleaning agent is mixed with the clean water in the heat exchange box to form a cleaning liquid, which is used to soak the first heat exchange tube and the second heat exchange tube to facilitate the removal of a small amount of scale on the surface of the second heat exchange tube. After soaking for a period of time, the extended end of the first cylinder is controlled to shrink to the shortest, and the first piston is separated from the output end of the connecting pipe, so that the heat exchange box The sewage carrying small particles of scale passes through the filter and the connecting pipe and is discharged through the sewage pipe. In the process of the sewage passing through the filter, it is convenient to flush out the blockages accumulated on the filter, thereby extending the working time of the filter. Then the extended end of the second cylinder is controlled to shrink to half its length, and the lever contacts the transmission rod, and the through hole is blocked by the first sealing plug. At this time, the second piston is still located in the L-shaped tube, and then the cleaning agent and clean water are injected into the heat exchange box through the feed pipe to obtain a cleaning liquid with a higher concentration, and the first heat exchange tube is soaked, so that the thick scale on the surface of the first heat exchange tube is soaked twice, which is convenient for efficient removal. The end of the blocking rod away from the second sealing plug is fixedly installed with a first baffle, and a first thrust spring is elastically arranged between the first baffle and the heat exchange box.

[0015] A further technical improvement of the present invention is that a drying mechanism for cleaning frost on the surface of the evaporator is arranged above the compressor, and the drying mechanism includes an L-shaped flip frame rotatably connected to the top of the evaporator through a rotating seat, and one end of the L-shaped flip frame is fixedly connected to a U-shaped electric heating plate, and the position of the U-shaped electric heating plate corresponds to the position of the liquid inlet pipe.

[0016] A further technical improvement of the present invention is that: two guide frames are fixedly installed on the inner wall of the protective cover, and a push-pull rod is movably inserted on the inner walls of the two guide frames. One end of the push-pull rod is rotatably connected to a roller, and the roller is rollingly connected to the top of the transmission rod, and the other end of the push-pull rod is movably connected to the middle part of the L-shaped flip frame; the air intake fan is in an open state, the extended end of the second cylinder is in a longest state, the first sealing plug is staggered with the through hole, and the cold water pipe and the second sealing plug are also staggered, and the high-temperature and high-pressure gas is passed through the inlet through the compressor. The liquid pipe is injected into the first heat exchange tube. At this time, the end of the liquid inlet pipe close to the compressor is located in the U-shaped electric heating plate. The U-shaped electric heating plate is turned on to heat the liquid inlet pipe to reduce the high-temperature and high-pressure gas in the liquid inlet pipe, and the heat loss occurs in the process of entering the first heat exchange tube; when the transmission rod flips, it drives the push-pull rod to move horizontally, so that the L-shaped flip frame flips, driving the U-shaped electric heating plate to rotate to the top of the evaporator, and the air intake fan cooperates with the U-shaped electric heating plate to generate a hot air flow through the evaporator, which is convenient for cleaning the frost on the surface of the evaporator to avoid affecting the normal working efficiency of the evaporator.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the present invention is in use, the extended end of the first cylinder is in the longest state, the first piston blocks the output end of the connecting pipe, the control valve is opened, and the cleaning agent is injected into the heat exchange box through the feed pipe. The cleaning agent and the clean water in the heat exchange box are mixed into a cleaning liquid, which is used to soak the first heat exchange tube and the second heat exchange tube, so as to remove a small amount of scale on the surface of the second heat exchange tube. After soaking for a period of time, the extended end of the first cylinder is controlled to shrink to the shortest, and the first piston is separated from the output end of the connecting pipe, so that the sewage carrying small particles of scale in the heat exchange box passes through the filter screen and the connecting pipe and is discharged through the sewage pipe. In the process of the sewage passing through the filter screen, the blockage accumulated on the filter screen is washed away, and the working time of the filter screen is extended. Then the extended end of the second cylinder is controlled to shrink to half the length, the lever contacts the transmission rod, and the through hole is blocked by the first sealing plug. At this time, the second piston is still located in the L-shaped tube, and the cleaning agent and clean water are injected into the heat exchange box through the feed pipe to obtain a cleaning liquid with a higher concentration, and the first heat exchange tube is soaked, so that the thick scale on the surface of the first heat exchange tube is soaked twice, so that it is convenient to remove it efficiently.

[0019] When the present invention is in use, the air intake fan is in an on state, the extended end of the second cylinder is in a longest state, the first sealing plug and the through hole are staggered, the cold water pipe and the second sealing plug are also staggered, and the high-temperature and high-pressure gas is injected into the first heat exchange tube through the liquid inlet pipe by the compressor. At this time, the end of the liquid inlet pipe close to the compressor is located in the U-shaped electric heating plate. The U-shaped electric heating plate is turned on to heat the liquid inlet pipe, thereby reducing the heat loss of the high-temperature and high-pressure gas in the liquid inlet pipe during the process of entering the first heat exchange tube; and when the transmission rod is flipped, it drives the push-pull rod to move horizontally, so that the L-shaped flip frame flips, driving the U-shaped electric heating plate to rotate to the top of the evaporator, and the air intake fan cooperates with the U-shaped electric heating plate to generate a hot air flow through the evaporator, which is convenient for cleaning the frost on the surface of the evaporator and avoiding affecting the normal working efficiency of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the heating mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the sewage discharge unit of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the sewage discharge unit structure of the present invention;

[0026] Figure 6 The local structure of the heating mechanism of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 7 The local structure of the heating mechanism of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 8 This is a schematic diagram of the drying mechanism structure of the present invention;

[0029] Fig. 9 It is a three-dimensional schematic diagram of the local structure of the drying mechanism of the present invention.

[0030] In the figure: 1. Intake fan; 2. Protective cover; 3. Support seat; 4. Control valve; 5. Feed pipe; 6. Heating mechanism; 7. Liquid inlet pipe; 8. Drying mechanism; 9. Evaporator; 10. Compressor; 11. Bracket; 12. Air outlet; 13. Liquid return pipe; 14. Expansion valve; 601. Heat exchange box; 602. First heat exchange tube; 603. Second cylinder; 604. Transmission rod; 605. First baffle; 606. Blocking rod; 607. Second sealing plug; 608. Drain unit; 609. Second heat exchange tube; 610. Hot water Tube; 611, first sealing plug; 612, second fixed rod; 613, lever; 614, through hole; 615, partition; 616, second piston; 617, first fixed rod; 6081, filter screen; 6082, first cylinder; 6083, first piston; 6084, drain pipe; 6085, connecting pipe; 6086, cold water pipe; 6087, L-shaped pipe; 801, U-shaped electric heating plate; 802, second baffle; 803, guide frame; 804, push-pull rod; 805, L-shaped flip frame; 806, rotating seat. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 9 As shown, a regional energy transmission split-type heat pump unit includes a support base 3, a protective cover 2 is fixedly installed on the top of the support base 3, a bracket 11 is arranged inside the protective cover 2, a compressor 10 is fixedly installed on the top of the bracket 11, and an evaporator 9 and a heating mechanism 6 are respectively arranged on both sides of the bracket 11, and the input end of the compressor 10 is connected to the output end of the evaporator 9.

[0033] See also Figure 2 and Figure 3 As shown, the above-mentioned heating mechanism 6 includes a heat exchange box 601 fixedly connected to the support base 3, a liquid inlet pipe 7 is fixedly inserted on the top of the heat exchange box 601, the input end of the liquid inlet pipe 7 is connected to the output end of the compressor 10, a partition 615 is fixedly installed inside the heat exchange box 601, a through hole 614 is opened in the middle of the partition 615, and an anti-backflow unit is arranged below the partition 615, and a sewage discharge unit 608 is arranged on the side of the heat exchange box 601.

[0034] See also Figure 3As shown, a first heat exchange tube 602 is fixedly inserted on the partition 615 on one side of the above-mentioned through hole 614, the input end of the first heat exchange tube 602 is connected to the output end of the liquid inlet tube 7, and the output end of the first heat exchange tube 602 is connected to the second heat exchange tube 609, and the output end of the second heat exchange tube 609 passes through the heat exchange box 601.

[0035] See also Figure 3 As shown, the heat exchange box 601 is provided with a transmission rod 604 for rotating toward the side of the bracket 11, the side of the heat exchange box 601 away from the bracket 11 is connected to a hot water pipe 610, and the top of the heat exchange box 601 is connected to a feed pipe 5, the top end of the feed pipe 5 passes through the protective cover 2, and the middle part of the feed pipe 5 is fixedly installed with a control valve 4.

[0036] See also Figure 3-Figure 5 As shown, the above-mentioned sewage discharge unit 608 includes a cold water pipe 6086 connected to the bottom of the heat exchanger box 601, and the middle part of the cold water pipe 6086 is respectively connected to an L-shaped pipe 6087 and a connecting pipe 6085, and the L-shaped pipe 6087 is located above the connecting pipe 6085. A one-way valve is fixedly installed at the end of the cold water pipe 6086 away from the heat exchanger box 601, and the opening direction of the one-way valve is the same as the direction in which external cold water enters the heat exchanger box 601.

[0037] See also Figure 3 and Figure 4 As shown, a filter screen 6081 is fixedly installed on the middle inner wall of the above-mentioned cold water pipe 6086. The position of the filter screen 6081 corresponds to the position of the output end of the L-shaped pipe 6087, and the filter screen 6081 is arranged close to the heat exchange box 601.

[0038] See also Figure 2-Figure 4 As shown, the output end of the above-mentioned connecting pipe 6085 is connected to a laterally arranged sewage pipe 6084, and a first cylinder 6082 is fixedly installed on the bottom of the support seat 3. The protruding end of the first cylinder 6082 passes through the sewage pipe 6084, and a first piston 6083 for blocking the output end of the connecting pipe 6085 is fixedly installed on the protruding end of the first cylinder 6082.

[0039] See also Figure 2 and Figure 6 As shown, a first sealing plug 611 is provided on the top of the above-mentioned partition 615, and the position of the first sealing plug 611 corresponds to the position of the through hole 614, and the first fixing rod 617 and the second fixing rod 612 are fixedly connected on both sides of the first sealing plug 611, and one end of the first fixing rod 617 is fixedly connected to the second piston 616, and the second piston 616 is slidably connected to the inner wall of the L-shaped tube 6087.

[0040] See also Figure 2 , Figure 6 and Figure 7As shown, a transversely arranged second cylinder 603 is fixedly installed in the middle part of the above-mentioned bracket 11, and the protruding end of the second cylinder 603 is slidingly connected to the middle part of the transmission rod 604 through the shift rod 613, and one end of the second fixed rod 612 movably passes through the heat exchange box 601 and is fixedly connected to the protruding end of the second cylinder 603.

[0041] See also Figure 3 As shown, the above-mentioned backflow prevention unit includes a blocking rod 606 movably inserted at the bottom of the side of the heat exchange box 601, the blocking rod 606 is arranged horizontally, and one end of the blocking rod 606 is fixedly installed with a second sealing plug 607 for blocking the cold water pipe 6086, and the other end of the blocking rod 606 is movably connected to the bottom of the transmission rod 604; the extended end of the first cylinder 6082 is in the longest state, the first piston 6083 blocks the output end of the connecting pipe 6085, the control valve 4 is opened, and the cleaning agent is injected into the heat exchange box 601 through the feed pipe 5. The cleaning agent is mixed with the clean water in the heat exchange box 601 to form a cleaning liquid, which is used to soak the first heat exchange tube 602 and the second heat exchange tube 609 to facilitate the removal of a small amount of scale on the surface of the second heat exchange tube 609. After soaking for a period of time, the extended end of the first cylinder 6082 is controlled to shrink to the shortest, and the first piston 608 3 is separated from the output end of the connecting pipe 6085, so that the sewage carrying small particles of scale in the heat exchange box 601 passes through the filter 6081 and the connecting pipe 6085, and is discharged through the sewage pipe 6084. In the process of the sewage passing through the filter 6081, it is convenient to wash away the blockage accumulated on the filter 6081, thereby extending the working time of the filter 6081. Then, the extended end of the second cylinder 603 is controlled to shrink to half the length, and the lever 613 contacts the transmission rod 604, and the through hole 614 is blocked by the first sealing plug 611. At this time, the second piston 616 is still located in the L-shaped tube 6087. Then, the cleaning agent and clean water are injected into the heat exchange box 601 through the feed pipe 5 to obtain a cleaning liquid with a higher concentration, and the first heat exchange tube 602 is soaked, so that the thick scale on the surface of the first heat exchange tube 602 is soaked twice, so that it is convenient to remove it efficiently.

[0042] See also Figure 3 As shown, a first baffle 605 is fixedly installed on the end of the blocking rod 606 away from the second sealing plug 607 , and a first thrust spring is elastically arranged between the first baffle 605 and the heat exchange box 601 .

[0043] See also Figure 2 , Figure 8 and Fig. 9 As shown, a drying mechanism 8 for cleaning frost on the surface of the evaporator 9 is arranged above the above-mentioned compressor 10. The drying mechanism 8 includes an L-shaped flip frame 805 rotatably connected to the top of the evaporator 9 through a rotating seat 806. One end of the L-shaped flip frame 805 is fixedly connected to a U-shaped electric heating plate 801. The position of the U-shaped electric heating plate 801 corresponds to the position of the liquid inlet pipe 7.

[0044] See also Figure 8 As shown, two guide frames 803 are fixedly installed on the inner wall of the above-mentioned protective cover 2, and a push-pull rod 804 is movably inserted on the inner wall of the two guide frames 803. One end of the push-pull rod 804 is rotatably connected to a roller, and the roller is rollingly connected to the top of the transmission rod 604, and the other end of the push-pull rod 804 is movably connected to the middle part of the L-shaped flip frame 805; the air intake fan 1 is in an open state, the extended end of the second cylinder 603 is in a longest state, the first sealing plug 611 and the through hole 614 are staggered, and the cold water pipe 6086 and the second sealing plug 607 are also staggered. The high-temperature and high-pressure gas is injected into the first through the liquid inlet pipe 7 through the compressor 10. In the heat exchange tube 602, at this time, the end of the liquid inlet tube 7 close to the compressor 10 is located in the U-shaped electric heating plate 801. The U-shaped electric heating plate 801 is turned on to heat the liquid inlet tube 7, thereby reducing the high-temperature and high-pressure gas in the liquid inlet tube 7 and the heat loss in the process of entering the first heat exchange tube 602; and when the transmission rod 604 flips, it drives the push-pull rod 804 to move horizontally, so that the L-shaped flip frame 805 flips, driving the U-shaped electric heating plate 801 to rotate to the top of the evaporator 9, and the air intake fan 1 cooperates with the U-shaped electric heating plate 801 to generate a hot air flow through the evaporator 9, which is convenient for cleaning the frost on the surface of the evaporator 9 to avoid affecting the normal working efficiency of the evaporator 9.

[0045] See also Figure 8 As shown, a second baffle 802 is fixedly mounted on the push-pull rod 804 between the two guide frames 803 , a second thrust spring is arranged between the second baffle 802 and one of the guide frames 803 , and the second thrust spring is arranged close to the L-shaped flip frame 805 .

[0046] See also Figure 2 As shown, an expansion valve 14 is fixedly installed at the bottom of the above-mentioned bracket 11, the input end of the expansion valve 14 is connected to the output end of the second heat exchange tube 609, and the output end of the expansion valve 14 is connected to the return liquid pipe 13, and the output end of the return liquid pipe 13 is connected to the input end of the evaporator 9.

[0047] See also Figure 2 As shown, an air intake fan 1 is fixedly installed on the top of the protective cover 2 , and the position of the air intake fan 1 corresponds to the position of the evaporator 9 . An air outlet 12 is provided on the support base 3 below the evaporator 9 .

[0048] Working principle: When the present invention is in use, first, during the normal operation of the heat pump unit, the air intake fan 1 is in the on state, the extended end of the second cylinder 603 is in the longest state, the first sealing plug 611 and the through hole 614 are staggered, and the cold water pipe 6086 and the second sealing plug 607 are also staggered. The high-temperature and high-pressure gas is injected into the first heat exchange tube 602 through the liquid inlet pipe 7 through the compressor 10. At this time, the end of the liquid inlet pipe 7 close to the compressor 10 is located in the U-shaped electric heating plate 801. The U-shaped electric heating plate 801 is turned on to heat the liquid inlet pipe 7 to reduce the heat loss of the high-temperature and high-pressure gas in the liquid inlet pipe 7 during the process of entering the first heat exchange tube 602. In the process of cleaning the scale in the heat exchange box 601, the external water inlet device is closed so that the cold water in the cold water pipe 6086 does not flow into the heat exchange box 601. At this time, the extended end of the first cylinder 6082 is in the longest state, the first piston 6083 blocks the output end of the connecting pipe 6085, the control valve 4 is opened, and the cleaning agent is injected into the heat exchange box 601 through the feed pipe 5. The cleaning agent is mixed with the clean water in the heat exchange box 601 to form a cleaning liquid, which is used to soak the first heat exchange tube 602 and the second heat exchange tube 609 to facilitate the removal of a small amount of scale on the surface of the second heat exchange tube 609. After soaking for a period of time, the extended end of the first cylinder 6082 is controlled to shrink to the shortest, and the first piston 6083 and The output end of the connecting pipe 6085 is separated, so that the sewage carrying small particles of scale in the heat exchange box 601 passes through the filter 6081 and the connecting pipe 6085, and is discharged through the sewage pipe 6084. In the process of the sewage passing through the filter 6081, it is convenient to wash away the blockage accumulated on the filter 6081, thereby extending the working time of the filter 6081. Then, the extended end of the second cylinder 603 is controlled to shrink to half its length, and the lever 613 contacts the transmission rod 604, and the through hole 614 is blocked by the first sealing plug 611. At this time, the second piston 616 is still located in the L-shaped tube 6087, and then the cleaning agent and clean water are injected into the heat exchange box 601 through the feed pipe 5 to obtain a higher concentration. The cleaning liquid is used to soak the first heat exchange tube 602, so that the thick scale on the surface of the first heat exchange tube 602 is soaked twice, which is convenient for efficient removal. The extended end of the second cylinder 603 is continued to be controlled to shrink to the shortest, so that the second piston 616 is separated from the L-shaped tube 6087, and the first sealing plug 611 still blocks the through hole 614. Clean water is injected into the heat exchange box 601 through the feed pipe 5, and the sewage carrying large particles of scale is discharged from the sewage pipe 6084 along the L-shaped tube 6087. At the same time, the driving rod 604 is driven to flip through the lever 613, so that the blocking rod 606 drives the second sealing plug 607 to block the cold water pipe 6086 to prevent the sewage from flowing back into the heat exchange box 601;When the transmission rod 604 turns over, the roller drives the push-pull rod 804 to move horizontally, so that the L-shaped turning frame 805 turns over, driving the U-shaped electric heating plate 801 to rotate to the top of the evaporator 9. The air intake fan 1 cooperates with the U-shaped electric heating plate 801 to generate a hot air flow through the evaporator 9, which is convenient for cleaning the frost on the surface of the evaporator 9 to avoid affecting the normal working efficiency of the evaporator 9.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A regional energy transmission split-type heat pump unit, comprising a support base (3), a protective cover (2) being fixedly mounted on the top of the support base (3), characterized in that: A bracket (11) is arranged inside the protective cover (2), a compressor (10) is fixedly mounted on the top of the bracket (11), and an evaporator (9) and a heating mechanism (6) are arranged on both sides of the bracket (11), and an input end of the compressor (10) is connected to an output end of the evaporator (9); The heating mechanism (6) comprises a heat exchange box (601) fixedly connected to the support seat (3); a liquid inlet pipe (7) is inserted into the top of the heat exchange box (601); the input end of the liquid inlet pipe (7) is connected to the output end of the compressor (10); a partition (615) is fixedly installed inside the heat exchange box (601); a through hole (614) is opened in the middle of the partition (615); and a backflow prevention unit is arranged below the partition (615); and a sewage discharge unit (608) is arranged on the side of the heat exchange box (601).

2. A regional energy transmission split type heat pump unit according to claim 1, characterized in that: A first heat exchange tube (602) is fixedly inserted on the partition (615) on one side of the through hole (614); the input end of the first heat exchange tube (602) is connected to the output end of the liquid inlet tube (7); and the output end of the first heat exchange tube (602) is connected to the second heat exchange tube (609); the output end of the second heat exchange tube (609) passes through the heat exchange box (601).

3. A regional energy transmission split type heat pump unit according to claim 1, characterized in that: The heat exchange box (601) is provided with a transmission rod (604) that is rotatable toward the side of the bracket (11); the side of the heat exchange box (601) away from the bracket (11) is connected to a hot water pipe (610); and the top of the heat exchange box (601) is connected to a feed pipe (5); the top end of the feed pipe (5) passes through the protective cover (2), and a control valve (4) is fixedly installed in the middle of the feed pipe (5).

4. A regional energy transmission split type heat pump unit according to claim 1, characterized in that: The sewage discharge unit (608) comprises a cold water pipe (6086) connected to the bottom of the heat exchange box (601); the middle of the cold water pipe (6086) is respectively connected to an L-shaped pipe (6087) and a connecting pipe (6085); the L-shaped pipe (6087) is located above the connecting pipe (6085); a one-way valve is fixedly installed at the end of the cold water pipe (6086) away from the heat exchange box (601); a filter screen (6081) is fixedly installed on the inner wall of the middle part of the cold water pipe (6086); the position of the filter screen (6081) corresponds to the position of the output end of the L-shaped pipe (6087).

5. A regional energy transmission split type heat pump unit according to claim 4, characterized in that: The output end of the connecting pipe (6085) is connected to a sewage pipe (6084), and a first cylinder (6082) is fixedly installed at the bottom of the support seat (3). The protruding end of the first cylinder (6082) passes through the sewage pipe (6084), and a first piston (6083) for blocking the output end of the connecting pipe (6085) is fixedly installed at the protruding end of the first cylinder (6082).

6. A regional energy transmission split type heat pump unit according to claim 1, characterized in that: A first sealing plug (611) is provided on the top of the partition (615), the position of the first sealing plug (611) corresponds to the position of the through hole (614), and the first fixing rod (617) and the second fixing rod (612) are fixedly connected on both sides of the first sealing plug (611), one end of the first fixing rod (617) is fixedly connected to the second piston (616), and the second piston (616) is slidably connected to the inner wall of the L-shaped tube (6087); A second cylinder (603) is fixedly installed in the middle of the bracket (11); the protruding end of the second cylinder (603) is slidably connected to the middle of the transmission rod (604) via a shift rod (613); one end of the second fixed rod (612) movably passes through the heat exchange box (601) and is fixedly connected to the protruding end of the second cylinder (603).

7. A regional energy transmission split type heat pump unit according to claim 1, characterized in that: The anti-backflow unit includes a blocking rod (606) movably inserted at the bottom of the side of the heat exchange box (601), one end of the blocking rod (606) is fixedly installed with a second sealing plug (607) for blocking the cold water pipe (6086), and the other end of the blocking rod (606) is movably connected to the bottom of the transmission rod (604); the end of the blocking rod (606) away from the second sealing plug (607) is fixedly installed with a first baffle (605), and a first thrust spring is elastically arranged between the first baffle (605) and the heat exchange box (601).

8. A regional energy transmission split type heat pump unit according to claim 1, characterized in that: A drying mechanism (8) for cleaning frost on the surface of the evaporator (9) is arranged above the compressor (10), the drying mechanism (8) comprising an L-shaped flip frame (805) rotatably connected to the top of the evaporator (9), one end of the L-shaped flip frame (805) being fixedly connected to a U-shaped electric heating plate (801), the position of the U-shaped electric heating plate (801) corresponding to the position of the liquid inlet pipe (7).

9. A regional energy transmission split type heat pump unit according to claim 8, characterized in that: Two guide frames (803) are fixedly mounted on the inner wall of the protective cover (2), and a push-pull rod (804) is movably inserted on the inner wall of the two guide frames (803), one end of the push-pull rod (804) is rotatably connected to a roller, and the roller is rollingly connected to the top of the transmission rod (604), and the other end of the push-pull rod (804) is movably connected to the middle of the L-shaped flip frame (805).

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