Floating coil displacement heat exchanger

Abstract

The invention relates to the technical field of heat exchangers, and discloses a floating coil displacement heat exchanger which comprises a shell, a coil heating assembly for guiding water flow to flow is arranged in the shell, and a vibration cleaning mechanism for cleaning the coil heating assembly is arranged in the coil heating assembly. A sediment scraping mechanism for cleaning the bottom end of the interior of the shell is arranged at the bottom end of the interior of the shell, when a flow fan conducts scraping, an arranged first fixing block rotates, when the high point of the first fixing block makes contact with the high point of a vibration block, the first fixing block will push the vibration block and a vibration cover to move downwards, and therefore the flow fan conducts scraping; when a low point of a first fixing block is in contact with a low point of a vibration block, the vibration block and a vibration cover move upwards under the action of a first spring, and when the vibration cover drives a first vibration rod to move up and down, a second vibration rod vibrates and flaps a second coil pipe and a first coil pipe; therefore, the effects of cleaning and vibration cleaning of the scale on the surfaces of the second coil pipe and the first coil pipe are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heat exchangers, and particularly provides a floating coil volumetric heat exchanger. BACKGROUND

[0002] The floating coil volumetric heat exchanger is a common partition heat exchanger, is mainly used for a hot water supply system, and adopts copper pipes for heat transfer parts; the heat transfer pipes are made into spiral shapes and are floatingly arranged in a shell; the heat transfer pipes of the heat exchanger can float up and down and vibrate at high frequencies when water flows through, so that the heated water is disturbed, thereby enhancing the heat transfer effect and automatically removing scale.

[0003] The patent with the publication number CN 221037060 U discloses a volumetric heat exchanger with floating coils, which comprises a shell, a base arranged at the lower end of the shell for support, a motor arranged at the top of the shell, a rotating shaft suspended in the shell and connected with the motor, a stirring rod arranged at the bottom of the rotating shaft in a transverse mode, a heat medium inlet and a heat medium outlet arranged on the side wall of the shell, two floating coils arranged in the shell for connecting the heat medium inlet and the heat medium outlet, and an elastic connecting pipe connected between the two floating coils. The hollow rotating shaft and the stirring rod are arranged, and water spraying holes are arranged on the surfaces of the rotating shaft and the stirring rod; the water spraying holes effectively wash the inner wall of the shell under the action of pressure; the rotating shaft rotates under the driving of the motor, so that the water flow in the shell has greater flowability, the vibration of the floating coil is improved, and the heat exchange effect is better; the elastic connecting pipes arranged at the two ends of the floating coil can make the floating coil vibrate more strongly under the water flow, and reduce scale formation.

[0004] The application improves the floating coil volumetric heat exchanger; the rotating shaft rotates under the driving of the motor, so that the water flow in the shell has greater flowability, the vibration of the floating coil is improved, and the heat exchange effect is better; the floating coil in the device is only washed by the water spraying holes, and the scale is not easy to be washed off; meanwhile, the washed scale is easy to accumulate on the lower surface of the device, and therefore, the application provides a floating coil volumetric heat exchanger. SUMMARY

[0005] The application aims at solving the problems in the prior art, and provides a floating coil volumetric heat exchanger.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A floating coil volumetric heat exchanger, comprising a shell, the inside of the shell is provided with a coil heating assembly for guiding water flow, the inside of the coil heating assembly is provided with a vibration cleaning mechanism for cleaning the coil heating assembly, the inside bottom end of the shell is provided with a sediment scraping mechanism for cleaning the inside bottom end of the shell, the side surface of the shell is provided with a transmission mechanism for providing power for the vibration cleaning mechanism, the inside of the shell is fixedly connected with a fixed frame, the inside of the fixed frame is rotatably connected with a rotating rod.

[0007] Preferably, the vibration cleaning mechanism comprises a cleaning rod fixedly connected to the outer surface of the rotating rod, the lower surface of the cleaning rod is fixedly connected with a cleaning brush, the outer surface of the rotating rod is fixedly connected with a flow fan and a first fixed block, the outer surface of the rotating rod is rotatably connected with a fixed ring and a vibration cover, the outer surface of the rotating rod is sleeved with a first spring, the upper surface of the vibration cover is fixedly connected with a vibration block, the side surface of the vibration cover is fixedly connected with a first vibration rod, the outer surface of the first vibration rod is fixedly connected with a fixed rod, the outer surface of the fixed rod is slidably connected with a sleeve rod, the upper end of the fixed rod is fixedly connected with a second spring, and the upper surface of the sleeve rod is fixedly connected with a second vibration rod.

[0008] Preferably, the bottom end of the first fixed block and the top end of the vibration block are uneven curved surfaces, the first spring is arranged between the fixed ring and the vibration cover, the second spring is arranged between the fixed rod and the second vibration rod, and two fixed rods are arranged on the upper and lower sides of the first vibration rod respectively.

[0009] Preferably, the coil heating assembly comprises a second vertical pipe and a first vertical pipe fixedly connected to the inside of the shell, the side surface of the second vertical pipe is fixedly connected with a second coil, the side surface of the first vertical pipe is fixedly connected with a first coil, the inside of the second coil is fixedly connected with a first connecting pipe, and the side surface of the first connecting pipe is fixedly connected with a limiting frame.

[0010] Preferably, the number of the second coil and the first coil fixedly arranged on the second vertical pipe and the first vertical pipe is multiple, and the number of the second coil and the first coil is the same, the inside of the second coil and the first coil is connected through the first connecting pipe, and the first vibration rod is slidably connected in the inside of the limiting frame.

[0011] Preferably, the sediment scraping mechanism comprises a fixed plug fixedly connected to the bottom end of the rotating rod, the outer surface of the rotating rod is rotatably connected with a wall hanging frame, the lower end of the wall hanging frame is fixedly connected with a plug rod, and the upper surface of the wall hanging frame is fixedly connected with a buoyancy ring.

[0012] Preferably, the transmission mechanism comprises a motor fixedly connected to the side surface of the shell, a first trapezoidal gear fixedly connected to the output shaft of the motor, a fixed box fixedly connected to the inside of the shell, a transmission shaft rotatably connected to the inside of the fixed box, a third trapezoidal gear and a second trapezoidal gear fixedly connected to the outer surface of the transmission shaft, and a fourth trapezoidal gear fixedly connected to the outer surface of the rotating rod.

[0013] Preferably, the fourth trapezoidal gear is meshingly connected with the third trapezoidal gear, the transmission shaft is rotatably connected to the inside of the shell, the second trapezoidal gear is meshingly connected with the first trapezoidal gear, and the rotating rod is rotatably connected to the inside of the fixed box.

[0014] Preferably, the upper surface of the shell is fixedly connected with an exhaust port, a hot water outlet pipe and a second fixed block, the side surface of the shell is fixedly connected with a second connecting pipe, the inside of the second connecting pipe is fixedly connected with a water inlet and a drain, the lower surface of the shell is fixedly connected with a blowdown port, a hot water inlet pipe and a support frame, and the lower portion of the hot water outlet pipe is fixedly connected with a third connecting pipe.

[0015] Preferably, the hot water outlet pipe and the second vertical pipe are connected through the third connecting pipe, the hot water inlet pipe is fixedly connected below the first vertical pipe, and the support frame is provided with three.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. The vibration cleaning mechanism is arranged to vibrate and clean the scale on the outer surfaces of the second coil pipe and the first coil pipe. When the scale on the surfaces of the second coil pipe and the first coil pipe is cleaned, the rotating rod is rotated to drive the cleaning rod to rotate, the cleaning brush is arranged to scrape off the scale on the surface of the second coil pipe, the flow direction fan is arranged to achieve the effect of circulating and stirring the hot water in the shell from top to bottom, the first fixed block is arranged to rotate, the high point of the first fixed block is arranged to touch the high point of the vibration block, the first fixed block is arranged to drive the vibration block and the vibration cover to move downward, the low point of the first fixed block is arranged to touch the low point of the vibration block, the vibration block and the vibration cover are arranged to move upward under the action of the first spring, the vibration cover drives the first vibration rod to move upward and downward, and the second vibration rod vibrates and beats the second coil pipe and the first coil pipe, so that the scale on the surfaces of the second coil pipe and the first coil pipe is cleaned and vibrated.

[0017] 2. The sediment scraping mechanism is arranged to scrape and drain the scale cleaned from the lower surface of the shell. When the blowdown port is used for blowdown, the buoyancy ring is arranged to move downward under the action of buoyancy due to the decrease of water level, the fixed insertion block is arranged to be connected with the insertion rod, the rotating rod is arranged to drive the wall-mounted bracket to rotate, and the scale deposited on the lower surface of the shell is scraped and drained. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A front view of a floating coil volumetric heat exchanger according to the present application; Figure 2 A side sectional view of a floating coil volumetric heat exchanger according to the present application; Figure 3 An enlarged view of A of the present application; Figure 2 Figure 4 An enlarged view of B of the present application; Figure 2 Figure 5 An internal structure view of a floating coil volumetric heat exchanger according to the present application; Figure 6 An enlarged view of C of the present application; Figure 5 Figure 7 A vibration cleaning mechanism schematic view of a floating coil volumetric heat exchanger according to the present application; Figure 8 An enlarged view of D of the present application; Figure 7 Figure 9 A coil heating mechanism schematic view of a floating coil volumetric heat exchanger according to the present application.

[0019] LEGEND: 1, housing; 2, coil heating assembly; 201, second vertical pipe; 202, first vertical pipe; 203, second coil; 204, first coil; 205, first connecting pipe; 206, limiting frame; 3, vibration cleaning mechanism; 301, cleaning rod; 302, cleaning brush; 303, flow direction fan; 304, first fixing block; 305, fixing ring; 306, vibration cover; 307, first vibration rod; 308, first spring; 309, vibration block; 310, second spring; 311, sleeve rod; 312, fixed rod; 313, second vibration rod; 4, precipitation scraping mechanism; 401, wall hanging frame; 402, insertion rod; 403, fixed insertion block; 404, buoyancy ring; 5, transmission mechanism; 501, motor; 502, first trapezoidal gear; 503, fixed box; 504, transmission shaft; 505, third trapezoidal gear; 506, second trapezoidal gear; 507, fourth trapezoidal gear; 6, exhaust port; 7, second connecting pipe; 8, hot water outlet pipe; 9, sewage outlet; 10, hot water inlet pipe; 11, water inlet; 12, drain outlet; 13, support frame; 14, second fixing block; 15, third connecting pipe; 16, fixed frame; 17, rotating rod. DETAILED DESCRIPTION

[0020] ​​​​To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-9 The floating coil volumetric heat exchanger shown includes a shell 1, a coil heating assembly 2 for guiding water flow is disposed inside the shell 1, a vibration cleaning mechanism 3 for cleaning the coil heating assembly 2 is disposed inside the coil heating assembly 2, a sediment scraping mechanism 4 for cleaning the bottom of the shell 1 is disposed inside the shell 1, a transmission mechanism 5 for providing power to the vibration cleaning mechanism 3 is disposed on the side surface of the shell 1, a fixed frame 16 is fixedly connected inside the shell 1, and a rotating rod 17 is rotatably connected inside the fixed frame 16.

[0023] The vibration cleaning mechanism 3 includes a cleaning rod 301 fixedly connected to the outer surface of the rotating rod 17. A cleaning brush 302 is fixedly connected to the lower surface of the cleaning rod 301. A flow fan 303 and a first fixing block 304 are fixedly connected to the outer surface of the rotating rod 17. A fixing ring 305 and a vibration cover 306 are rotatably connected to the outer surface of the rotating rod 17. A first spring 308 is sleeved on the outer surface of the rotating rod 17. A vibration block 309 is fixedly connected to the upper surface of the vibration cover 306. A first vibration rod 307 is fixedly connected to the side surface of the vibration cover 306. The outer surface of the first vibration rod 307 is fixedly... A fixed rod 312 is fixedly connected, and a sleeve rod 311 is slidably connected to the outer surface of the fixed rod 312. A second spring 310 is fixedly connected to the upper end of the fixed rod 312, and a second vibration rod 313 is fixedly connected to the upper surface of the sleeve rod 311. The bottom end of the first fixed block 304 and the top end of the vibration block 309 are uneven curved surfaces. The first spring 308 is disposed between the fixed ring 305 and the vibration cover 306, and the second spring 310 is disposed between the fixed rod 312 and the second vibration rod 313. Two fixed rods 312 are respectively disposed on the upper and lower sides of a first vibration rod 307.

[0024] Further, when cleaning the scale on the surface of the second coil pipe 203 and the first coil pipe 204, the cleaning rod 301 is rotated by rotating the rotating rod 17, and the scale on the surface of the second coil pipe 203 is scraped off by the cleaning brush 302, and the hot water in the shell 1 is circulated and stirred from top to bottom by the rotation of the flow direction fan 303. When the flow direction fan 303 is scraped, the first fixed block 304 is rotated, and when the high point of the first fixed block 304 touches the high point of the vibration block 309, the first fixed block 304 pushes the vibration block 309 and the vibration cover 306 to move downward, and when the low point of the first fixed block 304 touches the low point of the vibration block 309, the vibration block 309 and the vibration cover 306 are moved upward under the action of the first spring 308. When the vibration cover 306 drives the first vibration rod 307 to move up and down, the second vibration rod 313 vibrates and beats the second coil pipe 203 and the first coil pipe 204, so as to achieve the effect of cleaning and vibrating the scale on the surface of the second coil pipe 203 and the first coil pipe 204.

[0025] The coil heating assembly 2 comprises a second vertical pipe 201 and a first vertical pipe 202 fixedly connected in the shell 1, the side surface of the second vertical pipe 201 is fixedly connected with a second coil pipe 203, the side surface of the first vertical pipe 202 is fixedly connected with a first coil pipe 204, the inside of the second coil pipe 203 is fixedly connected with a first connecting pipe 205, the side surface of the first connecting pipe 205 is fixedly connected with a limiting frame 206, the number of the second coil pipe 203 and the first coil pipe 204 fixed on the second vertical pipe 201 and the first vertical pipe 202 is multiple, and the number of the second coil pipe 203 and the first coil pipe 204 is the same, the inside of the second coil pipe 203 and the first coil pipe 204 is connected through the first connecting pipe 205, and the first vibration rod 307 is slidingly connected in the inside of the limiting frame 206.

[0026] Further, the water that needs to be heated entering through the hot water inlet pipe 10 enters the first vertical pipe 202 and then flows into the inside of the first coil pipe 204, and then is transported to the inside of the second coil pipe 203 through the first connecting pipe 205, and is transported out from the hot water outlet pipe 8 through the second vertical pipe 201 and the third connecting pipe 15 to achieve the heating effect.

[0027] The sediment scraping mechanism 4 comprises a fixed plug 403 fixedly connected to the bottom end of the rotating rod 17, a wall hanging bracket 401 rotatably connected to the outer surface of the rotating rod 17, a plug rod 402 fixedly connected to the lower end of the wall hanging bracket 401, a buoyancy ring 404 fixedly connected to the upper surface of the wall hanging bracket 401, and the transmission mechanism 5 comprises a motor 501 fixedly connected to the side surface of the shell 1, a first trapezoidal gear 502 fixedly connected to the output shaft of the motor 501, a fixed box 503 fixedly connected to the inside of the shell 1, a transmission shaft 504 rotatably connected to the inside of the fixed box 503, a third trapezoidal gear 505 and a second trapezoidal gear 506 fixedly connected to the outer surface of the transmission shaft 504, a fourth trapezoidal gear 507 fixedly connected to the outer surface of the rotating rod 17, the fourth trapezoidal gear 507 and the third trapezoidal gear 505 being in meshing connection, the transmission shaft 504 being rotatably connected to the inside of the shell 1, the second trapezoidal gear 506 and the first trapezoidal gear 502 being in meshing connection, and the rotating rod 17 being rotatably connected to the inside of the fixed box 503.

[0028] Further, when sewage is discharged through the sewage outlet 9, the buoyancy ring 404 provided will move downward under the action of buoyancy due to the lowering of the water level, and when the fixed plug 403 is clamped with the plug rod 402, the rotating rod 17 will rotate the wall hanging bracket 401, so as to scrape and discharge the scale deposited on the lower surface of the shell 1.

[0029] The upper surface of the shell 1 is fixedly connected with the exhaust port 6, the hot water outlet pipe 8 and the second fixed block 14, the side surface of the shell 1 is fixedly connected with the second connecting pipe 7, the inside of the second connecting pipe 7 is fixedly connected with the water inlet 11 and the drain 12, the lower surface of the shell 1 is fixedly connected with the sewage outlet 9, the hot water inlet pipe 10 and the support bracket 13, the lower side of the hot water outlet pipe 8 is fixedly connected with the third connecting pipe 15, the hot water outlet pipe 8 and the second vertical pipe 201 are connected through the third connecting pipe 15, the hot water inlet pipe 10 is fixedly connected below the first vertical pipe 202, and the support bracket 13 is provided with three.

[0030] Further, hot water is added into the shell 1 through the water inlet 11, and then the internal hot water can be pumped out through the drain 12, and the exhaust port 6 can be further provided for exhaust.

[0031] Working principle: the water to be heated through hot water inlet pipe 10 into the shell 1 inside, through the hot water inlet pipe 10 into the first vertical pipe 202 to enter the first coil pipe 204 inside, then through the first connecting pipe 205 to the second coil pipe 203 inside, through the second vertical pipe 201 and third connecting pipe 15 from the hot water outlet pipe 8 to send out to achieve the effect of heating, when cleaning the scale on the surface of the second coil pipe 203 and the first coil pipe 204, by rotating the rotating rod 17 to drive the cleaning rod 301 to rotate, by setting the cleaning brush 302 to scrape off the scale on the surface of the second coil pipe 203, at the same time, the flow fan 303 rotates to achieve the effect of circulating stirring the hot water in the shell 1 from top to bottom, when the flow fan 303 is scraped, the first fixed block 304 is set to rotate, when the high point of the first fixed block 304 touches the high point of the vibration block 309, the first fixed block 304 will push the vibration block 309 and the vibration cover 306 to move downward, when the low point of the first fixed block 304 touches the low point of the vibration block 309, under the action of the first spring 308, the vibration block 309 and the vibration cover 306 will move upward, when the vibration cover 306 drives the first vibration rod 307 to move up and down, the second vibration rod 313 will vibrate and pat the second coil pipe 203 and the first coil pipe 204, so as to achieve the effect of cleaning and vibrating the scale on the surface of the second coil pipe 203 and the first coil pipe 204, when discharging through the drain 9, the buoyancy ring 404 is set under the action of buoyancy, because the water level is lowered, the buoyancy ring 404 drives the wall-mounted bracket 401 to move downward, when the fixed plug 403 is connected with the plug 402, the rotating rod 17 drives the wall-mounted bracket 401 to rotate, so as to achieve the effect of scraping and discharging the scale deposited on the lower surface of the shell 1.

[0032] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A floating coil positive displacement heat exchanger comprising a housing (1), characterised in that: The inside of the shell (1) is provided with a coil heating assembly (2) for guiding water flow, the inside of the coil heating assembly (2) is provided with a vibration cleaning mechanism (3) for cleaning the coil heating assembly (2), the inside bottom end of the shell (1) is provided with a sediment scraping mechanism (4) for cleaning the inside bottom end of the shell (1), the side surface of the shell (1) is provided with a transmission mechanism (5) for providing power for the vibration cleaning mechanism (3), the inside of the shell (1) is fixedly connected with a fixed frame (16), and the inside of the fixed frame (16) is rotatably connected with a rotating rod (17).

2. A floating coil volumetric heat exchanger according to claim 1, characterized in that: The vibration cleaning mechanism (3) comprises a cleaning rod (301) fixedly connected to the outer surface of the rotating rod (17), a cleaning brush (302) fixedly connected to the lower surface of the cleaning rod (301), a flow direction fan (303) and a first fixed block (304) fixedly connected to the outer surface of the rotating rod (17), a fixed ring (305) and a vibration cover (306) rotatably connected to the outer surface of the rotating rod (17), a first spring (308) sleeved on the outer surface of the rotating rod (17), a vibration block (309) fixedly connected to the upper surface of the vibration cover (306), a first vibration rod (307) fixedly connected to the side surface of the vibration cover (306), a fixed rod (312) fixedly connected to the outer surface of the first vibration rod (307), a sleeve rod (311) slidably connected to the outer surface of the fixed rod (312), a second spring (310) fixedly connected to the upper end of the fixed rod (312), and a second vibration rod (313) fixedly connected to the upper surface of the sleeve rod (311).

3. A floating coil volumetric heat exchanger according to claim 2, wherein: The bottom end of the first fixed block (304) and the top end of the vibration block (309) are uneven curved surfaces, the first spring (308) is arranged between the fixed ring (305) and the vibration cover (306), the second spring (310) is arranged between the fixed rod (312) and the second vibration rod (313), and two fixed rods (312) are arranged on the upper and lower sides of each first vibration rod (307).

4. A floating coil volumetric heat exchanger according to claim 2, wherein: The coil heating assembly (2) comprises a second vertical pipe (201) and a first vertical pipe (202) fixedly connected to the inside of the shell (1), a second coil pipe (203) fixedly connected to the side surface of the second vertical pipe (201), a first coil pipe (204) fixedly connected to the side surface of the first vertical pipe (202), a first connecting pipe (205) fixedly connected to the inside of the second coil pipe (203), and a limiting frame (206) fixedly connected to the side surface of the first connecting pipe (205).

5. A floating coil volumetric heat exchanger according to claim 4, wherein: The number of the second coil pipes (203) and the first coil pipes (204) fixed on the second vertical pipe (201) and the first vertical pipe (202) is multiple, and the number of the second coil pipes (203) and the first coil pipes (204) is the same, the inside of the second coil pipe (203) and the first coil pipe (204) are connected through the first connecting pipe (205), and the first vibration rod (307) is slidably connected in the inside of the limiting frame (206).

6. A floating coil volumetric heat exchanger according to claim 1, characterized in that: The sediment scraping mechanism (4) comprises a fixed insertion block (403) fixedly connected to the bottom end of a rotating rod (17), the outer surface of the rotating rod (17) is rotatably connected with a wall-mounted rack (401), the lower end of the wall-mounted rack (401) is fixedly connected with an insertion rod (402), and the upper surface of the wall-mounted rack (401) is fixedly connected with a buoyancy ring (404).

7. A floating coil volumetric heat exchanger as claimed in claim 1, wherein: The transmission mechanism (5) comprises a motor (501) fixedly connected to the side surface of the shell (1), a first trapezoidal gear (502) fixedly connected to the output shaft of the motor (501), a fixed box (503) fixedly connected to the inside of the shell (1), a transmission shaft (504) rotatably connected to the inside of the fixed box (503), a third trapezoidal gear (505) and a second trapezoidal gear (506) fixedly connected to the outer surface of the transmission shaft (504), and a fourth trapezoidal gear (507) fixedly connected to the outer surface of the rotating rod (17).

8. A floating coil volumetric heat exchanger according to claim 7, characterised in that: The fourth trapezoidal gear (507) and the third trapezoidal gear (505) are meshedly connected, the transmission shaft (504) is rotatably connected to the inside of the shell (1), the second trapezoidal gear (506) and the first trapezoidal gear (502) are meshedly connected, and the rotating rod (17) is rotatably connected to the inside of the fixed box (503).

9. A floating coil volumetric heat exchanger according to claim 5, wherein: The upper surface of the shell (1) is fixedly connected with an exhaust port (6), a hot water outlet pipe (8) and a second fixed block (14), the side surface of the shell (1) is fixedly connected with a second connecting pipe (7), the inside of the second connecting pipe (7) is fixedly connected with a water inlet (11) and a drain (12), the lower surface of the shell (1) is fixedly connected with a blowdown port (9), a hot water inlet pipe (10) and a support rack (13), and the lower portion of the hot water outlet pipe (8) is fixedly connected with a third connecting pipe (15).

10. A floating coil volumetric heat exchanger according to claim 9, wherein: The hot water outlet pipe (8) and the second vertical pipe (201) are connected through the third connecting pipe (15), the hot water inlet pipe (10) is fixedly connected below the first vertical pipe (202), and the support rack (13) is provided with three.

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