阅读说明：本技术 换热盘管组件、热水箱、热水器及换热盘管组件控制方法 (Heat exchange coil assembly, hot water tank, water heater and control method of heat exchange coil assembly ) 是由 郭锦 罗攀 胡乾龙 崔润中 于 2021-09-16 设计创作，主要内容包括：本发明提供了一种热盘管组件、热水箱、热水器及换热盘管组件控制方法,涉及热水器技术领域,解决了换热盘管对热水箱内水加热,制备热水时间长的技术问题。该换热盘管组件包括支撑驱动组件和内部流动有换热剂的换热盘管,支撑驱动组件与换热盘管传动连接,换热盘管在支撑驱动组件的带动下位于水箱内可移动的设置,且换热盘管能移动并停留至水箱的出水口位置处。本发明换热盘管组件在支撑驱动组件的带动下在水箱内移动,当用户需要紧急获取热水时,可将换热盘管组件移动至出水口位置处,实现对水箱内出水口位置处的水首先制热,这样当打开水箱的出水口时,能够首先获取出水口附近加热后的水,满足用户紧急获取热水的需求。(The invention provides a hot coil assembly, a hot water tank, a water heater and a control method of the heat exchange coil assembly, relates to the technical field of water heaters, and solves the technical problems that the heat exchange coil heats water in the hot water tank and the hot water preparation time is long. This heat exchange coil subassembly has the heat transfer coil of heat transfer agent including supporting drive assembly and inside flow, supports drive assembly and is connected with the heat transfer coil transmission, and heat transfer coil is located mobilizable setting in the water tank under the drive that supports drive assembly, and heat transfer coil can remove and stop to the delivery port position department of water tank. The heat exchange coil assembly moves in the water tank under the driving of the supporting driving assembly, when a user needs to obtain hot water in an emergency, the heat exchange coil assembly can be moved to the position of the water outlet, the water at the position of the water outlet in the water tank is heated firstly, and therefore when the water outlet of the water tank is opened, the heated water near the water outlet can be obtained firstly, and the requirement of the user on obtaining hot water in an emergency is met.)

1. A heat exchange coil assembly comprising a support drive assembly and a heat exchange coil (1) having a heat exchange agent flowing therein, wherein: the supporting driving assembly is in transmission connection with the heat exchange coil (1), the heat exchange coil (1) is movably arranged in the water tank (4) under the driving of the supporting driving assembly, and the heat exchange coil (1) can move to the position of a water outlet of the water tank (4) and stop for heating.

2. A heat exchange coil assembly according to claim 1, wherein the heat exchange agent inlet of the heat exchange coil (1) is connected with an inlet line (2) and the heat exchange agent outlet of the heat exchange coil (1) is connected with an outlet line (3), wherein:

the inlet pipeline (2) and the outlet pipeline (3) are telescopically arranged when the heat exchange coil (1) moves so as to enable a heat exchange agent to flow in the heat exchange coil (1).

3. A heat exchange coil assembly according to claim 2, wherein the inlet and outlet tubes (2, 3) each comprise a moving tube (22) and a fixed tube (21) in communication, wherein:

one of the moving tube (22) and the fixed tube (21) is an inner tube, the other is an outer tube, at least part of the inner tube extends into the outer tube;

the movable pipe (22) is communicated with the heat exchange coil (1), and the heat exchange coil (1) can pull or push the movable pipe (22) to move when moving and adjust the length of the inner pipe body in the outer pipe body.

4. A heat exchange coil assembly according to claim 3, wherein the fixed tube (21) is connected to the inner or outer wall with a first (6) and a second (5) position-limiting portion, wherein:

first spacing portion (6) are located spacing portion (5) top of second, just remove at least part of pipe (22) and be located first spacing portion (6) with between spacing portion (5) of second, first spacing portion (6) are used for leaning on remove pipe (22) and deviate from the tip of heat exchange coil (1), spacing portion (5) of second are used for leaning on remove the wall of pipe (22) in order to restrict the displacement of removing pipe (22).

5. A heat exchange coil assembly according to claim 4, wherein the wall surface of the moving pipe (22) is provided with a raised structure (7), and the raised structure (7) abuts against the wall surface of the fixed pipe (21) so that the moving pipe (22) is stable when the heat exchange coil (1) stops moving.

6. The heat exchange coil assembly according to claim 5, wherein the protruding structures (7) are arranged at intervals along the axial direction of the movable tube (22), and the protruding structures (7) can pass through the second limiting portion (5) and move along with the heat exchange coil (1) under the driving of the heat exchange coil (1).

7. A heat exchanging coil assembly according to claim 6, characterized in that the raised structures (7) are telescopically arranged in the radial direction of the moving tube (22).

8. A heat exchange coil assembly according to any one of claims 5 to 7, wherein the moving tube (22) is provided with a groove (221) in a wall surface thereof, and the raised structure (7) comprises a protrusion (71) and an elastic member (72), wherein:

recess (221) are followed the radial setting of removal pipe (22), elastic component (72) are located in recess (221), just the stiff end of elastic component (72) with recess (221) are fixed, the free end of elastic component (72) with lug (71) fixed connection, lug (71) can with spacing portion (5) of second are impressed when extrudeing in recess (221), and with spacing portion (5) of second break away from the back by elastic component (72) promote to bulge in the position of removal pipe (22) wall.

9. A heat exchange coil assembly according to claim 1, wherein the support drive assembly includes a drive, a lead screw (83) and a guide (84), wherein:

the output shaft of the driving device is in transmission connection with the lead screw (83), a sliding block (82) is fixed on the heat exchange coil (1), the sliding block (82) is in threaded connection with the lead screw (83), the guide rail (84) is in sliding connection with the sliding block (82) and used for limiting the sliding block (82) to rotate, and the driving device can drive the heat exchange coil (1) to move up and down in forward rotation and reverse rotation.

10. A hot water tank, characterized in that it comprises a tank (4) and a heat exchange coil assembly according to any one of claims 1-9.

11. A water heater comprising the hot water tank of claim 10.

12. A heat exchange coil assembly control method, characterized in that, by using the heat exchange coil assembly of any one of claims 1 to 9, the water tank (4) moves the heat exchange coil (1) to the position of the water outlet of the water tank (4) and stops heating when emergency hot water is produced; when the water tank (4) normally produces hot water, the heat exchange coil (1) is positioned on one side, opposite to the water outlet, in the water tank (4), or the heat exchange coil (1) swings back and forth in the water tank (4).

13. A control method of a heat exchange coil assembly according to claim 11, characterized in that the water tank (4) when normally producing hot water, is carried out according to the following steps:

s1: detecting the average temperature T1 in the middle of the water tank (4) and the actual power P2 of the water tank (4); setting the target temperature as T0 and the rated hot water time as T0;

s2: calculating a target power P1, P1 ═ Cn ρ (T0-T1)/T0 of the water tank (4), wherein C is the specific heat capacity of water, ρ is the density of water, and n is the capacity of the water tank (4);

s3: comparing the target power P1 of the water tank (4) with the actual power P2 of the water tank (4);

when P1 is not more than P2, V is 0, and the heat exchange coil (1) is located on the side, opposite to the water outlet, in the water tank (4);

when P1 is more than P2, V is not equal to 0, the heat exchange coil (1) swings back and forth in the water tank (4), and the movement speed of the heat exchange coil (1) is

Technical Field

The invention relates to the technical field of water heaters, in particular to a hot coil assembly, a hot water tank, a water heater and a control method of a heat exchange coil assembly.

Background

At present, a hot water tank generally comprises a water tank and a heat exchange coil fixed on the water tank, wherein the heat exchange coil is provided with an inlet and an outlet which extend out of the water tank, a heat exchange agent enters the heat exchange coil from the inlet and flows out of the heat exchange coil through the outlet, and the heat exchange agent flowing in the heat exchange coil is used for exchanging heat with water in the water tank.

The water outlet of the prior art hot water tank is provided with the upper part of the tank, while the heat exchange coil is usually arranged at the bottom of the tank.

The applicant has found that the prior art has at least the following technical problems: the bottom of the heat exchange coil in the water tank is fixedly arranged, so that the heat exchange efficiency is low. The heat exchange coil needs to heat water in the whole water tank, and a user can obtain hot water, so that the heating time of the water in the water tank is long. When the user does not open the hot water tank in advance to produce hot water, but the user urgently needs to use the hot water, such as washing, washing and the like in a time-saving manner. In this case, if the whole hot water tank is heated, the water using time of the user is delayed.

Disclosure of Invention

The invention aims to provide a hot coil assembly, a hot water tank, a water heater and a control method of the heat exchange coil assembly, and aims to solve the technical problems that in the prior art, a heat exchange coil heats water in the hot water tank and the hot water preparation time is long; the technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a heat exchange coil assembly, which comprises a supporting driving assembly and a heat exchange coil in which a heat exchange agent flows, wherein: the supporting driving assembly is in transmission connection with the heat exchange coil, the heat exchange coil is movably arranged in the water tank under the driving of the supporting driving assembly, and the heat exchange coil can move and stop at the position of a water outlet of the water tank.

Preferably, the heat exchanger inlet of the heat exchanger coil is communicated with an inlet pipeline, the heat exchanger outlet of the heat exchanger coil is communicated with an outlet pipeline, wherein:

the inlet and outlet tubes are telescopically arranged to allow a heat transfer agent to flow within the heat transfer coil as the heat transfer coil is moved.

Preferably, the inlet pipeline and the outlet pipeline each include a moving pipe and a fixed pipe communicated with each other, wherein:

one of the moving tube and the fixed tube is an inner tube, and the other is an outer tube, and at least part of the inner tube extends into the outer tube;

the movable pipe is communicated with the heat exchange coil pipe, the heat exchange coil pipe can pull or push the movable pipe to move when moving, and the length of the inner pipe body in the outer pipe body is adjusted.

Preferably, the inner wall or the outer wall of the fixed pipe is connected with a first limit part and a second limit part, wherein:

first spacing portion is located spacing portion top of second, just the at least part of removal pipe is located first spacing portion with between the spacing portion of second, first spacing portion is used for supporting to lean on remove the pipe and deviate from heat exchange coil's tip, spacing portion of second is used for supporting to lean on the wall that removes the pipe is in order to restrict remove the displacement of pipe.

Preferably, a protruding structure is arranged on the wall surface of the movable pipe, and the protruding structure abuts against the wall surface of the fixed pipe, so that the movable pipe stops moving on the heat exchange coil pipe and keeps stable.

Preferably, the protruding structure is arranged more than two along the axial interval of the movable pipe, and the protruding structure can pass through the second limiting part under the driving of the heat exchange coil pipe and move along with the heat exchange coil pipe.

Preferably, the projection structure is telescopically arranged along the radial direction of the moving pipe.

Preferably, be provided with the recess on the wall of removal pipe, protruding structure includes lug and elastic component, wherein:

the recess is followed the radial setting of removal pipe, the elastic component is located in the recess, just the stiff end of elastic component with the recess is fixed, the free end of elastic component with lug fixed connection, the lug can with the spacing portion of second is impressed when extrudeing in the recess, and with spacing portion of second break away from the back quilt the elastic component promote to protrusion in the position of removal pipe wall.

Preferably, the support driving assembly comprises a driving device, a screw rod and a guide rail, wherein:

the output shaft of the driving device is in transmission connection with the lead screw, a sliding block is fixed on the heat exchange coil pipe and in threaded connection with the lead screw, the guide rail is in sliding connection with the sliding block and used for limiting the sliding block to rotate, and the driving device can drive the heat exchange coil pipe to move up and down in forward rotation and reverse rotation.

The invention also provides a hot water tank which comprises a water tank and the heat exchange coil assembly.

The invention also provides a water heater comprising the hot water tank.

The invention also provides a control method of the heat exchange coil assembly, when the water tank emergently produces hot water, the heat exchange coil is moved to the position of the water outlet of the water tank and stays for heating; when the water tank normally produces hot water, the heat exchange coil is positioned on one side of the water tank opposite to the water outlet, or the heat exchange coil swings back and forth in the water tank.

Preferably, when the water tank normally produces hot water, the method comprises the following steps:

s1: detecting the average temperature T1 in the middle of the water tank and the actual power P2 of the water tank; setting the target temperature as T0 and the rated hot water time as T0;

s2: calculating a target power P1, P1 ═ Cn ρ (T0-T1)/T0 of the water tank, wherein C is the specific heat capacity of water, ρ is the density of water, and n is the capacity of the water tank;

s3: comparing the target power P1 of the water tank with the actual power P2 of the water tank;

when P1 is not more than P2, V is 0, and the heat exchange coil is positioned on the side, opposite to the water outlet, in the water tank;

when P1 is greater than P2, V is not equal to 0, so that the heat exchange coil swings back and forth in the water tank, and the movement speed of the heat exchange coil is

Compared with the prior art, the heat exchange coil assembly, the hot water tank, the water heater and the control method of the heat exchange coil assembly have the following beneficial effects: the heat exchange coil assembly is driven by the supporting driving assembly to move in the water tank, when a user needs to obtain hot water in an emergency, the heat exchange coil assembly can be moved to the position of the water outlet, so that water at the position of the water outlet in the water tank can be heated firstly, and thus when the water outlet of the water tank is opened, the heated water near the water outlet can be obtained firstly; and the heat exchange coil can swing back and forth when moving in the water tank, can stir the water in the water tank, improves heat exchange efficiency. This hot-water tank has above-mentioned heat exchange coil assembly, can satisfy the user and promptly acquire hydrothermal demand under the prerequisite that does not change water tank volume and installation space, and can shorten the time of acquireing hydrothermal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a heat exchange coil located in a tank;

FIG. 2 is a schematic view of an axial cross-sectional structure of a heat exchange coil at the top in a water tank;

FIG. 3 is a schematic axial sectional view of the heat exchange coil located in the middle of the inside of the water tank;

FIG. 4 is a schematic view of an axial section structure of a heat exchange coil at the bottom in a water tank;

FIG. 5 is a schematic view of the mating structure of the moving tube and the fixed tube;

FIG. 6 is a schematic view of the outer wall structure on the moving tube;

FIG. 7 is a schematic view of a bump structure;

fig. 8 is a schematic view of the matching structure of the support driving assembly and the heat exchange coil.

In figure 1, a heat exchange coil; 2. an inlet line; 21. a fixed tube; 22. moving the tube; 221. a groove; 3. an outlet line; 4. a water tank; 5. a second limiting part; 6. a first limiting part; 7. a raised structure; 71. a bump; 72. an elastic member; 81. a motor; 82. a slider; 83. a screw rod; 84. a guide rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the invention provides a heat exchange coil assembly, a hot water tank, a water heater and a control method of the heat exchange coil assembly.

The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 8.

Example one

As shown in fig. 1 to 8, the present embodiment provides a heat exchange coil assembly, which includes a supporting driving assembly and a heat exchange coil 1 having a heat exchange agent flowing therein, wherein: the supporting driving assembly is in transmission connection with the heat exchange coil pipe 1, the heat exchange coil pipe 1 is movably arranged in the water tank 4 under the driving of the supporting driving assembly, and the heat exchange coil pipe 1 can move to the position of a water outlet of the water tank 4 and stop for heating.

Wherein, the water outlet of the hot water tank is usually provided with the upper part of the water tank 4, therefore, the heat exchange coil 1 in this embodiment is driven by the supporting driving component to be located in the water tank 4 and movably arranged up and down. Or, if the water outlet of the water tank 4 is arranged on the left side or the right side of the water tank 4, the heat exchange coil 1 is driven by the supporting and driving assembly to move left and right in the water tank 4.

In this embodiment, when a user needs to obtain hot water urgently, the heat exchange coil 1 moves and stays at a water outlet position in the water tank 4; under the hot water's of water tank 4 normal preparation circumstances, heat exchange coil 1 stops in water tank 4 one side relative with the delivery port, and in this embodiment, when the delivery port is located water tank 4's top, consequently, heat exchange coil 1 stops in water tank 4's bottom, perhaps heat exchange coil 1 is located water tank 4 internal up-down or horizontal hunting under the drive that supports drive assembly to mix the water in water tank 4, improve the heat exchange efficiency of heat exchange coil 1 and water tank 4 internal water.

The heat exchanger in the heat exchange coil 1 may be hot water or another fluid that can be used to heat the water in the water tank 4.

In the heat exchange coil assembly of the embodiment, the heat exchange coil assembly is driven by the supporting and driving assembly to move in the water tank 4, when a user needs to obtain hot water in an emergency, the heat exchange coil assembly can be moved to the position of the water outlet, so that water at the position of the water outlet in the water tank 4 can be heated firstly, and thus when the water outlet of the water tank 4 is opened, the heated water near the water outlet can be obtained firstly; and heat exchange coil 1 can the back and forth oscillation when removing in water tank 4, can stir the water in the water tank 4, improves heat exchange efficiency.

Referring to fig. 1 to 4, the heat exchange coil 1 has a spiral structure to increase a contact area of water with a heat exchange agent in a limited inner space of the water tank 4.

When the heat exchange coil 1 moves in the water tank 4, a heat exchange agent is constantly circulated in the heat exchange coil 1. As an alternative embodiment, referring to fig. 1-4, the heat exchange agent inlet of heat exchange coil 1 is connected to inlet pipeline 2, and the heat exchange agent outlet of heat exchange coil 1 is connected to outlet pipeline 3, wherein: the inlet pipe 2 and the outlet pipe 3 are telescopically arranged when the heat exchange coil 1 moves so as to enable the heat exchange agent to flow in the heat exchange coil 1.

Referring to fig. 1 to 3, when the water outlet is located at the top of the water tank 4 and the water tank 4 does not need to emergently produce hot water, the heat exchange coil 1 is stopped at the bottom of the water tank 4, so that the water in the whole water tank 4 is heated by the heat exchange coil 1 and then flows out from the water outlet at the top; when water tank 4 need promptly prepare hot water, support drive assembly and make heat exchange coil 1 rebound, and inlet line 2 and export pipeline 3 all shrink at heat exchange coil 1 rebound in-process, prevent to influence heat exchange coil 1's motion, guarantee that heat exchange coil 1 can remove to the delivery port position department at water tank 4 top. After having heated hot water promptly, when needing normally to prepare hot water, support drive assembly and drive heat exchange coil 1 downstream again, inlet line 2 and outlet line 3 extension this moment to guarantee all the time with heat exchange coil 1's intercommunication, descend to the bottom in the water tank 4 until heat exchange coil 1. The same applies when the water outlet is located at the bottom of the water tank 4 or at the side of the water tank 4.

The telescopic structure of the inlet pipeline 2 and the outlet pipeline 3 can ensure that the inlet pipeline 2 and the outlet pipeline 3 are always communicated with the heat exchange coil 1 when the heat exchange coil 1 moves, so that a heat exchange agent flows through the heat exchange coil 1 all the time.

As an embodiment not shown in the drawings, the inlet pipeline 2 and the outlet pipeline 3 are hoses with enough length, when the heat exchange coil 1 moves towards the direction close to the inlet pipeline 2 and the outlet pipeline 3, the inlet pipeline 2 and the outlet pipeline 3 are gradually stacked in the water tank 4, since both are hoses, the movement of the heat exchange coil 1 cannot be influenced, and the inlet pipeline 2 and the outlet pipeline 3 always allow the heat exchange agent to flow inside in the deformation process. When heat exchange coil 1 is moved away from inlet and outlet tubes 2, 3, the stack of inlet and outlet tubes 2, 3 is spread apart and is long enough to allow heat exchange coil 1 to move to the top or bottom within tank 4.

In the present embodiment, a specific implementation of the inlet pipeline 2 and the outlet pipeline 3 is provided, and referring to fig. 5, the inlet pipeline 2 and the outlet pipeline 3 in the present embodiment each include a moving pipe 22 and a fixed pipe 21 that are communicated with each other, and fig. 5 illustrates the inlet pipeline 2 as an example, where: one of the moving tube 22 and the fixed tube 21 is an inner tube, and the other is an outer tube, and at least part of the inner tube extends into the outer tube; the movable pipe 22 is communicated with the heat exchange coil 1, and the heat exchange coil 1 can pull or push the movable pipe 22 to move when moving, and adjust the length of the inner pipe body in the outer pipe body.

The "inner tube" refers to an inner tube in the sleeving structure of the movable tube 22 and the fixed tube 21, and the "outer tube" refers to an outer tube in the sleeving structure of the movable tube 22 and the fixed tube 21.

In this embodiment, the water outlet is located at the top of the water tank 4, as shown in fig. 5, the fixed pipe 21 is located at the upper part of the movable pipe 22, and at least a part of the movable pipe 22 is sleeved in the fixed pipe 21, that is, as shown in fig. 5, the fixed pipe 21 is an outer pipe body, the movable pipe 22 is an inner pipe body, and the movable pipe 22 is connected with the heat exchange coil 1, so that when the heat exchange coil 1 moves downward, the movable pipe 22 can be pulled to move downward, the length of the movable pipe 22 located in the fixed pipe 21 is reduced, and the inlet pipeline 2 and the outlet pipeline 3 are extended; in the same way, when the heat exchange coil 1 moves upwards, the movable pipe 22 can be pushed to move upwards, the length of the movable pipe 22 in the fixed pipe 21 is increased, and the inlet pipeline 2 and the outlet pipeline 3 are shortened.

By the structure, the inlet pipeline 2 and the outlet pipeline 3 stretch along with the movement of the heat exchange coil 1, and the inlet pipeline 2 and the outlet pipeline 3 are always communicated with the heat exchange coil 1 when the heat exchange coil 1 moves.

In this embodiment, the inner wall or the outer wall of the fixed tube 21 is connected with a first limiting portion and a second limiting portion 5, as shown in fig. 5, in the figure, the fixed tube 21 is an outer tube body, the movable tube 22 is an inner tube body, and the inner wall of the fixed tube 21 is connected with the first limiting portion and the second limiting portion 5; if the fixed pipe 21 is an inner pipe body and the movable pipe 22 is an outer pipe body, the outer wall of the fixed pipe 21 is connected with a first limiting part and a second limiting part 5; wherein: referring to fig. 5, the first limiting portion is located above the second limiting portion 5, at least a part of the moving tube 22 is located between the first limiting portion and the second limiting portion 5, the first limiting portion is used for abutting against the end portion, deviating from the heat exchange coil 1, of the moving tube 22, and the second limiting portion 5 is used for abutting against the wall surface of the moving tube 22 to limit the displacement of the moving tube 22.

As shown in fig. 5, the lower end of the movable tube 22 in fig. 5 is connected to the heat exchange coil 1, the upper end of the movable tube 22 abuts against the first limiting portion 6, the inlet pipeline 2 is in the maximum contraction state, the length of the inlet pipeline 2 is the minimum, and the heat exchange coil 1 stays at the water outlet position at the top of the water tank 4.

Referring to fig. 5, the first position-limiting portion 6 in this embodiment is a gasket, and the second position-limiting portion 5 is a retainer ring, which abuts against the outer wall of the movable tube 22 to limit the displacement of the movable tube 22.

In order to keep the inlet pipeline 2 and the outlet pipeline 3 stable at a certain position during the expansion and contraction process, referring to fig. 6, in this embodiment, a protruding structure 7 is provided on the wall surface of the moving tube 22, and the protruding structure 7 abuts against the wall surface of the fixed tube 21 to keep the moving tube 22 stable when the heat exchange coil 1 stops moving. The protruding structure 7 abuts against the outer wall of the fixed tube 21 (when the movable tube 22 is an outer tube, the protruding structure 7 abuts against the inner wall of the fixed tube 21), and the movable tube 22 can be kept stable when the heat exchange coil 1 stops moving.

As an optional embodiment, the protruding structures 7 are arranged at intervals along the axial direction of the moving pipe 22, and the protruding structures 7 can be driven by the heat exchange coil 1 to pass through the second limiting portion 5 and move along with the heat exchange coil 1.

When the protruding structure 7 abuts against the wall surface of the fixed tube 21 and can bear the weight of the heat exchange coil 1, the protruding structure 7 can abut against the wall surface of the fixed tube 21 to keep the movable tube 22 in a stable state.

Even if the protruding structure 7 abuts against the wall surface of the fixed pipe 21 and cannot bear the weight of the heat exchange coil 1, the protruding structure 7 can abut against the second limiting part 5 and limit the movement of the movable pipe 22 when the heat exchange coil 1 stops moving, so that the movable pipe 22 is kept in a stable state.

Referring to fig. 5 and 6, when the heat exchange coil 1 moves upwards or downwards, the moving pipe 22 is pulled or pushed to pass through the second limiting part 5; when the heat exchange coil 1 stops moving, the pulling force or pushing force applied to the movable tube 22 disappears, and in this embodiment, the protruding structure 7 abuts against the upper surface of the second limiting portion 5, so that the movable tube 22 can be further fixed.

Set up protruding structure 7 more than two on removing pipe 22, protruding structure 7 can pass through spacing portion 5 of second under heat exchange coil 1's pulling and promotion, and different protruding structure 7 homoenergetic can cooperate with spacing portion 5 of second to support and lean on the inner wall of fixed pipe 21, make inlet line 2 and outlet line 3 homoenergetic remain stable under a plurality of position states.

When the projection structure 7 at the lowest part abuts against the upper surface of the second limiting part 5, the inlet pipeline 2 is in the maximum extension state.

In order to enable the protrusion structure 7 to pass through the second limiting portion 5 under the pulling or pushing action of the heat exchange coil 1, as an alternative embodiment, the protrusion structure 7 is arranged in a telescopic manner along the radial direction of the moving pipe 22.

When the protruding structure 7 passes through the second limiting part 5, the protruding structure 7 contracts along the radial direction of the moving pipe 22, so that the protruding structure 7 can be extruded with the second limiting part 5 and move to the upper part of the second limiting part 5; referring to fig. 5, after the protrusion structure 7 passes through the second position-limiting portion 5, the protrusion structure 7 extends along the radial direction of the moving tube 22 to abut against the upper surface of the second position-limiting portion 5.

In the present embodiment, a specific implementation of the protruding structure 7 is provided, and as shown in fig. 7, a groove 221 is provided on a wall surface of the moving tube 22, and the protruding structure 7 includes a protrusion 71 and an elastic member 72, wherein: the elastic member 72 can be selected from compression elasticity, the groove 221 is arranged along the radial direction of the moving pipe 22, the elastic member 72 is positioned in the groove 221 and arranged along the radial direction of the moving pipe 22, the fixed end of the elastic member 72 is fixed with the groove 221, the free end of the elastic member 72 is fixedly connected with the lug 71, and the lug 71 can be pressed into the groove 221 when being extruded with the second limiting part 5 and is pushed to be protruded out of the wall surface of the moving pipe 22 by the elastic member 72 after being separated from the second limiting part 5.

In the protrusion structure 7 of the present embodiment, when the protrusion 71 does not pass through the second limiting portion 5, the protrusion 71 is exposed to the outer wall of the moving tube 22 for limiting under the action of the elastic member 72, and when the protrusion 71 passes through the second limiting portion 5, the protrusion 71 is pressed into the groove 221 by the second limiting portion 5, so that the moving tube 22 can pass through the second limiting portion 5.

This embodiment also provides a specific implementation manner of the supporting driving assembly, the water outlet is disposed at the top of the water tank 4, the supporting driving assembly includes a driving device, a screw 83 and a guide rail 84, wherein: the driving device can be a motor 81, and the motor 81 is subjected to waterproof treatment and can be arranged in the end socket of the water tank 4; an output shaft of the motor 81 is in transmission connection with the screw rod 83, as shown in fig. 8, the output shaft of the motor 81 is in meshing transmission with the end portion of the screw rod 83 through a bevel gear, a sliding block 82 is fixed on the heat exchange coil 1, the sliding block 82 is in threaded connection with the screw rod 83, a guide rail 84 is in sliding connection with the sliding block 82 and used for limiting the sliding block 82 to rotate, and the heat exchange coil 1 can be driven to move up and down when the driving device rotates forwards and backwards.

The matching structure of the sliding block 82 and the guide rail 84 has a certain supporting function on the heat exchange coil 1. The slider 82 is provided with an internal threaded hole for the screw rod 83 to pass through, and the internal threaded hole is in threaded connection with the screw rod 83; when the motor 81 rotates, the screw rod 83 is driven to rotate, and because the screw rod 83 is in threaded connection with the sliding block 82, and meanwhile, the sliding block 82 extends into the guide rail 84, the guide rail 84 limits the rotation of the sliding block 82, therefore, the sliding block 82 can reciprocate up and down along the screw rod 83, and simultaneously drives the heat exchange coil 1 to move up and down.

When the water outlet is arranged at the side part of the water tank 4, the structure of the supporting and driving assembly is unchanged, the screw rod 83 is arranged along the horizontal direction, and the driving device can drive the slide block 82 to move along the left-right direction.

Example two

Referring to fig. 1-4, the present embodiment provides a hot water tank including a water tank 4 and the above-described heat exchange coil assembly. This hot-water tank has above-mentioned heat exchange coil assembly, can satisfy the user and promptly acquire hydrothermal demand under the prerequisite that does not change 4 volumes of water tank and installation space, and can shorten the time of acquireing hydrothermal.

EXAMPLE III

The embodiment provides a water heater, including above-mentioned hot-water tank. This hot-water tank has above-mentioned hot-water tank, can satisfy the user and promptly acquire hydrothermal demand under the prerequisite that does not change 4 volumes of water tank and installation space, and can shorten the time of acquireing hydrothermal.

Example four

The embodiment provides a control method of a heat exchange coil assembly, wherein by using the heat exchange coil assembly in the first embodiment, when a water tank 4 emergently produces hot water, a heat exchange coil 1 is moved to a water outlet position of the water tank 4 and stays for heating; when the water tank 4 normally produces hot water, the heat exchange coil 1 is positioned on one side of the water tank 4 opposite to the water outlet, or the heat exchange coil 1 swings back and forth in the water tank 4.

When the water outlet is positioned at the top of the water tank 4 and the water tank 4 does not need to emergently produce hot water, the heat exchange coil 1 is stopped at the bottom in the water tank 4, so that the water in the whole water tank 4 is heated by the heat exchange coil 1 and then flows out from the water outlet at the top; when water tank 4 needs promptly to prepare hot water, support drive assembly and make heat exchange coil 1 rebound, guarantee that heat exchange coil 1 can remove to the delivery port position department at 4 tops of water tank, the user can obtain the water of the delivery port position department of at first heating, satisfies the urgent demand of getting hot water of user.

When the water tank 4 normally produces hot water, the heat exchange coil 1 is positioned at the bottom of the water tank 4, and water in the whole water tank 4 is heated and then flows out from a water outlet at the top; or the heat exchange coil 1 swings back and forth in the water tank 4, so that water in the water tank 4 can be stirred, the heat exchange efficiency of the water in the heat exchange coil 1 and the water in the water tank 4 is improved, and the heating time is shortened.

As an alternative embodiment, the water tank 4, when normally producing hot water, proceeds according to the following steps:

s1: detecting the average temperature T1 of the middle part of the water tank 4 and the actual power P2 of the water tank 4; setting the target temperature as T0 and the rated hot water time as T0;

s2: calculating a target power P1 of the water tank 4, wherein P1 is Cn rho (T0-T1)/T0, wherein C is the specific heat capacity of water, rho is the density of water, and n is the capacity of the water tank 4;

s3: comparing the target power P1 of the water tank 4 with the actual power P2 of the water tank 4;

when P1 is not more than P2, V is 0, so that the heat exchange coil 1 is positioned on the side, opposite to the water outlet, in the water tank 4; when the water outlet is positioned at the top of the water tank 4, the heat exchange coil 1 is positioned at the bottom of the water tank 4; when the water outlet is positioned at the bottom of the water tank 4, the heat exchange coil 1 is positioned at the top of the water tank 4; when the water outlet is positioned at the side part of the water tank 4, the heat exchange coil 1 is positioned at the side part opposite to the water outlet in the water tank 4;

when P1 is greater than P2, V is not equal to 0, so that the heat exchange coil 1 swings back and forth in the water tank 4, and the movement speed of the heat exchange coil 1 isMix the water in the water tank 4, improve the heat exchange efficiency of heat exchange coil 1 and water in the water tank 4, shorten the heating time.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.