Fan coil assembly and refrigeration equipment

Abstract

The utility model discloses a fan coil assembly and refrigeration equipment, which comprises a heat exchange tube and a support, the heat exchange tube is rotatably supported on the support, a plurality of fins are arranged along the axial direction of the heat exchange tube, and the included angle between the fins and the heat exchange tube is an acute angle. Through the arrangement of the rotatable fan coil assembly and the specific finned tube structure, a product can have the air sweeping function without a special air sweeping mechanism, the air supply range of a single machine is widened, the arrangement cost is reduced, meanwhile, the more uniform heat exchange process is achieved, and the heat exchange efficiency of the heat exchanger is improved. The fin heat exchange area is larger under the same heat exchanger volume, the heat exchange process is more uniform, and the heat exchange efficiency is higher; the heat exchanger has air sweeping and self-cleaning functions; and the single-machine air supply range is enlarged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigeration, especially fan -coil assembly and refrigeration plant. BACKGROUND

[0002] Fan -coil, mainly be applied to hotel, station, venue etc. Large indoor space, compared to general household air conditioner, its characteristics lie in simple structure, appearance requirement is low, and only need to pass in water as heat exchange medium, but at the same time, this type of model also has the following problems:

[0003] ①Itself has no wind sweeping mechanism, needs to increase the installation quantity or add additional air port, air duct etc. Structure increases the air supply range, and the implementation cost is high, and the space occupation is more.

[0004] ②Uneven heat exchange, heat exchanger is only partially position by return air flow straight blow.

[0005] ③Water is easy to produce air bubble in pipeline, therefore flow path must be down in and up to avoid air bubble accumulation, lead to heat exchanger connection pipe when easy to connect reverse. INVENTION CONTENTS

[0006] In order to solve the problem that the existing fan -coil itself has no wind sweeping mechanism, the utility model provides fan -coil assembly, utilizes the setting of the included angle of fin and heat exchange pipe, so that the fan -coil has the wind sweeping function when rotating, and further provides refrigeration equipment.

[0007] The technical scheme adopted by the utility model is that a fan -coil assembly is designed, which comprises a heat exchange pipe and a support, the heat exchange pipe is rotatably supported on the support, a plurality of fins are arranged along the axial direction of the heat exchange pipe, and the included angle between the fin and the heat exchange pipe is an acute angle.

[0008] In some embodiments, the number of heat exchange pipes is multiple, the multiple heat exchange pipes form a cylindrical pipe bundle, and there is a ventilation spacing between adjacent heat exchange pipes.

[0009] In some embodiments, the end of the heat exchange pipe is provided with a rotary pipe joint for communication with the outside.

[0010] In some embodiments, a joint sleeve is fixed to the end of the heat exchange pipe, one end of the joint sleeve is provided with a fixed seat in communication with the end of the heat exchange pipe, and the other end is connected to the rotary pipe joint.

[0011] In some embodiments, the bent pipe is located in the joint sleeve.

[0012] In some embodiments, the joint sleeve is provided with a convex rib in the circumferential direction.

[0013] In some embodiments, the rotary pipe joint and the end of the heat exchange pipe are communicated through a bent pipe.

[0014] In some embodiments, the bent pipe comprises two vertically connected pipe sections.

[0015] In some embodiments, a water receiving tray is provided below the heat exchange tube.

[0016] Refrigeration equipment, including the aforementioned fan coil unit assembly.

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

[0018] This invention, through the design of a rotatable fan coil unit and a specific finned tube structure, enables the product to have a sweeping function without a dedicated sweeping mechanism. This increases the air delivery range of a single unit, reduces installation costs, achieves a more uniform heat exchange process, and improves the heat exchanger's efficiency. For the same heat exchanger volume, the finned heat exchange area is larger, the heat exchange process is more uniform, and the heat exchange efficiency is higher; it also enables the heat exchanger to have sweeping and self-cleaning functions; and it increases the air delivery range of a single unit. Attached Figure Description

[0019] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings. To illustrate the details and facilitate understanding of its principles, the drawings are not necessarily to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Wherein:

[0020] Figure 1 This is a three-dimensional schematic diagram of the fan coil unit assembly in an embodiment.

[0021] Figure 2 This is a three-dimensional schematic diagram of the fan coil unit assembly from another angle in the embodiment.

[0022] Figure 3 This is a schematic diagram of the end side of the fan coil unit assembly in an embodiment.

[0023] Figure 4 This is a schematic diagram of the fan coil unit assembly after removing the water tray and bracket.

[0024] Figure 5 This is a schematic diagram of the sleeve.

[0025] Figure 6 This is a schematic diagram of the segment from another angle.

[0026] Figure 7 This is a schematic diagram of the four states of the fan coil unit's rotation process.

[0027] In the diagram, 1 is the heat exchange tube; 2 is the fin; 3 is the rotary tube joint; 4 is the sleeve; 5 is the fixed base; 6 is the bent tube; 7 is the water receiving tray; 8 is the bracket; and 41 is the connecting rib. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present application, and the technical solutions of the present application are further described in combination with the drawings, but the present application is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, all combinations of the features described in the embodiments are not necessarily required by the solutions of the utility model.

[0029] The principles and structures of the present application will be described in detail below in combination with the drawings and embodiments.

[0030] EMBODIMENT

[0031] The fan coil is an important terminal equipment in the central air conditioning system, and the concealed fan coil is a hidden air conditioning equipment, which is mainly used in the central air conditioning system and widely used in hotels, office buildings, residences and other commercial or public places. The traditional concealed fan coil needs to set up a special air sweeping mechanism; the traditional concealed fan coil has a small air supply range; the heat exchanger of the traditional concealed fan coil is only partially directly blown by the return air flow, and the heat exchange is uneven; the water of the heat exchanger of the traditional concealed fan coil must be supplied from the bottom and discharged from the top.

[0032] As shown in Figure 1 , 2 , 3, 4, the fan coil assembly comprises a heat exchange pipe 1 and a support 8, the heat exchange pipe 1 is rotatably supported on the support 8, a plurality of fins 2 are arranged along the axial direction of the heat exchange pipe 1, and the included angle between the fin 2 and the heat exchange pipe 1 is an acute angle, that is, the fin 2 is inclined to the heat exchange pipe 1 in one direction. The heat exchange pipe 1 of the fan coil is one of its core components, responsible for completing the heat transfer, and is a key factor determining the refrigeration and heating efficiency of the fan coil. The heat exchange pipe 1 is usually used in cooperation with the fin 2 to increase the heat exchange area and improve the heat exchange efficiency.

[0033] The fin 2 on the heat exchange pipe 1 is a key component of the heat exchange equipment, which is used to enhance the heat exchange effect. It increases the surface area of the heat exchange pipe 1 to promote the transfer of heat between the fluid in the pipe and the external air.

[0034] When the fan coil rotates, any surface thereof can be directly blown by the return air flow perpendicular to the rotation axis direction, and since the fin 2 is not fixed vertically to the heat exchange pipe 1, compared with the heat exchanger of the same volume with the fin 2 fixed vertically, the heat exchange area is increased due to the increased outer contour of the fin 2, and the heat exchange efficiency is higher, and at the same time, the air outlet direction is forced to change when the fan coil rotates to a certain angle, which causes the air pressure to further increase when the return air flow passes through, thereby facilitating the removal of dust on the surface of the fin 2 by air flow impact, and realizing a certain degree of self-cleaning function.

[0035] As shown in Figure 7As shown, the fan coil has four states in a single rotation cycle, and each two adjacent states are different by 90 degrees in the same rotation direction, and the rotation from the first state to the fourth state is a cycle. In the second and fourth states, the fin plane is parallel to the return air flow direction, and the air outlet direction is straight ahead; in the first state, the fin plane is inclined to the left relative to the return air flow direction, and the air outlet direction is left front; in the third state, the fin plane is inclined to the right relative to the return air flow direction, and the air outlet direction is right front. Through the above implementation process, the heat exchanger can have the air sweeping function without a special air sweeping mechanism, thereby increasing the air supply range of a single machine, reducing the dependence on air outlets, air ducts and other structures, and optimizing the layout cost.

[0036] The plurality of heat exchange pipes 1 form a cylindrical pipe bundle, and adjacent heat exchange pipes 1 have a ventilation spacing.

[0037] The cylindrical pipe bundle is beneficial to rotation around the central axis, thereby uniformly exchanging heat at each position, and the ventilation spacing facilitates air flow around each heat dissipation pipe to exchange heat.

[0038] The end of the heat exchange pipe 1 is provided with a rotating pipe joint 3 for communication with the outside. The rotating pipe joint 3 is a mechanical connecting device for transmitting fluid (such as water, oil, gas, etc.) between rotating parts and fixed parts. It can realize the free rotation of the pipeline under the premise of ensuring the sealing. The rotating pipe joint 3 allows liquid or gas to be transmitted without leakage during rotation or movement. The rotating pipe joint 3 prevents twisting and breaking, avoiding the twisting or damage of the connected pipeline due to rotation. The rotating pipe joint 3 reduces mechanical wear: reduces the friction between the rotating part and the pipeline, and improves the system life.

[0039] The rotating pipe joint 3 is used to connect the external pipeline and guide the water flow into or out of the heat exchange pipe 1, so that it can maintain normal flow at any angle of rotation.

[0040] As shown in Figure 4 , 5 , 6, the end of the heat exchange pipe 1 is fixed with a joint sleeve 4, one end of the joint sleeve 4 is provided with a fixed seat 5 in communication with the end of the heat exchange pipe 1, and the other end is connected with the rotating pipe joint 3.

[0041] The joint sleeve 4 corresponds to a joint assembly for fixing the end of the heat exchange pipe 1, so that all the heat exchange pipes 1 are in communication with the external pipeline through the rotating pipe joint 3.

[0042] The rotating pipe joint 3 and the end of the heat exchange pipe 1 are in communication through a bent pipe 6.

[0043] The bending pipe 6 is arranged to have a certain angle between the liquid inlet end and the liquid outlet end, so that the gas bubbles can flow along the floating direction when flowing into the heat exchange pipe 1 through the bending pipe 6 and flowing through the rotary pipe joint 3 from the heat exchange pipe 1, thereby avoiding the accumulation of gas bubbles caused by the reverse connection of the pipeline.

[0044] The bending pipe 6 includes two vertically connected pipe sections.

[0045] Therefore, when the bending pipe 6 rotates with the heat exchange pipe 1, the bending end of the bending pipe 6 changes periodically in the up-down direction, so that the gas bubbles are quickly discharged and the accumulation of gas bubbles is avoided. The accumulation of gas bubbles in the pipeline is a common problem in fluid conveying systems, especially in liquid conveying or mixed fluid scenarios. The presence of gas bubbles can cause unstable fluid flow, reduce equipment efficiency, and even cause vibration and noise.

[0046] The bending pipe 6 is located in the joint sleeve 4.

[0047] The joint sleeve 4 protects the bending pipe 6.

[0048] A water pan 7 is arranged below the heat exchange pipe 1. The water pan 7 is a component for collecting and discharging condensed water or liquid, commonly used in heating, ventilation and air conditioning equipment (such as fan coil, air conditioning unit) or other equipment, to prevent condensed water from dripping outside the equipment, affecting the surrounding environment or causing damage.

[0049] The water pan 7 has a certain length, and the length is not less than the distance between the two rotary pipe joints 3, which has the beneficial effect of preventing condensed water from leaking to the outside when it appears on any surface of the fan coil.

[0050] The joint sleeve 4 is supported by the support 8, and the support 8 is provided with a ventilation opening.

[0051] The fixing seat 5 fixes the heat exchange pipe 1 to the support 8, so that the heat exchange pipe 1 is supported by the support 8 to rotate.

[0052] The joint sleeve 4 is provided with a convex rib in the circumferential direction, which is a connecting rib 41 in this embodiment, so that the joint sleeve 4 can be driven to rotate by a driving mechanism such as a gear or a belt, and then the heat exchange pipe 1 and the fin 2 are driven to rotate, so that the driving mechanism is installed on the outside, which is convenient for after-sales maintenance. The joint sleeve 4 also has the functions of positioning, shock absorption, protection, sealing or compensation.

[0053] The refrigeration equipment includes the fan coil assembly. The same heat exchanger has a larger heat exchange area of the fin 2, a more uniform heat exchange process, and a higher heat exchange efficiency; the heat exchanger has the functions of air sweeping and self-cleaning; and the air supply range of the single machine is increased.

[0054] By setting the rotatable fan coil assembly and specific fin 2 tube structure, the product has the wind sweeping function without special wind sweeping mechanism, improves the single machine air supply range, reduces the layout cost, realizes more uniform heat exchange process and improves the heat exchanger heat exchange efficiency.

[0055] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0056] Although some terms are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application. The order of actions, steps, etc. in the devices and methods shown in the specification and drawings can be implemented in any order as long as there is no specific order limitation and the output of the previous processing is not used in the subsequent processing. The use of similar sequential terms (for example, "first", "then", "second", "again", "after that", etc.) for convenience of description does not mean that such order must be followed.

[0057] Those skilled in the art should understand that all directional references (for example, upward, downward, upward, up, downward, bottom, top, left, right, vertical, horizontal, etc.) are used descriptively to help the reader understand, and do not represent (for example, to position, orientation or use, etc.) limitations on the scope of the present application defined by the appended claims, only for the convenience of describing the present application and simplifying the description, without the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0059] Additionally, some vague terms (e.g., substantially, certain, generally, etc.) may refer to slight inaccuracies or minor deviations in conditions, quantities, values, or dimensions, some of which are within manufacturing tolerances or limits. It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components; unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

Claims

1. A fan-coil unit comprising heat exchange tubes, characterised in that, The heat exchange pipe is supported on a support, a plurality of fins are arranged along the axial direction of the heat exchange pipe, and the angle between the fins and the heat exchange pipe is an acute angle.

2. The fan coil unit of claim 1, wherein, The heat exchange pipe is in a plurality, and the plurality of heat exchange pipes form a cylindrical pipe bundle with a ventilation interval between adjacent heat exchange pipes.

3. The fan coil unit of claim 1, wherein A rotating pipe joint is arranged at the end of the heat exchange pipe for communication with the outside.

4. The fan coil unit of claim 3, wherein, A joint sleeve is fixed at the end of the heat exchange pipe, one end of the joint sleeve is provided with a fixed seat in communication with the end of the heat exchange pipe, and the other end is connected to the rotating pipe joint.

5. The fan coil unit of claim 4, wherein, The joint sleeve is provided with a convex rib in the circumferential direction.

6. The fan coil unit of claim 4, wherein, The rotating pipe joint is in communication with the end of the heat exchange pipe through a bent pipe.

7. The fan coil unit of claim 6, wherein The bent pipe includes two vertically connected pipe sections.

8. The fan coil unit of claim 6, wherein, The bent pipe is located in the joint sleeve.

9. The fan coil unit of claim 1, wherein, A water pan is arranged below the heat exchange pipe.

10. A refrigeration appliance characterised in that, The fan coil unit comprises the fan coil unit according to any one of claims 1 to 9.

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