Flow distribution structure of refrigerant pumping device

Abstract

The utility model relates to the technical field of refrigerant transportation, in particular to a flow distribution structure and rotating mechanism of a refrigerant pumping device, which comprises a rotor and a stator part arranged below the rotor, the flow distribution mechanism comprises a flow distribution disc arranged above the rotor, a rotating part arranged in the flow distribution disc, a foam breaking net, a flow guide part and a communicating part; according to the flow distribution structure of the refrigerant pumping device, the rotor rotates in the stator, so that the rotating rod drives the spiral blades to rotate, liquid and gas of refrigerants are preliminarily separated, through the arrangement of the foam breaking net, the liquid and the gas in the refrigerants are separated, and the liquid and the gas in the refrigerants are separated. Tiny liquid drops carried by the gas collide with the demister net, and the liquid drops are gathered and fall back to the bottom, so that more thorough gas-liquid separation is realized; due to the fact that the flow guide grooves are opposite to the rotation direction of the spiral blades, the refrigerant is strongly collided, and gas is further separated.

Description

Technical Field

[0001] This application relates to the technical field of refrigerant transportation, and more particularly to a distribution structure for a refrigerant pumping device. Background Technology

[0002] In existing heat pipe systems, liquid refrigerant is transported in various ways. One common method is to use a conventional liquid pump to drive the flow of liquid refrigerant; in addition, some systems do not use a liquid pump, but rely solely on the height difference to achieve liquid refrigerant circulation. However, without a liquid pump, the flow of refrigerant often fails to reach an ideal state, which can adversely affect the system's heat exchange efficiency. While using a conventional liquid pump can drive the flow of refrigerant, it has many drawbacks, including higher costs and relatively lower operating efficiency.

[0003] Given the shortcomings of conventional liquid pumps in heat pipe systems, refrigerant pumping devices have gradually emerged in the refrigeration field. The core function of this device is to apply pressure to refrigerant in its liquid state to ensure efficient circulation and delivery of the refrigerant.

[0004] However, existing refrigerant pumping devices suffer significant losses during refrigerant transport, indicating room for improvement. Furthermore, when the pump inlet pressure is too low, falling below the refrigerant's saturation pressure at the corresponding temperature, the refrigerant vaporizes, forming bubbles. These bubbles, as they flow with the refrigerant to the pump's high-pressure zone, rapidly burst, generating high-frequency impacts and localized high pressure. These repeatedly act on the surfaces of pump components such as the impeller, leading to material fatigue and cavitation. Cavitation not only damages pump components and shortens the pump's lifespan but also degrades pump performance, causing vibration and noise. Utility Model Content

[0005] This application is made in view of the problem that the existing refrigerant pumping devices fail to eliminate air bubbles.

[0006] Therefore, the purpose of this utility model is to provide a distribution structure for a refrigerant pumping device, which aims to reduce the air bubbles generated during refrigerant pumping and to protect the device.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including,

[0008] A rotating mechanism, including a rotor and a stator disposed below the rotor;

[0009] The flow distribution mechanism includes a flow distribution plate disposed above the rotor, a rotating part rotatably disposed within the flow distribution plate, a defoaming screen fixedly disposed within the flow distribution plate, a flow guiding part disposed within the flow distribution plate, and a connecting part disposed on the flow distribution plate;

[0010] The rotor drives the rotating part to perform gas-liquid separation, the defoaming screen blocks tiny droplets, and the spiral direction of the guide part is opposite to the rotation direction of the rotating part.

[0011] As a preferred embodiment of the distribution structure of the refrigerant pumping device of this utility model, the rotating part includes a rotating rod disposed in the distribution plate and driven by the rotating shaft of the rotor, and a spiral blade disposed in the distribution plate and fixed and coaxially connected to the rotating rod.

[0012] In a preferred embodiment of the distribution structure of the refrigerant pumping device of this utility model, the defoaming screen is fixedly disposed inside the distribution plate and disposed above the spiral blades.

[0013] As a preferred embodiment of the flow distribution structure of the refrigerant pumping device of this utility model, the flow guiding part includes a flow guiding plate fixedly disposed below the flow distribution plate, a flow guiding groove disposed in the flow guiding plate, and the flow distribution plate communicating with the stator part through the flow guiding groove.

[0014] As a preferred embodiment of the flow distribution structure of the refrigerant pumping device of this utility model, the flow guide groove is spiral-shaped, and the thread direction of the flow guide groove is opposite to the rotation direction of the spiral blade.

[0015] As a preferred embodiment of the distribution structure of the refrigerant pumping device of this utility model, the connecting part includes an injection port disposed on the upper wall of the distribution plate and communicating with the interior of the distribution plate, and an exhaust port disposed on the upper wall of the distribution plate and communicating with the interior of the distribution plate.

[0016] As a preferred embodiment of the distribution structure of the refrigerant pumping device of this utility model, the supporting mechanism further includes a pump head disposed above the distribution plate, and the pump head is connected to the interior of the distribution plate through the injection port.

[0017] In a preferred embodiment of the distribution structure of the refrigerant pumping device of this utility model, the stator includes a motor housing disposed below the rotor, and a stator disposed inside the motor housing, wherein the stator is configured to cooperate with the rotor.

[0018] The beneficial effects of this invention are as follows: The rotor rotates within the stator, causing the rotating rod to drive the helical blades. Due to the different densities of gas and liquid, the centrifugal forces they experience are also different, thus achieving initial gas-liquid separation of the refrigerant. Through the defoaming screen, as the gas rises, the small droplets it carries collide with the screen, causing them to coalesce into larger droplets that fall back to the bottom under gravity, achieving a more thorough separation of gas and liquid. Furthermore, the flow guide groove is positioned opposite to the rotation direction of the helical blades, resulting in strong collisions with the refrigerant, further separating the gas. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the refrigerant pumping device of this utility model.

[0021] Figure 2 This is a first-view internal structural diagram of the distribution structure of the refrigerant pumping device of this utility model.

[0022] Figure 3 This is a second-view internal structural diagram of the distribution structure of the refrigerant pumping device of this utility model.

[0023] Figure 4 This is a cross-sectional view of the internal structure of the flow distribution structure guide plate of the refrigerant pumping device of this utility model. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1, referring to 1-4, is the first embodiment of this utility model, providing a distribution structure for a refrigerant pump delivery device. This device includes...

[0029] The rotating mechanism 1 includes a rotor 12 and a stator 11 disposed below the rotor 12. The stator 11 includes a motor housing 111 disposed below the rotor 12 and a stator 112 disposed inside the motor housing 111. The stator 112 is configured to cooperate with the rotor 12. The rotor 12 rotates inside the stator 112.

[0030] The distribution mechanism 2 includes a distribution disk 21 disposed above the rotor 12, a rotating part 22 rotatably disposed within the distribution disk 21, the rotating part 22 including a rotating rod 221 disposed within the distribution disk 21 and driven by the rotating shaft of the rotor 12, and a spiral blade 222 disposed within the distribution disk 21 and fixed and coaxially connected to the rotating rod 221. When the gas-liquid mixture of refrigerant enters the distribution disk 21, it begins to rotate under the action of the spiral blade 222. Due to the different densities of the gas and liquid, the centrifugal forces they experience are also different. The liquid, with a larger mass, experiences a greater centrifugal force and is thrown towards the outer ring, while the gas, with a smaller mass, experiences a smaller centrifugal force and remains in the inner ring, thus achieving initial gas-liquid separation. The liquid thrown to the outer ring sinks to the bottom along the outer wall of the distribution disk 21 under the action of gravity, while the gas in the inner ring continues to flow upward and is discharged from the top outlet.

[0031] A defoaming screen 23 is fixedly installed inside the distribution plate 21, and the defoaming screen 23 is positioned above the spiral blades 222. During the ascent of the gas, a small number of tiny liquid droplets carried by the gas will collide with the defoaming screen 23. After the droplets aggregate into larger droplets, they fall back to the bottom under the action of gravity, achieving a more thorough separation of gas and liquid.

[0032] A flow guide section 24 is provided inside the distribution plate 21. The flow guide section 24 includes a flow guide plate 241 fixedly disposed below the distribution plate 21 and a flow guide groove 242 disposed within the flow guide plate 241. The distribution plate 21 is connected to the stator section 11 through the flow guide groove 242. The flow guide plate 241 is fixedly disposed to the stator section 11.

[0033] The guide channel 242 is spiral-shaped, and the thread direction of the guide channel 242 is opposite to the rotation direction of the spiral blade 222. When the refrigerant is guided by the spiral blade 222 into the guide channel 242, the design of the guide channel 242 changes the rotational transport direction of the refrigerant, causing the refrigerant to be subjected to strong collisions, further separating the gas.

[0034] The communication portion 25 is provided on the distribution plate 21. The communication portion 25 includes an injection port 251 provided on the upper wall of the distribution plate 21 and communicating with the interior of the distribution plate 21, and an exhaust port 252 provided on the upper wall of the distribution plate 21 and communicating with the interior of the distribution plate 21.

[0035] The supporting mechanism 1 also includes a pump head 13 disposed above the distribution plate 21, and the pump head 13 is connected to the inside of the distribution plate 21 through the injection port 251.

[0036] During use, as the rotor 12 rotates within the stator 112, the rotating rod 221 drives the spiral blade 222 to rotate. Due to the different densities of the gas and liquid, the centrifugal forces they experience are also different, thus performing preliminary separation of liquid and gas for the refrigerant.

[0037] With the setting of the defoaming net 23, the small amount of tiny liquid droplets carried by the gas will collide with the defoaming net 23 during the rising process. After the droplets gather into larger droplets, they fall back to the bottom under the action of gravity, achieving a more thorough separation of gas and liquid.

[0038] By setting the flow channel 242 and the spiral blade 222 in opposite directions of rotation, the refrigerant is subjected to strong collisions, further separating the gas.

[0039] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of the exemplary embodiments, not all features of the actual embodiments (i.e., those features not relevant to the currently considered best mode for carrying out this invention, or those features not relevant to implementing this invention) may be omitted.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A distribution structure for a refrigerant pumping device, characterized in that: The utility model relates to a kind of rotary mechanism (1), including rotor (12), stator part (11) being arranged below the rotor (12); Distribution mechanism (2), including distribution plate (21) being arranged above the rotor (12), rotary part (22) being arranged in the distribution plate (21), fixedly arranged in the distribution plate (21) broken mesh (23), flow guide part (24) being arranged in the distribution plate (21);Communication part (25) is arranged on the distribution plate (21); The rotor (12) drives the rotary part (22) to carry out gas-liquid separation, the broken mesh (23) blocks tiny droplet, and the spiral direction of the flow guide part (24) is opposite to the rotation direction of the rotary part (22). The rotary part (22) includes rotary rod (221) being arranged in the distribution plate (21) and being driven by the rotation axis of the rotor (12), and spiral blade (222) being arranged in the distribution plate (21) and being fixedly connected with the rotary rod (221) and coaxial connection.

2. The flow distribution structure of a refrigerant pump device according to claim 1, characterized in that: The broken mesh (23) is fixedly arranged in the distribution plate (21), and the broken mesh (23) is arranged above the spiral blade (222).

3. The flow distribution structure of a refrigerant pump device according to claim 2, characterized in that: The flow guide part (24) includes flow guide disc (241) being fixedly arranged below the distribution plate (21), flow guide groove (242) being arranged in the flow guide disc (241), and the distribution plate (21) is communicated with the stator part (11) by the flow guide groove (242).

4. The flow distribution structure of a refrigerant pump device according to claim 2, characterized in that: The flow guide groove (242) is spiral, and the thread direction of the flow guide groove (242) is opposite to the direction of the spiral blade (222) rotation.

5. The flow distribution structure of a refrigerant pump device according to claim 4, characterized in that: The communication part (25) includes injection port (251) being arranged on the upper wall of the distribution plate (21) and being communicated with the inside of the distribution plate (21), and exhaust port (252) being arranged on the upper wall of the distribution plate (21) and being communicated with the inside of the distribution plate (21).

6. The flow distribution structure of a refrigerant pump device according to claim 1, wherein: The rotary mechanism (1) further includes pump head (13) being arranged above the distribution plate (21), and the pump head (13) is communicated with the inside of the distribution plate (21) by the injection port (251).

7. The flow distribution structure of a refrigerant pump device according to claim 6, characterized in that: The stator part (11) includes motor box (111) being arranged below the rotor (12), stator (112) being arranged in the motor box (111), and the stator (112) is cooperatively arranged with the rotor (12).

8. The flow distribution structure of a refrigerant pump device according to any one of claims 1 to 7, characterized in that: ​

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