阅读说明：本技术 一种离心增压式螺旋油泵、压缩机及换热设备 (Centrifugal booster-type spiral oil pump, compressor and heat exchange equipment ) 是由 孙备 于海鹏 马琳 范兵 于 2020-07-16 设计创作，主要内容包括：本公开提出了一种离心增压式螺旋油泵、压缩机及换热设备,能够提高压缩机油泵在低转速高油温低粘度情况下的泵油量。螺旋油泵包括吸油管和设置在吸油管内的吸油管芯,所述吸油管芯表面沿轴线方向从下至上设置有螺旋凹槽,吸油管底部设置进油口,所述进油口周圈设置有不遮挡进油口的分离式叶片,分离式叶片与吸油管的内壁固定连接,所述吸油管与吸油管芯可相对转动实现泵油。分离式叶片在吸油管转动时同时转动对进入的油进行搅动产生强离心力,同时设置为分离式叶片,可以避免叶片的对进油口的阻挡,提高进油量,从而进一步的提高了泵油能力,提高了压缩机泵油系统在低转速高温情况下的泵油能力,更加适用于变频压缩机。(The utility model provides a centrifugal booster-type spiral oil pump, compressor and indirect heating equipment can improve the pump oil mass of compressor oil pump under the high oil temperature low viscosity condition of low rotational speed. The spiral oil pump comprises an oil suction pipe and an oil suction pipe core arranged in the oil suction pipe, wherein a spiral groove is formed in the surface of the oil suction pipe core along the axis direction from bottom to top, an oil inlet is formed in the bottom of the oil suction pipe, separating blades which do not shield the oil inlet are arranged on the periphery of the oil inlet, the separating blades are fixedly connected with the inner wall of the oil suction pipe, and the oil suction pipe core can rotate relatively to realize oil pumping. The separating type blades rotate simultaneously when the oil suction pipe rotates to stir entering oil to generate strong centrifugal force, and meanwhile, the separating type blades are arranged, so that the blocking of the blades to an oil inlet can be avoided, the oil inlet amount is increased, the oil pumping capacity of the compressor oil pumping system under the conditions of low rotating speed and high temperature is further improved, and the separating type blades are more suitable for a variable frequency compressor.)

1. A centrifugal booster-type spiral oil pump is characterized in that: including inhaling oil pipe and setting up the oil absorption tube core in inhaling oil pipe, the supreme spiral recess that is provided with is followed down on oil absorption tube core surface along the axis direction, inhales oil pipe bottom and sets up the oil inlet, the oil inlet border is provided with the disconnect-type blade that does not shelter from the oil inlet, disconnect-type blade and the inner wall fixed connection who inhales oil pipe, but inhale oil pipe and inhale oil pipe core relative rotation and realize the pump oil.

2. A centrifugally-supercharged helical oil pump as defined in claim 1, wherein: the disconnect-type blade contains to be two or two above blades, and each blade is the equidistant separation setting.

3. A centrifugally-supercharged helical oil pump as set forth in claim 2, characterized in that: the number of the separated blades is even, and the separated blades are arranged in a centrosymmetric manner by using the oil inlet; or the separated blades are arranged to be odd blades, and the positions of the blades are equally divided into the circumferential radian of the oil inlet.

4. A centrifugally-supercharged helical oil pump as defined in claim 1, wherein: each of the divided blades has a shape of a plane or a curved surface.

5. A centrifugally pressurized screw oil pump as set forth in claim 4, characterized in that: the blades are arranged into sectors, the arc edges of the sectors are attached to the inner wall of the bottom of the oil suction pipe, and the thickness of the blades is set according to the size of the oil suction pipe.

6. A centrifugally-supercharged helical oil pump as defined in claim 1, wherein: the oil suction pipe is characterized by further comprising a suspension spring, wherein a connecting part is arranged on the suspension spring and is used for extending into the oil inlet and being fixedly connected with an oil suction pipe core arranged in the oil suction pipe, and the suspension spring is used for hanging the spiral oil pump.

7. A centrifugally-supercharged helical oil pump as defined in claim 1, wherein: the diameter of the part of the connecting part on the suspension spring, which extends into the oil inlet, is not more than 30 percent of the diameter of the oil inlet.

8. A compressor, characterized by: the centrifugal booster type spiral oil pump is adopted in the compressor in embodiment 1, the oil suction pipe is fixedly connected with a crankshaft of the compressor, and the suspension spring is fixed on a fixed part of the compressor.

9. A compressor as set forth in claim 8, wherein: the suspension spring is hung on a motor stator framework of the compressor, the suspension spring is C-shaped, and the tail end of the suspension spring is provided with a hook.

10. A heat exchange device comprises a compressor and is characterized in that: a compressor as claimed in claim 8 or 9.

Technical Field

The utility model relates to a frequency conversion compression technology correlation technique field, specific saying so relates to a centrifugal booster-type spiral oil pump, compressor and indirect heating equipment.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The heat exchange equipment generally drives a refrigerant to flow through a compressor to exchange heat, and a crankshaft oil circuit structure of the compressor generally comprises an inertial pump, a viscous pump, a separation pump and oil holes. The compressor drives the crankshaft to rotate, the inertial pump serves as an oil pumping device in the first stage to drive lubricating oil to flow to the viscous pump from bottom to top under the action of the rotating motion of the crankshaft, the viscous pump serves as an oil pumping device in the second stage to continuously convey the lubricating oil upwards, the lubricating oil reaches the separation pump to drive fluid, and the lubricating oil is distributed to different mechanisms for lubrication. The lubricating oil plays an important role in the operation of equipment, and the abrasion and the noise of each internal part are directly influenced by the amount of the oil pumped.

The inventor finds that the two existing oil pump structures have limitations.

The structure of centrifugal oil pump is pump oil height under the certain condition of oil pump diameter is restricted by the rotational speed, and its oil pump diameter is general fixed to present refrigerator refrigeration compressor, therefore centrifugal oil pump generally is applied to the fixed frequency compressor of rotational speed fixed, hardly realizes low rotational speed pump oil to the variable frequency compressor that the rotational speed range changes greatly.

The oil pumping height of the spiral oil pump is less influenced by the rotating speed, and the spiral oil pump is widely applied to the variable frequency compressor. However, the oil pumping amount of the conventional spiral oil pump is greatly influenced by the viscosity of lubricating oil, the oil pumping amount is small under the conditions of high oil temperature and low viscosity, and the oil pumping amount of the spiral oil pump is small under the condition of high temperature of a working environment, so that the lubrication and cooling of a bearing system are not facilitated, and finally, the compressor is failed and blocked.

Disclosure of Invention

The centrifugal supercharging type spiral oil pump, the compressor and the heat exchange equipment can improve the oil pumping amount of the compressor oil pump under the conditions of low rotating speed, high oil temperature and low viscosity.

In order to achieve the purpose, the following technical scheme is adopted in the disclosure:

one or more embodiments provide a centrifugal booster-type spiral oil pump, including inhaling oil pipe and the oil absorption tube core of setting in inhaling oil pipe, the oil absorption tube core surface is provided with the spiral recess from the supreme down along the axis direction, inhales oil pipe bottom and sets up the oil inlet, oil inlet circumference is provided with the disconnect-type blade that does not shelter from the oil inlet, disconnect-type blade and the inner wall fixed connection of inhaling oil pipe, inhale oil pipe and the relative rotation of oil absorption tube core and realize the pump oil.

One or more embodiments provide a compressor, which employs a centrifugal pressurization type screw oil pump as described above, wherein the oil suction pipe is fixedly connected with a crankshaft of the compressor, and the suspension spring is fixed on a stationary part of the compressor.

One or more embodiments provide a heat exchange device, the heat exchange device including a compressor, characterized in that: adopt a compressor of above-mentioned.

Compared with the prior art, the beneficial effect of this disclosure is:

(1) the bottom of the spiral oil pump is provided with the separating type blades, the blades can rotate simultaneously when the oil suction pipe rotates to stir oil entering an oil inlet to generate strong centrifugal force, the inlet pressure of the spiral oil suction pipe is improved, the oil pumping capacity is improved, the separating type blades are arranged simultaneously, the blocking of the blades to the oil inlet can be avoided, the bottom oil inlet is avoided by adopting the interval in the middle of the separating type blades, the influence of the blades on the flow area of a small hole is avoided, the oil inlet capacity is improved, and the oil pumping capacity is further improved.

(2) By adopting the compressor of the spiral oil pump, the separating type blades can stir oil to rotate to generate a centrifugal pressure head when an engine crankshaft of the compressor rotates, so that the inlet pressure is increased for the spiral oil pump, the oil pumping capacity of the spiral oil pump under the conditions of low viscosity and low rotating speed is improved, the oil pumping of the oil pump at low rotating speed and low viscosity is realized, the oil pumping capacity of an oil pumping system under the conditions of low rotating speed and high temperature is improved, and the compressor is more suitable for a variable frequency compressor.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.

Fig. 1 is a schematic structural view of a spiral oil pump according to embodiment 1 of the present disclosure;

fig. 2 is a sectional structural view of a spiral oil pump according to embodiment 1 of the present disclosure;

fig. 3 is a perspective view of the arrangement of a separate vane in the oil suction pipe of embodiment 1 of the present disclosure;

FIG. 4 is a cross-sectional view of the oil suction pipe with separate vanes in the oil suction pipe in accordance with embodiment 1 of the present disclosure;

fig. 5 is a schematic view of a compressor structure according to embodiment 2 of the present disclosure.

The specific implementation mode is as follows:

the present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.