阅读说明：本技术 一种用于提高分液均匀性的分液器 (Liquid separator for improving liquid separation uniformity ) 是由 耿佃桥 郝奇 于 2019-10-14 设计创作，主要内容包括：一种用于提高分液均匀性的分液器,包括分液器进口弯管、分液器进口直管、分液器出口支管及超声振动机构；超声振动机构包括超声波发生器、换能器及振动杆；分液器进口弯管一端管口用于连接制冷系统的节流构件和进液管,分液器进口弯管另一端与分液器进口直管底端管口密封连接,分液器进口直管顶端管口与分液器出口支管下端管口密封连通,分液器出口支管上端管口用于连接制冷系统的蒸发器中各个支路；分液器进口弯管管壁上开设有振动杆穿装孔,振动杆一端杆体通过振动杆穿装孔伸入分液器进口直管内,一端留在分液器进口弯管外部,振动杆与振动杆穿装孔之间设有密封及角度调节构件；换能器固连在振动杆的外留端,换能器通过导线与超声波发生器相连。(A liquid separator for improving the uniformity of liquid separation comprises a liquid separator inlet bent pipe, a liquid separator inlet straight pipe, a liquid separator outlet branch pipe and an ultrasonic vibration mechanism; the ultrasonic vibration mechanism comprises an ultrasonic generator, a transducer and a vibrating rod; a pipe orifice at one end of the liquid distributor inlet elbow is used for connecting a throttling component and a liquid inlet pipe of the refrigeration system, the other end of the liquid distributor inlet elbow is hermetically connected with a pipe orifice at the bottom end of the liquid distributor inlet straight pipe, a pipe orifice at the top end of the liquid distributor inlet straight pipe is hermetically communicated with a pipe orifice at the lower end of the liquid distributor outlet branch pipe, and pipe orifices at the upper end of the liquid distributor outlet branch pipe are used for connecting each branch in an evaporator of the refrigeration; a vibrating rod penetrating hole is formed in the pipe wall of the liquid separator inlet bent pipe, a rod body at one end of the vibrating rod extends into the liquid separator inlet straight pipe through the vibrating rod penetrating hole, one end of the vibrating rod is left outside the liquid separator inlet bent pipe, and a sealing and angle adjusting component is arranged between the vibrating rod and the vibrating rod penetrating hole; the energy converter is fixedly connected with the outer end of the vibrating rod and is connected with the ultrasonic generator through a lead.)

1. The utility model provides a knockout for improving divide liquid homogeneity which characterized in that: comprises a liquid separator inlet bent pipe, a liquid separator inlet straight pipe, a liquid separator outlet branch pipe and an ultrasonic vibration mechanism; the ultrasonic vibration mechanism comprises an ultrasonic generator, an energy transducer and a vibration rod; a pipe orifice at one end of the liquid distributor inlet elbow is used for connecting a throttling component and a liquid inlet pipe of the refrigeration system, a pipe orifice at the bottom end of the liquid distributor inlet straight pipe is hermetically connected with a pipe orifice at the bottom end of the liquid distributor inlet straight pipe, a pipe orifice at the top end of the liquid distributor inlet straight pipe is hermetically communicated with a pipe orifice at the lower end of the liquid distributor outlet branch pipe, and pipe orifices at the upper end of the liquid distributor outlet branch pipe are used for connecting each branch in an; a vibrating rod penetrating hole is formed in the pipe wall of the liquid distributor inlet bent pipe, a rod body at one end of the vibrating rod extends into the liquid distributor inlet straight pipe through the vibrating rod penetrating hole, one end of the vibrating rod is left outside the liquid distributor inlet bent pipe, and a sealing and angle adjusting component is arranged between the vibrating rod and the vibrating rod penetrating hole; the energy converter is fixedly connected with the outer end of the vibrating rod and is connected with the ultrasonic generator through a lead.

2. The dispenser according to claim 1, wherein: the lengths of the liquid distributor inlet bent pipe and the liquid distributor inlet straight pipe are determined according to the space structure size of the refrigerating system.

3. The dispenser according to claim 1, wherein: the length and the inclination angle of the vibrating rod extending into the straight pipe of the inlet of the liquid separator are determined according to the crushing condition of the liquid-phase refrigerant.

4. The dispenser according to claim 1, wherein: the ultrasonic generator and the transducer are both of adjustable frequency types.

5. The dispenser according to claim 1, wherein: the ultrasonic generator is connected with alternating current, the output power is 0-3 kW, the frequency is 20-40 kHz, the output voltage is 200-300V, and the conversion efficiency is 0.8-0.9; the frequency of the transducer is 20 kHz-40 kHz.

Technical Field

The invention belongs to the technical field of refrigeration systems, and particularly relates to a liquid distributor for improving liquid distribution uniformity.

Background

The liquid separator is an important component in a refrigeration system and has the function of uniformly and equivalently distributing gas-liquid two-phase refrigerant to each branch of the evaporator so as to keep the evaporator with good heat exchange performance.

However, in actual conditions, the most common problem of the liquid distributor is that refrigerant distribution is uneven, because most of the existing liquid distributors are cone-type liquid distributors, the liquid distributors are greatly influenced by inclination angles during liquid distribution, the liquid distributors cannot guarantee an absolute vertical state in actual installation, and after liquid-phase refrigerants are gathered to form a liquid film, the liquid flows out along the outlet branch pipes in the inclination direction more easily, so that liquid distribution is uneven.

When liquid separation is uneven, refrigerant in some branches of the evaporator is distributed too much, so that incomplete evaporation of the refrigerant is caused, and the heat exchange performance is affected; and the refrigerant in other branches of the evaporator is distributed too little, which can lead the part of pipelines to enter into a superheat area in advance, thereby greatly reducing the heat exchange coefficient and making the heat exchange area not fully utilized.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a liquid separator for improving the uniformity of liquid separation, wherein an ultrasonic vibration mechanism is introduced into the liquid separator for the first time, the liquid-phase refrigerant can be effectively crushed into mist flow by utilizing the ultrasonic vibration mechanism, the gas-liquid two-phase refrigerant in the mist flow can be ensured to be relatively uniform, and the uniform distribution of the refrigerant can be realized as the mist flow refrigerant enters an outlet branch pipe.

In order to achieve the purpose, the invention adopts the following technical scheme: a liquid separator for improving the uniformity of liquid separation comprises a liquid separator inlet bent pipe, a liquid separator inlet straight pipe, a liquid separator outlet branch pipe and an ultrasonic vibration mechanism; the ultrasonic vibration mechanism comprises an ultrasonic generator, an energy transducer and a vibration rod; a pipe orifice at one end of the liquid distributor inlet elbow is used for connecting a throttling component and a liquid inlet pipe of the refrigeration system, a pipe orifice at the bottom end of the liquid distributor inlet straight pipe is hermetically connected with a pipe orifice at the bottom end of the liquid distributor inlet straight pipe, a pipe orifice at the top end of the liquid distributor inlet straight pipe is hermetically communicated with a pipe orifice at the lower end of the liquid distributor outlet branch pipe, and pipe orifices at the upper end of the liquid distributor outlet branch pipe are used for connecting each branch in an; a vibrating rod penetrating hole is formed in the pipe wall of the liquid distributor inlet bent pipe, a rod body at one end of the vibrating rod extends into the liquid distributor inlet straight pipe through the vibrating rod penetrating hole, one end of the vibrating rod is left outside the liquid distributor inlet bent pipe, and a sealing and angle adjusting component is arranged between the vibrating rod and the vibrating rod penetrating hole; the energy converter is fixedly connected with the outer end of the vibrating rod and is connected with the ultrasonic generator through a lead.

the lengths of the liquid distributor inlet bent pipe and the liquid distributor inlet straight pipe are determined according to the space structure size of the refrigerating system.

The length and the inclination angle of the vibrating rod extending into the straight pipe of the inlet of the liquid separator are determined according to the crushing condition of the liquid-phase refrigerant.

The ultrasonic generator and the transducer are both of adjustable frequency types.

The ultrasonic generator is connected with alternating current, the output power is 0-3 kW, the frequency is 20-40 kHz, the output voltage is 200-300V, and the conversion efficiency is 0.8-0.9; the frequency of the transducer is 20 kHz-40 kHz.

The invention has the beneficial effects that:

According to the liquid distributor for improving the liquid distribution uniformity, the ultrasonic vibration mechanism is introduced into the liquid distributor for the first time, the liquid-phase refrigerant can be effectively crushed into the mist flow by using the ultrasonic vibration mechanism, the gas-liquid two-phase refrigerant in the mist flow can be ensured to be relatively uniform, and the uniform distribution of the refrigerant is realized as the mist flow refrigerant enters the outlet branch pipe.

The invention can adaptively adjust the inclination angle, the rod body diameter and the rod body length of the vibrating rod extending into the liquid separator pipeline according to actual requirements so as to realize the optimal crushing effect on the liquid-phase refrigerant and further ensure the uniformity of liquid separation.

The frequency and the power of the ultrasonic generator can be adjusted according to actual requirements, so that the liquid distributor can adapt to more working conditions, and the application range of the liquid distributor is wider.

Drawings

FIG. 1 is a schematic diagram of a dispenser for improving uniformity of dispensing in accordance with the present invention;

In the figure, 1-a liquid distributor inlet bent pipe, 2-a liquid distributor inlet straight pipe, 3-a liquid distributor outlet branch pipe, 4-an ultrasonic generator, 5-a transducer, 6-a vibrating rod, 7-a vibrating rod penetrating hole and 8-a sealing and angle adjusting component.

Detailed Description

the invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1, a liquid separator for improving the uniformity of liquid separation comprises a liquid separator inlet elbow 1, a liquid separator inlet straight pipe 2, a liquid separator outlet branch pipe 3 and an ultrasonic vibration mechanism; the ultrasonic vibration mechanism comprises an ultrasonic generator 4, a transducer 5 and a vibrating rod 6; a pipe orifice at one end of the liquid distributor inlet elbow 1 is used for connecting a throttling component and a liquid inlet pipe of a refrigeration system, the other end of the liquid distributor inlet elbow 1 is hermetically connected with a pipe orifice at the bottom end of the liquid distributor inlet straight pipe 2, a pipe orifice at the top end of the liquid distributor inlet straight pipe 2 is hermetically communicated with a pipe orifice at the lower end of the liquid distributor outlet branch pipe 3, and a pipe orifice at the upper end of the liquid distributor outlet branch pipe 3 is used for connecting each branch in an evaporator of the refrigeration; a vibrating rod penetrating hole 7 is formed in the pipe wall of the liquid distributor inlet bent pipe 1, a rod body at one end of the vibrating rod 6 extends into the liquid distributor inlet straight pipe 2 through the vibrating rod penetrating hole 7, one end of the vibrating rod 6 is left outside the liquid distributor inlet bent pipe 1, and a sealing and angle adjusting component 8 is arranged between the vibrating rod 6 and the vibrating rod penetrating hole 7; the transducer 5 is fixedly connected with the outer end of the vibrating rod 6, and the transducer 5 is connected with the ultrasonic generator 4 through a lead.

The lengths of the liquid distributor inlet bent pipe 1 and the liquid distributor inlet straight pipe 2 are determined according to the space structure size of the refrigerating system.

The length and the inclination angle of the vibrating rod 6 extending into the inlet straight pipe 2 of the liquid distributor are determined according to the crushing condition of the liquid-phase refrigerant.

The ultrasonic generator 4 and the transducer 5 are both of adjustable frequency types.

The ultrasonic generator 4 is connected with alternating current, the output power is 0-3 kW, the frequency is 20 kHz-40 kHz, the output voltage is 200V-300V, and the conversion efficiency is 0.8-0.9; the frequency of the transducer 5 is 20 kHz-40 kHz.

The one-time use process of the present invention is described below with reference to the accompanying drawings:

In a refrigeration system, gas-phase two-phase refrigerant flowing out of a throttling component directly flows into a liquid distributor inlet bent pipe 1 from a liquid inlet pipe, then enters a liquid distributor inlet straight pipe 2, an ultrasonic vibration mechanism is started, alternating current is converted into an electric signal through an ultrasonic generator 4, then ultrasonic frequency electric oscillation is converted into mechanical vibration through a transducer 5, finally ultrasonic vibration with given frequency is transmitted into the gas-phase two-phase refrigerant through a vibration rod 6, as the frequency of the ultrasonic wave is more than 20kHz and the wavelength of the ultrasonic wave is small, after the vibration rod 6 is contacted with a refrigerant liquid film, the ultrasonic wave has a large curvature radius when being transmitted on the liquid surface, and when the curvature radius is large, the surface tension becomes the force which is the largest in all forces vertical to the liquid surface, so that surface tension waves are formed, and when the amplitude of the tension waves is large enough, micro fog drops can be generated on the liquid surface, therefore, after the vibrating rod 6 starts to vibrate, the refrigerant liquid film is broken into tiny fog drops, the refrigerant flow pattern in the inlet straight pipe 2 of the liquid distributor is changed into fog flow, the gas-liquid two-phase refrigerant in the fog flow can be ensured to be relatively uniform, and the refrigerant is uniformly distributed as the fog flow refrigerant enters the outlet branch pipe. The uniformly distributed refrigerant enters each branch of the evaporator, and finally the evaporator can exert the maximum heat exchange capacity.