Refrigerant distribution equipment of refrigeration equipment

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses refrigerant distribution equipment of refrigeration equipment, which comprises a liquid distributor, the liquid distributor comprises an expansion valve and a liquid distribution head, a liquid inlet is fixedly arranged on one side of the expansion valve, a liquid outlet is fixedly arranged on one side of the expansion valve far away from the liquid inlet, and the liquid distribution head is fixedly connected with the expansion valve. A throttling cylinder is fixedly arranged on one side of the expansion valve and located on one side of the liquid outlet, a throttling orifice plate is detachably arranged in the throttling cylinder, screw holes are formed in the upper end and the lower end of the throttling orifice plate, and fixing bolts are arranged at the positions, located at the corresponding screw holes, of the rear end of the throttling orifice plate in a threaded mode. According to the device, refrigerants can be evenly distributed in the multiple distribution pipes, the evaporator is evenly cooled, the situation that the evaporator is frosted, the refrigerating capacity is reduced, and the performance of a refrigerating system is affected is avoided, and therefore the stability and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerant distribution device for refrigeration equipment. Background Art

[0002] Refrigerant distribution equipment is a vital component of the refrigeration system, responsible for evenly distributing the refrigerant gas compressed by the compressor to each evaporator. The uniformity of this distribution directly affects the efficiency and effect of the refrigeration system. Refrigerant distribution equipment has many forms, such as liquid distributors, distribution pipes, etc. Their design and working principle have a direct impact on the performance of the entire refrigeration system.

[0003] After searching, it was found that the refrigerant distribution equipment of the existing refrigeration equipment distributes the refrigerant unevenly during the distribution process, which will cause too much refrigerant in some branches, causing the evaporator to frost, resulting in incomplete evaporation and liquid flowing out of the evaporator. Some refrigerant is too little and the heat transfer area of ​​the evaporator cannot be fully utilized, resulting in a decrease in refrigeration capacity and causing liquid to be inhaled, seriously affecting the performance and reliability of the refrigeration system.

[0004] Therefore, those skilled in the art provide a refrigerant distribution device for a refrigeration device to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a refrigerant distribution device for refrigeration equipment, which can evenly distribute the refrigerant in a plurality of distribution pipes, so that the evaporator is evenly cooled, avoiding frosting of the evaporator, which would reduce the refrigeration capacity and affect the performance of the refrigeration system, thereby improving the stability and practicality of the equipment.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A refrigerant distribution device for a refrigeration device, comprising a liquid distributor, the liquid distributor comprising an expansion valve and a liquid distributor head, one side of the expansion valve and located at the liquid outlet side is fixedly arranged on a throttling cylinder, and a throttling orifice plate is detachably arranged in the throttling cylinder;

[0008] Through the above technical scheme, the throttling orifice plate can cause a pressure drop when the refrigerant flows through, thereby increasing the flow rate and causing turbulence, so that the refrigerant gas and liquid are fully mixed and then flow quickly to each distribution pipe, thereby ensuring that the liquid distribution in each distribution pipe is relatively uniform. The throttling orifice plate is fixed in the throttling cylinder by fixing bolts, thereby preventing the throttling orifice plate from being flushed into the liquid distribution head when the refrigerant passes through, thereby affecting the function of the throttling orifice plate, thereby improving the stability of the equipment.

[0009] Furthermore, an inner cavity is provided inside the liquid separation head, and a pressure drop column is fixedly provided in the middle of the liquid separation head and located at the inner cavity;

[0010] Through the above technical solution, the pressure drop column can make the refrigerant slightly contract when it flows through the throttling cylinder and enters the liquid distribution head, and the speed increases and the pressure decreases. It reaches the maximum value when it reaches the narrowest point, and then slows down and expands the pressure. Like a nozzle, the refrigerant is sprayed into multiple distribution pipes, so that it can further achieve the effect of uniform distribution, thereby improving the practicality of the equipment.

[0011] Furthermore, a liquid inlet is fixedly provided on one side of the expansion valve, and a liquid outlet is fixedly provided on a side of the expansion valve away from the liquid inlet;

[0012] Through the above technical solution, the refrigerant can circulate within the evaporator through the liquid inlet and the liquid outlet.

[0013] Furthermore, screw holes are provided at both upper and lower ends of the throttle orifice plate, and fixing bolts are threadedly provided at the rear end of the throttle orifice plate and at the corresponding screw holes;

[0014] Through the above technical solution, fixing bolts are threadedly arranged through the rear end of the throttling orifice plate and located at the corresponding screw holes, so that the throttling orifice plate can be fixed in the throttling cylinder to prevent the throttling orifice plate from being flushed into the liquid separation head when the refrigerant passes through, thereby affecting the function of the throttling orifice plate.

[0015] Furthermore, the liquid dispensing head has a plurality of liquid outlet holes equidistantly formed inside the liquid dispensing head near its front end;

[0016] Through the above technical solution, a plurality of liquid outlet holes are evenly spaced through the inside of the liquid separation head near the front end thereof, so that the refrigerant is sprayed out of the liquid separation head.

[0017] Furthermore, a plurality of tube holes are equidistantly provided at the front end of the liquid dispensing head and at the corresponding liquid outlet holes;

[0018] Through the above technical solution, a plurality of pipe holes are evenly spaced through the front end of the liquid separation head and located at the corresponding liquid outlet holes, which can be used to connect the distribution pipe to connect it to the evaporator.

[0019] Furthermore, a plurality of distribution pipes are arranged inside the liquid dispensing head and in the corresponding pipe holes;

[0020] Through the above technical solution, a plurality of distribution pipes are arranged inside the liquid separation head and in the corresponding pipe holes, so that the refrigerant can enter the evaporator to complete the refrigeration process.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes a refrigerant distribution device for refrigeration equipment. The device can generate a pressure drop when the refrigerant flows through the throttling orifice plate, increase the flow rate, cause turbulence, and make the refrigerant gas and liquid fully mixed and then flow to each distribution pipe quickly, thereby ensuring that the distribution of each distribution pipe is relatively uniform. The throttling orifice plate is fixed in the throttling cylinder by fixing bolts, thereby preventing the throttling orifice plate from being rushed into the liquid distribution head when the refrigerant passes through, thereby affecting the function of the throttling orifice plate, thereby improving the stability of the device.

[0023] 2. The utility model proposes a refrigerant distribution device for refrigeration equipment. The device can make the refrigerant slightly contract when it flows through the throttling cylinder and enters the liquid distribution head through a pressure drop column, and the speed increases and the pressure decreases. It reaches the maximum value when it reaches the narrowest point, and then slows down and expands the pressure. Like a nozzle, the refrigerant is sprayed into multiple distribution pipes, so that it can further achieve the effect of uniform distribution, thereby improving the practicality of the device.

[0024] 3. The utility model proposes a refrigerant distribution device for refrigeration equipment, which can evenly distribute the refrigerant in multiple distribution pipes, so that the evaporator is evenly cooled, avoiding frosting of the evaporator, which reduces the refrigeration capacity and affects the performance of the refrigeration system, thereby improving the stability and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a refrigerant distribution device for a refrigeration device proposed by the utility model;

[0026] Figure 2 This is a rear view of a refrigerant distribution device for a refrigeration device proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a throttling orifice plate of a refrigerant distribution device of a refrigeration device proposed by the utility model;

[0028] Figure 4 A cross-sectional view of a liquid distributor of a refrigerant distribution device for a refrigeration device proposed by the utility model;

[0029] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Liquid distributor; 2. Expansion valve; 3. Liquid distributor head; 4. Liquid inlet; 5. Liquid outlet; 6. Throttle cylinder; 7. Throttle orifice plate; 8. Screw hole; 9. Fixing bolt; 10. Pressure drop column; 11. Inner cavity; 12. Pipe hole; 13. Distribution pipe; 14. Liquid outlet. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-5 The utility model provides an embodiment: a refrigerant distribution device for a refrigeration device, comprising a liquid separator 1, the liquid separator 1 comprising an expansion valve 2 and a liquid distributor head 3, one side of the expansion valve 2 and located at the side of the liquid outlet 5 is fixedly arranged on a throttling cylinder 6, a throttling orifice plate 7 is detachably arranged in the throttling cylinder 6, the throttling orifice plate 7 can cause a pressure drop when the refrigerant flows through, the flow rate is increased, turbulence is caused, the refrigerant gas and liquid are fully mixed and then flow to each distribution pipe 13 at a high speed, thereby ensuring that each distribution pipe 13 is relatively evenly distributed, the throttling orifice plate 7 is fixed in the throttling cylinder 6 by fixing bolts 9, thereby preventing the throttling orifice plate 7 from being flushed into the liquid distributor head 3 when the refrigerant passes through, thereby affecting the function of the throttling orifice plate 7, thereby improving the stability of the device.

[0034] An inner cavity 11 is provided inside the liquid-distributing head 3, and a pressure-drop column 10 is fixedly provided in the middle of the liquid-distributing head 3 and located at the inner cavity 11. By placing the pressure-drop column 10, the refrigerant will first shrink slightly when flowing through the throttling cylinder 6 and entering the liquid-distributing head 3, and the speed will increase and the pressure will decrease. The pressure will reach the maximum value when it reaches the narrowest point, and then the pressure will slow down and expand. Like a nozzle, the refrigerant will be sprayed into a plurality of distribution pipes 13, so that it can further achieve the effect of uniform distribution, thereby improving the practicability of the equipment.

[0035] A liquid inlet 4 is fixedly provided on one side of the expansion valve 2, and a liquid outlet 5 is fixedly provided on the side of the expansion valve 2 away from the liquid inlet 4. The refrigerant can circulate within the evaporator through the liquid inlet 4 and the liquid outlet 5.

[0036] Screw holes 8 are provided at both upper and lower ends of the throttling orifice plate 7, and fixing bolts 9 are threadedly arranged at the rear end of the throttling orifice plate 7 and at the corresponding screw holes 8. The throttling orifice plate 7 can be fixed in the throttling cylinder 6 through the fixing bolts 9 threadedly arranged at the rear end of the throttling orifice plate 7 and at the corresponding screw holes 8, so as to prevent the throttling orifice plate 7 from being flushed into the liquid separation head 3 when the refrigerant passes through, thereby affecting the function of the throttling orifice plate 7.

[0037] A plurality of liquid outlet holes 14 are evenly spaced apart inside the liquid separator head 3 near its front end, so that the refrigerant can be sprayed out of the liquid separator head 3 through the plurality of liquid outlet holes 14 evenly spaced apart inside the liquid separator head 3 near its front end.

[0038] A plurality of tube holes 12 are evenly spaced at the front end of the liquid separation head 3 and at the corresponding liquid outlet holes 14. A plurality of tube holes 12 are evenly spaced at the front end of the liquid separation head 3 and at the corresponding liquid outlet holes 14, which can be used to connect the distribution pipe 13 to connect it to the evaporator.

[0039] A plurality of distribution pipes 13 are arranged inside the liquid separation head 3 and in the corresponding tube holes 12. Through the plurality of distribution pipes 13 arranged inside the liquid separation head 3 and in the corresponding tube holes 12, the refrigerant can enter the evaporator to complete the refrigeration process.

[0040] Working principle: When the refrigerant distribution device of the refrigeration equipment is used, first fix the throttling orifice plate 7 in the throttling cylinder 6 by the fixing bolts 9, and then weld the throttling cylinder 6 to the liquid outlet 5, and then connect one end of the distribution pipe 13 to the pipe hole 12, and the other end to the evaporator, and then the refrigerant enters the expansion valve 2 from the liquid inlet 4. When passing through the throttling cylinder 6, due to the influence of the throttling orifice plate 7, the refrigerant flow rate increases, causing turbulence, so that the refrigerant gas and liquid are fully mixed and then flow to each distribution pipe 13 at a high speed, thereby ensuring that the liquid distribution of each distribution pipe 13 is relatively uniform, and then enters the liquid distribution head 3, and at the same time, it is affected by the pressure drop column 10, so that the refrigerant first contracts slightly, the speed increases, and the pressure decreases. It reaches the maximum value when it reaches the narrowest point, and then decelerates and expands the pressure. Like a nozzle, the refrigerant is sprayed into multiple distribution pipes 13, so that it can further achieve the effect of uniform distribution, thereby improving the stability and practicality of the equipment.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerant distribution device for a refrigeration device, comprising a liquid distributor (1), characterized in that: The liquid distributor (1) comprises an expansion valve (2) and a liquid distributor head (3); one side of the expansion valve (2) and located on the side of the liquid outlet (5) is fixedly arranged on a throttling cylinder (6); a throttling orifice plate (7) is detachably arranged in the throttling cylinder (6).

2. The refrigerant distribution device of a refrigeration device according to claim 1, characterized in that: An inner cavity (11) is provided inside the liquid separation head (3), and a pressure drop column (10) is fixedly arranged in the middle of the liquid separation head (3) and located at the inner cavity (11).

3. The refrigerant distribution device of a refrigeration device according to claim 1, characterized in that: A liquid inlet (4) is fixedly provided on one side of the expansion valve (2), and a liquid outlet (5) is fixedly provided on the side of the expansion valve (2) away from the liquid inlet (4).

4. The refrigerant distribution device of a refrigeration device according to claim 1, characterized in that: The throttling orifice plate (7) is provided with screw holes (8) at both upper and lower ends, and fixing bolts (9) are threadedly arranged at the rear end of the throttling orifice plate (7) and at the corresponding screw holes (8).

5. The refrigerant distribution device of a refrigeration device according to claim 1, characterized in that: The liquid dispensing head (3) is provided with a plurality of liquid outlet holes (14) at equal distances from the front end thereof.

6. The refrigerant distribution device of a refrigeration device according to claim 1, characterized in that: A plurality of tube holes (12) are equidistantly provided at the front end of the liquid dispensing head (3) and located at the corresponding liquid outlet holes (14).

7. The refrigerant distribution device of a refrigeration device according to claim 1, characterized in that: A plurality of distribution tubes (13) are arranged inside the liquid dispensing head (3) and in the corresponding tube holes (12).

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