Refrigerant piping system for a frozen food manufacturing apparatus

Abstract

The utility model discloses a refrigeration pipeline system of frozen food manufacturing equipment, include: bottom plate, the left side of bottom plate is equipped with first casing, the right side of bottom plate is equipped with second casing, the outside of the top of first casing is equipped with evaporimeter, first casing is equipped with the partition that extends horizontally towards second casing, the upper portion of partition is installed with condenser, bottom plate is installed with the compressor below partition, the right side of compressor is equipped with the output pipe that extends upwards, and the input end of condenser is connected with output pipe through first pipe fitting that extends along the front -back direction and the up -down direction, and the position of the front side of compressor is equipped with the return pipe close to first casing, and the output end of evaporimeter is connected with return pipe through the second pipe fitting that extends upwards, and the input end of evaporimeter is connected with the capillary tube that extends downwards, and the output end of condenser is connected with capillary tube through third pipe fitting that extends along the front -back direction and the left -right direction, and the above refrigeration pipeline system structure is compact, and the layout is neat, is favorable to maintenance.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a refrigeration piping system for a frozen food manufacturing equipment. Background Technology

[0002] As a core component of cold beverage equipment, slush machines are widely used in dessert shops, fast food chains, coffee shops, and home consumption scenarios. Slush machines use an air conditioning refrigeration system to pre-cool the raw materials and stir and output them at low temperatures, producing soft and smooth ice cream or sorbet products.

[0003] An air conditioning refrigeration system includes a compressor, condenser, throttling element, and evaporator connected in sequence by refrigeration pipes. The body of a snow melting machine is usually arranged in a vertical column shape. The evaporator and the matching material tank stirring mechanism extend from the top area of ​​the body to the side in a cantilever form. The compressor, condenser, and throttling element are housed inside the body. The refrigeration pipes connecting the compressor and condenser, the condenser and throttling element, and the evaporator and compressor are arranged haphazardly inside the body, resulting in a large length and width of the body, which is also not conducive to maintenance.

[0004] In addition, the outer casing of the machine is usually made by splicing the left and right casings together to facilitate the assembly of components such as compressors, condensers and throttling elements, as well as the welding of refrigeration pipes. Welding the refrigeration pipes near the left or right casing with welding tools will damage the left or right casing. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a refrigeration piping system for frozen food manufacturing equipment with a compact structure and regular layout, which can create more operating space to facilitate maintenance.

[0006] A refrigeration piping system for a frozen food manufacturing equipment according to an embodiment of the present invention includes: a base plate; a first housing extending upward on the left side of the base plate; a second housing extending upward and integrally joined with the first housing on the right side of the base plate; an evaporator on the outer side of the top of the first housing; a partition extending horizontally toward the second housing on the inner sidewall of the middle part of the first housing; a condenser mounted above the partition; a compressor mounted on the base plate below the partition; an upward-extending output pipe on the right side of the compressor; the output pipe being connected to the input end of the condenser via a first fitting extending along the front-back and vertical directions; a return pipe located near the first housing on the front side of the compressor; the return pipe being connected to the output end of the evaporator via a second fitting extending upward; a downward-extending capillary tube connected to the input end of the evaporator; and the output end of the condenser being connected to the capillary tube via a third fitting extending along the front-back and horizontal directions.

[0007] The refrigeration piping system of the frozen food manufacturing equipment according to the embodiments of this utility model has at least the following beneficial effects:

[0008] The output pipe is located directly below the condenser, and the return pipe is located on the side of the compressor near the evaporator, which helps to shorten the length of the first and second pipe fittings respectively. The third pipe fitting extends in the left-right and front-back directions to connect the capillary tube and the output end of the condenser, making the refrigeration piping system compact and well-organized, and creating more operating space to facilitate maintenance.

[0009] In some embodiments of this utility model, the input end of the condenser is connected to a downwardly extending inlet pipe, and the two ends of the first pipe are respectively a first vertical pipe section inserted into the output pipe and a second vertical pipe section inserted into the inlet pipe. A sloping pipe connecting section that slopes downward from front to back is connected between the first vertical pipe section and the second vertical pipe section.

[0010] In some embodiments of this utility model, the second vertical pipe section is connected to a bypass pipe located behind the compressor and extending to the left. The bypass pipe is connected to the input end of the evaporator through a fourth fitting. The bypass pipe is equipped with a solenoid valve for controlling its on / off state.

[0011] In some embodiments of this utility model, the base plate is provided with a U-shaped bracket with an opening facing downwards. The two ends of the U-shaped bracket are fixedly installed on the base plate. The top of the U-shaped bracket is supported on the lower end face of the end of the partition. The left edge of the rear side of the U-shaped bracket is provided with a notch opposite to the bypass pipeline.

[0012] In some embodiments of this utility model, a three-way valve is connected between the second vertical pipe section and the inlet pipe, and the end of the bypass pipe away from the fourth pipe fitting is connected to the bypass port of the three-way valve. The first vertical pipe section, the inclined pipe connecting section and the second vertical pipe section together form an "S" shaped pipe.

[0013] In some embodiments of this utility model, the bypass pipeline includes a horizontal section connected to the three-way valve and a bend connecting the horizontal section to the fourth pipe fitting. The three-way valve, the inlet pipe, the horizontal section, and the first pipe fitting are pre-welded and fixed as an integral structure.

[0014] In some embodiments of this utility model, the right edge of the front side of the compressor is provided with a liquid injection pipe for vacuuming and injecting refrigerant. The liquid injection pipe extends upward and is located at the inner circumferential corner of the second housing. The end of the liquid injection pipe is provided with a sealing plug.

[0015] In some embodiments of this utility model, the first housing has a first opening facing the second housing, the second housing has a second opening facing the first housing, the first opening and the second opening are joined together to form an accommodating space, the reflux pipe is close to the front edge of the first opening, and the second fitting includes a first connecting section pre-welded to the upper end of the reflux pipe and a second connecting section connected between the first connecting section and the output end of the evaporator, the first connecting section moving away from the first opening from bottom to top to the right.

[0016] In some embodiments of this utility model, the upper end of the first connecting section is located above the compressor, and the distance between the second connecting section and the front edge of the first opening is A, satisfying: 20mm < A < 30mm.

[0017] In some embodiments of this utility model, the two side walls of the first opening are provided with a plurality of hook grooves arranged at intervals along the vertical direction, the two side walls of the second opening are provided with hook portions corresponding to the hook grooves one by one, and the lower ends of the first housing and the lower ends of the second housing are threadedly connected to the base plate.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the refrigeration piping system of one embodiment of the frozen food manufacturing equipment of this utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of the embodiment with the second housing removed from another perspective;

[0022] Figure 3 This is a structural diagram of the base plate, the first shell, and the second shell.

[0023] Figure label:

[0024] Base plate 110; First housing 120; Hook groove 121; Second housing 130; Hook part 131; Evaporator 200; Baffle 300; Condenser 400; Inlet pipe 410; Compressor 500; Output pipe 510; Return pipe 520; Liquid injection pipe 530; First fitting 610; First vertical pipe section 611; Second vertical pipe section 612; Inclined pipe connecting section 613; Second fitting 620; First connecting section 621; Second connecting section 622; Third fitting 630; Bypass pipe 640; Horizontal section 641; Bend section 642; Fourth fitting 650; Three-way valve 660; Capillary tube 700; Solenoid valve 800; U-shaped bracket 900; Notch part 910. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] See Figure 1 and Figure 2 This utility model discloses a refrigeration piping system for a frozen food manufacturing equipment, comprising: a base plate 110; a first housing 120 extending upwards on the left side of the base plate 110; a second housing 130 extending upwards and integrally formed with the first housing 120 on the right side of the base plate 110; an evaporator 200 disposed on the outer side of the top of the first housing 120; a partition 300 extending horizontally toward the second housing 130 disposed on the inner sidewall of the middle portion of the first housing 120; a condenser 400 mounted above the partition 300; and a compressor 500 mounted on the base plate 110 below the partition 300. The compressor 500 has an upwardly extending output pipe 510 on its right side. The output pipe 510 is connected to the input end of the condenser 400 via a first pipe 610 extending along the front-back direction and the up-down direction. The compressor 500 has a return pipe 520 on its front side near the first housing 120. The return pipe 520 is connected to the output end of the evaporator 200 via a second pipe 620 extending upward. The input end of the evaporator 200 is connected to a downwardly extending capillary tube 700. The output end of the condenser 400 is connected to the capillary tube 700 via a third pipe 630 extending along the front-back direction and the left-right direction.

[0030] The output pipe 510 is located directly below the condenser 400, and the return pipe 520 is located on the side of the compressor 500 near the evaporator 200, which helps to shorten the length of the first pipe 610 and the second pipe 620 respectively. The third pipe 630 extends in the left-right and front-back directions to connect the capillary tube 700 and the output end of the condenser 400, making the refrigeration piping system compact and well-organized, and creating more operating space to facilitate maintenance.

[0031] See Figure 1In some embodiments of this utility model, the input end of the condenser 400 is connected to a downwardly extending inlet pipe 410. The two ends of the first pipe fitting 610 are respectively a first vertical pipe section 611 inserted into the output pipe 510 and a second vertical pipe section 612 inserted into the inlet pipe 410. A sloping pipe connecting section 613, which slopes downward from front to back, connects the first vertical pipe section 611 and the second vertical pipe section 612. The first pipe fitting 610, composed of the first vertical pipe section 611, the second vertical pipe section 612, and the sloping pipe connecting section 613, does not require increasing the height gap between the compressor 500 and the condenser 400 to install the first pipe fitting 610, allowing the compressor 500 and the condenser 400 to be arranged more compactly in the height direction.

[0032] See Figure 1 and Figure 2 In some embodiments of this utility model, the second vertical pipe section 612 is connected to a bypass pipe 640 located behind the compressor 500 and extending to the left. The bypass pipe 640 is connected to the input end of the evaporator 200 through a fourth pipe fitting 650. The bypass pipe 640 is equipped with a solenoid valve 800 to control its opening and closing. It should be noted that when the compressor 500, condenser 400, capillary tube 700 and evaporator 200 are connected in sequence to form a closed chain, the evaporator 200 is used to cool raw materials to make frozen food. After the frozen food is frozen, it is difficult to remove it quickly. At this time, simply opening the solenoid valve 800 will allow the high-temperature and high-pressure refrigerant discharged from the compressor 500 to enter the input end of the evaporator 200 along the bypass pipe 640 and the fourth pipe fitting 650, thereby causing the evaporator 200 to generate heat to transfer to the frozen food, allowing the frozen food to quickly remove from the evaporator 200.

[0033] See Figure 2 In some embodiments of this utility model, the base plate 110 is provided with a U-shaped bracket 900 with an opening facing downwards. Both ends of the U-shaped bracket 900 are fixedly installed on the base plate 110, and the top of the U-shaped bracket 900 is supported on the lower end face of the partition plate 300. The left rear edge of the U-shaped bracket 900 is provided with a notch 910 opposite to the bypass pipe 640. It is understood that the U-shaped bracket 900 provides a large and stable supporting force to the partition plate 300, which is beneficial for the stable installation of the condenser 400 and other components. When the bypass pipe 640 consists of at least two sections, the notch 910 can avoid welding tools, facilitating the welding and assembly of the bypass pipe 640.

[0034] See Figure 2In some embodiments of this utility model, in order to facilitate the connection between the first pipe fitting 610, the output pipe 510 and the bypass pipe 640, a three-way valve 660 is connected between the second vertical pipe section 612 and the inlet pipe 410. The end of the bypass pipe 640 away from the fourth pipe fitting 650 is connected to the bypass port of the three-way valve 660. The first vertical pipe section 611, the inclined pipe connecting section 613 and the second vertical pipe section 612 together form an "S" shaped pipe. Even with the addition of the three-way valve 660, the first pipe fitting 610 with the above-mentioned shape can still arrange the compressor 500 and the condenser 400 more compactly in the height direction.

[0035] See Figure 2 In some embodiments of this utility model, in order to improve the welding efficiency between refrigeration pipes and avoid the problem of insufficient assembly accuracy that may be caused by welding the refrigeration pipes one by one, the bypass pipe 640 includes a horizontal section 641 connected to the three-way valve 660 and a bent section 642 connecting the horizontal section 641 to the fourth pipe fitting 650. The three-way valve 660, the inlet pipe 410, the horizontal section 641 and the first pipe fitting 610 are pre-welded and fixed as an integral structure. When assembling the whole machine, it is only necessary to weld the output pipe 510 and the first pipe fitting 610 together and weld the horizontal section 641 and the bent section 642 together.

[0036] See Figure 1 In some embodiments of this utility model, a liquid injection pipe 530 for vacuuming and refrigerant injection is provided on the right edge of the front side of the compressor 500. The liquid injection pipe 530 extends upward and is located at the inner circumferential corner of the second housing 130. A sealing plug is provided at the end of the liquid injection pipe 530. It should be noted that before injecting refrigerant into the compressor 500, the air inside the compressor 500 is first evacuated by connecting a vacuum pump to the liquid injection pipe 530. Then, refrigerant is injected into the liquid injection pipe 530. Finally, the opening of the liquid injection pipe 530 is sealed with a sealing plug. The position of the liquid injection pipe 530 makes full use of the internal space of the second housing 130.

[0037] See Figure 1 and Figure 3In some embodiments of this utility model, the first housing 120 has a first opening facing the second housing 130, and the second housing 130 has a second opening facing the first housing 120. The first opening and the second opening are joined together to form an accommodating space. The reflux pipe 520 is close to the front edge of the first opening. The second pipe fitting 620 includes a first connecting section 621 pre-welded to the upper end of the reflux pipe 520 and a second connecting section 622 connected between the first connecting section 621 and the output end of the evaporator 200. The first connecting section 621 moves away from the first opening from bottom to top and to the right. It should be noted that the first connecting section 621 is pre-welded to the upper end of the return pipe 520, and the second connecting section 622 is pre-welded to the output end of the evaporator 200. During the assembly of the whole machine, the first connecting section 621 and the second connecting section 622 need to be welded and fixed. The welding positions of the first connecting section 621 and the second connecting section 622 are a certain distance away from the first opening, so that the welding tool will not touch the first housing 120 and easily damage the first housing 120.

[0038] See Figure 1 In some embodiments of this utility model, the upper end of the first connecting section 621 is located above the compressor 500, and the distance A between the second connecting section 622 and the front edge of the first opening satisfies: 20mm < A < 30mm. When the above dimensions are met, sufficient space is reserved for welding tools without wasting materials or causing a messy arrangement of the second pipe fitting 620.

[0039] See Figure 3 In some embodiments of this utility model, the two side walls of the first opening are provided with a plurality of hook grooves 121 arranged at intervals along the vertical direction, and the two side walls of the second opening are provided with hook portions 131 corresponding to the hook grooves 121 one by one. The lower ends of the first housing 120 and the lower ends of the second housing 130 are both threadedly connected to the base plate 110. It should be noted that the first housing 120 and the second housing 130 are both connected to the base plate 110, and the first housing 120 and the second housing 130 are relatively limited by the cooperation of the hook portions 131 and the hook grooves 121, thereby improving assembly efficiency.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigeration piping system of a frozen food manufacturing apparatus, characterized by, include: A base plate (110) has an upwardly extending first housing (120) on its left side and a second housing (130) extending upwardly and integrally formed with the first housing (120) on its right side. An evaporator (200) is located on the outer side of the top of the first housing (120). A partition (300) extending horizontally toward the second housing (130) is located on the inner wall of the middle portion of the first housing (120). A condenser (400) is installed above the partition (300). A compressor (500) is installed on the base plate (110) below the partition (300). A condenser (400) is located on the right side of the compressor (500). An upwardly extending output pipe (510) is connected to the input end of the condenser (400) via a first fitting (610) extending along the front-rear and vertical directions. A return pipe (520) is provided on the front side of the compressor (500) near the first housing (120). The return pipe (520) is connected to the output end of the evaporator (200) via an upwardly extending second fitting (620). A downwardly extending capillary tube (700) is connected to the input end of the evaporator (200). The output end of the condenser (400) is connected to the capillary tube (700) via a third fitting (630) extending along the front-rear and horizontal directions.

2. The refrigeration piping system of a frozen food manufacturing equipment according to claim 1, characterized in that: The input end of the condenser (400) is connected to a downwardly extending inlet pipe (410). The two ends of the first pipe fitting (610) are respectively a first vertical pipe section (611) inserted into the output pipe (510) and a second vertical pipe section (612) inserted into the inlet pipe (410). A sloping pipe connecting section (613) that slopes downward from front to back is connected between the first vertical pipe section (611) and the second vertical pipe section (612).

3. The refrigeration piping system of a frozen food manufacturing equipment according to claim 2, characterized in that: The second vertical pipe section (612) is connected to a bypass pipe (640) located behind the compressor (500) and extending to the left. The bypass pipe (640) is connected to the input end of the evaporator (200) through a fourth pipe fitting (650). The bypass pipe (640) is equipped with a solenoid valve (800) to control its opening and closing.

4. The refrigeration piping system of a frozen food manufacturing equipment according to claim 3, characterized in that: The base plate (110) is provided with a U-shaped bracket (900) with an opening facing downwards. Both ends of the U-shaped bracket (900) are fixedly installed on the base plate (110). The top of the U-shaped bracket (900) is supported on the lower end face of the end of the partition (300). The left edge of the rear side of the U-shaped bracket (900) is provided with a notch (910) opposite to the bypass pipe (640).

5. The refrigeration piping system of a frozen food manufacturing equipment according to claim 3, characterized in that: A three-way valve (660) is connected between the second vertical pipe section (612) and the inlet pipe (410). The bypass pipe (640) is connected to the bypass port of the three-way valve (660) at the end away from the fourth pipe fitting (650). The first vertical pipe section (611), the inclined pipe connecting section (613) and the second vertical pipe section (612) together form an "S" shaped pipe.

6. The refrigeration piping system of a frozen food manufacturing equipment according to claim 5, characterized in that: The bypass pipe (640) includes a horizontal section (641) connected to the three-way valve (660) and a bend section (642) connecting the horizontal section (641) to the fourth pipe fitting (650). The three-way valve (660), the inlet pipe (410), the horizontal section (641) and the first pipe fitting (610) are a pre-welded and fixed integral structure.

7. The refrigeration piping system of a frozen food manufacturing equipment according to claim 1, characterized in that: The compressor (500) has a liquid injection pipe (530) for vacuuming and injecting refrigerant on the right edge of the front side. The liquid injection pipe (530) extends upward and is located at the inner circumferential corner of the second housing (130). The end of the liquid injection pipe (530) is provided with a sealing plug.

8. The refrigeration piping system of a frozen food manufacturing equipment according to claim 1, characterized in that: The first housing (120) has a first opening facing the second housing (130), and the second housing (130) has a second opening facing the first housing (120). The first opening and the second opening are joined together to form an accommodating space. The reflux pipe (520) is located near the front edge of the first opening. The second fitting (620) includes a first connecting section (621) pre-welded to the upper end of the reflux pipe (520) and a second connecting section (622) connecting the first connecting section (621) and the output end of the evaporator (200). The first connecting section (621) extends to the right from the first opening from bottom to top.

9. The refrigeration piping system of a frozen food manufacturing equipment according to claim 8, characterized in that: The upper end of the first connecting section (621) is located above the compressor (500), and the distance between the second connecting section (622) and the front edge of the first opening is A, which satisfies: 20mm < A < 30mm.

10. The refrigeration piping system of a frozen food manufacturing equipment according to claim 8, characterized in that: The first opening has multiple hook grooves (121) spaced apart along the vertical direction on both sides of its two sides. The second opening has hook portions (131) that correspond one-to-one with the hook grooves (121) on both sides of its two sides. The lower ends of the first housing (120) and the second housing (130) are threadedly connected to the base plate (110).

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