Carbon dioxide refrigerator

Abstract

The utility model relates to the technical field of refrigerating machines, and discloses a carbon dioxide refrigerating machine which comprises a compressor, the output end of the compressor is communicated with a condenser, and water filtering assemblies are fixedly installed at the water inlet end of the condenser and the water inlet end of an evaporator. A motor on the left side drives a gear to rotate, the gear drives a round rod on the left side to move rightwards, and then a sliding ring on the left side transversely moves rightwards in a side wing shell; a motor on the right side drives a gear to rotate, the gear drives a round rod on the right side to move rightwards, and then a sliding ring on the right side transversely moves rightwards in a side wing shell; when a user observes that the sliding ring on the left side moves to the center of the flange shell through the visual window body and then stops, meanwhile, the sliding ring on the right side just stops at the position of the sealing circular plate, the used filter element can be replaced by disassembling the sealing circular plate, the bolts, the nuts and the movable ring plate, and in the process, the two sliding rings are arranged to transversely move left and right synchronously; therefore, the purpose of replacing the filter element without cutting off water circulation can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigerating machine technical field, concretely is a kind of carbon dioxide refrigerator. BACKGROUND

[0002] The working principle of carbon dioxide refrigerator is mainly based on the phase change process of carbon dioxide. It compresses carbon dioxide gas into high-pressure gas, and then cools it into liquid state through condenser, so as to obtain refrigeration effect. In this process, the key components of carbon dioxide refrigerator-compressor, condenser, expansion valve and evaporator play an important role. Compressor is responsible for compressing gas, liquefying carbon dioxide into liquid state; condenser converts liquid carbon dioxide into high-pressure liquid condensate through cooling effect; expansion valve is responsible for throttling, throttling high-pressure liquid condensate into low-pressure liquid condensate; finally, evaporator absorbs heat from low-pressure liquid condensate and converts it into gas, so as to achieve refrigeration effect.

[0003] In order to guide the heat in the condenser and the cold of the evaporator out, water source will be injected into the condenser or the evaporator, and then the absorbed heat or water source will be used. However, the water source will freeze and adhere to the inner wall of the condenser or the evaporator after a long time of use. If there is no water filtering mechanism, these frozen substances will adhere to the inner wall of the condenser or the evaporator, thereby reducing the service life of the condenser or the evaporator. At present, the water inlet end of the conventional condenser or evaporator is equipped with a water filtering mechanism. However, in order to replace the filter element in the filtering mechanism, the water circulation needs to be cut off, which causes the entire carbon dioxide refrigerator to stop running, thereby causing low refrigeration efficiency. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a carbon dioxide refrigerator, which has the advantage of replacing the filter element without cutting off the water circulation, and solves the above problems.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose of replacing the filter element without cutting off the water circulation, the utility model provides the following technical scheme: a carbon dioxide refrigerator, comprising a compressor, the output end of the compressor is communicated with a condenser, the output end of the condenser is communicated with an evaporator, the output end of the evaporator is communicated with an expansion valve, the water inlet end of the condenser and the evaporator is fixedly installed with a water filtering assembly, the connecting pipeline between the condenser and the expansion valve is installed with a sight glass, an electromagnetic valve and a drying filter from left to right, respectively, the two ends of the compressor are installed with a low-pressure gauge and a high-pressure gauge, respectively, the low-pressure gauge and the high-pressure gauge are fixedly installed with a pressure switch, and the water inlet end and the water outlet end of the condenser and the evaporator are embedded with a temperature sensor and a water flow switch.

[0008] Preferably, the water filter assembly comprises a flange shell, both sides of the flange shell are fixedly installed with side wing shells, tail ends of the side wing shells are detachably installed with side wing sealing plates, front and back surfaces of the side wing shells are detachably installed with sealing circular plates, and top portions of the side wing shells are embedded with visible window bodies.

[0009] Preferably, the inside of the side wing shell is slidably installed with a sliding ring, an inner wall of the sliding ring is fixedly installed with a fixed ring plate, the fixed ring plate is penetrated with bolts and nuts, the fixed ring plate is connected with a movable ring plate through the bolts and the nuts, and a filter core is arranged between the movable ring plate and the fixed ring plate.

[0010] Preferably, the side surface of the sliding ring is fixedly installed with a circular rod, and tooth grooves are arranged on the surface of the circular rod at equal intervals.

[0011] Preferably, the surface of the side wing sealing plate is fixedly installed with a support, the inside of the support is rotatably installed with a gear, the shaft rod of the gear is fixedly connected with the output end of a motor, and the motor is installed on the side surface of the support.

[0012] Preferably, the gear and the tooth groove are meshed with each other, the number of the sliding rings is two, and a I-shaped blocking piece matched with the shapes of the two sliding rings is arranged between the two sliding rings.

[0013] Preferably, one end of the circular rod penetrates and extends to the outside of the side wing sealing plate, and the circular rod and the side wing sealing plate are connected through a sealing sleeve.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a carbon dioxide freezer, has the following beneficial effects:

[0016] The carbon dioxide freezer drives the gear on the left side to rotate through the motor on the left side, drives the circular rod on the left side to move right through the gear, and then the sliding ring on the left side moves right in the side wing shell; the gear on the right side is driven to rotate through the motor on the right side, the circular rod on the right side is driven to move right through the gear, and then the sliding ring on the right side moves right in the side wing shell; the sliding ring on the left side is observed to stop after moving to the center of the flange shell through the visible window body, and the sliding ring on the right side stops at the position of the sealing circular plate, the sealing circular plate, the bolts and the nuts and the movable ring plate are removed, and the filter core after use can be replaced, two sliding rings are arranged to move left and right synchronously in this process, and the purpose that the filter core can be replaced without cutting off the water circulation can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a refrigeration machine principle schematic view of the utility model;

[0018] Figure 2 It is the plane structure schematic view of water filter assembly of the utility model;

[0019] Figure 3 It is the three-dimensional structure schematic view of water filter assembly of the utility model;

[0020] Figure 4 It is the structure schematic view of sliding ring, round rod and gear of the utility model;

[0021] Figure 5 It is the structure schematic view of round rod and gear of the utility model;

[0022] Figure 6 It is the exploded structure schematic view of sliding ring, filter core and movable ring plate of the utility model.

[0023] In the drawing: 1, compressor; 2, condenser; 3, evaporator; 4, expansion valve; 5, water filter assembly; 51, flange shell; 52, wing shell; 53, wing sealing plate; 54, visible window; 55, sealing round plate; 56, sliding ring; 57, fixed ring plate; 58, bolt and nut; 59, movable ring plate; 510, filter core; 511, round rod; 512, gear slot; 513, support; 514, gear; 515, motor. DETAILED DESCRIPTION

[0024] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] Please refer to Figure 1 A carbon dioxide refrigerator, comprising a compressor 1, the output end of the compressor 1 is communicated with a condenser 2, the output end of the condenser 2 is communicated with an evaporator 3, the output end of the evaporator 3 is communicated with an expansion valve 4, a sight glass, a solenoid valve and a drying filter are respectively installed on the connecting pipeline between the condenser 2 and the expansion valve 4 from left to right, a low-pressure gauge and a high-pressure gauge are respectively installed on both ends of the compressor 1, a pressure switch is fixedly installed between the low-pressure gauge and the high-pressure gauge, temperature sensors and water flow switches are embedded in the water inlet end and the water outlet end of the condenser 2 and the evaporator 3, the above-mentioned scheme is prior art, and detailed description is not needed in the present application.

[0026] Please refer to Figures 2-5, the water inlet end of the condenser 2 and the evaporator 3 are fixedly installed with water filtering assemblies 5, which are used for filtering the entering water and reducing dirt into the inside of the condenser 2 and the evaporator 3; the water filtering assembly 5 comprises a flange shell 51, both sides of the flange shell 51 are fixedly installed with side wing shells 52, the side wing shell 52 and the flange shell 51 are mutually penetrated; the tail end of the side wing shell 52 is detachably installed with a side wing sealing plate 53, the front face and the back face of the side wing shell 52 are detachably installed with sealing circular plates 55, the filter core can be replaced by opening the sealing circular plate 55; the top of the side wing shell 52 is embedded with a visible window body 54, which is used for observing the use condition of the filter core in the inside of the flange shell 51;

[0027] Please refer to Figures 2-5 , the inside of the side wing shell 52 is slidably installed with sliding rings 56, the number of the sliding rings 56 is two, a I-shaped blocking piece which is matched with the shape of the sliding ring 56 is arranged between the two sliding rings 56, which is used for preventing dirt water from entering during the horizontal shifting of the two sliding rings 56; the inner wall of the sliding ring 56 is fixedly installed with a fixed ring plate 57, the inside of the fixed ring plate 57 is inserted with bolts and nuts 58, the fixed ring plate 57 is connected with a movable ring plate 59 through the bolts and the nuts 58, a filter core 510 is arranged between the fixed ring plate 57 and the movable ring plate 59, the filter core 510 can be replaced by detaching the bolts and the nuts 58 and the movable ring plate 59 after the sealing circular plate 55 is opened.

[0028] Please refer to Figures 2-5 , the side of the sliding ring 56 is fixedly installed with a circular rod 511, one end of the circular rod 511 penetrates and extends to the outside of the side wing sealing plate 53, the circular rod 511 is connected with the side wing sealing plate 53 through a sealing sleeve. The surface of the circular rod 511 is provided with tooth grooves 512 which are arranged at equal intervals.

[0029] Please refer to Figures 2-5 , the surface of the side wing sealing plate 53 is fixedly installed with a support 513, the inside of the support 513 is rotatably installed with a gear wheel 514, the gear wheel 514 is meshed with the tooth grooves 512; the shaft of the gear wheel 514 is fixedly connected with the output end of a motor 515, the motor 515 is installed on the side of the support 513.

[0030] Working principle: in use, the left motor 515 drives the gear wheel 514 to rotate, the gear wheel 514 drives the left circular rod 511 to move right, and then the left sliding ring 56 horizontally shifts right in the side wing shell 52;

[0031] the right motor 515 drives the gear wheel 514 to rotate, the gear wheel 514 drives the right circular rod 511 to move right, and then the right sliding ring 56 horizontally shifts right in the side wing shell 52;

[0032] The left sliding ring 56 is observed through the visual window 54 to move to the center of the flange shell 51 and stop, and the right sliding ring 56 just stops at the position of the sealing disc 55, and the used filter core 510 can be replaced by disassembling the sealing disc 55, the bolt and the nut 58 and the movable ring plate 59, and in this process, the two sliding rings 56 are set to move horizontally and synchronously left and right, so that the filter core can be replaced without interrupting the water circulation.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide refrigerator comprising a compressor (1), the output of which is in communication with a condenser (2), the output of which is in communication with an evaporator (3), the output of which is in communication with an expansion valve (4), characterised in that: The water inlet ends of the condenser (2) and the evaporator (3) are both fixedly installed with a water filter assembly (5); a sight glass, a solenoid valve and a drying filter are respectively installed from left to right on the connecting pipe between the condenser (2) and the expansion valve (4); a low-pressure gauge and a high-pressure gauge are respectively installed at both ends of the compressor (1); a pressure switch is fixedly installed between the low-pressure gauge and the high-pressure gauge; and a temperature sensor and a water flow switch are both embedded in the water inlet and outlet ends of the condenser (2) and the evaporator (3).

2. A carbon dioxide refrigerator as claimed in claim 1, characterised in that: The water filter assembly (5) comprises a flange housing (51), side wing housings (52) are fixedly mounted on both sides of the flange housing (51), side wing sealing plates (53) are detachably mounted on the tail ends of the side wing housings (52), sealing circular plates (55) are detachably mounted on the front and back sides of the side wing housings (52), and a visual window (54) is embedded in the top of the side wing housings (52).

3. A carbon dioxide refrigerator as claimed in claim 2, characterised in that: A sliding ring (56) is slidably installed inside the side wing shell (52), and a fixed ring plate (57) is fixedly installed on the inner wall of the sliding ring (56). Bolts and nuts (58) are inserted into the interior of the fixed ring plate (57). The fixed ring plate (57) is connected to the movable ring plate (59) through the bolts and nuts (58), and a filter element (510) is provided between the movable ring plate (59) and the fixed ring plate (57).

4. A carbon dioxide refrigerator as claimed in claim 3, characterised in that: A round rod (511) is fixedly mounted on the side surface of the sliding ring (56), and tooth grooves (512) arranged at equal intervals are formed on the surface of the round rod (511).

5. A carbon dioxide refrigerator as claimed in claim 4, characterised in that: A support (513) is fixedly mounted on the surface of the side wing sealing plate (53), a gear (514) is rotatably mounted inside the support (513), the shaft of the gear (514) is fixedly connected to the output end of a motor (515), and the motor (515) is mounted on the side of the support (513).

6. A carbon dioxide refrigerator as claimed in claim 5, characterised in that: The gear (514) and the tooth groove (512) are meshed with each other; there are two sliding rings (56), and an I-shaped blocking piece matching the shapes of the two sliding rings (56) is provided between the two sliding rings (56).

7. A carbon dioxide refrigerator as claimed in claim 5, characterised in that: One end of the round rod (511) passes through and extends to the outside of the side wing sealing plate (53), and a sealing sleeve is used to connect the round rod (511) and the side wing sealing plate (53).

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