Marine air-suspended variable frequency centrifugal cold water chiller

Abstract

The application discloses a marine air suspension variable-frequency centrifugal cold water unit and relates to the technical field of cold water units.The marine air suspension variable-frequency centrifugal cold water unit comprises a supporting mechanism, two supporting mechanisms are arranged, the inner sides of the two supporting mechanisms are fixedly connected with an evaporation mechanism and a condensation mechanism, and the evaporation mechanism and the condensation mechanism are integrated into one body through the two supporting mechanisms.The arc-shaped structures are oppositely arranged in cooperation with the inner side of the partition assembly, the overall occupied space is greatly reduced under the premise of guaranteeing the independent functions of the evaporation mechanism and the condensation mechanism, the marine air suspension variable-frequency centrifugal cold water unit is perfectly adapted to the narrow installation environment on the ship, and the layout inconvenience caused by the space dispersion of the split structure is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water chiller units, in particular to a marine air suspension variable frequency centrifugal water chiller unit. BACKGROUND

[0002] In the current booming modern shipping industry, the functions of ships are increasingly diversified, and the requirements for refrigeration systems are increasingly stringent. The traditional marine chiller unit generally has the problem of high energy consumption, which consumes a large amount of fuel during long navigation, thereby increasing the operating cost and aggravating environmental pollution. In addition, the maintenance process is complex, and professional personnel need to regularly inspect and lubricate mechanical bearings and other components. Any negligence may cause failure. Moreover, when the ship encounters severe sea conditions during navigation, the stability of the traditional unit is difficult to guarantee, and the refrigeration effect often fluctuates, which seriously affects the life of the crew and the safety of the goods.

[0003] In the prior art, for example, Chinese Patent Publication No. CN107101406A discloses a marine constant-temperature water chiller unit, which includes a compressor, an air-cooled condenser, an expansion valve, an evaporator, a constant-temperature mixing water tank, a return water pump, and a circulating pump. It also includes a temperature sensor, an electric heater, a flow sensor, and a three-way valve. The temperature sensor is arranged on the chilled water pipe. When the temperature sensor detects fluctuations in the chilled water temperature, the central control system controls the electric heater to act, so that the chilled water temperature is balanced at the set value. The flow sensor is arranged in the chilled water pipe. When the flow sensor detects that the flow does not match the design flow, the central control system controls the three-way valve to act, adjusts the flow of the chilled water, and balances the chilled water flow at the set value. Compared with the prior art, the present application has the advantages of simple principle and structure, small temperature fluctuation, high system energy efficiency ratio, and low overall operating cost.

[0004] The centrifugal water chiller unit in the prior art needs to be provided with corresponding evaporation mechanism and condensing mechanism to realize circulation. The traditional condensing structure and evaporation mechanism are usually distributed in a split type. Under the premise of limited space on the ship, the split type structure occupies a large space and is inconvenient. In addition, the prior art lacks effective environment wind utilization structure, and cannot utilize external environment wind to assist in temperature control evaporation or condensation in summer and winter, which has limitations.

[0005] Therefore, the ship air suspension variable frequency centrifugal cold water unit is proposed to solve the problems of the prior art that the centrifugal cold water unit needs to be provided with corresponding evaporation mechanism and condensation mechanism to realize circulation, the traditional condensation structure and evaporation mechanism are in a split distribution structure, and the space on the ship is relatively small, and the effective environment wind utilization structure is lacked. SUMMARY

[0006] The purpose of the present application is to provide a ship air suspension variable frequency centrifugal cold water unit to solve the problems of the prior art that the centrifugal cold water unit needs to be provided with corresponding evaporation mechanism and condensation mechanism to realize circulation, the traditional condensation structure and evaporation mechanism are in a split distribution structure, and the space on the ship is relatively small, and the effective environment wind utilization structure is lacked.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a ship air suspension variable frequency centrifugal cold water unit, comprising: a support mechanism, characterized in that the support mechanism is provided with two parts, and the inner side of the two support mechanisms is fixedly connected with an evaporation mechanism and a condensation mechanism;

[0008] The evaporation mechanism and the condensation mechanism are both hollow arc structures, and the evaporation mechanism and the condensation mechanism are oppositely arranged at the inner side of the two support mechanisms, and the inner side of the two support mechanisms is further fixedly connected with a partition assembly, the partition assembly is located at the inner side of the evaporation mechanism and the condensation mechanism, and the right side of the partition assembly is fixedly connected with a cover mechanism, the inside of the partition assembly is provided with a cavity, the cavity is a heat insulation cavity, the heat insulation cavity is used for isolating the heat absorbed by the evaporation mechanism from the heat released by the condensation mechanism, a heat insulation inner core is fixedly connected to the inner wall of the heat insulation cavity, the heat insulation inner core is used for preventing heat transfer, the cover mechanism is a conical barrel structure, two through holes are linearly arranged on the right side of the cover mechanism, a filter screen assembly is fixedly connected to the inner side opening of the cover mechanism, the filter screen assembly is provided with four parts, each two horizontally adjacent filter screen assemblies form a group, and the two groups of filter screen assemblies are linearly arranged on the upper and lower sides of the inside of the cover mechanism, a servo motor is further installed on the right side of the two groups of filter screen assemblies, a fan blade assembly is installed on the left side output shaft of the servo motor, the fan blade assembly and the servo motor together form an auxiliary air supply structure, the condensation mechanism is installed at the top end of the evaporation mechanism through an installation assembly, and the inner side of the cover mechanism 3 is fixedly connected with an inner partition 3018 for separating the two groups of filter screen assemblies 301.

[0009] Preferably, the bottom end surface of the support mechanism is fixedly connected with leg assemblies, the leg assemblies are provided with four places, each two longitudinally adjacent leg assemblies form a group, and the two groups of leg assemblies are fixedly connected in opposition on the bottom end surfaces of the two support mechanisms, the bottom end surfaces of the two groups of leg assemblies are fixedly connected with gasket assemblies, and mounting holes are formed at the inner four corner positions of the gasket assemblies.

[0010] Preferably, the outer sides of the two support mechanisms are fixedly connected with outer cover plates, the outer cover plates are provided with two places, and the two outer cover plates are fixedly connected in opposition on the front and rear side positions of the two support mechanisms, and the front end surface of the outer cover plate located on the front side is further fixedly connected with a control terminal.

[0011] Preferably, the left end surface of the evaporation mechanism is fixedly connected with a hot water inlet pipe, and the left end surface of the evaporation mechanism is further fixedly connected with a cold water outlet pipe, the hot water inlet pipe and the cold water outlet pipe are circularly connected through a copper pipe, and the left side of the condensation mechanism is further fixedly connected with a cold water inlet pipe and a hot water outlet pipe.

[0012] Preferably, the cold water inlet pipe and the hot water outlet pipe are connected through a copper pipe arranged in the condensation mechanism, the baffle assembly is used to separate the evaporation mechanism and the condensation mechanism, and the left side of the cover mechanism is provided with through holes, the through holes are provided with two places, and the two through holes are respectively located on the upper and lower sides of the baffle assembly.

[0013] Preferably, the through holes in the cover mechanism are inserted with a wind pipe assembly, the main body of the wind pipe assembly is an internal hollow structure, the left side surface of the wind pipe assembly is fixedly connected with a magnetic limiting plate, the diameter of the magnetic limiting plate is greater than the diameter of the wind pipe assembly, the magnetic limiting plate is used to be adsorbed and connected with the left end surface of the cover mechanism, and the magnetic limiting plate is an electromagnet structure that generates magnetism by electrification.

[0014] Preferably, the right side surface of the wind pipe assembly is fixedly connected with a limiting baffle, the limiting baffle is an annular structure, and the limiting baffle is used to limit the wind pipe assembly from coming out of the inside of the cover mechanism, one side of the magnetic limiting plate close to the cover mechanism is fixedly connected with a reset assembly, the reset assembly is a spring structure, and the other side of the reset assembly away from the magnetic limiting plate is connected with the left end surface of the cover mechanism and is used to promote the magnetic limiting plate to move and reset away from the cover mechanism.

[0015] Preferably, the front end surface of the outer cover plate located on the front side is fixedly connected with a connecting bracket, the connecting bracket is a U-shaped structure with a one-way opening on the rear side, a variable frequency motor is fixedly connected on the left side of the connecting bracket, an internal hollow structure of a shell assembly is further fixedly connected on the inner side of the connecting bracket, air bearings are arranged on the left and right sides of the inside of the shell assembly, and the output shaft of the variable frequency motor is connected with the air bearings and located on the inner side of the shell assembly.

[0016] Preferably, the right side output shaft of the variable frequency motor is provided with an impeller assembly, the impeller assembly is located at the inner side of the shell assembly, and the impeller assembly, the shell assembly and the variable frequency motor jointly form a compressor structure, and the front end surface of the connecting support is fixedly connected with a gas supply pump, the rear side of the gas supply pump is fixedly connected with an air outlet, and the air outlet is fixedly connected with a gas supply pipe, and the gas supply pipe is provided with two parts, and the two parts of the gas supply pipe are connected with two air bearings respectively.

[0017] Preferably, the bottom end of the shell assembly is fixedly connected with a suction pipe, the suction pipe is connected with an evaporation mechanism, and the top end of the shell assembly is fixedly connected with a supply pipe, the side of the supply pipe away from the shell assembly is connected with a condensation mechanism, the right end surface of the right side support mechanism is fixedly connected with a table plate mechanism, the top end surface of the table plate mechanism is fixedly connected with an air radiator, the right side of the condensation mechanism is provided with a condensation outlet pipe through a water pump, the condensation outlet pipe circulates through the air radiator, the top end of the air radiator is fixedly connected with a flashing assembly, the side of the condensation outlet pipe away from the condensation mechanism is connected with the flashing assembly, the top end of the flashing assembly is fixedly connected with a gas supplement pipe, the side of the gas supplement pipe away from the flashing assembly is connected with the suction pipe, and the rear side of the flashing assembly is provided with a backflow circulation pipe through a throttling control valve, the side of the backflow circulation pipe away from the throttling control valve is connected with the evaporation mechanism.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1、When the present application is used, compared with the design that the condensation mechanism and the evaporation mechanism of the traditional marine water chiller are distributed in a split type, the present application integrates the evaporation mechanism and the condensation mechanism into one body through two support mechanisms, the opposite arrangement of the arc-shaped structures cooperates with the inner side of the partition assembly, the overall occupied space is greatly reduced on the premise of ensuring the independent functions of the two, the installation environment on the ship is perfectly adapted, the layout inconvenience caused by the split structure due to space dispersion is avoided, and the installation flexibility and space utilization rate of the unit in the limited space of the ship are improved.

[0020] 2、When the present application is used, in view of the limitation that the traditional unit lacks an environmental wind utilization structure, the present application forms a complete environmental wind utilization system through the conical barrel cover mechanism, the adjustable air duct assembly and the auxiliary air supply structure, in summer, the fan blade assembly is driven to operate by the servo motor, external environmental wind is introduced into the condensation mechanism through the air duct assembly, and the heat dissipation is accelerated to enhance the condensation effect; in winter, the same structure can guide cold air to act on the evaporation mechanism, and the evaporation efficiency is improved, and the energy consumption is reduced by means of natural environmental wind, so that the unit can realize efficient operation in different seasons, and the single mode that the traditional unit only relies on its own energy consumption to control temperature is broken through.

[0021] 3. When in use, this invention employs a drive structure combining air bearings and a variable frequency motor. Compared to traditional mechanical bearings, air bearings achieve contactless suspension support through airflow provided by an air pump, completely eliminating losses and potential malfunctions caused by mechanical friction. Regular lubrication and maintenance are unnecessary, simplifying the maintenance process and reducing reliance on professional maintenance personnel. Simultaneously, the variable frequency motor can dynamically adjust its speed according to actual cooling needs, avoiding energy waste under the fixed speed of traditional units. Furthermore, the contactless operation characteristic allows the unit to maintain stable operation even in harsh sea conditions, ensuring stable cooling performance and protecting the lives of crew members and the safety of cargo. This comprehensively optimizes the performance of marine chiller units in terms of energy consumption, maintenance, and stability. Attached Figure Description

[0022] Figure 1 This is a top-view perspective view of the marine air-suspended variable frequency centrifugal chiller unit of the present invention;

[0023] Figure 2 This is a top-side perspective view of the marine air-suspended variable frequency centrifugal chiller unit of the present invention;

[0024] Figure 3 This is a front perspective view of the marine air-suspended variable frequency centrifugal chiller unit of the present invention;

[0025] Figure 4 This is a three-dimensional view showing the evaporation and condensation mechanisms of the marine air-suspended variable frequency centrifugal chiller unit of the present invention.

[0026] Figure 5 This is a left perspective view of the marine air-suspended variable frequency centrifugal chiller unit of the present invention;

[0027] Figure 6 This is a perspective view of the connection bracket and variable frequency motor assembly of the marine air-suspended variable frequency centrifugal chiller unit of the present invention.

[0028] Figure 7 This invention relates to a marine air-suspended variable frequency centrifugal chiller unit. Figure 2 Enlarged 3D view at point A in the middle;

[0029] Figure 8 This invention relates to a marine air-suspended variable frequency centrifugal chiller unit. Figure 3 Enlarged 3D view at point B;

[0030] Figure 9 This is a schematic diagram of the thermal insulation structure of the marine air-suspended variable frequency centrifugal chiller unit of the present invention;

[0031] In the figure: 1, support mechanism; 101, leg assembly; 1011, gasket assembly; 1012, outer cover plate; 1013, control terminal; 2, evaporation mechanism; 201, hot water inlet pipe; 2011, cold water outlet pipe; 2012, partition assembly; 20121, heat insulation cavity; 20122, heat insulation core; 2013, condensation mechanism; 2014, cold water inlet pipe; 2015, hot water outlet pipe; 2016, mounting assembly; 3, cover mechanism; 301, filter screen assembly; 3011, servo motor; 3012, fan blade assembly; 3013, air duct assembly; 3014, magnetic limit plate; 3015, limit baffle; 3016, reset assembly; 3017, air outlet hole; 3018, inner partition; 4, connecting bracket; 401, variable frequency motor; 4011, housing assembly; 4012, air bearing; 4013, impeller assembly; 4014, air supply pump; 4015, air supply connector; 4016, extraction pipe; 4017, supply pipe; 5, table mechanism; 501, air cooler; 5011, condensation outlet pipe; 5012, flashing assembly; 5013, air supply connector; 5014, backflow circulation pipe; 5015, throttle control valve. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Embodiment one: please refer to Figures 1-9 As shown in the figure, the present application provides a technical solution: marine air suspension variable frequency centrifugal cold water unit, comprising support mechanism 1, characterized in that the support mechanism 1 is provided with two, and the inner side of the two support mechanisms 1 is fixedly connected with evaporation mechanism 2 and condensation mechanism 2013.

[0034] The evaporation mechanism 2 and the condensation mechanism 2013 are both internally hollow arc-shaped structures, and the evaporation mechanism 2 and the condensation mechanism 2013 are oppositely arranged on the inner side of the two support mechanisms 1, and the inner side of the two support mechanisms 1 is also fixedly connected with the partition plate assembly 2012, the partition plate assembly 2012 is located on the inner side of the evaporation mechanism 2 and the condensation mechanism 2013, and the right side of the partition plate assembly 2012 is fixedly connected with the cover mechanism 3, the inside of the partition plate assembly 2012 is provided with a cavity, which is a heat insulation cavity 20121, the heat insulation cavity 20121 is used for isolating the heat absorbed by the evaporation mechanism 2 from the heat released by the condensation mechanism 2013, the inner wall of the heat insulation cavity 20121 is fixedly connected with a heat insulation inner core 20122, the heat insulation inner core 20122 is used for preventing heat transfer, the cover mechanism 3 is a conical barrel-shaped structure, two through holes are linearly arranged on the right side of the cover mechanism 3, and the inner side opening of the cover mechanism 3 is fixedly connected with a filter screen assembly 301, the filter screen assembly 301 is provided with four, wherein every two horizontally adjacent filter screen assemblies 301 form a group, and the two groups of filter screen assemblies 301 are linearly arranged on the upper and lower sides of the inside of the cover mechanism 3, and the right side of the two groups of filter screen assemblies 301 is also provided with a servo motor 3011, the left side output shaft of the servo motor 3011 is provided with a fan blade assembly 3012, and the fan blade assembly 3012 and the servo motor 3011 jointly form an auxiliary air supply structure, the condensation mechanism 2013 is installed on the top end of the evaporation mechanism 2 through an installation assembly 2016, an air duct assembly 3013 is provided with an air outlet hole 3017 in an annular array on the outer peripheral surface, and the inner side of the cover mechanism 3 is fixedly connected with an inner partition plate 3018 for separating the two groups of filter screen assemblies 301.

[0035] In this embodiment, in use, the two support mechanisms 1 serve as the bearing frame of the overall structure, and the evaporation mechanism 2 and the condensation mechanism 2013 are vertically connected by the inner side fixed connection, which changes the traditional horizontal side-by-side arrangement to vertical side-by-side arrangement, and this structural change only changes the original horizontal side-by-side arrangement occupying a larger area to vertical side-by-side arrangement occupying a smaller area, which does not affect the normal working effect of the evaporation mechanism 2 and the condensation mechanism 2013, and the evaporation mechanism 2 and the condensation mechanism 2013 are both internally hollow arc-shaped structures, this arc-shaped design not only reduces the resistance of the fluid flowing inside, but also closely fits the inner side of the two support mechanisms 1 through the opposite arrangement, maximally reduces the gap between them, and through the arrangement of the partition plate assembly 2012, the heat insulation cavity 20121 and the heat insulation inner core 20122, compared with the traditional straight-line vertical side-by-side evaporation mechanism 2 and condensation mechanism 2013, the heat exchange interference can be effectively reduced,

[0036] The inner sides of the two support mechanisms 1 are also fixedly connected with partition assemblies 2012. The partition assembly 2012 is located inside the evaporation mechanism 2 and the condensation mechanism 2013. It can not only achieve physical separation between the two to avoid mutual interference between the internal media, but also enhance the stability of the overall structure through fixed connection with the support mechanism 1, and prevent the mechanism from shifting due to turbulence when the ship is sailing.

[0037] Four outrigger assemblies 101 are fixedly connected to the bottom surface of the support mechanism 1. Each pair of longitudinally adjacent outrigger assemblies 101 forms a group. The two groups of outrigger assemblies 101 are distributed opposite to each other at the bottom of the support mechanism 1. The gasket assemblies 1011 at the bottom are fixed to the hull through the mounting holes at the four corners. The gasket assemblies 1011 can buffer the vibration of the ship during navigation and further improve the stability of the overall structure.

[0038] The front and rear sides of the two support mechanisms 1 are fixedly connected with outer protective plates 1012. The outer protective plates 1012 not only protect the internal mechanisms from external collisions and seawater erosion, but the control terminal 1013 on the front outer protective plate 1012 can also centrally control the overall operation, avoiding the cumbersome setting of multiple control units in the split structure. Through the integrated structural design, while ensuring the independent function of each mechanism, the space occupied on the ship is significantly reduced.

[0039] Example 2: Figures 1-5 As shown, a hot water inlet pipe 201 is fixedly connected to the upper side of the left end face of the evaporation mechanism 2, and a cold water outlet pipe 2011 is also fixedly connected to the left end face of the evaporation mechanism 2. The hot water inlet pipe 201 and the cold water outlet pipe 2011 are connected in a loop via a copper pipe. A cold water inlet pipe 2014 and a hot water outlet pipe 2015 are also fixedly connected to the left side of the condensation mechanism 2013. The cold water inlet pipe 2014 and the hot water outlet pipe 2015 are connected via a copper pipe installed in the condensation mechanism 2013. A partition assembly 2012 is used to separate the evaporation mechanism 2 from the condensation mechanism 2013, and a cover... The left side of the body mechanism 3 has two through holes, which are located on the upper and lower sides of the partition assembly 2012, respectively. The air duct assembly 3013 is inserted into the through hole in the body mechanism 3. The main body of the air duct assembly 3013 is a hollow structure. A magnetic limiting plate 3014 is fixedly connected to the left side of the air duct assembly 3013. The diameter of the magnetic limiting plate 3014 is larger than the diameter of the air duct assembly 3013. The magnetic limiting plate 3014 is used to adsorb and connect with the left end face of the body mechanism 3. The magnetic limiting plate 3014 is an electromagnet structure that generates magnetism when energized.

[0040] In this embodiment, the right side of the partition assembly 2012 is fixedly connected with a conical cover mechanism 3, the inner side of the cover mechanism 3 is fixedly connected with two filter screen assemblies 301 arranged in a straight line, the filter screen assemblies 301 can filter the entering air to prevent impurities from entering the evaporation mechanism 2 and the condensation mechanism 2013 and affecting the operation;

[0041] The left side of the cover mechanism 3 is provided with two through holes respectively located on the upper and lower sides of the partition assembly 2012, a wind pipe assembly 3013 inserted into the through hole is a hollow structure, and a magnetic limiting plate 3014 on the left side of the wind pipe assembly 3013 is an electromagnet structure generating magnetism by power supply, when it is needed to utilize the environmental wind, the control terminal 1013 controls the magnetic limiting plate 3014 to be powered off, the magnetism disappears, and the spring structure of a reset assembly 3016 on the side of the cover mechanism 3 close to the magnetic limiting plate 3014 pushes the magnetic limiting plate 3014 to drive the wind pipe assembly 3013 to move leftwards, so that the left end of the wind pipe assembly 3013 extends out of the through hole and opens the environmental wind entering channel;

[0042] The annular limiting baffle 3015 on the right side of the wind pipe assembly 3013 can prevent the wind pipe assembly 3013 from being pulled out of the cover mechanism 3, so as to ensure the structural safety, according to actual needs, two groups of servo motors 3011 installed on the right sides of the filter screen assemblies 301 are started, for example, when the servo motor 3011 on the right side of the upper right filter screen assembly 301 is started, the fan blade assembly 3012 on the output shaft on the left side thereof rotates to form an auxiliary air supply structure, in summer, the fan blade assembly 3012 introduces the external environmental wind through the wind pipe assembly 3013 and blows to the evaporation mechanism 2 to assist the evaporation mechanism 2 to evaporate under the condition of high temperature, in winter, the cold air introduced by the started servo motor 3011 on the upper right side acts on the condensation mechanism 2013 to assist the condensation efficiency, through flexible utilization of the environmental wind, the energy consumption of the unit itself is reduced, through the separation of the inner partition 3018, two independent air flow channels are formed after cooperation with the partition assembly 2012, the air flow channels do not interfere with each other, and the evaporation mechanism 2 and the condensation mechanism 2013 can independently realize their respective functions through the respective air flow channels;

[0043] When it is not needed to utilize the environmental wind, the control terminal 1013 controls the magnetic limiting plate 3014 to be powered on to generate magnetism, so that the magnetic limiting plate 3014 is adsorbed to the left end face of the cover mechanism 3 and drives the wind pipe assembly 3013 to move rightwards to close the through hole and avoid the influence of the external bad environment on the internal mechanism, the adjustable environmental wind utilization structure breaks through the limitation that the traditional unit cannot utilize the natural wind according to the seasonal temperature change, and the adaptability and energy saving property of the unit are improved.

[0044] Embodiment three: Figures 3-8As shown, the right side of the wind cylinder assembly 3013 is fixedly connected with a limiting baffle 3015, the limiting baffle 3015 is an annular structure, and the limiting baffle 3015 is used to limit the wind cylinder assembly 3013 from being pulled out of the inside of the cover mechanism 3, and one side of the magnetic limiting plate 3014 close to the cover mechanism 3 is fixedly connected with a reset assembly 3016, the reset assembly 3016 is a spring structure, and the other side of the reset assembly 3016 away from the magnetic limiting plate 3014 is connected with the left end surface of the cover mechanism 3, and is used to promote the movement of the magnetic limiting plate 3014 to the side away from the cover mechanism 3, the front end surface of the front outer guard plate 1012 is fixedly connected with a connecting bracket 4, the connecting bracket 4 is a U-shaped structure with a one-way opening at the rear side, a variable frequency motor 401 is fixedly connected to the left side of the connecting bracket 4, an inner hollow structure shell assembly 4011 is also fixedly connected to the inner side of the connecting bracket 4, air bearings 4012 are arranged on the left and right sides of the inside of the shell assembly 4011, the output shaft of the variable frequency motor 401 is connected with the air bearings 4012 and located at the inner side of the shell assembly 4011, an impeller assembly 4013 is installed on the right output shaft of the variable frequency motor 401, the impeller assembly 4013 is located at the inner side of the shell assembly 4011, and the impeller assembly 4013, the shell assembly 4011 and the variable frequency motor 401 together form a compressor structure, a gas supply pump 4014 is fixedly connected to the front end surface of the connecting bracket 4, a gas supply connecting pipe 4015 is fixedly connected to the rear side of the air outlet of the gas supply pump 4014, the gas supply connecting pipe 4015 is provided with two, and the two gas supply connecting pipes 4015 are connected with the two air bearings 4012 respectively, a suction pipe 4016 is fixedly connected to the bottom end of the shell assembly 4011, the suction pipe 4016 is connected with the evaporation mechanism 2, a supply pipe 4017 is fixedly connected to the top end of the shell assembly 4011, one side of the supply pipe 4017 away from the shell assembly 4011 is connected with the condensation mechanism 2013, a table mechanism 5 is fixedly connected to the right end surface of the right support mechanism 1, an air radiator 501 is fixedly connected to the top end surface of the table mechanism 5, a condensation outlet pipe 5011 is installed on the right side of the condensation mechanism 2013 through a water pump, the condensation outlet pipe 5011 circulates through the air radiator 501, a flashing assembly 5012 is fixedly connected to the top end of the air radiator 501, one side of the condensation outlet pipe 5011 away from the condensation mechanism 2013 is connected with the flashing assembly 5012, a gas supplement connecting pipe 5013 is fixedly connected to the top end of the flashing assembly 5012, one side of the gas supplement connecting pipe 5013 away from the flashing assembly 5012 is connected with the suction pipe 4016, a reflux circulation pipe 5014 is installed on the rear side of the flashing assembly 5012 through a throttle control valve 5015, one side of the reflux circulation pipe 5014 away from the throttle control valve 5015 is connected with the evaporation mechanism 2.

[0045] In this embodiment, when in use, the connecting bracket 4 at the front end of the front outer cover plate 1012 is a U-shaped structure with a rear-side one-way opening, the left side of which is fixedly connected with a variable frequency motor 401, which can adjust the output speed according to the refrigeration demand, and the inside of the connecting bracket 4 is fixedly connected with an internal hollow shell assembly 4011, which provides installation space for the compressor structure, and the air bearings 4012 on the left and right sides of the shell assembly 4011 are supplied with high-pressure gas through the air supply pump 4014 at the front end of the connecting bracket 4 through two air supply connecting pipes 4015, so as to form a gas film between the air bearings 4012 and the output shaft of the variable frequency motor 401, realize non-contact suspension support, and completely eliminate the mechanical friction of the traditional mechanical bearing.

[0046] The impeller assembly 4013 located inside the shell assembly 4011 is installed on the right side output shaft of the variable frequency motor 401, and the three together constitute a compressor structure, when the variable frequency motor 401 drives the impeller assembly 4013 to rotate, low-pressure refrigerant vapor is extracted from the evaporating mechanism 2 through the extraction pipe 4016 at the bottom end of the shell assembly 4011, and becomes high-pressure high-temperature vapor after compression, and is sent into the condensing mechanism 2013 through the supply pipe 4017 at the top end of the shell assembly 4011 for condensation.

[0047] The condensed refrigerant is sent into the air radiator 501 at the top end of the table plate mechanism 5 on the right side support mechanism 1 through the condensing out pipe 5011 connected with the water pump on the right side of the condensing mechanism 2013 for further heat dissipation, and then enters the flashing assembly 5012, the flashing gas separated in the flashing assembly 5012 returns to the extraction pipe 4016 through the air supply connecting pipe 5013, improving the compressor efficiency, and the liquid refrigerant enters the evaporating mechanism 2 through the throttle control valve 5015 and the backflow circulation pipe 5014 on the rear side, completing the refrigeration cycle.

[0048] Since the air bearing 4012 does not need to be lubricated, the cumbersome process of regular lubrication and maintenance of the traditional mechanical bearing is reduced, and the maintenance cost and fault risk are reduced; the speed regulation function of the variable frequency motor 401 can accurately match the output power of the unit with the actual refrigeration demand, avoiding the energy waste of the traditional fixed-speed unit; the non-contact suspension running mode reduces the influence of mechanical vibration when the ship encounters severe sea conditions, ensures the stability of the refrigeration effect, and solves many disadvantages of the traditional unit.

[0049] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Marine air-suspended variable frequency centrifugal cold water chiller unit, comprising a supporting mechanism (1), characterized in that, The support mechanism (1) is provided with two, and the inner side of the two support mechanisms (1) is fixedly connected with an evaporation mechanism (2) and a condensation mechanism (2013); The evaporation mechanism (2) and the condensation mechanism (2013) are both hollow arc structures, and the evaporation mechanism (2) and the condensation mechanism (2013) are oppositely arranged at the inner side of the two support mechanisms (1), and the inner side of the two support mechanisms (1) is also fixedly connected with a partition assembly (2012), the partition assembly (2012) is located at the inner side of the evaporation mechanism (2) and the condensation mechanism (2013), and the right side of the partition assembly (2012) is fixedly connected with a cover mechanism (3), the inside of the partition assembly (2012) is provided with a cavity, which is a heat insulation cavity (20121), the heat insulation cavity (20121) is used for isolating the heat absorbed by the evaporation mechanism (2) from the heat released by the condensation mechanism (2013), a heat insulation inner core (20122) is fixedly connected to the inner wall of the heat insulation cavity (20121), the heat insulation inner core (20122) is used for preventing heat transfer, the cover mechanism (3) is a conical barrel structure, two through holes are linearly arranged on the right side of the cover mechanism (3), and a filter screen assembly (301) is fixedly connected to the inner opening of the cover mechanism (3), the filter screen assembly (301) is provided with four, wherein every two horizontally adjacent filter screen assemblies (301) form a group, and the two groups of filter screen assemblies (301) are fixedly connected to the inner side of the cover mechanism (3) at upper and lower positions, an inner partition (3018) is fixedly connected to the inner side of the cover mechanism (3) for separating the two groups of filter screen assemblies (301), a servo motor (3011) is also mounted on the right side of the two groups of filter screen assemblies (301), a fan blade assembly (3012) is mounted on the left side output shaft of the servo motor (3011), and the fan blade assembly (3012) and the servo motor (3011) jointly constitute an auxiliary air supply structure, and the condensation mechanism (2013) is installed at the top of the evaporation mechanism (2) through an installation assembly (2016); The partition assembly (2012) is used for separating the evaporation mechanism (2) and the condensation mechanism (2013), and the left side of the cover mechanism (3) is provided with a through hole, which is provided with two, and the two through holes are located at upper and lower positions of the partition assembly (2012); The through hole in the cover mechanism (3) is inserted with a wind pipe assembly (3013), the main body of the wind pipe assembly (3013) is a hollow structure, a magnetic limiting plate (3014) is fixedly connected to the left side surface of the wind pipe assembly (3013), the diameter of the magnetic limiting plate (3014) is greater than that of the wind pipe assembly (3013), the magnetic limiting plate (3014) is used for being adsorbed and connected with the left end surface of the cover mechanism (3), and the magnetic limiting plate (3014) is an electromagnet structure generated by electrification; The right side of the wind cylinder assembly (3013) is fixedly connected with a limiting baffle (3015), the limiting baffle (3015) is an annular structure, and the limiting baffle (3015) is used to limit the wind cylinder assembly (3013) from being taken out of the inside of the cover body mechanism (3), and one side of the magnetic limiting plate (3014) close to the cover body mechanism (3) is fixedly connected with a reset assembly (3016), the reset assembly (3016) is a spring structure, and the side of the reset assembly (3016) away from the magnetic limiting plate (3014) is connected with the left end surface of the cover body mechanism (3), and is used to promote the magnetic limiting plate (3014) to move reset to the side away from the cover body mechanism (3).

2. The marine gas-insulated variable frequency centrifugal water chiller as claimed in claim 1, characterized in that: The bottom end surface of the support mechanism (1) is fixedly connected with a support leg assembly (101), the support leg assembly (101) is provided with four, wherein every two longitudinally adjacent support leg assemblies (101) form a group, and the two groups of support leg assemblies (101) are fixedly connected on the bottom end surfaces of the two support mechanisms (1) in opposite directions, and the bottom end surfaces of the two groups of support leg assemblies (101) are fixedly connected with gasket assemblies (1011), and mounting holes are formed at the four corner positions in the inside of the gasket assembly (1011).

3. The marine gas-insulated variable frequency centrifugal water chiller as claimed in claim 2, characterized in that: The outside of the two support mechanisms (1) is fixedly connected with an outer guard plate (1012), the outer guard plate (1012) is provided with two, and the two outer guard plates (1012) are fixedly connected on the front and rear side surfaces of the two support mechanisms (1) in opposite directions, and the front end surface of the outer guard plate (1012) located on the front side is further fixedly connected with a control terminal (1013).

4. The marine gas-insulated variable frequency centrifugal water chiller of claim 1, wherein: The left end surface of the evaporation mechanism (2) is fixedly connected with a hot water inlet pipe (201), and the left end surface of the evaporation mechanism (2) is further fixedly connected with a cold water outlet pipe (2011), the hot water inlet pipe (201) and the cold water outlet pipe (2011) are circularly connected through a copper pipe, and the left side of the condensing mechanism (2013) is further fixedly connected with a cold water inlet pipe (2014) and a hot water outlet pipe (2015).

5. The marine gas-insulated variable frequency centrifugal water chiller of claim 4, wherein: The cold water inlet pipe (2014) and the hot water outlet pipe (2015) are connected through a copper pipe arranged in the condensing mechanism (2013).

6. The marine gas-insulated variable frequency centrifugal water chiller of claim 3, wherein: The front end surface of the outer guard plate (1012) located on the front side is fixedly connected with a connecting bracket (4), and the connecting bracket (4) is a U-shaped structure with a rear one-way opening, and the left side of the connecting bracket (4) is fixedly connected with a variable frequency motor (401), and the inner side of the connecting bracket (4) is further fixedly connected with a hollow shell assembly (4011), and the left and right sides of the inside of the shell assembly (4011) are provided with air bearings (4012), and the output shaft of the variable frequency motor (401) is connected with the air bearings (4012) and located at the inner side of the shell assembly (4011).

7. The marine gas-insulated variable frequency centrifugal water chiller as claimed in claim 6, characterized in that: The right side output shaft of the variable frequency motor (401) is provided with an impeller assembly (4013), which is located inside the housing assembly (4011), and the impeller assembly (4013), the housing assembly (4011) and the variable frequency motor (401) together form a compressor structure, and the front end surface of the connecting bracket (4) is fixedly connected with a gas supply pump (4014), and the rear side of the gas supply pump (4014) is fixedly connected with a gas supply pipe (4015), and the gas supply pipe (4015) is provided with two, and the two gas supply pipes (4015) are connected with the two air bearings (4012) respectively.

8. The marine gas-insulated variable frequency centrifugal water chiller of claim 7, wherein: The bottom end of the housing assembly (4011) is fixedly connected with a suction pipe (4016), which is connected with the evaporation mechanism (2), and the top end of the housing assembly (4011) is fixedly connected with a supply pipe (4017), which is connected with the condensing mechanism (2013) away from the housing assembly (4011), and the right end surface of the right side support mechanism (1) is fixedly connected with a table mechanism (5), and the top end surface of the table mechanism (5) is fixedly connected with an air cooler (501), and the right side of the condensing mechanism (2013) is provided with a condensing outlet pipe (5011) through a water pump, which circulates through the air cooler (501), and the top end of the air cooler (501) is fixedly connected with a flash assembly (5012), and the side of the condensing outlet pipe (5011) away from the condensing mechanism (2013) is connected with the flash assembly (5012), and the top end of the flash assembly (5012) is fixedly connected with a gas supplement pipe (5013), and the side of the gas supplement pipe (5013) away from the flash assembly (5012) is connected with the suction pipe (4016), and the rear side of the flash assembly (5012) is provided with a backflow circulation pipe (5014) through a throttle control valve (5015), and the side of the backflow circulation pipe (5014) away from the throttle control valve (5015) is connected with the evaporation mechanism (2), and the outer circumferential surface of the air duct assembly (3013) is provided with a plurality of air outlet holes (3017) arranged in a ring shape.

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