CN210696569U - Meal heat preservation dining car system based on heat pump technology - Google Patents
Meal heat preservation dining car system based on heat pump technology Download PDFInfo
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- CN210696569U CN210696569U CN201920805732.6U CN201920805732U CN210696569U CN 210696569 U CN210696569 U CN 210696569U CN 201920805732 U CN201920805732 U CN 201920805732U CN 210696569 U CN210696569 U CN 210696569U
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Abstract
The utility model relates to a technical field of food heat preservation equipment indicates a meal heat preservation dining car system based on heat pump technology especially, and heat preservation dining car system includes: the dining car comprises a dining car body, a heat pump circulating system, a control system and a ventilation system; heat pump circulation system includes the compressor that links to each other in proper order through the pipeline, the condenser, electronic expansion valve and evaporimeter, and the compressor, the condenser, electronic expansion valve and evaporimeter constitute the circulation circuit of mutual intercommunication, the utility model discloses utilize air source heat pump circulation system heat preservation meal, also provide good operational environment for the staff simultaneously, heat preservation dining car system possesses the function that keeps warm and cool down the dehumidification simultaneously, the utility model discloses compare with traditional heat preservation platform, the use is safer and more reliable, and the working cost is low, and long service life can keep warm the meal in succession, through control system control heat preservation temperature, utilizes the big characteristics of the specific heat capacity of heat preservation working medium to reduce the temperature fluctuation, can guarantee the tasty degree of meal.
Description
Technical Field
The utility model relates to a technical field of food heat preservation equipment indicates a meal heat preservation dining car system based on heat pump technology especially.
Background
At present, the meal heat preservation measures adopted by a meal room and a fast food cart are that heat is preserved by heating water or gas on a heat preservation platform, an electric heater is also added on the meal heat preservation platform, the heat is directly preserved by electric heating, in addition, for the high-temperature environment of a kitchen, a fan or an air conditioner is needed to ventilate and cool down for the staff in the meal room, and a large amount of energy is consumed in the two processes of meal heat preservation and kitchen cooling; therefore, how to reasonably utilize energy is a key for solving the problems, the heating water heat preservation measures have short heat preservation time and poor heat preservation effect, the replacement of hot water also brings inconvenience to canteen workers, the other electric heating heat preservation measures need to consume a large amount of electric energy, have large energy loss and low heating efficiency, the taste of the meal is also influenced by overhigh temperature, an electric heating element is in direct contact with water in a heat preservation table, safety accidents are easily caused, and a high-temperature kitchen also needs a fan or an air conditioner to work to maintain a comfortable working environment; therefore, the two heat preservation measures not only need to consume a large amount of energy, but also have common heat preservation effect, and do not meet the energy-saving and efficient utilization requirements of the prior art.
Disclosure of Invention
In order to solve the above problems, the present invention aims to disclose a food heat preservation device, and particularly relates to a meal heat preservation dining car system based on heat pump technology.
In order to achieve the above object, the utility model adopts the following technical scheme: a meal heat preservation dining car system based on heat pump technology, the heat preservation dining car system includes: the dining car comprises a dining car body, a heat pump circulating system, a control system and a ventilation system;
the dining car body comprises a box body, a heat preservation table and a food heat preservation basin, wherein a cavity is formed in the box body, a concave water tank is arranged at the top of the box body, the box body and the water tank are in an integrally formed structure, the heat preservation table is in a plate structure matched with the shape of the water tank, the heat preservation table is arranged above the water tank, a plurality of openings with the same specification are arranged on the heat preservation table at intervals so as to place the food heat preservation basin, and a heat preservation cover is arranged on the food heat preservation basin;
the heat pump circulating system comprises a compressor, a condenser, an electronic expansion valve and an evaporator which are sequentially connected through pipelines, the compressor, the condenser, the electronic expansion valve and the evaporator form a mutually communicated circulating loop, the condenser is fixedly arranged in a water tank, and the compressor, the electronic expansion valve and the evaporator are all arranged in a cavity;
the control system comprises a control panel and an information collector which are electrically connected, and the control panel is provided with a temperature control assembly and a heat pump control assembly; the temperature control assembly comprises a temperature regulator, and the heat pump control assembly comprises a control switch for controlling the heat pump circulating system;
ventilation system includes air intake, air exit, air supply passageway and fan, the air supply passageway sets up in the cavity to be linked together through air intake and external environment, the air intake is seted up on box one side lateral wall, the air supply passageway is close to one side installation fan of air intake, the air exit is seted up in one side that the air supply passageway kept away from the air intake.
Preferably, every two adjacent opening junctions on the heat preservation table are provided with a door-type supporting leg, and a permanent magnet is arranged in the door-type supporting leg.
Preferably, the dining car body still includes the LED display board, the display screen at cuboid base up end is installed to the cuboid base and buckle that the LED display board includes flat long form, and wherein the screens of cuboid base up end has been seted up the screens mouth, and the screens bottom is provided with the location and detains, and the screens is detained the buckle through the location and is installed on the screens mouth of screens base, cuboid base bottom is equipped with thin slice magnet, and thin slice magnet passes through magnetic attraction with the permanent magnet in the door-type supporting legs on the heat preservation bench and is connected for the LED display board is connected with the heat preservation bench.
Preferably, the basin is the hollow cuboid structure of upper end open-ended, and the basin bottom surface sets up to the inclined plane, and the basin outer wall is provided with the heat preservation.
Preferably, the inner wall of the water tank is provided with a temperature sensor and a water level sensor which are both electrically connected with the control panel.
Preferably, the upper part of the water tank is connected with a water inlet pipe, the water inlet pipe extends to the outer side edge of the dining car main body, and the water inlet end of the water inlet pipe is connected with a water inlet valve; the bottom of basin is connected with the drain pipe, the drain pipe extends to the outside limit of dining car body, the outlet end of drain pipe connects the outlet valve.
Preferably, the air inlet is provided with a ventilation grid, the air outlet is provided with a net part and a louver mechanism for adjusting the wind direction, the louver mechanism comprises at least one group of movable louvers and linkage pieces penetrating through two ends or the middle part of the movable louvers, and two ends of the movable louvers are hinged on the net part.
Preferably, the dining car body further comprises an access door arranged on the side face of the box body, the access door is arranged on the side wall, away from the air inlet, of the box body, the access door is hinged with the box body, and a door lock and a door handle are arranged on the access door.
Preferably, the dining car body further comprises universal wheels installed at the bottom of the box body, and the universal wheels are provided with locking mechanisms.
Preferably, the condenser comprises a condenser body and a solenoid arranged in the condenser body, and the solenoid is provided with a cooling fin.
The beneficial effects of the utility model are embodied in: the utility model relates to a meal heat preservation dining car system based on heat pump technology, which provides a good working environment for workers when using an air source heat pump circulation system to preserve heat, the heat preservation dining car system absorbs heat in the air, improves heat production quantity, reduces the temperature of the environment, provides a good working environment for the dining room workers, in addition, the temperature can be reduced and the dehumidification can be realized, when the temperature of the environment is reduced, the relative humidity in the air is reduced, thereby the dehumidification effect can be achieved, the system uses medium for heat exchange, the electric appliance is not in direct contact with water, the danger generated by an electric water leakage device can be avoided, the utility model discloses a device is movable, the inconvenience brought when the dining room workers clean the device and the dining room working environment can be solved, after the work of a heat preservation platform is completed, the residual hot water can also be applied to other aspects of the dining room, realize the multistage utilization of the energy, compare with traditional heat preservation platform the utility model discloses use safe and reliable.
Drawings
Figure 1 is a schematic structural diagram of the heat-preservation dining car system of the utility model.
Figure 2 is the structure sketch of the utility model discloses heat preservation dining car system condenser.
Fig. 3 is a simplified structure of the shutter mechanism of the heat-preservation dining car system of the utility model.
Fig. 4 is a simplified structure diagram of the LED display board of the heat-preservation dining car system of the utility model.
Figure 5 is a top view of the water tank of the heat preservation dining car system of the utility model.
Reference is made to the accompanying drawings in which:
1-compressor, 2-condenser, 3-water tank, 4-electronic expansion valve, 5-evaporator, 6-air inlet, 7-fan, 8-air outlet, 9-water inlet valve, 10-water outlet valve, 11-access door, 12-universal wheel, 13-heat insulation layer, 14-dining car body, 15-box, 16-cavity, 17-air supply channel, 18-water inlet pipe, 19-water outlet pipe, 20-temperature sensor, 21-water level sensor, 22-net part, 23-shutter mechanism, 24-movable shutter, 25-linkage, 26-control panel, 27-heat insulation table, 28-LED display board, 29-sheet magnet, 30-permanent magnet and 31-door type supporting foot.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
the utility model provides a meal heat preservation dining car system based on heat pump technology, heat preservation dining car system includes: the dining car comprises a dining car body 14, a heat pump circulating system, a control system and a ventilation system;
the dining car body 14 comprises a box body 15, an LED display board 28, a heat preservation platform 27 and a food heat preservation basin, wherein a cavity is formed in the box body, a concave water tank 3 is arranged at the top of the box body, the box body 15 and the water tank 3 are of an integrally formed structure, the heat preservation platform 27 is of a plate type structure matched with the shape of the water tank 3, the heat preservation platform 27 is arranged above the water tank 3, a plurality of openings with the same specification are arranged on the heat preservation platform 27 at intervals so as to place the food heat preservation basin, and preferably, a heat preservation cover is arranged on the food heat preservation basin; a gate-type supporting leg 31 is arranged at the joint of every two adjacent openings on the heat preservation table 27, and a permanent magnet 30 is arranged in each gate-type supporting leg 31;
the LED display board 28 comprises a flat and long cuboid base and a display screen which is installed on the upper end face of the cuboid base in a buckling mode, wherein a clamping position opening is formed in the upper end face of the cuboid base, a positioning buckle is arranged at the bottom of the display screen, the display screen is installed on the clamping position opening of the cuboid base through the positioning buckle in a buckling mode, a sheet magnet 29 is arranged at the bottom of the cuboid base, the sheet magnet 29 is connected with a permanent magnet 30 through magnetic attraction, the LED display board 28 is connected with a heat preservation table 27 and is convenient to detach and replace, the LED display board 28 can display dish information, and display contents include but are not limited to sequence numbers, dish names and prices;
the heat pump circulating system comprises a compressor 1, a condenser 2, an electronic expansion valve 4 and an evaporator 5 which are sequentially connected through pipelines, wherein the compressor 1, the condenser 2, the electronic expansion valve 4 and the evaporator 5 form a mutually communicated circulating loop; the condenser 2 is fixedly arranged in the water tank 3, the condenser 2 is in direct contact with a cooling medium in the water tank 3, the heat loss of hot water in the pipeline conveying process can be reduced, the heat preservation efficiency is improved, the compressor 1, the electronic expansion valve 4 and the evaporator 5 are all arranged in the cavity 16, the working medium gas enters the compressor 1 and is compressed into high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser 2 through a pipeline, the high-temperature high-pressure gas exchanges heat with the cooling medium in the water tank 3 through the condenser 2, and therefore the temperature of the cooling medium is improved, in the embodiment, the working medium gas can be an air source of the external environment or a refrigerant in the compressor 1, the cooling medium is preferably water, the cooling medium is not limited to water, the cooling medium can also be other liquid, and the high-temperature high-pressure, the low-temperature working medium is discharged from the outlet of the condenser 2, enters the evaporator 5 after being throttled and depressurized by the electronic expansion valve 4, and exchanges heat with the air in the cavity 16 through the evaporator 5, so that the temperature of the air in the cavity 16 is reduced, and the air in the cooled cavity 16 exchanges heat with the air in the external environment through forced convection by the ventilation system, so that the temperature of the external environment is reduced, a good working environment is provided for canteen workers, and when the temperature of the environment is reduced, the relative humidity in the air is reduced, therefore, the heat-preservation dining car system can also achieve the effects of cooling and dehumidifying;
the ventilation system comprises an air inlet 6, an air outlet 8, an air supply channel 17 and a fan 7, wherein the air supply channel 17 is arranged in a cavity 16 and communicated with the external environment through the air inlet 6, the air inlet 6 is arranged on the side wall of one side of a box body 15, the fan 7 is arranged on one side of the air supply channel 17 close to the air inlet 6, the air outlet 8 is arranged on one side of the air supply channel 17 far away from the air inlet 6, a ventilation grid is arranged at the air inlet 6, a net-shaped part 22 and a louver mechanism 23 for adjusting the wind direction are arranged at the air outlet 8, the louver mechanism 23 comprises at least one group of movable louvers 24 and linkage pieces 25 penetrating through two ends or the middle part of the movable louvers 24;
the control system comprises a control panel 26 and an information collector which are electrically connected, in the embodiment, a display screen is arranged on the control panel 26 and can display temperature, and the control panel 26 is also provided with a temperature control assembly and a heat pump control assembly; the temperature control assembly comprises a temperature adjusting knob and an indicator light, and the heat pump control assembly comprises a control switch for controlling the heat pump circulating system and a fan controller; furthermore, a temperature sensor 20 and a water level sensor 21 are arranged on the inner wall of the water tank 3 and are electrically connected with a control panel 26, the temperature of the heat preservation water of the dining car is set through a temperature adjusting knob on the control panel 26, a heat pump circulating system is started to heat, the temperature sensor 20 feeds water temperature information back to a temperature control assembly, when the water temperature reaches a set value, the heat pump circulating system stops working, when the water temperature is lower than the set value, the heat pump circulating system continues working, the water level sensor 21 monitors the water level condition at any time because the water is heated and is easy to evaporate, and feeds the water level condition back to the control panel 26, a worker can check the water level condition at any time through the control panel 26, water can be added in time when the; when the heat pump circulating system stops working, the fan 7 can still be opened or closed through the control panel to supply air for workers; the information collector collects data of various internal and external factors of the heat preservation table by using an internet of things wireless sensor network, wireless communication is adopted, operation is simple, the information collector has a network memory function, network reorganization is not needed when power is off and restarted, data are automatically uploaded to the cloud server, the cloud server can provide real-time and historical data for a user, the user can analyze energy utilization conditions and equipment use conditions according to the collected data, operation of equipment is optimized, and faults can be predicted according to the data; the information acquisition unit records various information including the use duration of the heat preservation dining car system, the change condition of the temperature of the heat preservation water, the environmental temperature, the temperature of the air outlet, the air speed of the air outlet and the like, and the acquired data can provide a basis for the optimized operation and the operation maintenance of a user;
in this embodiment, the water tank 3 is a hollow cuboid structure with an opening at the upper end, preferably, the bottom surface of the water tank 3 is provided with an inclined surface, the inclined surface of the bottom surface of the water tank 3 is favorable for discharging residual liquid after the work is finished, and the outer wall of the water tank 3 is provided with the heat preservation layer 13, so that the temperature in the water tank 3 can be effectively maintained, and the energy consumption is reduced; furthermore, the upper part of the water tank 3 is connected with a water inlet pipe 18, the water inlet pipe 18 extends to the outer side edge of the dining car main body, the water inlet end of the water inlet pipe 18 is connected with a water inlet valve 9, and the water inlet valve can be connected with a water supply device, such as a water tap and the like, for adding liquid; the bottom of the sink 3 is connected with a drain pipe 19, the drain pipe 19 extends to the outer side edge of the dining car body 14, the water outlet end of the drain pipe 19 is connected with a water outlet valve 10, and a water device such as a basin, a bucket and the like can be connected below the water outlet valve so as to recycle hot water;
in this embodiment, the dining car body 14 further comprises an access door 11 arranged on the side surface of the box body 15, the access door 11 is arranged on the side wall of the box body 15 far away from the air inlet 6, the access door 11 is hinged with the box body 15, and a door lock and a door handle are arranged on the access door 11; in order to facilitate transportation of the heat-preservation dining car, meanwhile facilitate cleaning of devices for canteen workers and facilitate cleaning of the ground, the dining car body 14 further comprises universal wheels 12 mounted at the bottom of the box body 15 and facilitating movement, the universal wheels 12 are provided with locking mechanisms, and the locking mechanisms are opened when the dining car needs to be fixed;
the heat obtained by the heat pump circulating system comprises the heat absorbed from the environment and the heat generated by the work done by the compressor 1, that is, under the condition of consuming the same electric energy, the system can absorb the heat energy which is about four times of the electric energy to produce the hot water with the same heat, the electricity consumption of the air source heat pump circulating system is one fourth of that of the ordinary electric heating heat preservation platform 27, compared with the traditional heat preservation platform 27, the heat preservation dining car system of the utility model has safer and more reliable use process, no pollutant discharge, low operation cost, long service life, capability of absorbing the heat in the air and continuously preserving the heat of the meal, the heat preservation temperature is not more than 70 ℃ through the control system, the delicious degree of the meal can be well ensured, because the system exchanges heat through the medium, the electric appliance is not in direct contact with the water, the danger caused by the electric leakage of the electric heater can be avoided, after the work of, the residual hot water can also be applied to other aspects of the canteen, such as cleaning dining cars, cleaning floors and the like, and the hot water has stronger dirt removing capability, is beneficial to reducing the use of detergents, further protects the environment and realizes the multi-stage utilization of energy;
a working method of a meal heat preservation dining car system based on a heat pump technology comprises the following steps:
s1, opening the water inlet valve 9, and adding a cooling medium into the water tank 3;
s2, setting the temperature through a temperature regulator;
s3, starting a heat pump circulating system through the heat pump control assembly, and enabling working medium gas to enter the compressor 1 and be compressed into high-temperature and high-pressure gas;
s4, enabling the high-temperature high-pressure gas to enter the condenser 2 through a pipeline, enabling the condenser 2 to be in direct contact with the cooling medium in the water tank 3, enabling the high-temperature high-pressure gas to be in heat exchange with the cooling medium in the water tank 3 through the condenser 2, and accordingly increasing the temperature of the cooling medium, and enabling the cooling medium in the water tank 3 to absorb heat to form the high-temperature medium;
s5, cooling the high-temperature and high-pressure gas into a low-temperature working medium after heat exchange is carried out on the high-temperature and high-pressure gas by the condenser 2;
s6, discharging the low-temperature working medium from the outlet of the condenser 2, throttling and depressurizing through the electronic expansion valve 4, and then entering the evaporator 5;
s7, the low-temperature working medium exchanges heat with the air in the cavity 16 through the evaporator 5, so that the temperature of the air in the cavity 16 is reduced;
s8, performing forced convection heat exchange between the air in the cooled cavity 16 and the air in the external environment through a ventilation system, so that the temperature of the external environment is reduced;
s9, the low-temperature working medium is heated after heat exchange with the air in the cavity 16 through the evaporator 5;
s10, the low-temperature working medium is heated and then enters the compressor 1 again to form a circulation loop, heat in the air of the external environment is continuously transferred to the water tank 3, the air temperature of the external environment is also continuously reduced in the circulation process, and the purpose of reducing the temperature of the working environment is achieved.
The above, it is only the preferred embodiment of the present invention, not right the technical scope of the present invention makes any restriction, the technical personnel of the industry, under this technical scheme's enlightenment, can do some deformation and modification, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of the above embodiment do, all still belong to the technical scheme's scope of the present invention.
Claims (10)
1. A meal heat preservation dining car system based on heat pump technology, its characterized in that, heat preservation dining car system includes: the dining car comprises a dining car body, a heat pump circulating system, a control system and a ventilation system;
the dining car body comprises a box body, a heat preservation table and a food heat preservation basin, wherein a cavity is formed in the box body, a concave water tank is arranged at the top of the box body, the box body and the water tank are in an integrally formed structure, the heat preservation table is in a plate structure matched with the shape of the water tank, the heat preservation table is arranged above the water tank, a plurality of openings with the same specification are arranged on the heat preservation table at intervals so as to place the food heat preservation basin, and a heat preservation cover is arranged on the food heat preservation basin;
the heat pump circulating system comprises a compressor, a condenser, an electronic expansion valve and an evaporator which are sequentially connected through pipelines, the compressor, the condenser, the electronic expansion valve and the evaporator form a mutually communicated circulating loop, the condenser is fixedly arranged in a water tank, and the compressor, the electronic expansion valve and the evaporator are all arranged in a cavity;
the control system comprises a control panel and an information collector which are electrically connected, and the control panel is provided with a temperature control assembly and a heat pump control assembly; the temperature control assembly comprises a temperature regulator, and the heat pump control assembly comprises a control switch for controlling the heat pump circulating system;
ventilation system includes air intake, air exit, air supply passageway and fan, the air supply passageway sets up in the cavity to be linked together through air intake and external environment, the air intake is seted up on box one side lateral wall, the air supply passageway is close to one side installation fan of air intake, the air exit is seted up in one side that the air supply passageway kept away from the air intake.
2. The meal heat preservation dining car system based on heat pump technology of claim 1, characterized in that every two adjacent opening junctions on the heat preservation platform are provided with door-type supporting feet, and permanent magnets are installed in the door-type supporting feet.
3. The meal heat preservation dining car system based on heat pump technology of claim 1 or 2, characterized in that, the dining car body still includes the LED display board, the LED display board includes that the cuboid base of flat long form and buckle install the display screen at cuboid base up end, wherein the screens mouth has been seted up to cuboid base up end, and the display screen bottom is provided with the location and buckles, and the display screen is buckled the buckle through the location and is installed on the screens mouth of cuboid base, cuboid base bottom is equipped with thin slice magnet, and thin slice magnet passes through magnetic attraction with the permanent magnet in the door-type supporting legs on the heat preservation bench and is connected for the LED display board is connected with the heat preservation bench.
4. The heat pump technology-based meal thermal insulation dining car system according to claim 1, wherein the water tank is a hollow cuboid structure with an open upper end, the bottom surface of the water tank is provided with an inclined surface, and the outer wall of the water tank is provided with an insulation layer.
5. The meal heat preservation dining car system based on heat pump technology as claimed in claim 4, wherein the temperature sensor and the water level sensor arranged on the inner wall of the water tank are both electrically connected with the control panel.
6. The meal heat-preservation dining car system based on the heat pump technology as claimed in claim 4, wherein a water inlet pipe is connected to the upper part of the water tank, the water inlet pipe extends to the outer side edge of the dining car body, and the water inlet end of the water inlet pipe is connected with a water inlet valve; the bottom of basin is connected with the drain pipe, the drain pipe extends to the outside limit of dining car body, the outlet end of drain pipe connects the outlet valve.
7. The meal heat-preservation dining car system based on the heat pump technology as claimed in claim 1, wherein a ventilation grid is arranged at the air inlet, a net-shaped part and a louver mechanism for adjusting the wind direction are arranged at the air outlet, the louver mechanism comprises at least one set of movable louvers and linkage members penetrating through two ends or the middle part of the movable louvers, and two ends of the movable louvers are hinged on the net-shaped part.
8. The meal heat preservation dining car system based on heat pump technology as claimed in claim 1, wherein the dining car body further comprises an access door arranged on the side wall of the box body far away from the air inlet, the access door is hinged with the box body, and a door lock and a door handle are arranged on the access door.
9. The meal heat preservation dining car system based on heat pump technology of claim 8, wherein the dining car body further comprises universal wheels installed at the bottom of the box body, and the universal wheels are provided with locking mechanisms.
10. A meal warming cart system based on heat pump technology as claimed in claim 1, wherein said condenser comprises a condenser body and a solenoid disposed within the condenser body, said solenoid having heat sink fins disposed thereon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920805732.6U CN210696569U (en) | 2019-05-31 | 2019-05-31 | Meal heat preservation dining car system based on heat pump technology |
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| CN201920805732.6U CN210696569U (en) | 2019-05-31 | 2019-05-31 | Meal heat preservation dining car system based on heat pump technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819622A (en) * | 2021-08-31 | 2021-12-21 | 青岛海尔空调器有限总公司 | Air conditioner control method and system and air conditioner |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819622A (en) * | 2021-08-31 | 2021-12-21 | 青岛海尔空调器有限总公司 | Air conditioner control method and system and air conditioner |
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