CN215260185U - Utilize dew point temperature refrigerated dual cycle off-premises station and refrigerating system - Google Patents
Utilize dew point temperature refrigerated dual cycle off-premises station and refrigerating system Download PDFInfo
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- CN215260185U CN215260185U CN202120772267.8U CN202120772267U CN215260185U CN 215260185 U CN215260185 U CN 215260185U CN 202120772267 U CN202120772267 U CN 202120772267U CN 215260185 U CN215260185 U CN 215260185U
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Abstract
The utility model discloses an utilize dew point temperature refrigerated dual cycle off-premises station and refrigerating system relates to the refrigeration plant field, and the dual cycle off-premises station realizes improving the effect of refrigeration efficiency through the improvement to the condenser, and its condensation process of condenser after improving specifically does: the outdoor air carries out the cooling of waiting wetly through the surface cooler, and the temperature of outdoor air can be close to the coolant temperature this moment, and then, outdoor air is through spraying the heat exchanger, and the coolant blowout that the heat exchanger will pass through the runner sprays, and at this moment, outdoor air and coolant contact carry out the isenthalpic cooling (humidity increases, and the temperature reduces), and outdoor air at this moment has been close air dew point temperature, and finally outdoor air and first condenser pipe heat transfer accomplish the cooling to refrigerant in the condenser pipe. Wherein, carry out the secondary cooling to outdoor air through surface cooler and spray heat exchanger, improved the air cooling efficiency of dual cycle outdoor unit.
Description
Technical Field
The utility model relates to an off-premises station technical field especially relates to an utilize cryogenic dual cycle off-premises station of dew point temperature and refrigerating system.
Background
At present, with the popularization of energy-saving and environment-friendly concepts, people are pursuing refrigeration equipment with energy saving or low power consumption. Wherein the condenser is capable of converting gas or vapor to liquid and transferring heat from the refrigerant passing through the evaporator to the air adjacent the condenser tube in a rapid manner. The condenser in the prior art mainly cools the refrigerant in the condenser pipe through outdoor air, but only circulates the outdoor air through the condenser pipe through the fan, so that the cooling efficiency is limited, and the heat exchange efficiency is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize dew point temperature refrigerated dual cycle outdoor unit and refrigerating system, solve the problem that present condenser heat exchange efficiency is low.
To achieve the purpose, the utility model adopts the following technical proposal:
a dual cycle outdoor unit cooled by dew point temperature comprises a condenser body; the condenser body is provided with an air inlet and an air outlet, and an air flow channel is formed between the air inlet and the air outlet.
In the airflow channel, a surface cooler, a spraying heat exchanger, a first condensation pipeline and a fan are sequentially arranged along the flowing direction of air.
The surface air cooler is communicated with the spray heat exchanger, a flow channel is arranged in the surface air cooler, cooling liquid flows in the flow channel, one end of the flow channel is communicated with the spray heat exchanger, the other end of the flow channel is communicated with a pump body unit, and the pump body unit is used for pumping the cooling liquid to the flow channel.
Optionally, the spray heat exchanger comprises a spray device and a filler, and the spray device is used for spraying cooling liquid into the filler.
Optionally, a liquid receiving disc is arranged on one side, away from the spraying device, of the filler, and the liquid receiving disc is communicated with the pump body unit.
Optionally, the pump body unit is communicated with a water-cooled condenser.
And a cooling liquid pipeline for circulating the cooling liquid and a second condensation pipeline for exchanging heat with the cooling liquid are arranged in the water-cooled condenser.
Optionally, a liquid replenishing port is arranged on the wall surface of the liquid receiving disc, and the liquid replenishing port is communicated with a liquid replenishing valve for introducing external liquid.
Optionally, the pump body unit comprises two circulation pumps; the two circulating pumps are connected in parallel.
Optionally, the cooling liquid is water.
A refrigerating system comprises an evaporator and a double-circulation outdoor unit which is cooled by dew point temperature; an evaporation outlet of the evaporator is communicated with the first condensation pipeline; the first condensing duct communicates with the second condensing duct.
A refrigerating system comprises an evaporator and a double-circulation outdoor unit which is cooled by dew point temperature, wherein the evaporator is communicated with the double-circulation outdoor unit.
Compared with the prior art, the utility model discloses following beneficial effect has:
the dual-cycle outdoor unit and the refrigeration system cooled by the dew point temperature provided by the embodiment specifically perform the condensation process of the first condensation pipeline as follows: the outdoor air carries out the cooling of waiting wetly through the surface cooler, and the temperature of outdoor air can be close to the coolant temperature this moment, and then, outdoor air is through spraying the heat exchanger, and the coolant blowout that the heat exchanger will pass through the runner sprays, and at this moment, outdoor air and coolant contact carry out the isenthalpic cooling (humidity increases, and the temperature reduces), and outdoor air at this moment has been close air dew point temperature, and finally outdoor air and first condenser pipe heat transfer accomplish the cooling to refrigerant in the condenser pipe. Wherein, carry out the secondary cooling to outdoor air through surface cooler and spray heat exchanger, improved the air cooling efficiency of dual cycle outdoor unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
Fig. 1 is a schematic view of an overall structure of a dual cycle outdoor unit cooled by dew point temperature according to an embodiment of the present invention.
Fig. 2 is a state diagram of a dual cycle outdoor unit cooled by dew point temperature according to a first embodiment of the present invention.
Fig. 3 is a pipeline structure diagram of a refrigeration system according to a second embodiment of the present invention.
Illustration of the drawings: 1. an air inlet; 2. an air outlet; 31. a surface cooler; 32. spraying a heat exchanger; 321. a spraying device; 322. a filler; 33. a first condensing duct; 34. a fan; 35. a pump body unit; 36. a water-cooled condenser; 361. a coolant line; 362. a second condensing conduit; 37. a fluid replenishing valve; 38. a liquid receiving disc; 41. a first check valve; 42. a second one-way valve; 43. a third check valve; 5. an evaporator; 61. a refrigerant pump; 62. a compressor; 63. a liquid storage tank; 7. an electromagnetic valve; 81. a pressure sensor; 82. a temperature sensor; 83. an electronic expansion valve.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 3, fig. 1 is a schematic diagram illustrating an overall structure of a dual-cycle outdoor unit cooled by dew point temperature according to a first embodiment of the present invention, fig. 2 is a diagram illustrating a state change of the dual-cycle outdoor unit cooled by dew point temperature according to a first embodiment of the present invention, and fig. 3 is a diagram illustrating a pipeline structure of a refrigeration system according to a second embodiment of the present invention.
Example one
The dual-cycle outdoor unit cooled by the dew point temperature provided by the embodiment is mainly used in a refrigeration scene, can be used as a heat exchange element between a refrigeration system and the environment, and has the characteristic of high heat exchange efficiency through the improvement of the internal structure of the dual-cycle outdoor unit.
As shown in fig. 1, the dual cycle outdoor unit cooled by the dew point temperature of the present embodiment includes a condenser body; an air inlet 1 and an air outlet 2 are arranged on the condenser body, and an air flow channel is formed between the air inlet 1 and the air outlet 2.
In the airflow channel, a surface air cooler 31, a spray heat exchanger 32, a first condensing pipeline 33 and a fan 34 are sequentially arranged along the flowing direction of air.
The surface air cooler 31 is communicated with the spray heat exchanger 32, a flow channel is arranged in the surface air cooler 31, cooling liquid flows through the flow channel, one end of the flow channel is communicated with the spray heat exchanger 32, the other end of the flow channel is communicated with the pump body unit 35, and the pump body unit 35 is used for pumping the cooling liquid to the flow channel.
Further, as shown in fig. 1 and fig. 2, the condensation process for the first condensation duct 33 specifically includes: the outdoor air is cooled by the surface air cooler 31 in an equal humidity mode, the temperature of the outdoor air can be close to the temperature of cooling liquid (point 2 in fig. 2), then the outdoor air passes through the spraying heat exchanger 32, the spraying heat exchanger 32 sprays the cooling liquid passing through the flow channel, at the moment, the outdoor air is in contact with the cooling liquid to carry out equal enthalpy cooling (the humidity is increased, the temperature is reduced), the outdoor air at the moment is close to the air dew point temperature (point 3 in fig. 2), finally, the outdoor air exchanges heat with the first condensation pipeline 33, and the cooling of the refrigerant in the condensation pipe is completed. Wherein, the secondary cooling is carried out to the outdoor air through the surface air cooler 31 and the spray heat exchanger 32, and the air cooling efficiency of the double-circulation outdoor unit is improved.
In one embodiment, the spray heat exchanger 32 includes a spray device 321 and a packing 322, and the spray device 321 is used for spraying the cooling liquid into the packing. The filler 322 may be asbestos, wet film, polymer plastic, etc., and is used for absorbing water, evaporating, cooling, and prolonging the contact time between the cooling liquid and air. In an alternative embodiment, the outlets of the cooling liquid pipes 361 of the water-cooled condenser 36 are respectively connected to the two spraying devices 321, and are mixed with the cooling liquid in the flow channel of the surface cooler 31 and then sprayed into the packing 322.
Further, a liquid receiving disc 38 is arranged on one side of the filler 322 far away from the spraying device 321, and the liquid receiving disc 38 is communicated with the pump body unit 35. The liquid receiving plate 38 helps to recover the cooling liquid, and the loss of the cooling liquid is reduced.
Further, the pump body unit 35 is communicated with a water-cooled condenser 36.
A coolant line 361 for flowing a coolant and a second condensing line 362 for exchanging heat with the coolant are provided in the water-cooled condenser 36.
In an alternative embodiment, the water cooled condenser 36 may be in the form of a plate heat exchanger, a double tube heat exchanger, a shell and tube heat exchanger, or the like.
In an alternative embodiment, the cooling fluid is water.
The dual-cycle outdoor unit of the embodiment realizes air cooling heat dissipation through the first condensing pipe 33, and liquid cooling heat dissipation through the second condensing pipe 362, so that an environmental cold source is fully utilized; the specific heat exchange process comprises an air cooling heat dissipation process and a water cooling heat dissipation process; the air cooling and heat dissipation process is the same as the above; the liquid cooling heat dissipation process is as follows: the state of water in the liquid receiving tray 38 is in a state a in fig. 2, the water flows through a cooling liquid pipeline 361 in the water-cooled condenser 36 through the pump body unit 35 to complete cooling of the second condensing pipeline 362, and then the water is conveyed to the surface cooler 31, indirectly exchanges heat with outdoor air, then is heated to a state B in fig. 2, and then is fully contacted with air again in the packing 322 through the spraying device 321, so that the water is evaporated to absorb heat, is cooled to the state a, and then flows to the liquid receiving tray 38. Wherein, the temperature difference in the water cooling heat dissipation process is less than the temperature difference in the air cooling heat dissipation process.
Further, a liquid replenishing port is provided in a wall surface of the liquid receiving tray 38, and a liquid replenishing valve 37 for introducing an external liquid is communicated with the liquid replenishing port.
Specifically, the pump body unit 35 includes two circulation pumps; the two circulation pumps are connected in parallel. When any circulating pump can not work, the other circulating pump can still work normally, and the stability of the double-circulation outdoor unit is improved.
In summary, the dual cycle outdoor unit provided in this embodiment can improve the refrigeration efficiency of the refrigeration system, can fully utilize the outdoor cold source, and further has the characteristics of high air cooling efficiency and high water cooling efficiency.
Example two
As shown in fig. 3, the refrigeration system of the present embodiment includes an evaporator 5 and a dual cycle outdoor unit cooled by a dew point temperature as in the first embodiment; the evaporation outlet of the evaporator 5 is communicated with the first condensation pipeline 33; the first condensing duct 33 communicates with the second condensing duct 362. The refrigerant can be sequentially cooled by the first condensation pipeline 33 and the second condensation pipeline 362 after passing through the evaporator 5, so that an outdoor cold source can be fully utilized, and the effects of energy conservation and environmental protection are achieved.
It should be noted that a compressor 62 is further communicated between the evaporator 5 and the dual-cycle outdoor unit, an inlet of the compressor 62 is communicated with the electromagnetic valve 7, an outlet of the compressor 62 is communicated with a third check valve 43, and outlet ends of the evaporator 5 and the third check valve 43 are connected in parallel with a second check valve 42; additionally, the inlet of the dual cycle outdoor unit is connected with a pressure sensor 81, and the refrigeration system further comprises a temperature sensor 82, so that the refrigeration system can adjust the control modes of the electromagnetic valve 7 and the compressor 62 conveniently.
Further, a liquid storage tank 63 and a refrigerant pump 61 are communicated between the second condensation pipeline 362 and the evaporator 5, wherein the refrigerant pump 61 is connected with the first check valve 41 in parallel; the first check valve 41 is used for preventing the refrigerant from flowing back to the liquid storage tank 63; the inlet of the evaporator 5 is connected to an electronic expansion valve 83.
In conclusion, the refrigeration system provided by the embodiment can make full use of an outdoor cold source, and has the characteristics of high cooling efficiency, energy conservation, environmental protection and the like.
EXAMPLE III
The present embodiment provides a refrigeration system, which includes an evaporator 5 and a dual cycle outdoor unit cooled by a dew point temperature as in the first embodiment, wherein the evaporator 5 is in communication with the dual cycle outdoor unit. The first embodiment describes a specific structure and technical effects of the dual-cycle outdoor unit, and the refrigeration system of the present embodiment employs the structure, and also has the technical effects. For example, the number of the evaporators 5 may also be two, and two sets of independent condensation pipes (i.e., the first condensation pipe 33 and the second condensation pipe 362 in the first embodiment) are arranged in the dual-cycle outdoor unit, and the two sets of condensation pipes may be respectively connected to evaporators of two sets of refrigeration systems, that is, may be connected to evaporators of two sets of independent compression refrigeration systems (i.e., the internal structures of the two sets of compression refrigeration systems may be the same), or may be connected to evaporators of two sets of different refrigeration systems (implemented by different combinations of a fluorine pump, a heat pipe, and a compressor, for example, one set of refrigeration system may use the fluorine pump as a drive of a refrigeration cycle, and the other set of refrigeration system may use the compressor as a drive of a refrigeration cycle), which is not particularly limited.
In conclusion, the refrigeration system provided by the embodiment can make full use of an outdoor cold source, and has the characteristics of high cooling efficiency, energy conservation, environmental protection and the like.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A dual cycle outdoor unit cooled by dew point temperature is characterized by comprising a condenser body; an air inlet (1) and an air outlet (2) are formed in the condenser body, and an air flow channel is formed between the air inlet (1) and the air outlet (2);
a surface air cooler (31), a spray heat exchanger (32), a first condensation pipeline (33) and a fan (34) are sequentially arranged in the airflow channel along the flowing direction of air;
the surface air cooler (31) is communicated with the spray heat exchanger (32), a flow channel is arranged in the surface air cooler (31), cooling liquid flows in the flow channel, one end of the flow channel is communicated with the spray heat exchanger (32), the other end of the flow channel is communicated with a pump body unit (35), and the pump body unit (35) is used for pumping the cooling liquid to the flow channel.
2. The outdoor unit of claim 1, wherein the shower heat exchanger (32) comprises a shower unit (321) and a packing (322), and the shower unit (321) is used to spray the cooling liquid into the packing.
3. The outdoor unit of claim 2, wherein a liquid receiving plate (38) is provided at a side of the packing (322) away from the spray unit (321), and the liquid receiving plate (38) is communicated with the pump unit (35).
4. The outdoor unit of claim 3, wherein the pump unit (35) is connected to a water-cooled condenser (36);
and a cooling liquid pipeline (361) for circulating the cooling liquid and a second condensing pipeline (362) for exchanging heat with the cooling liquid pipeline (361) are arranged in the water-cooled condenser (36).
5. The outdoor unit of claim 4, wherein the liquid receiving plate 38 has a liquid supply port on a wall surface thereof, and the liquid supply port is connected to a liquid supply valve 37 for introducing an external liquid.
6. The outdoor unit of claim 1, wherein the pump unit (35) comprises two circulation pumps; the two circulating pumps are connected in parallel.
7. The outdoor unit of any one of claims 1 to 6, wherein the cooling liquid is water.
8. A refrigerating system comprising an evaporator (5) and the dual cycle outdoor unit of claim 4 cooled by a dew point temperature; an evaporation outlet of the evaporator (5) is communicated with the first condensation pipeline (33); the first condensation duct (33) communicates with the second condensation duct (362).
9. A refrigerating system comprising an evaporator (5) and a dual cycle outdoor unit cooled by a dew point temperature according to any one of claims 1 to 7, wherein the evaporator (5) is in communication with the dual cycle outdoor unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120772267.8U CN215260185U (en) | 2021-04-15 | 2021-04-15 | Utilize dew point temperature refrigerated dual cycle off-premises station and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120772267.8U CN215260185U (en) | 2021-04-15 | 2021-04-15 | Utilize dew point temperature refrigerated dual cycle off-premises station and refrigerating system |
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| CN215260185U true CN215260185U (en) | 2021-12-21 |
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| CN202120772267.8U Active CN215260185U (en) | 2021-04-15 | 2021-04-15 | Utilize dew point temperature refrigerated dual cycle off-premises station and refrigerating system |
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