阅读说明：本技术 一种移动式液冷源的散热器调控装置及调控方法 (Mobile liquid cold source radiator regulation and control device and regulation and control method ) 是由 王赞社 顾兆林 冯诗愚 高秀峰 李云 陈美娟 王宇威 于 2021-09-29 设计创作，主要内容包括：本发明公开了一种移动式液冷源的散热器调控装置及调控方法,包括制冷系统和液冷源系统；制冷系统由依次连通的制冷压缩机、冷凝散热器、制冷剂储液器、蒸发器和气液分离器构成制冷循环回路；液冷源系统由液冷剂箱连通蒸发器构成蒸发循环回路,以及由液冷剂箱连通冷凝散热器构成自然散热循环回路。液冷源的冷却由制冷系统冷却和外界自然风能源冷却,两类冷却共用一套冷凝散热器,冷凝散热器中两路独立管束间隔交替布置。本发明减小了系统的体积重量,增强了紧凑性；能耗小,冷源温度不易波动；利用外界自然能源实现系统的节能和液冷源的稳定输出。(The invention discloses a radiator regulating device and a regulating method of a movable liquid cold source, which comprises a refrigerating system and a liquid cold source system; the refrigeration system is composed of a refrigeration compressor, a condensation radiator, a refrigerant liquid storage device, an evaporator and a gas-liquid separator which are sequentially communicated to form a refrigeration cycle loop; the liquid cold source system is characterized in that the liquid cold source system is an evaporation circulation loop formed by connecting the liquid cold agent box with the evaporator, and a natural heat dissipation circulation loop formed by connecting the liquid cold agent box with the condensation radiator. The liquid cold source is cooled by a refrigerating system and is cooled by external natural wind energy, the two types of cooling share one set of condensing radiator, and two independent tube bundles in the condensing radiator are alternately arranged at intervals. The invention reduces the volume and weight of the system and enhances the compactness; the energy consumption is low, and the cold source temperature is not easy to fluctuate; and the energy conservation of the system and the stable output of the liquid cooling source are realized by utilizing external natural energy.)

1. A radiator regulation and control method of a mobile liquid cold source is characterized by comprising a refrigeration system and a liquid cold source system;

the refrigeration system is composed of a refrigeration compressor, a condensation radiator, a refrigerant liquid storage device, an evaporator and a gas-liquid separator which are sequentially communicated to form a refrigeration cycle loop;

the liquid cold source system is characterized in that a liquid coolant box is communicated with an evaporator to form an evaporation circulation loop, and the liquid coolant box is communicated with a condensation radiator to form a natural heat dissipation circulation loop;

let T₀Is ambient temperature, T₁Stabilizing the output temperature for the liquid coolant;

when T is₀＜T₁Cooling the liquid refrigerant by utilizing outdoor natural wind energy at the temperature of minus 5 ℃; the refrigeration cycle loop is closed, and the condensing radiator operates independently; the main cooling process is from a liquid coolant inlet I to a natural heat dissipation circulation loop;

when the temperature of the liquid coolant tank reaches T₁While cooling the main flowThe process is switched to a liquid coolant inlet I to a liquid coolant box, a condensing radiator and a second liquid coolant outlet III, and a liquid and cold source is provided for the outside; meanwhile, starting an auxiliary flow I-a natural heat dissipation circulation loop for regulation and control;

when T is₀＞T₁Cooling the liquid refrigerant by using a refrigeration system; closing a natural heat dissipation circulation loop, starting a refrigerating system, wherein the flow of the refrigerating system is a refrigerating circulation loop, and the main cooling flow is from a liquid coolant inlet I to an evaporation circulation loop;

when the temperature of the liquid coolant tank reaches T₁When the main process is switched to a liquid coolant inlet I to a liquid coolant box-evaporator-first liquid coolant outlet II, a liquid coolant source is provided; meanwhile, opening an auxiliary process liquid refrigerant inlet I-evaporation circulation loop for regulation and control;

when T is₁-5℃≤T₀≤T₁When the refrigeration system is used, a natural energy source cooling liquid refrigerant is taken as a main flow, a cooling main flow is from a liquid refrigerant inlet I to a natural heat dissipation circulation loop, a cooling liquid refrigerant of the refrigeration system is taken as an auxiliary flow, and the auxiliary flow is from the liquid refrigerant inlet I to a liquid refrigerant box-evaporator-liquid refrigerant outlet II to provide a liquid refrigerant source for the outside.

2. The method as claimed in claim 1, wherein T is the time T for adjusting the heat sink of the mobile liquid cooling source₀＜T₁And when the temperature is minus 5 ℃, the flow regulating valve at the inlet of the liquid coolant evaporator and the flow regulating valve at the outlet of the liquid coolant evaporator which reflows to the liquid coolant box are closed, and the refrigeration cycle loop is closed.

3. The method as claimed in claim 2, wherein the condensing radiator operates independently, and the fan of the condensing radiator operates to exchange heat with the coolant tube bundle.

4. The method as claimed in claim 1, wherein the main process and the auxiliary process are adjusted by a first flow control valve or a second flow control valve that the coolant outlet flows back to the coolant tank.

5. The method as claimed in claim 1, wherein T is the time T for adjusting the heat sink of the mobile liquid cooling source₀＞T₁And starting the refrigerating system, and exchanging heat in the condensing radiator through the refrigerant tube bundle.

6. The method as claimed in claim 1, wherein T is the time T for adjusting the heat sink of the mobile liquid cooling source₁-5℃≤T₀≤T₁During the process, the condensing radiator exchanges heat completely through the refrigerant tube bundle and the liquid coolant tube bundle.

7. A radiator regulation and control device of a mobile liquid cold source is characterized by comprising a refrigeration system and a liquid cold source system; the refrigerating system comprises a refrigerating circulation loop, and the liquid cooling system comprises an evaporation circulation loop and a natural heat dissipation circulation loop;

the refrigeration circulation loop is composed of a refrigeration compressor, a condensation radiator, a refrigerant liquid storage device, an evaporator and a gas-liquid separator which are sequentially communicated;

the evaporation circulation loop is formed by communicating a liquid refrigerant box with an evaporator; the natural heat dissipation circulation loop is formed by communicating a liquid refrigerant tank with a condensing radiator;

the evaporation circulation loop liquid refrigerant box is communicated with a liquid refrigerant inlet I, the evaporator is communicated with a first liquid refrigerant outlet II, and the condensing radiator is communicated with a second liquid refrigerant outlet III.

8. The device for regulating and controlling the heat sink of the mobile liquid cold source as claimed in claim 7, wherein the condensing heat sink comprises a liquid coolant tube bundle and a refrigerant tube bundle, the two tube bundles are alternately arranged in a plurality of rows at intervals, the liquid coolant tube bundle is one row more than the refrigerant tube bundle, the two tube bundles share one fin set, and the two tube bundles and the fin set share a condensing heat sink fan.

9. The heat sink control device of a mobile liquid cold source of claim 8, wherein the liquid coolant tube bundle and the refrigerant tube bundle are arranged in parallel with each other with a plurality of inlets and a plurality of outlets in a vertical row direction; the pipe diameter of the liquid refrigerant pipe bundle is 20 to 50 percent larger than that of the refrigerant pipe bundle.

10. The heat sink control device of the mobile liquid cold source as claimed in claim 7, wherein the evaporation circulation loop is connected with a liquid refrigerant pump, a first flow regulating valve and a fourth flow regulating valve;

a second flow regulating valve and a third flow regulating valve are connected to the natural heat dissipation circulation loop;

a liquid refrigerant tank air release valve is arranged above the liquid refrigerant tank.

Technical Field

The invention belongs to the field of cold source preparation in refrigeration and special environments, and particularly relates to a radiator regulating and controlling device and a regulating and controlling method of a movable liquid cold source.

Background

In some special application occasions, cold sources are required to be provided for vehicle-mounted or movable instruments, environmental spaces and the like for cooling or environmental regulation. Due to the mobility of instrument equipment or environment space and uncertainty of a use place, a refrigeration system which usually takes external natural wind as a cooling medium is designed, the size and the weight of the equipment and the system are huge, the equipment and the system are difficult to adapt to variable external environments, the energy consumption is large, and the temperature of a cold source is easy to fluctuate.

The liquid cold source is a liquid cold source prepared by a refrigerating system or an air cooling system and used for cooling heating instrument equipment or environmental space or regulating and controlling environmental parameters.

At present, a liquid cooling technology is mainly applied to cooling of electronic instruments and equipment with high integration and high heat load, and a technical mode that a cooling system cools a liquid refrigerant represented by ethylene glycol is mainly adopted, such as a patent "air conditioning system with a constant-temperature liquid cooling source" (CN201821929401.5), a patent "composite liquid cooling air supply device" (CN201821731572.7), a patent "machine-mounted liquid cooling source" (CN201821613212), a patent "cabinet with a high-power multi-channel liquid cooling source" (CN201811045216.4), a patent "multi-working-condition liquid cooling source for high-power electronic equipment" (CN201810237904.4), and the like. Some systems also consider the low temperature conditions in different climate zones or at night, and adopt the technical mode of cooling a liquid cold source by natural wind, such as a liquid cold source system (CN201210456459.3) which utilizes condensation heat and wind cooling to adapt to the refrigerating capacity, and the like.

The patent technologies all relate to the acknowledged technical modes of traditional refrigerating systems such as cooling liquid refrigerant, heat exchange equipment, control flow and the like, but the specific flow, structure and components are different. However, as mentioned above, for the mobile liquid cooling source system or unit, an air-cooled refrigeration system design scheme using external natural wind as a cooling medium is usually adopted, so that the condenser has a large volume and weight, and achieving energy-saving operation of the system and reducing the volume and weight of the system are one of the important points and difficulties of the mobile liquid cooling source.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention integrally designs the condenser of the refrigerating system and the natural air-cooled radiator from the viewpoints of compact system, volume weight reduction and system energy saving, and reduces the volume weight and the compact system; in addition, through the comparison of the ambient temperature and the required temperature of the liquid coolant, three liquid cold sources of regulation and control flows and a liquid coolant box are arranged, and the energy conservation of the system and the stable output of the liquid coolant are realized by fully utilizing external natural energy.

The invention is realized by the following technical scheme.

On one hand, the invention provides a radiator regulation and control method of a mobile liquid cold source, which comprises a refrigeration system and a liquid cold source system;

the refrigeration system is composed of a refrigeration compressor, a condensation radiator, a refrigerant liquid storage device, an evaporator and a gas-liquid separator which are sequentially communicated to form a refrigeration cycle loop;

the liquid cold source system is characterized in that a liquid coolant box is communicated with an evaporator to form an evaporation circulation loop, and the liquid coolant box is communicated with a condensation radiator to form a natural heat dissipation circulation loop;

let T₀Is ambient temperature, T₁Stabilizing the output temperature for the liquid coolant;

when T is₀＜T₁Cooling liquid by using outdoor natural wind energy at-5 DEG CA refrigerant; the refrigeration cycle loop is closed, and the condensing radiator operates independently; the main cooling process is from a liquid coolant inlet I to a natural heat dissipation circulation loop;

when the temperature of the liquid coolant tank reaches T₁When the cooling main process is switched to a liquid coolant inlet I to a liquid coolant box, a condensing radiator and a second liquid coolant outlet III, and a liquid and cold source is provided for the outside; meanwhile, starting an auxiliary flow I-a natural heat dissipation circulation loop for regulation and control;

when T is₀＞T₁Cooling the liquid refrigerant by using a refrigeration system; closing a natural heat dissipation circulation loop, starting a refrigerating system, wherein the flow of the refrigerating system is a refrigerating circulation loop, and the main cooling flow is from a liquid coolant inlet I to an evaporation circulation loop;

when the temperature of the liquid coolant tank reaches T₁When the main process is switched to a liquid coolant inlet I to a liquid coolant box-evaporator-first liquid coolant outlet II, a liquid coolant source is provided; meanwhile, opening an auxiliary process liquid refrigerant inlet I-evaporation circulation loop for regulation and control;

when T is₁-5℃≤T₀≤T₁When the refrigeration system is used, a natural energy source cooling liquid refrigerant is taken as a main flow, a cooling main flow is from a liquid refrigerant inlet I to a natural heat dissipation circulation loop, a cooling liquid refrigerant of the refrigeration system is taken as an auxiliary flow, and the auxiliary flow is from the liquid refrigerant inlet I to a liquid refrigerant box-evaporator-liquid refrigerant outlet II to provide a liquid refrigerant source for the outside.

Preferably, when T is₀＜T₁And when the temperature is minus 5 ℃, the flow regulating valve at the inlet of the liquid coolant evaporator and the flow regulating valve at the outlet of the liquid coolant evaporator which reflows to the liquid coolant box are closed, and the refrigeration cycle loop is closed.

Preferably, the condensing radiator operates independently, the fan of the condensing radiator operates, and heat exchange is carried out through the liquid coolant tube bundle.

Preferably, the main flow and the auxiliary flow are regulated by means of a first flow regulating valve or a second flow regulating valve which returns the liquid coolant outlet to the liquid coolant tank.

Preferably, when T is₀＞T₁And starting the refrigerating system, and exchanging heat in the condensing radiator through the refrigerant tube bundle.

Preferably, when T is₁-5℃≤T₀≤T₁During the process, the condensing radiator exchanges heat completely through the refrigerant tube bundle and the liquid coolant tube bundle.

In another aspect of the present invention, a heat sink regulating device of a mobile liquid cold source is provided, which includes a refrigeration system and a liquid cold source system; the refrigerating system comprises a refrigerating circulation loop, and the liquid cooling system comprises an evaporation circulation loop and a natural heat dissipation circulation loop;

the refrigeration circulation loop is composed of a refrigeration compressor, a condensation radiator, a refrigerant liquid storage device, an evaporator and a gas-liquid separator which are sequentially communicated;

the evaporation circulation loop is formed by communicating a liquid refrigerant box with an evaporator; the natural heat dissipation circulation loop is formed by communicating a liquid refrigerant tank with a condensing radiator;

the evaporation circulation loop liquid refrigerant box is communicated with a liquid refrigerant inlet I, the evaporator is communicated with a first liquid refrigerant outlet II, and the condensing radiator is communicated with a second liquid refrigerant outlet III.

Preferably, the condensing radiator comprises a liquid coolant tube bundle and a refrigerant tube bundle, the two tube bundles are alternately arranged in a plurality of rows at intervals, the liquid coolant tube bundle is more than the refrigerant tube bundle by one row, the two tube bundles share one fin group, and the two tube bundles and the fin group share a condensing radiator fan.

Preferably, the liquid coolant tube bundle and the refrigerant tube bundle are in a parallel mode of a plurality of inlets and a plurality of outlets in the vertical column direction; the pipe diameter of the liquid refrigerant pipe bundle is 20 to 50 percent larger than that of the refrigerant pipe bundle.

Preferably, the evaporation circulation loop is connected with a liquid refrigerant pump, a first flow regulating valve and a fourth flow regulating valve; a second flow regulating valve and a third flow regulating valve are connected to the natural heat dissipation circulation loop; a liquid refrigerant tank air release valve is arranged above the liquid refrigerant tank.

Compared with the prior art, the invention integrally designs the condenser of the refrigerating system and the natural air-cooled radiator from the viewpoints of system compactness, volume weight reduction and system energy saving, reduces the volume weight of the system and enhances the compactness; according to the invention, through comparison of the ambient temperature and the required temperature of the liquid coolant, three liquid cold source regulation and control processes and the liquid coolant box are arranged, external natural energy is fully utilized to realize energy conservation of the system and stable output of the liquid cold source, the system is suitable for variable external environments, the energy consumption is low, and the temperature of the output cold source is not easy to fluctuate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:

FIG. 1 is a structural flow and schematic diagram of the present invention;

fig. 2(a) and 2(b) are a front view and a side view of the condensing radiator according to the present invention, respectively.

In the figure: 1. a refrigeration compressor; 2. a condensing heat sink; 3. a refrigerant reservoir; 4. an expansion valve; 5. an evaporator; 6. a gas-liquid separator; 7. a liquid refrigerant tank; 8. a liquid refrigerant pump; 9. a first flow regulating valve; 10. a second flow regulating valve; 11. a third flow rate regulating valve; 12. a fourth flow regulating valve; 13. a liquid refrigerant tank air release valve; 14. a condensing radiator fan; 15. a liquid coolant tube bundle; 16. a refrigerant tube bundle.

a. A refrigerant inlet of the condensing radiator; b. a refrigerant outlet of the condensing radiator; c. a liquid coolant inlet of the condensing radiator; d. a liquid coolant outlet of the condensing radiator; e. an evaporator refrigerant inlet; f. an evaporator refrigerant outlet; g. an evaporator liquid coolant inlet; h. an evaporator liquid coolant outlet; I. a liquid coolant inlet; II. A first liquid coolant outlet; III, a second liquid refrigerant outlet.

Detailed Description

The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the present invention are provided to explain the present invention without limiting the invention thereto.

Referring to fig. 1, a schematic structural diagram of a radiator regulating and controlling device of a mobile liquid cold source is provided, which includes a refrigeration system and a liquid cold source system;

the refrigerating system is a refrigerating circulation loop consisting of a refrigerating compressor 1, a condensing radiator 2, a refrigerant liquid storage device 3, an evaporator 5 and a gas-liquid separator 6 which are sequentially communicated; the liquid cold source system is an evaporation circulation loop formed by communicating a liquid coolant box 7 with an evaporator 5; and a natural heat dissipation circulation loop formed by communicating the liquid refrigerant tank 7 with the condensing radiator 2.

The evaporation circulation loop liquid refrigerant box 7 is communicated with a liquid refrigerant inlet I, the evaporator 5 is communicated with a first liquid refrigerant outlet II, namely a liquid refrigerant outlet of the refrigerating system, and the condensation radiator 2 is communicated with a second liquid refrigerant outlet III, namely a natural cooling liquid refrigerant outlet.

An expansion valve 4 is connected between a refrigerant liquid storage device 3 and an evaporator 5 of the refrigeration cycle loop; the evaporation circulation loop is connected with a liquid refrigerant pump 8, a first flow regulating valve 9 and a fourth flow regulating valve 12; and a second flow regulating valve 10 and a third flow regulating valve 11 are connected to the natural heat dissipation circulation loop.

The condenser radiator 2 is respectively provided with a refrigerant inlet a of the condenser radiator, a refrigerant outlet b of the condenser radiator, a liquid coolant inlet c of the condenser radiator and a liquid coolant outlet d of the condenser radiator, and the evaporator 5 is respectively provided with an evaporator refrigerant inlet e, an evaporator refrigerant outlet f, an evaporator liquid coolant inlet g and an evaporator liquid coolant outlet h; the liquid coolant tank 7 is provided with a liquid coolant tank vent valve 13.

The refrigerating circulation loop is formed by 1-a-b-3-4-e-f-6-1, the evaporation circulation loop is formed by 7-8-9-g-h-12-7, and the natural heat dissipation circulation loop is formed by 7-8-10-c-d-11-7.

As shown in fig. 2(a) and (b), the condensing radiator 2 is composed of two independent tube bundles, one is a liquid coolant tube bundle 15, the other is a refrigerant tube bundle 16, the two tube bundles are alternately arranged in multiple rows at intervals, the liquid coolant tube bundles are always arranged in a row more than the refrigerant tube bundles in the vertical row direction, the two tube bundles share one set of fins, and the two tube bundles and the fins share a condensing radiator fan. The single pipe diameter of the liquid coolant pipe bundle in the condensing radiator is 20-50% larger than that of the single pipe of the refrigerant pipe bundle. The liquid coolant tube bundles and the refrigerant tube bundles in the condensing radiator can adopt a multi-inlet parallel mode in the vertical column direction. The condensing radiator fan 14 on the condensing radiator 2 adopts a variable frequency fan to adjust the air quantity.

As shown in fig. 1, the mobile liquid cooling source of the device provides two cooling modes of the liquid refrigerant according to outdoor environmental parameters, wherein the liquid refrigerant is cooled by the evaporator 5, and the liquid refrigerant is cooled by the condensing radiator 2.

According to the ambient temperature of T₀With the liquid coolant at a required temperature T₁The operation mode of the liquid cooling source regulation and control system is as follows:

when T is₀＜(T₁-5 ℃) and cooling the liquid refrigerant by using outdoor natural energy.

The refrigeration system is closed, the first flow regulating valve 9 at the inlet of the liquid coolant evaporator and the fourth flow regulating valve 12 at the outlet of the liquid coolant evaporator return to the liquid coolant box and are closed, the condensing radiator 2 and the condensing radiator fan 14 operate independently, and the liquid coolant tube bundle 15 in the condensing radiator 2 participates in heat exchange. When the system starts, the cooling main flow is I-7-8-10-c-d-11-7, and when the temperature of the liquid refrigerant box reaches T₁And meanwhile, the main flow is switched to I-7-8-10-c-d-III to provide a liquid and cold source, the auxiliary flow I-7-8-10-c-d-11-7 is also started to regulate, and the main flow and the auxiliary flow are regulated by a third flow regulating valve 11 which returns to a liquid coolant box from a liquid coolant outlet of the condensing radiator.

When T is₀＞T₁A refrigeration system is utilized to cool the liquid refrigerant.

And a second flow regulating valve 10 of a liquid refrigerant inlet of the condensing radiator and a third flow regulating valve 11 of a liquid refrigerant outlet of the condensing radiator which flows back to the liquid refrigerant box are closed, the refrigerating system is started, and a refrigerant tube bundle 16 in the condensing radiator participates in heat exchange. When the system starts, the flow of the refrigerating system is 1-a-b-3-4-e-f-6-1, the main cooling flow is I-7-8-9-g-h-12-7, and when the temperature of the liquid refrigerant box reaches T₁And meanwhile, the main flow is switched to I-7-8-9-g-h-II to provide a liquid and cold source, the auxiliary flow I-7-8-9-g-h-12-7 is also started to regulate, and the main flow and the auxiliary flow are regulated by a fourth flow regulating valve 12 which returns to the liquid and cold agent box through the outlet of the liquid cooling agent evaporator.

When (T)₁-5℃)≤T₀≤T₁In the process, the natural energy cooling liquid refrigerant is mainly used, the main flow path is I-7-8-10-c-d-11-7, and the cooling liquid refrigerant is mainly used for circulating cooling of the liquid refrigerant box 7And the auxiliary flow of the cooling liquid refrigerant of the refrigerating system is I-7-8-9-g-h-II, and a liquid cold source is provided for the outside. At this time, the refrigerant tube bundle 16 and the liquid coolant tube bundle 15 in the condensing radiator 2 all participate in heat exchange.

By the system, the condenser of the refrigerating system and the natural air-cooled radiator are integrally designed, so that the volume and the weight of the system are reduced, and the compactness is enhanced; in addition, three liquid cold source regulation and control processes and a liquid coolant box are arranged by comparing the ambient temperature with the required temperature of the liquid coolant, so that the energy consumption is low, and the temperature of the cold source is not easy to fluctuate; the energy conservation of the system and the stable output of the liquid cooling source are realized by fully utilizing the external natural energy.

While the invention has been described in further detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.