CN1854649A - Hot and cold fluid loop structure - Google Patents

Abstract

A cold-hot flow circuit structure used in a circulation loop of a vapor compression system can control the flow direction of the inside circuit via a single or several flow direction control units, in which, a first flow direction control unit connected between first and second heat-exchanging devices leads the working fluid heated through the first heat-exchanging device to the second one, and controls the radiating or heat-absorbing operation of the second heat-exchanging device; a second flow direction control unit connected between second and third heat-exchanging devices controls the working fluid flowing through the second heat-exchanging device.

Description

Hot and cold fluid loop structure

Technical field

The present invention relates to a kind of hot and cold fluid loop structure, especially refer to a kind of by loop stream to the flow direction of control principle with the allotment working fluid, can be for the user with the cold and hot allotment that heats, freezes of weather, and then promote its energy-saving benefit, reach the purpose of simplifying the pipeline configuration and reducing required cost simultaneously.

Background technology

See also shown in Figure 1ly, it is second figure of No. the 437938th, the novel patent announcement of TaiWan, China " multiple cold and hot recovery switch ", and it mainly is by a compressor 11; Heat exchanger 20,30,40,50 more than at least four; Heat radiation comb 16,17 and expansion valve 13 more than at least two constitute, wherein, condenser end 12 by compressor cycle 10 is provided with two heat exchangers 20,30, pipeline 31, forced circulation pipeline 32 and pumping 33, and boil-off gas end 14 is provided with two heat exchangers 40,50, pipeline 51, forced circulation pipeline 52 and pumping 53, and the heat radiation of its condenser end 12 row 16 can do heat exchange with a fan (18) with the heat radiation row 17 of boil-off gas end 14, uses to reach multiple cold and hot swap status.

Above-mentioned structure, not only cause the complicated of pipeloop configuration and construction inconvenience easily, the bulking block that is used simultaneously is also comparatively various, further increase required cost easily, add again in cyclic process, must be by the effect of two heat radiation rows 16,17 as a heat radiation and a cold scattering, even behind each heat exchanger 20,30,40,50 of must flowing through, just can finish a circulation, so, cause and reduced its energy use efficiency.

Therefore, this case inventor is in view of above-mentioned shortcoming of deriving, and hope can be improved innovation, through after studying for a long period of time, develops a kind of hot and cold fluid loop structure of the present invention.

Summary of the invention

Main purpose of the present invention provides a kind of hot and cold fluid loop structure, is the closed circuit that is applied to the steam compression type system, and its preferred embodiment comprises:

First-class to control module, be linked between one first heat-exchange device and one second heat-exchange device, it includes one and flows to a control valve and a throttling control element, uses the running that control second heat-exchange device is done heat radiation or heat absorption.

Second flows to control module, is linked between second heat-exchange device and one the 3rd heat-exchange device, and it includes a guide wire and another flow direction control valve, uses the control working fluid and whether imports the 3rd heat-exchange device for refrigeration.

In sum, first-classly flow to control module by this to control module and this second, can control inner loop, use the flow direction of allotment working fluid, make it import second heat-exchange device by first-class working fluid after control module will be flowed through the fabricate-heat of first heat-exchange device institute, and the running of controlling the heat radiation of second heat-exchange device do or absorbing heat, again by second working fluid that flows to after control module is controlled second heat-exchange device of flowing through, whether import the 3rd heat-exchange device for refrigeration, use to reach and heat, the allotment of refrigeration, and then promote the efficient that its energy uses, can be for the user with the summer, the winter weather is done cold and hot exchange, further simplifies the pipeline configuration simultaneously and reduces required cost.

Description of drawings

Fig. 1 is second figure of No. the 437938th, the novel patent announcement of TaiWan, China " multiple cold and hot recovery switch ";

Fig. 2 is that schematic diagram is used in hot and cold fluid loop structure collocation of the present invention;

Fig. 3 is that schematic diagram is used in its home loop of hot and cold fluid loop structure of the present invention and collocation thereof;

Fig. 4 uses the preferred embodiment schematic diagram summer for hot and cold fluid loop structure of the present invention;

Fig. 5 uses the preferred embodiment schematic diagram winter for hot and cold fluid loop structure of the present invention.

The figure number explanation:

10..... compressor cycle 11..... compressor

12..... condenser end 13..... expansion valve

The row 14..... boil-off gas end 16,17... dispel the heat

18..... fan 20,30,40,50 heat exchangers

31..... pipeline 32..... forced circulation pipeline

33..... pumping 51..... pipeline

52..... forced circulation pipeline 53..... pumping

1...... first-class to control module 11 ' ... flow direction control valve

12 ' ... throttling control element 2...... second flows to control module

21..... guide wire 22..... flow direction control valve

3...... first heat-exchange device 31 ' ... thermal medium

4...... the second heat-exchange device 5...... the 3rd heat-exchange device

51 ' ... cold medium 6...... compressor

The specific embodiment

For making convenient understanding further feature content of the present invention of auditor and advantage, its effect of reaching can more be manifested, existing with conjunction with figs. of the present invention, be described in detail as follows:

See also shown in Fig. 2,3, the present invention provides a kind of hot and cold fluid loop structure, is the closed circuit that is applied to the steam compression type system, and it comprises and first-classly flows to control module 2 to control module 1 and second.Wherein, this is first-class to control module 1, is linked to 4 of one first heat-exchange device 3 and one second heat-exchange devices, its include one flow to control valve 11 ' and throttling control element 12 ', use the running that control second heat-exchange device 4 is done heat radiation or heat absorption; This second flows to control module 2, be linked to 5 of second heat-exchange device 4 and one the 3rd heat-exchange devices, it includes a guide wire 21 and another flow direction control valve 22, and each is directed to the 3rd heat-exchange device 5 and a compressor 6 respectively, uses the control working fluid and imports the 3rd heat-exchange device 5 and make refrigeration or directly be back to compressor 6.

In sum, when using (as: collocation is applied in the closed circuit of steam compression type system), first-classly flow to control module 2 by this to control module 1 and this second, it can control inner loop, use the flow direction of allotment working fluid, make it import second heat-exchange device 4 by this first-class working fluid after control module 1 will be flowed through 3 fabricate-heat of first heat-exchange device, and the running of controlling these second heat-exchange device, 4 do heat radiations or absorbing heat, again by second working fluid that flows to after control module 2 is controlled second heat-exchange device 4 of flowing through, whether importing the 3rd heat-exchange device 5 supplies refrigeration or directly is back to compressor 6, use to reach and heat, the allotment of refrigeration, and then promote its energy-saving benefit.

See also Fig. 4, shown in 5, be practical application embodiment schematic diagram of the present invention, wherein, when using summer, this first-class flow direction control valve 11 to control module 1 ' be the ON state, this second flow direction control valve 22 that flows to control module 2 is the OFF state, the working fluid that it is sent via compressor 6, then can flow through first heat-exchange device 3 for fabricate-heat, using generation can be for the thermal medium 31 ' (as: water of outside utilization, but the medium of air and various heat accumulation), and import the working fluid after the fabricate-heat first-class to control module 1, be ON state by its flow direction control valve 11 this moment, make working fluid can flow to flow direction control valve 11 ', promptly import second heat-exchange device 4 and carry out the condensation heat radiation, and condensed working fluid is imported second flow to control module 2, be OFF state by its flow direction control valve 22 this moment, make working fluid can flow to guide wire 21, promptly import the 3rd heat-exchange device 5 and carry out refrigeration, using generation can be for the cold medium 51 ' (as: water of outside utilization, air and variously store up cold medium), and with the importing of the working fluid behind refrigeration compressor 6, and then finish a circuit cycle.

Secondly, when using winter, this first-class flow direction control valve 11 to control module 1 ' be the OFF state, this second flow direction control valve 22 that flows to control module 2 is the ON state, the working fluid that it is sent via compressor 6, then can flow through first heat-exchange device 3 for fabricate-heat, using generation can be for the thermal medium 31 ' (as: water of outside utilization, but the medium of air and various heat accumulation), and import the working fluid after the fabricate-heat first-class to control module 1, this moment is by its flow direction control valve 11 ' be the OFF state, after making working fluid can flow to throttling control element 12 ' carry out the isenthalpic expansion effect, promptly import second heat-exchange device 4 and carry out swelling heat absorption, and the importing of the gaseous working fluid after will expanding second flows to control module 2, use by its flow direction control valve 22 and be the ON state, make gaseous working stream direction of flow flow direction control valve 22, can directly import compressor 6, and then finish a circuit cycle.

So, the present invention only first-classly flows to control module 2 to control module 1 and this second by this, the loop that its control is inner, use the flow direction of allotment working fluid, reach the allotment that heats, freezes with summer, winter weather, and then promote the efficient that its energy uses, further simplify the pipeline configuration simultaneously and reduce required cost.

For making the present invention show its progressive and practicality more, below as follows with known do one comparative analysis:

Known disappearance:

1, the complexity of pipeline configuration easily causes the inconvenience of construction.

2, Yun Yong bulking block is various.

3, easily increase required cost.

4, must be by the effect of two heat radiation rows as a heat radiation and a cold scattering.

5, energy use efficiency is low.

Advantage of the present invention:

1, can simplify pipe arrangement, reduce the inconvenience of construction.

2, can save more than one heat exchanger.

3, can reduce required cost.

4, need not be by the effect of two heat radiation rows as a heat radiation and a cold scattering.

5, only utilize the cold and hot exchange of two stream control systems.

6, can significantly promote energy-saving benefit.

In sum, the present invention is breaking through under the prior art configurations, has reached the effect that institute's desire is promoted really, nor is that the people who is familiar with this skill can expect easily.Moreover open before the present patent application, the progressive that it had, practicality have met the application important document of patent of invention, and the spy proposes application for a patent for invention in accordance with the law.

Above-listed detailed description is at the specifying an of possible embodiments of the present invention, and this embodiment is not in order to limiting claim of the present invention, and does not allly break away from the equivalence that skill spirit of the present invention done and implement or change, all should be contained in the claim of this case.

Claims (5)

1, a kind of hot and cold fluid loop structure is characterized in that comprising:

First-class to control module, be linked between one first heat-exchange device and one second heat-exchange device, it includes one and flows to a control valve and a throttling control element, uses the running that control second heat-exchange device is done heat radiation or heat absorption;

Second flows to control module, be linked between second heat-exchange device and one the 3rd heat-exchange device, it includes a guide wire and another flow direction control valve, and each is directed to the 3rd heat-exchange device and a compressor respectively, uses the control working fluid and imports the 3rd heat-exchange device and make refrigeration or directly be back to compressor.

2, hot and cold fluid loop structure as claimed in claim 1 is characterized in that, this first heat-exchange device can be arranged in pairs or groups and is applied to do fabricate-heat for working fluid.

3, a kind of hot and cold fluid loop structure is characterized in that comprising:

First-class to control module, be linked between one first heat-exchange device and one second heat-exchange device, it includes one and flows to a control valve and a throttling control element, uses the running that control second heat-exchange device is done heat radiation or heat absorption.

4, hot and cold fluid loop structure as claimed in claim 3 is characterized in that, this first heat-exchange device can be arranged in pairs or groups and is applied to do fabricate-heat for working fluid.

5, a kind of hot and cold fluid loop structure is characterized in that comprising:

Second flows to control module, be linked between second heat-exchange device and one the 3rd heat-exchange device, it includes a guide wire and another flow direction control valve, and each is directed to the 3rd heat-exchange device and a compressor respectively, uses the control working fluid and imports the 3rd heat-exchange device and make refrigeration or directly be back to compressor.

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