CN206113428U - Evaporimeter, air -cooler, refrigeration or heat pump device and system - Google Patents

Abstract

The utility model relates to an evaporimeter, the air -cooler that contains this evaporimeter, the refrigeration that contains this evaporimeter or heat pump device, the refrigeration that contains this evaporimeter or heat pump system, the evaporimeter is provided with refrigeration pipeline and defrosting pipeline respectively. The utility model discloses an evaporimeter adopts ad hoc defrosting pipeline to the refrigerant demand of system can make evaporimeter steam defrosting reasonable condensing pressure occasionally, and reducing during the defrosting by a wide margin. The utility model discloses a refrigeration or heat pump system, the system moves reliably during the defrosting, and it is quick, thorough, high -efficient to defrost.

Description

Vaporizer, air-cooler, refrigeration or heat pump assembly and system

Technical field

This utility model is related to refrigerating field, in particular to a kind of vaporizer, the air-cooler containing the vaporizer, Refrigeration containing the vaporizer or heat pump assembly and refrigeration or heat pump containing the vaporizer.

Background technology

In order to ensure direct expansion air cooler normal work, when its surface frosting, just must defrost in good time.Remove White mode mainly has water flushing, electric defrosting and hot gas defrosting.Hot gas defrosting is different according to refrigeration or heat pump Defrost mode Also divide inverse defrosting and hot gas bypass defrosting.

Hot gas defrosting application is convenient and energy-conservation, especially inverse defrosting are than hot gas bypass defrosting more energy-conservation, but, cold In hiding the middle cryogenic refrigerating unit in freezing field, particularly in larger device, inverse defrosting application is less.On the one hand, by Substantially big than condenser in the internal volume of vaporizer, on the other hand the cold-producing medium wretched insufficiency of system during inverse defrosting, inversely removes The pressure that defrosts when white is too low so that defrosting time length, effect are poor, results even in heating power expansion valve and system cisco unity malfunction.

Utility model content

The purpose of this utility model is to solve the above problems.

The technical scheme that this utility model is provided is as follows：

A kind of vaporizer, is respectively arranged with refrigeration piping and defrosting pipeline.

Further, internal volume of the internal volume of the refrigeration piping more than the defrosting pipeline.

Preferential, the cross-sectional area of the refrigeration piping is more than the cross-sectional area of the defrosting pipeline.

Further, the refrigeration piping and the defrosting pipeline are pipe, and the internal diameter of the refrigeration piping is more than institute State the internal diameter of defrosting pipeline.

Preferential, the external diameter of the refrigeration piping is 15.88mm, and the external diameter of the defrosting pipeline is not more than 10mm.

Preferential, the external diameter of the refrigeration piping is 15.88mm, and the external diameter of the defrosting pipeline is 9.52mm.

Preferential, the external diameter of the refrigeration piping is 12.7mm, and the external diameter of the defrosting pipeline is not more than 9.52mm.

A kind of air-cooler, comprising the vaporizer described in any of the above-described.

One kind refrigeration or heat pump assembly, comprising the vaporizer described in any of the above-described.

One kind refrigeration or heat pump, comprising the vaporizer described in any of the above-described.

Based on above-mentioned technical proposal, vaporizer of the present utility model adopts ad hoc defrosting pipeline, so as to remove can system There is rational condensing pressure when white, and the coolant demand of system is greatly decreased when defrosting.Refrigeration of the present utility model or heat Pumping system, system operation reliability during defrosting, defrosting is quick, thorough, efficient.

Description of the drawings

Fig. 1 is the pipeline composition schematic diagram of this utility model vaporizer first embodiment.

Fig. 2 is the pipeline connection diagram of this utility model vaporizer first embodiment.

Fig. 3 is the theory of constitution schematic diagram of this utility model refrigeration system first embodiment.

Specific embodiment

Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.

As shown in figure 1, for the pipeline composition schematic diagram of this utility model vaporizer first embodiment.Wherein, 50 are evaporation Device, the refrigerant passage of vaporizer 50 is round copper pipe, and empty circles 510 are refrigeration pipings, and solid circles 520 are defrosting pipelines.

As shown in Fig. 2 for the pipeline connection diagram of this utility model vaporizer first embodiment.

Wherein, the flow direction of low-temp low-pressure coolant when hollow arrow represents that vaporizer 50 freezes, now coolant is along hachure Tube runs, it is 4 tunnels that the coolant of low-temp low-pressure out distinguishes afterwards 1,2,3,4 points of Jing separating tubes from low pressure inlet house steward 511, then Into in the refrigeration piping 510 of vaporizer 50, the refrigeration piping 510 of vaporizer 50 is also classified into 4 tunnels, cold per there is 6 copper pipes all the way Matchmaker together in suction nozzle 512, then flows to compressor from after 4 road refrigeration piping outputs.

The flow direction of high pressure refrigerant when filled arrows represent that vaporizer 50 defrosts, now coolant is along broad-brush tube runs, High pressure refrigerant is divided into two-way from after the output of high-pressure inlet house steward 521, respectively enters the two-way pipeline of the defrosting pipeline 520 of vaporizer 50 In, the water accumulating disc defrosing pipe 526 also arranged through the bottom of vaporizer 50 from after the two-way pipeline output of defrosting pipeline 520 is entered back into In high-pressure liquid tube 522, and export from high-pressure liquid tube 522.

As shown in figure 3, for the theory of constitution schematic diagram of this utility model refrigeration system first embodiment.Wherein, 10 are pressure Contracting machine, 61 is four-way change-over valve, and 20 is condenser, and 30 is two-way reservoir, and 50 is vaporizer, and vaporizer 50 includes refrigeration piping 510 and defrosting pipeline 520, it is gas-liquid separator that the bottom of vaporizer 50 is additionally provided with water accumulating disc defrosing pipe 526,62,40 and 66 Heating power expansion valve is, 63 is break-make electromagnetic valve, and 64 and 65 are check valve, its conducting direction is direction shown in arrow.

Four-way change-over valve 61 is an electromagnetic valve, has d mouths, e mouths, s mouths, four connectors of c mouths, and with two operations Position, during 61 power-off of four-way change-over valve, its d mouth is connected with c mouths and e mouths are connected with s mouths, on four-way change-over valve 61 during electricity, its d mouth Connect with e mouths and c mouths are connected with s mouths.

The d mouths of four-way change-over valve 61 are connected with the air vent of the compressor 11, and the s mouths of four-way change-over valve 61 are through gas-liquid Separator 62 is connected with the air entry of compressor 11, and the c mouths of four-way change-over valve 61 are to being sequentially connected in series connection condenser between e mouths 20th, the defrosting pipeline 520 of check valve 65, reservoir 30, check valve 64, water accumulating disc defrosing pipe 526, vaporizer 50, check valve 65 Two ends be also arranged in parallel heating power expansion valve 66, on the connecting pipe between reservoir 30 and check valve 64 also bypass have one Pipeline, the pipeline to be sequentially passed through and connect gas-liquid separation after the refrigeration piping 510 of electromagnetic valve 63, heating power expansion valve 40, vaporizer 50 The entrance of device 62.In the refrigeration system application of the present embodiment and low temperature miniature cold storage, condenser 20 and vaporizer 50 adopt wind It is cold.

During cooling system, the power-off of four-way change-over valve 61, electromagnetic valve 63 is opened, and the cold-producing medium of High Temperature High Pressure is defeated from compressor 10 After going out, the d mouths and c mouths for sequentially passing through four-way change-over valve 61 enters condenser 20, becomes high after radiating condensation in condenser 20 Press liquid, then enters reservoir 30 through check valve 65, and the high-pressure liquid coolant from the output of reservoir 30 is through electromagnetic valve 63 Throttle into heating power expansion valve 40 afterwards, be changed into the biphase coolant of low-temp low-pressure, subsequently in the refrigeration piping 510 of vaporizer 50 Heat absorption is changed into low-pressure gas, and the air entry of compressor 11 is then returned to through gas-liquid separator 62, forms a complete refrigeration Circulation.

With the increase of cooling system time, the frost layer of the fin surface of vaporizer 50 is more and more thicker, therefore, it is desirable to evaporation Device 50 defrosts.

When system defrosts, electricity on four-way change-over valve 61, electromagnetic valve 63 is closed, and the cold-producing medium of High Temperature High Pressure is defeated from compressor 10 After going out, the d mouths and e mouths for sequentially passing through four-way change-over valve 61 enters the defrosting pipeline 520 of vaporizer 50, radiating condensation wherein, The further radiating of water accumulating disc defrosting pipe 526 for entering back into the bottom of vaporizer 50 is changed into highly pressurised liquid, then enters through check valve 64 In entering reservoir 30, the two of low-temp low-pressure is changed into Jing after the throttling of heating power expansion valve 66 from the high-pressure liquid coolant of the output of reservoir 30 Phase coolant, entering back into the heat of vaporization absorbed in condenser 20 in surrounding air becomes low-pressure gaseous coolant, then in turn through The c mouths of four-way change-over valve 61, s mouths and gas-liquid separator 62, eventually pass back to the air entry of compressor 11, complete one and complete remove Frost circulation.

In defrosting circulation, the coolant in the refrigeration piping 510 of vaporizer 50 is heated and is inhaled into through gas-liquid separator 62 The air entry of compressor 10, in the system hence into defrosting circulation.After the completion of defrosting circulation, when just starting kind of refrigeration cycle, steam E mouths, s mouths, gas-liquid separator 62 that the slightly higher coolant of pressure in the defrosting pipeline 520 of device 50 sequentially passes through four-way change-over valve 61 are sent out, The air entry of compressor 10 is inhaled into, hence in the system of kind of refrigeration cycle.

Due to the ad hoc defrosting pipeline 520 of vaporizer 50 and its internal volume and heat exchange area are relatively small, to vaporizer 50 During defrosting, the coolant of needs is less and the pressure that defrosts will not be too low so that impact system or compressor normally run, during defrosting, Due to being provided with reservoir 30, the coolant exported from the water accumulating disc defrosting pipe 526 of the bottom of vaporizer 50 does not almost have degree of supercooling, steams In sending out the defrosting pipeline 520 and water accumulating disc defrosting pipeline 526 of device 50, the sub-fraction that discharge superheat coolant takes pipeline is removed, Condensation temperature is, system operation reliability during defrosting, and it is uniform, quick, thorough, efficient to defrost.

Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to This utility model, for a person skilled in the art, this utility model can have various modifications and variations.So, it is all Any modification, equivalence replacement, improvement made within spirit of the present utility model and principle etc., should be included in this utility model Within the scope of being claimed.

Claims (10)

1. a kind of vaporizer (50), it is characterised in that：

It is respectively arranged with refrigeration piping (510) and defrosting pipeline (520).

2. vaporizer according to claim 1, it is characterised in that：

Internal volume of the internal volume of the refrigeration piping (510) more than defrosting pipeline (520).

3. vaporizer according to claim 2, it is characterised in that：

Cross-sectional area of the cross-sectional area of the refrigeration piping (510) more than defrosting pipeline (520).

4. vaporizer according to claim 3, it is characterised in that：

The refrigeration piping (510) and defrosting pipeline (520) are pipe, and the internal diameter of the refrigeration piping (510) is more than The internal diameter of defrosting pipeline (520).

5. vaporizer according to claim 4, it is characterised in that：

The external diameter of the refrigeration piping (510) is 15.88mm, and the external diameter of the defrosting pipeline (520) is not more than 10mm.

6. vaporizer according to claim 5, it is characterised in that：

The external diameter of the refrigeration piping (510) is 15.88mm, and the external diameter of the defrosting pipeline (520) is 9.52mm.

7. vaporizer according to claim 4, it is characterised in that：

The external diameter of the refrigeration piping (510) is 12.7mm, and the external diameter of the defrosting pipeline (520) is not more than 9.52mm.

8. a kind of air-cooler, it is characterised in that：

Comprising the vaporizer described in any one of the claims 1 to 7.

It is 9. a kind of to freeze or heat pump assembly, it is characterised in that：

Comprising the vaporizer described in any one of the claims 1 to 7.

It is 10. a kind of to freeze or heat pump, it is characterised in that：

Comprising the vaporizer described in any one of the claims 1 to 7.