CN110160280A - The evaporating condensation type water cooler of carrying liqs device for cooling - Google Patents

Abstract

The invention discloses a kind of evaporating condensation type water coolers of carrying liqs device for cooling, including compressor, the evaporative condenser being connected with the compressor outlet, the device for cooling being connected with evaporative condenser outlet, throttling set, the evaporator, the first regulating valve, the second regulating valve being connected with device for cooling outlet；The throttling set is connected with evaporator by pipeline, which is equipped with cooling bypass, which penetrates to the device for cooling；First regulating valve is set on pipeline, and second regulating valve is set on the cooling bypass；Solenoid valve is equipped between the device for cooling main road outlet and throttling set.The present invention effectively realizes to the cooling down of highly pressurised liquid by the setting of device for cooling, improves the degree of supercooling of highly pressurised liquid, avoids the occurrence of flash distillation, effectively improves unit performance and operation stability.

Description

The evaporating condensation type water cooler of carrying liqs device for cooling

Technical field

The invention belongs to refrigerating machine technical fields, more particularly, to a kind of evaporative condenser of carrying liqs device for cooling Formula water cooler.

Background technique

Evaporating condensation type water cooler combines the advantages of water cooling and cooling by wind, using air and recirculated water as cold But medium, the high temperature and high pressure gas being discharged using the evaporation latent heat of evaporative condenser recirculated cooling water come direct condensate compressor Refrigerant eliminates the link that exchanges heat among water chiller cooling water, therefore condensation temperature can reduce by 4~5 DEG C compared with water chiller, and can Save cooling water pump power consumption.

Compared with conventional water-cooling system (water chiller+cooling water pump+cooling tower), 20% left side is can be improved in unit refrigeration efficiency It is right；Compared with air-cooled unit, unit refrigeration efficiency then can be improved 60% or so, therefore be current refrigeration, Energy Efficiency Ratio in air-conditioning system Highest Host Type can solve conventional air-cooled and water chiller condensation temperature height, the low defect of refrigeration efficiency very well.

Just because of the condensation temperature of conventional evaporating condensation type water cooler is lower, and the heat exchange caliber phase of evaporative condenser To more slightly in order to drain, therefore the highly pressurised liquid degree of supercooling of evaporative condenser outlet is approximately zero.And come out from liquid storage device High pressure saturated liquid is by unavoidably generating local resistance and edge when device for drying and filtering, shut-off valve, solenoid valve and high-pressure liquid tube Journey resistance, therefore saturated liquid will generate flass, fractional saturation liquid becomes saturated gas.

Meanwhile being influenced by air current composition, refrigerant distributing uniformity and recirculated cooling water uniformity of water distribution, vaporation-type is cold The non-total condensation of the high-pressure gas refrigerant of condenser partial circuit is saturated liquid, these gases also inevitably enter high pressure Fluid path.

Since the volume of saturated gas is 40 times or so of saturated liquid, the gas refrigerant carried secretly in highly pressurised liquid is once Into throttling set, refrigerant flow will seriously affect, lead to reduction and refrigerating capacity and the refrigeration efficiency of unit evaporating temperature Deep fades；Meanwhile flash gas will also result in from throttling set supply evaporator liquid refrigerant flow it is unstable, even Interrupted feed flow is led to the problem of, generates greater risk to unit performance and compressor operational reliability, therefore set steady is poor.

Summary of the invention

The present invention for overcome the deficiencies in the prior art, provides a kind of carrying liqs cooling down for avoiding flash distillation situation from occurring The evaporating condensation type water cooler of device.

To achieve the goals above, the invention adopts the following technical scheme: a kind of evaporation of carrying liqs device for cooling Condensing water cooler goes out including compressor, the evaporative condenser being connected with the compressor outlet, with the evaporative condenser Mouthful connected device for cooling exports the throttling set being connected, evaporator, the first regulating valve, the with the device for cooling Two regulating valves；The throttling set is connected with evaporator by pipeline, which is equipped with cooling bypass, the cooling bypass part It penetrates to the device for cooling；First regulating valve is set on pipeline, and second regulating valve is set to the cooling bypass On；Solenoid valve is equipped between the device for cooling main road outlet and throttling set.The present invention passes through device for cooling Setting is effectively realized to the cooling down of highly pressurised liquid, improves the degree of supercooling of highly pressurised liquid, avoid the high pressure liquid of reservoir outlet Body, because of the local resistance of the components such as device for drying and filtering, solenoid valve, avoids liquid storage device to the dress that throttles in degree of supercooling deficiency situation It is flashed caused by the on-way resistance of refrigeration pipeline between setting and leads to the case where seriously affecting unit refrigerating capacity and refrigeration efficiency, had Effect improves unit performance and operation stability；By the setting of the first regulating valve and the second regulating valve, respectively to major loop and drop The occurrence of refrigerant flow of warm bypass is effectively adjusted, and cooling effect is further enhanced, and prevents flash distillation.

Liquid storage device and device for drying and filtering are successively arranged between evaporative condenser outlet device for cooling；To filtering Mechanical admixture in unit is effectively removed, while removing the moisture content in refrigerant.

There is pressure difference between the cooling bypass and pipeline junction and pipeline and evaporator junction, conveyed in pipeline Medium can be entered to partially in the cooling bypass；Guarantee in course of normal operation,.

The pressure high temperature hot gas refrigerant of compressor discharge enters evaporative condenser, by heat dissipation to air and Highly pressurised liquid is condensed into after recirculated cooling water, after enter in device for cooling through liquid storage device and device for drying and filtering, cooled down Become high-pressure sub-cooled liquid after low-temp low-pressure gas-liquid refrigerant cooling in bypass, high-pressure sub-cooled liquid enters throttling set and saved Stream decompression is at the gas-liquid refrigerant of low-temp low-pressure, and most of low-temp low-pressure gas-liquid refrigerant enters steaming after passing through regulating valve later It sends out inside device, is vaporized into low-pressure gas and comes back in compressor.

The cooling bypass is equipped with bypass throttling set, guarantees that by the highly pressurized liquid throttling decompression of cooling bypass be low The effect of warm low-pressure gas-liquid refrigerant is be more good, guarantees gasify by the coolant media in cooling bypass as low pressure Gas.

The evaporator include cylinder, set on the end cap at cylinder both ends, the inlet and outlet on end cap, be set to The intracorporal tube sheet of cylinder, deflector, the heat exchanger tube being arranged on tube sheet and deflector, the air inlet and air outlet on cylinder and For to the buffer unit for entering to the intracorporal gas of cylinder at air inlet and being drained；By the setting of buffer unit, so that into Being poured at port to the intracorporal gas impact force of cylinder will not directly act on heat exchanger tube, reduce the impact of gas exchange heat pipe Power reduces the spoilage of heat exchanger tube, extends service life of equipment.

The buffer unit includes the first buffer unit of corresponding air inlet position setting and is set to first buffering Second buffer unit of component side；First buffer unit include can in gas impact it is lower generate elastically-deformable buffer board, The positioning region that is connected with the buffer board and the locating slot that positioning region insertion is disclosed on the cylinder inboard wall, the buffer board are set In air inlet exit lower position, which is connected with the positioning region, and one end bends downward to form arc Conduction part；The positioning region includes the linking arm of plate and the connection plate and buffer board, which is arcuate structure setting；It is excellent Choosing, the buffer board with a thickness of 1-3cm, there is certain deformability；Gas at air inlet enters in cylinder When, it will impact on buffer board in advance, portion gas impacts under the rebound of buffer board to the second buffer unit later, thus By shock twice, the flow direction of gas is broken up to the state of more disorder, is contacted again with heat exchanger tube later, be ensure that heat exchange Pipe is only capable of being realized the protection of exchange heat pipe by minimum impact force；Secondly as the part disorder of gas flow, makes to bring about the desired sensation The speed of service of body is retarded, and the initial stage that gas flows in cylinder compares traditional approach and more slow, thus with The time of contact of tube end increases, and enhances heat transfer effect；Furthermore since gas is by disorder, so that gas initial stage is in cylinder Intracorporal diffusional area is increased, and the heat exchange efficiency between initial stage and heat exchanger tube is further enhanced；Buffer board has certain Deformability a degree of deformation will occur and then in gas damping of shocks plate so that buffering plate surface becomes The surface of out-of-flatness, it is be more good to the turbulent dispersion effect of gas；The conduction part is to guidance is played the role of, so that part Gas quick flow forward under the guiding of conduction part, the case where so as to avoid gas by excessive turbulence, ensure that gas according to Old there are the movement tendencies of mainstream, so that gas maintains normal flow in cylinder, guarantee heat exchange efficiency.

The buffer unit further includes the multiple support members being connected with the buffer board, and the support member one side and buffer board are connected, One side is globoidal structure setting, which is equipped with rubber layer；The central part of cambered surface is connected with cylinder inboard wall, the both ends of cambered surface There is gap between cylinder inboard wall；Support member carries out buffer board to stablize support, guarantees buffer board when being impacted by gas not Excessive deformation can occur, Rapid reset also may be implemented after deformation, extend the service life of buffer board；And due to the arc of support member There are the gaps of part between face and cylinder inboard wall, support member are generated when buffer board is impacted in cylinder slight Swing, preferably buffering is generated to gas, the turbulent of gas is more abundant；Furthermore due to being provided with rubber layer in cambered surface, from And support member will not generate sound because of the shock with cylinder inboard wall during swing, guarantee that equipment is not in noise.

Welding is fixed with the covering plate of arch on the buffer board, and bonding is fixed with anticollision layer on the covering plate inner wall；It is right It should may be configured as U-shaped structure in the heat exchanger tube at buffer board upper position, so that there is only end sub-fractions for these heat exchanger tubes The case where above buffer board, and the part that covering plate can then exchange heat pipe is blocked, avoiding gas from directly hitting should Part；Under this kind of structure, so that the quantity of heat exchanger tube guarantees heat exchange efficiency, the heat exchanger tube above buffer board without reducing It will not be subjected to impact, extend the service life of heat exchanger tube.

Second buffer unit includes flow distribution plate, the connected locating part of the flow distribution plate and is set on cylinder inboard wall for the limit The limiting slot of position part insertion, the longitudinal cross-section of the flow distribution plate are wavelike structure setting；It is arranged by the corrugated of flow distribution plate, it is right Air-flow carries out further turbulent flow dispersion, and dispersion effect is good.

The deflector includes central axis and the baffle plate on the central axis, which sets for helicoidal structure It sets；Multiple support foot groups that the cylinder inboard wall is equipped with two guide rails and is connected with the guide rail, the support foot group include being respectively arranged on to lead Two rafter foots of rail left and right sides, the rafter foot one end and cylinder inboard wall are connected, and one end and guide rail are connected；The baffle plate is equipped with The strip groove passed through for guide rail and the triangular groove passed through for rafter foot, the triangular groove are connected with the strip groove, a left side for triangular groove The rubber block of triangle is connected separately on right side wall；Localization process is realized to the installation of deflector by sliding rail, guarantees baffling After part is installed, U-shaped heat exchanger tube is between buffer board and shutter；Support foot is supported guide rail, guarantee guide rail with The secured connection of cylinder；Rubber block has deformability, thus guarantee that it will not impact the assembly of deflector, and baffling After part is installed, rubber block can be sealed triangular groove, and gas is avoided directly to pass through from triangular groove, guarantee in cylinder All gas flowed under the guidance of baffle plate, contacted with heat exchanger tube.

The present invention effectively realizes the cooling down to highly pressurised liquid, improves high pressure liquid by the setting of device for cooling The degree of supercooling of body avoids the highly pressurised liquid of reservoir outlet in degree of supercooling deficiency situation because of portions such as device for drying and filtering, solenoid valves The local resistance of part avoids and flashes and cause serious caused by on-way resistance of the liquid storage device to refrigeration pipeline between throttling set The case where influencing unit refrigerating capacity and refrigeration efficiency, effectively improve unit performance and operation stability.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the first embodiment of the invention.

Fig. 2 is the structural schematic diagram of second of embodiment of the invention.

Fig. 3 is the structural schematic diagram of evaporator in the present invention.

Fig. 4 is the decomposition diagram of evaporator in the present invention.

Fig. 5 is the structural schematic diagram that evaporator removes after end cap in the present invention.

Fig. 6 is the side view of Fig. 5.

Fig. 7 is the partial enlarged view in Fig. 6.

Fig. 8 is the structural schematic diagram of the first buffer unit in the present invention.

Fig. 9 is the structural schematic diagram of the second buffer unit in the present invention.

Figure 10 is the structural schematic diagram of deflector in the present invention.

Specific embodiment

As Figure 1-10 shows, a kind of evaporating condensation type water cooler of carrying liqs device for cooling, including compressor 1, Evaporative condenser 2, device for cooling 3, throttling set 5, evaporator 8, the first regulating valve and the second regulating valve, the evaporation Formula condenser 2 is connected with the compressor outlet, and the outlet of device for cooling 3 and the evaporative condenser is connected, throttling set 5 and Device for cooling outlet is connected, and throttling set 5 is connected with evaporator 8 by pipeline, so that above-mentioned component forms one Major loop；First regulating valve is set on pipeline, and a cooling bypass 12, the cooling bypass 12 and steaming are connected on the pipeline It sends out device to be connected, and the bypass part that cools down is penetrated to the device for cooling 3, second regulating valve is set to the cooling bypass 12 On；The above-mentioned compressor 1 referred to, evaporative condenser 2, device for cooling 3, throttling set 5, evaporator 8, the first regulating valve And second regulating valve compressor, evaporative condenser, water cooler, the throttle valve, evaporation respectively purchased on the market Device and regulating valve, structure and principle repeat no more.

Further, it is equipped with solenoid valve 4 between 3 main road of the device for cooling outlet and throttling set 5, to avoid pressure A large amount of high pressure liquid refrigerants when contracting machine is shut down in evaporative condenser, device for cooling and high-pressure liquid tube are through throttling set Severe hydraulic contracting occurs into evaporator, when compressor being caused to be again started up；The evaporative condenser 2 exports cooling down dress It sets and is successively arranged liquid storage device 20 and device for drying and filtering 30 between 3, liquid storage device is used to collect the high pressure that evaporative condenser is condensed Liquid, device for drying and filtering are used to the mechanical admixture of filter bank, remove the moisture content in refrigerant；It is described in other embodiments The bypass 12 that cools down is equipped with bypass throttling set 11；The above-mentioned solenoid valve referred to, liquid storage device, device for drying and filtering are straight on the market It connects buying to obtain, repeat no more；Bypass throttling set is the throttle valve purchased on the market, and structure and principle repeat no more.

By the setting of the first regulating valve, so that there are local resistances on the position of the first regulating valve for pipeline, and throttle There is also pressure-drop in pipeline between device and evaporator, to cool down bypass 12 and pipeline junction is connect with pipeline and evaporator 8 Between there are pressure differences, during the work time so that pipeline in convey low temperature low pressure liquid refrigerants will partially enter to institute It states in cooling bypass 12, exchanges heat with the higher highly pressurised liquid of temperature in device for cooling main road, absorb high pressure liquid body heat Highly pressurised liquid cooling down at low-pressure gas is evaporated to after high-pressure sub-cooled liquid, is entered back into evaporator shell, then with reality by amount Now to the cooling down of highly pressurised liquid.

First regulating valve is used to adjust the refrigerant pressure and evaporator shell refrigerant pressure of throttling set outlet Between pressure difference, the pressure difference increases when the first regulating valve turns down, thus cool down bypass 12 and pipeline junction and evaporator shell it Between refrigerant pressure differential will also increase accordingly, thus flow through device for cooling bypass refrigerant flow will improve；Conversely, drop Refrigerant pressure differential between warm bypass 12 and pipeline junction and evaporator shell is also reduced corresponding, to flow through cooling down The refrigerant flow of device bypass will be reduced；Second regulating valve is used to flow through adjusting low into the low temperature of device for cooling bypass Compression refrigerant flow, refrigerant flow increases when the second regulating valve opens big, and refrigerant flow declines when turning down.

Concrete operating principle are as follows: the pressure high temperature hot gas refrigerant of compressor discharge enters evaporating type condensing when unit is run Device, by heat dissipation to being condensed into highly pressurised liquid after air and recirculated cooling water, after enter through liquid storage device and device for drying and filtering The main road of device for cooling is become high-pressure sub-cooled liquid after the low-temp low-pressure gas-liquid refrigerant cooling in cooling bypass, high Pressure subcooled liquid enters throttling set and is throttled the gas-liquid refrigerant being depressured into low-temp low-pressure, later most of low-temp low-pressure gas-liquid Refrigerant enters the distributor inside evaporator after passing through regulating valve, and low-temp low-pressure gas-liquid refrigerant is divided evenly to evaporation Device axial shell space, relatively high chilled water exchanges heat with heat exchanger tube internal temperature, carries out cooling down to chilled water It is vaporized into low-pressure gas after absorption refrigerating hydro-thermal amount, compressor is come back to later and is compressed into high temperature and high pressure gas, it is so anti- Multiple circulation.

Specifically, the two end cap that the evaporator 8 is connected including cylinder 81 made of metal, respectively with the welding of cylinder both ends 82, the inlet and outlet that are respectively arranged in two end cap, set on the intracorporal tube sheet 84 of cylinder, deflector 85, be arranged in tube sheet and Heat exchanger tube 86 in deflector, the air inlet 87 on cylinder and gas outlet 88 and for entering to cylinder at air inlet 87 The buffer unit that gas in 81 is drained；Preferably, the air inlet 87 and gas outlet 88 are to be obliquely installed；It is described slow Flushing device includes the first buffer unit of corresponding 87 position of air inlet setting and set on the of the first buffer unit side Two buffer units；First buffer unit includes that can impact the lower elastically-deformable buffer board 91 of generation and the buffer board in gas Connected positioning region 92 and the locating slot 93 that positioning region insertion is disclosed on the cylinder inboard wall；The buffer board 91 is by stainless steel It is made, thickness is set to air inlet exit lower position, and 91 one end of buffer board and the positioning region phase in 1-3cm Even, one end bends downward the conduction part 911 to form arc；The positioning region is made of metal comprising plate is inserted with this is connected The linking arm 922 of plate 921 and buffer board, the plate 921 are arcuate structure setting, and the upper end of linking arm and plate are connected, lower end It is connected with buffer board end；Described locating slot one end is closing setting, and the other end is connected with body end surface, is installing baffling After part, positioning region can be aligned to locating slot insertion, realize the installation to buffer board；The deflector 85 includes 851 He of central axis Baffle plate 852 on the central axis, the baffle plate 852 are helicoidal structure setting, which is in contact with baffle plate The shape of one end preferably match with deflector surface so that there is no gaps between buffer board and baffling plate surface.

Further, the buffer unit further includes the multiple metal support members 94 being connected with the buffer board, the support member 94 1 Side and buffer board are connected, and one side is 941 structure setting of cambered surface, which is equipped with rubber layer 942；In cambered surface 941 Center portion is connected with cylinder inboard wall, has gap between the both ends and cylinder inboard wall of cambered surface 941；91 upper surface of buffer board is also logical The metal covering plate 912 that welding is fixed with arch is crossed, bonding is fixed with anticollision layer 913 on the covering plate inner wall, the anticollision layer 913 It is made of rubber.

Second buffer unit includes flow distribution plate 101, the connected locating part 102 of the flow distribution plate and is set on cylinder inboard wall For the limiting slot 103 of locating part insertion, which is made of stainless steel, and the longitudinal cross-section of flow distribution plate is wavy Structure setting；The locating part is made of metal, and limiting slot is set on cylinder, and shape matches with locating part, is installing folding After flowing part, limiting section can be aligned to limiting slot insertion, realize the installation to flow distribution plate.

Multiple support foot groups that 81 inner wall of cylinder is equipped with two guide rails 811 and is connected with the guide rail, multiple support foot groups edge The length direction of guide rail is uniformly distributed, and every group of support foot group includes two rafter foots 812 for being respectively arranged on guide rail left and right sides, this is tiltedly Support foot one end and cylinder inboard wall are connected, and one end and guide rail are connected；Item is equipped with corresponding to the position of guide rail on the baffle plate 852 Shape slot 853 and triangular groove 854, and the triangular groove is connected with the strip groove；During installation, strip groove 853 is worn for guide rail 811 It crosses, triangular groove 854 is passed through for rafter foot；Preferably, bonding is fixed with the rubber of triangle respectively in the left and right sidewall of the triangular groove Blob of viscose 855.

Claims (10)

1. a kind of evaporating condensation type water cooler of carrying liqs device for cooling, it is characterised in that: including compressor (1), with The connected evaporative condenser (2) of the compressor outlet, exported with the evaporative condenser device for cooling (3) being connected, Throttling set (5), the evaporator (8), the first regulating valve, the second regulating valve being connected are exported with the device for cooling；The section Stream device (5) is connected with evaporator (8) by pipeline, which is equipped with cooling bypass (12), which penetrates To the device for cooling (3)；First regulating valve is set on pipeline, and second regulating valve is set to the cooling bypass (12) on；Solenoid valve (4) are equipped between device for cooling (3) the main road outlet and throttling set (5).

2. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 1, it is characterised in that: institute It states and is successively arranged liquid storage device (20) and device for drying and filtering (30) between evaporative condenser (2) outlet device for cooling (3).

3. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 1, it is characterised in that: institute Stating has pressure difference between cooling bypass (12) and pipeline junction and pipeline and evaporator (8) junction, Jie conveyed in pipeline Matter can be entered to partially in the cooling bypass (12).

4. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 3, it is characterised in that: institute The pressure high temperature hot gas refrigerant for stating compressor (1) discharge enters evaporative condenser (1), by heat dissipation to air and circulation Highly pressurised liquid is condensed into after cooling water, after enter in device for cooling (3) through liquid storage device (20) and device for drying and filtering (30), Become high-pressure sub-cooled liquid after low-temp low-pressure gas-liquid refrigerant cooling in cooling bypass, high-pressure sub-cooled liquid enters throttling dress It sets (5) and is throttled decompression into the gas-liquid refrigerant of low-temp low-pressure, most of low-temp low-pressure gas-liquid refrigerant passes through adjusting later Valve (6) enters evaporator (8) inside afterwards, is vaporized into low-pressure gas and comes back in compressor (1).

5. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 1, it is characterised in that: institute It states cooling bypass (12) and is equipped with bypass throttling set (11).

6. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 1, it is characterised in that: institute State evaporator (8) include cylinder (81), set on cylinder both ends end cap (82), the inlet and outlet on end cap, set In the intracorporal tube sheet of cylinder (84), deflector (85), the heat exchanger tube (86) being arranged on tube sheet and deflector, on cylinder into Port (87) and gas outlet (88) and for the buffering for entering to the gas in cylinder (81) at air inlet (87) and being drained Device.

7. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 6, it is characterised in that: institute State the first buffer unit and be set to the first buffer unit side that buffer unit includes corresponding air inlet (87) the position setting Second buffer unit in portion；First buffer unit include can in gas impact it is lower generate elastically-deformable buffer board (91), with The connected positioning region (92) of the buffer board and the locating slot (93) that positioning region insertion is disclosed on the cylinder inboard wall, it is described slow Punching (91) is set to air inlet exit lower position, which is connected with the positioning region, and one end is downward It is bent to form the conduction part (911) of arc；The positioning region (92) includes plate and the company for connecting plate (921) and buffer board Arm (922) are connect, which is arcuate structure setting.

8. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 7, it is characterised in that: institute Stating buffer unit further includes the multiple support members (94) being connected with the buffer board, and support member (94) one side and buffer board are connected, and one Side is cambered surface (941) structure setting, which is equipped with rubber layer (942)；The central part and cylinder of cambered surface (941) Inner wall is connected, and has gap between the both ends and cylinder inboard wall of cambered surface (941).

9. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 7, it is characterised in that: institute The covering plate (912) that welding on buffer board (91) is fixed with arch is stated, bonding is fixed with anticollision layer on the covering plate inner wall (913).

10. the evaporating condensation type water cooler of carrying liqs device for cooling according to claim 7, it is characterised in that: Second buffer unit includes flow distribution plate (101), the connected locating part (102) of the flow distribution plate and is set on cylinder inboard wall for being somebody's turn to do The limiting slot (103) of locating part insertion, the longitudinal cross-section of the flow distribution plate (101) are wavelike structure setting.