CN202915611U - Combination valve for controlling refrigerant fluid of refrigeration air-conditioning system - Google Patents

Abstract

The utility model discloses a combination valve for controlling refrigerant fluid of a refrigeration air-conditioning system. The combination valve comprises an integrated combination valve platform, and the integrated combination valve platform is provided with an inlet and an outlet and connected to a pipe of the refrigeration air-conditioning system through the inlet and the outlet. The combination valve further comprises a plurality of function modules, the plurality of function modules are installed on the combination valve platform and arranged on a refrigerant flow path between the inlet and the outlet in series mode, and the combination valve further comprises a side hole communicated with the refrigerant flow path and located on the combination valve platform.

Description

The combination valve that is used for the refrigerant fluid control of refrigerated air-conditioning system

Technical field

The utility model relates to the refrigeration and air-conditioning technical field, relates in particular to, and is used for the combination valve of the refrigerant fluid control of refrigerated air-conditioning system.

Background technology

Be directed to current refrigerated air-conditioning system, need to be provided with at its pipeline the valve group even the valve station that are formed by a plurality of different by-pass valve controls, to realize controlling accordingly function.

With reference to Fig. 1, for example when feed flow is controlled, often need to have corresponding control valve group to carry out feed flow control.Particularly, pass through successively stop valve 11, filter 12, magnetic valve 13, manual modulation valve 14, stop valve 15 from the cold-producing medium of low pressure recycle bucket 10a, enter afterwards evaporimeter 17; The cold-producing medium that flows out from evaporimeter 17 stop valve 16 of flowing through goes to low pressure recycle bucket 10b.Controller 18 can be based on the temperature sensor 19 control magnetic valves 13 on the evaporimeter 17, with the control feed flow.

By as can be known above-mentioned, the feed flow control action needs a series of control valve collaborative work.Often need to comprise two stop valves 11,15, magnetic valves 13, manual modulation valve 14 and filter 12 for the hydraulic control valve group.Stop valve 11,15 plays the cut-off effect when being used for installation and maintenance, magnetic valve 13 control feed flows, and manual modulation valve 14 is used for equalizing pressure, and filter 12 is for the protection of magnetic valve 13.For these valves are combined, need 10 road welding sequences, this has brought huge workload to installment work.Because solder joint is more, the risk of leakage of bringing is also larger, and 10 solder joints mean that corresponding leak source also has 10.Need to have pipeline to connect between each valve, having of these pipelines may cause hydrops, also increases the Security of the system risk when making troubles to system maintenance.And the insulation between the valve body is also because the existence of a plurality of control valves causes insulation material to be isolated, and in addition, the heat insulation work of control valve itself is also owing to existing the irregular control valve of a plurality of profiles to become very difficult.The pipeline upper valve body is numerous, has caused larger pressure drop and has taken larger installing space.Owing to directly being welded on the pipeline, so these valves are being safeguarded when changing complex procedures.

With reference to Fig. 2, for example when hot gas defrosting, except the demand the same with conventional liquid feeding pipeline, also need to increase check valve 214 and one tunnel drain line on the liquid feeding pipeline, at this moment the layout of pipeline is more complicated.Solder joint is increased at least 12 especially, and the risk of hydrops or leakage is larger.And adopt traditional control valve to control on the hot gas line, also need to adopt two stop valves 210,213, magnetic valves 212 and a filter 211 to form hot gas line valve group, and the air-operated solenoid valve on the suction line or pneumatic type two-step opening magnetic valve 28 often also need to import from here hot gas for driving its normal operation, at this moment, to have 10 solder joints on this hot gas line, this has brought huge workload to installment work.And because solder joint is more, and the risk of leakage of bringing is also larger, 10 solder joints mean that corresponding leak source also has 10.And needing to have pipeline to connect between each valve, having of these pipelines may cause hydrops, also increases the Security of the system risk when making troubles to system maintenance.And the insulation between the valve body is also because the existence of a plurality of control valves causes insulation material to be isolated, and in addition, the heat insulation work of control valve itself is also owing to existing the irregular control valve of a plurality of profiles to become very difficult.The pipeline upper valve body is numerous, has caused larger pressure drop and has taken larger installing space.Owing to directly being welded on the pipeline, so these valves are being safeguarded when changing complex procedures.

Particularly referring to Fig. 2, during refrigeration, low pressure refrigerant liquid from low pressure recycle bucket 20a enters evaporimeter 220 and becomes the low-pressure gas-liquid mix refrigerant through stop valve 21, filter 22, magnetic valve 23, check valve 24, control valve 25, stop valve 26, flowed out by suction line afterwards, go to low pressure recycle bucket 20b.Be provided with stop valve 29, pneumatic type two-step opening magnetic valve 28, stop valve 27 on the described suction line.At this moment, hot gas line close but return line on pneumatic type two-step opening magnetic valve 28 needed sources of the gas from hot gas line.When defrosting, liquid feeding pipeline is closed, the valve group of hot gas through being consisted of by stop valve 210, filter 211, magnetic valve 212, stop valve 213 from compressor exhaust pipe 20c, flow through behind the check valve 214, by 28 cut-offs of pneumatic type two-step opening magnetic valve, enter evaporimeter 220 defrostings, afterwards by flowing into low pressure recycle bucket 20b by overflow valve 215 behind the stop valve 26.All stop valves shown in the figure are safeguarded and the debugging purposes all for installing.Controller 216 is correspondingly controlled pneumatic type two-step opening magnetic valve 28, magnetic valve 23 and magnetic valve 212 according to a plurality of temperature sensors 217,218,219 on the evaporimeter 220.

With reference to Fig. 3, for example when carrying out throttling to circulation barrel, often need to have corresponding control valve group to carry out throttling control.This needs a series of control valve collaborative work.This moment, the control valve group often needed to comprise two stop valves 31,35, magnetic valves 33, motor-driven valve 34 and filter 32 etc.Stop valve 31,35 plays the cut-off effect when being used for installation and maintenance, magnetic valve 33 gauge taps, and motor-driven valve 34 is used for throttling/expansion, and filter 32 is for the protection of magnetic valve and motor-driven valve.For these valves are combined, need 10 road welding sequences, this has brought huge workload to installment work.And because solder joint is more, and the risk of leakage of bringing is also larger, 10 solder joints mean that corresponding leak source also has 10.And needing to have pipeline to connect between each valve, having of these pipelines may cause hydrops, also increases the Security of the system risk when making troubles to system maintenance.And the insulation between the valve body is also because the existence of a plurality of control valves causes insulation material to be isolated, and in addition, the heat insulation work of control valve itself is also owing to existing the irregular control valve of a plurality of profiles to become very difficult.As shown in the figure.The pipeline upper valve body is numerous, has caused larger pressure drop and has taken larger installing space.Owing to directly being welded on the pipeline, so these valves are being safeguarded when changing complex procedures.

Particularly, as shown in Figure 3, high pressure liquid refrigerant fluid process from liquid reservoir 30a comprises that the valve of stop valve 31, filter 32, magnetic valve 33, motor-driven valve 34, stop valve 35 consists of low pressure refrigerant liquid (gas-liquid mixture) and enters low pressure recycle bucket 30b, and further goes to evaporimeter 30c to freeze via stop valve 31f.The low pressure refrigerant gas-liquid mixture fluid that comes flash-pot 30e is got back to low pressure recycle bucket 30b by stop valve 31a and other control valves that may exist.The low pressure refrigerant gas of low pressure recycle bucket 30b is then gone to air intake duct 30d and is flowed back to compressor by another pipeline with stop valve 31c.Two-seater safety valve 39 is used for preventing the overvoltage of low pressure recycle bucket.Liquid-level switch 38 is used for preventing that liquid level is too high in the low pressure recycle bucket 30b, and shut electromagnetic valve 33 when liquid level is too high, protection system safety.Liquid level sensor 37 is used for measuring the liquid level in the low pressure recycle bucket 30b, for the adjusting of 36 pairs of motor-driven valves 34 of controller provides foundation and feedback.Gate gurgle valve 310 is used for getting rid of the lubricating oil that low pressure recycle bucket 30b stockpiles.Needle-valve 311 is used for the setting pressure table, measures the pressure of low pressure recycle bucket 30b.Visor 312 is used for the situation of the fluid of observation low pressure recycle bucket 30b.All stop valve 31a-31f shown in the figure safeguard and the debugging purposes all for installing.

For example the temperature, pressure on suction line is regulated and switching function, often needs to have corresponding control valve group to control, and this needs a series of control valve collaborative work.The control valve group often needed to comprise two stop valves, one and had servo main valve that a plurality of pilot valves can be installed or related pressure/temperature control valve (TCV) etc. this moment.Stop valve plays the cut-off effect when being used for installation and maintenance, control valve is used for the control temperature and pressure and may needs to carry out the force switch etc. of pipeline.For these valves are combined, need at least 6 road welding sequences, this has brought huge workload to installment work.And because solder joint is more, and the risk of leakage of bringing is also larger, 6 solder joints mean that corresponding leak source also has 6.And needing to have pipeline to connect between each valve, having of these pipelines may cause hydrops, also increases the Security of the system risk when making troubles to system maintenance.And the insulation between the valve body is also because the existence of a plurality of control valves causes insulation material to be isolated, and in addition, the heat insulation work of control valve itself is also owing to existing the irregular control valve of a plurality of profiles to become very difficult.The pipeline upper valve body is numerous, has caused larger pressure drop and has taken larger installing space.Owing to directly being welded on the pipeline, so these valves are being safeguarded when changing complex procedures.

For example the two-step opening solenoid control function on suction line often needs to have corresponding control valve group to control, and this needs a series of control valve collaborative work.This moment, the control valve group often needed to comprise two stop valves, a pneumatic type two-step opening magnetic valve etc.Stop valve plays the cut-off effect when being used for installation and maintenance, pneumatic type two-step opening magnetic valve is used for the two-step opening function, prevents liquid hit phenomenon.For these valves are combined, need at least 6 road welding sequences, this has brought huge workload to installment work.And because solder joint is more, and the risk of leakage of bringing is also larger, 6 solder joints mean that corresponding leak source also has 6.And needing to have pipeline to connect between each valve, having of these pipelines may cause hydrops, also increases the Security of the system risk when making troubles to system maintenance.And the insulation between the valve body is also because the existence of a plurality of control valves causes insulation material to be isolated, and in addition, the heat insulation work of control valve itself is also owing to existing the irregular control valve of a plurality of profiles to become very difficult.The pipeline upper valve body is numerous, has caused larger pressure drop and has taken larger installing space.Owing to directly being welded on the pipeline, so these valves are being safeguarded when changing complex procedures.

With reference to Fig. 4, for example when carrying out hydrojet to compressor, often need to have corresponding control valve group to control.This needs a series of control valve collaborative work.This moment, the control valve group often needed to comprise two stop valves 41,44, one motor-driven valves 43, and magnetic valve and filter 42 etc.Stop valve 41,44 plays the cut-off effect when being used for installation and maintenance, the solenoid control switch, and motor-driven valve 43 is used for throttling/expansion, and filter is for the protection of magnetic valve and motor-driven valve.For these valves are combined, need 10 road welding sequences, this has brought huge workload to installment work.And because solder joint is more, and the risk of leakage of bringing is also larger, 10 solder joints mean that corresponding leak source also has 10.And needing to have pipeline to connect between each valve, having of these pipelines may cause hydrops, also increases the Security of the system risk when making troubles to system maintenance.And the insulation between the valve body is also because the existence of a plurality of control valves causes insulation material to be isolated, and in addition, the heat insulation work of control valve itself is also owing to existing the irregular control valve of a plurality of profiles to become very difficult.As shown in the figure.The pipeline upper valve body is numerous, has caused larger pressure drop and has taken larger installing space.Owing to directly being welded on the pipeline, so these valves are being safeguarded when changing complex procedures.

Specifically as shown in Figure 4, the valve group that comprises stop valve 41, filter and magnetic valve 42, motor-driven valve 43, stop valve 44 from the high-pressure refrigerant fluid process of liquid reservoir 40a, become low pressure refrigerant liquid (gas-liquid mixture), enter compressor 47, continue after the evaporation to discharge from the outlet of compressor 47 through compression, carry out afterwards oil content and process 40b.After cold-producing medium compresses in compressor 47, lubricating oil in meeting and the compressor 47 is discharged together, need this moment to adopt oil content to process, the mixture of cold-producing medium and lubricating oil is separated, cold-producing medium is used for refrigeration after separating, and gets back to the functions such as compressor 47 is lubricated after 48 coolings of lubricating oil process oil cooler.Note that because higher through the oil temperature after the oil content processing, need send compressor 47 back to after the cooling, prevent that compressor temperature is too high.Cold-producing medium from low pressure recycle bucket 40c enters compressor 47 through stop valve 49, filter 410.Controller 45 is according to the temperature sensor 46 control motor-driven valves 43 that are arranged on compressor 47 export pipelines.

Therefore, traditional control valve group exists installs difficulty, the insulation difficulty, pressure drop is larger, takies larger installing space, safeguards loaded down with trivial details, change difficult, risk of leakage and the hydrops problem such as have a big risk.In view of this, the necessary combination valve that provides a kind of at least a refrigerant fluid that is used for refrigerated air-conditioning system that can solve in the above-mentioned deficiency to control.

The utility model content

The purpose of this utility model is intended to solve at least one aspect of the above-mentioned problems in the prior art and defective.

The technical problem that (one) will solve

In view of this, main purpose of the present utility model is to provide a kind of combination valve of the refrigerant fluid control for refrigerated air-conditioning system, to realize various monitorings and the control to described system, and realize being easy to install, save the set-up time, be easy to insulation, reduce the pressure drop of valve group, reduce requirements of installation space, easily safeguard and change, improve security of system.

(2) technical scheme

Be at least one aspect in achieving the above object, the technical solution adopted in the utility model is as follows:

The utility model provides a kind of combination valve of the refrigerant fluid control for refrigerated air-conditioning system, described combination valve comprises integrated combination valve platform, described combination valve platform has entrance and exit, is connected to by described entrance and exit on the pipeline of refrigerated air-conditioning system; Wherein, described combination valve also comprises: a plurality of functional modules, described a plurality of functional module is installed on the described combination valve platform and in series is arranged on the refrigerant flowpath between described entrance and the described outlet, and described combination valve also comprises and is positioned on the combination valve platform and the side opening that is communicated with refrigerant flowpath.

Further, described side opening is positioned on the runner that connects adjacent functional module, and comprises that discharge opeing side opening, visual side opening, hot gas guiding side opening, temperature/pressure gauge measure side opening and temperature/pressure sensor and measure any or their combination in the side opening.

Further, described a plurality of functional module comprises the first functional module group and the second functional module group, described the first functional module group comprises that being arranged in abreast successively first of combination valve platform installs lip-deep at least one functional module, the second functional module group comprises that being arranged in abreast successively second of combination valve platform installs lip-deep at least one functional module, and it is a pair of relative outer surface of described combination valve platform that the surface is installed on wherein said the first installation surface and described second.

Further, described each functional module is arranged on the described combination valve platform by the functional module interface on the described combination valve platform.

Further, a functional module in described the first functional module group cooperates by the first area supported on the cylinder chamber in corresponding functional module interface and the combination valve platform, another functional module in described the second functional module group cooperates with second area supported relative with described the first area supported on the described cylinder chamber by corresponding functional module interface, and the functional module in described the first functional module group is communicated with via the runner that passes described cylinder chamber with another functional module in described the second functional module group.

Further, described functional module is connected by the screw on bolt and the combination valve platform by built-in flange, and is provided with on the joint face between described functional module and the combination valve platform for the O shape circle that guarantees sealing.

Further, described combination valve platform is formed by single valve seat or is formed by a plurality of valve seats, and two corresponding functional modules that are positioned on the opposite side of same valve seat consist of a pair of functional module and share a runner.

Further, the refrigerant flowpath in the described combination valve is so that the runner of refrigerant fluid process large tracts of land lower resistance optimization enters next valve seat until flow out the flow path of the process optimal design of combination valve platform.

Further, described combination valve comprises combination valve platform and four functional modules or six functional modules disposed thereon,

When combination valve comprises four functional modules, described the first functional module group comprises the first functional module and the 3rd functional module, described the second functional module group comprises the second functional module and the 4th functional module, and described refrigerant fluid enters first functional module of flowing through successively, the second functional module, the 3rd functional module, the 4th functional module until till flowing out from the outlet of described combination valve platform from entrance;

When combination valve comprises six functional modules, described the first functional module group comprises the first functional module, the 3rd functional module and five-function module, described the second functional module group comprises the second functional module, the 4th functional module and the 6th functional module, and described refrigerant fluid enters first functional module of flowing through successively, the second functional module, the 3rd functional module, the 4th functional module, five-function module, the 6th functional module until till flowing out from the outlet of described combination valve platform from entrance.

Further, when to the evaporimeter feed flow, described the first functional module to the six functional modules on the combination valve platform are respectively scheme a1) to a4) in any:

A1) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, manual adjustments valve module, stop valve module;

A2) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, manual adjustments valve module, stop valve module;

A3) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motorized adjustment valve module, stop valve module;

A4) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motorized adjustment valve module, stop valve module.

Further, when the throttling of carrying out circulation barrel/expansion, described the first functional module to the six functional modules on the combination valve platform are respectively scheme b 1) to b5) in any:

B1) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motor-driven valve module, stop valve module;

B2) stop valve module, filter module, magnetic valve module, the blind plug module of interface, motor-driven valve module, stop valve module;

B3) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motor-driven valve module, stop valve module;

B4) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, electronic expansion valve module, stop valve module;

B5) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, manual adjustments valve module, stop valve module.

Further, when to compressor liquid-spraying, described the first functional module to the six functional modules on the combination valve platform are respectively scheme c1) to c2) in any:

C1) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motor-driven valve module, stop valve module;

C2) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motor-driven valve module, stop valve module.

Further, described combination valve platform is included in the first sub-portfolio valve platform on the liquid line and the second sub-portfolio valve platform on gas piping with the hot gas defrosting of control evaporimeter, be provided with six functional modules on described the first sub-portfolio valve platform, be provided with four functional modules on described the second sub-portfolio valve platform.

Further, six functional modules on described the first sub-portfolio valve platform are respectively scheme d 1) to d2) in any:

D1) stop valve module, filter module, magnetic valve module, check valve module, manual adjustments valve module, stop valve module;

D2) the magnetic valve module of stop valve module, filter module, built-in hand-operated opening device, check valve module, manual adjustments valve module, stop valve module;

Four functional modules on described the second sub-portfolio valve platform are respectively scheme e1) to e3) in any:

E1) stop valve module, filter module, magnetic valve module, stop valve module;

E2) the magnetic valve module of stop valve module, filter module, built-in hand-operated opening device, stop valve module;

E3) stop valve module, filter module, motor-driven valve module, stop valve module.

Further, when on carrying out temperature, pressure adjusting and described combination valve platform four functional modules only being set, described the first functional module to the four functional modules are respectively the blind plug module of temperature/pressure control valve module, stop valve module and interface of stop valve module, temperature/pressure control valve module or built-in hand-operated opening device.

Further, when on carrying out temperature, pressure adjusting and described combination valve platform six functional modules only being set, described the first functional module to the six functional modules are respectively any among the scheme f1-f3:

F1) stop valve module, magnetic valve module, constant voltage module, pressure reduction adjustment module, temperature accuracy control module and stop valve module;

F2) stop valve module, magnetic valve module, inlet pressure adjustment module, pressure reduction adjustment module, temperature accuracy control module and stop valve module; With

F3) stop valve module, magnetic valve module, outlet pressure adjustment module, pressure reduction adjustment module, temperature accuracy control module and stop valve module.

Further, when on carrying out two-step opening function and described combination valve platform four functional modules only being set, described the first functional module to the four functional modules are respectively stop valve module, pneumatic type two-step opening magnetic valve module, stop valve module and the blind plug module of interface.

Further, the combination valve of combination valve platform and functional module composition directly is connected on the described pipeline by TIG weldering, MIG weldering or SMAW weldering.

In sum, combination valve of the present utility model can be used for comprising various freon refrigerants, R717, R744 (CO ₂) and the cold-producing medium of non-corrosive gas and liquid.The application of this combination valve is specifically related to a kind ofly can replace the valve group that must be made of control components and parts or the valve of a plurality of difference in functionalitys in the field of Refrigeration and Air-conditioning with single valve body, for different application scenarios, on hot gas line, liquid line, the pipeline that phase transformation is arranged, gas-liquid coexistence pipeline, gas piping and compressor liquid-spraying pipeline, carry out throttling/expansions, the temperature, pressure in the system in feed flow control, hot gas defrosting, direct expansion, pump circulation or the gravity force liquid-supply circulatory system and regulate and control and the multiple application such as compressor liquid-spraying control.Use by this combination valve, can guarantee under the prerequisites such as the reasonable feed flow of system, normal defrosting, direct expansion, the control of realization temperature, pressure and compressor liquid-spraying, effectively reduce system pressure drop, simplify installation procedure, save installing space, reduce system leak and improve security of system, reduce maintenance time, save the purposes such as cost of labor.

Description of drawings

These and/or other aspect of the present utility model and advantage are from obviously and easily understanding below in conjunction with becoming the accompanying drawing description of preferred embodiments, wherein:

Fig. 1 is the schematic flow sheet of traditional feed liquid way;

Fig. 2 is the schematic flow sheet that traditional hot gas defrosting is controlled automatically;

Fig. 3 is for adopting the conventional valve group to finish the schematic flow sheet of throttling expansion;

The schematic flow sheet that Fig. 4 controls for the hydrojet that adopts the conventional valve group;

Fig. 5 is the schematic diagram of the product design concept of combination valve;

Fig. 6 is the schematic diagram of the chief component of combination valve product;

Fig. 6 a and Fig. 6 b are for demonstrating respectively the schematic diagram of the setting position of side opening of the present utility model;

Fig. 7 a and Fig. 7 b are the schematic diagram of the inner large tracts of land lower resistance of the combination of valve body optimizing flow passage among Fig. 6;

Fig. 8 is one of solution that is used for the control of evaporimeter feed flow;

Fig. 9 is for adopting the schematic flow sheet of the combination valve complete independently feed flow among Fig. 8;

Figure 10 a and 10b are one of solution that is used for the control of evaporimeter hot gas defrosting feed flow;

The schematic flow sheet that Figure 11 controls automatically for the hot gas defrosting that adopts the combination valve among Figure 10 a and the 10b;

Figure 12 is one of solution that is used for circulation barrel throttling control;

Figure 13 finishes the schematic flow sheet of throttling expansion for the combination valve among employing Figure 12;

Figure 14 is one of solution that is used for compressor liquid-spraying control;

The schematic flow sheet that Figure 15 controls for the hydrojet that adopts the combination valve among Figure 14; With

Figure 16 is according to the combination valve platform of an embodiment of the present utility model and the scheme of installation of functional module.

The specific embodiment

Below by embodiment, and 5-16 by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In specification, same or analogous drawing reference numeral is indicated same or analogous parts.Following explanation to the utility model embodiment is intended to overall utility model design of the present utility model is made an explanation with reference to accompanying drawing, and not should be understood to a kind of restriction of the present utility model.

Below with reference to accompanying drawing 5-16 the combination valve according to the refrigerant fluid control for refrigerated air-conditioning system of the present utility model is described.

The combination valve of the refrigerant fluid control that is used for refrigerated air-conditioning system that the utility model provides can be widely used in suction line, liquid line, the hot gas line of refrigerated air-conditioning system and have phase transformation or do not have the biphase gas and liquid flow pipeline of phase transformation.Configuration can realize the continuous adjusting, switch adjusting etc. of refrigerant fluid to this combination valve according to the difference of functional module.

Particularly, the utility model provides a kind of combination valve of the refrigerant fluid control for refrigerated air-conditioning system, described combination valve comprises integrated combination valve platform ICF1, ICF2, described combination valve platform has entrance 1a, 2a and outlet 1b, 2b, is connected on the pipeline (not shown) of refrigerated air-conditioning system by described entrance 1a, 2a and outlet 1b, 2b.Shown in Fig. 6 and Fig. 7 a, 7b, described combination valve also comprises a plurality of functional modules, described a plurality of functional modules are installed on described combination valve platform ICF1, ICF2 is upper and in series be arranged in described entrance and described outlet between refrigerant flowpath L1, L2 on.

Described combination valve also is provided with side opening S, and described side opening S can be arranged on the combination valve platform and be communicated with refrigerant flowpath in the combination valve.Described side opening S can be the function side openings such as discharge opeing side opening, visual side opening, hot gas guiding side opening, temperature/pressure gauge measurement side opening, temperature/pressure sensor measurement.

Particularly, shown in Fig. 6,6a, 6b, described side opening S1/S6, S2/S7, S3/S8, S4/S9, S5/S10 or S1 '/S4 ', S2 '/S5 ', S3 '/S6 ' can be arranged on the opposite side of combination valve platform or its valve body in couples.Certainly, be directed to combination valve platform ICF1 and only demonstrate 3 contralateral exposure S1 '/S4 ', S2 '/S5 ', S3 '/S6 ' are set, demonstrate for combination valve platform ICF2 5 contralateral exposure S1/S6, S2/S7, S3/S8, S4/S9, S5/S10 are set.Be appreciated that the side opening that any amount can be set as required.

Particularly, two side openings among each contralateral exposure S are separately positioned on two surfaces perpendicular to the page of Fig. 6 a and 6b (be combination valve platform about surface) of combination valve platform, and are communicated with flow path L1, L2 in the combination valve platform.

As shown in Figure 6, functional module mounting interface M1 '-M4 ' or M1-M6 are arranged on up and down two surfaces of combination valve platform, and side opening can be arranged on the surface of the left and right sides of combination of valve body, and be connected two adjacent functional module interfaces (for example M2 ' and M3 ', or M2 and M3, or M4 and M5) runner be communicated with, for example be arranged on S2/S7, S4/S9, or S2 '/positions such as S5 '.Certainly, runner P2 or P4 that described side opening S is not limited to be arranged to in the combination valve platform are communicated with, but also can be arranged to as required be connected combination of valve body on a same part up and down two functional module interfaces runner for example P1, P3 or P5 be communicated with, such as being arranged on the positions such as S1 '/S4 ', S3 '/S6 ' or S1/S6, S3/S8, S5/S10.

The side opening that arranges on the combination valve platform can seal by the blind row of filling in of side opening.Shown in Fig. 6 b, take combination valve platform ICF2 as example, can at S1/S6, S2/S7, S3/S8, S4/S9, S5/S10 place, the number of bypass or guiding side opening be set according to the actual requirements.These side openings can be used for following purposes, but are not limited to following listed purposes:

Discharge refrigerant liquid or gas in the combination valve;

The hot gas that exists in the guiding combination valve drives the pneumatic control components and parts as high-pressure air source and moves;

The bypass refrigerant fluid;

External Pressure gauge, monitoring pressure in real time;

External pressure sensor, monitoring pressure in real time;

The external temperature sensor, the Real-Time Monitoring temperature; With

External visual visor, refrigerant fluid state in the real-time visual combination valve.

For example, the side opening of the feed flow combination valve condensating refrigerant that can be used for carrying out behind the hot gas defrosting is discharged; The side opening of hot gas combination valve can provide source of the gas for the pneumatic control components on suction line or other pipelines, drives corresponding control element action.

Combination valve platform ICF1 or ICF2 that the corresponding function module has been installed can adopt the form of welding to be installed on each pipeline of refrigerated air-conditioning system, such as hot gas line, the gas-liquid two-phase pipeline that has phase transformation, gas-liquid two-phase pipeline, liquid line and gas piping.Need not dismounting after functional module is installed, can directly adopt TIG weldering, MIG weldering or SMAW to weld.The functional module of installing on the combination valve platform can not removed, and directly the combination valve platform that functional module has been installed is welded.Therefore the configuration of combination valve can be finished in factory, has avoided the setup error that is easy to occur in the on-the-spot installation, and this is because the installer may not know the order of installation, the technology etc. that does not understand the principle of configuration or be unfamiliar with installation.

This combination valve platform is as the carrier of each functional module, and the combination according to the difference in functionality module of its installation realizes that refrigerant fluid (gas or liquid or biphase gas and liquid flow) guiding function and monitoring function are used in different control to refrigerant fluid.In the utility model, the combination valve that can consist of by the various combination of combination valve platform and functional module and side opening, compactness are realized the functions such as hydrojet control on the temperature, pressure adjusting on refrigerant fluid control, throttling expansion, the suction line in system's feed flow, the hot gas defrosting and unlatching, two-step opening and the compressor liquid-spraying pipeline intensively.By using described combination valve, can reduce the pressure drop of refrigerated air-conditioning system, simplify the installation of control valve group and respective line, minimizing system solder joint reduces risk of leakage, is easy to insulation material is installed, save installing space, reduce the combination valve composing quantity, be easy to the running status of refrigerated air-conditioning system is carried out Real-Time Monitoring, be convenient to safeguard replacing etc.

Can various functional modules be installed at this combination valve platform, such as stop valve module, manual adjustments valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, the magnetic valve module of built-in hand-operated opening device, check valve module, cut-off non-return valve module, motor-driven valve module, the blind plug module of functional module interface, electronic expansion valve module, external connecting function expansion welding module, two-step opening magnetic valve module, many pilot valves interfacing expansion module and the blind plug of side opening etc.By these functional modules are configured and are welded in corresponding gas exhaust piping, suction line, biphase gas and liquid flow pipeline, liquid line and compressor liquid-spraying pipe etc. at integrated combination valve platform, can realize the control of refrigerant fluid in system's feed flow, the hot gas defrosting, to functions such as the function such as circulation barrel throttling expansion, temperature, pressure adjusting on evaporimeter direct expansion, the suction line and the hydrojet control on unlatching, two-step opening and the compressor liquid-spraying pipeline and compressor liquid-sprayings.Described integrated combination valve platform can arrange the functional module interface of abundant or any amount, for example 4 or 6.

On the integrated combination valve platform various functional modules are installed, the combination of practical function module forms the platform that is directed to concrete application, becomes one by the pipeline in direct welding and refrigeration or the air-conditioning system, has good low-pressure drop characteristics.Integrated combination valve platform has correlation function, can effectively realize the refrigerant fluid bypass, the guiding of cold-producing medium hot gas, refrigerant fluid air emptying function.Integrated combination valve platform provides relevant Real-Time Monitoring interface, and side opening S for example can be in real time to the temperature of platform, and the flow regime of pressure and refrigerant fluid is carried out visualizing monitor.

The cold-producing medium of described combination valve work, temperature range and pressure limit are respectively:

Cold-producing medium: be applicable to various existing nonflammable refrigerants, comprise R717, R744 and various non-corrosive gas or liquid.

Temperature range :-60/+120 ° C (76/+248 °F)

Pressure limit: maximum working pressure (MWP) is 52bar g (754psi g).

By increasing side opening design and described in the utility model various relevant for the structural optimization of combination valve, so that the bearing capacity of combination valve has reached 52bar g.(for example application and the carbon dioxide coolant of carbon dioxide coolant on subcritical refrigeration cycle striden mesolow certain applications in the critical refrigeration cycle) had the feasibility of practical application on the engineering so that the application of high-pressure refrigerant for this.

Functional module F is connected with combination of valve body or platform ICF1, ICF2 are connected with functional module by bolt 6, as shown in figure 16.Functional module F in the described integrated combination valve platform and combination valve platform ICF1, interconnection technique between the ICF2 is: the upper flange of one that adopts of functional module F connects design, the built-in flange (not shown) of functional module F and a corresponding side is combined a part that becomes functional module, this built-in flange is connected with sealed inserted piece 3 among Figure 16 by O shape circle 4, sealing plug-in unit 3 can play the effect of sealing when being inserted in the corresponding functional module interface, and the screw 7 be connected with functional module, functional module F and combination valve platform ICF1 correspondingly be set on the combination valve platform of combination valve, the cooperation of therefore being connected with screw by bolt 6 between the ICF2 connects.Connection sealing between functional module F and combination valve platform ICF1, the ICF2 further guarantees by the O type circle 4,5 on the joint face.

Two corresponding modules can share the same part of the valve seat of the valve body 1 in the combination valve platform about the combination valve platform, also therefore share same runner.Through the combination valve runner design of optimizing, shown in Fig. 7 a and 7b, refrigerant fluid will enter next valve seat through the runner of large tracts of land lower resistance optimization until flow out the combination valve platform.

With reference to Fig. 5-6, described combination valve platform ICF1, ICF2 are shown as respectively being provided with 4 or 6 functional module interfaces and install or the accommodation function module being used for.Paper has the combination valve platform ICF1 of 4 functional module interfaces.In Fig. 6 a, be provided with 4 functional module interface M1 ', M2 ', M3 ', M4 ' on the combination valve platform ICF1.Described functional module interface M1 ' and M3 ' are arranged on the upper installation surface (first installs the surface) that shows among Fig. 6 a successively abreast, and functional module interface M2 ' and M4 ' then are arranged on the lower installation surface (second installs the surface) that shows among Fig. 6 a successively abreast.A functional module in described the first functional module group cooperates by the first area supported 8a among the Fig. 6 on the cylinder chamber 8 in corresponding functional module interface M1 ' and the combination valve platform, another functional module in described the second functional module group is shown in Figure 6 with the second area supported 8b(relative with described the first area supported 8a on the described cylinder chamber 8 by corresponding functional module interface M2 ') cooperation, the functional module in described the first functional module group is communicated with via the runner P1 that passes described cylinder chamber 8 with another functional module in described the second functional module group.Arrangement according to such arranges functional module at the second functional module interface M2 ' and the 4th functional module interface M4 ' respectively, is communicated with by runner P3 between them.Described runner P1 and P3 are communicated with by the runner P2 that is arranged in the combination valve platform ICF1 inside.

When combination valve platform ICF2 comprises 6 functional module interface M1-M6, arrange in a similar fashion to get final product.Namely the upper installation surface in Fig. 6 b of combination valve platform ICF2 is provided with the first functional module interface M1, M3, M5, is provided with the second functional module interface M2, M4, M6 on lower installation surface.All be provided with corresponding functional module on the above-mentioned functional module interface M1-M6, and functional module interface M1 and M2 are communicated with by runner P1, functional module interface M3 and M4 are communicated with by runner P3, functional module interface M5 and M6 are communicated with by runner P5, also come respectively connecting passage P1 and P3 by two runner P2 in the combination of valve body and P4 in addition, runner P3 and P5, thus a flow path L2 formed.The utility model design concept is to adopt combination valve platform as shown in Figure 6 that different functional modules is incorporated into together.Its design concept as shown in Figure 5, on platform, can each different submodule be incorporated into together according to the demand that customizes, finish each different combination, these submodules can existing mechanical control module also have electronic control module simultaneously, and this makes platform integrate together electromechanical applications.That is, described modular system comprises special module, general module and all product (duty valve or module) distortion/product families.

Described combination valve platform only has flow path L1, a L2 shown in Fig. 7 a and 7b.Be that cold-producing medium passes the functional module that is installed in functional module interface M1 '-M4 ' or M1-M6 place successively by entrance, until finally flow out from outlet.

Described combination valve platform can as indicated abovely be formed by single valve seat, also can be formed discretely by a plurality of valve seats.When the combination valve platform was formed discretely by a plurality of valve seats, two functional modules that are positioned on the opposite side of same valve seat consisted of a pair of functional module and share a runner.When the combination valve platform is formed by single valve seat, two functional modules that lip-deep correspondence is installed up and down that are separately positioned on that are positioned on the same part of valve seat consist of a pair of functional module and share a runner, for example the first functional module as indicated above and the second functional module, the 3rd functional module and the 4th functional module.Refrigerant flowpath in the described combination valve is through optimal design, so that the runner of refrigerant fluid process large tracts of land lower resistance optimization enters next valve seat until flow out the combination valve platform.

The below will stress the difference of above-mentioned various functional modules arranges how to realize different functions.

The effect of following several functions module at first, is described:

Have stop valve module F1 in the described integrated combination valve, this block configuration can be used for carrying out manual-lock, open operation on the combination valve platform.Described stop valve module is installed on after the combination valve platform, can replace the stop valve in the conventional refrigerated air-conditioning system, has standalone feature, and other modules use together, can replace traditional valve group that is comprised of a plurality of control valves.

Described integrated combination valve has manual adjustments valve module F2, and this block configuration can be used for closing on the combination valve platform, opens, manually Flow-rate adjustment, manually throttling/expansive working.After described manual adjustments valve module is installed on combination of valve body, can replace the manual modulation valve in the conventional refrigerated air-conditioning system, have standalone feature, and other modules use together, can replace traditional valve group that is formed by a plurality of control valves.

Described integrated combination valve has filter module F3, and this block configuration can be used for carrying out filter operation, keep cleannes, protection combination of valve body 1, other modules and the refrigerated air-conditioning system of system on the combination valve platform.After filter module is installed on combination of valve body, can replace the filter in the conventional refrigerated air-conditioning system, have standalone feature, and other modules use together, can replace traditional valve group that is formed by a plurality of control valves.

Described integrated combination valve has magnetic valve module F4, and this block configuration can be used for carrying out automatically controlled On/Off operation on the combination valve platform.After the magnetic valve module is installed on combination of valve body, can replace the magnetic valve in the conventional refrigerated air-conditioning system, have standalone feature, and other modules use together, can replace traditional valve group that is formed by a plurality of control valves.

Described integrated combination valve has the manually opened module F5 of magnetic valve, and this block configuration can be used for the magnetic valve module that manually opened combination valve configures on the combination valve platform.Described integrated combination valve has the magnetic valve module of built-in hand-operated opening device, and this block configuration can have the function of magnetic valve module and have simultaneously manual opening function on the combination valve platform.

Described integrated combination valve has check valve or check valve module F6, and this block configuration can be used for the control refrigerant fluid only along functional module indicated direction one-way flow on the combination valve platform.

Described integrated combination valve has cut-off non-return valve module F7, plays simultaneously the effect of stop valve module or check valve module.The check valve module that described combination valve is required, be installed on combination of valve body after, can replace the check-valves in the conventional refrigerated air-conditioning system, have standalone feature, and other modules use together, can replace traditional valve group that is formed by a plurality of control valves.

Described integrated combination valve has motor-driven valve module F8, to the effect of motorized adjustment refrigerant fluid flow or electric throttling/expansion.After the motor-driven valve module is installed on combination of valve body, can replace the motor-driven valve in the conventional refrigerated air-conditioning system, have standalone feature, and other modules use together, can replace traditional valve group that is formed by a plurality of control valves.

Described integrated combination valve has the blind plug module of functional interface F9, plays the effect of closed platform upper module interface.

Described integrated combination valve has electronic expansion valve module F10, plays the effect of throttling/expansion.After described electronic expansion valve module is installed on combination of valve body, can replace the electric expansion valve in the conventional refrigerated air-conditioning system, have standalone feature, and other modules use together, can replace traditional valve group that is formed by a plurality of control valves.

Described integrated combination valve has external connecting function expansion welding module F11, plays expansion combination valve platform interface, increases the effect of combination valve platform feature.

Described integrated combination valve has pneumatic type two-step opening magnetic valve module, and this module can be used for this combination valve is divided into two-step opening.

It is the temperature, pressure control valve that described integrated combination valve has that this module of many pilot valves interfacing expansion module can be used for the Function Extension of this combination valve, by being installed in 1 on this module, 2 or a plurality of pilot valve are worked the temperature of control system corresponding component, pressure together.Or according to the temperature, pressure situation of system's corresponding component, the opening angle that automatically reaches hand switch and valve that determines valve body is regulated automatically, realizes a plurality of levels adjustings to switch adjusting, ratio adjusting, integral adjustment, proportional integral adjusting and switch, ratio, integration and the proportional integral of refrigerant fluid.

Described integrated combination valve has the blind plug of side opening F12, plays the effect of closed platform upper-side hole.

For concrete installation site and the configuration of functional module, carry out reasonable disposition according to the different occasions of using, can be with reference to figure 9 ~ Figure 16.

The control of evaporimeter feed flow

Fig. 8 is one of solution that can be used for the control of evaporimeter feed flow.When to the evaporimeter feed flow, described the first functional module to the six functional modules of installing on the combination valve platform are respectively scheme a1) to a4) in any:

A1) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, manual adjustments valve module, stop valve module;

A2) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, manual adjustments valve module, stop valve module;

A3) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motorized adjustment valve module, stop valve module;

A4) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motorized adjustment valve module, stop valve module.

Hereinafter with reference to Fig. 8 the combination valve that adopts scheme a1 is described in detail how to carry out feed flow control.

Particularly, have on the combination valve platform of 6 functional module interfaces or the valve body and configure respectively stop valve module 81, filter module 82, the magnetic valve module 83 of built-in hand-operated opening device, the blind plug module 84 of interface, manual adjustments valve module 85, stop valve module 86.Refrigerant liquid from circulation barrel passes through first stop valve module 81, flow through filter module 82 after, control liquid supply rate by the magnetic valve module 83 of built-in hand-operated opening device.Pass through again afterwards manual modulation valve 85 and stop valve 86, finish feed flow control function.Owing to having adopted the magnetic valve module of built-in hand-operated opening device, therefore having adopted the blind plug of interface to close functional module interface more than needed.Here automatically control the evaporimeter feed flow by the magnetic valve module.Can configure as required corresponding side opening, connect temperature/pressure sensor and visor, be used for the flow regime of monitoring refrigerant fluid.In Fig. 8, unnecessary side opening is closed by the blind plug of side opening.

The combination valve that Fig. 8 shows is installed in the system as illustrated in fig. 9.From the cold-producing medium of low pressure recycle bucket 90a enter installation shown in Figure 9 the combination valve platform ICF2(of functional module be combination valve among Fig. 8) entrance, flow out from its outlet through a plurality of functional modules in the combination valve successively afterwards, enter afterwards evaporimeter 93; The cold-producing medium that flows out from the evaporimeter stop valve 92 of flowing through goes to low pressure recycle bucket 90b.Controller 94 can be based on the magnetic valve module in the temperature sensor 95 control combination valves on the evaporimeter 93, with the control feed flow.

Here also can according to actual needs, configure the module of combination valve to realize different purposes to be different from the mode that above illustrates.

The evaporimeter hot gas defrosting

The design of combination valve that can be used for the hot gas defrosting control of evaporimeter adopts the form of the cooperation of two combination valves to control basically.Particularly, one of them combination valve has 6 functional module mounting interfaces, is arranged on the liquid line; And another combination valve has 4 functional module mounting interfaces, is arranged on the gas piping, with the hot gas defrosting of control evaporimeter.

The arrangement of upper 6 functional modules that arrange of described combination valve platform ICF2 with 6 functional module interface M1-M6 is following scheme d 1) to d2) in any:

D1) stop valve module, filter module, magnetic valve module, check valve module, manual adjustments valve module, stop valve module;

D2) the magnetic valve module of stop valve module, filter module, built-in hand-operated opening device, check valve module, manual adjustments valve module, stop valve module;

Have another combination valve platform ICF1 of 4 functional module interface M1 '-M4 ' or four functional modules on the valve body 1 and be respectively scheme e1) to e3) in any:

E1) stop valve module, filter module, magnetic valve module, stop valve module;

E2) the magnetic valve module of stop valve module, filter module, built-in hand-operated opening device, stop valve module;

E3) stop valve module, filter module, motor-driven valve module, stop valve module.

Shown in Figure 10 a and 10b, it has adopted above-mentioned scheme d 1 and the described functional module of scheme e1 to arrange.By comparison diagram 2, Figure 10 a and 10b as can be known, the utility model adopts two combination valves to substitute the conventional valve group.Configure respectively stop valve module 101, filter module 102, magnetic valve module 103, check valve module 104, manual adjustments valve module 105, stop valve module 106 on the combination valve platform ICF2 with 6 functional module interfaces of liquid feeding pipeline.Here automatically control the evaporimeter feed flow by magnetic valve module 103, utilize check valve module 104 to prevent that the defrosting discharge opeing from entering circulation barrel.A side opening of combination of valve body can be used for the discharge opeing of guiding defrosting to suitable vessel, can configure as required corresponding side opening in addition, connects temperature/pressure sensor and visor, is used for the flow regime of monitoring refrigerant fluid.In addition, on the combination valve platform ICF1 with 4 module interfaces of hot gas line, configure respectively stop valve module 107, filter module 108, magnetic valve module 109, stop valve module 111.Here by automatically control defrosting hot gas supply of magnetic valve module 109.A side opening of combination of valve body can be used for guiding hot gas to the air-operated solenoid valve that needs source of the gas, can configure as required corresponding side opening in addition, connects temperature/pressure sensor and visor, is used for the flow regime of monitoring refrigerant fluid.

As shown in figure 11, two combination valves of Figure 10 a and 10b demonstration are installed in the described system.During refrigeration, enter evaporimeter 110 from the refrigerant liquid of low pressure recycle bucket 11a through the combination valve platform ICF2 with 6 functional modules and become the low-pressure gas-liquid mix refrigerant, flowed out by suction line afterwards, go to low pressure recycle bucket 11b.Be provided with stop valve 1102, pneumatic type two-step opening magnetic valve 1103, stop valve 1104 on the described suction line.At this moment, hot gas line close but return line on pneumatic type two-step opening magnetic valve 1103 needed sources of the gas from hot gas line.When defrosting, liquid feeding pipeline is closed, from the hot gas of compressor exhaust pipe 11c via after the combination valve platform ICF1 with four functional modules, the check valve 1106 of flowing through, 1103 places are cut off at pneumatic type two-step opening magnetic valve, enter evaporimeter 110 defrostings, by the stop valve module in the combination valve on the liquid feeding pipeline, ball-cock assembly 1107, finally flow into low pressure recycle bucket 11b afterwards.Illustrated all stop valves are safeguarded and the debugging purposes all for installing.Controller 1108 is correspondingly controlled magnetic valve module in pneumatic type two-step opening magnetic valve 1103, two combination valves according to a plurality of temperature sensors 1109,1111,1110 on the evaporimeter 110.

Also can be according to concrete needs in the practical application, configure flexibly module on the combination valve functional module interface to realize concrete control.

The throttling of circulation barrel/expansion

When the throttling that is used for circulation barrel/expansions controlled, the plan of establishment of the functional module on the combination valve can be adopted scheme b 1) to b5) in any:

B1) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motor-driven valve module, stop valve module;

B2) stop valve module, filter module, magnetic valve module, the blind plug module of interface, motor-driven valve module, stop valve module;

B3) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motor-driven valve module, stop valve module;

B4) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, electronic expansion valve module, stop valve module;

B5) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, manual adjustments valve module, stop valve module.

Figure 12 shows the functional module layout that scheme b 1 shows.Particularly, configure respectively stop valve module 1201, filter module 1202, the magnetic valve module 1203 of built-in hand-operated opening device, the blind plug module 1204 of interface, motor-driven valve module 1205, stop valve module 1206 on the combination valve platform ICF2 of 6 module interfaces having.Here carry out throttling by motor-driven valve module nonstick system of control cryogen.Can configure as required corresponding side opening, connect temperature/pressure sensor and visor, be used for the flow regime of monitoring refrigerant fluid.

When carrying out throttling, such as Figure 13, become low pressure refrigerant liquid (gas-liquid mixture) from the high-pressure refrigerant fluid of liquid reservoir 130a through the combination valve platform ICF2 that functional module has been installed and enter low pressure recycle bucket 1301, and further go to evaporimeter 130c to freeze.The low pressure refrigerant gas-liquid mixture fluid that comes flash-pot 130b is got back to low pressure recycle bucket 1301 by stop valve 1304a and other control valves that may exist.The low pressure refrigerant gas of low pressure recycle bucket 1301 then flows back to compressor by another pipeline (for example air intake duct) 1305.Two-seater safety valve 1309 is used for preventing the overvoltage of low pressure recycle bucket.Liquid-level switch 1308 is used for preventing that low pressure recycle bucket 1301 interior liquid levels are too high, closes the magnetic valve module in the combination valve when liquid level is too high, protection system safety.Liquid level sensor 1303 is used for measuring the liquid level in the low pressure recycle bucket 1301, for the adjusting of the motor-driven valve module in 1302 pairs of combination valves of controller provides foundation and feedback.Gate gurgle valve 1310 is used for getting rid of the lubricating oil that circulation barrel 1301 stockpiles.Needle-valve 1311 is used for the setting pressure table, measures the pressure of low pressure recycle bucket 1301.Visor 1312 is used for the situation of the fluid of observation low pressure recycle bucket 1301.All stop valve 1304a-1304g shown in the figure safeguard and the debugging purposes all for installing.

Hydrojet

When to compressor liquid-spraying, the layout of described the first functional module to the six functional modules on the combination valve is respectively scheme c1) to c2) in any:

C1) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motor-driven valve module, stop valve module;

C2) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motor-driven valve module, stop valve module.

As shown in figure 14, the layout of the functional module on the combination valve adopts scheme c1.On the combination valve platform ICF2 with 6 module interfaces or valve body, configure respectively stop valve module 1401, filter module 1402, magnetic valve module 1403, the manually opened module 1404 of magnetic valve, motor-driven valve module 1405, stop valve module 1406.Here carry out hydrojet control by motor-driven valve module nonstick system of control cryogen.Can configure as required corresponding side opening, connect temperature/pressure sensor and visor, be used for the flow regime of monitoring refrigerant fluid.

Above-mentioned combination valve platform ICF2 is installed in the system, as shown in figure 15.When carrying out hydrojet, become low pressure refrigerant liquid (gas-liquid mixture) from the high-pressure refrigerant fluid of liquid reservoir 150b through combination valve platform ICF2 and enter compressor 1507, continue after the evaporation to discharge from the outlet of compressor 1507 through compression, carry out afterwards oil content and process.After cold-producing medium compresses in compressor 1507, lubricating oil in meeting and the compressor 1507 is discharged together, need this moment to adopt oil content to process, the mixture of cold-producing medium and lubricating oil is separated, cold-producing medium is used for refrigeration after separating, and gets back to the functions such as compressor 1507 is lubricated after 1508 coolings of lubricating oil process oil cooler.Note that because higher through the oil temperature after the oil content processing, need send compressor 1507 back to after the cooling, prevent compressor 1507 excess Temperatures.Cold-producing medium from low pressure recycle bucket 150a enters compressor 1507 through stop valve 1501, filter 1510.Controller 1502 is according to the motor-driven valve module on the temperature sensor 1503 control combination valve platform ICF2 that are arranged on compressor 1507 export pipelines.

Temperature, pressure is regulated

When carrying out the temperature, pressure adjusting, can be arranged to have 4 functional module interfaces on the described combination valve platform, also can be arranged to have 6 functional module interfaces.

Particularly, when on the combination valve four functional modules only being set, described the first functional module to the four functional modules are respectively the blind plug module of temperature/pressure control valve module, stop valve module and interface of stop valve module, temperature/pressure control valve module or built-in hand-operated opening device.

When on the described combination valve platform six functional modules only being set, the layout of described the first to the 6th functional module is respectively any among the scheme f1-f3:

F1) stop valve module, magnetic valve module, constant voltage module, pressure reduction adjustment module, temperature accuracy control module and stop valve module;

F2) stop valve module, magnetic valve module, inlet pressure adjustment module, pressure reduction adjustment module, temperature accuracy control module and stop valve module; With

F3) stop valve module, magnetic valve module, outlet pressure adjustment module, pressure reduction adjustment module, temperature accuracy control module and stop valve module.Can finish the several functions such as the switching of many temperature, temperature, pressure control by the combinations thereof valve.

The two-step opening function

Four functional modules only are set on the described combination valve platform, and described the first functional module to the four functional modules are respectively stop valve module, pneumatic type two-step opening magnetic valve module, stop valve module and the blind plug module of interface, to carry out the two-step opening function.

In the such scheme, described combination valve platform forms an integral body by welding and system pipeline, can be considered a part of system pipeline.When not having the installation function module, can be considered pipeline itself.Described combination valve is with the low temperature carbon steel, be fit to the compatible sealing material of the stainless steel of refrigeration air-conditioner temperature range and various and present ownership cryogen (such as butadiene rubber, non-asbestos material fiber) etc. as the main material of valve body and functional module, realize valve body and functional module material and various existing cold-producing medium, such as compatibilities such as R717, R744, R22, R134a, R404a.

Beneficial effect

Can find out from technique scheme, the utlity model has following beneficial effect:

1, utilizes the combination valve of the refrigerant fluid control that is used for refrigerated air-conditioning system that the utility model provides, can greatly reduce welding sequence, can reduce to 2 solder joints from 12 solder joints traditionally, therefore weld and consuming timely reduced 83%.If adopt TIG welding or MIG welding manner, do not need to dismantle the functional module of having installed in the welding process, then can further shorten weld interval.This all descends the time cost of welding and financial cost greatly.

2, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled, can greatly reduce the risk of leakage of system, because may there be nearly 12 possibility leakage points or more in traditional valve group solution, after adopting combination valve, possible leakage point reduces to 2, therefore the risk of leakage on this pipeline descends up to 83%, has greatly promoted Security of the system.

3, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled, for the insulation of system install brought huge convenient, only need the pipeline at a valve body and valve body two ends is incubated, need to not be incubated respectively for different valve bodies and the pipeline between the valve body.This reduces the unnecessary working time, further prevents loss of refrigeration capacity, reduces system energy consumption.

4, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled, the shared space of by-pass valve control will be greatly less, in corresponding function, might reduce than the form that adopts the conventional valve group by 60% installing space, the compactedness that this improves system can well be applicable to the occasion higher to requirements of installation space.

5, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled, the side opening of its combination valve platform can connect as blowoff valve or discharge opeing exhaust, temperature, Pressure gauge (sensor) interface, not needing increases other welding skirts in addition on pipeline, further reduced the possibility of revealing.

6, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled, can the multistage hydrops pipeline in the conventional valve group be concentrated in the platform valve body, emptying time and degree of difficulty have been greatly reduced, if and have hydrops in the combination of valve body, also can discharge easily by side opening, improve Security of the system.

7, utilize the combination valve of the refrigerant fluid control that is used for refrigerated air-conditioning system that the utility model provides, compare with the valve group that said function is finished in traditional being used for and greatly to reduce the refrigerant fluid pressure drop of flowing through.Compare with traditional form, pressure drop might descend up to 60%.

8, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled safeguards that replacing is very easy, only needs the corresponding functional module of replacing, need not remove combination of valve body.

9, the combination valve that the refrigerant fluid that is used for refrigerated air-conditioning system that utilizes the utility model to provide is controlled has the good system expandability or upgradability.Can by changing functional module, upgrade to automatic control to system by manual control rapidly.Can change the control mode of system by changing functional module, for example change to electronic control by pulse control.

Although some embodiment of this overall utility model design are shown and explanation, those skilled in the art will appreciate that, in the situation of the principle that does not deviate from this overall utility model design and spirit, can make a change these embodiment, scope of the present utility model limits with claim and their equivalent.

Claims (18)

1. combination valve that is used for the refrigerant fluid control of refrigerated air-conditioning system, described combination valve comprises integrated combination valve platform, described combination valve platform has entrance and exit, is connected to by described entrance and exit on the pipeline of refrigerated air-conditioning system; It is characterized in that,

Described combination valve also comprises: a plurality of functional modules, described a plurality of functional module is installed on the described combination valve platform and in series is arranged on the refrigerant flowpath between described entrance and the described outlet, and described combination valve also comprises and is positioned on the combination valve platform and the side opening that is communicated with refrigerant flowpath.

2. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 1 is characterized in that,

Described side opening is positioned on the runner that connects adjacent functional module, and comprises that discharge opeing side opening, visual side opening, hot gas guiding side opening, temperature/pressure gauge measure side opening and temperature/pressure sensor and measure any or their combination in the side opening.

3. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 1 is characterized in that,

Described a plurality of functional module comprises the first functional module group and the second functional module group, described the first functional module group comprises that being arranged in abreast successively first of combination valve platform installs lip-deep at least one functional module, the second functional module group comprises that being arranged in abreast successively second of combination valve platform installs lip-deep at least one functional module, and it is a pair of relative outer surface of described combination valve platform that the surface is installed on wherein said the first installation surface and described second.

4. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 3 is characterized in that,

Described each functional module is arranged on the described combination valve platform by the functional module interface on the described combination valve platform.

5. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 4 is characterized in that,

A functional module in described the first functional module group cooperates by the first area supported on the cylinder chamber in corresponding functional module interface and the combination valve platform, another functional module in described the second functional module group cooperates with second area supported relative with described the first area supported on the described cylinder chamber by corresponding functional module interface, and the functional module in described the first functional module group is communicated with via the runner that passes described cylinder chamber with another functional module in described the second functional module group.

6. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 5 is characterized in that,

Described functional module is connected by the screw on bolt and the combination valve platform by built-in flange, and is provided with on the joint face between described functional module and the combination valve platform for the O shape circle that guarantees sealing.

7. the combination valve of each described refrigerant fluid control for refrigerated air-conditioning system is characterized in that according to claim 1-6,

Described combination valve platform is formed by single valve seat or is formed by a plurality of valve seats, and two corresponding functional modules that are positioned on the opposite side of same valve seat consist of a pair of functional module and share a runner.

8. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 7 is characterized in that,

Refrigerant flowpath in the described combination valve is so that the runner of refrigerant fluid process large tracts of land lower resistance optimization enters next valve seat until flow out the flow path of the process optimal design of combination valve platform.

9. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 8 is characterized in that,

Described combination valve comprises combination valve platform and four functional modules or six functional modules disposed thereon,

When combination valve comprises four functional modules, described the first functional module group comprises the first functional module and the 3rd functional module, described the second functional module group comprises the second functional module and the 4th functional module, and described refrigerant fluid enters first functional module of flowing through successively, the second functional module, the 3rd functional module, the 4th functional module until till flowing out from the outlet of described combination valve platform from entrance;

When combination valve comprises six functional modules, described the first functional module group comprises the first functional module, the 3rd functional module and five-function module, described the second functional module group comprises the second functional module, the 4th functional module and the 6th functional module, and described refrigerant fluid enters first functional module of flowing through successively, the second functional module, the 3rd functional module, the 4th functional module, five-function module, the 6th functional module until till flowing out from the outlet of described combination valve platform from entrance.

10. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

When to the evaporimeter feed flow, described the first functional module to the six functional modules on the combination valve platform are respectively scheme a1) to a4) in any:

A1) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, manual adjustments valve module, stop valve module;

A2) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, manual adjustments valve module, stop valve module;

A3) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motorized adjustment valve module, stop valve module;

A4) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motorized adjustment valve module, stop valve module.

11. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

When the throttling of carrying out circulation barrel/expansion, described the first functional module to the six functional modules on the combination valve platform are respectively scheme b 1) to b5) in any:

B1) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motor-driven valve module, stop valve module;

B2) stop valve module, filter module, magnetic valve module, the blind plug module of interface, motor-driven valve module, stop valve module;

B3) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motor-driven valve module, stop valve module;

B4) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, electronic expansion valve module, stop valve module;

B5) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, manual adjustments valve module, stop valve module.

12. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

When to compressor liquid-spraying, described the first functional module to the six functional modules on the combination valve platform are respectively scheme c1) to c2) in any:

C1) stop valve module, filter module, magnetic valve module, the manually opened module of magnetic valve, motor-driven valve module, stop valve module;

C2) stop valve module, filter module, the magnetic valve module of built-in hand-operated opening device, the blind plug module of interface, motor-driven valve module, stop valve module.

13. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

Described combination valve platform is included in the first sub-portfolio valve platform on the liquid line and the second sub-portfolio valve platform on gas piping with the hot gas defrosting of control evaporimeter, be provided with six functional modules on described the first sub-portfolio valve platform, be provided with four functional modules on described the second sub-portfolio valve platform.

14. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 13 is characterized in that,

Six functional modules on described the first sub-portfolio valve platform are respectively scheme d 1) to d2) in any:

D1) stop valve module, filter module, magnetic valve module, check valve module, manual adjustments valve module, stop valve module;

D2) the magnetic valve module of stop valve module, filter module, built-in hand-operated opening device, check valve module, manual adjustments valve module, stop valve module;

Four functional modules on described the second sub-portfolio valve platform are respectively scheme e1) to e3) in any:

E1) stop valve module, filter module, magnetic valve module, stop valve module;

E2) the magnetic valve module of stop valve module, filter module, built-in hand-operated opening device, stop valve module;

E3) stop valve module, filter module, motor-driven valve module, stop valve module.

15. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

When on carrying out temperature, pressure adjusting and described combination valve platform four functional modules only being set, described the first functional module to the four functional modules are respectively the blind plug module of temperature/pressure control valve module, stop valve module and interface of stop valve module, temperature/pressure control valve module or built-in hand-operated opening device.

16. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

When on carrying out temperature, pressure adjusting and described combination valve platform six functional modules only being set, described the first functional module to the six functional modules are respectively any among the scheme f1-f3:

F1) stop valve module, magnetic valve module, constant voltage module, pressure reduction adjustment module, temperature accuracy control module and stop valve module;

F2) stop valve module, magnetic valve module, inlet pressure adjustment module, pressure reduction adjustment module, temperature accuracy control module and stop valve module; With

F3) stop valve module, magnetic valve module, outlet pressure adjustment module, pressure reduction adjustment module, temperature accuracy control module and stop valve module.

17. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 9 is characterized in that,

When on carrying out two-step opening function and described combination valve platform four functional modules only being set, described the first functional module to the four functional modules are respectively stop valve module, pneumatic type two-step opening magnetic valve module, stop valve module and the blind plug module of interface.

18. the combination valve of the refrigerant fluid control for refrigerated air-conditioning system according to claim 1 is characterized in that,

The combination valve that combination valve platform and functional module form directly is connected on the described pipeline by TIG weldering, MIG weldering or SMAW weldering.

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