CN108131361A - The method of work of temperature control industrial constant-temperature machine with adjustable relief valve hydraulic pressure bypass - Google Patents

The method of work of temperature control industrial constant-temperature machine with adjustable relief valve hydraulic pressure bypass Download PDF

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Publication number
CN108131361A
CN108131361A CN201711217908.8A CN201711217908A CN108131361A CN 108131361 A CN108131361 A CN 108131361A CN 201711217908 A CN201711217908 A CN 201711217908A CN 108131361 A CN108131361 A CN 108131361A
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China
Prior art keywords
hydraulic oil
temperature
oil
reserve tank
fluid
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CN201711217908.8A
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Chinese (zh)
Inventor
黄晓军
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Jiangsu Jinrongsen Refrigeration Technology Co Ltd
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Jiangsu Jinrongsen Refrigeration Technology Co Ltd
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Priority to CN201711217908.8A priority Critical patent/CN108131361A/en
Publication of CN108131361A publication Critical patent/CN108131361A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04Special measures taken in connection with the properties of the fluid
    • F15B21/042Controlling the temperature of the fluid
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/20Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/62Cooling or heating means

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

A kind of temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band of the present invention, it is characterised in that:Step 1: connection equipment heating source (900) and industrial constant-temperature machine;Step 2: during booting, fuel reserve tank temperature sensor (908) or hydraulic oil transfer pipeline temperature sensor (103) first detect fluid temperature, and heating mode is opened when temperature is less than 35 DEG C, and refrigeration mode is opened when temperature is higher than 60 DEG C.The present invention has reliability high, the advantages of being hardly damaged, ensure system stable operation.

Description

The method of work of temperature control industrial constant-temperature machine with adjustable relief valve hydraulic pressure bypass
Technical field
The present invention relates to a kind of method of works of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band.
Background technology
It is well known that oil temperature in hydraulic system optimum temperature is between 35~55 degrees Celsius, once temperature increases to over 60 Degree Celsius, the system working efficiency of hydraulic system will significantly decline and its equipment fault continuously emerges, and cause the stabilization of equipment Property degradation, can not ensure machinery equipment normal operation.In especially season in full summer, high oil temperature or even machine can be caused to set It is standby to be usually in shutdown status.In winter, particularly severe cold area, oil temperature is relatively low, and the oil liquid temperature inside hydraulic system is low, glues Degree is big, poor mobile performance, and working efficiency is also poor, and work is run by force under this environment, may result in hydraulic system member device The failure of part is damaged or even is scrapped.Traditional industrial refrigerating plant does not heat and constant temperature system.
Therefore the stability of industrial constant-temperature machine directly influences the working condition of machinery equipment, in traditional industrial constant-temperature machine When fluid pressure is excessive, directly result in that pressure in heat exchanger is excessive to damage radiator.General radiator is to radiate For the collecting tank of device all there are one the capacity of fixed proportion, fluid has certain big resistance by radiator heat-dissipation channel interior.It Amount of liquid storage it is smaller, do not buffer, encountering the temperature difference is big, low temperature environment, flow are uneven, has certain viscosity liquid, having punching It hits under the fluid situations of power, the pressure of radiator heat-dissipation channel interior also increases therewith, is especially having impact force and viscosity to compare In the case of big fluid, since fluid is in the resistance of channel interior, fluid is prevented to be allowed to from running through inside radiator passage Pressure increases, and more than the highest operating pressure of radiator, radiator is easy to damage, scrap.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of reliability height, are hardly damaged, and ensure that system stablizes fortune The temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of capable band.
The object of the present invention is achieved like this:
A kind of method of work of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band, it is characterised in that:
Step 1: connection equipment heating source and industrial constant-temperature machine;
The hydraulic oil oil inlet and hydraulic oil oil outlet of the hydraulic oil transfer pipeline of industrial constant-temperature machine pass through hydraulic oil respectively Oil inlet hose connects the hydraulic oil drain line in equipment heating source and hydraulic oil oil return line with hydraulic oil oil outlet hose;
Step 2: after equipment heating source brings into operation, the hydraulic oil of second fluid chamber of fuel reserve tank goes out by fuel reserve tank Oil pipe line supply arrangement heat generating device, the hydraulic oil in equipment heating device drain into the of fuel reserve tank by fuel reserve tank oil inlet pipe One fluid chamber, the hydraulic oil of first fluid chamber is successively by hydraulic oil drain line, hydraulic oil oil inlet hose, liquid Pressure oil transfer pipeline, hydraulic oil oil outlet hose and hydraulic oil oil return line are back to second fluid chamber of fuel reserve tank;
During booting, fuel reserve tank temperature sensor or hydraulic oil transfer pipeline temperature sensor first detect fluid temperature, when Temperature opens heating mode when being less than 35 DEG C, and refrigeration mode is opened when temperature is higher than 60 DEG C;
Industrial constant-temperature machine includes a hydraulic oil transfer pipeline, from hydraulic oil oil inlet to liquid on the hydraulic oil transfer pipeline Hydraulic oil transfer pipeline delivery pump, radiator, heat-exchanger rig and tube heater are disposed between pressure oil oil outlet, is radiated The side of device is provided with cooling fan,
Hydraulic oil transfer pipeline temperature sensor is additionally provided on hydraulic oil transfer pipeline wherein in front of radiator, is radiated Be provided with the first solenoid valve of hydraulic oil transfer pipeline on hydraulic oil transfer pipeline between device and heat-exchanger rig, in front of radiator and One is arranged in parallel on the hydraulic oil transfer pipeline at the first solenoid valve rear and carries hydraulic oil transfer pipeline second solenoid valve Hydraulic oil conveying bypass;
The upper heat exchange connector of the heat-exchanger rig is connected with heat exchanging pipe between lower heat exchange connector, on heat exchanging pipe It is provided with gas-liquid separator, compressor, condenser, heat exchanging pipe by-passing valve, four-way valve, the first check valve, the first liquid storage device, It is one device for drying and filtering, the first heat exchanging pipe solenoid valve, first throttling device, the second check valve, the second liquid storage device, second dried Four ends up and down of filter, the second heat exchanging pipe solenoid valve and second throttling device, wherein four-way valve are respectively provided with A mouthfuls, B Mouthful, C mouthfuls and D mouthfuls, E reversal valves are provided in four-way valve;Heat exchanging pipe by-passing valve is connected to compressor and gas-liquid separator Between import;
Refrigeration mode:Heat-exchanger rig, gas-liquid separator, compressor, condenser, four-way valve, are provided on refrigeration pipeline One check valve, the first liquid storage device, the first device for drying and filtering, the first heat exchanging pipe solenoid valve and first throttling device;
The operation principle of refrigeration pipeline:
Automatically controlled instruction of freezing requires compressor operating refrigerant sequence, and the first heat exchanging pipe solenoid valve is opened, the second heat exchanger tube Way solenoid valve is closed, four-way valve power-off, and the E reversal valves in four-way valve are closed;Compressor operating compresses refrigerant high temperature and pressure gas Body is successively by A mouthfuls of four-way valve, D mouthfuls of four-way valve, condenser, the first check valve, the first liquid storage device, the first device for drying and filtering, the Pressure is back to after one heat exchanging pipe solenoid valve, first throttling device, heat-exchanger rig, B mouthfuls of four-way valve, C mouthfuls of four-way valve, gas-liquid separator Contracting machine;Wherein:For cooling down the high-temperature high-pressure refrigerant gas of compression, the first liquid storage device is used to detach refrigerant gas condenser And liquid, first throttling device become low pressure refrigerant liquid for high pressure refrigerant liquid, heat-exchanger rig is used for low voltage refrigeration Agent liquid evaporation absorbs heat and becomes low pressure refrigerant gas;
Heating mode:Heat-exchanger rig, gas-liquid separator, compressor, condenser, four-way valve, the are provided on heating pipeline Two check valves, the second liquid storage device, the second device for drying and filtering, the second heat exchanging pipe solenoid valve and second throttling device;
Heat the operation principle of pipeline:
Heating automatically controlled instruction requires compressor operating to heat program, and the first heat exchanging pipe solenoid valve is closed, the second heat exchanger tube Way solenoid valve is opened, and four-way valve is powered, and the E reversal valves in four-way valve are opened;Compressor operating compresses refrigerant high temperature and pressure gas Body successively by A mouthfuls of four-way valve, B mouthfuls of four-way valve, heat-exchanger rig, the second check valve, the second liquid storage device, the second device for drying and filtering, Pressure is back to after second heat exchanging pipe solenoid valve, second throttling device, condenser, D mouthfuls of four-way valve, C mouthfuls of four-way valve, gas-liquid separator Contracting machine;
Wherein:Heat-exchanger rig becomes higher pressure refrigerant gas for high-temperature high-pressure refrigerant gas condensed absorbent heat, the For two liquid storage devices for detaching refrigerant gas and liquid, second throttling device becomes low pressure refrigerant for higher pressure refrigerant gas Gas;
The first solenoid valve of hydraulic oil transfer pipeline and hydraulic oil transfer pipeline second solenoid valve are heated and are made in heat exchanging pipe When cold, action is depending on environment temperature;
Refrigeration mode:When fluid temperature is higher than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is opened, and hydraulic oil is defeated Pipeline second solenoid valve is sent to close;When fluid temperature is lower than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is closed, hydraulic pressure Oily transfer pipeline second solenoid valve is opened;
Heating mode:When fluid temperature is higher than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is closed, and hydraulic oil is defeated Pipeline second solenoid valve is sent to open;When fluid temperature is lower than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is opened, hydraulic pressure Oily transfer pipeline second solenoid valve is closed.
Equipment heating source includes equipment heating device and fuel reserve tank, and one piece is provided in the liquid reserve tank and is vertically arranged Partition board, partition board will in liquid reserve tank be respectively two fluid chambers, first fluid chamber be provided with fuel reserve tank oil inlet and The oil discharge outlet of fuel reserve tank, second fluid chamber are provided with the oil outlet of fuel reserve tank and the oil return opening of fuel reserve tank, fuel reserve tank The oil outlet of oil discharge outlet and fuel reserve tank is both provided with filter, the oil outlet of equipment heating device and the oil inlet of fuel reserve tank it Between be connected with fuel reserve tank oil inlet pipe, the oil discharge outlet of fuel reserve tank draws hydraulic oil drain line, the oil inlet of equipment heating device Fuel reserve tank oil outlet pipe is connected between the oil outlet of fuel reserve tank, is set in fuel reserve tank oil inlet pipe or fuel reserve tank oil outlet pipe Fuel reserve tank oil-way circulation pump is equipped with, the oil return opening of fuel reserve tank draws hydraulic oil oil return line, first fluid chamber of fuel reserve tank There are one fuel reserve tank temperature sensors for interior setting;
The hydraulic oil oil inlet and hydraulic oil oil outlet of the hydraulic oil transfer pipeline are soft by hydraulic oil oil inlet respectively Pipe connects the hydraulic oil drain line in equipment heating source and hydraulic oil oil return line with hydraulic oil oil outlet hose;The tubular type adds Hot device includes tube heater cylinder, and the first liquid port and second liquid arranged up and down are provided on tube heater cylinder Mouthful, the main body of electric heating tube is located at tube heater inner barrel center, is located at electric heating tube in the tube heater cylinder The region in outside is provided with the flow channel for liquids from the first liquid port to second liquid mouth, is arranged in parallel on the oil circuit at radiator both ends Have an adjustable relief valve, the adjustable relief valve include outer housing, inner housing, piston, two springs, two adjusting blocks and Two adjusting nuts, the outer housing lateral arrangement, the interior outer housing fluid channel for forming a lateral direction penetrating of the outer housing, Fluid passageways chamber is provided in the middle part of the outer housing, the internal diameter of Fluid passageways chamber is more than the outer diameter of outer housing fluid channel, stream Body passageway intracavitary is fixedly installed one piece of separation ring flat-plate, separates ring flat-plate and Fluid passageways chamber is separated to form two Fluid passageways in left and right Half chamber, left section and right section of the outer housing are symmetrical arranged there are one nut groove, and the piston is horizontally set at outer housing fluid The middle part of channel, set gradually from inside to outside respectively in the outer housing fluid channel at left and right sides of piston spring, adjusting block and Inner housing, the outer end of two springs connect the inner end of two adjusting blocks, are revolved respectively in the outer section of two adjusting blocks and be equipped with two respectively A adjusting nut, adjusting block and adjusting nut thread fitting, adjusting nut are limited in nut groove, the inner face of adjusting block with it is outer There are gaps between housing, and there are gap between the outer end face and inner housing of adjusting block, the piston is left and right ends opening Hollow structure, the piston include piston shell, one piece of partition board being vertically arranged, partition board are provided in the middle part of the piston shell The inside of piston is divided into the two piston fluid channels being in communication with the outside respectively in left and right, the piston at left and right sides of partition board The fluid bore being arranged symmetrically is provided on housing.
The outer end inner wall of inner housing is provided with connection screw thread.
Hollow out at the outer housing of adjusting nut front and rear surfaces, the outer surface of adjusting nut are provided with graduation mark.
The internal diameter for separating ring flat-plate is consistent with the internal diameter of outer housing fluid channel.
The outer diameter of spring is matched with the internal diameter of outer housing fluid channel.
The fluid bore is circular layout on piston shell.
Fluid bore of the partition board per side is provided with multi-turn.
The fluid bore of left end is not more than the transverse direction of half chamber of Fluid passageways to the lateral distance between the fluid bore of right end Distance.
The left and right ends of the piston are provided with the step coordinated with spring.
Inner seal ring is provided between the inner segment outer wall and outer housing of adjusting block, between the outer section inner wall inner housing of adjusting block It is provided with exterior seal ring.
Compared with prior art, the beneficial effects of the invention are as follows:
At summer, hydraulic work system, oil temperature is more than the technological temperature of setting, and industrial constant-temperature device automatic running drops The oil temperature of low hydraulic work system reaches required technological temperature, and in winter, the oil temperature of hydraulic system is less than technological temperature, work Industry thermostat automatic running by compression mechanism hot systems and corresponding tube heater auxiliary heating system, reaches required Technological temperature, and constant temperature is in desired Process temperature ranges.By tubing type compressor heating system, energy-saving and environmental protection, Low-carbon, Energy Efficiency Ratio is high, is saved greatly the energy, efficiently oil liquid temperature is made quickly to increase, also to fluid thermal energy referral Fluid can be made to undergo no deterioration and be carbonized, it is service life to extend fluid.The present invention has reliability high, is hardly damaged, and protects The advantages of demonstrate,proving system stable operation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the internal structure schematic diagram of adjustable relief valve.
Fig. 3 is the outline structural diagram of adjustable relief valve.
Fig. 4 is the section plan of housing.
Fig. 5 is the section plan of piston.
Fig. 6 is the half-sectional explosive view of plane of adjustable relief valve.
Fig. 7 is the half-sectional explosive view of solid of adjustable relief valve.
Fig. 8 is the schematic diagram of embodiment 1.
Fig. 9 is the schematic diagram of embodiment 2.
Figure 10 is the structure diagram of tube heater.
Figure 11 is the explosive view of Figure 10.
Figure 12 is the tube heater sectional view that flow channel for liquids selects spiral separating liquid piece.
Figure 13 is the liquid flow graph for the tube heater that flow channel for liquids selects spiral separating liquid piece.
Figure 14 is the tube heater sectional view that flow channel for liquids selects parallel separating liquid piece.
Figure 15 is the liquid flow graph for the tube heater that flow channel for liquids selects parallel separating liquid piece.
Figure 16 is the schematic diagram of the heat exchanging pipe in Fig. 1.
Figure 17 is the schematic diagram of the four-way valve in Figure 16.
Wherein:
Hydraulic oil transfer pipeline 100, hydraulic oil transfer pipeline delivery pump 101, heat-exchanger rig 102, hydraulic oil transfer pipeline Temperature sensor 103, the first solenoid valve of hydraulic oil transfer pipeline 104, hydraulic oil transfer pipeline second solenoid valve 105, hydraulic oil Conveying bypass 106
Heat exchanging pipe 200, gas-liquid separator 201, compressor 202, condenser 203, heat exchanging pipe by-passing valve 204, four-way Valve 205, the first check valve 206, the first liquid storage device 207, the first device for drying and filtering 208, the first heat exchanging pipe solenoid valve 209, One throttling set 210, the second check valve 211, the second liquid storage device 212, the second device for drying and filtering 213, the second heat exchanging pipe electromagnetism Valve 214, second throttling device 215
Tube heater 4, tube heater cylinder 401, the first liquid port 402, second liquid mouth 403, lower flange 404, Upper flange 405, electric heating tube 406, power protection box 407, installation screw socket 408, crash roll retainer plate 409, tube heater cylinder Body fixed screw 410, crash roll 411, spiral separating liquid piece 412, parallel separating liquid piece 413
Radiator 5
Adjustable relief valve 7, outer housing fluid channel 701.1, Fluid passageways chamber 701.2, separates ring flat-plate at outer housing 701 701.3rd, nut groove 701.4, inner housing 702, piston 703, piston shell 703.1, partition board 703.2, fluid bore 703.3, step 703.4th, piston fluid channel 703.5, spring 704, adjusting block 705, adjusting nut 706, connection bolt 707, inner seal ring 708th, exterior seal ring 709
Equipment heating source 900, equipment heating device 901, fuel reserve tank 902, fuel reserve tank oil inlet pipe 903, hydraulic oil oil extraction Pipeline 904, fuel reserve tank oil outlet pipe 905, fuel reserve tank oil-way circulation pump 906, hydraulic oil oil return line 907, fuel reserve tank temperature pass Sensor 908.
Specific embodiment
Referring to Fig. 1~Figure 17, a kind of temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band of the present invention, It includes a hydraulic oil transfer pipeline 100, from hydraulic oil oil inlet to hydraulic oil oil outlet on the hydraulic oil transfer pipeline 100 Between be disposed with hydraulic oil transfer pipeline delivery pump 101, radiator 5, heat-exchanger rig 102 and tube heater 4, radiator 5 side is provided with cooling fan,
Wherein hydraulic oil transfer pipeline temperature sensor is additionally provided on the hydraulic oil transfer pipeline 100 in 5 front of radiator 103, the first electromagnetism of hydraulic oil transfer pipeline is provided on the hydraulic oil transfer pipeline 100 between radiator 5 and heat-exchanger rig 102 One has been arranged in parallel with liquid on the hydraulic oil transfer pipeline 100 at valve 104,5 front of radiator and 104 rear of the first solenoid valve The hydraulic oil conveying bypass 106 of pressure oil transfer pipeline second solenoid valve 105;
The upper heat exchange connector of the heat-exchanger rig 102 is connected with heat exchanging pipe 200 between lower heat exchange connector, exchanges heat Be provided on pipeline 200 gas-liquid separator 201, compressor 202, condenser 203, heat exchanging pipe by-passing valve 204, four-way valve 205, First check valve 206, the first liquid storage device 207, the first device for drying and filtering 208, the first heat exchanging pipe solenoid valve 209, first throttle Device 210, the second check valve 211, the second liquid storage device 212, the second device for drying and filtering 213, the second heat exchanging pipe solenoid valve 214 with And second throttling device 215, four ends up and down of wherein four-way valve 205 are respectively provided with A mouthfuls, B mouthfuls, C mouthfuls and D mouthfuls, four-way E reversal valves are provided in valve 205;Heat exchanging pipe by-passing valve 204 be connected to compressor 202 and gas-liquid separator 201 import it Between;
Heat exchanging pipe 200 as needed refrigeration pipeline and heating pipeline between switch over be respectively formed refrigeration mode and Heating mode;
Refrigeration mode:Heat-exchanger rig 102, gas-liquid separator 201, compressor 202, condenser are provided on refrigeration pipeline 203rd, four-way valve 205, the first check valve 206, the first liquid storage device 207, the first device for drying and filtering 208, the first heat exchanging pipe electromagnetism Valve 209 and first throttling device 210;
The operation principle of refrigeration pipeline:
Automatically controlled instruction of freezing requires compressor operating refrigerant sequence, and the first heat exchanging pipe solenoid valve 209 is opened, the second heat exchange Pipeline electromagnetic valve 214 is closed, and four-way valve 205 powers off, and the E reversal valves in four-way valve 205 are closed;Compressor operating, compression refrigeration Agent high temperature and high pressure gas is successively by A mouthfuls of four-way valve, D mouthfuls of four-way valve, condenser, the first check valve, the first liquid storage device, first dry Dry filter, the first heat exchanging pipe solenoid valve, first throttling device, heat-exchanger rig, B mouthfuls of four-way valve, C mouthfuls of four-way valve, gas-liquid point From being back to compressor after device;Wherein:For cooling down the high-temperature high-pressure refrigerant gas of compression, the first liquid storage device is used to divide condenser From refrigerant gas and liquid, first throttling device becomes low pressure refrigerant liquid, heat-exchanger rig for high pressure refrigerant liquid Heat, which is absorbed, for low pressure refrigerant liquid evaporation becomes low pressure refrigerant gas;
Heating mode:Heat-exchanger rig 102, gas-liquid separator 201, compressor 202, condenser are provided on heating pipeline 203rd, four-way valve 205, the second check valve 211, the second liquid storage device 212, the second device for drying and filtering 213, the second heat exchanging pipe electromagnetism Valve 214 and second throttling device 215;
Heat the operation principle of pipeline:
Heating automatically controlled instruction requires compressor operating to heat program, and the first heat exchanging pipe solenoid valve 209 is closed, the second heat exchange Pipeline electromagnetic valve 214 is opened, and four-way valve 205 is powered, and the E reversal valves in four-way valve 205 are opened;Compressor operating, compression refrigeration Agent high temperature and high pressure gas is successively by A mouthfuls of four-way valve, B mouthfuls of four-way valve, heat-exchanger rig, the second check valve, the second liquid storage device, second Device for drying and filtering, the second heat exchanging pipe solenoid valve, second throttling device, condenser, D mouthfuls of four-way valve, C mouthfuls of four-way valve, gas-liquid point From being back to compressor after device;
Wherein:Heat-exchanger rig becomes higher pressure refrigerant gas for high-temperature high-pressure refrigerant gas condensed absorbent heat, the For two liquid storage devices for detaching refrigerant gas and liquid, second throttling device becomes low pressure refrigerant for higher pressure refrigerant gas Gas;
The first solenoid valve of hydraulic oil transfer pipeline 104 and hydraulic oil transfer pipeline second solenoid valve 105 are in heat exchanging pipe 200 When heating and refrigeration, action is depending on environment temperature;
Refrigeration mode:When fluid temperature is higher than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline 104 is opened, hydraulic pressure Oily transfer pipeline second solenoid valve 105 is closed;When fluid temperature is lower than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline 104 close, and hydraulic oil transfer pipeline second solenoid valve 105 is opened;
Heating mode:When fluid temperature is higher than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline 104 is closed, hydraulic pressure Oily transfer pipeline second solenoid valve 105 is opened;When fluid temperature is lower than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline 104 open, and hydraulic oil transfer pipeline second solenoid valve 105 is closed;
Equipment heating source 900 includes equipment heating device 901 and fuel reserve tank 902, and one is provided in the liquid reserve tank 902 The partition board that block is vertically arranged, partition board will be respectively two fluid chambers in liquid reserve tank 902, and first fluid chamber is provided with oil storage The oil inlet of case 902 and the oil discharge outlet of fuel reserve tank 902, second fluid chamber be provided with fuel reserve tank 902 oil outlet and The oil return opening of fuel reserve tank 902, the oil discharge outlet of fuel reserve tank 902 and the oil outlet of fuel reserve tank 902 are both provided with filter, equipment hair Fuel reserve tank oil inlet pipe 903, the row of fuel reserve tank 902 are connected between the oil outlet of thermal 901 and the oil inlet of fuel reserve tank 902 Hydraulic fluid port draws hydraulic oil drain line 904, is connected between the oil inlet of equipment heating device 901 and the oil outlet of fuel reserve tank 902 There is fuel reserve tank oil outlet pipe 905, fuel reserve tank oil circuit is provided in fuel reserve tank oil inlet pipe 903 or fuel reserve tank oil outlet pipe 905 Circulating pump 906, the oil return opening of fuel reserve tank 902 draw hydraulic oil oil return line 907, in first fluid chamber of fuel reserve tank 902 There are one fuel reserve tank temperature sensors 908 for setting.
The hydraulic oil oil inlet and hydraulic oil oil outlet of the hydraulic oil transfer pipeline 100 pass through hydraulic oil oil inlet respectively Hose connects the hydraulic oil drain line 904 in equipment heating source 900 and hydraulic oil oil return line with hydraulic oil oil outlet hose 907。
A kind of method of work of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band:
Step 1: connection equipment heating source 900 and industrial constant-temperature machine;
The hydraulic oil oil inlet and hydraulic oil oil outlet of the hydraulic oil transfer pipeline 100 of industrial constant-temperature machine pass through hydraulic pressure respectively Oily oil inlet hose connects the hydraulic oil drain line 904 in equipment heating source 900 with hydraulic oil oil outlet hose and hydraulic oil returns Oil pipe line 907;
Step 2: after equipment heating source 900 brings into operation, the hydraulic oil of 902 second fluid chambers of fuel reserve tank is by storage 905 supply arrangement heat generating device 901 of fuel tank oil outlet pipe, the hydraulic oil in equipment heating device 901 pass through fuel reserve tank oil inlet pipe Road 903 drains into first fluid chamber of fuel reserve tank 902, and the hydraulic oil of first fluid chamber passes through hydraulic oil oil exit pipe successively Road 904, hydraulic oil oil inlet hose, hydraulic oil transfer pipeline 100, hydraulic oil oil outlet hose and hydraulic oil oil return line 907 are back to second fluid chamber of fuel reserve tank 902;
During booting, fuel reserve tank temperature sensor 908 or hydraulic oil transfer pipeline temperature sensor 103 first detect liquid temperature Degree opens heating mode when temperature is less than 35 DEG C, and refrigeration mode is opened when temperature is higher than 60 DEG C.
The adjustable relief valve 7 includes outer housing 701, inner housing 702,703, two, piston, 704, two, spring and adjusts Block 705 and two adjusting nuts 706,701 lateral arrangement of outer housing, one transverse direction of the interior formation of the outer housing 701 are passed through Logical outer housing fluid channel 701.1, the middle part of the outer housing 701 are provided with Fluid passageways chamber 701.2, Fluid passageways chamber 701.2 internal diameter is more than the outer diameter of outer housing fluid channel 701.1, and one piece of separation is fixedly installed in Fluid passageways chamber 701.2 Ring flat-plate 701.3, the internal diameter for separating ring flat-plate 701.3 is consistent with the internal diameter of outer housing fluid channel 701.1, and separating ring flat-plate 701.3 will Fluid passageways chamber 701.2 is separated to form two half chambers of Fluid passageways in left and right, and left section and right section of the outer housing 701 is symmetrical arranged There are one nut grooves 701.4.The piston 703 is horizontally set at the middle part of outer housing fluid channel 701.1, piston 703 or so Set gradually spring 704, adjusting block 705 and inner housing in the outer housing fluid channel 701.1 of both sides from inside to outside respectively 702, the outer diameter of spring 704 is matched with the internal diameter of outer housing fluid channel 701.1.The outer end of two springs 704 connects two respectively The inner end of a adjusting block 705, rotation puts that there are two adjusting nut 706, adjusting nuts 706 respectively in the outer section of two adjusting blocks 705 Hollow out at the outer housing 701 of front and rear surfaces, the outer surface of adjusting nut 706 are provided with graduation mark, adjusting block 705 and adjusting nut 706 thread fittings, adjusting nut 706 are limited in nut groove 701.4, and adjusting block can be adjusted by putting adjusting nut 706 by rotation 705 lateral distance so as to the elastic potential energy of adjustment spring 704, can control fluid in outer shell fluid channel 701.1 Pressure release value.Inner housing 702 is fixed with outer housing 701 by connecting bolt 707, and the outer end inner wall of inner housing 702 is provided with connection Screw thread is provided with inner seal ring 708, the outer section inner wall of adjusting block 705 between the inner segment outer wall of adjusting block 705 and outer housing 701 Exterior seal ring 709 is provided between inner housing 702, there are gaps between the inner face of adjusting block 705 and outer housing 701, adjust There are gaps between the outer end face of block 705 and inner housing 702.
The piston 703 is the hollow structure of left and right ends opening, and the piston 703 includes piston shell 703.1, described The middle part of piston shell 703.1 is provided with one piece of partition board being vertically arranged 703.2, partition board 703.2 by the inside points of piston 703 every For the two piston fluid channels 703.5 being in communication with the outside respectively in left and right, the piston shell positioned at 703.2 left and right sides of partition board It is provided with the fluid bore 703.3 being arranged symmetrically on 703.1, the fluid bore 703.3 is circular layout on piston shell 703.1, Fluid bore 703.3 of the partition board 703.2 per side can be provided with multi-turn, and the one of left end encloses fluid bore 703.3 to right end Lateral distance between one circle fluid bore 703.3 is not more than the lateral distance of half chamber of Fluid passageways.The left and right two of the piston 703 End is provided with the step 703.4 coordinated with spring 704.
The tube heater 4 includes tube heater cylinder 401, and cloth up and down is provided on tube heater cylinder 401 The first liquid port 402 and second liquid mouth 403 put, first liquid port 402 and second liquid mouth 403 are heated in tubular type It is diagonally arranged on device cylinder 401, first liquid port 402 and second liquid mouth 403 one of them be inlet one be Liquid mouth, and can be with unrestricted choice.The top of tube heater cylinder 401 is provided with lower flange 404, on the lower flange 404 Side is provided with upper flange 405, and lower flange 404 and upper flange 405 are fixed by screws, are installed on upper flange 405 More electric heating tubes 406, the main body of electric heating tube 406 are located at 401 inside center of tube heater cylinder across lower flange 404, 405 top of upper flange is covered with power protection box 407, and the power interface of electric heating tube 406 is located at 405 top of upper flange In power protection box 407.Installation screw socket 408 is provided on the side wall of the tube heater cylinder 401, installation screw socket 408 is used In attachmentes such as installation heating protecting device, heating control apparatus, safe pressure protective devices.The tube heater cylinder 401 Bottom is vertically provided with tube heater cylinder fixed screw 410, and the rotation of tube heater cylinder fixed screw 410 is equipped with cloth up and down The crash roll retainer plate 409 and crash roll 411 put.Crash roll retainer plate 409 is close to the bottom of tube heater cylinder 401, Crash roll 411 is in crash roll retainer plate 409.Positioned at 406 outside of electric heating tube in the tube heater cylinder 401 Region is provided with the flow channel for liquids from the first liquid port 402 to second liquid mouth 403, and flow channel for liquids can select spiral liquid Splitter 412 selects parallel separating liquid piece 413.Wherein spiral separating liquid piece 412 be spiral chip architecture, parallel liquid Body splitter 413 is multiple horizontal chip architectures of dislocation arrangement.
A kind of method of work of the hydraulic system of the hydraulic pressure bypass of the adjustable relief valve of band:
Equipment heating source initial operating stage, fluid temperature are less than 35 degrees Celsius, and cooling fan does not start, and tube heater opens Dynamic, between oil temperature is warming up to 35~55 degrees Celsius, then tube heater is closed, when equipment heating source runs a period of time Afterwards, temperature sensor detects that temperature then starts cooling fan higher than 60 degrees Celsius.
Adjusting nut is adjusted according to the setting pressure of fluid first, so as to be adjusted come the elastic potential energy to spring Section, the final pressure release value for controlling fluid in outer shell fluid channel;
When hydraulic pressure main road is unobstructed, the pressure of the left and right ends of adjustable relief valve is equal, and piston is in housing center Position, the partition position of piston is corresponding with the position of the separation ring flat-plate of housing, and piston does not act;
Embodiment 1, when liquid flows from left to right and hydraulic pressure main road is obstructed, the left end pressure of adjustable relief valve is big In right end pressure, the pressure being more than due to the pressure in the piston fluid channel on the left of partition board in the piston fluid channel on the right side of partition board Power, fluid forces partition board moves right, so that piston also moves right, the fluid bore on the left of partition board is located at the one of right side During a half intracavitary of Fluid passageways, the larger fluid of pressure flows out to right side out of left side piston fluid channel by fluid bore One half intracavitary of Fluid passageways, then flow to again right side piston fluid channel in, so as to achieve the purpose that pressure release, at this time left side Spring be in tensional state, the spring on right side is in compressive state, until partition board on the left of it is equal with the pressure on right side, piston is returned Original position is put, hydraulic pressure main road returns unobstructed.
Embodiment 2, when liquid flows from left to right and hydraulic pressure main road is obstructed, the right end pressure of adjustable relief valve is big In left end pressure, the pressure being more than due to the pressure in the piston fluid channel on the right side of partition board in the piston fluid channel on the left of partition board Power, fluid forces partition board is moved to the left, so that piston is also moved to the left, the fluid bore on the right side of partition board is located at the one of left side During a half intracavitary of Fluid passageways, the larger fluid of pressure flows out to left side out of right side piston fluid channel by fluid bore One half intracavitary of Fluid passageways, then flow to again left side piston fluid channel in, so as to achieve the purpose that pressure release, at this time right side Spring be in tensional state, the spring in left side is in compressive state, until partition board on the left of, Hydraulic Main equal with the pressure on right side Road returns unobstructed.

Claims (10)

1. a kind of method of work of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band, it is characterised in that:
Step 1: connection equipment heating source and industrial constant-temperature machine;
The hydraulic oil oil inlet and hydraulic oil oil outlet of the hydraulic oil transfer pipeline of industrial constant-temperature machine pass through hydraulic oil oil inlet respectively Mouth hose connects the hydraulic oil drain line in equipment heating source and hydraulic oil oil return line with hydraulic oil oil outlet hose;
Step 2: after equipment heating source brings into operation, the hydraulic oil of second fluid chamber of fuel reserve tank passes through fuel reserve tank flowline Road supply arrangement heat generating device, the hydraulic oil in equipment heating device drain into first of fuel reserve tank by fuel reserve tank oil inlet pipe Fluid chamber, the hydraulic oil of first fluid chamber is successively by hydraulic oil drain line, hydraulic oil oil inlet hose, hydraulic oil Transfer pipeline, hydraulic oil oil outlet hose and hydraulic oil oil return line are back to second fluid chamber of fuel reserve tank;
During booting, fuel reserve tank temperature sensor or hydraulic oil transfer pipeline temperature sensor first detect fluid temperature, work as temperature Heating mode is opened during less than 35 DEG C, refrigeration mode is opened when temperature is higher than 60 DEG C;
Industrial constant-temperature machine includes a hydraulic oil transfer pipeline (100), from hydraulic oil oil inlet on the hydraulic oil transfer pipeline (100) Mouthful to being disposed with hydraulic oil transfer pipeline delivery pump (101), radiator (5), heat-exchanger rig between hydraulic oil oil outlet (102) and tube heater, the side of radiator (5) are provided with cooling fan,
Hydraulic oil transfer pipeline temperature sensor is additionally provided on hydraulic oil transfer pipeline (100) wherein in front of radiator (5) (103), it is provided with hydraulic oil transfer pipeline on the hydraulic oil transfer pipeline (100) between radiator (5) and heat-exchanger rig (102) It is in parallel on the hydraulic oil transfer pipeline (100) at the first solenoid valve (104), radiator (5) front and the first solenoid valve (104) rear It is provided with a hydraulic oil conveying bypass (106) with hydraulic oil transfer pipeline second solenoid valve (105);
The upper heat exchange connector of the heat-exchanger rig (102) is connected with heat exchanging pipe (200) between lower heat exchange connector, exchanges heat Be provided on pipeline (200) gas-liquid separator (201), compressor (202), condenser (203), heat exchanging pipe by-passing valve (204), Four-way valve (205), the first check valve (206), the first liquid storage device (207), the first device for drying and filtering (208), the first heat exchanging pipe Solenoid valve (209), first throttling device (210), the second check valve (211), the second liquid storage device (212), the second device for drying and filtering (213), the second heat exchanging pipe solenoid valve (214) and second throttling device (215), wherein four-way valve (205) be up and down Four ends are respectively provided with A mouthfuls, B mouthfuls, C mouthfuls and D mouthfuls, and E reversal valves are provided in four-way valve (205);Heat exchanging pipe by-passing valve (204) It is connected between the import of compressor (202) and gas-liquid separator (201);
Refrigeration mode:Heat-exchanger rig, gas-liquid separator, compressor, condenser, four-way valve, the first list are provided on refrigeration pipeline To valve, the first liquid storage device, the first device for drying and filtering, the first heat exchanging pipe solenoid valve and first throttling device;
The operation principle of refrigeration pipeline:
Automatically controlled instruction of freezing requires compressor operating refrigerant sequence, and the first heat exchanging pipe solenoid valve is opened, the second heat exchanging pipe electricity Magnet valve is closed, four-way valve power-off, and the E reversal valves in four-way valve are closed;Compressor operating, compression refrigerant high temperature and high pressure gas according to It is secondary to be changed by A mouthfuls of four-way valve, D mouthfuls of four-way valve, condenser, the first check valve, the first liquid storage device, the first device for drying and filtering, first Compression is back to after heat pipe way solenoid valve, first throttling device, heat-exchanger rig, B mouthfuls of four-way valve, C mouthfuls of four-way valve, gas-liquid separator Machine;Wherein:Condenser for cool down compression high-temperature high-pressure refrigerant gas, the first liquid storage device for detach refrigerant gas and Liquid, first throttling device become low pressure refrigerant liquid for high pressure refrigerant liquid, and heat-exchanger rig is used for low pressure refrigerant Liquid evaporation absorbs heat and becomes low pressure refrigerant gas;
Heating mode:Heat-exchanger rig, gas-liquid separator, compressor, condenser, four-way valve, the second list are provided on heating pipeline To valve, the second liquid storage device, the second device for drying and filtering, the second heat exchanging pipe solenoid valve and second throttling device;
Heat the operation principle of pipeline:
Heating automatically controlled instruction requires compressor operating to heat program, and the first heat exchanging pipe solenoid valve is closed, the second heat exchanging pipe electricity Magnet valve is opened, and four-way valve is powered, and the E reversal valves in four-way valve are opened;Compressor operating, compression refrigerant high temperature and high pressure gas according to It is secondary to pass through A mouthfuls of four-way valve, B mouthfuls of four-way valve, heat-exchanger rig, the second check valve, the second liquid storage device, the second device for drying and filtering, second Compression is back to after heat exchanging pipe solenoid valve, second throttling device, condenser, D mouthfuls of four-way valve, C mouthfuls of four-way valve, gas-liquid separator Machine;
Wherein:Heat-exchanger rig becomes higher pressure refrigerant gas, the second storage for high-temperature high-pressure refrigerant gas condensed absorbent heat For liquid device for detaching refrigerant gas and liquid, second throttling device becomes low pressure refrigerant gas for higher pressure refrigerant gas Body;
The first solenoid valve of hydraulic oil transfer pipeline and hydraulic oil transfer pipeline second solenoid valve when heat exchanging pipe heats and freezes, Action is depending on environment temperature;
Refrigeration mode:When fluid temperature is higher than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is opened, hydraulic oil delivery pipe Road second solenoid valve is closed;When fluid temperature is lower than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is closed, and hydraulic oil is defeated Pipeline second solenoid valve is sent to open;
Heating mode:When fluid temperature is higher than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is closed, hydraulic oil delivery pipe Road second solenoid valve is opened;When fluid temperature is lower than environment temperature, the first solenoid valve of hydraulic oil transfer pipeline is opened, and hydraulic oil is defeated Pipeline second solenoid valve is sent to close;
Equipment heating source (900) includes equipment heating device (901) and fuel reserve tank (902), is set in the liquid reserve tank (902) There is one piece of partition board being vertically arranged, partition board will be respectively two fluid chambers in liquid reserve tank (902), and first fluid chamber is set There are the oil inlet of fuel reserve tank (902) and the oil discharge outlet of fuel reserve tank (902), second fluid chamber to be provided with fuel reserve tank (902) Oil outlet and fuel reserve tank (902) oil return opening, the oil discharge outlet of fuel reserve tank (902) and the oil outlet of fuel reserve tank (902) are equal Be provided with filter, be connected between the oil outlet of equipment heating device (901) and the oil inlet of fuel reserve tank (902) fuel reserve tank into Oil pipe line (903), the oil discharge outlet of fuel reserve tank (902) draw hydraulic oil drain line (904), equipment heating device (901) into Be connected with fuel reserve tank oil outlet pipe (905) between the oil outlet of hydraulic fluid port and fuel reserve tank (902), fuel reserve tank oil inlet pipe (903) or Fuel reserve tank oil-way circulation pump (906) is provided in person's fuel reserve tank oil outlet pipe (905), the oil return opening of fuel reserve tank (902) draws liquid Pressure oil oil return line (907), there are one fuel reserve tank temperature sensors for the interior setting of first fluid chamber of fuel reserve tank (902) (908);
The hydraulic oil oil inlet and hydraulic oil oil outlet of the hydraulic oil transfer pipeline (100) are soft by hydraulic oil oil inlet respectively Pipe connects the hydraulic oil drain line (904) in equipment heating source (900) and hydraulic oil oil return line with hydraulic oil oil outlet hose (907);
The first liquid port arranged up and down and second liquid mouth, the main body position of electric heating tube are provided on tube heater cylinder In tube heater inner barrel center, the region in the tube heater cylinder on the outside of electric heating tube is provided with from the One liquid port to second liquid mouth flow channel for liquids,
Be arranged in parallel adjustable relief valve on the oil circuit at radiator both ends, the adjustable relief valve include outer housing (701), Inner housing (702), piston (703), two springs (704), two adjusting blocks (705) and two adjusting nuts (706) are described Outer housing (701) lateral arrangement, the interior outer housing fluid channel (701.1) for forming a lateral direction penetrating of the outer housing (701), Fluid passageways chamber (701.2) is provided in the middle part of the outer housing (701), the internal diameter of Fluid passageways chamber (701.2) is more than shell The outer diameter of body fluid channel (701.1), Fluid passageways chamber (701.2) is interior to be fixedly installed one piece of separation ring flat-plate (701.3), separates Fluid passageways chamber (701.2) is separated to form two half chambers of Fluid passageways in left and right by ring flat-plate (701.3), the outer housing (701) Left section and right section is symmetrical arranged there are one nut groove (701.4), and the piston (703) is horizontally set at outer housing fluid channel (701.1) middle part is set gradually from inside to outside respectively in the outer housing fluid channel (701.1) at left and right sides of piston (703) Spring (704), adjusting block (705) and inner housing (702), the outer end of two springs (704) connect two adjusting blocks respectively (705) inner end, rotation is put there are two adjusting nut (706) respectively in the outer section of two adjusting blocks (705), adjusting block (705) with Adjusting nut (706) thread fitting, adjusting nut (706) are limited in nut groove (701.4), the inner face of adjusting block (705) There are gaps between outer housing (701), and there are gap, the work between the outer end face of adjusting block (705) and inner housing (702) The hollow structure that (703) are left and right ends opening is filled in, the piston (703) includes piston shell (703.1), the piston shell (703.1) be provided with one piece of partition board being vertically arranged (703.2) in the middle part of, partition board (703.2) by the inside points of piston (703) every For the two piston fluid channels (703.5) being in communication with the outside respectively in left and right, the piston shell at left and right sides of partition board (703.2) The fluid bore (703.3) being arranged symmetrically is provided on body (703.1).
2. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that the outer end inner wall of inner housing (702) is provided with connection screw thread.
3. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that hollow out at the outer housing (701) of adjusting nut (706) front and rear surfaces, the outer surface of adjusting nut (706) are set It is equipped with graduation mark.
4. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that the internal diameter for separating ring flat-plate (701.3) is consistent with the internal diameter of outer housing fluid channel (701.1).
5. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that the outer diameter of spring (704) is matched with the internal diameter of outer housing fluid channel (701.1).
6. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that the fluid bore (703.3) is circular layout on piston shell (703.1).
7. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that fluid bore (703.3) of the partition board (703.2) per side is provided with multi-turn.
8. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that the lateral distance between the fluid bore (703.3) of the fluid bore (703.3) of left end to right end is not more than The lateral distance of half chamber of Fluid passageways.
9. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that the left and right ends of piston (703) are provided with the step (703.4) with spring (704) cooperation.
10. a kind of work side of the temperature control industrial constant-temperature machine of the adjustable relief valve hydraulic pressure bypass of band according to claim 1 Method, it is characterised in that be provided with inner seal ring (708), adjusting block between the inner segment outer wall of adjusting block (705) and outer housing (701) (705) exterior seal ring (709) is provided between outer section inner wall inner housing (702).
CN201711217908.8A 2017-11-28 2017-11-28 The method of work of temperature control industrial constant-temperature machine with adjustable relief valve hydraulic pressure bypass Pending CN108131361A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204881100U (en) * 2015-07-13 2015-12-16 潘亚平 Multi -functional drying and dehumidification device
CN105972002A (en) * 2016-06-30 2016-09-28 江苏金荣森制冷科技有限公司 Temperature control industrial refrigerating device for hydraulic bypass with piston type pressure release valve
CN106015196A (en) * 2016-06-30 2016-10-12 江苏金荣森制冷科技有限公司 Working method of temperature control industrial refrigerating machine with adjustable type pressure release valve hydraulic bypass

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204881100U (en) * 2015-07-13 2015-12-16 潘亚平 Multi -functional drying and dehumidification device
CN105972002A (en) * 2016-06-30 2016-09-28 江苏金荣森制冷科技有限公司 Temperature control industrial refrigerating device for hydraulic bypass with piston type pressure release valve
CN106015196A (en) * 2016-06-30 2016-10-12 江苏金荣森制冷科技有限公司 Working method of temperature control industrial refrigerating machine with adjustable type pressure release valve hydraulic bypass

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Application publication date: 20180608