CN105972003B - The method of work of the industrial refrigeration machine of hydraulic pressure bypass with adjustable relief valve - Google Patents
The method of work of the industrial refrigeration machine of hydraulic pressure bypass with adjustable relief valve Download PDFInfo
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- CN105972003B CN105972003B CN201610507549.9A CN201610507549A CN105972003B CN 105972003 B CN105972003 B CN 105972003B CN 201610507549 A CN201610507549 A CN 201610507549A CN 105972003 B CN105972003 B CN 105972003B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- Chemical & Material Sciences (AREA)
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- Fluid Mechanics (AREA)
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- Fluid-Pressure Circuits (AREA)
Abstract
A kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band of the present invention, the industrial refrigeration machine of hydraulic pressure bypass with adjustable relief valve includes a hydraulic oil transfer pipeline, from hydraulic oil oil inlet to being disposed with hydraulic oil transfer pipeline delivery pump between hydraulic oil oil-out on the hydraulic oil transfer pipeline, radiator and heat-exchanger rig, the side of radiator is provided with cooling fan, gas-liquid separator is disposed with the coolant outlet of the heat-exchanger rig to the cooling line cooled down between import, compressor, condenser, reservoir, device for drying and filtering, cooling line magnetic valve and throttling arrangement, compressor is to the cooling line between condenser and throttling arrangement to being provided with a cooling line by-passing valve between the cooling line between heat-exchanger rig；Adjustable relief valve has been arranged in parallel on the oil circuit at radiator both ends.The present invention has reliability high, is hardly damaged, the advantages of ensureing system stable operation.
Description
Technical field
The method of work of the industrial refrigeration machine bypassed the present invention relates to a kind of hydraulic pressure of the adjustable relief valve of band.
Background technology
It is well known that oil temperature in hydraulic system optimum temperature is between 35 ~ 55 degrees Celsius, taken the photograph once temperature increases to over 60
Family name's degree, the system of hydraulic system will significantly decline, and its equipment fault continuously emerges, under causing the stability of equipment serious
Drop, can not ensure machinery equipment normal operation.Especially season, high oil temperature, or even machinery equipment can be caused usually to locate in full summer
In stopped status.
Therefore the stability of industrial refrigeration machine directly influences the working condition of machinery equipment, in traditional industrial refrigeration machine
When fluid pressure is excessive, directly result in that pressure in heat exchanger is excessive to be caused to damage to radiator.In general radiator is to radiate
The collecting tank of device has the capacity of a fixed proportion, and fluid has certain big resistance by radiator heat-dissipation channel interior.It
Amount of liquid storage it is smaller, do not buffer, the temperature difference is big, low temperature environment, flow are uneven, have the liquid of certain viscosity, has punching running into
Hit under the fluid situations of power, the pressure of radiator heat-dissipation channel interior also increases therewith, especially have impulsive force and ratio of viscosities compared with
In the case of big fluid, because fluid is in the resistance of channel interior, fluid is seted 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, scrapped.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of reliability is high, is hardly damaged, and ensures that system is stable and transports
The method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of capable band.
The object of the present invention is achieved like this：
A kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of adjustable relief valve of band, the liquid with adjustable relief valve
The industrial refrigeration machine of pressure bypass 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 and heat-exchanger rig are disposed between force feed oil-out, the side of radiator is set
Cooling fan is equipped with, gas-liquid point is disposed with coolant outlet to the cooling line cooled down between import of the heat-exchanger rig
From device, compressor, condenser, reservoir, device for drying and filtering, cooling line magnetic valve and throttling arrangement, compressor to condensation
Cooling line and throttling arrangement between device bypass to a cooling line is provided between the cooling line between heat-exchanger rig
Valve.
Be arranged in parallel adjustable relief valve on the oil circuit at radiator both ends, the adjustable relief valve include shell body,
Inner housing, piston, two springs, two regulating blocks and two adjusting nuts, the shell body lateral arrangement, the shell body
The interior shell body fluid passage for forming a lateral direction penetrating, is provided with Fluid passageways chamber, Fluid passageways in the middle part of the shell body
The internal diameter of chamber is more than the external diameter of shell body fluid passage, and Fluid passageways intracavitary is fixedly installed one piece of separation ring flat-plate, separates ring flat-plate
Fluid passageways chamber is separated to form two chambers of Fluid passageways half in left and right, left section and right section of the shell body is symmetrically arranged with one
Nut groove, the piston are horizontally set at the middle part of shell body fluid passage, in the shell body fluid passage at left and right sides of piston
Set gradually spring, regulating block and inner housing from inside to outside respectively, the outer ends of two springs connects two regulating blocks respectively
The inner, rotation is equipped with two adjusting nuts respectively in the outer section of two regulating blocks, and regulating block coordinates with adjusting nut screw thread, adjusts spiral shell
Mother is limited in nut groove, leaves gap between the inner face and shell body of regulating block, the outer face and inner housing of regulating block it
Between leave gap, the piston is the hollow structure of left and right ends opening, and the piston includes piston shell, the piston shell
Middle part be provided with one piece of dividing plate being vertically arranged, the inside of piston is divided into what left and right two was in communication with the outside respectively by dividing plate
Piston fluid passage, the fluid bore being arranged symmetrically is provided with the piston shell at left and right sides of dividing plate.
Step 1: connection equipment heating source and industrial refrigeration machine；
The hydraulic oil oil inlet and hydraulic oil oil-out of the hydraulic oil transfer pipeline of industrial refrigeration machine pass through hydraulic oil respectively
Oil inlet flexible pipe connects the hydraulic oil drain line and hydraulic oil return line in equipment heating source with hydraulic oil oil-out flexible pipe；
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 electro-heat equipment, the hydraulic oil in equipment heating device drain into the of fuel reserve tank by fuel reserve tank in-line
One fluid chamber, the hydraulic oil of first fluid chamber is successively by hydraulic oil drain line, hydraulic oil oil inlet flexible pipe, liquid
Force feed transfer pipeline, hydraulic oil oil-out flexible pipe and hydraulic oil return line are back to second fluid chamber of fuel reserve tank；
Equipment heating source initial operating stage, hydraulic fluid temperature is low, hydraulic oil hydraulic oil transfer pipeline flowing directly from liquid
Bypass line flowing is pressed oil, hydraulic oil is cooled down without heat-exchanger rig；
The hydraulic fluid temperature that equipment heating plant running can cause it internal for a period of time is also increased, therefore equipment is sent out
The hydraulic fluid temperature for first fluid chamber that thermal is expelled in fuel reserve tank also raises, fuel reserve tank temperature sensor or liquid
Force feed transfer pipeline temperature sensor detects that the temperature of hydraulic oil reaches certain high temperature, and hydraulic oil by-passing valve is closed, hydraulic oil
Cooled down by heat-exchanger rig, now the cooling line magnetic valve on cooling line starts, and cooling line comes into operation, and cools down
Pipeline carries out heat exchange at heat-exchanger rig with the high temperature hydraulic oil in hydraulic oil transfer pipeline, high temperature hydraulic oil is carried out cold
But so that hydraulic oil transfer pipeline is passed through by the low temperature hydraulic oil of heat-exchanger rig cooling to be back to second liquid of fuel reserve tank again
Continue supply arrangement electro-heat equipment in pumping chamber.
The outer end inner wall of inner housing is provided with connection screw thread.
Hollow out at the shell body 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 shell body fluid passage.
The external diameter of spring matches with the internal diameter of shell body fluid passage.
The fluid bore is circular layout on piston shell.
Fluid bore of the dividing plate per side is provided with multi-turn.
The fluid bore of high order end is not more than the transverse direction of the chamber of Fluid passageways half to the lateral separation between the fluid bore of low order 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 shell body of regulating block, between the outer section inwall inner housing of regulating block
It is provided with exterior seal ring.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention has reliability high, is hardly damaged, the advantages of ensureing system stable operation.
Brief description of the drawings
Fig. 1 is the structural representation 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 three-dimensional half-sectional explosive view of adjustable relief valve.
Fig. 8 is the schematic diagram of embodiment 1.
Fig. 9 is the schematic diagram of embodiment 2.
Wherein：
Hydraulic oil transfer pipeline 100, hydraulic oil transfer pipeline delivery pump 101, heat-exchanger rig 102, hydraulic oil transfer pipeline
Temperature sensor 103
Cooling line 200, gas-liquid separator 201, compressor 202, condenser 203, reservoir 204, device for drying and filtering
205th, cooling line magnetic valve 206, throttling arrangement 207, cooling line by-passing valve 208
Hydraulic oil bypass line 300, hydraulic oil by-passing valve 301
Radiator 5
Adjustable relief valve 7, shell body 701, shell body fluid passage 701.1, Fluid passageways chamber 701.2, separation ring flat-plate
701.3rd, nut groove 701.4, inner housing 702, piston 703, piston shell 703.1, dividing plate 703.2, fluid bore 703.3, step
703.4th, piston fluid passage 703.5, spring 704, regulating block 705, adjusting nut 706, connecting 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 in-line 903, hydraulic oil oil extraction
Pipeline 904, fuel reserve tank outlet line 905, fuel reserve tank oil-way circulation pump 906, hydraulic oil return line 907, fuel reserve tank temperature pass
Sensor 908.
Embodiment
Referring to Fig. 1 ~ Fig. 9, a kind of industrial refrigeration machine of the hydraulic pressure bypass of adjustable relief valve of band of the present invention, it is wrapped
A hydraulic oil transfer pipeline 100 is included, from hydraulic oil oil inlet between hydraulic oil oil-out on the hydraulic oil transfer pipeline 100
It is disposed with hydraulic oil transfer pipeline delivery pump 101, radiator 5 and heat-exchanger rig 102, the side of radiator 5 is provided with scattered
Air-heater, the coolant outlet of the heat-exchanger rig 102 extremely cools down is disposed with gas-liquid point on the cooling line 200 between import
From device 201, compressor 202, condenser 203, reservoir 204, device for drying and filtering 205, cooling line magnetic valve 206 and throttling
Device 207, wherein condenser 203 can be one, and condenser 203 can also be provided with multiple, compressor in parallel or in series
202 to the cooling line 200 between condenser 203 and throttling arrangement 207 to the cooling line 200 between heat-exchanger rig 102 it
Between be provided with a cooling line by-passing valve 208.Adjustable relief valve has been arranged in parallel on the oil circuit at radiator both ends.
Hydraulic oil transfer pipeline temperature sensor 103, the heat-exchanger rig are provided with the hydraulic oil transfer pipeline 100
A hydraulic oil bypass line 300, the hydraulic oil bypass pipe have been arranged in parallel on the hydraulic oil transfer pipeline 100 at 102 both ends
Hydraulic oil by-passing valve 301 is provided with road 300.When hydraulic oil transfer pipeline temperature sensor 103 detects that temperature is relatively low, hydraulic pressure
Oil bypass valve 301 is opened, and hydraulic oil directly flows from hydraulic oil bypass line 300, hydraulic oil transfer pipeline temperature sensor 103
When detecting that temperature is higher, hydraulic oil by-passing valve 301 is closed, and hydraulic oil does not flow from hydraulic oil bypass line 300.
Equipment heating source 900 includes equipment heating device 901 and fuel reserve tank 902, and one is provided with the liquid reserve tank 902
The dividing plate that block is vertically arranged, dividing plate 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-out and
Filter, equipment hair are provided with the oil return opening of fuel reserve tank 902, the oil discharge outlet of fuel reserve tank 902 and the oil-out of fuel reserve tank 902
Fuel reserve tank in-line 903, the row of fuel reserve tank 902 are connected between the oil-out 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-out of fuel reserve tank 902
There is fuel reserve tank outlet line 905, fuel reserve tank oil circuit is provided with fuel reserve tank in-line 903 or fuel reserve tank outlet line 905
Circulating pump 906, the oil return opening of fuel reserve tank 902 draw hydraulic oil return line 907, in first fluid chamber of fuel reserve tank 902
It is provided with a fuel reserve tank temperature sensor 908.
The hydraulic oil oil inlet and hydraulic oil oil-out of the hydraulic oil transfer pipeline 100 pass through hydraulic oil oil inlet respectively
Flexible pipe connects the hydraulic oil drain line 904 and hydraulic oil return line in equipment heating source 900 with hydraulic oil oil-out flexible pipe
907。
A kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band：
Step 1: connection equipment heating source 900 and industrial refrigeration machine；
The hydraulic oil oil inlet and hydraulic oil oil-out of the hydraulic oil transfer pipeline 100 of industrial refrigeration machine pass through hydraulic pressure respectively
Oily oil inlet flexible pipe connects the hydraulic oil drain line 904 in equipment heating source 900 with hydraulic oil oil-out flexible pipe 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
The supply arrangement electro-heat equipment 901 of fuel tank outlet line 905, 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 flexible pipe, hydraulic oil transfer pipeline 100, hydraulic oil oil-out flexible pipe and hydraulic oil return line
907 are back to second fluid chamber of fuel reserve tank 902；
The initial operating stage of equipment heating source 900, hydraulic fluid temperature is low, and hydraulic oil is straight in the flowing of hydraulic oil transfer pipeline 100
Connect from hydraulic oil bypass line 300 and flow, hydraulic oil is cooled down without heat-exchanger rig 102；
The hydraulic fluid temperature that the operation a period of time of equipment heating device 901 can cause it internal also increases, therefore sets
The hydraulic fluid temperature for first fluid chamber that preparation thermal 901 is expelled in fuel reserve tank 902 also raises, and fuel reserve tank temperature passes
Sensor 908 or hydraulic oil transfer pipeline temperature sensor 103 detect that the temperature of hydraulic oil reaches certain high temperature（Taken the photograph more than 60
Family name's degree）, hydraulic oil by-passing valve 301 closed, and hydraulic oil is cooled down by heat-exchanger rig 102, now cold on cooling line 200
But pipeline electromagnetic valve 206 starts, and cooling line 200 comes into operation, and cooling line 200 is defeated with hydraulic oil at heat-exchanger rig 102
Send the high temperature hydraulic oil in pipeline 100 to carry out heat exchange, high temperature hydraulic oil is cooled down so that cooled down by heat-exchanger rig 102
Low temperature hydraulic oil by hydraulic oil transfer pipeline 100 be to be back to second fluid chamber of fuel reserve tank 902 again to continue to supply
Equipment heating device 901.
The operation principle of wherein cooling line 200 is：
The high temperature and high pressure gas come out from compressor 202 are changed into cryogenic high pressure gas liquid mixture after condenser 203, so
Gas-liquid separation is carried out by reservoir 204 afterwards and form cryogenic high pressure liquid, then carry out water removal by device for drying and filtering 205 and remove
It is miscellaneous, low temperature and low pressure liquid then is formed by throttling arrangement 207, low temperature and low pressure liquid is in heat-exchanger rig 102 by heat exchange shape
Into low-temp low-pressure gas liquid mixture, low-temp low-pressure gas liquid mixture carries out gas-liquid separation by gas-liquid separator 201 and forms low temperature
Low-pressure gas, then low temperature low pressure gas be compressed to form high temperature and high pressure gas by compressor 202 again, it is reciprocal above-mentioned to follow
Ring, so as to which cooling line 200 cools down to the hydraulic oil of the hydraulic oil transfer pipeline 100 by heat-exchanger rig 102.It is wherein cold
But the effect of the cooling line by-passing valve 208 in pipeline 200 is that pressure in cooling line 200 persistently raises and reaches certain value
When, cooling line by-passing valve 208 opens progress pressure release and cooling line 200 is played a protective role；Cooling line magnetic valve 206
Effect is when cooling line 200 is inoperative, and the liquid for placing the front of cooling line magnetic valve 206 flow to compressor 202 backward
It is interior so that compressor 202 damages, and plays a protective role.
The adjustable relief valve 7 includes shell body 701, inner housing 702, the regulation of 703, two, piston, 704, two, spring
Block 705 and two adjusting nuts 706, the lateral arrangement of shell body 701, one transverse direction of the interior formation of the shell body 701 are passed through
Logical shell body fluid passage 701.1, the middle part of the shell body 701 are provided with Fluid passageways chamber 701.2, Fluid passageways chamber
701.2 internal diameter is more than the external diameter of shell body fluid passage 701.1, and one piece of separation is fixedly installed in Fluid passageways chamber 701.2
Ring flat-plate 701.3, the internal diameter of separation ring flat-plate 701.3 is consistent with the internal diameter of shell body fluid passage 701.1, and separating ring flat-plate 701.3 will
Fluid passageways chamber 701.2 is separated to form two chambers of Fluid passageways half in left and right, and left section and right section of the shell body 701 is symmetrical arranged
There is a nut groove 701.4.The piston 703 is horizontally set at the middle part of shell body fluid passage 701.1, piston 703 or so
Set gradually spring 704, regulating block 705 and inner housing in the shell body fluid passage 701.1 of both sides from inside to outside respectively
702, the external diameter of spring 704 matches with the internal diameter of shell body fluid passage 701.1.The outer end of two springs 704 connects two respectively
The inner of individual regulating block 705, rotation is equipped with two adjusting nuts 706, adjusting nut 706 respectively in the outer section of two regulating blocks 705
Hollow out at the shell body 701 of front and rear surfaces, the outer surface of adjusting nut 706 are provided with graduation mark, regulating block 705 and adjusting nut
706 screw threads coordinate, and adjusting nut 706 is limited in nut groove 701.4, and regulating block can be adjusted by putting adjusting nut 706 by rotation
705 lateral separation, so as to adjust the elastic potential energy of spring 704, fluid can be controlled in outer shell fluid passage 701.1
Pressure release value.Inner housing 702 is fixed with shell body 701 by connecting bolt 707, and the outer end inner wall of inner housing 702 is provided with connection
Screw thread, inner seal ring 708, the outer section inwall of regulating block 705 are provided between the inner segment outer wall and shell body 701 of regulating block 705
Exterior seal ring 709 is provided between inner housing 702, gap is left between the inner face and shell body 701 of regulating block 705, is adjusted
Gap is left between the outer 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 dividing plate being vertically arranged 703.2, dividing plate 703.2 by the inside points of piston 703 every
For the piston fluid passage 703.5 being in communication with the outside respectively of left and right two, the piston shell positioned at the left and right sides of dividing plate 703.2
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 dividing plate 703.2 per side can be provided with multi-turn, and the one of high order end encloses fluid bore 703.3 to low order end
Lateral separation between one circle fluid bore 703.3 is not more than the lateral separation of the chamber of Fluid passageways half.The left and right two of the piston 703
End is provided with the step 703.4 coordinated with spring 704.
The method of work of adjustable relief valve：
First adjusting nut is adjusted according to the setting pressure of fluid, so as to be adjusted to the elastic potential energy of spring
Section, the final pressure release value for controlling fluid in outer shell fluid passage；
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
The position correspondence of position, the partition position of piston and the separation ring flat-plate of housing, piston do 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-hand member pressure, the pressure being more than due to the pressure in the piston fluid passage on the left of dividing plate in the piston fluid passage on the right side of dividing plate
Power, fluid forces dividing plate moves right, so that piston also moves right, the fluid bore on the left of dividing plate is located at the one of right side
During individual half intracavitary of Fluid passageways, the larger fluid of pressure flows out to right side out of left side piston fluid passage by fluid bore
One intracavitary of Fluid passageways half, then flow to again right side piston fluid passage in, so as to reach the purpose of pressure release, now left side
Spring be in extended state, the spring on right side is in compressive state, until dividing plate 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-hand member pressure of adjustable relief valve is big
In left end pressure, the pressure being more than due to the pressure in the piston fluid passage on the right side of dividing plate in the piston fluid passage on the left of dividing plate
Power, fluid forces dividing plate is moved to the left, so that piston is also moved to the left, the fluid bore on the right side of dividing plate is located at the one of left side
During individual half intracavitary of Fluid passageways, the larger fluid of pressure flows out to left side out of right side piston fluid passage by fluid bore
One intracavitary of Fluid passageways half, then flow to again left side piston fluid passage in, so as to reach the purpose of pressure release, now right side
Spring be in extended state, the spring in left side is in compressive state, until dividing plate on the left of, Hydraulic Main equal with the pressure on right side
Road returns unobstructed.
Claims (8)
1. the method for work of the industrial refrigeration machine of the hydraulic pressure bypass of a kind of adjustable relief valve of band, it is characterised in that let out with adjustable
The industrial refrigeration machine of the hydraulic pressure bypass of pressure valve includes a hydraulic oil transfer pipeline, enters on the hydraulic oil transfer pipeline from hydraulic oil
Hydraulic fluid port is to being disposed with hydraulic oil transfer pipeline delivery pump, radiator and heat-exchanger rig, radiator between hydraulic oil oil-out
Side be provided with cooling fan, is set gradually on coolant outlet to the cooling line cooled down between import of the heat-exchanger rig
There are gas-liquid separator, compressor, condenser, reservoir, device for drying and filtering, cooling line magnetic valve and throttling arrangement, compress
Machine is to the cooling line between condenser and throttling arrangement to being provided with a cooling between the cooling line between heat-exchanger rig
Pipeline by-passing valve；Adjustable relief valve is arranged in parallel on the oil circuit at radiator both ends, the adjustable relief valve includes shell
Body（701）, inner housing（702）, piston（703）, two springs（704）, two regulating blocks（705）And two adjusting nuts
（706）, the shell body（701）Lateral arrangement, the shell body（701）The interior shell body fluid for forming a lateral direction penetrating leads to
Road（701.1）, the shell body（701）Middle part be provided with Fluid passageways chamber（701.2）, Fluid passageways chamber（701.2）It is interior
Footpath is more than shell body fluid passage（701.1）External diameter, Fluid passageways chamber（701.2）Inside it is fixedly installed one piece of separation ring flat-plate
（701.3）, separate ring flat-plate（701.3）By Fluid passageways chamber（701.2）Two chambers of Fluid passageways half in left and right are separated to form, it is described outer
Housing（701）Left section and right section be symmetrically arranged with a nut groove（701.4）, the piston（703）It is horizontally set at shell
Body fluid passage（701.1）Middle part, piston（703）The shell body fluid passage of the left and right sides（701.1）Inside respectively from introversion
Set gradually spring outside（704）, regulating block（705）And inner housing（702）, two springs（704）Outer end connect two respectively
Individual regulating block（705）The inner, two regulating blocks（705）Outer section on respectively rotation be equipped with two adjusting nuts（706）, regulating block
（705）With adjusting nut（706）Screw thread coordinates, adjusting nut（706）It is limited in nut groove（701.4）It is interior, regulating block（705）'s
Inner face and shell body（701）Between leave gap, regulating block（705）Outer face and inner housing（702）Between leave gap,
The piston（703）For the hollow structure of left and right ends opening, the piston（703）Including piston shell（703.1）, the work
Fill in housing（703.1）Middle part be provided with one piece of dividing plate being vertically arranged（703.2）, dividing plate（703.2）By piston（703）It is interior
Part is divided into the two piston fluid passages being in communication with the outside respectively in left and right（703.5）, positioned at dividing plate（703.2）The left and right sides
Piston shell（703.1）On be provided with the fluid bore being arranged symmetrically（703.3）；
Step 1: connection equipment heating source and industrial refrigeration machine；
The hydraulic oil oil inlet and hydraulic oil oil-out of the hydraulic oil transfer pipeline of industrial refrigeration machine pass through hydraulic oil oil-feed respectively
Mouth flexible pipe connects the hydraulic oil drain line and hydraulic oil return line in equipment heating source with hydraulic oil oil-out flexible pipe；
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 electro-heat equipment, the hydraulic oil in equipment heating device drain into first of fuel reserve tank by fuel reserve tank in-line
Fluid chamber, the hydraulic oil of first fluid chamber is successively by hydraulic oil drain line, hydraulic oil oil inlet flexible pipe, hydraulic oil
Transfer pipeline, hydraulic oil oil-out flexible pipe and hydraulic oil return line are back to second fluid chamber of fuel reserve tank；
Equipment heating source initial operating stage, hydraulic fluid temperature is low, hydraulic oil hydraulic oil transfer pipeline flowing directly from hydraulic oil
Bypass line is flowed, and hydraulic oil is cooled down without heat-exchanger rig；
The hydraulic fluid temperature that equipment heating plant running can cause it internal for a period of time also increases, therefore equipment heating fills
The hydraulic fluid temperature for putting first fluid chamber being expelled in fuel reserve tank also raises, fuel reserve tank temperature sensor or hydraulic oil
Transfer pipeline temperature sensor detects that the temperature of hydraulic oil reaches certain high temperature, and hydraulic oil by-passing valve is closed, and hydraulic oil passes through
Heat-exchanger rig is cooled down, and now the cooling line magnetic valve on cooling line starts, and cooling line comes into operation, cooling line
Heat exchange is carried out with the high temperature hydraulic oil in hydraulic oil transfer pipeline at heat-exchanger rig, high temperature hydraulic oil is cooled down, made
Obtain and hydraulic oil transfer pipeline is passed through by the low temperature hydraulic oil of heat-exchanger rig cooling to be back to second hydraulic oil of fuel reserve tank again
Continue supply arrangement electro-heat equipment in room；
The piston（703）Left and right ends be provided with and spring（704）The step of cooperation（703.4）；
Regulating block（705）Inner segment outer wall and shell body（701）Between be provided with inner seal ring（708）, regulating block（705）It is outer
Section inwall inner housing（702）Between be provided with exterior seal ring（709）.
2. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that inner housing（702）Outer end inner wall be provided with connection screw thread.
3. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that adjusting nut（706）The shell body of front and rear surfaces（701）Locate hollow out, adjusting nut（706）Outer surface set
There is graduation mark.
4. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that separate ring flat-plate（701.3）Internal diameter and shell body fluid passage（701.1）Internal diameter it is consistent.
5. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that spring（704）External diameter and shell body fluid passage（701.1）Internal diameter matching.
6. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that the fluid bore（703.3）It is circular layout in piston shell（703.1）On.
7. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that dividing plate（703.2）Fluid bore per side（703.3）It is provided with multi-turn.
8. a kind of method of work of the industrial refrigeration machine of the hydraulic pressure bypass of the adjustable relief valve of band according to claim 1,
It is characterized in that the fluid bore of high order end（703.3）To the fluid bore of low order end（703.3）Between lateral separation no more than stream
The lateral separation of the chamber of body passageway half.
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| CN108131360A (en) * | 2017-11-28 | 2018-06-08 | 江苏金荣森制冷科技有限公司 | Temperature control industrial constant-temperature machine with adjustable relief valve hydraulic pressure bypass |
| CN108105215A (en) * | 2017-11-28 | 2018-06-01 | 江苏金荣森制冷科技有限公司 | The method of work of tubing type industrial constant-temperature machine with the bypass of adjustable relief valve hydraulic pressure |
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