CN104654650A - Inertia tube vessel device and application thereof - Google Patents
Inertia tube vessel device and application thereof Download PDFInfo
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- CN104654650A CN104654650A CN201310597043.8A CN201310597043A CN104654650A CN 104654650 A CN104654650 A CN 104654650A CN 201310597043 A CN201310597043 A CN 201310597043A CN 104654650 A CN104654650 A CN 104654650A
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
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- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to an inertia tube vessel device. The inertia tube vessel device comprises a cold head and an engine. The cold head comprises a vessel an inertia tube, a heat regenerator and a room temperature heat exchanger; the inertia tube is arranged between the vessel and the heat regenerator; the engine is provided with two inverted-phase working chambers or two same in-phase working chambers; the vessel is connected with one working chamber of the engine; the room temperature heat exchanger is connected with the other working chamber of the engine; the inertia tube enables a phase difference to exist between the pressure waves of the two ends of the cold head or the phase difference of the pressure waves changes in the inertia tube. Compared with the prior art, according to the inertia tube vessel device, the inertia tube is connected between the vessel and the heat regenerator; in this way, the inertia tube works at a low temperature, and is increased in density and enhanced in inertia; meanwhile, the inertia tube is reduced in viscosity and lowered in power consumption, and further is improved in efficiency without changing the characteristic of only one moving component at the room temperature.
Description
Technical field
The present invention relates to a kind of vascular arrangement, especially relate to a kind of inertia tube vascular arrangement and application thereof.
Background technology
In a kind of ladder piston-type compressor inertia tube vascular refrigerator, cold head is made up of room temperature heat exchanger, regenerator, cryogenic heat exchanger, vascular, inertia tube and air reservoir.Ladder piston and ladder cylinder form two working chambers, and a working chamber is connected to regenerator indoor temperature end by radiator, and another working chamber is connected to air reservoir.An expansion work part for the gas of the cold junction of vascular is dissipated by inertia tube, and remaining arrives by inertia tube the working chamber recovery that air reservoir is connected to air reservoir.Its efficiency is higher than simple inertia tube vascular refrigerator.Inertia tube is an elongated tubular, and gas is back and forth flowing at a high speed inside, forms half-wavelength vibration.The reverse circulation of ladder piston-type compressor inertia tube vascular refrigerator is engine, thus can be used as the vascular engine of the low-temperature receiver utilizing cold energy of liquefied natural gas.But its inertia tube is in room temperature, its gas density is large not, and inertia effect is fine, and the viscosity of gas is also very large in room temperature, and merit is due to the flowing youngster consumption of gas in inertia tube greatly, and thus efficiency is low.But its advantage is the moving component only had under a room temperature, and cheap, reliability is high.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and simple, the broad-spectrum inertia tube vascular arrangement of a kind of structure and application thereof are provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of inertia tube vascular arrangement, comprise cold head and engine, described cold head comprises vascular, inertia tube, regenerator and room temperature heat exchanger, described inertia tube is between vascular and regenerator, described engine has two operate in antiphase chambeies or has two push-push operation chambeies, one of them working chamber of described vascular and engine is connected, and described another working chamber of room temperature heat exchanger and engine is connected.
Described inertia tube makes the pressure wave at cold head two ends have a phase difference, or pressure wave phase difference changes in inertia tube.
Further, described cold head is connected in turn by vascular, the first horn mouth, inertia tube, the second horn mouth, cryogenic heat exchanger, regenerator and room temperature heat exchanger.
Vascular can by etc. isometric inertia tube latter end replace.
Further, be provided with engine ladder cylinder and engine ladder piston in described engine, described engine ladder cylinder and engine ladder piston form the engine operation chamber of two homophases, and described inertia tube is the microscler inertia tube of half-wave.
Further, described engine comprises linear electric motors, the engine piston bar driven by linear electric motors, is connected to the engine piston at engine piston bar two ends and holds the cylinder of engine piston respectively, two cylinders form two anti-phase engine operation chambeies respectively with engine piston, described inertia tube is Full wave shape inertia tube.
Further, described engine comprises linear electric motors, the engine piston bar driven by linear electric motors, is connected to the engine piston of engine piston bar one end and holds the cylinder of engine piston, cylinder baffle plate is provided with in cylinder, the both sides of engine piston are two anti-phase engine operation chambeies, and described inertia tube is Full wave shape inertia tube.
Further, described inertia tube is made up of two sections inertia tube and the air reservoir be connected between two sections inertia tube.
Further, described cold head is provided with 1 ~ 5, when being provided with more than 2 or 2 cold heads, by being connected in parallel between adjacent cold head.
A kind of application of inertia tube vascular arrangement, inertia tube vascular arrangement is used as engine, now described inertia tube contacts with low-temperature receiver, described room temperature heat exchanger and the thermo-contact of room temperature heating circuit, engine operation chamber scavenging volume ratio is greater than critical ratio, and merit is inputted from vascular indoor temperature end to cold junction, and inertia tube heats low-temperature receiver, room temperature heat exchanger absorbs heat from room temperature, and engine receives merit at room temperature heat exchanger side draught.
A kind of application of inertia tube vascular arrangement, inertia tube vascular arrangement is used as electricity generation system, now liquefied natural gas stream is as low-temperature receiver, with inertia tube thermo-contact, thus cools inertia tube, room temperature heating circuit contacts with room temperature exchanger heat, merit inputs from vascular indoor temperature end to cold junction, and inertia tube heats low-temperature receiver, and room temperature heat exchanger absorbs heat from room temperature, engine is receiving merit at room temperature heat exchanger side draught, external output power.
Further, liquefied natural gas carries out heat exchange by jacket type stream or around tubular type stream and inertia tube and cryogenic heat exchanger thermo-contact.
An application for inertia tube vascular arrangement, inertia tube vascular arrangement is used as refrigeration machine, high temperature heat source engine or heat pump.
Compared with prior art, inertia tube of the present invention is between vascular and regenerator, inertia tube is cooled by liquefied natural gas, and such inertia tube works at low temperatures, and density increases, inertia strengthens, meanwhile, viscosity reduces, and power consumption is loose to be reduced, thus efficiency increases, and does not change again the feature that it only has the moving component under a room temperature.Although the merit that inertia tube dissipates heated liquefied natural gas in vain, waste cold, with to make it vaporize with heating of seawater liquefied natural gas simply better.
Accompanying drawing explanation
Fig. 1 is the structural representation of inertia tube vascular arrangement in embodiment 1;
Fig. 2 be in embodiment 1 inertia tube vascular arrangement be used as electricity generation system time structural representation;
Fig. 3 is the schematic diagram combined around tubular type liquefied natural gas stream Lu Yuleng inertia tube and cold heat exchanger;
The schematic diagram that Fig. 4 jacket type liquefied natural gas stream is combined with cold inertia tube and cold heat exchanger;
Fig. 5 is that maximum pressure in embodiment 1 in inertia tube vascular arrangement and minimum pressure distribute;
Fig. 6 is the pressure schematic diagram of engine first working chamber and the second working chamber in embodiment 1;
Fig. 7 is the pv diagram of engine first working chamber and the second working chamber in embodiment 1;
Fig. 8 is the structural representation of inertia tube vascular arrangement in embodiment 2;
Fig. 9 is the structural representation of inertia tube vascular arrangement in embodiment 3;
Figure 10 is the structural representation of inertia tube vascular arrangement in embodiment 4;
Figure 11 is the structural representation of inertia tube vascular arrangement in embodiment 5.
Number in the figure: 1 is cold head, 11 is vascular indoor temperature end tube connector, 121 is vascular indoor temperature end gas uniform device, 12 is vascular, 122 is vascular cold junction gas uniform device, 130 is inertia tube part, 131 is inertia tube first horn mouth, 13 is inertia tube, 13a is the first inertia tube, 13b is the second inertia tube, 132 is inertia tube second horn mouth, 133 is the first inertia tube air reservoir horn mouth, 134 is air reservoir, 135 is the second inertia tube air reservoir horn mouth, 14 is cryogenic heat exchanger, 15 is regenerator, 16 is room temperature heat exchanger, 17 is regenerator indoor temperature end tube connector, 2 is liquefied natural gas stream, 21 is in-line arrangement liquefied natural gas stream, 22 is around tubular type liquefied natural gas stream road, 23 is jacket type liquefied natural gas stream, 231 is gaseous natural gas outlet, 232 is chuck, 233 is liquefied natural gas runner, 234 is liquefied natural gas entrance, 3 is engine, 31 is working chamber before engine, 31a is engine first working chamber, 31b is engine second working chamber, 31c is engine back of the body working chamber, 32 is engine front air cylinder, 32b is engine ladder cylinder, 33 is engine secondary piston, 33b is engine ladder piston, 34 is engine piston bar, 35 is linear electric motors, 351 is engine spring, 352 is external stator, 353 is coil, 354 is magnet, 355 is magnet support, 356 is inner stator, 357 is motor cavity, 358 is motor casing, 36 is engine back piston, 37 is engine exhaust hood, 38 is working chamber after engine, 39 is engine front air cylinder baffle plate, 41 is room temperature heat-exchanging loop.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
A kind of inertia tube vascular arrangement, as shown in Figure 1, comprise cold head 1 and engine 3, cold head 1 is formed by connecting in turn by vascular indoor temperature end tube connector 11, vascular indoor temperature end gas uniform device 121, vascular 12, vascular low-temperature end gas uniform device 122, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132, cryogenic heat exchanger 14, regenerator 15, room temperature heat exchanger 16 and regenerator indoor temperature end tube connector 17.Wherein, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132 form inertia tube part 130.The upper end of vascular 12 is called vascular indoor temperature end, and lower end is called vascular cold junction, and the lower end of regenerator 15 is called regenerator indoor temperature end, and upper end is called regenerator cold junction.Inertia tube 13 is between vascular 12 and regenerator 15.
Vascular is blank pipe, is made up of material such as the stainless steel of poor heat conductivity.Gas in the middle part of it can regard gas piston as.Regenerator is also blank pipe, and be made up of material such as the stainless steel of poor heat conductivity, hot filler is filled in the inside, as stainless steel cloth etc.The best heat conduction of inertia tube material is good, and available copper is made, but also can make with stainless steel.The material that heat exchanger heat conduction is good is made, as with copper etc., as with pipe heat exchanger, then available book wall stainless steel tube.
If inertia tube is the material of the poor heat conductivity such as stainless steel, vascular can by etc. isometric inertia tube latter end replace.
Engine 3 is made up of engine ladder cylinder 32b, engine ladder piston 33b, engine piston bar 34 and linear electric motors 35.Engine ladder cylinder 32b and engine ladder piston 33b forms engine first working chamber 31a and engine second working chamber 31b.Linear electric motors 35 are made up of engine spring 351, external stator 352, coil 353, magnet 354, magnet support 355, inner stator 356 and motor casing 358.Space between engine ladder piston 33b and motor casing 358 is motor cavity 357.Engine spring 351 is flat springs, and the characteristic of flat spring is that rigidity is diametrically very large, and axial rigidity is moderate, can make form gap between engine ladder cylinder 32b and engine ladder piston 33b and form clearance seal.When clearance seal refers to that the gap when between piston and cylinder is very little, Leakage Gas can be ignored.In the axial direction, engine ladder piston 33b, engine piston bar 34, magnet 354, magnet support 355 form a vibrational system with engine spring 351, have an intrinsic frequency.
Vascular indoor temperature end tube connector 11 is connected to engine second working chamber 31b, and regenerator indoor temperature end tube connector 17 is connected to engine first working chamber 31a.Gas back and forth can flow between engine second working chamber 31b, vascular indoor temperature end tube connector 11, vascular indoor temperature end gas uniform device 121, vascular 12, vascular low-temperature end gas uniform device 122, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132, cryogenic heat exchanger 14, regenerator 15, room temperature heat exchanger 16, regenerator indoor temperature end tube connector 17 and engine first working chamber 31a.
The inertia tube vascular arrangement of the present embodiment is used as electricity generation system, as shown in Figure 2, now liquefied natural gas stream 2 is as low-temperature receiver, with inertia tube 13 and cryogenic heat exchanger 14 thermo-contact, thus inertia tube 13 and cryogenic heat exchanger 14 are cooled, room temperature heating circuit 41 and room temperature heat exchanger 16 thermo-contact.
When starting working, an alternating voltage is inputted to linear electric motors 35, engine ladder piston 33b is moved back and forth, in engine first working chamber 31a, engine second working chamber 31b and cold head 1, produces the pressure wave close to sine and the reciprocal pulse pneumatic flowed.Linear electric motors 35 externally output power afterwards.By designed engines first working chamber 31a, the scavenging volume of engine second working chamber 31b, with diameter and the length of inertia tube 13, merit can be made to be inputted to cold junction from vascular indoor temperature end by engine second working chamber 31b, in vascular cold end heat exchanger 14 heat release, heats liquefied natural gas heat release makes it evaporate, simultaneously, room temperature heat exchanger 16 is absorbed heat from room temperature by room temperature heat exchange hot loop 41, engine first working chamber 31a absorbs merit, a merit part of engine first working chamber 31a passes to engine second working chamber 31b, a part moves back and forth external output power for promoting linear electric motors 35.
When power is very large, multiple cold head 1 can be adopted.In order to reduce vibration, engine 3 can use in pairs.In-engine working medium is generally helium, also available hydrogen and the gas of other boiling points higher than minimum operating temperature.
The mode of liquefied natural gas stream 2 and inertia tube 13 and cryogenic heat exchanger 14 thermo-contact can for shown in Fig. 3 around tubular type stream, now liquefied natural gas stream 22 is wrapped in outside cryogenic heat exchanger 14 and inertia tube 13.
Liquefied natural gas stream 2 also can be the jacket type liquefied natural gas stream shown in Fig. 4 with the mode of inertia tube 13 and cryogenic heat exchanger 14 thermo-contact.Jacket type liquefied natural gas stream route one forms round the chuck 232 of inertia tube 13 and cryogenic heat exchanger 14, comprise gaseous natural gas outlet 231 with liquefied natural gas entrance 234, chuck 232 and between inertia tube 13 and cryogenic heat exchanger 14 space be liquefied natural gas runner 233.Liquefied natural gas flows into from liquefied natural gas entrance 234, is heated in liquefied natural gas runner 233, flows out from gaseous natural gas outlet 231.Liquefied natural gas and inertia tube 13 and cryogenic heat exchanger 14 thermo-contact mode can also have other modes, as shell-tube type, plate-fin etc.
In the present embodiment, cryogenic heat exchanger 14 can make various shape.
In addition, because the area of inertia tube 13 is very large, thus, in the present embodiment, cryogenic heat exchanger 14 can arrange very little or not arrange cryogenic heat exchanger 14.
Inertia tube is elongated pipe, and vascular is the pipe that thickness is moderate, and the same occasion of the two cross-sectional area is little, and the bell-mouthed effect of inertia tube makes varying cross-section amass parts to link together sleekly, play a transition role.Inertia tube is very thin, and the inside gas flow rate is very high.Horn mouth makes the flow velocity of the high-speed gas in inertia tube exit reduce with low loss as far as possible.If there is no horn mouth, between thin inertia tube and thick vascular, there is sudden expansion, sudden expansion loss be produced.
If disregard sudden expansion loss, between vascular and regenerator, only have inertia tube also passable.At this moment, inertia tube pipe also plays the effect of cryogenic heat exchanger.
Vascular gas homogenizer is to allow gas Uniform Flow in vascular, not mixing as far as possible, reduces the loss in vascular.
Figure 5 shows that in the present embodiment device, distribute to the maximum pressure within the scope of vascular 12 hot end length and minimum pressure from room temperature heat exchanger 16.
Fig. 6 is the pressure changing of engine in the present embodiment first working chamber 31a and engine second working chamber 31b.
Fig. 7 is the pv diagram of engine first working chamber 31a and engine second working chamber 31b.
Fig. 5 and Fig. 6 shows inertia tube 13 and is operated in half-wavelength form, namely substantially anti-phase at the pressure at two ends of inertia tube 13, and inertia tube 13 approximately centre position pressure is minimum, and two pressure is large.In Fig. 7, engine first working chamber 31a makes positive work, namely absorbs merit, and engine second working chamber 31b does negative work, namely does work to vascular hot junction.The pv diagram area of engine first working chamber 31a is greater than the pv diagram area of engine second working chamber 31b, and namely both differences are the merits externally exported, by the external output power of linear electric motors.
Due to engine first working chamber 31a and engine second working chamber 31b homophase, only have inertia tube 13 that the pressure in it is moved a phase difference, engine first working chamber 31a and engine second working chamber 31b just can one absorb merit, an externally acting.
For a given inertia tube vascular arrangement, inertia tube has a best diameter and length.
The principle of inertia tube is gas high-speed motion inside, has effect of inertia.Effect of inertia makes the pressure of the gas at its two ends have a phase difference, thus makes the pressure at cold head two ends have phase difference, and therefore, the pressure in engine first working chamber 31a and engine second working chamber 31b has phase difference.
In this embodiment, the phase difference about 180 degree of the pressure in engine first working chamber 31a and engine second working chamber 31b.
The length of inertia tube is main relevant with velocity of sound, and velocity of sound is lower, and inertia tube is shorter.Like this, at low temperatures, inertia tube can be shorter.Under low temperature, the viscosity of gas lowers, and density increases.Thus, under low temperature, the inertia of inertia tube strengthens, and flow losses lower.Like this, the efficiency of device increases.
This device can be used as refrigeration machine, low-temperature receiver engine, heat pump or thermo-motor.
Refrigeration machine and low-temperature receiver engine mode as follows:
It is refrigeration machine or engine that the scavenging volume being connected to the engine second working chamber 31b of vascular indoor temperature end tube connector 11 determines this machine with the scavenging volume ratio of the engine first working chamber 31a being connected to regenerator indoor temperature end tube connector 17, and this ratio is called engine operation chamber scavenging volume ratio.
When engine operation chamber scavenging volume ratio is zero, the scavenging volume of engine second working chamber 31b is zero, and merit inputs from engine first working chamber 31a, and be now inertia tube vascular refrigerator, cryogenic heat exchanger 14 will absorb heat.When engine operation chamber scavenging volume ratio increases, the scavenging volume of engine second working chamber 31b increases gradually, starts to absorb merit, and the efficiency of refrigeration machine starts to improve, then increases, and refrigerating efficiency reduces.There is the engine operation chamber scavenging volume ratio that best, make refrigerating efficiency the highest.
When engine operation chamber scavenging volume ratio is infinitely great, the scavenging volume of engine first working chamber 31a is zero, although engine second working chamber 31b output work, not having merit to absorb, is only now a simple heater.When engine operation chamber scavenging volume ratio reduces, the scavenging volume of engine first working chamber 31a increases, and starts to absorb merit, continues to reduce, and start meritorious output, then reduce, generating efficiency increases, then reduces, decrease of power generation.There is the engine operation chamber scavenging volume ratio that best, make generating efficiency the highest.
Between the highest engine operation chamber scavenging volume ratio of refrigerating efficiency and the highest engine operation chamber scavenging volume ratio of generating efficiency, have a critical ratio, now, machine neither freezes, and does not also generate electricity.Thus, engine operation chamber scavenging volume ratio is greater than critical ratio, and this machine is just engine.Being less than critical ratio, is refrigeration machine.
Critical ratio and vascular volume, inertia tube diameter is relevant with length, also relevant with the ratio of room temperature heat exchange temperature with low-temperature heat exchange actuator temperature.
Heat pump and thermo-motor pattern as follows:
When cryogenic heat exchanger 14 temperature is higher than room temperature heat exchanger 16, this device input work can make heat pump and utilizes thermal source to make thermo-motor.
When engine operation chamber scavenging volume ratio increases from zero, thermo-motor efficiency improves gradually, has an optimum value, reduces gradually afterwards.
When engine operation chamber scavenging volume ratio reduces from infinity, heat pump efficiency improves gradually, has an optimum value, reduces gradually afterwards.
Between the highest engine operation chamber scavenging volume ratio of heat pump efficiency and the highest engine operation chamber scavenging volume ratio of generating efficiency, have a critical ratio, now, machine neither heats, and does not also generate electricity.
Thus, engine operation chamber scavenging volume ratio is less than critical ratio, and this machine is just thermo-motor.Being greater than critical ratio, is heat pump.
Inertia effect due to inertia tube is low effective of temperature, therefore, this device be used as refrigeration machine and low-temperature receiver engine effective, should not be good especially as heat pump and heat-source engine effect.
Embodiment 2
A kind of inertia tube vascular arrangement, as shown in Figure 8, comprise cold head 1 and engine 3, cold head 1 is formed by connecting in turn by vascular indoor temperature end tube connector 11, vascular indoor temperature end gas uniform device 121, vascular 12, vascular low-temperature end gas uniform device 122, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132, cryogenic heat exchanger 14, regenerator 15, room temperature heat exchanger 16 and regenerator indoor temperature end tube connector 17.Wherein, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132 form inertia tube part 130.Wherein inertia tube 13 is connected to the cold junction of vascular 12.The upper end of vascular 12 is called vascular indoor temperature end, and lower end is called vascular cold junction, and the lower end of regenerator 15 is called regenerator indoor temperature end, and upper end is called regenerator cold junction.Vascular is blank pipe, and the gas in the middle part of it can regard gas piston as.Regenerator is also blank pipe, and hot filler is filled in the inside, as stainless steel cloth etc.
Engine 3 is made up of engine front air cylinder 32, engine secondary piston 33, engine piston bar 34, linear electric motors 35, engine back piston 36 and engine exhaust hood 37.Engine front air cylinder 32 and engine secondary piston 33 form working chamber 31 before engine, and engine exhaust hood 37 and engine back piston 36 form working chamber 38 after engine.Linear electric motors 35 are made up of engine spring 351, external stator 352, coil 353, magnet 354, magnet support 355, inner stator 356 and motor casing 358.Space between engine secondary piston 33, engine back piston 36 and motor casing 358 is motor cavity 357.Engine spring 351 is flat springs, the characteristic of flat spring is that rigidity is diametrically very large, axial rigidity is moderate, can make form gap between engine front air cylinder 32 and engine secondary piston 33 and form clearance seal, make form gap between engine back piston 36 and engine exhaust hood 37 and form clearance seal.When clearance seal refers to that the gap when between piston and cylinder is very little, Leakage Gas can be ignored.In the axial direction, engine secondary piston 33, engine back piston 36, engine piston bar 34, magnet 354, magnet support 355 form a vibrational system with engine spring 351, have an intrinsic frequency.
Regenerator indoor temperature end tube connector 17 is connected to working chamber 38 after engine, and vascular indoor temperature end tube connector 11 is connected to working chamber 31 before engine.At this moment, before engine, after working chamber 31 and engine, working chamber 38 is anti-phase, and the pressure thus in it wants basic homophase just can an output work, and one absorbs merit.At this moment, require inertia tube 13 to want long enough thus be operated in a wavelength form.That is, inertia tube 13 li has two half-waves, and pressure reverses by first half-wave, and pressure reversion is returned by second half-wave again.
Inertia tube vascular arrangement in the present embodiment can be used as engine, now inertia tube 13 contacts with low-temperature receiver with cryogenic heat exchanger 14, room temperature heat exchanger 16 and room temperature heating circuit 41 thermo-contact, engine operation chamber scavenging volume ratio is greater than critical ratio, merit is inputted from vascular indoor temperature end to cold junction, inertia tube and cryogenic heat exchanger heat low-temperature receiver, and room temperature heat exchanger absorbs heat from room temperature, and engine absorbs merit in the temperature end of regenerator.
This device can be used as refrigeration machine, low-temperature receiver engine, heat pump, thermo-motor.
Before being connected to the engine of vascular indoor temperature end tube connector 11 working chamber 31 scavenging volume and the engine being connected to regenerator indoor temperature end tube connector 17 after the scavenging volume ratio of working chamber 38 to determine this machine be refrigeration machine or engine, this ratio is called engine operation chamber scavenging volume ratio.In the same manner as in Example 1, this device can be used as refrigeration machine, low-temperature receiver engine, heat pump, thermo-motor, is decided by engine operation chamber scavenging volume ratio.When engine operation chamber scavenging volume ratio is greater than critical ratio, be operated in low-temperature receiver engine and heat pump mode, when engine operation chamber scavenging volume ratio is less than critical ratio, be operated in refrigeration machine and thermo-motor pattern.
Embodiment 3
A kind of inertia tube vascular arrangement, as shown in Figure 9, comprise cold head 1 and engine 3, cold head 1 is formed by connecting in turn by vascular indoor temperature end tube connector 11, vascular indoor temperature end gas uniform device 121, vascular 12, vascular low-temperature end gas uniform device 122, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132, cryogenic heat exchanger 14, regenerator 15, room temperature heat exchanger 16 and regenerator indoor temperature end tube connector 17.Wherein, inertia tube first horn mouth 131, inertia tube 13, inertia tube second horn mouth 132 form inertia tube part 130.Wherein inertia tube 13 is connected to the cold junction of vascular 12.The upper end of vascular 12 is called vascular indoor temperature end, and lower end is called vascular cold junction, and the lower end of regenerator 15 is called regenerator indoor temperature end, and upper end is called regenerator cold junction.Vascular is blank pipe, and the gas in the middle part of it can regard gas piston as.Regenerator is also blank pipe, and hot filler is filled in the inside, as stainless steel cloth etc.
Engine 3 is made up of engine front air cylinder 32, engine secondary piston 33, engine piston bar 34, linear electric motors 35, engine front air cylinder baffle plate 39 is provided with in engine front air cylinder 32, before engine front air cylinder 32 is divided into engine by engine front air cylinder baffle plate 39, working chamber 31c carried on the back by working chamber 31 and engine, regenerator indoor temperature end tube connector 17 is connected to engine back of the body working chamber 31c, and vascular indoor temperature end tube connector 11 is connected to working chamber 31 before engine.At this moment, require inertia tube 13 to want long enough thus be operated in a wavelength form.
Inertia tube vascular arrangement in the present embodiment can be used as refrigeration machine, low-temperature receiver engine, heat pump, thermo-motor.In the same manner as in Example 2.
Embodiment 4
A kind of inertia tube vascular arrangement, as shown in Figure 10, the present embodiment difference from Example 3 is,
Regenerator indoor temperature end tube connector 17 is connected to working chamber 31 before engine, and vascular indoor temperature end tube connector 11 is connected to engine back of the body working chamber 31c.At this moment, require inertia tube 13 to want long enough thus be operated in a wavelength form.
Inertia tube vascular arrangement in the present embodiment can be used as refrigeration machine, low-temperature receiver engine, heat pump, thermo-motor, in the same manner as in Example 2.
Embodiment 5
A kind of inertia tube vascular arrangement, as shown in figure 11, the present embodiment difference from Example 4 is,
Inertia tube is combined by inertia tube first horn mouth 131, first inertia tube 13a, the first inertia tube air reservoir horn mouth 133, air reservoir 134, second inertia tube air reservoir horn mouth 135, second inertia tube 13b, inertia tube second horn mouth 132.The effect of air reservoir 134 makes the length of the first inertia tube 13a and the second inertia tube 13b be less than the length of the inertia tube 13 in embodiment 4, thus the flow losses of gas in inertia tube are reduced.
Inertia tube vascular arrangement in the present embodiment can be used as refrigeration machine, low-temperature receiver engine, heat pump, thermo-motor.In the same manner as in Example 2.
During above embodiment describes, the heat of room temperature both from air, also from the hot gas of gas-firing, can also can obtain from water (as seawater etc.).
During above embodiment describes, linear electric motors also can replace with common motor and toggle, and inertia tube vascular arrangement is as the engine used time, and merit also directly can export shaft work or directly apply.Sealing also can with common seal, as piston ring etc.
During above embodiment describes, the length of theoretic inertia tube can be the n multiple of half-wavelength, and n is integer.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an inertia tube vascular arrangement, it is characterized in that, comprise cold head and engine, described cold head comprises vascular, inertia tube, regenerator and room temperature heat exchanger, described inertia tube is between vascular and regenerator, described engine has two operate in antiphase chambeies or has two push-push operation chambeies, and one of them working chamber of described vascular and engine is connected, and described another working chamber of room temperature heat exchanger and engine is connected.
2. a kind of inertia tube vascular arrangement according to claim 1, is characterized in that, described inertia tube makes the pressure wave at cold head two ends have a phase difference, or pressure wave phase difference changes in inertia tube.
3. a kind of inertia tube vascular arrangement according to claim 1, is characterized in that, described cold head is connected in turn by vascular, the first horn mouth, inertia tube, the two or two horn mouth, cryogenic heat exchanger, regenerator and room temperature heat exchanger.
4. a kind of inertia tube vascular arrangement according to claim 1, it is characterized in that, engine ladder cylinder and engine ladder piston is provided with in described engine, described engine ladder cylinder and engine ladder piston form the engine operation chamber of two homophases, and described inertia tube is the microscler inertia tube of half-wave.
5. a kind of inertia tube vascular arrangement according to claim 1, is characterized in that, described vascular by etc. isometric inertia tube latter end replace.
6. a kind of inertia tube vascular arrangement according to claim 1, is characterized in that, described engine has two anti-phase engine operation chambeies, and described inertia tube is Full wave shape inertia tube.
7. a kind of inertia tube vascular arrangement according to claim 1, is characterized in that, described inertia tube is made up of two sections inertia tube and the air reservoir be connected between two sections inertia tube.
8. the application of the inertia tube vascular arrangement according to any one of claim 1 ~ 7, it is characterized in that, inertia tube vascular arrangement is used as engine, now described inertia tube contacts with low-temperature receiver, described room temperature heat exchanger and the thermo-contact of room temperature heating circuit, and engine operation chamber scavenging volume ratio is greater than critical ratio, merit is inputted from vascular indoor temperature end to cold junction, inertia tube heats low-temperature receiver, and room temperature heat exchanger absorbs heat from room temperature, and engine receives merit at room temperature heat exchanger side draught.
9. the application of the inertia tube vascular arrangement according to any one of claim 1 ~ 7, it is characterized in that, inertia tube vascular arrangement is used as electricity generation system, and now liquefied natural gas stream is as low-temperature receiver, with inertia tube thermo-contact, thus to inertia tube cooling, room temperature heating circuit contacts with room temperature exchanger heat, and merit inputs from vascular indoor temperature end to cold junction, inertia tube heats low-temperature receiver, room temperature heat exchanger absorbs heat from room temperature, and engine receives merit at room temperature heat exchanger side draught, external output power.
10. an application for the inertia tube vascular arrangement according to any one of claim 1 ~ 7, is characterized in that, inertia tube vascular arrangement is used as refrigeration machine, high temperature heat source engine or heat pump.
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| CN201310597043.8A CN104654650B (en) | 2013-11-22 | 2013-11-22 | Inertia tube vascular arrangement and its application |
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| WO2020252689A1 (en) * | 2019-06-19 | 2020-12-24 | 中国科学院理化技术研究所 | Combined cycle room temperature refrigeration/heat pump double-effect system |
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| CN113324343A (en) * | 2021-05-07 | 2021-08-31 | 太原理工大学 | Combined cooling heating and power system capable of recovering waste heat |
| CN113324343B (en) * | 2021-05-07 | 2022-06-07 | 太原理工大学 | Combined cooling heating and power system capable of recovering waste heat |
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