CN208019071U - A kind of supercritical carbon dioxide cleaning equipment - Google Patents

Abstract

The utility model provides a kind of supercritical carbon dioxide cleaning equipment, including wiper mechanism, heating mechanism, cooling body, pressure organization of supply, carbon dioxide organization of supply, collecting mechanism, check valve, throttle valve, first control device and second control device；The carbon dioxide organization of supply is connect with the cooling body gas circuit, and the cooling body is connect with the pressure organization of supply gas circuit, and the pressure organization of supply is connect by the check valve with the wiper mechanism gas circuit；The heating mechanism is used to heat the gas circuit between the wiper mechanism and the pressure organization of supply；The wiper mechanism is connected by the throttle valve with the collecting mechanism；The first control device is electrically connected with the pressure organization of supply and the cooling body, and the second control device is electrically connected with the heating mechanism, and second control mechanism is electrically connected with the wiper mechanism.

Description

A kind of supercritical carbon dioxide cleaning equipment

Technical field

The utility model is related to supercritical carbon dioxide fluid cleaning technique more particularly to a kind of supercritical carbon dioxide are clear Wash equipment.

Background technology

Supercritical fluid technique is widely used in food production because of the features such as its is easy to operate, pollution-free, selectivity is good Industry, medical pharmacy, dairy industry, tobacco, oil, agricultural industry, environmental protection etc..Supercritical carbon dioxide fluid technology is new The Environment protection cleaning technology of type practicality, it has larger density, permeability strong and good mass transfer ability, viscosity and surface Power is relatively low.

But there are segmental defects for current supercritical carbon dioxide cleaning equipment, complicated in structure, gas circuit Connect that cumbersome and when being cleaned operational efficiency is not high, and especially cleaning structure assembly takes when clear object in replacement；? In cleaning, when taking out carbon dioxide after object to be cleaned is reacted with supercritical carbon dioxide, because by ambient temperature and gas Pressure influences, and the physical property of supercritical carbon dioxide is converted into gaseous state from Supercritical Conditions so that its solubility declines, former The part dirt of this dissolving can be re-attached on object to be cleaned, reduce the clean level of cleaning.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, provide a kind of supercritical carbon dioxide cleaning Equipment, including wiper mechanism, heating mechanism, cooling body, pressure organization of supply, carbon dioxide organization of supply, collecting mechanism, list To valve, throttle valve, first control device and second control device；

The carbon dioxide organization of supply is connect with the cooling body gas circuit, and the cooling body is supplied with the pressure Mechanism gas circuit connection, the pressure organization of supply are connect by the check valve with the wiper mechanism gas circuit；The heater Structure is used to heat the gas circuit between the wiper mechanism and the pressure organization of supply；The wiper mechanism passes through the throttle valve It is connected with the collecting mechanism；The first control device is electrically connected with the pressure organization of supply and the cooling body It connects, the second control device is electrically connected with the heating mechanism, and second control mechanism is electrically connected with the wiper mechanism.

As a further improvement, the cooling body includes refrigerator and the first fan；Wherein, first fan is used for Air-flow is transferred to the refrigerator；The pressure organization of supply includes high-pressure pump, high-pressure pump driving motor, high pressure revolution speed control Device and gas pressure detector processed；Wherein, the high-pressure pump driving motor is connected with the high-pressure pump；The high pressure revolution speed control Device processed controls the working speed of the high-pressure pump driving motor；The gas pressure detector is connected with the output channel of the high-pressure pump It connects, the output pressure for detecting the high-pressure pump；The first control device includes the first controller and the first operator control panel, In, first controller is controlled with the high-pressure pump driving motor, the gas pressure detector, the high pressure revolution speed respectively Device, first operator control panel electrical connection.

As a further improvement, the heating mechanism includes the second fan, the first connecting pipe, heating pipe, the first company Fitting and adding thermal resistance, wherein the first connecting pipe first end passes through described first with the heating pipe first end Connector is connected；Air-flow is transferred to the second end of first connecting pipe by second fan, and the adding thermal resistance is set In in the heating pipe；Second control mechanism includes thermoregulator and temperature sensor, wherein the temperature passes Sensor is provided close at the heating pipe, and the thermoregulator is electrically connected with second fan, the adding thermal resistance respectively It connects and the temperature sensor is electrically connected.

As a further improvement, first connecting tube is conical pipe, wherein the first connecting tube second end radius is big In the first connecting tube first end radius；

The heating pipe is provided with air outlet, and the air outlet faces the wiper mechanism and the pressure organization of supply Between gas circuit part；Wherein, it is helical structure with the part of the gas circuit of the air outlet face.

As a further improvement, the wiper mechanism includes cleaning kettle, cleaning kettle intake valve and cleaning kettle air outlet valve；Its In, the cleaning kettle includes kettle cover, cylinder and end socket；Described cylinder one end is coaxially disposed and connect with the end socket；It is described The gas that kettle intake valve is cleaned for pressure organization of supply supply introduces the cleaning kettle, and the cleaning kettle air outlet valve is set to On the end socket；

The cylinder other end includes Quick Release portion and supporting part, and the Quick Release portion is coaxially disposed simultaneously with supporting part edge Connection, the Quick Release portion includes several limited blocks, and the limited block extends inwardly along Quick Release portion radial direction；The kettle cover Including several limiting slots, limited block matches described in the limiting slot, and the kettle cover is set to by the limited block in the Quick Release portion On the supporting part.

As a further improvement, the wiper mechanism further comprises the first regulating switch, the second regulating switch and stream Gauge, wherein the throttle valve is connected with the flowmeter, and the flowmeter is connected with the cleaning kettle air outlet valve, uses In the flow for detecting the cleaning kettle air outlet valve；First regulating switch, second regulating switch respectively with the throttling Valve is connected, for adjusting the throttle valve.

As a further improvement, the end socket is circle, the curved edge of the end socket is set to outside the cylinder.

As a further improvement, first regulating switch switchs for flow velocity coarse adjustment, second regulating switch is stream Fast essence regulating switch.

Compared with prior art, this equipment has the beneficial effect that, on the cylinder of cleaning kettle, design quick-disassembly structure make with The efficiency in assembling process improves with kettle cover for it, accelerates the replacement efficiency of object to be cleaned.

The gas circuit connecting pipe road of pressure organization of supply and wiper mechanism uses helical structure, is managed to the part in heat supply mechanism When road is heated, the heating surface area and heated time of the part are increased, gas circuit is reduced and heating plant occupies whole set While standby space, but also the gas circuit in the air path part can fully be heated, the supercritical fluid of carbon dioxide is stabilized State；Overall structure is simply light, function is easy.

Description of the drawings

Fig. 1 is the structural schematic diagram of cooling body and pressure organization of supply in the utility model first embodiment.

Fig. 2 is the integrally-built axonometric drawing on the utility model first embodiment edge.

Fig. 3 is the section view axonometric drawing one of heating mechanism and cleaning structure in the utility model first embodiment.

Fig. 4 is the section view axonometric drawing two of heating mechanism and cleaning structure in the utility model first embodiment.

Fig. 5 is the structural schematic diagram of heating mechanism in the utility model first embodiment.

Fig. 6 is the structural schematic diagram of the utility model first embodiment middle cylinder body.

Fig. 7 is the structural schematic diagram of kettle cover in the utility model first embodiment.

Fig. 8 is the flow diagram of the utility model second embodiment method.

Component symbol explanation

Wiper mechanism 1

Clean kettle 110

Kettle cover 111

Limiting slot 111A

Cylinder 112

Quick Release portion 1121

Limited block 1121A

Supporting part 1122

End socket 113

Clean kettle intake valve 120

Clean kettle air outlet valve 130

First regulating switch 140

Second regulating switch 150

Flowmeter 160

Heating mechanism 2

Second fan 210

First connecting pipe 220

Heating pipe 230

Air outlet 231

First connector 240

Cooling body 3

Refrigerator 310

First fan 320

Pressure organization of supply 4

High-pressure pump 410

High-pressure pump driving motor 420

High-pressure pump rotational speed governor 430

Gas pressure detector 440

First control device 5

First controller 510

First operator control panel 520

Second control device 6

Thermoregulator 610

Temperature sensor 620

Flow indicator 630

Specific implementation mode

To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.The utility model In embodiment, the every other implementation that those of ordinary skill in the art are obtained without creative efforts Mode shall fall within the protection scope of the present invention.Therefore, the embodiment to the utility model provided in the accompanying drawings below Detailed description be not intended to limit claimed the scope of the utility model, but be merely representative of the selected of the utility model Embodiment.Embodiment in the utility model, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship of the instructions such as term "upper", "lower" For orientation or positional relationship shown in the drawings, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or It implies that signified equipment or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as Limitations of the present invention.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

- Fig. 7 is please referred to Fig.1, the first embodiment of the utility model provides a kind of supercritical carbon dioxide cleaning equipment, packet Include wiper mechanism 1, heating mechanism 2, cooling body 3, pressure organization of supply 4, carbon dioxide organization of supply, collecting mechanism, unidirectional Valve, throttle valve, first control device 5 and second control device 6；Carbon dioxide organization of supply is connect with 3 gas circuit of cooling body, Cooling body 3 is connect with 4 gas circuit of pressure organization of supply, and pressure organization of supply 4 is connect by check valve with 1 gas circuit of wiper mechanism； Heating mechanism 2 is used to heat the gas circuit between wiper mechanism 1 and pressure organization of supply 4；Wiper mechanism 1 passes through throttle valve and collection Mechanism is connected；First control device 5 is electrically connected with pressure organization of supply 4 and cooling body 3, second control device 6 with plus Heat engine structure 2 is electrically connected, and the second control mechanism is electrically connected with wiper mechanism 1.

Carbon dioxide organization of supply can be carbon dioxide gas tank.

Cooling body 3 includes refrigerator 310 and the first fan 320；Wherein, the first fan 320 is connected with refrigerator 310 It connects, the first fan 320 is used to air-flow being transferred to refrigerator 310；Pressure organization of supply 4 includes high-pressure pump 410, high-pressure pump drive Dynamic motor 420, high-pressure pump rotational speed governor 430 and gas pressure detector 440；Wherein, the driving of high-pressure pump driving motor 420 Wheel is connect with the driving wheel of high-pressure pump 410 using belt；High-pressure pump rotational speed governor 430 controls high-pressure pump driving motor 420 Working speed, specifically, high-pressure pump 410 is preferably, output pressure is high, noise is small and the plunger with air-flow velocity regulating power Pump, high-pressure pump 410 further comprise that Rotating speed measring wheel, Rotating speed measring wheel are provided with a gap, and high-pressure pump rotational speed governor 430 is Optoelectronic switch, optoelectronic switch are blocked or are reflected and be detected by detecting the light beam that emits optoelectronic switch of gap；Air pressure Detector 440 is connected with the output channel of high-pressure pump 410, the output pressure for detecting high-pressure pump 410；First control device 5 include the first controller 510 and the first operator control panel 520, wherein the first controller 510 respectively with high-pressure pump driving motor 420, Gas pressure detector 440, high-pressure pump rotational speed governor 430, the electrical connection of the first operator control panel 520.

During carbon dioxide switchs to supercritical fluid, air pressure and temperature be key factor, especially air pressure because Element has been applied to dynamic cleaning during the cleaning of the utility model, need to clean the gas flow of kettle intake valve 120 with The gas flow for cleaning kettle intake valve 130 is consistent to stablize the pressure oscillation inside cleaning kettle 110, prevents because of pressure mistake It is small efficiently to carry out dynamic cleaning, it is also prevented from the damage of the physical arrangement caused by hypertonia is to cleaning kettle 110.

Heating mechanism 2 includes the second fan 210, the first connecting pipe 220, heating pipe 230 (T shapes), the first connector 240 and adding thermal resistance, wherein 220 first end of the first connecting pipe passes through the first connector with 230 first end of heating pipe 240 are connected；Second fan 210 is connected (second end is the other end relative to first end) with the second end of first pipe, Air-flow is transferred to the second end of the first connecting pipe 220 by the second fan 210, and adding thermal resistance is set in heating pipe 230；Second Control mechanism includes thermoregulator 610 and temperature sensor 620, wherein temperature sensor 620 is provided close to heating pipe At 230, thermoregulator 610 is electrically connected with the second fan 210, adding thermal resistance respectively and temperature sensor 620 is electrically connected.

In the present embodiment, it includes orthogonal first pipe portion, the second pipe that heating pipe 230, which is T shapes heating pipe 230, Portion, the second pipe portion are connect with the first end of the first connecting tube by the first connector 240 of preferably clip in the present embodiment, Realize dismountable connection relation.Second pipe portion is below the gas circuit between wiper mechanism 1 and pressure organization of supply 4, and second The part of gas circuit between pipe portion face wiper mechanism 1 and pressure organization of supply 4 is provided with air outlet 231, makes heating pipe 230 Pipeline between the thermal current and wiper mechanism 1 and pressure organization of supply 4 of transmission can be heated fully, and in order to further expand Its big heating surface (area) (HS, wherein the part with the gas circuit of 231 face of air outlet is helical structure, and the probe of temperature sensor 620 is set Above screw mechanism；Preferably, the first connecting tube is conical pipe, wherein the first connecting tube second end radius is more than the One connecting tube first end radius enhances the air-flow velocity that the second fan 210 passes over by the physical arrangement of conical pipe, from The aspect of air-flow velocity reinforces the efficiency of heating surface of heating mechanism 2.

Wiper mechanism 1 includes cleaning kettle 110, cleaning kettle intake valve 120 and cleaning kettle intake valve 130；Wherein, kettle is cleaned 110 include kettle cover 111, cylinder 112 and end socket 113；112 one end of cylinder is coaxially disposed and connect with end socket 113；Clean kettle Intake valve 120 introduces cleaning kettle 110 for the gas that pressure organization of supply 4 is supplied, and cleaning kettle intake valve 130 is set to end socket 113 On；Kettle cover 111 is equipped with handle, facilitates crawl kettle cover 111.112 other end of cylinder includes Quick Release portion 1121 and supporting part 1122, Quick Release portion 1121 is with supporting part 1122 along being coaxially disposed and connecting, and Quick Release portion 1121 includes several Quick Release portion 1121A, soon The portion 1121A of tearing open is uniformly distributed in Quick Release portion 1121, and Quick Release portion 1121A extends inwardly along 1121 radial direction of Quick Release portion；Kettle cover 111 include several limiting slot 111A, and limiting slot 111A Quick Release portion 1121A matches, the Quick Release that kettle cover 111 passes through Quick Release portion 1121 Portion 1121A is set on supporting part 1122.

Cleaning kettle 110 is the unit for placing object to be cleaned, and the replacement velocity of object to be cleaned directly affects entirely overcritical The cleaning efficiency of carbon dioxide cleaning equipment, the limit of kettle cover 111 Quick Release portion 1121A structures and cylinder 112 in the present embodiment Slot 111A structures, the replacement efficiency for improving object to be cleaned in cleaning kettle 110 improve the work effect of entire cleaning equipment in turn Rate.

Wiper mechanism 1 further comprises the first regulating switch 140, the second regulating switch 150 and flowmeter 160, In, throttle valve is connected with flowmeter 160, flowmeter 160 with cleaning kettle intake valve 130 be connected, for detect cleaning kettle into The flow of air valve 130；First regulating switch 140, the second regulating switch 150 are connected with throttle valve respectively, for adjusting throttling Valve and then the gas flow for adjusting cleaning kettle intake valve 130 make its gas flow be protected with the gas flow for cleaning kettle intake valve 120 The state of relative equilibrium is held, specifically, second control device 6 further comprises flow indicator 630, flowmeter 160 and flow Display 630 is electrically connected, and the first controller 510 is electrically connected with flow indicator 630, for showing that cleaning kettle intake valve 120 flows 130 flow of amount and cleaning kettle intake valve, facilitates adjusting.Wherein, 120 flow of cleaning kettle intake valve can pass through high-pressure pump 410 Operating rate etc. be reversely pushed out.

End socket 113 is circle, and the curved edge of end socket 113 is set to outside cylinder 112.End socket 113 is preferably ellipsoidal structure, Analyze oval structure from membrane stress, the stress along warp is variation, maximum in the stress of apex, under the line on have Hoop pressure stress enhances the intensity of end socket 113 in the case where the making of end socket 113 material is constant, improves holding for cleaning kettle 110 By pressure.

First regulating switch 140 switchs for flow velocity coarse adjustment, and the second regulating switch 150 is flow velocity essence regulating switch.

The scale interval of 10 times of the adjusting unit essence regulating switch of coarse adjustment switch, smart regulating switch is 1, convenient accurate Adjust the flow velocity of cleaning kettle intake valve 130.

Referring to Fig. 8, Fig. 8 is second of embodiment of the utility model, a kind of supercritical carbon dioxide cleaning side is provided Method includes the following steps,

S10 runs heating mechanism 2, and the gas circuit between wiper mechanism 1 and pressure organization of supply 4 preheats, and makes the gas The temperature on road reaches the temperature condition of supercritical carbon dioxide.

Gas circuit between wiper mechanism 1 and pressure organization of supply 4 is preheated, and reduces gaseous carbon dioxide in cleaning machine The time that gas circuit between structure 1 and pressure organization of supply 4 is heated improves the operational efficiency of integral device.

S20 opens carbon dioxide organization of supply, and the same of carbon dioxide organization of supply is being opened to supply gaseous carbon dioxide Shi Yunhang cooling bodies 3, for the gaseous carbon dioxide that cools down.

Cool down gaseous carbon dioxide, expands with heat and contract with cold, and carbon dioxide volume becomes smaller, the dioxy that high-pressure pump 410 can once transport It is just more to change carbon, improves the efficiency that press pump transports gaseous carbon dioxide, it is preferred that be previously run before not actuated high-pressure pump 410 Cooling body 315~20 minutes.

S30, when the gaseous carbon dioxide temperature in the gas circuit between wiper mechanism 1 and pressure organization of supply 4 reaches dioxy When changing the overcritical value of carbon, operating pressure organization of supply 4 opens cleaning kettle intake valve 120, and then to being waited in cleaning kettle 110 Cleaning materials carries out static rinse；Wherein, static is clearly that object to be cleaned is filled with the supercritical carbon dioxide cleaned in kettle 110 Divide reaction；Here it is worth noting that not emphasized out in cleaning kettle intake valve 120 among the above and cleaning kettle intake valve 130 Closed state is belonged to before opening state.

Object to be cleaned can be dissolved when fully being reacted with supercritical carbon dioxide it is to be cleaned in pollutant.

S40 opens cleaning 110 outlet valve of kettle, terminates static rinse, proceed by dynamic cleaning；Wherein, dynamic cleaning Object to be cleaned is washed away for supercritical carbon dioxide.

The supercritical carbon dioxide containing pollutant is discharged from cleaning kettle 110 is interior using air-flow for dynamic cleaning process.It is worth It is noted that when " opening cleaning 110 outlet valve of kettle to terminate static rinse, proceed by dynamic cleaning ", cleaning is kept To go out throughput consistent with cleaning kettle 110 for the charge flow rate of kettle 110.Prevent cleaning 110 air pressure inside shakiness of kettle from causing, to cleaning Kettle 110, which is formed, to be destroyed.

S50, be discharged the supercritical carbon dioxide containing pollutant and by the supercritical carbon dioxide containing pollutant collect to Collecting mechanism.

Supercritical carbon dioxide in cleaning kettle 110 is being discharged cleaning 110 defensive position external atmosphere pressure of kettle and extraneous temperature Its solubility of the influence of degree can substantially reduce, therefore pollutant can be separated from supercritical carbon dioxide, and be discharged into receipts In collecting mechanism.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent substitution, improvement and etc. done should be included in the utility model protection Within the scope of.

Claims (8)

1. a kind of supercritical carbon dioxide cleaning equipment, which is characterized in that including wiper mechanism, heating mechanism, cooling body, pressure Power organization of supply, carbon dioxide organization of supply, collecting mechanism, check valve, throttle valve, first control device and the second control dress It sets；

The carbon dioxide organization of supply is connect with the cooling body gas circuit, the cooling body and the pressure organization of supply Gas circuit connects, and the pressure organization of supply is connect by the check valve with the wiper mechanism gas circuit；The heating mechanism is used Gas circuit between the heating wiper mechanism and the pressure organization of supply；The wiper mechanism passes through the throttle valve and institute Collecting mechanism is stated to be connected；The first control device is electrically connected with the pressure organization of supply and the cooling body, institute It states second control device to be electrically connected with the heating mechanism, second control mechanism is electrically connected with the wiper mechanism.

2. equipment according to claim 1, which is characterized in that the cooling body includes refrigerator and the first fan；Its In, first fan is used to air-flow being transferred to the refrigerator；The pressure organization of supply includes high-pressure pump, high-pressure pump drive Dynamic motor, high-pressure pump rotational speed governor and gas pressure detector；Wherein, the high-pressure pump driving motor is connected with the high-pressure pump It connects；The high-pressure pump rotational speed governor controls the working speed of the high-pressure pump driving motor；The gas pressure detector with it is described The output channel of high-pressure pump is connected, the output pressure for detecting the high-pressure pump；The first control device includes first Controller and the first operator control panel, wherein first controller is detected with the high-pressure pump driving motor, the air pressure respectively Device, the high-pressure pump rotational speed governor, first operator control panel electrical connection.

3. equipment according to claim 1, which is characterized in that the heating mechanism includes the second fan, the first connecting tube Road, heating pipe, the first connector and adding thermal resistance, wherein the first connecting pipe first end and the heating pipe First end is connected by first connector；Air-flow is transferred to the second of first connecting pipe by second fan End, the adding thermal resistance are set in the heating pipe；Second control mechanism includes thermoregulator and temperature sensing Device, wherein the temperature sensor is provided close at the heating pipe, the thermoregulator respectively with second wind Fan, adding thermal resistance electrical connection and temperature sensor electrical connection.

4. equipment according to claim 3, which is characterized in that first connecting tube is conical pipe, wherein described first Connecting tube second end radius is more than the first connecting tube first end radius；

The heating pipe is provided with air outlet, and the air outlet faces between the wiper mechanism and the pressure organization of supply Gas circuit part；Wherein, it is helical structure with the part of the gas circuit of the air outlet face.

5. equipment according to claim 1, which is characterized in that the wiper mechanism includes cleaning kettle, cleaning kettle intake valve And cleaning kettle air outlet valve；Wherein, the cleaning kettle includes kettle cover, cylinder and end socket；Described cylinder one end and the end socket It is coaxially disposed and connects；Gas of the cleaning kettle intake valve for pressure organization of supply supply introduces the cleaning kettle, The cleaning kettle air outlet valve is set on the end socket；

The cylinder other end includes Quick Release portion and supporting part, and the Quick Release portion along coaxial arrangement and connects with the supporting part It connects, the Quick Release portion includes several limited blocks, and the limited block extends inwardly along Quick Release portion radial direction；The kettle cover packet Several limiting slots are included, limited block matches described in the limiting slot, and the kettle cover is set to institute by the limited block in the Quick Release portion It states on supporting part.

6. equipment according to claim 5, which is characterized in that the wiper mechanism further comprise the first regulating switch, Second regulating switch and flowmeter, wherein the throttle valve is connected with the flowmeter, the flowmeter and the cleaning Kettle air outlet valve is connected, the flow for detecting the cleaning kettle air outlet valve；First regulating switch, described second, which are adjusted, to open Pass is connected with the throttle valve respectively, for adjusting the throttle valve.

7. equipment according to claim 5, which is characterized in that the end socket is circle, and the curved edge of the end socket is set In outside the cylinder.

8. equipment according to claim 6, which is characterized in that first regulating switch switchs for flow velocity coarse adjustment, institute It is flow velocity essence regulating switch to state the second regulating switch.