CN209147064U - A kind of reversed self-cleaning steam generator device - Google Patents

Abstract

The utility model relates to a kind of reversed self-cleaning steam generator devices, including steam generator, heating room and heating structure are equipped in steam generator, heating room on steam generator water inlet end and outlet side be connected to, it further include for switching the reversal valve that fluid flows in water inlet end and outlet side on steam generator, indoor be equipped with of heating can be relative to the conveyor screw of heating room rotation.The water that commutation advance water end (W.E.) flows into is heated structure in heating interior and is heated as steam, switch to pressure difference caused by gas phase from liquid phase using water, conveyor screw is pushed to heat indoor rotation, pass through the friction of conveyor screw and heating chamber interior walls, to eliminate the scale near heating room outlet side, reversal valve commutation, so that water is flowed into from forward outlet side is changed, steam is flowed out from forward water inlet end is changed, so as to eliminate the scale near heating room water inlet end, the reversed self-cleaning steam generator device can be done work by steam pressure and remove heating chamber interior walls scale, improve steam generator heat transfer efficiency, guarantee the quality of the steam generated.

Description

A kind of reversed self-cleaning steam generator device

Technical field

The utility model relates to steam generator technical field more particularly to a kind of reversed self-cleaning steam generator dresses It sets.

Background technique

Steam generator continuously inputs water, steam by the water inlet end to steam generator for generating steam The outlet side of generator can continuously generate required steam.But existing steam generator is there are a defect, It is exactly that after prolonged use, since water is a direction flowing in steam generator, the pipe inner wall of steam generator holds Easy fouling reduces heat transfer efficiency, and it is dirty that hiding is easy after fouling, so that the steam generated has bacterium, to the use band of steam Carry out hidden danger；Such as steam generator in food heating equipment in use, if the pipe scaling of steam generator, by water pipe Then there is security risk in the food that the steamed of outflow cooks.

Summary of the invention

The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of reversed self-cleaning steam generator Device prevents steam generator encrustation, improves steam generator heat transfer efficiency, guarantees the quality of the steam generated.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:

A kind of reversed self-cleaning steam generator device, including steam generator are provided, are equipped with heating in steam generator Room and heating structure, heating room on steam generator water inlet end and outlet side be connected to, further include for switching steam generation The reversal valve that fluid flows in water inlet end and outlet side on device, indoor be equipped with of heating can be relative to the conveyor screw of heating room rotation.

Heating structure is to the heat-generating pipe of oven heats；Before reversal valve commutation, water is flowed into from water inlet end, heated structure Become steam after heating and is flowed out from outlet side；After reversal valve commutation, water is flowed into from forward outlet side is changed, and heated structure adds Become steam after heat and is flowed out from forward water inlet end is changed；Reversal valve commutation front and back, water inlet end and outlet side are successively used as steam Outflow end；By the reversed self-cleaning steam generator device use in food heating equipment technical field, the food cooked can guarantee The safety of object.

In above scheme, the water that commutation advance water end (W.E.) flows into is heated structure in heating interior and is heated as steam, utilizes Water switchs to pressure difference caused by gas phase from liquid phase, pushes conveyor screw heating indoor rotation, passes through conveyor screw and heating chamber interior walls Friction, to eliminate the scale near heating room outlet side, reversal valve commutation so that water is flowed into from forward outlet side is changed, Steam is from forward water inlet end outflow is changed, so as to eliminate the scale near heating room water inlet end, the reversed self-cleaning steam Generating apparatus can be done work by steam pressure and remove heating chamber interior walls scale, and steam generator heat transfer efficiency is improved, and guarantee to produce The quality of raw steam.

Preferably, heating room includes the heating chamber A and heating room B that top is connected, and is all provided in heating chamber A and heating room B There is conveyor screw, water inlet end is connected to heating chamber A bottom, and outlet side is connected to the heating bottom room B；Heating structure is two and difference For heating chamber A and heating room B heating.Setting passes through the length for extending heating room in this way, so that water is sufficiently heated as steam；Separately Outside, heating chamber A and heating room B are set in steam generator vertically and in parallel, the heating room lengthened compared to one, such energy Reduce the space occupied when placing the reversed self-cleaning steam generator device；Before reversal valve commutation, water is flowed into from water inlet end, is steamed Vapour is flowed out from outlet side, switchs to pressure difference caused by gas phase from liquid phase using water, pushes the conveyor screw rotation in heating room B, from And eliminate the scale in heating room B；After reversal valve commutation, water is flowed into from forward outlet side is changed, and steam is from changing forward water inlet Outflow is held, switchs to pressure difference caused by gas phase from liquid phase using water, the conveyor screw rotation in heating chamber A is pushed, adds to eliminate Scale in the A of hot cell；The commutation of reversal valve is eliminated so that heating indoor scale.

It is further preferred that being equipped with the impeller being connected at the top of conveyor screw in heating chamber A and heating room B.Impeller is axis Impeller is flowed, axial wheel is connect at the top of conveyor screw by pin；When water, which switchs to gas phase from liquid phase, generates pressure difference, close to steam The axial wheel of outflow end rotates and conveyor screw is driven to rotate with the scale of heating room where eliminating steam outflow end, due to by When pressure difference, axial wheel is easy to rotate than conveyor screw, and setting in this way improves scale removal effect so that the smooth rotation of spiral physical efficiency Fruit.

Preferably, steam generator include middle shell and the upper cover that is removably connected at the top and bottom of it respectively and under Lid；Heating chamber A and heating room B are set in middle shell；Lower lid, which is equipped with, enters water for being connected to the lower cover of water inlet end and heating chamber A Mouthful, lower lid is equipped with for being connected to outlet side and heating the lower cover gas outlet of room B.Detachable connection method is easy to repair and replaces Trouble unit.

It is further preferred that the junction of upper cover and middle shell is equipped with sealing ring；Or/and lower cover and middle shell junction Equipped with sealing ring.Setting can increase leakproofness in this way.

Preferably, it is equipped with the steam pipe and steam adapting pipe being connected in middle shell, is connected to steam at the top of heating chamber A Pipe, the top heating room B are connected to steam adapting pipe.

It is further preferred that steam pipe is around heating chamber A and heating room B setting and from top ring around to bottom, steam turns Adapter tube road is vertical pipeline.By being rationally arranged and extending fluid flowing path, so that water is sufficiently heated as steam, and reasonable Setting can also save the device the space occupied.

It is further preferred that being steam (vapor) outlet A at the top of heating chamber A, middle case top is equipped with the steaming being connected to steam pipe Vapour entrance A, upper lid are equipped with the upper cover steam channel A for being connected to steam (vapor) outlet A and steam inlet A；Middle housing bottom is equipped with The bottom steam outlet being connected to steam pipe, middle housing bottom are equipped with the bottom steam entrance being connected to steam adapting pipe, under Cover the lower cover steam channel being equipped with for being connected to bottom steam outlet and bottom steam entrance；It is steaming at the top of steam adapting pipe It is steam inlet B at the top of vapor outlet B, heating room B, upper lid is equipped with the upper cover for being connected to steam (vapor) outlet B and steam inlet B and steams Vapour channel B.

Before reversal valve commutation, cleaning step are as follows: 1, water flow water inlet end entered by reversal valve, by lower cover water inlet, arrive It is heated up to heating chamber A；2, steam comes out from steam (vapor) outlet A, by upper cover steam channel A, into steam inlet A；3, it steams Vapour is further heated by steam pipe, and saturation high-temperature steam, by lower cover steam channel, is steamed from bottom steam outlet into bottom Vapour entrance；4, steam passes through steam adapting pipe, comes out from steam (vapor) outlet B, by upper cover jet chimney B, reaches steam inlet B；5, steam enters heating room B and is discharged by lower cover gas outlet by outlet side, switchs to gas phase institute from liquid phase using water at this time The pressure difference of generation pushes the conveyor screw rotation in heating room B, heats room B inner wall scale with cleaning.

Reversal valve commutation after, cleaning step are as follows: 1, water flow by reversal valve entrance change forward outlet side, go out by lower cover Port reaches heating room B and is heated；2, steam comes out from steam inlet B, by upper cover steam channel B, into steam (vapor) outlet B；3, steam passes through steam adapting pipe, comes out from bottom steam entrance, by lower cover steam channel, reaches bottom steam and goes out Mouthful；4, steam is further heated by steam pipe, and saturation high-temperature steam, by upper cover steam channel A, is reached and steamed from steam inlet A Vapor outlet A；5, steam enters heating chamber A, by lower cover water inlet, is discharged by changing forward water inlet end, at this time using water from Liquid phase switchs to pressure difference caused by gas phase, the conveyor screw rotation in heating chamber A is pushed, to clean heating chamber A inner wall scale.

Preferably, conveyor screw includes interior bar and the helical tooth around interior bar setting.Spiral body length and heating room length base This is equal；Position of the helical tooth in interior bar is bottom of the tooth, and the other end opposite with bottom of the tooth is tooth top, and tooth top is narrow, and bottom of the tooth is wide；This It is more preferable that scale removal effect is arranged in sample.

Preferably, reversal valve includes valve body, and cavity is equipped in valve body, is equipped with four runners communicated therewith below cavity, Valve outer surface is equipped with the spigot joint being respectively communicated with four runners；Reversing shaft is equipped in valve body, valve body is equipped with for driving The driving device of dynamic reversing shaft rotation；Commutator segment is connected with below reversing shaft, the surface of commutator segment face cavity lower part is equipped with First diversion trench and the second diversion trench；When driving device drives reversing shaft to rotate forward, the first diversion trench and two adjacent runners connect It is logical, the runner connection adjacent with two other of the second diversion trench；When driving device drives reversing shaft reversion, the first diversion trench and two The adjacent runner connection of item, and wherein a runner is the runner being connected to when reversing shaft rotates forward with the second diversion trench, the second water conservancy diversion The slot runner connection adjacent with two other；Water inlet end and outlet side are respectively connected to two opposite spigot joints in reversal valve In.

In addition two opposite spigot joints are respectively used to reversal valve water inlet and outlet；Spigot joint for water inlet connects First pipe is connected between spigot joint and water inlet end with second pipe, is connected between spigot joint and outlet side with third pipeline It connects, the spigot joint for water outlet connects the 4th pipeline；First diversion trench and the second diversion trench are not through commutator segment；On commutator segment Portion is equipped with embedded hole, and reversing shaft is embedded in embedded hole, and the cross sectional dimensions on embedded hole top is greater than the transversal of embedded hole lower part Face size；When driving device drives reversing shaft rotation, reversing shaft drives commutator segment rotation, and commutator segment rotates so that the first diversion trench And second the position of diversion trench change, by driving reversing shaft to rotate and reverse, can to steam generator water inlet end and The flow direction of fluid switches in outlet side, realizes back flush, prevents steam generator from heating chamber interior walls fouling, improves steam Generator heat transfer efficiency guarantees the quality of the steam generated.

Preferably, valve body includes the upper valve body being detachably connected and lower valve body；Cavity is set in lower valve body, and spigot joint is set In lower valve external surface；Reversing shaft and commutator segment are set in upper valve body, and driving device is set to above upper valve body, upper valve body upper surface Equipped with opening, opening is used for the drive connection of driving device and reversing shaft.Screw hole is set on upper valve body and lower valve body, in screw hole It is upper that screw is installed to realize the connection of upper valve body and lower valve body；The setting being detachably connected can not only simplify the system of the reversal valve It makes, and makes upper valve body and the intracorporal component of lower valve when something goes wrong, easy to repair or replacement.

Preferably, splitter is installed with below upper valve body, splitter is located at below commutator segment and contacts with commutator segment conflict, Through-hole there are four being set at the position of corresponding four runners of splitter.With respect to four runner positions of splitter are constant, the stream in runner Body realizes commutation by the through-hole on splitter, using the first diversion trench on commutator segment and the rotation on the second diversion trench；It changes The surface contacted to piece and splitter is smooth surface, and when this makes commutator segment relative to splitter rotation, the two contact surface is not It is easy to wear；The setting of splitter can increase the air-tightness of the reversal valve.

It is further preferred that being installed with gasket seal in cavity, four are equipped at the position of corresponding four runners of gasket seal A through-hole；Gasket seal is located at below splitter.Fluid in runner passes through the through-hole on gasket seal and splitter, using Commutation is realized in rotation on commutator segment on the first diversion trench and the second diversion trench；The setting of gasket seal can further increase this and change To the air-tightness of valve.

Preferably, the size on reversing shaft top is greater than the size of reversing shaft lower part；Upper valve body inside upper surface is along opening edge Edge is equipped with the hollow shaft that upward valve inner lower surface extends, and through in hollow shaft, reversing shaft lower part is pierced by reversing shaft top Outside hollow shaft；Reversing shaft lower part and hollow outer shaft sleeve are equipped with spring, and the both ends of spring respectively with upper valve body inside upper surface and The contact of commutator segment upper surface.Setting can be such that commutator segment is pressed tightly against in cavity in this way, increase the air-tightness of the reversal valve.

It is further preferred that the lateral wall on reversing shaft top is equipped with groove, matched first sealing ring is arranged in groove； Or/and further include the second sealing ring at upper valve body and lower valve body link position.Setting can increase the reversal valve in this way Air-tightness.

Preferably, driving device is motor；It further include the coupling spindle with motor driven axis connection, the coupling spindle and commutation Axis is drivingly connected.Driving device is stepper motor, and coupling spindle top is equipped with embedded hole, and motor driving shaft is embedded in embedded hole, The cross sectional dimensions on embedded hole top is greater than the cross sectional dimensions of embedded hole lower part；Reversing shaft top is equipped with embedded hole, coupling spindle It is embedded in embedded hole, the cross sectional dimensions on embedded hole top is greater than the cross sectional dimensions of embedded hole lower part；The setting of coupling spindle Convenient for the rotation of motor driving shaft is transferred to reversing shaft.

It is further preferred that further including the position-limit mechanism for limiting motor drive shaft positive gyration and reverse angle.This Sample setting can prevent motor rotational angle transition, and then guarantee the switching of fluid flow direction.

It is further preferred that position-limit mechanism includes the protrusion positioned at coupling spindle lateral wall, and it is located at upper valve body upper surface The arc-shaped limit plate and arc notch that top is arranged around opening, arc-shaped limit plate and arc notch constitute circle, and protrusion can be in arc Rotation in v notch v.

Compared with prior art, the utility model has the beneficial effects that

A kind of reversed self-cleaning steam generator device of the utility model, the water that commutation advance water end (W.E.) flows into are indoor in heating It is heated structure and is heated as steam, switch to pressure difference caused by gas phase from liquid phase using water, push conveyor screw indoor in heating Rotation, by the friction of conveyor screw and heating chamber interior walls, so that the scale near heating room outlet side is eliminated, reversal valve commutation, So that water is flowed into from forward outlet side is changed, steam is from forward water inlet end outflow is changed, so as to eliminate heating room water inlet end Neighbouring scale, the reversed self-cleaning steam generator device can be done work by steam pressure and remove heating chamber interior walls scale, mentioned High steam generator heat transfer efficiency guarantees the quality of the steam generated.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of reversed self-cleaning steam generator device of the present embodiment；

Fig. 2 is the bottom view of steam generator in the present embodiment；

Fig. 3 is B-B sectional view in Fig. 2；

Fig. 4 is A-A sectional view in Fig. 2；

Fig. 5 is C-C sectional view in Fig. 2；

Fig. 6 is a kind of schematic diagram of reversed self-cleaning steam generator device of the present embodiment, and wherein steam generator is to cut open Surface state；

Fig. 7 is a kind of schematic diagram of reversed self-cleaning steam generator device of the present embodiment, and wherein upper cover explodes out；

Fig. 8 is steam generator schematic diagram in the present embodiment, and wherein lower cover explodes out；

Fig. 9 is steam generator explosive view in the present embodiment；

Figure 10 is the explosive view of reversal valve in the present embodiment；

Figure 11 is the sectional view of reversal valve in the present embodiment；

Figure 12 is the structural schematic diagram of the upper valve body of reversal valve in the present embodiment；

Figure 13 is the structural schematic diagram of the lower valve body of reversal valve in the present embodiment；

Figure 14 is the structural schematic diagram of another angle of lower valve body of reversal valve in the present embodiment；

Figure 15 is the structural schematic diagram of the commutator segment of reversal valve in the present embodiment；

Figure 16 is the structural schematic diagram of another angle of commutator segment of reversal valve in the present embodiment；

Figure 17 is the structural schematic diagram of the coupling spindle of reversal valve in the present embodiment；

Drawing reference numeral: 100 lower valve bodies；101 cavitys；102 runners；103 spigot joints；104 gasket seals；200 upper valve bodies； 201 reversing shafts；202 splitters；203 through-holes；204 commutator segments；205 first diversion trenches；206 second diversion trenches；207 hollow shafts； 208 springs；209 openings；210 second sealing rings；211 grooves；212 first sealing rings；300 driving devices；301 coupling spindles；302 Protrusion；303 arc-shaped limit plates；304 arc notch；700 reversal valves；800 steam generators；801 water inlet ends；802 outlet sides； 803 first pipes；804 second pipes；805 third pipelines；806 the 4th pipelines；807 upper covers；808 lower covers；811 heating chamber As； 812 heating room B；813 steam (vapor) outlet A；814 upper cover steam channel A；815 steam inlet A；816 steam pipes；817 bottom steams go out Mouthful；818 lower cover steam channels；819 bottom steam entrances；820 steam adapting pipes；821 steam (vapor) outlet B；822 upper cover steam are logical Road B；823 steam inlet B；831 lower cover water inlets；832 lower cover gas outlets；851 conveyor screws；852 impellers；853 heating structures； 871 sealing rings；8511 interior bars；8512 helical tooths.

Specific embodiment

The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing Illustrate, expression is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.

The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；It is practical at this In novel description, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore retouch in attached drawing The term for stating positional relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.

Embodiment

The present embodiment provides a kind of reversed self-cleaning steam generator devices, as shown in Fig. 1 to Figure 17, including steam generation Device 800, steam generator 800 is interior to be equipped with heating room and heating structure 853, the water inlet end on heating room and steam generator 800 801 are connected to outlet side 802, further include for switching fluid in water inlet end 801 and outlet side 802 on steam generator 800 The reversal valve 700 of flow direction, indoor be equipped with of heating can be relative to the conveyor screw 851 of heating room rotation.

Heating structure 853 is to the heat-generating pipe of oven heats；Before reversal valve 700 commutates, water is flowed into from water inlet end 801, Heated structure 853 becomes steam and flows out from outlet side 802 after heating；After reversal valve 700 commutates, water is from changing forward outlet End 802 flows into, and heated structure 853 becomes steam and flows out from forward water inlet end 801 is changed after heating；Reversal valve 700 commutates Front and back, water inlet end 801 and outlet side 802 are successively used as steam outflow end.

In the present embodiment, the water that water inlet end 801 flows into is heated structure 853 in heating interior and is heated as steam, utilizes Water switchs to pressure difference caused by gas phase from liquid phase, pushes conveyor screw 851 heating indoor rotation, passes through conveyor screw 851 and heating The friction of chamber interior walls, to eliminate the scale near heating room outlet side 802, reversal valve 700 commutates, so that water is forward from changing Outlet side 802 flows into, and steam is flowed out from forward water inlet end 801 is changed, so as to eliminate the water near heating room water inlet end 801 Dirt, the reversed self-cleaning steam generator device can be done work by steam pressure and remove heating chamber interior walls scale, and steam hair is improved Raw device heat transfer efficiency, guarantees the quality of the steam generated.

Wherein, as shown in figure 4, heating room includes the heating chamber A 811 that top is connected and heating room B812, room is heated Conveyor screw 851 is equipped in A811 and heating room B812, water inlet end 801 is connected to 811 bottom of heating chamber A, and outlet side 802 is connected to In the heating bottom room B812；Heating structure 853 is two and respectively heating chamber A (811) and heating room B812 heats.It sets in this way The length by extending heating room is set, so that water is sufficiently heated as steam；In addition, heating chamber A 811 and heating room B812 are vertical And be set in steam generator 800 in parallel, the heating room lengthened compared to one can be reduced place the reversed self-cleaning in this way The space occupied when steam generator device；Before reversal valve 700 commutates, water is flowed into from water inlet end 801, and steam is from outlet side 802 Outflow switchs to pressure difference caused by gas phase from liquid phase using water, pushes the conveyor screw 851 in heating room B812 to rotate, to disappear Except the scale in heating room B812；After reversal valve 700 commutates, water is flowed into from forward outlet side 802 is changed, and steam is forward from changing Water inlet end 801 flows out, and switchs to pressure difference caused by gas phase from liquid phase using water, pushes 851 turns of conveyor screw in heating chamber A 811 It is dynamic, to eliminate the scale in heating chamber A 811；The commutation of reversal valve 700 is eliminated so that heating indoor scale.

In addition, as shown in Figures 4 to 7, it is equipped in heating chamber A 811 and heating room B812 and is connected to the top of conveyor screw 851 Impeller 852.Impeller 852 is axial wheel 852, and axial wheel 852 is connect at the top of conveyor screw 851 by pin；When water from When liquid phase switchs to gas phase generation pressure difference, is rotated close to the axial wheel 852 of steam outflow end and simultaneously conveyor screw 851 is driven to rotate to disappear Except the scale of heating room where steam outflow end, when due to by pressure difference, axial wheel 852 is easy to rotate than conveyor screw 851, this Sample setting enables the smooth rotation of conveyor screw 851, and then raising scale removal effect.

Wherein, as shown in Fig. 8 to Fig. 9, steam generator 800 include middle shell and be removably connected to respectively its top and The upper cover 807 and lower cover 808 of bottom；Heating chamber A 811 and heating room B812 are set in middle shell；Lower cover 808 is equipped with for connecting The lower cover water inlet 831 of logical water inlet end 801 and heating chamber A 811, lower cover 808 are equipped with for being connected to outlet side 802 and heating room The lower cover gas outlet 832 of B812.Detachable connection method is easy to repair and replaces trouble unit.

In addition, as shown in figure 9, the junction of upper cover 807 and middle shell is equipped with sealing ring 871；Or/and lower cover 808 and in The junction of shell is equipped with sealing ring 871.Setting can increase leakproofness in this way.

Wherein, as shown in figure 3, being equipped with the steam pipe 816 and steam adapting pipe 820 being connected in middle shell, room is heated It is connected to steam pipe 816 at the top of A811, is connected to steam adapting pipe 820 at the top of heating room B812.

In addition, steam pipe 816 is around heating chamber A 811 and heating room B812 setting and from top ring around to bottom, steam turns Adapter tube road 820 is vertical pipeline.By being rationally arranged and extending fluid flowing path, so that water is sufficiently heated as steam, Er Qiehe The setting of reason can also save the device the space occupied.

It wherein, as shown in Figures 3 to 8, is steam (vapor) outlet A813 at the top of heating chamber A 811, middle case top is equipped with and steam The steam inlet A815 that pipe 816 is connected to, upper cover 807 are equipped with the upper cover for being connected to steam (vapor) outlet A813 and steam inlet A815 Steam channel A814；Middle housing bottom be equipped be connected to steam pipe 816 bottom steam outlet 817, middle housing bottom equipped with The bottom steam entrance 819 that steam adapting pipe 820 is connected to, lower cover 808 are equipped with for being connected to bottom steam outlet 817 and bottom The lower cover steam channel 818 of portion steam inlet 819；It is steam (vapor) outlet B821, the top heating room B812 at the top of steam adapting pipe 820 Portion is steam inlet B823, and it is logical that upper cover 807 is equipped with the upper cover steam for being connected to steam (vapor) outlet B821 and steam inlet B823 Road B822.

Reversal valve 700 commutate before, cleaning step are as follows: 1, water flow by reversal valve 700 enter water inlet end 801, by lower cover Water inlet 831 reaches heating chamber A 811 and is heated；2, steam comes out from steam (vapor) outlet A813, passes through upper cover steam channel A814, into steam inlet A815；3, steam is further heated by steam pipe 816, and saturation high-temperature steam goes out from bottom steam Mouth 817 is by lower cover steam channel 818, into bottom steam entrance 819；4, steam passes through steam adapting pipe 820, from steam Outlet B821 comes out, and by upper cover jet chimney B822, reaches steam inlet B823；5, steam enters heating room B812, passes through Lower cover gas outlet 832 is discharged by outlet side 802, switchs to pressure difference caused by gas phase from liquid phase using water at this time, pushes heating Conveyor screw 851 in the B812 of room rotates, and heats room B812 inner wall scale with cleaning.

Reversal valve 700 commutate after, cleaning step are as follows: 1, water flow by reversal valve 700 enter change forward outlet side 802, By lower cover gas outlet 832, reaches heating room B812 and heated；2, steam comes out from steam inlet B823, is steamed by upper cover Vapour channel B822, into steam (vapor) outlet B821；3, steam passes through steam adapting pipe 820, comes out from bottom steam entrance 819, By lower cover steam channel 818, bottom steam outlet 817 is reached；4, steam is further heated by steam pipe 816, and saturation is high Warm steam, by upper cover steam channel A814, reaches steam (vapor) outlet A813 from steam inlet A815；5, steam enters heating room A811 is discharged by changing forward water inlet end 801 by lower cover water inlet 831, is switched to gas phase from liquid phase using water at this time and produced Raw pressure difference pushes the conveyor screw 851 in heating chamber A 811 to rotate, to clean 811 inner wall scale of heating chamber A.

In addition, conveyor screw 851 includes interior bar 8511 and the helical tooth 8512 around the setting of interior bar 8511.Conveyor screw 851 is long Degree and heating room length are of substantially equal；Position of the helical tooth 8512 in interior bar 8511 is bottom of the tooth, and opposite with bottom of the tooth is another End is tooth top, and tooth top is narrow, and bottom of the tooth is wide；Setting scale removal effect in this way is more preferable.

In the present embodiment, as shown in Figure 10 to Figure 17, reversal valve 700 includes valve body, is equipped with cavity 101, cavity in valve body 101 lower sections are equipped with four runners 102 communicated therewith, and valve outer surface is equipped with the intubation being respectively communicated with four runners 102 and connects First 103；Reversing shaft 201 is equipped in valve body, valve body is equipped with the driving device 300 for driving reversing shaft 201 to rotate；Reversing shaft 201 lower section is connected with commutator segment 204, and the surface of 204 face cavity of commutator segment, 101 lower part is equipped with the first diversion trench 205 and the Two diversion trenches 206；When driving device 300 drives reversing shaft 201 to rotate forward, the first diversion trench 205 and two adjacent runners 102 connect Logical, the second diversion trench 206 runner 102 adjacent with two other is connected to；When driving device 300 drives reversing shaft 201 to invert, the One diversion trench 205 runner 102 adjacent with two is connected to, and wherein a runner 102 is that reversing shaft 201 is led when rotating forward with second The runner 102 that chute 206 is connected to, the second diversion trench 206 runner 102 adjacent with two other are connected to；Water inlet end 801 and outlet End 802 is respectively connected in reversal valve 700 in two opposite spigot joints 103.

In the present embodiment, as shown in Fig. 1, Figure 14, in addition two opposite spigot joints 103 are respectively used to reversal valve 700 Water inlet and outlet；Spigot joint 103 for water inlet connects first pipe 803, uses between spigot joint 103 and water inlet end 801 Second pipe 804 connects, and is connected between spigot joint 103 and outlet side 802 with third pipeline 805, and the intubation for water outlet connects The 4th pipeline 806 of first 103 connection；As shown in Figure 15 to Figure 16, the first diversion trench 205 and the second diversion trench 206 are not through commutation Piece 204；204 top of commutator segment is equipped with embedded hole, and reversing shaft 201 is embedded in embedded hole, the cross sectional dimensions on embedded hole top Greater than the cross sectional dimensions of embedded hole lower part.

Driving device 300 drives reversing shaft 201 to rotate, and reversing shaft 201 drives commutator segment 204 to rotate, and commutator segment 204 rotates So that the position of the first diversion trench 205 and the second diversion trench 206 changes；As shown in figure 14, it is assumed that driving device 300 rotates forward After in place, the connection of the first diversion trench 205 is identified as 1 and 3 two runners 102, and the connection of the second diversion trench 206 is identified as 2 and 4 Two runners 102, after driving device 300 inverts 90 ° in place, the connection of the first diversion trench 205 is identified as 1 and 2 two runners 102, the connection of the second diversion trench 206 is identified as 3 and 4 two runners 102；At this point, being identified as in 3 and 2 two runners 102 The flow direction of fluid is switched；It, can be to steam generator water inlet end 801 and outlet by driving reversing shaft 201 to rotate and reverse The flow direction of fluid switches in end 802, realizes back flush, prevents steam generator 800 from heating chamber interior walls fouling, improves and steams 800 heat transfer efficiency of vapour generator guarantees the quality of the steam generated.

Wherein, valve body includes the upper valve body 200 being detachably connected and lower valve body 100；Cavity 101 is set in lower valve body 100, Spigot joint 103 is set to 100 outer surface of lower valve body；Reversing shaft 201 and commutator segment 204 are set in upper valve body 200, driving device 300 are set to 200 top of upper valve body, and 200 upper surface of upper valve body is equipped with opening 209, and opening 209 is for driving device 300 and commutation The drive connection of axis 201.Screw hole is set on upper valve body 200 and lower valve body 100, screw is installed on screw hole to realize upper valve body 200 and lower valve body 100 connection；The setting being detachably connected can not only simplify the manufacture of the reversal valve, and make upper valve body 200 and lower valve body in 100 component when something goes wrong, it is easy to repair or replacement.

In addition, be installed with splitter 202 below upper valve body 200, splitter 202 be located at 204 lower section of commutator segment and with commutation Piece 204 contradicts contact, sets that there are four through-holes 203 at the position of corresponding four runners 102 of splitter 202.Splitter 202 opposite four Runner position 102 is set constant, and fluid in runner 102 is by the through-hole 203 on splitter 202, using on commutator segment 204 the Commutation is realized in rotation on one diversion trench 205 and the second diversion trench 206；The surface that commutator segment 204 and splitter 202 contact is Smooth surface, when this rotates commutator segment 204 relative to splitter 202, the two contact surface is not easy to wear；Splitter 202 is set Set the air-tightness that can increase the reversal valve.

Wherein, it is installed with gasket seal 104 in cavity 101, is set at the position of corresponding four runners 102 of gasket seal 104 There are four through-holes 203；Gasket seal 104 is located at 202 lower section of splitter.Fluid in runner by gasket seal 104 and shunts Through-hole 203 on piece 202 is changed using the first diversion trench 205 on commutator segment 204 and the realization of the rotation on the second diversion trench 206 To；Gasket 104 settings can further increase the air-tightness of the reversal valve.

In the present embodiment, as shown in figure 11, the size on 201 top of reversing shaft is greater than the size of 201 lower part of reversing shaft；Upper valve 200 inside upper surface of body is equipped with the hollow shaft 207 extended to 200 bottom inner surface of upper valve body, reversing shaft along 209 edges of opening Through in hollow shaft 207,201 lower part of reversing shaft is pierced by outside hollow shaft 207 on 201 tops；201 lower part of reversing shaft and hollow shaft Be arranged with spring 208 outside 207, and the both ends of spring 208 respectively with 204 upper surface of 200 inside upper surface of upper valve body and commutator segment Contact.Setting can be such that commutator segment 204 is pressed tightly against in cavity 101 in this way, increase the air-tightness of the reversal valve.

In addition, the lateral wall on 201 top of reversing shaft is equipped with groove 211, matched first sealing ring is arranged in groove 211 212；Or/and further include the second sealing ring 210 at 100 link position of upper valve body 200 and lower valve body.Setting can increase in this way Add the air-tightness of the reversal valve.

Wherein, driving device 300 is motor；It further include the coupling spindle 301 with motor driven axis connection, the coupling spindle 301 are drivingly connected with reversing shaft 201.Driving device 300 is stepper motor, and 301 top of coupling spindle is equipped with embedded hole, motor driven Axis is embedded in embedded hole, and the cross sectional dimensions on embedded hole top is greater than the cross sectional dimensions of embedded hole lower part；Reversing shaft top Equipped with embedded hole, coupling spindle is embedded in embedded hole, and the cross sectional dimensions on embedded hole top is greater than the cross section of embedded hole lower part Size；The setting of coupling spindle 301 is convenient for the rotation of motor driving shaft being transferred to reversing shaft 201.

In addition, further including the position-limit mechanism for limiting motor drive shaft positive gyration and reverse angle.Energy is set in this way Motor rotational angle transition is prevented, and then guarantees the switching of fluid flow direction.

In the present embodiment, position-limit mechanism includes the protrusion 302 positioned at 301 lateral wall of coupling spindle, and is located on upper valve body 200 The arc-shaped limit plate 303 and arc notch 304 that surface is arranged around opening 209, arc-shaped limit plate 303 and arc notch 304 constitute circle, and protrusion 302 can rotate in arc notch 304.

Before switching, fluid flows successively through first pipe 803, intakes for the spigot joint 103 of water inlet, with steam generator Spigot joint 103, second pipe 804, the steam generator water inlet end 801, steam generator outlet side 802, the of 801 connection of end Three pipelines 805, the spigot joint 103 being connect with steam generator outlet side 802, for the spigot joint 103 of water outlet and the 4th Pipeline 806；After switching, fluid flows successively through first pipe 803, spigot joint 103 and steam generator outlet for water inlet Spigot joint 103, third pipeline 805, steam generator outlet side 802, the steam generator water inlet end 801, the of 802 connection of end Spigot joint 103 that two pipelines 804 are connect with steam generator water inlet end 801 is managed for the spigot joint 103 of water outlet and the 4th Road 806.

Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in Within the protection scope of the utility model claims.

Claims (10)

1. a kind of reversed self-cleaning steam generator device, including steam generator (800), steam generator (800) is interior to be equipped with Room and heating structure (853) are heated, the water inlet end (801) and outlet side (802) on heating room and steam generator (800) are even It is logical, which is characterized in that further include for switching water inlet end (801) and outlet side (802) interior fluid on steam generator (800) The reversal valve (700) of flow direction, indoor be equipped with of heating can be relative to the conveyor screw (851) of heating room rotation.

2. a kind of reversed self-cleaning steam generator device according to claim 1, which is characterized in that heating room includes top Heating chamber A (811) that portion is connected and heating room B(812), heating chamber A (811) and heating room B(812) in be equipped with conveyor screw (851), water inlet end (801) is connected to heating chamber A (811) bottom, and outlet side (802) are connected to heating room B(812) bottom；Add Heat structure (853) be two and respectively heating chamber A (811) and heating room B(812) heating.

3. a kind of reversed self-cleaning steam generator device according to claim 2, which is characterized in that heating chamber A (811) And heating room B(812) in be equipped with the impeller (852) being connected at the top of conveyor screw (851).

4. a kind of reversed self-cleaning steam generator device according to claim 2, which is characterized in that steam generator (800) upper cover (807) and lower cover (808) for including middle shell and being removably connected at the top and bottom of it respectively；Heating chamber A (811) and heating room B(812) be set to middle shell in；Lower cover (808) is equipped with for being connected to water inlet end (801) and heating chamber A (811) lower cover water inlet (831), lower cover (808) be equipped with for be connected to outlet side (802) and heating room B(812) lower cover Gas outlet (832).

5. a kind of reversed self-cleaning steam generator device according to claim 4, which is characterized in that upper cover (807) and The junction of middle shell is equipped with sealing ring (871)；Or/and the junction of lower cover (808) and middle shell is equipped with sealing ring (871).

6. a kind of reversed self-cleaning steam generator device according to claim 4, which is characterized in that be equipped in middle shell The steam pipe (816) and steam adapting pipe (820) being connected, heating chamber A (811) top are connected to steam pipe (816), heat room B(812) top is connected to steam adapting pipe (820).

7. a kind of reversed self-cleaning steam generator device according to claim 6, which is characterized in that steam pipe (816) Around heating chamber A (811) and heating room B(812) setting and from top ring around to bottom, steam adapting pipe (820) is vertical Pipeline.

8. a kind of reversed self-cleaning steam generator device according to claim 6, which is characterized in that heating chamber A (811) Top is steam (vapor) outlet A(813), middle case top is equipped with the steam inlet A(815 being connected to steam pipe (816)), upper cover (807) be equipped with for being connected to steam (vapor) outlet A(813) and steam inlet A(815) upper cover steam channel A(814)；Middle shell Bottom is equipped with the bottom steam outlet (817) being connected to steam pipe (816), and middle housing bottom is equipped with and steam adapting pipe (820) the bottom steam entrance (819) being connected to, lower cover (808) is equipped with to be steamed for being connected to bottom steam outlet (817) and bottom The lower cover steam channel (818) of vapour entrance (819)；It is steam (vapor) outlet B(821 at the top of steam adapting pipe (820)), heat room B (812) top is steam inlet B(823), upper cover (807) is equipped with for being connected to steam (vapor) outlet B(821) and steam inlet B (823) upper cover steam channel B(822).

9. a kind of reversed self-cleaning steam generator device according to claim 1, which is characterized in that conveyor screw (851) Including interior bar (8511) and around the helical tooth (8512) of interior bar (8511) setting.

10. a kind of reversed self-cleaning steam generator device according to any one of claims 1 to 9, which is characterized in that change Include valve body to valve (700), is equipped with cavity (101) in valve body, four runners communicated therewith are equipped with below cavity (101) (102), valve outer surface is equipped with the spigot joint (103) being respectively communicated with four runners (102)；Reversing shaft is equipped in valve body (201), valve body is equipped with the driving device (300) for driving reversing shaft (201) to rotate；The lower section of reversing shaft (201) connects Have commutator segment (204), the surface of commutator segment (204) face cavity (101) lower part is equipped with the first diversion trench (205) and the second water conservancy diversion Slot (206)；When driving device (300) drives reversing shaft (201) to rotate forward, the first diversion trench (205) and two adjacent runners (102) it is connected to, the second diversion trench (206) runner (102) connection adjacent with two other；Driving device (300) driving commutation When axis (201) inverts, the first diversion trench (205) runner (102) adjacent with two is connected to, and wherein a runner (102) is The runner (102) that reversing shaft (201) is connected to when rotating forward with the second diversion trench (206), the second diversion trench (206) and two other phase Adjacent runner (102) connection；Water inlet end (801) and outlet side (802) are respectively connected in reversal valve (700) two and opposite insert In pipe fitting (103).