Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a solar water heater with a scale cleaning function, which can clean scale attached to the inner wall of a water storage tank, avoid the bad impression of the scale on the water heater and prevent a drain pipe exposed outdoors from frost cracking.
The invention is realized by the following technical scheme:
a solar water heater with scale cleaning function comprises a water storage tank with a cylindrical structure, wherein a drain pipe and a water inlet pipe are arranged on the water storage tank, a fixed box with the cylindrical structure is arranged on the inner wall of the water storage tank, a rotating shaft is arranged in the water storage tank, the axial directions of the rotating shaft, the fixed box and the water storage tank are all on the same straight line, the rotating shaft penetrates through the fixed box and is rotatably connected with the inner wall of the water storage tank, an elastic arc-shaped plate is arranged on the rotating shaft, two ends of the arc-shaped plate are movably connected with the rotating shaft, a connecting rod is further arranged on the arc-shaped plate, and a scraper matched with the; a first blade and a plurality of second blades are arranged in the fixed box, one end of each of the first blades and one end of each of the second blades are uniformly connected with the rotating shaft, the other end of each of the first blades and the second blades are in contact with the inner wall of the circumference of the fixed box, the weight of each of the first blades is larger than that of each of the second blades, the first blades and the scraper blades are positioned in the same radial direction of the water storage tank, a water outlet pipe is arranged at the top of the fixed box and positioned in the water storage tank, a water inlet pipe is arranged at the bottom of the fixed box and communicated; still be equipped with the connecting block between drain pipe and the storage water tank, be equipped with the cavity in the connecting block, drain pipe and cavity intercommunication, still be equipped with fourth elastic component and connecting pipe in the cavity, fourth elastic component one end and cavity inner wall connection, the other end is connected with the connecting pipe, still be equipped with the drain that is communicateing with the connecting block cavity on the storage water tank, when fourth elastic component is in the non-compression state, the connecting pipe passes the drain and stretches into to the storage water tank in, the connecting pipe is located and is equipped with a plurality of bracing pieces on the end in the storage water tank, bracing piece one end is connected with the connecting pipe, and the other end is equipped with the shutoff pole of circular cone structure, the scraper blade can impress the shutoff pole to the drain, still be equipped with the blast pipe.
Aiming at the problems that in the actual use process of the solar water heater in the prior art, because water in the water storage tank is continuously heated, scale generated by water heating is attached to the inner wall of the water storage tank, and because the scale cannot be effectively cleaned for a long time, a very thick layer of scale is attached to the inner wall of the water storage tank, the capacity of storing water in the water storage tank is reduced, and the efficiency of heating water in the water storage tank is lower, therefore, the technical scheme is that a fixed box and a rotating shaft are arranged in the water storage tank, one end of the rotating shaft extends into the fixed box, a first blade and a second blade are arranged on the circumferential outer wall of the rotating shaft extending into the fixed box, because the water inlet pipe of the existing water heater is connected with a water pump, when the water pump works, water is conveyed into the water storage tank through the water inlet pipe, and the water inlet pipe end in the technical scheme is communicated with the fixed box, after high-pressure water conveyed by the water pump enters the fixed box, the impact force generated by the water can push the first blade and the second blade in the fixed box to rotate in the fixed box, so as to drive the rotating shaft to rotate in the water storage box, further the scraper on the rotating shaft is attached to the inner wall of the water storage box to do circular motion, the scale attached in the water storage box is loosened in the rotating process of the scraper in the water storage box, scale impurities hung from the inner wall of the water storage box are conveniently discharged through the water discharge pipe, and therefore, the automatic cleaning process of the scale in the water storage box is realized. When the scale in the water storage tank needs to be cleaned, the valve on the water discharge pipe is opened firstly to discharge the water stored in the water storage tank completely, then a water pump connected with a water inlet pipe is used for introducing water into the fixed box, the water acts on the first blade and the second blade to force the rotating shaft to rotate so as to drive the scraper blade to rotate in the water storage box, the scale attached on the inner wall of the water storage tank is scraped, meanwhile, the water acted after the first blade and the second blade is sprayed upwards through the water outlet pipe to be sprayed to the highest inner wall of the water storage tank and then gradually flows into the inner bottom of the water storage tank along the inner wall of the water storage tank, make the incrustation scale of being scraped the pine by the scraper blade still constantly by following outlet pipe spun water and erodeing, further improved the clearance dynamics to the incrustation scale, the incrustation scale of being scraped the pine at last is discharged from the drain pipe under the scouring action of water, has realized the effective clearance to the incrustation scale.
The scraper blade is at the in-process that strikes off the incrustation scale on the storage water tank inner wall, because there is the difference in the thickness of the incrustation scale of different positions, therefore, clear up the incrustation scale to different thickness in order to satisfy, the event has set up in the pivot and has had elastic arc, the arc adopts spring steel to make and forms, drive the scraper blade at the pivoted in-process when the pivot, when meetting thick scraper blade, the arc both ends that utilize to set up move one section distance in the pivot, make the arc take place bending deformation, and then the pulling scraper blade removes towards keeping away from storage water tank inner wall direction, automatically with the position control of scraper blade to with the thickness of incrustation scale always, the scraper blade is at the in-process that relapses circular motion, strike off this incrustation scale, thereby realized the process.
Meanwhile, aiming at the problem that when the existing water heater is used in winter, a part of the drain pipe is exposed outdoors and is directly communicated with the water storage tank, so that water in the drain pipe cannot be drained completely, the water in the drain pipe is frozen, and the drain pipe is broken, the technical scheme is that the connecting block is arranged at the bottom of the water storage tank, the connecting pipe is arranged in the connecting block, the connecting pipe can be pushed to extend into the water storage tank under the action of the fourth elastic part, at the moment, the drain pipe and the water storage tank are in a communicated state, meanwhile, a small amount of water is introduced into the fixed tank by using the water pump on the water inlet pipe, the water enters the fixed tank, so that the first blade rotates and moves at an angle, the first blade and the connecting pipe in the connecting block are not in the same radial direction of the water storage tank, and the arranged first blade and the hanging plate are in, when the hot water in the water storage tank needs to be used, the valve on the water inlet pipe is opened, the hot water in the water storage tank can enter the connecting block through the water outlet pipe and then flows into the water outlet pipe, the process of normally using the hot water is completed, when the valve on the water inlet pipe is opened in winter, because the port of the water outlet pipe on the fixed box is positioned above the maximum water level line of the water storage tank, the water in the fixed box is completely discharged through the water inlet pipe under the action of atmospheric pressure, and because the weight of the first blade is larger than that of the second blade, the first blade is in the lowest point state when the water in the fixed box is completely discharged, so that the scraper is necessarily consistent with the first blade, also be in the minimum of storage water tank, at this moment, the scraper blade is like in the connecting block with the connecting pipe pressure, make connecting pipe and storage water tank be in and seal the off-state, open the valve on the drain pipe, because the blast pipe one end that sets up communicates with the external world, the other end communicates with the connecting block is inside, under the effect of atmospheric pressure, just can be with staying the row of water in the drain pipe to the greatest extent, the water in the storage water tank water can't be interfered to the in-process of the water exhaust in the drain pipe, thereby make the hydroenergy in the drain to the greatest extent fast, the condition that has avoided taking place the frost crack takes place, simultaneously, in order to guarantee that first blade is in the position of minimum, the water in the inlet pipe needs to be drained, the event also does not have the residue of water in.
Further, still be equipped with two movable blocks in the pivot, the both ends of arc are connected with two movable blocks respectively, be equipped with the connecting hole that matches with the pivot on the movable block, the pivot alternates in the connecting hole, and the movable block can move along the axial direction of pivot in the pivot.
The movable block cover that sets up is in the pivot for the movable block can move along the axial direction of pivot in the pivot, changes the interval between two movable blocks, thereby has changed the bending range of arc board, and then has changed the interval of link plate and storage water tank inner wall, satisfies the incrustation scale of different thickness.
Further, the circumference outer wall both sides of pivot all are equipped with the deflector, and the deflector distributes along the axial direction of pivot, the inner wall both sides of connecting hole all are equipped with the guide way that matches with the deflector, the deflector is located the guide way.
Lie in the movable block activity and set up in the pivot, can enough remove in the pivot in order to satisfy the movable block, it can then the pivot rotate together still to guarantee the movable block simultaneously, so still set up the deflector in the pivot, the deflector inserts in the guide way of movable block, under the mating reaction of deflector and guide way, guarantee that the movable block can enough remove along the axial direction of pivot, can also follow the pivot simultaneously and be circular motion together.
Furthermore, the number of the arc-shaped plates is two, and the two arc-shaped plates are symmetrically arranged on two sides of the movable block; still all be equipped with first elastic component on the arc, the twice of first elastic component are connected with the arc inner wall of arc respectively.
The first elastic component that sets up is the spring, can improve the stability to the arc board, first elastic component is when natural state, when first elastic component does not receive the exogenic action promptly, the arc is in the biggest bending amplitude, the scraper blade is in contact state with the inner wall of storage water tank promptly, after forming the incrustation scale gradually on the storage water tank inner wall, the bending radian of arc board reduces gradually, make the interval crescent at the both ends of arc, force the first elastic component of arc pulling to be in tensile state, after the incrustation scale clearance in the storage water tank has been accomplished, under the effect of first elastic component, can stimulate the arc and reply initial condition fast, the stability of arc has been improved.
Further, all be equipped with the bearing that matches with the pivot in two circle terminal surfaces of storage water tank, the both ends of pivot are connected with two pivots respectively, the end that fixed case direction was kept away from in the pivot stretches out outside the storage water tank to its terminal both sides all are equipped with the sign board, the sign board is located the same radial direction of storage water tank with first blade.
The arranged bearing is used for reducing a friction assembly between the rotating shaft and the water storage tank, so that the rotating speed of the rotating shaft is improved, and the scraper can better clean water scales; because the storage water tank is closed structure, the user can't observe the concrete position of scraper blade in the storage water tank to can't learn the connecting pipe and the same radial direction that the scraper blade is in the storage water tank, and then can't judge whether the connecting pipe is in the intercommunication state with the storage water tank, so lie in the storage water tank at the pivot and set up the sign board on outer, and the sign board lies in the same radial direction of storage water tank with first blade, consequently, can judge whether the scraper blade extrudees the connecting pipe to the connecting block according to the position of sign board during the use.
Furthermore, the water inlet pipe is also provided with a corrugated pipe, one end of the corrugated pipe is communicated with the water inlet pipe, the other end of the corrugated pipe is provided with a movable pipe, the side wall of the water outlet pipe is provided with a connecting port, the connecting port is used for communicating the two sides of the water outlet pipe, the diameter of the connecting port is larger than the inner diameter of the water outlet pipe, the movable pipe penetrates through the water storage tank and is inserted into the connecting port of the water outlet pipe, and the movable pipe can; still be equipped with a fixed section of thick bamboo on the activity pipe, a fixed section of thick bamboo passes through the internal thread and is connected with the activity pipe to a fixed section of thick bamboo passes through the outer wall connection of external screw thread and storage water tank.
Because the oral siphon and the fixed case intercommunication that set up, and when going on to water to the storage water tank, water must advance fixed case, thereby lead to the pivot also can take place to rotate at the in-process of water-feeding, and then make the scraper blade clear up the incrustation scale, lead to being scraped the incrustation scale impression people's the hot water in the normal use storage water tank, for this reason, this technical scheme has still set up another flow path on the inlet tube, when going on water-feeding to solar water heater's storage water tank, insert the movable tube in to the connector of outlet pipe, because the external diameter of movable tube is greater than the internal diameter of outlet pipe, make the movable tube can carry out the shutoff with the outlet pipe, guarantee to get into the unable flow of water to fixed incasement, thereby can't drive the pivot and rotate, and the required water of water-feeding only need flow into to the storage water tank through the movable.
Further, still be equipped with the lug on the lateral wall of outlet pipe, be equipped with the spread groove that matches with the movable tube on the lateral wall of lug, spread groove and connector intercommunication, the inner wall both sides of spread groove all are equipped with the recess, be equipped with third elastic component in the recess, the end of third elastic component is equipped with spacing ball, the both sides of movable tube all are equipped with the spacing groove that matches with spacing ball, and when the movable tube stretches out to the spread groove in, the third elastic component can block spacing ball card into to spacing inslot.
The lug that sets up is used for fixing the movable tube in the play water pipe fast, during the use, promotes the movable tube for the movable tube stretches into to the spread groove of lug in, when spacing groove on the movable tube removed to spacing ball department, under the effect of third elastic component, can promote spacing ball card and go into to the spacing inslot, thereby realized fixing the movable tube in the play water pipe fast purpose, later the fixed section of thick bamboo of rethread is fixed the movable tube on the lateral wall of storage water tank.
Furthermore, the upper surface of the movable pipe is also provided with a water outlet hole, and when the limiting ball is positioned in the limiting groove, the water outlet hole is positioned in the water outlet pipe; a first partition plate and a second partition plate are further arranged in the movable pipe, through holes are formed in the first partition plate and the second partition plate, a second elastic piece is further arranged on the side wall, facing the direction of the second partition plate, of the first partition plate, one end of the second elastic piece is connected with the first partition plate, a blocking plate is arranged at the other end of the second elastic piece, and when the second elastic piece is in a natural state, the blocking plate can block the through holes in the second partition plate; still be equipped with the ejector pin in the spread groove of lug, when the movable tube stretched into to the spread groove of lug in, the ejector pin can pass the through-hole on the second baffle and promote the shutoff board and remove towards first baffle direction.
In order to ensure that the inner part of the movable pipe is in a communicated state when water is supplied and the inner part of the movable pipe is in a closed state when the movable pipe is cleaned, a first partition plate and a second partition plate are arranged in the movable pipe, a second elastic part and a blocking plate are arranged between the first partition plate and the second partition plate, when the movable pipe does not extend into the water outlet pipe, an upper through hole of the movable pipe is positioned in the inner wall of the water storage tank, and simultaneously, the inner part of the movable pipe is in a blocking state under the action of the blocking plate, at the moment, water in the water inlet pipe can only enter the fixed box through the water inlet pipe to drive the rotating shaft to rotate, the scale on the inner wall of the water storage tank is cleaned by utilizing the scraping plate, when the water is required to be supplied, the movable pipe is moved and is inserted into the water outlet pipe, so that the water outlet hole on the movable pipe is positioned in the water outlet pipe, and in the moving, the movable pipe in the original plugging state is in the opening state, so that water in the water inlet pipe can enter the water storage tank through the movable pipe, and the water storage tank is filled with water.
Further, still be equipped with the connecting cylinder that matches with the shutoff pole on the outer wall of storage water tank to the connecting cylinder is located the connecting block, still be equipped with the sealing washer that matches with the shutoff pole on the connecting cylinder inner wall.
The sealing ring that sets up is used for improving the sealed effect of shutoff pole to the storage water tank drain, and when sealed shutoff board pressed the connecting tube as in to the connecting block, the water of storage water tank incasement was taken place to leak.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. when the water pump on the water inlet pipe of the solar water heater is used for supplying water to the water storage tank, the water pressure generated by the water pump can push the first blade and the second blade in the fixed box to rotate so as to drive the rotating shaft to rotate, so that the scraper blade is driven to do circular motion in the water storage tank, the scale attached to the inner wall of the water storage tank is scraped, meanwhile, the first blade and the second blade are driven to rotate and then are upwards sprayed into the water storage tank through the water outlet pipe, the scale loosened by the scraper blade is washed from the inner wall of the water storage tank to the inner bottom, and finally the scale is discharged through the sewage outlet, so that the scale in the water storage tank is quickly and automatically cleaned;
2. according to the solar water heater with the scale cleaning function, the weight of the first blade is larger than that of the second blade, so that when water in the fixed box is drained completely, the fixed box is positioned at the lowest part of the rotating shaft under the action of the gravity of the first blade, namely, the arranged scraper blade is just positioned in the same radial direction of the water storage box with the connecting pipe, the connecting pipe can be pressed into the connecting block by the scraper blade, the connecting pipe and the water storage box are in a disconnected state by using the plugging plate, and the water in the drain pipe can be quickly drained by opening the valve on the drain pipe, so that the aim of draining the drain pipe is fulfilled, and the frost cracking of the drain pipe in winter is avoided;
3. according to the solar water heater with the scale cleaning function, the arc-shaped plate has certain elasticity, so that when the scraper plate cleans scales with different thicknesses on the inner wall of the water storage tank, the arc-shaped plate can automatically adjust the distance between the scraper plate and the water storage tank according to the thickness of the scales, and the scraper plate can clean the scales with different thicknesses;
4. according to the solar water heater with the scale cleaning function, the water outlet pipe can be plugged by the arranged movable pipe, so that when the water storage tank is filled with water, the water in the water inlet pipe cannot flow in the fixed box, the rotating shaft cannot be driven to rotate, the scale attached in the water storage tank cannot be cleaned by the scraper in the water filling process of the water storage tank, the scale generated in cleaning is prevented from being mixed in the water to influence the normal use of the water in the water storage tank, when the water is filled, the water in the water inlet pipe can only enter the water storage tank through the movable pipe, and the scraper is ensured to be in a stop state.