CN210003476U - piston pump for improving water flow of natural circulation type water heating boiler - Google Patents
piston pump for improving water flow of natural circulation type water heating boiler Download PDFInfo
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- CN210003476U CN210003476U CN201920428270.0U CN201920428270U CN210003476U CN 210003476 U CN210003476 U CN 210003476U CN 201920428270 U CN201920428270 U CN 201920428270U CN 210003476 U CN210003476 U CN 210003476U
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Abstract
A piston pump for improving water flow of natural circulation type water heating boiler is composed of a drive unit consisting of motor and drive axle connected to fixing slot on circular cam, and a sucking unit consisting of movable plate and fixed plate, which are pressed by the bearing of drive unit, and a piston bag between movable plate and fixed plate.
Description
Technical Field
The application relates to the technical field of piston pumps, in particular to piston pumps for improving water flow of a natural circulation type water heating boiler.
Background
The hot-water heating mattress is a mattress which heats water stored in a water tub using a heater of a hot-water heating boiler, and supplies and circulates the generated hot water to a circulation pipe provided inside the hot-water heating mattress. Compared with the existing electric heating pad with the built-in electric heating body, the water heating pad has the advantage that the danger of fire, electric leakage and the like caused by harmful electronic waves and resistance wires can be eliminated.
The conventional water heating mattress is constructed such that water circulation in the water heating mattress is performed by using a water heating boiler, which generally employs a natural circulation type water heating boiler, the natural circulation type water heating boiler is generally constructed by a water tub, a check valve, a heater, and a power supply device, the natural circulation is constructed such that water is heated and vaporized portion by the heater to form an expansion pressure as a motive power for hot water circulation, when the expansion pressure is increased to a predetermined value of , hot water is discharged to the circulation pipe inside the water heating mattress, the hot water flowing through the water heating mattress is changed into low-temperature water and then discharged to the water tub, and water in the water tub is supplied to the heater again to perform natural circulation.
However, the water is circulated by using the expansion pressure, the flowing speed of the water is too slow, so that cycles of the water are circulated in the water heating pad for a long time, and the product performance is not high.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides piston pumps for improving natural circulation formula water heating boiler rivers, through the eccentric rotation of the circular cam of drive division, makes the movable plate of suction portion use the fixed plate to be close or leave as the benchmark, realizes the suction action to solve the slow technical problem of velocity of water flow in the prior art.
A piston pump for improving water flow in a natural circulation water heating boiler, the piston pump comprising a drive section and a suction section;
the driving part comprises a motor and a driving shaft arranged on the motor, the driving shaft is connected with a fixed groove arranged on a circular cam, the peripheral surface of the circular cam is connected with a bearing, the fixed groove is eccentrically arranged on the circular cam, and the circular cam eccentrically rotates when the driving shaft rotates;
the suction part comprises a movable plate and a fixed plate, the contact end of the movable plate is pressed by the bearing of the driving part, and the movable plate approaches or leaves with the fixed plate as a reference;
a suction portion cover is provided at an outer side of the fixed plate, a water inlet pipe and a water outlet pipe are provided between the fixed plate and the suction portion cover, a piston bag is provided between the movable plate and the fixed plate, the water inlet pipe and the water outlet pipe are communicated with the piston bag through a communication hole, the piston bag extending from the communication hole is in contact with a contact surface of the movable plate, the water inlet pipe sucks water into the piston bag when the movable plate is separated from the fixed plate, and the sucked water passing through an inner space of the piston bag is discharged through the water outlet pipe when the movable plate approaches the fixed plate.
, the circular cam of each driving part corresponds to two suction parts, the movable plate sides of the two suction parts are arranged on two sides of the corresponding circular cam by taking the center line of the corresponding circular cam as a symmetry axis, and the two suction parts alternately perform suction.
, a guide cylinder is provided on a surface of the movable plate facing the fixed plate, a slide rod engaged with the guide cylinder is provided on the fixed plate, the guide cylinder and the slide rod are inserted and assembled to form a slide section intervals in a longitudinal direction, and a spring is fitted over outer circumferential surfaces of the guide cylinder and the slide rod to move the movable plate forward or backward in directions between the fixed plate and the bearing and restore the movable plate.
, the driving shaft is provided with a plurality of circular cams at intervals, each circular cam corresponds to suction parts, the outer peripheral surface of the bearing is connected with a fixed wheel, the fixed wheel is connected with the movable plate through a connecting rod, when the driving shaft drives the circular cams to rotate, the fixed wheel slides on the outer peripheral surface of the bearing, and the connecting rod and the movable plate connected with the fixed wheel move up and down simultaneously to compress or extend the piston bag.
, the circular cams on the driving shaft have symmetrical eccentric directions, so that the piston bags of the suction parts can alternately suck.
, the piston bag is made of bellows or soft baffle water bag.
, the motor is selected from electric motor, stepper motor, and gear motor.
The embodiment of the application also provides natural circulation water heating boilers applying the piston pumps, which comprise buckets, heaters, piston pumps and check valves, wherein the buckets are divided into or a plurality of water tanks, water level sensors are arranged in the water tanks, each water tank is provided with a water supply hole and a water discharge hole, the connecting end parts of the water supply holes and the water discharge holes are connected with circulating pipes with single heating or separated heating structures, the heaters are arranged on pipelines between the water discharge holes and the circulating pipes, the piston pumps are arranged between the water discharge holes and water inlets of the heaters, and the check valves are respectively arranged at the front end parts of the water inlet sides of the piston pumps and the rear end parts of the water outlet sides of the piston pumps and are used for enabling water in the circulating pipes to circulate in a single direction towards a water heating pad side through the heaters.
In the above-described aspect of the embodiment of the present invention, the water flow of the natural circulation type water heating boiler is improved by the piston pump, the movable plate of the pumping part is moved closer to or away from the fixed plate by the eccentric rotation of the circular cam of the driving part, thereby performing the pumping operation, and the water circulation speed in the circulation pipe flowing to the water heating pad is remarkably increased, and in addition, two or more pumping parts can be driven by the driving of driving part motors, thereby realizing the low manufacturing cost in manufacturing the separate type water heating pad, and compared with the conventional impeller type circulation pump, the number of the motors used can be reduced by at least half, thereby not only saving the initial manufacturing cost, but also reducing the after-sales service costs such as the replacement of parts, and greatly improving the maintenance operability.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the internal structure of piston pumps for improving water flow of a natural circulation water heating boiler according to an embodiment of the present application;
FIG. 2 is a schematic perspective view of piston pumps for improving water flow of a natural circulation water heating boiler according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a motor according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a driving portion according to an embodiment of the present application;
FIG. 5 is a diagram illustrating an operation state of a driving unit according to an embodiment of the present application;
FIG. 6 is a diagram illustrating the working state of the driving portion and the suction portion according to the embodiment of the present application;
FIG. 7 is a schematic diagram illustrating the operation of a piston pump according to an embodiment of the present application;
FIG. 8 is a diagram illustrating the operation of the driving portion and the suction portion according to the embodiment of the present application;
fig. 9 is a schematic structural view of a natural circulation type water heating boiler to which the piston pump of the present application is applied.
Description of the reference numerals
10: a water bucket; 11: a water level sensor; 12: a water supply hole; 13: a drain hole; 14: a circulation pipe; 20: a heater; 30: a piston pump; 40: a check valve; 100: a drive section; 110: a bearing; 120: a circular cam; 121: fixing grooves; 130: a motor; 131: a drive shaft; 200: a suction section; 210: a movable plate; 211: a guide cylinder; 212: an abutting surface; 213: a contact end; 220: a fixing plate; 221: a slide bar; 230: a spring; 240: a suction part cover; 241: a water inlet pipe; 242: a water outlet pipe; 243: a communicating hole; 250: piston bag; 260: a fixed wheel; 270: a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application , rather than all embodiments.
The water heating system aims to solve the technical problem that in the prior art, a natural circulation type water heating boiler is low in product performance due to the fact that water circulates in a mode that expansion pressure is caused by heating temperature, the flowing speed of water is too low, and accordingly the water circulates in the water heating pad for periods for a long time.
The present application provides piston pumps for improving water flow of a natural circulation type water heating boiler, as shown in fig. 1-2, the piston pump 30 includes a driving part 100 and a pumping part 200;
as shown in fig. 3 to 4, the driving unit 100 includes a motor 130 and a driving shaft 131 provided on the motor 130, the driving shaft 131 is connected to a fixing groove 121 provided on the circular cam 120, a bearing 110 is connected to an outer circumferential surface of the circular cam 120, the fixing groove 121 is eccentrically provided on the circular cam 120, and the circular cam 120 eccentrically rotates when the driving shaft 131 rotates.
The driving shaft 131 may be inserted into the fixing groove 121 of the circular cam 120 to be connected thereto, and the fixing groove 121 is formed at a position eccentrically moving in directions from the center point of the surface of the circular cam 120, so that the circular cam 120 eccentrically rotates when the driving shaft 131 rotates.
The suction unit 200 includes a movable plate 210 and a fixed plate 220, wherein a contact end 213 of the movable plate 210 is pressed by a bearing 110 of the driving unit 100, and the movable plate 210 approaches or separates from the fixed plate 220, wherein the contact end 213 of the movable plate 210 is an end of the movable plate 210 near the bearing 110.
As shown in fig. 5 to 7, a suction cover 240 is provided on an outer side of the fixed plate 220, a water inlet pipe 241 and a water outlet pipe 242 are provided between the fixed plate 220 and the suction cover 240, the water inlet pipe 241 and the water outlet pipe 242 may be directly provided on the suction cover 240, a piston bag 250 is provided between the movable plate 210 and the fixed plate 220, the water inlet pipe 241 and the water outlet pipe 242 are communicated with the piston bag 250 through a communication hole 243, the piston bag 250 extending from the communication hole 243 is in contact with the contact surface 212 of the movable plate 210, the water inlet pipe 241 sucks water into the piston bag 250 when the movable plate 210 is separated from the fixed plate 220, and the sucked water passing through the inner space of the piston bag 250 is discharged through the water outlet pipe 242 when the movable plate 210 approaches the fixed plate 220.
When the piston pump 30 of the present application is applied to the natural circulation type water heating boiler, the water inlet pipe 241 and the water outlet pipe 242 may be connected to the circulation pipe of the natural circulation type water heating boiler, respectively.
The piston bag 250 functions such that, as the movable plate 210 moves, the piston bag 250 sucks water from the inlet tube 241 and discharges the water stored in the piston bag 250 through the outlet tube 242, thereby improving the velocity of the water flowing in the reforming cycle tube.
In the present application, the suction operation is performed by pressing the outer peripheral surface of the piston bag 250. The type of the piston bag 250 in the present application is not particularly limited, and the piston bag 250 in the present application may be a bellows or a soft baffle type water bag, or may be any other form capable of achieving the above-described functions.
The water heating boiler includes two types of circulation pipes connected with a single heating structure and a separate heating structure, wherein each water heating boiler is only connected with circulation pipes, and the water heating boiler is connected with a separate heating structure circulation pipe 14, namely each water heating boiler is connected with at least two sets of circulation pipes, which can also be called a separate water heating boiler.
The application provides two solutions for reducing initial manufacturing cost and the using quantity of the motors when the piston pump is applied to the separated water heating boiler.
is configured such that the two suction units 200 are contracted on both left and right sides of the driving unit about the driving unit 100.
As shown in fig. 1, the circular cam 120 of each driving part 100 corresponds to two of the suction parts 200, the movable plate 210 sides of the two suction parts 200 are disposed on both sides of the corresponding circular cam 120 with the center line of the corresponding circular cam 120 as a symmetry axis, and the two suction parts 200 alternately perform suction.
The center line of the circular cam 120 means that the left and right eccentric distances are the same with the center line as a symmetrical axis, suction units 200 are provided on the left side of driving units 100, suction units 200 are symmetrically provided on the right side of the driving units 100, the movable plates 210 of two suction units 200 are correspondingly provided on both sides of circular cams 120, when the circular cam 120 rotates, the bearing 110 pushes the movable plate 210 of the left suction unit 200, the left suction unit 200 performs suction, the right suction unit 200 stops operating temporarily, and when the bearing 110 pushes the movable plate 210 of the right suction unit 200 along with the rotation of the circular cam 120, the right suction unit 200 performs suction, the left suction unit 200 stops operating temporarily, and the two suction units 200 alternately perform suction.
In the embodiment, a guide tube 211 is provided on a surface of the movable plate 210 facing the fixed plate 220, a slide rod 221 fitted to the guide tube 211 is provided on the fixed plate 220, the guide tube 211 and the slide rod 221 are inserted and assembled to form a -interval slide section in a longitudinal direction, and a spring 230 is fitted over outer circumferential surfaces of the guide tube 221 and the slide rod 221 to advance or retract the movable plate 210 in directions between the fixed plate 221 and the bearing 110 to return.
Between the movable plate 210 and the fixed plate 220, pairs of parallel guide cylinders 211 are provided, and the movable plate 210 can return by advancing or retreating in directions on pairs of parallel guide cylinders 211.
The second scheme is as follows: the driving shaft 131 is provided with a long shaft structure, and the suction unit 200 is contracted up and down with the driving shaft 131 as a reference.
As shown in fig. 8, a driving shaft 131 is extended, a plurality of circular cams 120 are spaced apart from each other on the driving shaft 131, each circular cam 120 corresponds to suction units 200, a fixed wheel 260 is coupled to an outer circumferential surface of the bearing 110, the fixed wheel 260 is assembled to an outer circumferential surface of the bearing 110 coupled to the circular cam 120, the fixed wheel 260 is coupled to the movable plate 210 by a connecting rod 270, the connecting rod 270 extends from the movable plate 210, the fixed wheel 260 slides on the outer circumferential surface of the bearing 110 when the driving shaft 131 rotates the circular cam 120, and the connecting rod 270 and the movable plate 210 coupled to the fixed wheel 260 move up and down at the same time to compress or expand the piston bag 250.
, the circular cams 120 on the driving shaft 131 have symmetrical eccentric directions, so that the piston bags 250 of the suction parts 200 can alternately suck.
In the above two schemes, motors drive two or more suction parts 200 to work, the number of the motors is reduced by at least half, so that not only is the initial manufacturing cost reduced, but also the subsequent replacement cost is greatly reduced or the working efficiency of maintenance is improved.
In a specific embodiment in which the piston pump 30 of the present application is applied to a natural circulation type water heating boiler, as shown in fig. 9, the water heating boiler includes a water tub 10, a heater 20, and check valves 40, the water tub 10 is divided into or more water tanks, a water level sensor 11 is provided in each of the water tanks, a water supply hole 12 and a drain hole 13 are provided in each of the water tanks, a circulation pipe 14 of a single heating or separate heating structure is connected to a connection end of the water supply hole 12 and the drain hole 13, the heater 20 is provided on a pipe between the drain hole 13 and the circulation pipe 14, the piston pump 30 is provided between the drain hole 13 and a water inlet of the heater 20, and the check valves 40 are respectively provided at a front end portion of the water inlet side of the piston pump 30 and a rear end portion of the water outlet side of the piston pump 30 for causing water in the circulation pipe 14 to circulate unidirectionally.
The water inlet pipe 241 of the piston pump 30 is communicated with the water discharge hole 13 through the circulation pipe 14, and the water outlet pipe 242 of the piston pump 30 is also communicated with the water inlet of the heater 20 through the circulation pipe 14.
The sensor head of the water level sensor 11 provided in the sink is provided at a position close to the lower side of the sink for monitoring the amount of water remaining in the sink, and the heater 20 is used to heat the water in the sink to a predetermined temperature.
The heater 20 side is provided with a temperature sensor, the circulating pipe 14 line of side for feeding water into the water tank is also provided with a temperature sensor, the two temperature sensors detect the temperature of the circulating water fed into and discharged from the water tank by taking the water tank as a reference, and the heating of the heater 20 realizes automatic adjustment or automatic stop according to the set temperature, wherein, the heater 20 can adopt an aluminum heating block.
When the water heating boiler starts to operate, after a set temperature (for example, 60 ℃) is determined, the heater 20 starts to heat water to the set temperature, and then when the water temperature reaches the set temperature, the piston pump 30 is activated to rapidly guide the acceleration of the water flow. The piston pump 30 is installed between the water discharging hole 13 of the water tank and the water inlet of the heater to increase the water flowing speed, and the technical problem of slow water flow in the prior art is solved.
The type of the motor in the present application is not particularly limited, and the motor in the present application may be any type of electric motor, stepping motor, or gear motor, or may be another type of motor capable of performing the above-mentioned functions.
In the above-described aspect of the embodiment of the present invention, the water flow of the natural circulation type water heating boiler is improved by the piston pump, the movable plate of the pumping part is moved closer to or away from the fixed plate by the eccentric rotation of the circular cam of the driving part, thereby performing the pumping operation, and the water circulation speed in the circulation pipe flowing to the water heating pad is remarkably increased, and in addition, two or more pumping parts can be driven by the driving of driving part motors, thereby realizing the low manufacturing cost in manufacturing the separate type water heating pad, and compared with the conventional impeller type circulation pump, the number of the motors used can be reduced by at least half, thereby not only saving the initial manufacturing cost, but also reducing the after-sales service costs such as the replacement of parts, and greatly improving the maintenance operability.
This application is intended to cover any variations, uses, or adaptations of the application following, in general, the -like principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains and as may be applied to the essential features hereinbefore set forth, the description and examples are to be regarded as illustrative only and the true scope and spirit of the application is to be indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
1, A piston pump for improving water flow in a natural circulation water heating boiler, characterized in that the piston pump comprises a driving part and a suction part;
the driving part comprises a motor and a driving shaft arranged on the motor, the driving shaft is connected with a fixed groove arranged on a circular cam, the peripheral surface of the circular cam is connected with a bearing, the fixed groove is eccentrically arranged on the circular cam, and the circular cam eccentrically rotates when the driving shaft rotates;
the suction part comprises a movable plate and a fixed plate, the contact end of the movable plate is pressed by the bearing of the driving part, and the movable plate approaches or leaves with the fixed plate as a reference;
a suction portion cover is provided at an outer side of the fixed plate, a water inlet pipe and a water outlet pipe are provided between the fixed plate and the suction portion cover, a piston bag is provided between the movable plate and the fixed plate, the water inlet pipe and the water outlet pipe are communicated with the piston bag through a communication hole, the piston bag extending from the communication hole is in contact with a contact surface of the movable plate, the water inlet pipe sucks water into the piston bag when the movable plate is separated from the fixed plate, and the sucked water passing through an inner space of the piston bag is discharged through the water outlet pipe when the movable plate approaches the fixed plate.
2. The piston pump for improving the flow of a natural circulation type water heating boiler according to claim 1, wherein the circular cam of each driving part corresponds to two of the pumping parts, the movable plate sides of the two pumping parts are disposed on both sides of the corresponding circular cam with a center line of the corresponding circular cam as a symmetry axis, and the two pumping parts alternately perform pumping.
3. The piston pump for improving the flow of a natural circulation type water heating boiler according to claim 2, wherein a guide cylinder is provided on a surface of the movable plate facing the fixed plate, a slide rod engaged with the guide cylinder is provided on the fixed plate, the guide cylinder and the slide rod are inserted and assembled to form a slide section with a constant interval of in a longitudinal direction, and a spring is fitted over outer circumferential surfaces of the guide cylinder and the slide rod to move the movable plate forward or backward in directions between the fixed plate and the bearing to restore the movable plate.
4. The piston pump for improving the water flow of a natural circulation type water heating boiler as claimed in claim 1, wherein a plurality of the circular cams are provided at intervals on the driving shaft, each of the circular cams corresponds to of the pumping parts, a fixed pulley is connected to an outer circumferential surface of the bearing, the fixed pulley is connected to the movable plate through a connecting rod, when the driving shaft rotates the circular cams, the fixed pulley slides on the outer circumferential surface of the bearing, and the connecting rod and the movable plate connected to the fixed pulley move up and down at the same time to compress or extend the piston bag.
5. The piston pump for improving water flow of a natural circulation type water heating boiler as claimed in claim 4, wherein the plurality of circular cams on the driving shaft have eccentric directions symmetrical to each other, so that the piston pockets of the plurality of pumping parts perform pumping alternately with each other.
6. The piston pump for improving the water flow of a natural circulation water heating boiler of any one of claims 1-5, wherein the piston bag is a bellows or a soft baffle type water bag.
7. Piston pump for improving the water flow of a natural circulation water heating boiler in accordance with any of claims 1-5, wherein the motor is selected from any of electric motor, step motor and gear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920428270.0U CN210003476U (en) | 2019-04-01 | 2019-04-01 | piston pump for improving water flow of natural circulation type water heating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920428270.0U CN210003476U (en) | 2019-04-01 | 2019-04-01 | piston pump for improving water flow of natural circulation type water heating boiler |
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| Publication Number | Publication Date |
|---|---|
| CN210003476U true CN210003476U (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920428270.0U Active CN210003476U (en) | 2019-04-01 | 2019-04-01 | piston pump for improving water flow of natural circulation type water heating boiler |
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| CN (1) | CN210003476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882384A (en) * | 2019-04-01 | 2019-06-14 | 延边可喜安东洋电子有限公司 | It is a kind of for improving the piston pump of natural recirculating type hot water space heating boiler water flow |
-
2019
- 2019-04-01 CN CN201920428270.0U patent/CN210003476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882384A (en) * | 2019-04-01 | 2019-06-14 | 延边可喜安东洋电子有限公司 | It is a kind of for improving the piston pump of natural recirculating type hot water space heating boiler water flow |
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