KR20010027331A - water pump equipment of piston-type useless oil - Google Patents

Abstract

PURPOSE: A dry piston type pumping apparatus is provided to reduce parts count and cost by improving power transmission system and prevent environmental contamination by eliminating the necessity of using working oil for pump. CONSTITUTION: A pumping apparatus comprises a piston assembly(104) having a main shaft(102) and a bearing(103) coupled to an end of a centrifugal pump(101); a connection hole(108) formed at the piston assembly so as to be coupled with an absorption pipe(107) connected to the centrifugal pump; a plurality of first accommodation chambers(110) communicated to the connection hole and arranged within the piston assembly so as to accommodate air or priming water; a plurality of inlet openings(111) formed onto the first chamber; a second accommodation chamber(112) communicated to the first accommodation chamber so as to temporarily accommodate the air introduced through the inlet opening of the first chamber or priming water; an external outlet port(113) formed at both ends of the piston assembly so as to discharge the air taken from the centrifugal pump; guide holes(105) formed at the inner surface of the piston assembly; a piston rod(106) arranged to be movable in vertical direction in the guide hole; and an air inlet/outlet unit for sucking or discharging the air existing in the centrifugal pump and an inlet pipeline.

Description

Dry piston pumping device {water pump equipment of piston-type useless oil}

The present invention relates to a pumping device in which the suction pipe of the centrifugal pump and the air inside the centrifugal pump are forcibly discharged to suck up the grease into the centrifugal pump and stop automatically when the normal water is pressurized. At one end of the centrifugal pump, a piston assembly coupled to the main shaft and a bearing, a connection hole formed in the piston assembly for coupling the connection pipe coupled to the centrifugal pump, and connected to the connection hole and formed inside the piston assembly and provided with predetermined air or A plurality of first accommodation chambers configured to accommodate the welcomed items, a plurality of suction holes formed in the upper part of the first accommodation chambers, a second accommodation room connected to the first accommodation chambers and the suction holes for temporarily accommodating the sucked air, or the dead bodies; Is formed at both ends of the piston assembly at a predetermined position and the air sucked from the centrifugal pump is discharged to the outside External exhaust port, at least one guide hole formed with a predetermined inner diameter and a predetermined depth in the piston assembly, a piston rod freely inserted up and down by the guide hole, and air inside the centrifugal pump and the suction pipe passage By including the suction and discharge means of the air for sucking and discharging the water, by eliminating the use of the working oil of the pumping device to prevent the environmental pollution caused by mixing and draining the hydraulic oil with water, and simplified by improving the vacuum pump power transmission method It is possible to reduce the weight and integration of the pump, and to transfer the incorrect vacuum pump driving force due to the wear of the clutch, which is a problem of the electromagnetic or mechanical roller clutch method, or to stop the power automatically when pumping is completed. Dry type to be able to solve problems such as damage It relates to a piston pumping device.

In general, the pump includes a centrifugal pump (1) for waterproofing the water, a pumping device (2) for introducing water (medium) into the centrifugal pump (1), and water flows back into the centrifugal pump (1). A check valve (3) or the like for preventing the liquid from being formed.

The centrifugal pump 1 functions to pressurize and discharge water sucked from a water tank or a river or a reservoir.

And, the pumping device (2) by forcibly discharging the air in the suction pipe line 4 and the centrifugal pump (1) during the initial driving of the pump, the vacuum in the suction pipe line (4) and centrifugal pump (1) The pumping device 2 serves to draw the grease into the centrifugal pump 1 by the vacuum pressure, and when the grease is sucked into the centrifugal pump 1 and the water is normally pressurized, the pumping device 2 The operation stops automatically.

In addition, the check valve 3 is disposed on the outlet 5 side of the centrifugal pump 1 so that when the pump is stopped while the pump is in use, the water from the water pipe line flows back into the centrifugal pump 1 or the centrifugal pump 1 ) It has a function to prevent the inflow of air into the pump and to reuse the pump immediately.

In addition, when the pumping operation during the initial operation of the pump has a function to block the water pipe side, prevent the air intake can be quickly pumped.

As described above, when the pump receives power from a power source (not shown) to drain water, the power take-off (not shown) receives the main shaft 6 of the pump through a drive shaft (not shown). Power).

Therefore, the power of the pumping device 2 is transmitted from the main shaft 6 of the pump to the drive gear 8 by the operation of the mechanical clutch 7 or the electromagnetic clutch (not shown), and the drive gear 8 The power transmitted to) is transmitted to the vacuum pump 10 through a driven gear (not shown), wherein the driving power transmission and shutoff of the pump is made in a power take-off and when the power is transmitted to the pump, the centrifugal pump ( If the main shaft of 1) rotates, and water is filled in the suction pipe line 4 and the centrifugal pump 1, the water is pressurized in accordance with the rotation of the vane 11 of the centrifugal pump 1, but water can be immediately waterproofed. In the initial operation of the pump, since air is already contained in the suction line 4 and the centrifugal pump 1, the pumping device 2 must be operated separately to suck water into the centrifugal pump 1.

The prior art of the pumping device 1 described above is as follows.

First, when the mechanical type is operated by operating the operating lever 21 installed on the outside of the pump to push the shift lever 22 of the roller clutch 7, the roller clutch 7 is connected to the main shaft 6 to drive the main shaft 6. The gear 8 rotates the driven gear (not shown) connected to the shaft 23 of the vacuum pump 10 to rotate the vacuum pump 10, and the electromagnetic type (not shown) is an external electromagnetic clutch operation switch. By pressing and applying power to the electromagnetic clutch assembly, the electromagnetic clutch is operated so that the driving gear 8 coupled to the electromagnetic clutch transfers the rotational force of the main shaft 6 to the shaft 23 of the vacuum pump 10. The vane 24 of the conventional vacuum pump 10 is rotated as shown in FIG. 3 to be transferred to a gear (not shown) to compress and suck air to forcibly discharge it to the steel discharge pipe 25.

When the vacuum pump 10 is operated by the power transmitted as described above, as shown in FIG. 1, the air in the centrifugal pump 1 and the absorption pipe 4 is transferred to the vacuum pump 10 through the intake pipe 26. After the exhaust is completely discharged, the pumping water is pumped into the absorption pipe 4 and the centrifugal pump 1, and the water is pressurized by the rotation of the blade 11 of the centrifugal pump 1.

When the pressurized water reaches a constant pressure, in the case of the mechanical pumping device 2, the pressurized water passes through the connecting pipe 31 shown in FIG. 1 to open the piston 32 of the hydraulic cylinder 30. The shift lever 22 disengages the roller clutch 7 to stop the driving gear 8 so as to stop the driving of the vacuum pump 10, and in the case of an electromagnetic pump (not shown). ), The water pressure switch installed in the watertight pipeline is operated to cut off the power applied to the electronic clutch assembly, thereby disconnecting the electronic clutch and stopping the driving gear power to stop the driving of the vacuum pump.

However, in the mechanical or electromagnetic pumping device 2, the power transmission process is carried out at the main shaft 6 of the centrifugal pump 1 by the clutch 7, the driving gear 8 and the driven gear (not shown), and the vacuum pump. (10) and the accompanying device, and in order to operate the clutch (7) that transmits and cuts power to the vacuum pump (10), it is necessary to configure a separate mechanism or use a separate electric device, so the number of parts used is increased. Due to the complicated structure, there is a problem of uncomfortable management due to securing the installation space and increasing the weight of the device.

In addition, since the vacuum pump 10 is a vane type vacuum pump, hydraulic hydraulic oil or oil injected during operation is mixed with water and discharged into nature, so the environment is seriously polluted, and therefore an urgent improvement is required. Incorrect driving of the vacuum pump 10 due to wear of the clutch clutch 7 or the clutch which is a problem of the electromagnetic method, and the electric clutch or the roller clutch 7 due to the power not being automatically cut off when the pumping operation is completed. There were problems such as breakage.

The present invention devised to solve the above problems solves the problem of environmental pollution by the use of working oil, and by reducing the overall weight of the pump by simplifying by improving the transmission method of power delivered to the vacuum pump. Reduces installation space and also enables automatic operation of the vacuum system without the need for a vacuum pump drive that must be operated at the initial start of the pump. In addition, inaccurate vacuum pump driving force transmission due to wear of mechanical roller clutch or clutch, which is a problem of electromagnetic method, and electric clutch or roller clutch due to power failure are not cut off automatically when pumping work is completed. To solve problems such as All.

In order to achieve the above object, the present invention provides a piston assembly coupled to a main shaft and a bearing at one end of the centrifugal pump, and a connection hole formed in the piston assembly to couple the connection pipe coupled to the centrifugal pump, and the connection hole. And a plurality of first accommodation chambers formed in the piston assembly and configured to receive predetermined air or grease, a plurality of suction holes formed in an upper portion of the first accommodation chamber, and air sucked into and connected to the first accommodation chamber and suction holes. Or a second accommodation chamber for temporarily receiving the dead body, an external discharge port formed at a predetermined position at both ends of the piston assembly to allow the air sucked from the centrifugal pump to be discharged to the outside, and a predetermined inner diameter and a predetermined depth inside the piston assembly. At least one guide hole formed with, and the upper and lower movement in the guide hole freely inserted Sucking the tone rod, and inside air to the centrifugal pump and the inner tube, it comprises a suction exhaust means for discharging air.

And, the suction discharge means of the air is coupled to a predetermined position of the main shaft eccentric rotor which is eccentrically rotated in accordance with the rotation of the main shaft, a piston coupled to one end of the piston rod to suck and discharge the air, and the An elastic member adapted to support the piston on an upper surface thereof, an accommodating part for accommodating the elastic member, a plurality of discharge holes formed in the piston for discharging the air or the pick-up object contained in the second accommodation chamber, and the suction stroke of the piston; It is preferable to include opening and closing means of the suction hole and the discharge hole to open and close the suction hole and the discharge hole alternately according to the discharge stroke.

In addition, the opening and closing means of the suction hole and the discharge hole is coupled to the bottom of the piston and the discharge diaphragm to close the discharge hole, and inserted into the piston rod can be coupled to a predetermined position of the lower portion of the piston to close the suction hole. Preferably, the suction diaphragm is included.

1 is a view showing the appearance of a conventional pump.

Figure 2 shows the structure of a conventional pump.

3 is a view showing a conventional vane type vacuum pump.

Figure 4 shows the appearance of the pump of the present invention.

5 is a diagram showing the overall structure of the present invention;

6 is a view showing the operation of the vacuum pump of the present invention.

7 is a view showing the operation of the vacuum pump of the present invention.

Explanation of Drawings

101-centrifugal pump 102-spindle 103-bearing

104-Piston Assembly 105-Guide 106-Piston Rod

107-connector 108-connector 109-suction line

110-First Room 111-Suction 112- Second Room

113-outlet 114-eccentric rotor 115-piston

116-elastic member 117-accommodating part 118-outlet

119-Drainer 120-Drain diaphragm 121-Suction diaphragm

Bottom of wing 1224-acceptor of 122-centrifugal pump

4 to 7, the configuration of the pumping device of the present invention described above is as follows.

Forced discharge of air in the suction pipe 109 and the centrifugal pump 101 of the centrifugal pump 101 sucks the grease into the centrifugal pump 101 and automatically stops when the water reaches the stage of normal pressurization In the pumping device, the piston assembly 104 coupled to the main shaft 102 and the bearing 103 at one end of the centrifugal pump 101 and the absorption pipe 107 coupled to the centrifugal pump 101 are coupled. A connection hole 108 formed in the piston assembly 104 and a plurality of first accommodation chambers connected to the connection hole 108 and formed in the piston assembly 104 and configured to receive a predetermined air or cargo 110, a plurality of suction holes 111 formed in the upper part of the first accommodation chamber 110, and the air or the pick-up object that is sucked by being connected to the first accommodation chamber 110 and the suction hole 111. Second accommodation chamber 112 for receiving keys and both ends of the piston assembly 104 An external outlet 113 formed at a position and allowing air sucked from the centrifugal pump 101 to be discharged to the outside, and at least one guide hole 105 having a predetermined inner diameter and a predetermined depth inside the piston assembly 104; And a piston rod 106 into which the upper and lower movements are freely inserted in the guide hole 105, and the suction discharge of air for sucking and discharging the air inside the centrifugal pump 101 and the suction pipe passage 109. Means;

In addition, the suction suction means of the air is coupled to a predetermined position of the main shaft 102 and the eccentric rotor 114 is eccentrically rotated in accordance with the rotation of the main shaft 102, and one end of the piston rod 106 and air Piston 115 to suck and discharge, an elastic member 116 to hold the piston 115 on the upper surface of the piston 115, and a receiving portion 117 for accommodating the elastic member 116 ), A plurality of discharge holes 118 formed in the piston 115 for discharging the air or the dead object housed in the second accommodation chamber 112, and suction holes according to the suction stroke and the discharge stroke of the piston 115; 111 and the discharge hole 118 is provided as the opening and closing means of the suction hole and the discharge hole to be opened and closed alternately.

In addition, the opening and closing means of the suction hole and the discharge hole is coupled to the bottom of the piston 115, the discharge diaphragm 120 to close the discharge hole 118, and the piston rod 106 is inserted into the piston ( The suction diaphragm 121 is coupled to a lower predetermined position of the 115 to close the suction hole 111.

The description of the pumping device of the present invention having the above-described configuration will be described with reference to FIGS. 4 to 7 as follows.

First, the eccentric rotor at a predetermined position of the main shaft 102 to be inserted into the piston assembly 104, as shown in Figure 5 on the main shaft 102 to rotate the blade of the centrifugal pump 101 to pressurize the water 114 is coupled to the eccentric rotor 114 is rotated in accordance with the rotation of the main shaft.

When the eccentric rotor 114 rotates according to the rotation of the main shaft 102 as described above, the top dead center of the eccentric rotor 114 is variable according to the rotation, so the eccentric rotor 114 contacts the outer diameter surface of the eccentric rotor 114. The piston rod 106 is moved upward.

In addition, since the piston rod 106 is supported by the elastic member 116 from one end, a force that always tries to return toward the main shaft 102 is applied to the piston on one side in close contact with the outer diameter surface of the eccentric rotor 114. The rod 106a is pushed outward and raised, and the other piston rod 106b is pushed toward the outer diameter surface side of the eccentric rotor 114 by the force of the elastic member 116.

Therefore, whenever the top dead center of the eccentric rotor 114 changes, the upper and lower piston rods 106a and 116b alternately move up and down, and are located at the top dead center of the eccentric rotor 114. When the piston rod 106a rises, the piston 115 coupled to one end of the piston rod 106 moves from the second accommodation chamber 112 to the elastic member 116 side.

At this time, the discharge diaphragm 120 is in close contact with the piston 115 to close the discharge hole 118, the volume of the second accommodation chamber (a) (112a) in accordance with the movement of the piston 115 as described above. As the pressure increases and the pressure drops, the suction diaphragm 121 is opened by the pressure difference between the centrifugal pump 101 and the pressure difference between the second accommodation chamber 112a. The air of the storage chamber 110 and the centrifugal pump 101 is sucked into the second accommodation chamber (a) 112a via the suction hole 111.

When the eccentric rotor 114 rotates 180 ° past the top dead center, the elastic member 116 pushes the piston 115 toward the main shaft 102 along the outer diameter side of the eccentric rotor 114. Accordingly, as shown in FIG. 6, the piston 115 descends toward the main shaft 102 side.

Therefore, since the piston 115 compresses the second accommodation chamber (a) 112a and reduces the volume, the suction diaphragm 121 closes the suction hole 111 by the compressed air and the second accommodation chamber ( A) The air sucked in and received by 112a opens the discharge diaphragm 120 by air pressure and passes through the second accommodation chamber (b) 112b to the external discharge port 113 through the discharge hole 118. Is discharged.

As described above, when the piston 115 rises toward the elastic member 116 side, the air of the centrifugal pump 101 is sucked into the second accommodation chamber 112a and at the same time, the second accommodation chamber B). When the air contained in the (112b) is forcibly discharged through the outer discharge port 113, the piston rod 106 is lowered toward the main shaft 102 along the outer diameter surface of the eccentric rotor 114, the piston 115 is Compresses the air in the second accommodation chamber (b) 112b, and allows the compressed air to exit the second accommodation chamber (b) 112a through the discharge hole 118 to achieve the suction stroke and the discharge stroke. It can be.

In addition, in the two pistons 115 assembled at the upper and lower portions while the eccentric rotor 114 is rotated once, the suction stroke and the discharge stroke are made once each, and the above operation is performed as the eccentric rotor 114 continues to rotate. Repeatedly to discharge all the internal air of the centrifugal pump 101 and the suction pipe 109 is to pump the water inside the centrifugal pump 101 by the vacuum pressure.

At this time, since the capacity of the vacuum pump 130 is determined according to the diameter of the piston 115 and the eccentric amount of the eccentric rotor 114 and the rotational speed of the eccentric rotor 114, it is very important to change these dimensions as necessary. desirable.

And, as described above, when the pumped water is pumped into the centrifugal pump 101, the inflow water is pressurized according to the rotation of the centrifugal pump 101 and the blade 122, and the pressurized inflow water is connected to the centrifugal pump 101. The pipe 107 is introduced into the first accommodation chamber 110 and the second accommodation chamber 112 in the vacuum pump 130.

At this time, since the pressure of the water pressurized by the blade 122 is stronger than the elastic force of the elastic member 116 holding the piston 115, the pressurized water is directed toward the elastic member 116 side. Pushing out, the piston rod 106 is separated from the eccentric rotor 114 as shown in FIG.

Therefore, the piston rod 106 has a predetermined separation space (x) than the rotation radius (d) of the eccentric rotor 114, as shown in Figure 7, the eccentric rotor ( 114 and the piston rod is not operated because the rotation and mutual interference of the piston rod 106 does not occur, the pumping operation can be stopped.

At this time, the piston 115 pushes the discharge diaphragm 120 to be in close contact with the bottom surface 124 of the accommodating part 117 so that the discharge diaphragm 120 blocks the discharge hole 118 so that the pressurized water is discharged to the outside. It is to be discharged to 113, and the stronger the pressure of the pressurized influent, the stronger the adhesion of the discharge diaphragm 120, so that the outflow prevention effect of the influent is further increased.

As described above, the present invention couples the eccentric rotor to the main shaft and achieves the reciprocating motion of the piston rod by the eccentric rotor, and by allowing the piston to continuously suck and discharge the air in the centrifugal pump and the absorption pipe, In addition to reducing the manufacturing cost by reducing the number of devices and related parts, the structure is simple and the breakdown is less, so the maintenance is improved. By using the conventional vane vacuum pump, the environment is contaminated by using the vacuum pump working oil. Prevent it beforehand.

In addition, since the pumping is done automatically during the initial operation of the pump without separately operating the pumping device, the effect can be doubled when applied to a fire truck that suppresses the fire by rapid pump operation. It's a great invention that makes it possible.

Claims (4)

In the pumping device that is forced to discharge the air in the suction pipe of the centrifugal pump and the inside of the centrifugal pump to suck up the grease inside the centrifugal pump and stop the operation automatically when the stage of normal water is pressurized, A piston assembly coupled to a main shaft and a bearing at one end of the centrifugal pump, A connection hole formed in the piston assembly to couple the connection pipe coupled to the centrifugal pump; A plurality of first accommodation chambers connected to the connection holes and formed in the piston assembly and configured to receive predetermined air or cargo; A plurality of suction holes formed in an upper portion of the first accommodation chamber, A second accommodation chamber connected to the first accommodation chamber and a suction hole for temporarily receiving the sucked air or the parcel; An external outlet formed at both ends of the piston assembly and configured to discharge air sucked from the centrifugal pump to the outside; At least one guide hole having a predetermined inner diameter and a predetermined depth in the piston assembly; Piston rod which is freely inserted in the upper and lower movements in the guide hole, And a suction-discharge means for sucking and discharging the air in the centrifugal pump and the suction pipe. The method of claim 1, The suction suction means for the air is coupled to a predetermined position of the main shaft and the eccentric rotor which is eccentrically rotated in accordance with the rotation of the main shaft, A piston coupled to one end of the piston rod to suck and discharge air; An elastic member adapted to support the piston at an upper surface of the piston; Receiving portion for receiving the elastic member, A plurality of discharge holes formed in the piston for discharging the air or the dead object housed in the second accommodation chamber, Dry piston type vacuum pumping device comprising the opening and closing means of the suction hole and the discharge hole for opening and closing the suction and discharge holes alternately in accordance with the suction stroke and the discharge stroke of the piston. The method of claim 2, Opening and closing means of the suction hole and the discharge hole is coupled to the upper portion of the discharge diaphragm to close the discharge hole, And a suction diaphragm inserted into the piston rod to be coupled to a lower predetermined position of the piston to close the suction hole. The method of claim 1, Dry pumping device, characterized in that the pumping device is made by coupling to the fire pump for the fire truck.