JPS62288384A - Mixing pump - Google Patents

Abstract

PURPOSE:To circulate a liquid in a pump vessel by connecting a hose to a top cover on which a motor is installed via a regulating nozzle and connecting both ends of said hose to a discharge pipe and into a casing. CONSTITUTION:An impeller 14 which is fixed to the end of a shaft 1 3 is housed in a casing 2, and a discharge pipe 17 is installed in an alignment between the circulating port 5 of the casing 2 via a connecting pipe 16 and a top cover 18. A regulating nozzle 28 is installed in a hose fitting member 20, to which a hose 23 for a flexible pipe is connected. A liquid in a pump vessel can be mixed and churned by a jet action from the small hole 21 of the discharge pipe 17.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention The present invention relates to a vertical pump. This relates to a mixing pump for circulation.

INDUSTRIAL APPLICATION FIELD The present invention is an improvement and development of a vertical type pump, which was conventionally considered to be impossible and difficult, and is a pump that can be used in many ways. Therefore, it can be widely used not only in the original field of pump manufacturing, but also in the PE industry where this pump is applied. In particular, this mixing pump is a pump that can be used in all kinds of fields by breaking away from conventional pump functions, so it can be used in industrial fields.

BACKGROUND OF THE INVENTION Conventional vertical pumps are often mixer type pumps or self-priming type pumps. For example, in the case of a mixer pump, there is a pump that mixes and agitates the liquid or fluid in the pump tank and flows out to the outside, and in the case of a self-priming pump, a self-priming pump developed by the applicant (Tokuko Sho). 5B-24
637 special public service Sho 59-867! li), but all of these vertical pots were developed for medium-sized purposes (mixing agitation and self-priming), and are used to remove abrasive grains that have settled at the bottom of the pump tank. Is it possible to mix something with a liquid or circulate this mixed liquid outside the pump body? 2 was considered impossible and difficult. In other words, the present invention has developed a pump that could not be considered with conventional vertical pumps, and any sediment in the pump tank is removed by the liquid (water, oil, etc.) injected into the pump tank. The object of the present invention is to provide a pump which is capable of stirring 11 mixtures of liquids and circulating the mixed liquid outside the pump body.

Problems to be Solved by the Invention The present invention solves the problem of vertical pumps that were conventionally considered impossible and difficult. The problem that the present invention attempts to solve lies in an attempt to develop a mixing pump that has a stirring action and a circulation action outside the pump body. In other words, ■ increasing the internal pressure inside the pump tank and applying injection pressure to the bottom of the pump tank, ■ sucking the mixed liquid inside the pump tank and discharging it to the outside, and ■ discharging to the outside. It can be said that the solutions of the present invention lie in the following: (1) allowing the mixed liquid to be returned to the pump tank; and (2) utilizing the mixed liquid discharged to the outside and being circulated for other purposes.

Means for Solving the Problems The present invention was developed in order to solve the above problems, and includes a pump tank with a conical bottom and an upper lid to which a motor for driving the shaft is attached. In the pump tank, an impeller connected to the shaft via the upper 6 is installed inside the casing, and a suction pipe and a discharge pipe are attached to the bottom and one side of the casing, while an adjustment nozzle is installed in the upper lid. The hose is connected through the casing, and both ends of the hose are connected to the discharge pipe and the inside of the casing to circulate the liquid in the pump tank. , a suction pipe with several small holes for liquid suction, a shield plate with small holes for liquid injection between the casing and the suction pipe, and a discharge with a small hole in the tip for increasing the internal pressure in the pump tank. When the pump starts, the amount of liquid discharged from the discharge pipe is adjusted, the injection pressure from the vortex chamber of the casing is increased, and the liquid in the pump tank is injected downward. On the condition that the liquid inside is sucked, the abrasive grains settled at the bottom of the pump tank are mixed and stirred by the liquid in the bob tank, and the mixed liquid is sent to the discharge pipe, and a button for adjusting the liquid flow rate is used. The discharge pipe and the J4 adjustment nozzle are connected through a hose fitting with a flexible pipe, the hose fitting connected to the adjustment nozzle and the inside of the casing are connected with a return pipe, and a small hole is inserted into the return pipe. By installing a lubrication rod and installing a 34-piece piece that opens and closes a small hole in the return pipe, a mixing pump that conducts the circulating mixed liquid to the lubrication rod and drips it to a desired location can be created. We were able to develop a pump that was considered impossible and difficult to use with vertical pumps. In other words, the means for solving the problems of the present invention are: (1) providing a stirring tank in the pump tank, (2) creating a sealless pump using an oven impeller, (2) attaching a suction pipe and a discharge pipe to the casing, and (2) installing a suction pipe and a discharge pipe in the casing. Make a small hole in the pipe so that the liquid can be injected into the bottom of the pump tank. ■Was it mixed and stirred? To be able to circulate the U mixed liquid outside the pump machine using a hose, ■ To be able to automatically drip the mixed liquid being circulated to the desired location,
etc.

Operation The operation of the mixing pump according to the present invention is based on the principle of a conventional vertical pump. The impeller attached to the tip of the shaft is rotated by the drive of a motor, and the liquid moved by the centrifugal force of the impeller is injected downward from the vortex chamber of the casing, and a suction pipe attached to the underside of the casing. The liquid is also sucked through the small hole and discharged downward.

Due to this downward jet action 7, substances such as abrasive grains deposited at the bottom of the pump tank are stirred with the liquid to form a mixed liquid. The mixed liquid stirred in this way is
The suction port of the suction pipe is sucked into the vortex chamber of the casing,
It is sent from the circulation port of the casing to the discharge pipe and returned to the casing via the hose. That is,
When the pump starts, centrifugal force is applied by the rotation of the impeller, creating a jet action, and the abrasive grains settled at the bottom of the pump tank are momentarily stirred by the liquid in the pump tank. , the liquid and abrasive grains in the stirring tank are mixed. This mixed liquid mixture is returned to the pump tank via the discharge pipe, flexible pipe, and return pipe, so that it is constantly circulated during pump operation. This circulating liquid mixture can be dropped little by little at a desired location by operating the adjustment nozzle.

EXAMPLE Hereinafter, an example of the mixing pump of the present invention will be described with reference to the drawings.

FIG. 1 shows a mixing pump of the present invention, and 1 is the pump body. The pump body 1 consists of a pump tank with a concave bottom and a lid to which a motor is attached, and is molded from a hard PVC material. 2 is a casing in which an impeller 14 fixed to the tip of the shaft 13 is installed;
, ventilation [14], and circulation port 5 are provided. The liquid flow port 3 is a hole through which the liquid in the pump tank flows into the casing 2, and the vent hole 4 is a hole through which air flows into the casing 2. The circulation port 5 is a hole through which the mixed liquid inside the casing 2 is sent out to the outside.

7 is a shield plate for attaching the suction pipe IO to the lower side of the casing 2, and is provided with several small holes. The suction pipe IO is provided with a suction port It and several small holes 12.
Furthermore, a small hole 9 is provided between the casing 2 and the casing 2. I5
This is a vortex chamber in which an impeller 14 is installed inside the partition plate 6 and the shield plate 7, and has the same effect as a conventional self-priming pump. 17 is a discharge pipe and a connecting pipe! 6
It is connected between the circulation port 5 of the casing 2 and the upper M18 via. 20 is a hose fitting in which a flow m'JA adjustment bushing is installed, and a hose 23 for a flexible pipe is connected thereto. One end of the hose fitting 20 is fastened to the tip of the discharge pipe 17 via the upper lid 18 with a fastener.
The other is a hose 2 for a return pipe via an adjustment nozzle 28.
It is linked to 4. Furthermore, a hose 24 for the return pipe
It is connected to the pump body l by a fastener 22 via a cover 18. 25 is a discharge port of the hose 24, and 26 is a set screw of the hose 24. 21 is the casing 2 when fastening the hose fitting 20 to the tip end of the discharge pipe 17.
This is a small hole for increasing the injection pressure from the small hole 8. 27
is a discharge port provided in the hose 24 for the return pipe,
31, so that it can be opened and closed freely with a regular piece 3o. The discharge port 27 is a small hole through which the mixed liquid being circulated drops little by little. Reference numeral 32 denotes a lubricating rod, which is fixed to the return pipe hose 24 with a fixture 31. This oiling rod 32
is provided in order to allow the liquid mixture dropped from the discharge port 27 to drop onto a desired location, and is designed to be freely spreadable. The A adjustment nozzle 28 connects the nozzle to the hose 2.
The flow rate can be adjusted by moving the discharge port 27 closer to or closer to the discharge port 27. 29 is! This is a thumbscrew for the one-way nozzle 21. In addition, I9 is an oil seal for holding the bearing of the retainer 18 that connects the motor and the shaft 13, and 33 is the oil seal for holding the bearing of the retainer 18 that connects the motor and the shaft 13.
It is the foundation of R is a stirring tank inside the pump body 1, and P
is a mixed liquid dripped from the oil filling rod 32.

Fig. 2 shows the usage status of the mixing pump of the present invention, (a) shows when the pump is temporarily stopped and started, (b) shows when the pump is in operation, and (c) shows when the pump is in operation. The shapes of the droplets of the mixed liquid in the inside are shown respectively. First, when the pump is stopped, the abrasive grains S (slurry) settle at the bottom of the stirring r￥MR as shown in (a) figure, and the circulating liquid H is stored in the stirring tank R. There is. That is, when the pump in operation is temporarily stopped F, the mixed liquid being circulated is separated into a layer of abrasive grains S and liquid as shown in 1'A (a) in 4-4, and the abrasive grains S or liquid flows into the stirring tank. It will be precipitated at the bottom of R. Next, when the pump is started, the pressure inside the vortex chamber 15 crystallizes because the discharge pipe 17 has a small hole 21, and the jet action causes the liquid H in the casing 2 to flow through the small hole as shown by the arrow. It is sprayed downward from 8.

On the other hand, NH is also sucked through the small hole 9 of the suction pipe IO by the jet action and is discharged from the suction port 11. In this way? &H for injection and discharge in the F direction, L-7
Then, agitation of the abrasive grains S settled at the bottom is started. By starting this stirring, the abrasive grains S are gradually mixed with the liquid H, so the liquid H is further sucked through the small hole 12 of the suction pipe 10, and the abrasive grains S and the liquid H are completely mixed and stirred. .

Next, by using the gl screw 28, the mixed iP from the discharge port 27 is
Adjust the outflow amount w4, operate the thumbscrew 29 and rA adjustment piece 30, and (b) adjust the amount of mixed liquid W in the pump body l as shown in the figure.
circulate. Furthermore,! When the first straightening piece 30 is opened and rotated, an appropriate amount of the liquid mixture P falling and flowing out from the discharge port 27 can be dripped at a desired location through the oiling rod 32 as shown in FIG. In addition, when stopping the dripping of the oil filler rod 32, if the A adjustment piece 30 is rotated to close, the discharge port 27 will be blocked, and the mixed liquid W in the pump body l will be
It is circulated as shown in (b). Further, when the operation of the pump is stopped, the abrasive grains S and the liquid H are separated, and the abrasive grains S are deposited at the bottom of the pump body 1, as shown in FIG.

Effects of the Invention Since the present invention is configured as described above, it is possible to mix and stir the mixed substance in the pump tank with liquid, to circulate the mixed and stirred liquid mixture outside the pump, and to further circulate the mixed liquid during circulation. Since it can only flow out to the outside, it can be used as a multi-port pump, and has the following effects within the body.

A. Inside the pump tank, the discharge flow pressure and suction flow pressure are balanced, and the jet liquid water ejected from the vortex chamber of the casing mixes the slurry that has settled at the bottom of the pump tank, regardless of the amount of it. It can be stirred.

B. Since it is a sealless pump manufactured for mixing and stirring slurry, it can be operated without any trouble and with peace of mind.

In addition, stirring, circulation, and dripping operations can be performed outside the pump body, which is very convenient.

Since the material of the pump body is molded from synthetic resin material such as hard PVC, it is not only lightweight but also compact and unitized.

Since it uses a special mixing motor, it is not only quiet, but also has an oil seal that protects the bearings so it can be used for a long time.

Since it can be mixed and stirred with high force and high performance, the mixed liquid is suitable for polishing precision liquids.

The present invention, which has many effects as described above, not only allows vertical pumps to be used in ways that were previously impossible and difficult to use, but also improves performance, manufacturing, handling, operation, and application. ,
It is possible to provide a pump that is innovative and unique from all aspects, including economical and user-friendly aspects.

[Brief explanation of the drawing]

Fig. 1 shows a mixing pump according to the present invention; Fig. 1 is a perspective view and an enlarged sectional view, and Fig. 2 is an explanation showing how to use the mixing pump according to the invention and its operation. It is 1. i ------- Pump body 2... Casing 5... Circulation port 7... Shielding plate 8.9.1221... Small hole 10... -Suction pipe 11...Suction port! 3-------Shaft 14-...
Impeller 15 --- Vortex chamber 16 ---
−−Series pipe + 7−−−−−Discharge pipe
18------Top lid 19---Oil seal
20-day... Hose fitting 22-... Fastener
2:l 24---Hose 25---Discharge port 27---Discharge port 28---Adjustment nozzle 1O------=J! l Adjustable piece 32・-・・-
・Oil oil rod

Claims (1)

[Claims] 1. A pump tank having a conical bottom and an upper lid to which a motor for driving the shaft is installed, and the pump tank has an impeller connected to the shaft through the upper lid to the casing. A suction pipe and a discharge pipe are installed inside the casing, and a suction pipe and a discharge pipe are attached to the lower side and one side of the casing, while a hose is connected to the upper cover via an adjustment nozzle, and both ends of the hose are connected to the discharge pipe and the inside of the casing. A mixing pump characterized by circulating a liquid in a pump tank. 2. A casing with a ventilation port, a liquid flow port, and a liquid circulation port, a suction pipe with several small holes for liquid suction, and a shielding plate with small holes for liquid injection between the casing and the suction pipe. It consists of a discharge pipe with a small hole at its tip to increase the internal pressure inside the pump tank.When the pump starts, the amount of liquid discharged from the discharge pipe is adjusted to increase the injection pressure from the vortex chamber of the casing and increase the internal pressure inside the pump tank. The liquid in the pump tank is mixed and agitated by the liquid in the pump tank, with the condition that the liquid in the pump tank is injected downward and the liquid in the pump tank is sucked through the small hole of the suction pipe. The mixing pump according to claim 1, further configured to send the mixed liquid to a discharge pipe. 3. A hose that connects the discharge pipe and the adjustment nozzle with a flexible pipe via a hose fitting with a liquid flow adjustment bush inside, and a hose that connects the hose fitting connected to the adjustment nozzle and the inside of the casing with a return pipe. A small hole is provided in the return pipe, a lubricating rod is attached, and an adjustment piece is further installed to open and close the small hole in the return pipe, so that the circulating mixed liquid is conducted to the lubricating rod and dripped at a desired location. 1st
The mixing pump according to Items 1 and 2.