JP2005517867A - Pump using waste tires - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump having improved pump wear resistance and corrosion resistance, which can be easily maintained and repaired at low cost, and has effects such as prevention of water hammer and freezing.
A casing body 110 in the present invention is made of a waste tire. The suction part 130 is fixed to one hole of the casing main body 110, and the housing 120 is fixed to the other hole together with the impeller 150. The discharge part 140 is penetrated and fixed to a predetermined part of the casing body 110. An auxiliary blade 152 made of waste tire is installed on the blade of the impeller 150.

Description

  The present invention relates to a pump that is a machine that transports a fluid through a pipe using a pressure action, and more specifically, by configuring a pump using waste tires, wear resistance and corrosion resistance are improved. Related to a pump using waste tires that improves the performance and improves the performance by making it easier to manufacture and install the pump, and also makes it easier to maintain and manage the pump by simple replacement of parts, etc. Is.

  In general, a pump is a machine that transports fluid such as liquid or gas through a pipe by pressure action, or pumps fluid contained in a low-pressure container into a high-pressure container through a pipe. It is widely used not only for water but also for transporting petroleum, various chemicals, and special fluids such as pulp, viscose and sludge.

  The basic performance of the pump is indicated by a head indicating the height at which the pump can push up the liquid and a flow rate indicating the bulk of the liquid that can be delivered per unit time. Therefore, there are various types of pumps depending on the head / flow rate and the type of liquid to be handled.

  The pumps are classified according to the structure: reciprocating pump, rotary rotary pump, centrifugal pump, axial flow pump, friction pump and other pumps. Also, depending on the application, it can be classified as a water supply pump, a pump for deep wells, etc. A machine that draws air and other gases in a container to create a vacuum is called a vacuum pump.

  That is, the reciprocating pump is a pump in which a piston or a plunger reciprocates in a cylinder, and a pumping valve and a suction valve are alternately opened and closed to pump water while sucking and feeding liquid. What consists of one cylinder and one set of valves is called a single-acting pump, and a well pump for home use is an example. In this type, pulsation of water occurs, so a double-acting pump, a differential pump or several single-acting pumps are used in combination to average the amount of water delivered. The reciprocating pump is suitable for high heads and small flow rates, and is used for hydraulic machines and boilers.

  In the rotary pump, the piston acting part of the pump rotates. That is, the rotor acts as a piston. There are vane pumps with blades on which the rotor slides without a delivery valve and suction valve, a gear pump with two meshing gears, and a screw pump. Although there are less fluctuations in the delivery rate compared to reciprocating pumps, it is widely used for water, gasoline, lubricating oil, paint, asphalt, etc., and is also widely used as a hydraulic pump for automatic control.

  The centrifugal pump is a pump having a spiral passage outside the rotating impeller (impeller), and is most often used in the industrial field. The water entering the center increases through the rotating impeller and flows out to the outer periphery, and reaches the pump outlet through the spiral passage. There are two types, the turbine pump in which the water coming out of the impeller passes between the guide vanes and goes out to the casing, and the volute pump without the guide vanes.

  In particular, when the head is high, a multi-stage system is used that guides water from the first stage guide vanes to the second stage entrance. Centrifugal pumps are most commonly used in various industrial fields such as drainage, water and sewage, mining, and chemical industries. The centrifugal pump blades that are particularly resistant to wear and corrosion are suitable for mud, sewage, pulp mixture, pebbles, coal, etc.

  An axial flow pump is used when the pumping amount is low and the pumping amount is large, and the propeller type impeller rotates to feed water in the axial direction. In some cases, the installation angle of the impeller can be changed during operation so that the efficiency does not decrease even if the amount of pumped water changes.

  In addition, the friction pump is a pump in which the pump acts by a rotating body with a radial groove on the outer periphery of the disk, and utilizes the property that the fluid moves in close contact with the solid due to viscosity. . An example is a shallow well pump, which is used as a small household well pump.

  In addition to the above, a jet pump that ejects high-pressure water or steam from the nozzle to draw water together, a pumping pipe is placed in the liquid, and compressed air is blown from the lower end to create a mixture of liquid and air. There are bubble pumps and the like that pump water by reducing the average specific gravity.

  On the other hand, the material of the conventional pump as described above usually has the disadvantage that it is weak in wear resistance and corrosion resistance because it uses cast iron material made of casting, and it is heavy when used for high pressure. There are disadvantages that it is expensive and construction is not easy. In addition, since it is not easy to replace worn parts, the cost for maintenance and repair of the pump is high, and the work efficiency during replacement of parts is low.

  In addition, a water hammer effect (also called a water hammer), which is a pressure wave phenomenon, is generated by abruptly changing the motion state of water in the pipe. Specifically, when the valve in the downstream part of the pipe line where the liquid is full is suddenly closed, the flow of the liquid flowing in the pipe suddenly decelerates, and the kinetic energy possessed by the liquid becomes the pressure energy. The elastic wave reciprocates inside the pipe, and a water hammer effect is caused.

  The same phenomenon occurs when a closed valve is suddenly opened. If the liquid is completely incompressible and the tube wall is rigid, the pressure when the valve is momentarily closed becomes infinite. However, in reality, the liquid has a slight compressibility and the pipe wall is elastic. Therefore, when the valve is closed, the pipe wall expands slightly and the liquid is compressed, and the pressure rises. There are limits.

  For example, when the demand for electricity suddenly decreases or when a power failure occurs suddenly due to an accident, the valve at the turbine entrance of the power plant is closed and a water hammer effect is generated in the iron pipe. There is a possibility that a dangerous situation will be invited. For this reason, there has been a problem that the water hammer phenomenon must be prevented in advance by controlling the valve closing speed or installing a safety valve by accurate calculation.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and it is easy to manufacture and install the pump, has durability, is easy to maintain and repair, and uses a separate device. This is to provide a pump that uses waste tires that have improved performance so that the occurrence of water hammer phenomenon can be prevented, and that the pump can be prevented from bursting due to cold.

  In order to achieve the above object, according to the present invention, there is provided a pump comprising a housing in which an impeller is installed and a casing body in which a suction part and a discharge part are installed, the casing body having an original shape. The first hole that is constituted by the retained waste tire and is located on one side of the waste tire is provided with a suction portion that functions as a suction port of the casing body, and is located on the opposite side to the first hole of the waste tire. A housing is installed in the second hole so that the impeller is disposed inside the casing body, and a discharge portion functioning as a discharge port of the casing body has a predetermined portion of the waste tire. There is provided a pump using a waste tire characterized by being installed through.

  On the impeller blades, auxiliary blades made of waste tires may be installed on each surface of the blades positioned in the direction of rotation in a replaceable manner.

  According to the present invention, the casing body is made of waste tires, and auxiliary blades using waste tires are also installed on the impeller blades, thereby obtaining the productivity and cost saving effect of the pump including the impeller. Can do. In addition, wear resistance and corrosion resistance are improved. In addition, since parts can be easily replaced, the cost required for maintenance and repair of the pump can be reduced. In addition, the water hammer phenomenon can be prevented by the elasticity of the casing body, and the rupture of the pump due to cold can also be prevented, thereby improving the performance of the pump.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, preferred embodiments capable of effectively achieving the features of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional view of an essential part illustrating the configuration of a pump according to the present invention. FIGS. 2a and 2b are a perspective view and a front view showing an impeller according to an embodiment of the present invention.

  In the present invention, a pump comprising a housing in which an impeller is installed and a casing main body in which a suction part and a discharge part are installed is used as a casing main body 110 in the form of a waste tire. The suction part 130 is connected to the hole located in one side of the main body 110 so as to be sealed, and the housing 120 is connected to the hole located in the other side of the casing main body 110 so as to be sealed. The impeller 150 is disposed inside the casing main body 110, and is fixed to the upper surface of the casing main body 110 so as to pass through the discharge portion 140, and the blade 151 of the impeller 150 uses waste tires in the traveling direction surface. The auxiliary blade 152 is installed.

  In the drawings, reference numerals 210 and 220 denote replacement liners installed on the inner surfaces of the suction portion 130 and the housing 120, respectively. The liners 210 and 220 are used for facilitating replacement of waste tires constituting the casing body 110.

  The suction part 130 is fastened to the liner 210 by the fastening member 170 so that the suction part 130 does not hang down.

  In the present invention, the casing body 110 is made of a waste tire, which is an industrial waste, and the shape of the tire is used as it is. The housing 120 and the suction portion 130 are fixed to both holes of the tire, Is characterized in that the discharge unit 140 is fixed.

  That is, the shape of the waste tire is used as it is as the casing body 110, the suction portion 130 is firmly fixed in one hole of the casing body 110 so as to be sealed, and the other hole of the casing body 110 is fixed. The housing 120 to which the impeller 150 is connected is firmly fixed so as to be sealed. At this time, the impeller 150 is disposed inside the casing body 110.

  Therefore, according to the present invention, the use of an elastic waste tire as the casing main body 110 improves the corrosion resistance and wear resistance compared to existing pumps. Further, even if the casing body 110 is increased in order to increase the capacity of the pump, the waste tire is standardized according to size, so that the casing body 110 can be manufactured more easily. Furthermore, even if the size of the casing main body 110 is increased, there is an advantage that construction and transportation can be easily performed without being heavy and expensive.

  In addition, when an abnormality occurs in the casing main body 110, it is possible to easily replace a waste tire, and therefore, it is possible to reduce costs necessary for repairing and maintaining parts. Further, a separate dust-proof and vibration-absorbing rubber pipe is not required for the discharge unit 140. Moreover, piping can be made easy by the elasticity of the casing main body 110, and in particular, the water hammer prevention effect can be expected by the elasticity of the casing main body 110 itself.

  Along with this, there is an advantage that by effectively recycling the waste tire which is industrial waste, there is an environment-friendly effect, and it is possible to prevent rupture of the casing body 110 due to severe cold.

  2A and 2B are a perspective view and a front view showing an impeller used in a pump according to an embodiment of the present invention. By installing the auxiliary blade 152 using the waste tire in a replaceable state on the surface located in the rotating direction of the blade 151 of the impeller 150, the blade 151 is not directly worn by the rotation of the impeller 150 and is attached to the blade 151. The auxiliary blade 152 is made to wear. Since the auxiliary blades 152 are composed of waste tires, they do not wear easily, but they can be replaced easily even if they are worn, so that the life of the impeller 150 can be improved, and as a result, the overall durability of the pump. The effect of improving the performance can be obtained.

  3 and 4 show another embodiment of the present invention, in which thick beads 111a and 111b are provided along the edges of the holes formed on both surfaces of the casing body 110. FIG. The housing 120 and the suction part 130 are connected to both holes of the casing body 110, respectively. “L” -shaped flange portions 121 and 131 are formed on the housing 120 and the suction portion 130 so that the beads 111a and 111b are locked.

  Each of the two “U” -shaped connectors 160 is attached so as to cover the casing body 110 in the radial direction. Specifically, one end of the connector 160 is fastened to the suction portion 130 and the other end is fastened to the housing 120 so that the suction portion 130 is supported by the connector 160 and does not hang down.

  According to the other embodiment, when the suction part 130 and the housing 120 are fastened to both holes of the casing main body 110, the beads 111 a and 111 b provided at the peripheral edges of both holes are formed between the housing 120 and the suction part 130. It is supported by “L” -shaped flange portions 121 and 131 formed on each outer surface, and both ends of the “U” -shaped connector 160 are fastened to the suction portion 130 and the housing 120, respectively. Therefore, the fastening state of the casing body 110, the suction part 130, and the housing 120 is very ideally maintained.

  In addition, the “U” -shaped connector 160 maintains a constant distance between the housing 120 and the suction portion 130 that are in contact with the beads 111a and 111b, respectively, so that the beads 111a and 111b of the casing body 110 can be The spacing between them is always kept constant.

  As described above, according to the present invention, the pump is configured by using the waste tire which is an industrial waste that cannot be easily recycled, and the casing body is configured by the waste tire and is disposed on the impeller blades. By replacing the tires, the wear resistance and corrosion resistance are improved. Even if the size of the pump is increased, it is easy to manufacture and install, and the cost can be reduced. This is a useful invention that can be easily maintained and repaired at a fixed price, and has the effects of preventing water hammer and preventing the pump from bursting due to cold.

FIG. 1 is a cross-sectional view illustrating a pump manufactured using waste tires according to the present invention. FIG. 2A is a perspective view showing an impeller of a pump according to an embodiment of the present invention. FIG. 2 b is a front view showing the impeller of the pump according to the embodiment of the present invention. FIG. 3 is a perspective view showing another embodiment of the present invention. 4 is a cross-sectional view of FIG.

Explanation of symbols

110 Casing body 120 Housing 130 Suction part 140 Discharge part 150 Impeller 151 Blades 152 Auxiliary blades

Claims (5)

A pump comprising a housing in which an impeller is installed and a casing body in which a suction part and a discharge part are installed:
The casing body is composed of waste tires that retain their original shape,
The first hole located in one of the waste tires is provided with a suction portion that functions as a suction port for the casing body,
In the second hole located on the opposite side to the first hole of the waste tire, a housing is installed such that an impeller is disposed inside the casing body,
A pump using a waste tire, wherein a discharge portion functioning as a discharge port of the casing body is installed in a predetermined portion of the waste tire.   The pump using the waste tire according to claim 1, wherein an auxiliary blade made of a waste tire is detachably installed on the blade of the impeller.   The liner for facilitating replacement of the waste tire of the casing main body is respectively installed on the inner surface of the housing and the suction portion installed on the casing main body made of the waste tire. A pump using the waste tire described in 1.   Each of the two “U” -shaped connectors is attached so as to cover the casing body in the radial direction, one end of the connector is fastened to the housing, and the other end is fastened to the suction portion. The pump using the waste tire according to claim 1. The pump using the waste tire according to claim 1, wherein each of the housing and the suction portion is fastened to a liner by a fastening member.

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