JPH0953731A - Distributor of flow rate at arbitrary rate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a distributor capable of distributing surely fluid at an arbitrary rate even with a simple constitution without being affected by increasing and decreasing variation of inflow rate. SOLUTION: A damper 7 is mounted to open and close an opening part 6 of a distribution tank 5 for fluid. An opening and closing operation shaft 2 with a handle is rotated to shift a damper operating rod 8 and deviate the damper 7 properly for adjusting the width of the opening part 6. A plurality of such flow rate adjusting devices are used to be installed in fluid distributing tanks at the same level.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to water, tap water, sewage,
The present invention relates to a device for distributing a fluid in a chemical plant facility or the like at an arbitrarily set ratio regardless of changes in the flow rate.

[0002]

2. Description of the Related Art For example, in a wastewater treatment facility, inflowing wastewater is distributed at a ratio of 3: 2 to two systems of treatment facilities by adjusting an outflow movable weir installed in a distribution tank.

[0003]

However, in such a case, although it is possible to temporarily achieve the target ratio, the ratio of 3: 2 quickly collapses when the flow rate changes. There is.

Further, although it is possible to equally distribute by the outflow movable weir of the same type, in order to distribute at an arbitrary ratio, a weir type flow meter, a device for measuring the flow rate such as an electromagnetic flow meter, an electric valve, It is necessary to use a device that controls the flow rate of the electric movable weir and the like and a device that calculates the control amount based on the measured flow rate, and to use them in combination. Also, the use of these devices requires civil engineering work, mechanical equipment work, electrical equipment work, and the like.

Further, the sensor mounting of the flowmeter has its own conditions depending on the type, and it affects the civil engineering work and the plumbing work, so it is necessary to select it when designing the equipment. Furthermore, advanced maintenance work is required for each of the flow meter, control device, and arithmetic device.

The present invention has been made in view of the above points, and does not require a large number of expensive and expensive installation and maintenance devices such as a flow meter, a flow control device, and a computing device, and has a simple structure. However, it is another object of the present invention to provide a device capable of surely distributing a fluid at an arbitrary ratio without being affected by an increase / decrease in an inflow flow rate.

[0007]

The gist of the present invention resides in that the opening / closing operation shaft with a handle and the opening in the fluid distribution tank are openably and closably attached to adjust the size of the opening. Which is interposed between the damper operating rod connected to the damper, the handle opening / closing operating shaft and the damper operating rod, and moves the damper operating rod in the opening / closing direction of the damper through the rotation of the handle operating opening / closing operating shaft. A flow rate adjusting device is configured with an appropriate gear mechanism as described above, and a plurality of flow rate adjusting devices of the same standard are installed at the same level in a fluid distribution tank. is there.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. 1 is a front view of the flow rate adjusting device, FIG. 2 is an enlarged view showing a part of the portion A in FIG. 1, FIG. 3 is an enlarged plan view of a gear mechanism portion, and FIG. 4 is an explanatory view of the principle of the present invention. is there.

In the figure, reference numeral 1 is a flow rate adjusting device, which comprises an opening / closing operation shaft with a handle, a damper, a damper operating rod, and a gear mechanism, which will be described later.

Reference numeral 2 is an opening / closing operation shaft with a handle, and 2a is a handle provided on the upper end portion thereof. Reference numeral 3 denotes a gear box, into which the lower end of the opening / closing operation shaft 2 with a handle is inserted and which is rotatably supported. Reference numeral 4 is a pinion provided at the lower end of the opening / closing operation shaft 2 with the handle.

Reference numeral 5 is a fluid distribution tank, and 6 is an opening of the distribution tank 5. Reference numeral 7 denotes a damper which is attached to the opening 6 so as to be openable and closable, and is slidable in the left-right direction in the drawing by a damper operating rod described later. The damper 7 is for adjusting the width of the opening 6, and is appropriately adjusted by shifting from the completely closed state to the fully opened state.

Reference numeral 8 denotes a damper operating rod, one end side of which is connected to the damper 7. 9 is the damper operating rod 8
Is a rack provided on the other end side of which the pinion 4 meshes.

Then, when the opening / closing operation shaft 2 with a handle is rotated, the pinion provided on it rotates, and the rack 9 moves left and right in the figure. Along with this, the damper 7 is slid in the left-right direction in the drawing via the damper operating rod 8 to adjust the size of the opening 6 in the distribution tank 5.

Further, according to the present invention, a plurality of flow rate adjusting devices 1 of the same standard are used in a set and installed at the same level in a fluid distribution tank. Then, the respective dampers are appropriately shifted to change the width of each opening, and the dampers are distributed at an arbitrary ratio.

The principle of the present invention will be described with reference to FIG. Figure 4 is an example of a weir,
10 and 11 are weirs. The width W of the opening of the weir 10 is twice the width W ′ of the opening of the weir 11. The heads of these weirs 10 and 11 are h. In this state, the flow rate Q1 of the weir 10 is double the flow rate Q2 of the weir 11. That is, Q: flow rate, k: coefficient, b: opening width, h: head of water, and the flow rate is proportional to the width of the opening as shown by the square weir formula Q = kbh ^3/2 . By utilizing this effect and setting the widths of both openings to an arbitrary ratio, the flow rate can be set to an arbitrary ratio regardless of the increase / decrease.

[0016]

Since the present invention has the above-described structure and operation, when distributing a fluid, the size of the opening of the distribution tank for each fluid is adjusted by operating the damper of each flow rate adjusting device. , The fluid can be distributed in any ratio regardless of the increase / decrease in the inflow rate.

Further, since it has a simple structure and does not require expensive equipment such as a flow meter, a flow control device, and a calculation device, the cost is low.

[Brief description of drawings]

FIG. 1 is a front view of a flow rate adjusting device.

FIG. 2 is an enlarged view showing a part A of FIG. 1 with a part cut away.

FIG. 3 is an enlarged plan view of a gear mechanism portion.

FIG. 4 is a diagram illustrating the principle of the present invention.

[Explanation of symbols]

 1 Flow rate adjusting device 2 Open / close operation shaft with handle 3 Gear box 4 Pinion 5 Fluid distribution tank 6 Distribution tank opening 7 Damper 8 Damper operating rod 9 Rack

Claims (2)

[Claims] 1. An opening / closing operation shaft with a handle, a damper that is openably and closably attached to an opening in a fluid distribution tank, adjusts the size of the opening, a damper operating rod connected to the damper, and the handle. The flow rate adjusting device is configured with an appropriate gear mechanism that is interposed between the opening / closing operation shaft and the damper operating rod, and moves the damper operating rod in the opening / closing direction of the damper through the rotation of the opening / closing operating shaft with a handle. An arbitrary flow rate distribution device characterized in that a plurality of standard flow rate adjustment devices are installed in the fluid distribution tank at the same level. 2. The arbitrary flow rate distribution device according to claim 1, wherein the gear mechanism is a gear mechanism including a pinion provided on the opening / closing operation shaft with a handle and a rack provided on the damper operating rod.