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Water supply device and water level controlling means

A water level control and water level technology, which is applied in pump control, pump device, liquid variable capacity machinery, etc., can solve the problems of high cost, consumption, and great effort, and achieve the effect of realizing cost.

Inactive Publication Date: 2011-06-01
HITACHI IND EQUIP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, it is necessary to control the pump corresponding to the number of electrodes every time the pump is installed, and there is a problem that it takes a lot of time and effort.
In addition, in this way, since the pump control panel must be prepared according to the number of electrodes, there is also a problem of increased cost.
Or, although it is also conceivable not to use all of them even if there are many electrodes, but to use only three of them for pump control, the problem is that if this is the case, compared to the use of multiple electrodes to achieve The higher the accuracy of the control, the lower the accuracy of the
[0006] (2) There are various forms in tank water level detection (No1, No2), display and alarm (low water level, full water level), and various functions (inflow valve opening and closing, pump operation, stop), which cannot be standardized, resulting in increased cost The main reason

Method used

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  • Water supply device and water level controlling means
  • Water supply device and water level controlling means
  • Water supply device and water level controlling means

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Next, Embodiment 1 of the present invention will be described using the drawings.

[0083] First, use figure 1 , figure 2 , image 3 The water level control of the water supply and drainage pump system will be described. Label 4 is a double tank type water tank and is composed of a first water tank 4-1 and a second water tank 4-2, and 2-1 and 2-2 are respectively used to put tap water into the first water tank 4-1 and the second water tank The first and second inflow valves in 4-2 are generally automatic valves. 1-1 and 1-2 are gate valves for maintaining these first and second automatic valves, and 1-3 is a gate valve for communicating the first water tank and the second water tank with the communication pipe 1-8. And it has water level detection means 3-1, 3-2 which detects the water level of these 1st water tank and 2nd water tank.

[0084] Although this will be described in detail later, according to the detected water level, for example, full water level, low...

Embodiment 2

[0138] Next, Embodiment 2 of the present invention will be described using the drawings.

[0139] At once Figure 1 ~ Figure 3 Since it is the same as that of Embodiment 1, its description is omitted. As mentioned above, the water level control system of the water supply and drainage pump system of this embodiment is used to solve the following problems.

[0140] (1) in figure 1 ( image 3 ) In the case of E14 (or E24), the low water level of the water tank (meaning that the water volume is reduced) is the same as the water level at which the pump is stopped and the water is cut off, and preventive treatment such as maintenance cannot be performed before the water is cut off. In addition, in E13 (or E23), there is also the possibility that the inflow valve opens and the pump starts at the same time, and the impact on the power supply must also be considered.

[0141] (2) There are various forms in the tank water level detection (NO.1, NO.2), display and alarm (low water le...

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Abstract

The invention relates to a water supply device and a water level controlling means.The invention aiming to solve the problem in the prior art provides a cheap water supply device independent of the number of the electrodes.The water supply device equipped with a pump for supplying water in a water tank to a need side and a water level detection mechanism for detecting the water level in the water tank comprises a storage part, a determination mechanism and a pump controlling mechanism. The storage part has a plurality of water level controlling modes corresponding to the water level valve detected by the water level detection mechanism. The determination mechanism determines the water level controlling mode of the water stored in the storage part. The pump is rotated to be driven by the pump controlling mechanism based on the water level controlling mode determined by the determination mechanism and the water level valve detected by the water level detection mechanism.

Description

technical field [0001] The invention relates to water level control of a water supply device and a water level control device. Background technique [0002] As the prior art of a water level control system that detects the water level of the water source on the suction side of the pump and operates the water supply and drainage pump system of the pump based on the water level, there are the liquid level control device and the A water level detection device, a liquid supply control device, and the like disclosed in Patent Document 2 (Japanese Patent Application Laid-Open No. 4-128908). In addition, in Patent Document 2, the state where the water level is E11 or E21 or higher is treated as 4 (the state in which four electrodes are conducted), and the state in which the water level is E12 or E22 is regarded as 3 (the state in which three electrodes are conducted). ) is processed, the state where the water level is above E13 or E23 is treated as 2 (the state where two electrode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B23/02F04B49/10
Inventor 佐藤幸一
Owner HITACHI IND EQUIP SYST CO LTD