JPH0227200A - Blowing device for circulating cooling water - Google Patents

Abstract

PURPOSE:To hold constantly the conductivity of the water in a water tank within the prescribed value, by driving the water supply and the air supply into a syphon pipe with the prescribed pattern. CONSTITUTION:A blowing device 40 has a water supply means which consists of an inverted U-shaped syphon pipe 42 and a small submersible pump 44 and an air supply means which consists of an air leading-in pipe 46 and a small electromagnet valve 48 for air. The submersible pump 44 and the electromagnet valve 48 are fed from an accumulator with a solar battery, and are while driven with the prescribed driving pattern through a driving control unit 50 controlled to actuate by a transmitting electric signal from a conductivity detecting unit 14.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is arranged in an aquarium such as a cooling tower, and is capable of automatically blowing water inside the aquarium that has been circulated and cooled to have a high conductivity to the outside of the aquarium. The present invention relates to a blowing device that maintains the conductivity of water in an aquarium within a predetermined value at all times.

[Conventional technology]

In a water tank for circulating cooling water in a cooling tower, etc., in order to prevent the conductivity of the water from increasing beyond a predetermined value, the water in the tank is blown out and clean water is replenished and covered as necessary. Usually, so-called water replacement is performed.

That is, for example, in the cooling tower 10 shown in FIG. 3, the water tank 12 is generally equipped with a water conductivity detector 14.
A blowing device 22 is provided, which includes a solenoid valve 18 that opens and closes the valve 1-16, and a drive controller 20 that drives the solenoid valve 18 to open and close, and is connected to a power source via a switch box 24. In such a configuration, the conductivity detector 1
4 transmits a predetermined initial electric signal to the drive controller 20 when the conductivity of the water in the water tank 12 reaches a preset upper limit value (for example, 400IIs), and transmits it to the drive controller 20. 20 drives the electric vA valve 1B every inch of the way to blow the water in the tank 12 out of the tank through the blow pipe 16. During this blowing, the water level control device (not shown) acts to blow the water out of the tank. As clean water is replenished from the make-up water pipe 26, the conductivity of the water in the water tank 12 decreases, but eventually the conductivity reaches a preset lower limit value (for example, 3
00/ff>, the conductivity detector 14 issues a predetermined final electrical signal, which causes the solenoid valve 18 to be closed via the drive controller 20. Furthermore, the supply of water from the makeup water pipe 26 is also stopped by the action of the water level control device. In this way, the water quality within the cooling tower 10 is maintained within a predetermined range, and due to the high conductivity of the circulating cooling water, the cooling water piping 28' and the heat exchanger (as shown in FIG. 1) are maintained.
Environmental pollution resulting from water contamination, such as corrosion of water and a decrease in heat exchange efficiency due to contamination thereof, is prevented. In the figure, reference numeral 30 indicates an overflow pipe.

[The problem that the invention is about to solve]

In this way, in the cooling tower device of the blowing device I, corrosion and staining of the device and contamination of the water in the water tank are prevented, and a predetermined performance is automatically maintained.

However, when adding this type of blowing equipment to a cooling tower equipment installed in FI1, not only is the construction required for installation complicated, but the components and parts are expensive. 1=.

However, as mentioned above, the blowing device includes a conductivity detector, vacuum piping, and a solenoid valve.

It consists of a drive controller, a switch box, a power supply, etc. Among these, blow piping and solenoid valves in particular require a larger diameter than make-up water piping, etc., and are expensive in themselves. At the same time, several parts of the cooling tower device require welding work, which tends to make the construction work complicated and difficult. Furthermore, if there is not enough room in the power supply equipment for the cooling tower equipment, it will be necessary to add additional equipment to the power supply equipment, which will require additional electrical work. If the blowing device is already installed, the price of the blowing device is quite high when the installation cost is included.

Therefore, an object of the present invention is to easily add H9tF to an existing cooling tower device. Our goal is to provide an inexpensive blowing device that can

[Failure to solve the problem]

In order to achieve the above object, the circulation cooling water blowing device according to the present invention is a reverse (one-shaped siphon) whose one end is immersed in water in the tank and blows the water in the tank out of the tank. a pipe, a water supply means for supplying water into the siphon pipe through the one end of the siphon pipe to generate a siphon phenomenon, and an air supply means for supplying air into the top of the siphon pipe to eliminate the siphon phenomenon. and a drive control means for driving the water supply means and the air supply means in a predetermined drive pattern, and a power source for the drive control means.

In this case, the water supply means consists of a submersible pump submerged in the water in the water tank, and the air supply means consists of a solenoid valve that opens and closes the air introduction pipe connected to the top of the siphon pipe. t, the water supply means is driven for a predetermined period of time by an initial electric signal to generate a neuphon phenomenon, and the air supply means is driven by a final electric signal to eliminate the siphon phenomenon. Advantageously, the control action is effected by an electrical signal via a conductivity detector for detecting the conductivity of the water or a timer which operates on a chronological basis. In addition, the power source is composed of a storage battery with a solar cell, a storage battery, or a dry battery.

[Effect]

A blowing device consists of a siphon pipe, a water supply means, an air supply means, a drive control means, and a power source. Among these, the water supply means, which is the main component, is a small submersible pump, and the air supply means The means is a small solenoid valve for air.
Since the power source is a storage battery with a solar cell, a storage battery, or a dry battery, the cost of the entire device is relatively low. Moreover, when installing the system, there is no need for welding the water tank or additional work around the power supply, which were conventionally required, so the system can be installed simply and easily.

(Embodiment) Next, an embodiment of the circulating cooling water blowing device according to the present invention will be described in detail below with reference to the accompanying drawings. For convenience of explanation, the same reference numerals are given to the same components as the conventional structure shown in FIG. 3, and detailed explanation thereof will be omitted.

In FIG. 1, the blowing device/IO according to the present invention includes an inverted U-shaped siphon pipe 42 and a small submersible pump 4/
A water supply means consisting of I, an air supply means consisting of an air introduction pipe 46 and a small air solenoid valve 48, and a drive controller 50.
as well as a conductivity detector 14 and a small-capacity solar cell equipped with an N
It is composed of a battery 52.

As shown in the enlarged view in FIG. It is connected to the discharge port of the submersible pump/I/I, and the other open end is inserted into the overflow piping 30 provided in the water tank 12. ) is supported by the overflow piping 30. Furthermore, the submersible pump 44
Appropriate support means (
(not shown) on the bottom plate of the water tank 12. One end of the air introduction pipe 46 constituting the air supply means is connected to the top of the siphon pipe 42, and a solenoid valve 48 is attached to the other end. The submersible pump 44 and the solenoid valve 48 are powered by a large storage battery 52 and controlled by a drive controller 50 that is controlled by an electric signal sent from the conductivity detector 14. Configured to be driven by a pattern.

Further, the conductivity detection circuit is intermittently supplied with power via a timer for the purpose of power saving, but the drive controller 50 is configured to control the conductivity of the submersible pump 44 and electromagnetic valve 48 circuits. It is configured such that power is continuously supplied only during execution of a predetermined drive pattern in which a control action is started in response to an initial electrical signal from the detector 14 and is terminated in response to a final electrical signal. In the figure, reference numerals 26 and 28 indicate makeup water piping and cooling water piping, respectively. Further, as a power source, a dry battery may be used instead of the solar battery-equipped storage battery 52.

In such a configuration, when the conductivity of the water in the water tank 12 increases and reaches a preset 1-limit set value (for example, /100 μs), an initial electrical signal is output from the conductivity detector 14. The drive controller 50 starts a control action based on a preset drive pattern, and controls the solenoid valve/
18 is blocked, the submersible pump is turned off for a predetermined time #,
However, as a result, water fills inside the water tank 12 and flows out from the open end, causing a noise phenomenon. Water is supplied by submersible pump 44 and siphon pipe 4
2, continue the pipe L1 into the pipe 30 through the overflow pipe 30. On the other hand, since clean outside water is replenished via the makeup water piping 26 during this blowing, the conductivity of the water in the water tank 12 decreases and the conductivity reaches a preset lower limit value (e.g. 300 tts), a terminal electrical signal is transmitted from the conductivity detector 14, and the solenoid valve 48 is opened via the drive controller 50. As a result, the siphon pipe 42
Air is supplied into the top of the tank 12, the siphon phenomenon disappears, and the water in the tank 12 stops blowing. Note that it is best to find an economical diameter of a submersible pump that is compatible with the diameter of the siphon pipe through experiments.

As can be understood from the above, the technology that utilizes the siphon phenomenon caused by the siphon pipe is an extremely effective means of reducing power consumption, and this makes it possible to reduce the capacity of storage batteries with solar cells. Become. It is also preferable to select a drive controller that consumes less power.

As described above, the blowing device of the present invention does not require welding work on the water tank or additional work around the power supply, unlike the installation of conventional blowing devices, and therefore can be installed simply and easily. . Furthermore, the submersible pump and electromagnetic valve, which are the main components of the blowing device, can be small, commonly available products, and the solar cells and storage batteries can also be small-capacity, commonly available products, so that the entire device can be constructed at low cost.

Although the present invention has been described in terms of preferred embodiments, the present invention is capable of many design changes without departing from its spirit. For example, the siphon pipe may be configured to blow directly to the outside of the aquarium. Alternatively, a timer running on the date and time can be used in place of the conductivity detector.
- You can also.

(Effects of the Invention) The circulating cooling water blowing device according to the present invention as described above includes a siphon pipe, a small submersible pump, a small solenoid valve for air, and a drive controller. It also consists of a conductivity detector or timer, and a small-capacity storage battery with a solar cell or a storage battery.Moreover, even if the cooling tower device is already installed, it is necessary to install blow piping by welding to the water tank, and also to install the power supply. Since there is no need for additional construction work around the blowing device, the blowing device can be installed at a low cost and can be done simply and easily.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the circulating cooling water blowing device according to the present invention installed in a cooling tower, Fig. 2 is an enlarged sectional view of section A in Fig. 1, and Fig. 3 is a conventional FIG. 2 is a front view showing a blowing device of a cooling tower. 10...Cooling tower 12...Aquarium 14...
・Conductivity detector 26...Makeup water piping 28...
Cooling water pipe 30... Overflow pipe 40... Blow device 42... Siphon pipe 44.
...Submersible pump 44a...Discharge piping 46...
・Air introduction pipe 48...Solenoid valve 50...Drive controller 52...Storage battery with solar battery

Claims (8)

[Claims] (1) An inverted U-shaped siphon pipe whose one end is immersed in water in the aquarium and blows the water in the aquarium out of the aquarium;
water supply means for supplying water into the siphon pipe through the one end of the siphon pipe to cause a siphon phenomenon; and air supply means for supplying air into the top of the siphon pipe to eliminate the siphon phenomenon; A circulating cooling water blowing device comprising: a drive control means for driving the water supply means and the air supply means in a predetermined drive pattern; and a power source for the drive control means. (2) The circulating cooling water blowing device according to claim 1, wherein the water supply means is a submersible pump submerged in water in the water tank. (3) The circulating cooling water blowing device according to claim 1, wherein the air supply means is a solenoid valve that opens and closes an air introduction pipe communicating with the top of the siphon pipe. (4) The driving pattern is configured such that the water supply means is driven for a predetermined period of time by the initial electric signal to generate a siphon phenomenon, and the air supply means is driven by the final electric signal to eliminate the siphon phenomenon. 1. The circulating cooling water blowing device according to 1. (5) The circulating cooling water blowing device according to claim 1 or 4, wherein the drive control means is controlled by an electric signal transmitted via a conductivity detector that detects the conductivity of water in the water tank. (6) Claim 1 or 4, wherein the drive control means is controlled by an electric signal via a timer that operates according to date and time.
The circulating cooling water blowing device described. (7) The circulating cooling water blowing device according to claim 1, wherein the power source is a storage battery with a solar battery. (8) The circulating cooling water blowing device according to claim 1, wherein the power source is a storage battery or a dry battery.