JPH07718Y2 - Cooling water circulation pump device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cooling water circulation pump device such as a water-cooled welding torch.

(Prior Art and Problem to be Solved) Conventionally, the cooling water circulation pump device generally has a tank in a lower portion and a non-self-priming pump in an upper portion, and opens an upper portion of a casing containing the tank and the pump. Then, there are those that are driven by priming the pump, or those that are self-priming pumps.

However, in the former case, when driving the pump,
It is troublesome that you have to open the openings one by one to prime the water.

In the latter, the pump is expensive and
Maintenance was troublesome.

Moreover, in both cases, when the circulating water in the tank is to be replaced after long-term use, the cooling water circulation pump device itself must be moved to a predetermined place for draining, or a hose must be connected to the tank. Replacing circulating water is troublesome.

It is an object of the present invention to provide a cooling water circulation pump device that can solve the above problems with a simple configuration.

(Means for Solving the Problems) In order to achieve the above object, the present invention comprises a pump casing containing a non-self-priming pump, and a cartridge tank mounted above the pump. In the water supply and drainage section, a water supply section detachably attached to the water supply pipe communicating with the suction section of the pump below the cooling water level in the tank, and the lower end is located above the cooling water level in the tank, A condensate part detachably attached to the condensate pipe of the pump is provided.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.

A cooling water circulation pump device according to the present invention generally comprises a pump casing 1 having a non-self-priming pump 2 built therein, and a rectangular parallelepiped cartridge tank 10 mounted on a mounting portion 8 provided above the pump casing 1. Consists of.

A non-self-priming pump 2 and a radiator 3 are built in the pump casing 1, and a discharge pipe 4 communicating with a discharge portion of the pump 2 and a suction pipe communicating with a suction portion are provided above the pump casing 1. 5 and the condensate pipe 6 from the radiator 3 and the supply pipe 7 to the radiator 3 are also provided in the pump casing 1.

On the other hand, the cartridge tank 10 has a water supply / drainage section 11,
The suction pipe 5 of the pump and the condensate pipe 6 from the radiator 3
A water supply part 12 and a condensate part 13 which are detachable are respectively provided in and.

When a predetermined amount of circulating water W is supplied from the water supply / drainage unit 11 to the cartridge tank 10, the cartridge tank 10
In either the vertical or horizontal direction, the suction pipe 12 of the water supply unit 12
The lower end of a is in the circulating water W, and the discharge pipe 1 of the condensate part 13
The lower end of 3a is located in the space H above the circulating water W when the cartridge tank 10 is in the horizontal direction. It should be noted that the cartridge tank 10 is provided with a window 14 so that when the cartridge tank 10 is placed horizontally, the jetting state of circulating water can be visually observed from the lower end of the discharge pipe 13a. In addition, in the figure, 15 is an on-off valve, and 16 is a connecting fitting.

Next, a method of using the cooling water circulation pump device having the above configuration will be described.

Now, it is assumed that the discharge pipe 4 of the pump casing 1 and the supply pipe 7 of the radiator 3 are connected to the supply and discharge parts of the cooling welding torch T, respectively.

First, a predetermined amount of circulating water W is supplied into the cartridge tank 10 via a cap 11 which is a water supply / drainage unit.

After that, the water supply section 12 and the condensing section of the cartridge tank 10
13 are connected to the suction pipe 5 and the condensate pipe 6 by connecting fittings 16, and are vertically mounted on the mounting portion 8 of the pump casing 1 (see FIG. 1).

In this case, since there is a large drop between the suction part of the pump 2 and the water supply part 12 of the cartridge tank 10, the cartridge tank 10
A large amount of the circulating water W flows into the pump suction portion, and it is as if it had been priming. Therefore, the pump 2 and the radiator section 3 may be driven in this state.

Then, when the pump 2 is started in this way, the cartridge tank 10 is placed horizontally (see FIG. 2). In this state, since the tip of the suction pipe 12a is in the circulating water W, it is connected to supply the circulating water W to the pump 2.

The circulating water that has cooled the water-cooled welding torch T is cooled by the radiator 3 and then jetted into the cartridge tank 10 from the discharge pipe 13a of the condensing unit 13. Therefore, it is possible to detect whether or not the circulating water is operating normally by visually observing the jetting state from the window portion 14.

Next, in order to replace the circulating water W in the cartridge tank 10, the respective on-off valves 15 are closed, the connection fittings 16 are removed, and the cartridge tank 10 is independently carried out to a predetermined place to replace the circulating water. It is a thing.

(Effect of the Invention) As is clear from the above description, according to the cooling water circulation pump device of the present invention, since the circulating water tank is a cartridge, the circulating water can be easily replaced. Moreover,
The cartridge tank does not require an on-off valve and is inexpensive. Further, when the pump is started, the cartridge tank is placed vertically and the water is supplied to the pump from a high place for priming, so that the priming operation is extremely simple.

[Brief description of drawings]

1 and 2 are schematic views of a cooling water circulation pump device according to the present invention. FIG. 1 shows a state in which a cartridge tank is placed vertically, and FIG. 2 shows a state in which it is placed horizontally. DESCRIPTION OF SYMBOLS 1 ... Pump casing, 2 ... Non-self-priming pump, 4 ... Discharge pipe, 5 ... Suction pipe, 8 ... Mounting part, 10 ... Cartridge tank, 11 ... Water supply / drainage part, 12 ... Water supply part, 12a ... Suction pipe, 13 ... condensation part, 13a ... drain pipe, 14 ... window part, 15 ... open / close valve, 16 ... connecting metal fitting, H ... space part, T ... cooled equipment (water-cooled welding torch), W ... circulating water.

Claims (1)

[Scope of utility model registration request] 1. A cooling water circulation pump device for circulating cooling water in a water storage section by a non-self-priming pump to cool a device to be cooled is mounted on a pump casing containing the pump and above the pump. A cartridge tank, a water supply / drainage section to this tank, a water supply section that is detachably attached to a water supply pipe communicating with the suction section of the pump below the cooling water level in the tank, and a lower end for cooling the inside of the tank A cooling water circulation pump device, comprising: a condensate portion that is located above the water surface and is detachably attached to a condensate pipe of the pump.