CN214426927U

CN214426927U - Cooling water pipe leakage detection device of cooler and breather pipe thereof

Info

Publication number: CN214426927U
Application number: CN202120461776.9U
Authority: CN
Inventors: 杨康为; 蒋斌
Original assignee: Guangxi Pingban Hydropower Development Co ltd
Current assignee: Guangxi Pingban Hydropower Development Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-10-19
Anticipated expiration: 2031-03-03

Abstract

The utility model provides a quick leak hunting device of condenser's condenser tube and breather pipe thereof, including three-way valve, manometer and breather pipe, the air supply is connected to three-way valve's first valve mouth, and the manometer is connected at the second valve gate, and the breather pipe is connected at the third valve gate. The breather pipe comprises a pipe body, wherein the pipe body is in a horn shape, external threads are arranged outside the pipe body, and the pipe body penetrates and is connected with an expansion joint, a first breather joint, a first nut, a second nut and a second breather joint from left to right in sequence. This leak hunting device simple structure, convenient to use can find out the air-cooled generator cooler who leaks and the condenser tube of water-cooled thrust cooler fast when taking place to leak, improve leak hunting efficiency, are fit for promoting.

Description

Cooling water pipe leakage detection device of cooler and breather pipe thereof

Technical Field

The utility model belongs to the technical field of the instrument of looking for leaks, concretely relates to condenser tube of cooler looks for leaks device and breather pipe thereof.

Background

When the generator operates, a large amount of heat energy can be generated in the process of converting mechanical energy into electric energy, so that the temperature of the generator is increased, and the auxiliary equipment is generally required to cool the generator in order to avoid damage to equipment due to overhigh temperature. Air coolers are widely used in cooling generators due to the factors of simple structure, large heat exchange area, high safety and the like.

The heat that the generator operation produced transmits shell and fin to air cooler's shell and tube and fin through the mode of forcing the convection current, because shell and fin among the air cooler all are made by the higher copper of coefficient of heat conductivity, working medium in the shell and tube is the great water of specific heat capacity, and the heat radiating area of fin is big, and the heat transfer volume guarantees greatly that the temperature of generator keeps in the allowed range.

Because the water flow has impurities, the strength of copper is low, the corrosion resistance is low, and under the actions of continuous scouring, corrosion and the like, the cooling water pipe can be gradually thinned, even water is leaked, and the short circuit of the generator can be caused. The cooling water pipes of the air cooler are densely arranged and have a large number, and the cooling pipes with water leakage are difficult to find out quickly when the water leakage occurs.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a condenser tube leak hunting device and breather pipe thereof of cooler, concrete scheme is as follows:

the breather pipe comprises a pipe body, wherein the pipe body is in a horn shape, external threads are arranged outside the pipe body, and the pipe body is sleeved with an expansion joint, a first breather joint, a first nut, a second nut and a second breather joint from left to right in sequence.

The expansion joint is provided with a first sealing gasket between one end of the first ventilation joint, a second sealing gasket and a first gasket are sequentially arranged between the other end of the first ventilation joint and the first nut respectively, and a second gasket and a third sealing gasket are sequentially sleeved between the second nut and the second ventilation joint respectively.

The expansion joint is T-shaped, the bottom of the expansion joint is in a circular tube shape, and a plurality of grooves are uniformly formed in the circumferential direction respectively.

The first vent joint and the second vent joint are both in a T-shaped nut shape, and the two vent joints are symmetrically connected outside the pipe body. .

The quick leakage detection device for the cooling water pipe of the cooler comprises a three-way valve, a pressure gauge and a vent pipe, wherein a first valve port of the three-way valve is connected with an air source, a second valve port is connected with the pressure gauge, and a third valve port is connected with the vent pipe.

The cooling water pipe is characterized by further comprising a cooling water pipe and a plugging plug, wherein one end of the cooling water pipe is connected with the vent pipe, and the other end of the cooling water pipe is sleeved with the plugging plug.

The advantages of the utility model

The utility model discloses a device and breather pipe are looked for hourglass to condenser tube of cooler, the air supply is connected to the first valve mouth of three-way valve, and the manometer is connected at the second valve gate, and the breather pipe is connected at the third valve gate. Through opening first valve mouth, fill into the air supply and pressurize to condenser tube, close first valve mouth again, close the air supply, whether the pressure value through observing the manometer descends, judge whether the condenser tube leaks, the breather pipe, the shutoff end cap is connected with condenser tube, can guarantee its gas tightness, this leak hunting device simple structure, dismouting and convenient to use, can find out the condenser tube of the air-cooled generator cooler who leaks and water-cooled thrust cooler fast when taking place to leak, the efficiency of leaking hunting is improved, and is suitable for being generalized.

Drawings

Fig. 1 is an exploded view of the whole structure of the leakage detecting device for the cooling water pipe of the present invention.

Fig. 2 is a schematic structural view of the breather pipe of fig. 1.

Fig. 3 is a front view of the tube of fig. 2.

Fig. 4 is a side view of fig. 3.

Fig. 5 is a front view of the expansion joint of fig. 1.

Fig. 6 is a bottom view of fig. 5.

Fig. 7 is a front view of the vent fitting of fig. 1.

Fig. 8 is a perspective view of fig. 7.

Fig. 9 is a side view of fig. 7.

In the figure:

1. a breather pipe; 101. a pipe body; 102. an expansion joint; 103. a first gasket; 104. a first vent fitting; 105. a second gasket; 106. a first gasket; 107. a first nut; 108. a second nut; 109. a second gasket; 110. a third gasket; 111. a second vent fitting; 2. a three-way valve; 201. a first valve port; 202. a second valve doorway; 203. a third valve gate; 3. a pressure gauge; 4. a cooling water pipe; 5. and (6) plugging the plug.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and specific embodiments, which should be noted that the present invention is not limited to the scope of the present invention. The terms "first," "second," and "third" in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order.

As shown in fig. 1 to 9, the cooling water pipe leakage detecting device of a cooler provided in this embodiment includes a vent pipe 1, a three-way valve 2, a pressure gauge 3, a cooling water pipe 4, and a plugging plug 5, where the vent pipe 1 of this embodiment includes a pipe body 101, the pipe body 101 is in a horn shape, an external thread is provided outside the pipe body 101, and an expansion joint 102, a first sealing gasket 103, a first ventilation joint 104, a second sealing gasket 105, a first gasket 106, a first nut 107, a second nut 108, a second gasket 109, a third sealing gasket 110, and a second ventilation joint 111 are respectively and sequentially sleeved from left to right. Preferably, the expansion joint 102 is T-shaped, has a circular tube-shaped bottom, and is uniformly provided with a plurality of grooves along the circumferential direction. The external diameter of the flared end of the pipe body 101 is larger than the internal diameter of the expansion joint 102 and smaller than the internal diameter of the cooling water pipe 4, and the external diameter of the expansion joint 102 is smaller than the internal diameter of the cooling water pipe 4, so that the expansion joint 102 can be sleeved into the cooling water pipe 4 and clamped by the pipe body 101 at the flared end to prevent the expansion joint 102 from separating from the pipe body 101. The inner diameters of the first, second and

third gaskets

103, 105 and 110 are all larger than the outer diameters of the first and second air-through

joints

104 and 111, so that the expansion joint of the contact surface of the cooling water pipe 4 and the first and second air-through

joints

104 and 111 is prevented from being blocked in the pressure resistance test of the cooling water pipe 4. The first and

second vent fittings

104, 111 are both T-nut shaped and are threaded symmetrically outside the tube 101.

The first nut 107 and the second nut 108 are both hexagon head nuts.

The first valve port 201 of the three-way valve 2 is connected with a gas source, the second valve port 202 is connected with a pressure gauge 3, and the third valve port 203 is connected with a vent pipe 1. One end of the cooling water pipe 4 is connected with the vent pipe 1, and the other end is sleeved with a plugging plug 5, preferably, the plugging plug 5 is a cone and is made of rubber material.

The pressure gauge 3 is used for recording the pressure value of the cooling water pipe 4 after the air source is filled and closed, and judging whether the cooling water pipe 4 leaks.

The purpose of the first, second and

third gaskets

103, 105 and 110 and the plugging plug 5 is to enhance the air tightness between the cooling water pipe 4 and the ventilation pipe 1.

The working principle is as follows:

fig. 1 only shows the cooling water pipe 4 in the air-cooled generator cooler and the water-cooled thrust cooler, before looking for the cooling water pipe 4 that leaks, the upper and lower water tank end covers of the air-cooled generator cooler and the water-cooled thrust cooler need to be dismantled, clean the end face of the pipe bearing plate, ensure the smoothness of the end face, squeeze the plugging plug 5 into one end of the cooling water pipe 4 that needs to be checked, telescope the pipe body 101 into the other end of the cooling water pipe 4 that needs to be checked for the horn-shaped end, make the expansion joint 102 expand and connect in the cooling water pipe 4 by screwing up the first nut 107, and compress the first ventilating joint 111 and the cooling water pipe 4, ensure the sealing performance thereof. The other end of the pipe body 101 is connected with a second valve port 202 of the three-way valve 2, the second nut 108 is screwed down, the third sealing gasket 110 is compressed, the pressure gauge 3 is installed at the second valve port 202 of the three-way valve 2, and a first valve port 201 of the three-way valve 2 is connected with an air source. Opening a first valve port 201, pressurizing the cooling water pipe 4, and recording the pressure value of a pressure gauge 3 during pressurizing; and closing the first valve port 201, observing whether the pressure value of the pressure gauge 3 is reduced or not, and if the pressure value is reduced, proving that the cooling water pipe 4 leaks. After the cooling water pipe 4 is inspected, the first nut 107 and the second nut 108 are loosened, the vent pipe 1 and the plugging plug 5 are taken out, the next cooling water pipe 4 is inspected, and the steps are repeated until the leakage inspection of all the cooling water pipes 4 is completed.

Claims

1. The breather pipe is characterized by comprising a pipe body, wherein the pipe body is in a horn shape, external threads are arranged outside the pipe body, and the pipe body is sleeved with an expansion joint, a first breather joint, a first nut, a second nut and a second breather joint from left to right in sequence.

2. The vent pipe according to claim 1, wherein a first gasket is disposed between the expansion joint and one end of the first vent joint, a second gasket and a first gasket are sequentially disposed between the other end of the first vent joint and the first nut, and a second gasket and a third gasket are sequentially disposed between the second nut and the second vent joint.

3. The snorkel as recited in claim 1, wherein the expansion joint is T-shaped, has a tubular bottom, and is provided with a plurality of grooves uniformly formed in a circumferential direction.

4. The snorkel as recited in claim 1, wherein the first and second venting connectors are each in the form of a T-nut and are symmetrically connected to the exterior of the snorkel body.

5. A quick leak detector for a cooling water pipe of a cooler is characterized by comprising a three-way valve, a pressure gauge and a vent pipe according to any one of claims 1 to 4, wherein a first valve port of the three-way valve is connected with an air source, a second valve port of the three-way valve is connected with the pressure gauge, and a third valve port of the three-way valve is connected with the vent pipe.

6. The cooling water pipe quick leak checking device of the cooler according to claim 5, further comprising a cooling water pipe and a plugging plug, wherein one end of the cooling water pipe is connected with the vent pipe, and the other end of the cooling water pipe is sleeved with the plugging plug.