Water pressure and air tightness leakage detection device for motor cooler pipeline

Abstract

The utility model relates to the technical field of air tightness detection, in particular to a water pressure and air tightness leakage detection device for a motor cooler pipeline, which comprises a pressing end connecting piece connected with one end of a to-be-detected pipeline and a tail end sealing piece connected with the other end of the to-be-detected pipeline. The pressing end connecting piece comprises a hollow pipe, and one end of the hollow pipe is inserted into one end of the pipeline to be detected and is sealed by a pressing end sealing sleeve; the tail end sealing piece comprises a solid plug, and the solid plug is inserted into the other end of the pipeline to be detected and is sealed through a tail end sealing sleeve. According to the utility model, the pressing end connecting piece and the tail end sealing piece are quickly assembled and disassembled, so that the time cost and the labor hour consumption are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection technical field, especially a motor cooler pipeline water pressure, air tightness leak detection device. BACKGROUND

[0002] The motor cooler is an important component for ensuring normal operation of the motor. During the operation of the motor, heat is generated due to the current passing through the coil and other components. If the heat cannot be dissipated in time, the temperature of the motor will be too high, which will affect the efficiency of the motor and even damage the motor. The traditional cooling methods include air cooling and water cooling.

[0003] The air cooling mainly uses the fan arranged on the motor to take away the heat by the flow of air. The advantage is simple structure and low cost. However, the cooling efficiency of the air cooling is relatively limited, and it may not meet the cooling requirement in the high load or high temperature environment.

[0004] The water cooling circulates the cooling water in the cooling pipeline to take away the heat generated by the motor. The water cooling has better cooling effect, but its structure is relatively complex, and it needs to be matched with the water cooling system, including the water pump, water tank and the like, and if water leakage occurs, the motor may be damaged.

[0005] The hydrogen cooler of the generator is mainly used for cooling of the large generator. When the generator operates, a large amount of heat is generated. Hydrogen is used as the cooling medium, and because the thermal conductivity of hydrogen is high, about 7 times of that of air, it can efficiently take away the heat. Moreover, the density of hydrogen is small, which can reduce the ventilation loss.

[0006] The traditional hydrogen cooler adopts the tube-shell structure, the hydrogen flows outside the tube, and the cooling water circulates in the tube. The heat of the hydrogen is transferred to the cooling water through heat exchange. However, the hydrogen cooler with this structure has some problems, for example, if the pipeline of the hydrogen cooler leaks, the hydrogen may leak into the cooling water, or the cooling water may leak into the hydrogen, which will affect the normal operation of the generator and even cause safety accidents.

[0007] When the airtightness of the motor cooler or the hydrogen cooler of the generator is detected, the conventional fixing methods include: 1. using two sets of clamps to fix the cooler set by four jackscrews; 2. fixing the two ends of the cooler set by using a track. The first fixing method needs to repeatedly disassemble and move the clamps, tighten the fixing device screws, and the device is relatively heavy and inconvenient. The second fixing method does not need to repeatedly disassemble the clamps, but it is not suitable for different types of cooler sets. UTILITY MODEL CONTENTS

[0008] The utility model aims at providing a motor cooler pipeline water pressure, air tightness leak detection device, through the quick installation and disassembly of the pressing end connecting piece and the end sealing piece, time cost and working hours consumption are saved.

[0009] The technical scheme of the utility model discloses

[0010] A motor cooler pipeline water pressure, air-tight leak detection device, including with the pipeline one end of being connected to the pressure end connector, and with the pipeline other end of being connected to the end seal piece;

[0011] The pressure end connector includes a hollow pipe, one end of the hollow pipe is inserted into one end of the pipeline to be measured, and is sealed through the pressure end sealing sleeve;

[0012] The end seal piece includes a solid plug, the solid plug is inserted into the other end of the pipeline to be measured, and is sealed through the end sealing sleeve.

[0013] Further, the pressure end sealing sleeve has a first sealing ring reserved groove A, and the first sealing ring reserved groove A is sleeved with a first sealing ring A;

[0014] One end of the hollow pipe inserted into the pipeline to be measured is a circular truncated cone, the pressure end sealing sleeve has a first reserved expansion joint matched with one end of the circular truncated cone of the hollow pipe, the pressure end sealing sleeve has a first sealing ring reserved groove at the first reserved expansion joint, and the first sealing ring reserved groove is sleeved with a first sealing ring B;

[0015] The hollow pipe is screwed with a pressure end sealing nut.

[0016] Further, the other end of the hollow pipe has an air source connector, and the hollow pipe has a pressure gauge connector between the air source connector and the pressure end sealing sleeve.

[0017] Further, the number of the first reserved expansion joints is four and is distributed in a cross shape.

[0018] Further, the first sealing ring A is a fluorine rubber sealing ring.

[0019] Further, the end sealing sleeve has a second sealing ring reserved groove A, and the second sealing ring reserved groove A is sleeved with a second sealing ring A;

[0020] One end of the solid plug inserted into the pipeline to be measured is a circular truncated cone, the end sealing sleeve has a second reserved expansion joint matched with one end of the circular truncated cone of the solid plug, the solid plug has a second sealing ring reserved groove B at the second reserved expansion joint, and the second sealing ring reserved groove B is sleeved with a second sealing ring B;

[0021] The solid plug is screwed with an end sealing nut.

[0022] Further, the number of the second reserved expansion joints is four and is distributed in a cross shape.

[0023] Further, the second sealing ring A is a fluororubber sealing ring.

[0024] The utility model discloses beneficial effect:

[0025] The utility model discloses through setting up the sealing sleeve of end of pressing and end sealing sleeve, utilize first sealing ring A, first sealing ring B, second sealing ring A, second sealing ring B and static friction force realize sealing, in the process of installation fixed, need not use two groups of clamps with four top silk and cooler group fixed or utilize the track fixed cooling ware group both ends, only need to rotate end of pressing sealing nut and end sealing nut, realize end of pressing connecting piece and end sealing piece's quick installation and disassembly, save time cost and work time consumption. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structural diagram of end of pressing connecting piece.

[0027] Figure 2 It is the explosion drawing of end of pressing connecting piece.

[0028] Figure 3 It is the structural diagram of end of sealing piece.

[0029] Figure 4 It is the explosion drawing of end of sealing piece.

[0030] In the drawing: end of pressing connecting piece 1, end sealing piece 2, hollow pipe 11, end of pressing sealing sleeve 12, solid plug 21, end sealing sleeve 22, first sealing ring reserved slot A 4, first sealing ring A 41, first reserved expansion joint 3, end of pressing sealing nut 13, gas source connecting head 14, pressure gauge connecting head 15, second sealing ring reserved slot A 5, second sealing ring A 51, second reserved expansion joint 6, end sealing nut 23, third sealing ring reserved slot 7, fourth sealing ring reserved slot 8, first sealing ring reserved slot B 9, first sealing ring B 91, second sealing ring reserved slot B 10, second sealing ring B 101. DETAILED DESCRIPTION

[0031] The utility model makes further explanation in combination with the drawings.

[0032] As Figures 1-4 The utility model discloses a first embodiment of motor cooler pipeline water pressure, gas tight leak detection device, including with the pipeline one end of detection connection's end of pressing connecting piece 1 and with the pipeline other end of detection connection's end sealing piece 2, through end of pressing connecting piece 1 and end connecting piece can make in to the pipeline of detection when play the sealing effect.

[0033] The pressing end connector 1 comprises a hollow pipe 11, one end of the hollow pipe 11 is inserted into one end of the pipeline to be tested and sealed through the pressing end sealing sleeve 12. The hollow pipe 11 can be connected and sealed with one end of the pipeline to be tested through the pressing end sealing sleeve 12.

[0034] The end sealing sleeve 2 comprises a solid plug 21, the solid plug 21 is inserted into the other end of the pipeline to be tested and sealed through the end sealing sleeve 22. The solid plug 21 can be connected and sealed with the other end of the pipeline to be tested through the end sealing sleeve 22.

[0035] The pressing end sealing sleeve 12 has a first sealing ring reserved slot A4, a first sealing ring A41 is sleeved in the first sealing ring reserved slot A4, and the hollow pipe 11 can be sealed with one end of the pipeline to be tested through the first sealing ring A41.

[0036] One end of the hollow pipe 11 inserted into the pipeline to be tested is a circular truncated cone 111, the pressing end sealing sleeve 12 has a first reserved expansion joint 3 matched with one end of the circular truncated cone of the hollow pipe 11; the first reserved expansion joint 3 of the pressing end sealing sleeve 12 is provided with a first sealing ring reserved slot B9, and a first sealing ring B91 is sleeved in the first sealing ring reserved slot B9.

[0037] The hollow pipe 11 is screwed with a pressing end sealing nut 13, and the hollow pipe 11 is provided with a first thread matched with the pressing end sealing nut 13. After the pressing end sealing nut 13 is tightened, one end of the circular truncated cone of the hollow pipe 11 is retracted to extrude the pressing end sealing sleeve 12, so that the first reserved expansion joint 3 is expanded, thereby driving the first sealing ring B91 to expand and press tightly with the inner wall of the pipeline to be tested.

[0038] The other end of the hollow pipe 11 has a gas source connector 14 for connecting a compressed gas source bottle, which is convenient for subsequent detection; the hollow pipe 11 has a pressure gauge connector 15 between the gas source connector 14 and the pressing end sealing sleeve 12, which is used for connecting a pressure gauge, which is convenient for subsequent detection.

[0039] The end sealing sleeve 22 has a second sealing ring reserved slot A5, a second sealing ring A51 is sleeved in the second sealing ring reserved slot A5, and the solid plug 21 can be sealed with the other end of the pipeline to be tested through the second sealing ring A51.

[0040] One end of the solid plug 21 inserted into the pipeline to be tested is a circular truncated cone 211, the end sealing sleeve 22 has a second reserved expansion joint 6 matched with one end of the circular truncated cone of the solid plug 21; the second reserved expansion joint 6 of the solid plug 21 is provided with a second sealing ring reserved slot B10, and a second sealing ring B101 is sleeved in the second sealing ring reserved slot B10.

[0041] The solid plug 21 is screwed with a terminal sealing nut 23, and the solid plug 21 is provided with a second thread matched with the terminal sealing nut 23. After the terminal sealing nut 23 is screwed, the circular truncated cone-shaped end of the solid plug 21 is retracted to extrude the terminal sealing sleeve 22, so that the second reserved expansion joint 6 is expanded, thereby driving the second sealing ring B101 to expand and tightly combine with the inner wall of the pipeline to be tested.

[0042] The working principle of the embodiment is as follows: the solid plug 21 is first inserted into the terminal sealing sleeve 22, one end of the second sealing ring A51 sleeved on the terminal sealing sleeve 22 is inserted into the other end of the pipeline to be tested, the terminal sealing nut 23 is sleeved on the end of the solid plug 21 provided with the second thread, the terminal sealing nut 23 is screwed to tightly abut against the terminal sealing sleeve 22, and the circular truncated cone-shaped end of the solid plug 21 located in the pipeline to be tested is tightly abutted against the port of the terminal sealing sleeve 22, so that the second reserved expansion joint 6 is expanded, thereby driving the second sealing ring B101 to expand and tightly combine with the inner wall of the pipeline to be tested, and the sealing with the pipeline to be tested is realized through static friction;

[0043] The gas source connector 14 is connected with the compressed gas source bottle, the pressure gauge connector 15 is connected with the pressure gauge, one end of the hollow pipe 11 sleeved with the pressing end sealing sleeve 12 is inserted into one end of the pipeline to be tested, the pressing end sealing nut 13 is screwed to tightly abut against the pressing end sealing sleeve 12, and the circular truncated cone-shaped end of the hollow pipe 11 located in the pipeline to be tested is tightly abutbed against the port of the pressing end sealing sleeve 12, so that the first reserved expansion joint 3 is expanded, thereby driving the first sealing ring B91 to expand and tightly combine with the inner wall of the pipeline to be tested, and the sealing of the pipeline to be tested is realized through static friction;

[0044] The pipeline is filled with gas through the valve on the gas source connector 14, and the data is read through the pressure gauge installed on the pressure gauge connector 15.

[0045] On the basis of the first embodiment, the utility model provides a second embodiment of motor cooler pipeline water pressure, gas tightness leak detection device, the number of first reserved expansion joint 3 is four and is cross distribution, the number of second reserved expansion joint 6 is four and is cross distribution, so that when realizing expansion, first sealing ring B91, second sealing ring B101 can be uniformly stressed.

[0046] On the basis of any one of the above embodiments, the utility model provides a third embodiment of motor cooler pipeline water pressure, gas tightness leak detection device, first sealing ring A41 is fluorine rubber sealing ring, second sealing ring A51 is fluorine rubber sealing ring, and fluorine rubber material is strong in tenacity and elasticity, which can better realize sealing.

[0047] On the basis of any one of the above embodiments, the utility model provides a fourth embodiment of motor cooler pipeline water pressure, air -tight leak detection device, hollow pipe 11 has third sealing ring reserved groove 7, third sealing ring reserved groove 7 inside sleeve joint has third sealing ring 7 (not shown), solid plug 21 has fourth sealing ring reserved groove 8, fourth sealing ring reserved groove 8 inside sleeve joint has fourth sealing ring 8 (not shown), through third sealing ring 7 can make hollow pipe 11 with the better close connection of pressing end sealing sleeve 12, through fourth sealing ring 8 can make solid plug 21 with the better close connection of end sealing sleeve 22.

[0048] The third sealing ring 7 is a fluorine rubber sealing ring, and the fourth sealing ring 8 is a fluorine rubber sealing ring. The fluorine rubber material has high toughness and elasticity, and can better realize sealing.

[0049] The above is only the preferred embodiment of the utility model, and cannot be understood as the limitation of the application. Any equivalent change and modification made within the scope of the utility model application patent shall be within the scope of the utility model.

Claims

1. An electric motor cooler pipe water pressure, air tightness leak detection device, characterized in that, The punch end connector is connected with one end of the pipeline to be tested, and the end sealing member is connected with the other end of the pipeline to be tested; The punch end connector comprises a hollow pipe, one end of the hollow pipe is inserted into one end of the pipeline to be tested, and is sealed by a punch end sealing sleeve; The end sealing member comprises a solid plug, the solid plug is inserted into the other end of the pipeline to be tested, and is sealed by an end sealing sleeve.

2. The water pressure and air tightness leak detection device for motor cooler pipe according to claim 1, characterized in that, The punch end sealing sleeve has a first sealing ring reserved groove A, and the first sealing ring reserved groove A is sleeved with a first sealing ring A; One end of the hollow pipe inserted into the pipeline to be tested is a circular truncated cone, the punch end sealing sleeve has a first reserved expansion joint matched with one end of the circular truncated cone of the hollow pipe, the punch end sealing sleeve has a first sealing ring reserved groove at the first reserved expansion joint, and the first sealing ring reserved groove is sleeved with a first sealing ring B; The hollow pipe is sleeved with a punch end sealing nut.

3. The water pressure and air tightness leak detection device for motor cooler pipe according to claim 1 or 2, characterized in that, The other end of the hollow pipe has a gas source connector, and the hollow pipe has a pressure gauge connector between the gas source connector and the punch end sealing sleeve.

4. The water pressure and air tightness leak detection device for motor cooler pipe according to claim 2, characterized in that, The number of the first reserved expansion joints is four and is distributed in a cross shape.

5. The water pressure and air tightness leak detection device for motor cooler pipe according to claim 2, characterized in that, The first sealing ring A is a fluorine rubber sealing ring.

6. A water pressure and air tightness leak detection device for motor cooler pipes according to claim 1, characterized in that, The end sealing sleeve has a second sealing ring reserved groove A, and the second sealing ring reserved groove A is sleeved with a second sealing ring A; One end of the solid plug inserted into the pipeline to be tested is a circular truncated cone, the end sealing sleeve has a second reserved expansion joint matched with one end of the circular truncated cone of the solid plug, the solid plug has a second sealing ring reserved groove B at the second reserved expansion joint, and the second sealing ring reserved groove B is sleeved with a second sealing ring B; The solid plug is sleeved with an end sealing nut.

7. A water pressure and air tightness leak detection device for motor cooler pipes according to claim 6, characterized in that, The number of the second reserved expansion joints is four and is distributed in a cross shape.

8. A water pressure and air tightness leak detection device for motor cooler pipes according to claim 6, characterized in that, The second sealing ring A is a fluorine rubber sealing ring. The second sealing ring A is a fluorine rubber sealing ring.

Images