CN210742043U

CN210742043U - Temperature change testing machine for pipe leakage detection

Info

Publication number: CN210742043U
Application number: CN201921678732.0U
Authority: CN
Inventors: 周昱杰
Original assignee: Desaff Measurement Technology (jiangsu) Co Ltd
Current assignee: Desaff Measurement Technology (jiangsu) Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-12
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a pipe fitting seepage detection area specifically is a temperature variation testing machine for pipe fitting seepage detects, including the equipment principal, the connecting piece is all installed at the upper end side and the top of equipment principal, fixedly connected with experiment pipe between the connecting piece, the front end gomphosis of equipment principal has control panel, and control panel's below is equipped with the control button, the manometer has been cup jointed to the upper end of experiment pipe, and the upper end of experiment pipe is located one side of manometer and has been cup jointed the thermometer, the one side that just is located the thermometer on the experiment pipe is equipped with the flowmeter, the connecting piece includes connecting seat and connector, the connector laminating is in the tip department of connecting seat. Whether a certain amount of deformation can appear under the effect of expend with heat and contract with cold through the joint of hot and cold water circulation inspection pipeline in turn, if take place deformation then hot and cold water can ooze through the junction under the pressure effect to reach the sealed effect of pipe connection.

Description

Temperature change testing machine for pipe leakage detection

Technical Field

The utility model relates to a pipe fitting seepage detects the field, specifically is a temperature variation testing machine for pipe fitting seepage detects.

Background

The tightness of the pipe needs to be detected after the pipe is manufactured, and the situation that the joint of the pipe and the pipe has no leakage, falling and other abnormal phenomena at the joint under the condition that the temperature change of the conveyed medium is carried out alternately in a circulating mode is verified.

Traditional tubular product is generally to be when sealing up the water injection experiment and is injecting normal atmospheric temperature water in tubular product and increase certain pressure again to this is observed the sealed of tubular product, but certain deformation can take place for tubular product under expend with heat and contract with cold's effect, and deformation in-process junction probably has the gap, leads to the seepage. Accordingly, one skilled in the art provides a temperature variation testing machine for pipe leakage detection to solve the problems set forth in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature variation testing machine for pipe fitting seepage detects is in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a temperature variation testing machine for pipe fitting seepage detection, includes the equipment main part, the connecting piece is all installed at the upper end side and the top of equipment main part, fixedly connected with experiment pipe between the connecting piece, the front end gomphosis of equipment main part has control panel, and control panel's below is equipped with the control button, the manometer has been cup jointed to the upper end of experiment pipe, and the upper end of experiment pipe has cup jointed the thermometer in one side that is located the manometer, the experiment is managed and is equipped with the flowmeter in one side that is located the thermometer.

As a further aspect of the present invention: the connecting piece includes connecting seat and connector, the connector laminating is in the tip department of connecting seat, the tip laminating of connecting seat has the sealing washer, and the internal diameter of sealing washer and the inner chamber diameter of connecting seat equal.

As a further aspect of the present invention: the connector laminating is in the tip department of connecting seat, connecting seat side symmetric welding has a set of jack catch, and is less than the external diameter of connector between the jack catch, the locking hole has been seted up to the side of connector, and the width of seting up width and jack catch tip in locking hole equals, the end welding of connector has the intubate.

As a further aspect of the present invention: the inside bottom that the inside of equipment main part was equipped with battery and equipment main part is equipped with the refrigeration piece, and the top overlap joint of refrigeration piece has the cold water storage cistern, the bottom opposite side of equipment main part is equipped with the hot plate, and the overlap joint has the hot-water tank on the hot plate.

As a further aspect of the present invention: the water heater comprises a water tank, a water outlet pipe, a return pipe, a connecting piece, a water pump and a water pump, wherein the water outlet pipe is arranged at the top of the water tank, the return pipe is inserted into the other side of the top of the water tank, the tail end of the water outlet pipe is in butt joint with the connecting piece embedded in the side face of the equipment body, the end of the return pipe is connected with the connecting piece at the top of the equipment.

As a further aspect of the present invention: the junction of the water outlet pipe, the cold water tank and the hot water tank is connected with a three-way valve, and the junction of the return pipe, the cold water tank and the hot water tank is respectively sleeved with a one-way valve.

As a further aspect of the present invention: the inner wall of the equipment main body is provided with a conducting wire, and the storage battery is respectively connected with the refrigerating sheet and the heating plate through the conducting wire.

Compared with the prior art, the beneficial effects of the utility model are that: the pipeline is connected as required, the experiment is carried out for 2500 times of cyclic changes under the conditions of normal temperature water of (20 +/-5) DEG C and hot water of (93 +/-5) DEG C by using (1.6 +/-0.16) megapascal internal pressure, one cycle is (30 +/-2) minutes, cold water and hot water are respectively kept for 15 minutes, cold water and hot water are alternately completed within 1 minute, the connection position of a pipe fitting and the pipe is checked, whether a certain amount of deformation occurs under the action of expansion with heat and contraction with cold at the connection position of the pipeline is checked through the alternating circulation of the cold water and the hot water, if the deformation occurs, the cold water and the hot water can seep through the connection position under the action of pressure, thereby obtaining the sealing effect of pipeline connection, the hot water is heated through a heating plate, the cold water utilizes a refrigerating sheet to refrigerate the water tank, and.

Drawings

FIG. 1 is a schematic structural diagram of a temperature variation testing machine for pipe leakage detection;

FIG. 2 is a schematic diagram of a connection component structure in a temperature variation testing machine for pipe leakage detection;

fig. 3 is a schematic diagram of an internal structure of an apparatus body in a temperature variation testing machine for pipe leakage detection.

In the figure: 1. a pressure gauge; 2. an apparatus main body; 3. a control panel; 4. a control button; 5. a flow meter; 6. a connecting member; 7. an experimental tube; 8. a thermometer; 9. a locking hole; 10. a seal ring; 11. a connecting seat; 12. a claw; 13. a connector; 14. inserting a tube; 15. a water pump; 16. a three-way valve; 17. a cold water tank; 18. a storage battery; 19. a wire; 20. a refrigeration plate; 21. heating plates; 22. a hot water tank; 23. a one-way valve; 24. a return pipe; 25. and (5) discharging a water pipe.

Detailed Description

Please refer to fig. 1-3, in the embodiment of the utility model, a temperature variation testing machine for pipe fitting leakage detection, including equipment main part 2, connecting piece 6 is all installed at the upper end side and the top of equipment main part 2, fixedly connected with experiment pipe 7 between the connecting piece 6, the front end gomphosis of equipment main part 2 has control panel 3, and control panel 3's below is equipped with control button 4, manometer 1 has been cup jointed to the upper end of experiment pipe 7, and thermometer 8 has been cup jointed to one side that the upper end of experiment pipe 7 is located manometer 1, and one side that just is located thermometer 8 on the experiment pipe 7 is equipped with flow meter 5.

In fig. 2, connecting piece 6 includes connecting seat 11 and connector 13, and connector 13 laminates in the tip department of connecting seat 11, and the tip laminating of connecting seat 11 has sealing washer 10, and the internal diameter of sealing washer 10 equals with the inner chamber diameter of connecting seat 11, utilizes intubate 14 to insert connector 13 in experimental tube 7, then docks connecting seat 11 with connector 13, remedies the gap between the two through sealing washer 10.

In fig. 2, the joint 13 is attached to the end of the joint base 11, a set of claws 12 are symmetrically welded to the side of the joint base 11, the outer diameter of each claw 12 is smaller than that of the joint 13, a locking hole 9 is formed in the side of the joint base 13, the width of the locking hole 9 is equal to that of the end of each claw 12, an insertion tube 14 is welded to the tail end of the joint base 13, the claws 12 are embedded into the locking holes 9 in the side of the joint base 13 after butt joint by rotating ninety degrees, the fixing problem after butt joint is solved, and the joint 13 and the attachment of the joint base 11 extrude the seal ring 10 after locking.

In fig. 3, a storage battery 18 is disposed inside the main body 2, a refrigeration plate 20 is disposed at the bottom end inside the main body 2, a cold water tank 17 is connected to the top of the refrigeration plate 20, a heating plate 21 is disposed at the other side of the bottom end of the main body 2, a hot water tank 22 is connected to the heating plate 21, the storage battery 18 supplies energy to the refrigeration plate 20 and the heating plate 21, the refrigeration plate 20 keeps the liquid in the cold water tank 17 at a low temperature, the refrigeration plate 20 is a heat transfer tool, when a thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material passes through a current, heat transfer occurs between the two ends, the heat is transferred from one end to the other end, thereby generating a temperature difference to form a cold and hot end, when an N-type semiconductor material and a P-type semiconductor material are connected to form a galvanic pair, energy transfer can be generated after a direct current is conducted in the circuit, the current flows from the N-type element to the joint of the P-type element to absorb heat to become a cold end, and flows from the P-type element to the joint of the N-type element to release heat to become a hot end, and the heating plate 21 provides heat energy for the hot water tank 22.

In fig. 3, the top of each of the cold water tank 17 and the hot water tank 22 is provided with a water outlet pipe 25, the other side of the top of each of the cold water tank 17 and the hot water tank 22 is inserted with a return pipe 24, the end of the water outlet pipe 25 is in butt joint with the connecting piece 6 embedded in the side surface of the device body 2, the end of the return pipe 24 is connected with the connecting piece 6 at the top of the device body 2, the water outlet pipe 25 is connected with a water pump 15, the water outlet pipe 25 conveys cold water and hot water into the experimental pipe 7, the return pipe 24 conveys the cold water and hot water in the experimental pipe 7 into the cold water tank 17.

In fig. 3, a three-way valve 16 is connected to the connection of the water outlet pipe 25 and the cold water tank 17 and the hot water tank 22, and a one-way valve 23 is respectively sleeved to the connection of the return pipe 24 and the cold water tank 17 and the hot water tank 22, and when cold and hot water is conveyed, the three-way valve 16 is closed or another channel is opened to cause the cold and hot water to be mixed, and the functions of the one-way valve 23 are the same.

In fig. 3, a wire 19 is provided on the inner wall of the apparatus main body 2, and the storage battery 18 is connected to the cooling fins 20 and the heating plate 21 through the wire 19, respectively, and electric power is transmitted through the wire 19.

The utility model discloses a theory of operation is: when the device is used, water is filled in the cold water tank 17 and the hot water tank 22, then the storage battery 18 is turned on through the control button 4, the storage battery 18 supplies electric energy to the refrigerating sheet 20 (model is TEC1-12706) and the heating plate 21 through the lead 19, the refrigerating sheet 20 keeps the liquid in the cold water tank 17 at low temperature, the heating plate 21 supplies heat energy to the hot water tank 22, then the experimental pipe 7 is butted with the connecting piece 6, so that one end of the test tube 7 is connected with the water outlet pipe 25, the other end is connected with the return pipe 24, the connector 13 is inserted into the test tube 7 by the insertion pipe 14, then the connector 13 is butted with the connecting seat 11, rotating ninety degrees after docking causes the jaws 12 to be inserted into the locking holes 9 in the side of the coupler 13, completing the fixation problem after docking, and extruding the sealing ring 10 at the joint of the connector 13 and the connecting seat 11 after locking, and finally pumping cold water and hot water through a water pump 15 (model PW177-EH) for testing.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a temperature variation testing machine for pipe fitting leakage detection, includes equipment main part (2), its characterized in that: connecting piece (6) are all installed to the upper end side and the top of equipment main part (2), fixedly connected with experiment pipe (7) between connecting piece (6), the front end gomphosis of equipment main part (2) has control panel (3), and the below of control panel (3) is equipped with control button (4), manometer (1) has been cup jointed to the upper end of experiment pipe (7), and one side that the upper end of experiment pipe (7) is located manometer (1) has cup jointed thermometer (8), one side that just is located thermometer (8) on experiment pipe (7) is equipped with flow meter (5).

2. The temperature change testing machine for pipe leakage detection according to claim 1, wherein the connecting piece (6) comprises a connecting seat (11) and a connecting head (13), the connecting head (13) is attached to the end portion of the connecting seat (11), a sealing ring (10) is attached to the end portion of the connecting seat (11), and the inner diameter of the sealing ring (10) is equal to the inner cavity diameter of the connecting seat (11).

3. The temperature change testing machine for pipe leakage detection according to claim 2, wherein the connector (13) is attached to the end of the connecting base (11), a set of clamping jaws (12) are symmetrically welded to the side of the connecting base (11), the outer diameter of the connector (13) is smaller than that of the clamping jaws (12), the side of the connector (13) is provided with a locking hole (9), the opening width of the locking hole (9) is equal to that of the end of the clamping jaws (12), and the tail end of the connector (13) is welded with an insertion pipe (14).

4. The temperature change testing machine for pipe leakage detection according to claim 3, wherein a storage battery (18) is arranged inside the device main body (2), a refrigeration sheet (20) is arranged at the bottom end inside the device main body (2), a cold water tank (17) is lapped on the top of the refrigeration sheet (20), a heating plate (21) is arranged on the other side of the bottom end of the device main body (2), and a hot water tank (22) is lapped on the heating plate (21).

5. The temperature change testing machine for pipe leakage detection according to claim 4, wherein the top of each of the cold water tank (17) and the hot water tank (22) is provided with a water outlet pipe (25), the other side of the top of each of the cold water tank (17) and the hot water tank (22) is provided with a return pipe (24) in an inserted manner, the tail end of each of the water outlet pipes (25) is butted with the connecting piece (6) embedded on the side surface of the equipment main body (2), the end part of each of the return pipes (24) is connected with the connecting piece (6) on the top of the equipment main body (2), and the water outlet pipe (25) is connected with a water pump (15.

6. The temperature variation testing machine for pipe leakage detection according to claim 5, wherein the joint of the water outlet pipe (25) and the cold water tank (17) and the hot water tank (22) is connected with a three-way valve (16), and the joint of the return pipe (24) and the cold water tank (17) and the hot water tank (22) is respectively sleeved with a one-way valve (23).

7. The temperature change testing machine for pipe leakage detection according to claim 4, characterized in that the inner wall of the device body (2) is provided with a conducting wire (19), and the storage battery (18) is respectively connected with the refrigerating sheet (20) and the heating plate (21) through the conducting wire (19).