Accelerated fatigue test medium system device for acute-angle notch of hot-rolled U-shaped steel sheet pile

Abstract

The utility model discloses a hot-rolled U-shaped steel sheet pile acute-angle notch accelerated fatigue test medium system device, which belongs to the technical field of fatigue test devices and comprises a hot-rolled U-shaped steel sheet pile, a low-temperature fatigue test system, a seawater corrosion medium system and a rubber soft sealing cover system. The low-temperature fatigue test system comprises a condenser, an evaporator, a refrigeration compressor, an expansion valve and a circulating fan; the seawater corrosion medium system comprises a corrosion medium storage box, a filter, a corrosion-resistant pump and a steam heat exchanger. According to the medium system device for the accelerated fatigue test of the acute-angle notch of the hot-rolled U-shaped steel sheet pile, cold air generated by the low-temperature fatigue test system can be conveyed into the rubber soft sealing cover system by the circulating fan so as to simulate a low-temperature test on the hot-rolled U-shaped steel sheet pile; and a corrosion medium can be introduced into the rubber soft sealing cover so as to simulate a seawater corrosion test on the hot-rolled U-shaped steel sheet pile.

Description

TECHNICAL FIELD

[0001] The utility model relates to fatigue test device technical field especially relates to hot rolling U type steel sheet pile acute angle notch accelerated fatigue test medium system device. BACKGROUND

[0002] U type steel sheet pile is also called Larsen steel sheet pile, it is used as a new building material, when building bridge cofferdam, large pipeline laying, temporary ditch excavation, it is used as retaining wall, water retaining wall, sand retaining wall, in wharf, unloading yard, it is used as retaining wall, retaining wall, dike protection bank etc., plays an important role in engineering, Larsen steel sheet pile does cofferdam not only green, environmental protection and construction speed is fast, construction cost is low, has good waterproof function, in order to guarantee the performance of U type steel sheet pile, needs to carry out fatigue test to it.

[0003] In order to shorten the experimental period of U type steel sheet pile fatigue test, generally will set up acute angle notch on U type steel sheet pile, in prior art, generally, test personnel manually applies cold water and seawater and other corrosion medium to the notch to carry out low temperature fatigue and seawater corrosion test, this mode is not only inconvenient to operate, and low efficiency, needs to spend long time. UTILITY MODEL CONTENTS

[0004] In order to solve the problem of not only inconvenient operation, and low efficiency, the utility model provides hot rolling U type steel sheet pile acute angle notch accelerated fatigue test medium system device, technical scheme is as follows:

[0005] Hot rolling U type steel sheet pile acute angle notch accelerated fatigue test medium system device includes hot rolling U type steel sheet pile, low temperature fatigue test system, seawater corrosion medium system, rubber soft body sealing cover system;

[0006] The low temperature fatigue test system includes condenser, evaporator, refrigeration compressor, expansion valve and circulating fan;

[0007] The seawater corrosion medium system includes corrosion medium storage tank, filter, corrosion resistant pump and vapor heat exchanger;

[0008] The rubber soft body sealing cover system includes inlet tee bend valve, outlet tee bend valve and rubber soft body sealing cover.

[0009] The cold gas generated by the low temperature fatigue test system is delivered to the rubber soft body sealing cover system by the circulating fan to simulate the low temperature test of the hot rolling U type steel sheet pile, and the seawater corrosion medium system can pass the corrosion medium into the rubber soft body sealing cover to simulate the seawater corrosion test of the hot rolling U type steel sheet pile.

[0010] Preferably, the condenser, evaporator and refrigeration compressor are connected by copper pipes, and the expansion valve is arranged on the outer surface of the copper pipe connecting the condenser and the evaporator.

[0011] Preferably, the corrosion medium storage tank, filter, corrosion-resistant pump and vapor heat exchanger are all connected through corrosion-resistant pipes.

[0012] Preferably, the top of the corrosion medium storage tank is provided with an agitator extending into the interior of the corrosion medium storage tank.

[0013] Preferably, the rubber soft body sealing cover is arranged on the outer surface of the hot-rolled U-shaped steel sheet pile, and the rubber soft body sealing cover is connected with the outlet three-way valve.

[0014] Preferably, the circulating fan is connected with the evaporator, and the circulating fan is connected with the rubber soft body sealing cover through the inlet three-way valve.

[0015] Preferably, one end of the outlet three-way valve is connected with the corrosion medium storage tank through a corrosion-resistant pipe, the other end of the outlet three-way valve is connected with the evaporator through a copper pipe, and the vapor heat exchanger is connected with the inlet three-way valve through a copper pipe.

[0016] The rubber soft body sealing cover system can wrap the acute corner gap of the hot-rolled U-shaped steel sheet pile, so that the cold air generated by the low-temperature fatigue test system and the seawater in the seawater corrosion medium system can fully contact the acute corner gap of the hot-rolled U-shaped steel sheet pile.

[0017] Advantages:

[0018] The advantages of the technical scheme of the utility model are as follows:

[0019] 1. The hot-rolled U-shaped steel sheet pile acute corner gap accelerated fatigue test medium system device, by setting the low-temperature fatigue test system, the cold air generated by the low-temperature fatigue test system can be transported into the rubber soft body sealing cover system by the circulating fan, so as to simulate the low-temperature test of the hot-rolled U-shaped steel sheet pile, and by setting the seawater corrosion medium system, the corrosion medium can be introduced into the rubber soft body sealing cover, so as to simulate the seawater corrosion test of the hot-rolled U-shaped steel sheet pile.

[0020] 2. The hot-rolled U-shaped steel sheet pile acute corner gap accelerated fatigue test medium system device, by setting the rubber soft body sealing cover system, the acute corner gap of the hot-rolled U-shaped steel sheet pile can be wrapped, so that the cold air generated by the low-temperature fatigue test system and the corrosion medium in the seawater corrosion medium system can fully contact the acute corner gap of the hot-rolled U-shaped steel sheet pile, so that the test effect is better and the efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is an overall system schematic diagram of a medium system device for an acute-angle notch accelerated fatigue test of a hot-rolled U-shaped steel sheet pile according to the utility model.

[0023] In the figure, 1. Hot-rolled U-shaped steel sheet pile; 2. Condenser; 3. Evaporator; 4. Refrigeration compressor; 5. Expansion valve; 6. Circulating fan; 7. Corrosive medium storage tank; 8. Filter; 9. Corrosion-resistant pump; 10. Steam heat exchanger; 11. Agitator; 12. Inlet three-way valve; 13. Outlet three-way valve; 14. Rubber soft sealing cover. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the hot-rolled U-shaped steel sheet pile acute-angle notch accelerated fatigue test medium system device includes a hot-rolled U-shaped steel sheet pile 1, a low-temperature fatigue test system, a seawater corrosion medium system, and a rubber soft sealing cover system;

[0026] The low-temperature fatigue test system includes a condenser 2, an evaporator 3, a refrigeration compressor 4, an expansion valve 5, and a circulating fan 6. The condenser 2, evaporator 3, and refrigeration compressor 4 are all connected by copper pipes. The expansion valve 5 is set on the outer surface of the copper pipe used to connect the condenser 2 and the evaporator 3.

[0027] In this embodiment, the cold air generated by the low-temperature fatigue test system is transported to the rubber soft sealing cover system by the circulating fan 6 to conveniently simulate the low-temperature test of the hot-rolled U-shaped steel sheet pile 1.

[0028] like Figure 1As shown, the seawater corrosive medium system includes a corrosive medium storage tank 7, a filter 8, a corrosion-resistant pump 9 and a steam heat exchanger 10, and the corrosive medium storage tank 7, the filter 8, the corrosion-resistant pump 9 and the steam heat exchanger 10 are all connected through anti-corrosion pipes.

[0029] Specifically, a stirrer 11 extending into the interior of the corrosive medium storage tank 7 is provided on the top of the corrosive medium storage tank 7 . The stirrer 11 is used to stir the corrosive medium in the corrosive medium storage tank 7 evenly.

[0030] In this embodiment, the seawater corrosive medium system can pass the corrosive medium into the rubber soft sealing cover system to conveniently simulate the seawater corrosion test on the hot-rolled U-shaped steel sheet pile 1.

[0031] like Figure 1 As shown, the rubber soft sealing cover system includes an inlet three-way valve 12, an outlet three-way valve 13 and a rubber soft sealing cover 14. The rubber soft sealing cover 14 is arranged on the outer surface of the hot-rolled U-shaped steel sheet pile 1, and the rubber soft sealing cover 14 is connected to the outlet three-way valve 13. The circulating fan 6 is connected to the evaporator 3, and the circulating fan 6 is connected to the rubber soft sealing cover 14 through the inlet three-way valve 12.

[0032] Specifically, one end of the outlet three-way valve 13 is connected to the corrosive medium storage tank 7 through an anti-corrosion pipe, the other end of the outlet three-way valve 13 is connected to the evaporator 3 through a copper pipe, and the steam heat exchanger 10 is connected to the inlet three-way valve 12 through a copper pipe.

[0033] In this embodiment, the rubber soft sealing cover system can wrap the sharp-angled notch of the hot-rolled U-shaped steel sheet pile 1, so that the cold air generated by the low-temperature fatigue test system and the seawater in the seawater corrosion medium system can fully contact the sharp-angled notch of the hot-rolled U-shaped steel sheet pile 1.

[0034] The method of using this utility model is as follows:

[0035] When it is necessary to perform a low-temperature fatigue test on the hot-rolled U-shaped steel sheet pile 1, the low-temperature fatigue test system is started, and the cold air generated by it will be transported to the rubber soft sealing cover 14 by the circulating fan 6, and the simulation of the low-temperature test of the hot-rolled U-shaped steel sheet pile 1 can be started. When it is necessary to perform a corrosion test on the hot-rolled U-shaped steel sheet pile 1, the seawater corrosion medium system is started, and the corrosive medium is passed into the rubber soft sealing cover 14, and the simulation of the seawater corrosion test on the hot-rolled U-shaped steel sheet pile 1 can be started.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A medium system device for an accelerated fatigue test of a hot-rolled U-steel sheet pile with an acute angle notch, characterized by, The utility model relates to a low temperature fatigue test system for hot-rolled U-shaped steel sheet pile, which comprises a hot-rolled U-shaped steel sheet pile (1), a low temperature fatigue test system, a seawater corrosion medium system and a rubber soft sealing cover system. The low temperature fatigue test system comprises a condenser (2), an evaporator (3), a refrigeration compressor (4), an expansion valve (5) and a circulating fan (6). The seawater corrosion medium system comprises a corrosion medium storage tank (7), a filter (8), a corrosion-resistant pump (9) and a steam heat exchanger (10). The rubber soft sealing cover system comprises an inlet three-way valve (12), an outlet three-way valve (13) and a rubber soft sealing cover (14). The condenser (2), the evaporator (3) and the refrigeration compressor (4) are connected by copper pipes, and the expansion valve (5) is arranged on the outer surface of the copper pipe connecting the condenser (2) and the evaporator (3).

2. The hot-rolled U-shaped steel sheet pile acute angle notched accelerated fatigue test medium system apparatus according to claim 1, characterized by, The corrosion medium storage tank (7), the filter (8), the corrosion-resistant pump (9) and the steam heat exchanger (10) are connected by corrosion-resistant pipes.

3. The hot-rolled U-shaped steel sheet pile acute angle notched accelerated fatigue test medium system apparatus according to claim 1, characterized by, The top of the corrosion medium storage tank (7) is provided with a stirrer (11) extending into the interior of the corrosion medium storage tank (7).

4. The hot-rolled U-shaped steel sheet pile acute angle notched accelerated fatigue test medium system apparatus according to claim 1, characterized by The rubber soft sealing cover (14) is arranged on the outer surface of the hot-rolled U-shaped steel sheet pile (1), and the rubber soft sealing cover (14) is connected with the outlet three-way valve (13).

5. The hot-rolled U-shaped steel sheet pile acute angle notched accelerated fatigue test medium system apparatus according to claim 1, characterized by, The circulating fan (6) is connected with the evaporator (3), and the circulating fan (6) is connected with the rubber soft sealing cover (14) through the inlet three-way valve (12).

6. The hot-rolled U-shaped steel sheet pile acute angle notched accelerated fatigue test medium system apparatus according to claim 1, characterized by One end of the outlet three-way valve (13) is connected with the corrosion medium storage tank (7) through a corrosion-resistant pipe, the other end of the outlet three-way valve (13) is connected with the evaporator (3) through a copper pipe, and the steam heat exchanger (10) is connected with the inlet three-way valve (12) through a copper pipe.

7. The hot-rolled U-type steel sheet pile acute angle notch accelerated fatigue test medium system apparatus according to claim 1, characterized by ​

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