Mixed gas corrosion test box

Abstract

The utility model discloses a mixed gas corrosion test box which comprises a test box body, a plurality of gas inlets formed in the top of the right side of the test box body, a gas release opening formed in the bottom of the left side of the test box body, a gas valve mounted on the gas release opening, a mixing box fixedly connected to the outer wall of the right side of the test box body, and a gas inlet box fixedly connected to the outer wall of the left side of the test box body, a plurality of air inlets are formed in the outer side of the air inlet box, air inlet pipes inserted into the air inlets are arranged on the side face, facing the test box body, of the mixing box, an air inlet cavity of the air inlet box is communicated with a mixing cavity of the mixing box through a mixing pipe, and a spiral blade coaxial with the mixing pipe is fixedly connected to the middle of the mixing pipe. According to the mixed gas corrosion test box, various test gases can be fully mixed and then fed into the test box body, so that the test effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test box, concretely relates to a mixed gas corrosion test box. BACKGROUND

[0002] The gas corrosion test box is used for carrying out gas corrosion test on test pieces to test the corrosion resistance of the test pieces in a specified gas environment.

[0003] Chinese patent CN202220450054.8 discloses a multi-gas corrosion test box, which comprises a base, a test box body mounted on the upper surface of the base, a high-concentration test water tank arranged at the inner bottom end of the test box body, a mixing chamber mounted on one side of the test box body, a low-concentration air inlet pipe arranged at the end of the mixing chamber and located on the side surface of the test box body, and a high-concentration air inlet pipe mounted on one side of the test box body.

[0004] In the multi-gas corrosion test box, the air inlet of the low-concentration air inlet pipe and the air inlet of the high-concentration air inlet pipe are mixed by the mixing chamber, and the mixed gas is only mixed once when entering the inside of the test box body, so that the mixing effect is general and the gas corrosion test effect is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a mixed gas corrosion test box, which can fully mix multiple test gases and then send them into a test box body, thereby improving the test effect.

[0006] To achieve the above-mentioned purpose, the utility model provides a mixed gas corrosion test box, which comprises a test box body, a plurality of air inlets arranged on the right top of the test box body, a gas outlet arranged on the left bottom of the test box body, a gas valve mounted on the gas outlet, a mixing box fixedly connected to the right outer wall of the test box body, an air inlet box fixedly connected to the left outer wall of the test box body, a plurality of air inlets arranged on the outside of the air inlet box, an air inlet pipe arranged in the air inlet and facing the side of the test box body, a mixing pipe in communication between the air inlet cavity of the air inlet box and the mixing cavity of the mixing box, and a spiral blade coaxially arranged in the middle of the mixing pipe.

[0007] Preferably, a partition plate is arranged on the top of the test box body, the partition plate divides the inner cavity of the test box body into a gas chamber arranged on the upper part and a test chamber arranged on the lower part, the air inlet pipe is arranged in the gas chamber, a plurality of air holes are arranged on the partition plate, a sealing plate is fixedly connected to the front end of the partition plate, and the upper side, the left side and the right side of the sealing plate are fixedly connected to the inner wall of the test box body.

[0008] Preferably, the front side of the test box is provided with an opening, one side of the opening is hinged with a box door, and the left and right inner walls of the test box are provided with slots extending to the opening, and a rest plate is inserted into the slots.

[0009] Preferably, the rest plate is provided with a plurality of flow holes.

[0010] Preferably, the upper surface of the rest plate is provided with at least one sink.

[0011] Preferably, the sink is provided with a plurality of cross protrusions, the cross protrusions are arranged in a staggered manner with the flow holes, and the height of the cross protrusions is less than the depth of the sink.

[0012] Preferably, the outer side of the box door is provided with a handle, the inner side is provided with a metal plate, and the front side of the test box is embedded with an electromagnet matched with the metal plate.

[0013] According to the above technical scheme, the utility model provides a mixed gas corrosion test box, including test box, the right side top of test box is provided with a plurality of air inlet, the left side bottom of test box is provided with air release, and the air release is installed with air valve, and the right side outer wall of test box is fixed with mixing box, the left side outer wall of test box is fixed with air inlet box, the outer side of air inlet box is provided with a plurality of air inlet, the side of mixing box faces the side of test box and is provided with air inlet pipe, the air inlet cavity of air inlet box and the mixing cavity of mixing box are communicated through mixing pipe, and the middle part of mixing pipe is fixed with spiral blade coaxially arranged.

[0014] The working mode of the mixed gas corrosion test box is as follows: first, place the test piece to be tested in the test box, then connect the gas supply pipe of each test gas to the corresponding air inlet, mix the multiple gases in the air inlet cavity of the air inlet box, mix the first mixed gas in the spiral blade in the mixing pipe for the second time, then mix the second mixed gas in the mixing box for the third time, and finally mix the third mixed gas in the air inlet pipe into the test box. At this time, open the air valve of the air release, discharge the original gas in the test box, then close the air valve, start timing and perform the corrosion test. Through multiple mixing of the test gas, the test gas is more uniformly mixed, so that the test result is more accurate and the test effect is improved.

[0015] Other features and advantages of the utility model will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the technical solutions of the present application, but do not constitute a limitation on the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the mixed gas corrosion test box;

[0018] Figure 2 is Figure 1 is a schematic diagram of the overall structure of the rear side view;

[0019] Figure 3 is a sectional view of a preferred embodiment of the mixed gas corrosion test box;

[0020] Figure 4 is a schematic diagram of the connection structure between the mixing pipe and the mixing box;

[0021] Figure 5 is Figure 4 is a schematic diagram of the bottom view structure;

[0022] Figure 6 is Figure 5 is a schematic diagram of the A-A sectional structure of

[0023] Figure 7 is a schematic diagram of the structure of a preferred embodiment of the shelf plate.

[0024] Explanation of reference signs

[0025] 1-test box body; 2-box door; 3-metal plate; 4-electromagnet; 5-sealing plate; 6-mixing pipe; 7-gas inlet box; 8-gas inlet; 9-mixing box; 10-shelf plate; 11-handle; 12-gas outlet; 13-gas valve; 14-gas inlet cavity; 15-mixing cavity; 16-gas inlet pipe; 17-baffle; 18-gas hole; 19-helical blade; 20-flow hole; 21-cross protrusion; 22-sink groove; 23-insertion slot. DETAILED DESCRIPTION

[0026] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0027] In the present application, unless otherwise stated, the orientation words such as "up and down, left and right, front and back, inside and outside" contained in the terms only represent the orientation of the terms in the conventional use state, or are commonly understood by those skilled in the art, and should not be regarded as a limitation on the terms.

[0028] Reference should be made to Figures 1-7The mixed gas corrosion test box shown includes a test box body 1, a plurality of air inlets 8 are arranged on the right top of the test box body 1, a gas outlet 12 is arranged on the left bottom of the test box body 1, a gas valve 13 is arranged on the gas outlet 12, a mixing box 9 is fixedly connected to the right outer wall of the test box body 1, an air inlet box 7 is fixedly connected to the left outer wall of the test box body 1, a plurality of air inlets 8 are arranged on the outer side of the air inlet box 7, an air inlet pipe 16 arranged in the air inlet 8 is arranged on the side of the mixing box 9 facing the test box body 1, and the air inlet cavity 14 of the air inlet box 7 and the mixing cavity 15 of the mixing box 9 are communicated through a mixing pipe 6, and a spiral blade 19 coaxially arranged in the mixing pipe 6 is fixedly connected to the middle part of the mixing pipe 6.

[0029] Through the above technical scheme, during the test, the test piece to be tested is placed in the test box body 1, then the gas supply pipe of each test gas is connected to the corresponding air inlet 8, the plurality of gases are mixed in the air inlet cavity 14 of the air inlet box 7 first, the gas after the first mixing is mixed for the second time through the spiral blade 19 in the mixing pipe 6, then the gas after the second mixing is mixed for the third time through the mixing box 9, and the gas after the third mixing is finally sent into the test box body 1 through the air inlet pipe 16. At this time, the gas valve 13 of the gas outlet 12 is opened, the original gas in the test box body 1 is discharged, and then the gas valve 13 is closed, and the mixed gas corrosion test is started. Through the multiple mixing of the test gas, the test gas is more uniformly mixed, so that the test result is more accurate, and the test effect is improved.

[0030] In this embodiment, a partition plate 17 is arranged on the top of the test box body 1, the inner cavity of the test box body 1 is divided into a gas chamber arranged in the upper part and a test chamber arranged in the lower part, the air inlet pipe 16 is inserted into the gas chamber, a plurality of air holes 18 are arranged on the partition plate 17, and an enclosing plate 5 is fixedly connected to the front end of the partition plate 17. The upper side, the left side and the right side of the enclosing plate 5 are fixedly connected to the inner wall of the test box body 1. Through such arrangement, the mixed gas can be mixed for the fourth time in the gas chamber after entering the test box body 1, the mixed gas enters the test chamber through the plurality of air holes 18, and the test piece placed in the test chamber is subjected to the mixed gas corrosion test. The enclosing plate 5 can prevent the gas from being discharged from the front side.

[0031] In this embodiment, an open mouth is arranged on the front side of the test box body 1, a box door 2 is hingedly connected to one side of the open mouth, and an insertion slot 23 extending to the open mouth is arranged on the left and right inner walls of the test box body 1. A resting plate 10 is inserted into the insertion slot 23. Through such arrangement, the test piece can be placed in layers, so that a plurality of test pieces can be subjected to the mixed gas corrosion test at the same time. In addition, the resting plate 10 can be inserted into the test chamber from the outside to the inside along the insertion slot 23, so that the resting plate 10 is convenient to disassemble and replace.

[0032] In this embodiment, a plurality of flow holes 20 are arranged on the shelf plate 10. The arrangement of the plurality of flow holes 20 enables the mixed gas to flow downwards through the shelf plate 10 more quickly.

[0033] In this embodiment, at least one sink groove 22 is arranged on the upper surface of the shelf plate 10. The arrangement of the sink groove 22 enables the test piece to be placed more stably, and increases the difficulty of sliding horizontally out of the shelf plate 10.

[0034] In this embodiment, a plurality of cross protrusions 21 are arranged in the sink groove 22, and the cross protrusions 21 are arranged in a staggered manner with the flow holes 20. The height of the cross protrusions 21 is less than the depth of the sink groove 22.

[0035] Through such an arrangement, gaps are formed between adjacent cross protrusions 21, and the mixed gas can flow into the flow holes 20 through the gaps, thereby facilitating the flow of the mixed gas.

[0036] In this embodiment, a handle 11 is arranged on the outer side of the box door 2, and a metal plate 3 is arranged on the inner side. An electromagnet 4 is embedded on the front side of the test box body 1 and cooperates with the metal plate 3 to be attracted. Through such an arrangement, the electromagnet 4 is de-energized, the handle 11 is pulled to open the box door 2, and vice versa. The electromagnet 4 is energized to be attracted to the metal plate 3, thereby closing the box door 2.

[0037] The preferred embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the specific details in the above-described embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to various simple modifications, and these simple modifications all belong to the protection scope of the present application.

[0038] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present application will not describe various possible combination manners again.

[0039] In addition, various different embodiments of the present application can also be combined in any manner, as long as they do not deviate from the technical concept of the present application, and they should also be considered as disclosed contents of the present application.

Claims

1. A mixed gas corrosion test chamber, characterized in that: The invention comprises a test box (1), wherein a plurality of air inlets (8) are provided on the top right side of the test box (1), an air release port (12) is provided on the bottom left side of the test box (1), an air valve (13) is installed on the air release port (12), a mixing box (9) is fixedly connected to the right outer wall of the test box (1), an air intake box (7) is fixedly connected to the left outer wall of the test box (1), a plurality of air inlets (8) are provided on the outer side of the air intake box (7), an air intake pipe (16) inserted into the air inlet (8) is provided on the side of the mixing box (9) facing the test box (1), an air intake chamber (14) of the air intake box (7) and a mixing chamber (15) of the mixing box (9) are connected through a mixing pipe (6), and a spiral blade (19) coaxially arranged therewith is fixedly connected to the middle part of the mixing pipe (6).

2. The mixed gas corrosion test chamber according to claim 1, characterized in that: A partition (17) is provided on the top of the test box (1), and the partition (17) divides the inner cavity of the test box (1) into an air chamber provided at the upper part and a test chamber provided at the lower part. The air inlet pipe (16) is inserted into the air chamber. A plurality of air holes (18) are provided on the partition (17). A sealing plate (5) is fixed to the front end of the partition (17), and the upper side, left side and right side of the sealing plate (5) are fixed to the inner wall of the test box (1).

3. The mixed gas corrosion test chamber according to claim 1, characterized in that: The front side of the test box (1) is provided with an opening, a door (2) is hinged on one side of the opening, and slots (23) extending to the opening are provided on the left and right inner walls of the test box (1), and a shelf (10) is inserted into the slots (23).

4. The mixed gas corrosion test chamber according to claim 3, characterized in that: The shelf plate (10) is provided with a plurality of flow holes (20).

5. The mixed gas corrosion test chamber according to claim 4, characterized in that: The upper surface of the shelf plate (10) is provided with at least one sinking groove (22).

6. The mixed gas corrosion test chamber according to claim 5, characterized in that: A plurality of cross protrusions (21) are provided in the sink (22), the cross protrusions (21) and the flow holes (20) are staggered, and the height of the cross protrusions (21) is less than the depth of the sink (22).

7. The mixed gas corrosion test chamber according to claim 3, characterized in that: The outer side of the box door (2) is provided with a handle (11), and the inner side is provided with a metal plate (3); the front side of the test box body (1) is embedded with an electromagnet (4) that cooperates with the metal plate (3) for attraction.

Images