Device and method for detecting sealing performance and pressure resistance based on quartz thermal insulation pipe

Abstract

The invention relates to the technical field of quartz product detection equipment, in particular to a sealing performance and pressure resistance detection device and method based on a quartz heat preservation pipe, the quartz heat preservation pipe is cylindrical, and a first connector and a second connector which are communicated with the interior are formed in the side face of the quartz heat preservation pipe. The workbench is provided with a containing cavity used for containing a quartz heat preservation pipe. One end of the water inlet pipe is connected with the first connector, and the other end is externally connected with a water source; one end of the drainage pipe is connected with the second interface, and the other end is provided with a drainage valve; one end of the pressure test air inlet pipe is connected with the water inlet pipe, and the other end is externally connected with an air source; the first pressure gauge is used for detecting the pressure in the water inlet pipe; the end, connected with the water source, of the water inlet pipe is further provided with a main water inlet valve, and the end, connected with the air source, of the pressure test air inlet pipe is further provided with a pressure test air inlet valve.

Description

Technical Field

[0001] The present invention relates to the technical field of quartz product testing equipment, and more specifically, to a sealing and pressure resistance testing device and a testing method based on a quartz insulation tube. Background Art

[0002] According to market demand, the quartz insulation tube must have qualified sealing and pressure resistance under a pressure of at least 0.8Mpa. However, there is no special equipment for the pressure test of insulation tubes. Only a simple pressure test device composed of pressure test pumps, pressure gauges, cut-off valves and other components is used. The operation of the device is complicated, and the water in the insulation tube is difficult to handle after the pressure test. It needs to be poured out slowly by hand, which not only affects the on-site environment, but also easily contaminates the product. Summary of the invention

[0003] The main purpose of the present invention is to provide a detection device and a detection method that are easy to use so as to solve the technical problems mentioned in the background technology.

[0004] In order to solve the above technical problems, on the one hand, a sealing and pressure resistance detection device based on a quartz insulation tube is proposed. The quartz insulation tube is cylindrical, and a first interface and a second interface leading to the inside are arranged on its side. The detection device includes:

[0005] A rack, wherein a workbench of the rack is provided with a placement cavity for placing a quartz insulation tube;

[0006] A water inlet pipe, one end of which is used to be connected to the first interface, and the other end of which is used to be connected to an external water source;

[0007] A drain pipe, one end of which is used to be connected to the second interface, and the other end of which is provided with a drain valve;

[0008] The pressure test air inlet pipe has one end connected to the water inlet pipe and the other end used to connect to an external air source;

[0009] and a first pressure gauge, used for detecting the pressure in the water inlet pipe;

[0010] Among them, a main water inlet valve is also arranged at one end of the water inlet pipe connected to the water source, and a test pressure inlet valve is also arranged at one end of the test pressure inlet pipe connected to the air source.

[0011] In the above technical solution, further, a first three-way valve is provided on the water inlet pipe behind the main water inlet valve, and the pressure test air inlet pipe is connected to the water inlet pipe through the first three-way valve.

[0012] In any of the above technical solutions, further, a second three-way valve located behind the first three-way valve is provided on the water inlet pipe, and the first pressure gauge is connected to the water inlet pipe through the second three-way valve.

[0013] In any of the above technical solutions, further, a water inlet valve located between the first three-way valve and the second three-way valve is provided on the water inlet pipe, and a third three-way valve located between the first three-way valve and the water inlet valve is also provided on the water inlet pipe, and a second pressure gauge is connected to the third three-way valve.

[0014] In any of the above technical solutions, further, it also includes: a drainage air inlet pipe, one end of which is connected to the water inlet pipe, and the other end of which is provided with a drainage air inlet valve;

[0015] The drainage air inlet pipe is connected to the water inlet pipe via a fourth three-way valve, and the fourth three-way valve is located behind the second three-way valve.

[0016] In any of the above technical solutions, further, it also includes: a protective cover, which is detachably arranged on the placement cavity on the workbench and is used to cover the quartz insulation tube.

[0017] On the other hand, a method for testing the sealing and pressure resistance of a quartz insulation tube is also proposed. The above-mentioned testing device is used for testing. The testing method is divided into a water pressure test and an air pressure test. The water pressure test is as follows:

[0018] S1. Place the quartz insulation tube in the placement cavity on the workbench of the rack;

[0019] S2. Connect the water inlet pipe to the first interface through a pipe joint, connect the water outlet pipe to the second interface, and then cover with a protective cover;

[0020] S3, open the main water inlet valve and the drain valve to allow the water in the water source to flow into the quartz insulation tube. After the gas in the quartz insulation tube is discharged, close the drain valve, and then continue to add water to pressurize. After the value on the first pressure gauge reaches 0.8Mpa, close the water inlet valve and the main water inlet valve. After a certain period of time, if there is no obvious difference on the first pressure gauge, the pressure resistance and sealing performance of the quartz insulation tube are qualified;

[0021] S4. Open the drain valve and the drain air inlet valve to perform drainage operations. After completion, close the drain air inlet valve and the drain valve in sequence, unscrew the pipe joint and remove the protective cover, take out the quartz insulation tube and blow it dry;

[0022] The ventilation pressure test is as follows:

[0023] S1. Place the quartz insulation tube in the placement cavity on the workbench of the rack;

[0024] S2. Connect the water inlet pipe to the first interface through a pipe joint, connect the water outlet pipe to the second interface, and then cover with a protective cover;

[0025] S3, open the main air inlet valve and the water inlet valve, and when the value on the first pressure gauge reaches 0.8Mpa, close the water inlet valve and the main air inlet valve in sequence. If there is no obvious pressure difference change on the first pressure gauge after a period of time, the pressure resistance and sealing performance of the quartz insulation tube are qualified;

[0026] S4. Open the drain valve to perform exhaust operation. After completion, close the drain valve, unscrew the pipe joint, remove the protective cover, take out the quartz insulation tube and blow it dry.

[0027] Beneficial effects: Compared with the prior art, the device can perform pressure tests using water or gas to determine whether the pressure resistance and sealing performance of the quartz insulation tube are intact, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural diagram of a quartz insulation tube;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0032] The following are the descriptions of the reference numerals:

[0033] 100. Quartz insulation tube; 101. First interface; 102. Second interface; 1. Rack; 2. Water inlet pipe; 21. Water source; 22. Main water inlet valve; 23. First three-way valve; 24. Second three-way valve; 25. Water inlet valve; 26. Third three-way valve; 27. Second pressure gauge; 3. Drain pipe; 31. Drain valve; 4. Test pressure inlet pipe; 41. Air source; 42. Test pressure inlet valve; 5. First pressure gauge; 6. Drain inlet pipe; 61. Drain inlet valve; 62. Fourth three-way valve; 7. Protective cover. DETAILED DESCRIPTION

[0034] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0036] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The present invention proposes a sealing and pressure resistance detection device and detection method based on a quartz insulation tube. The device can perform pressure tests in water and gas to determine whether the pressure resistance and sealing performance of the quartz insulation tube are intact, and the operation is simple. Among them, if gas detection is used, there is no need to consider the problem of pressure test medium treatment, and it is clean and tidy; if water detection is used, the moisture in the tube can be removed by ventilation, and the operation is time-saving and efficient.

[0040] The following embodiments will be used to describe in detail a sealing and pressure resistance detection device and a detection method based on a quartz insulation tube of the present application.

[0041] Embodiment 1:

[0042] like Figure 1-Figure 3 As shown, the quartz insulation tube 100 is cylindrical, and a first interface 101 and a second interface 102 leading to the interior are arranged on its outer wall. There are multiple pipes with both ends passing through the interior. The insulation medium is transported into the first interface 101 and then output from the second interface 102 to achieve insulation of the pipe.

[0043] The present embodiment proposes a sealing and pressure resistance detection device based on a quartz insulation tube, comprising: a frame 1, a workbench of which is provided with a placement cavity for placing the quartz insulation tube; a water inlet pipe 2, one end of which is used to be connected to a first interface, and the other end is used to be connected to an external water source 21; a drain pipe 3, one end of which is used to be connected to a second interface, and the other end is provided with a drain valve 31; a pressure test air inlet pipe 4, one end of which is connected to the water inlet pipe 2, and the other end is used to be connected to an external air source 41; and a first pressure gauge 5, used to detect the pressure in the water inlet pipe 2;

[0044] Among them, a main water inlet valve 22 is also provided at one end of the water inlet pipe 2 connected to the water source 21 , and a test pressure inlet valve 42 is also provided at one end of the test pressure inlet pipe 4 connected to the air source 41 .

[0045] In view of the inconvenient operation problems of existing detection devices, this embodiment is provided with a frame 1, and then a placement cavity for accommodating a quartz insulation tube is provided on the frame 1. The quartz insulation tube is placed horizontally in the placement cavity, and then gas or liquid is delivered to the first interface to detect its sealing and pressure resistance.

[0046] Specifically, the first interface is connected to the water inlet pipe 2, the second interface is connected to the water outlet pipe, the water inlet pipe 2 is connected to the water source 21, the water source 21 can be an electric pressure test pump, the pump is used to inject high-pressure water into the water inlet pipe 2, and then the first pressure gauge 5 detects the pressure of the water inlet pipe 2. When the pressure in the water inlet pipe 2 can reach the set pressure value and the pressure value remains unchanged, it means that the sealing and pressure resistance of the tested quartz insulation tube are qualified, otherwise it is unqualified. The device has a simple structure and is easy to operate.

[0047] In this embodiment, it should be noted that a first three-way valve 23 located behind the main water inlet valve 22 is provided on the water inlet pipe 2 , and the test pressure air inlet pipe 4 is connected to the water inlet pipe 2 through the first three-way valve 23 .

[0048] The water inlet pipe 2 is provided with a second three-way valve 24 located behind the first three-way valve 23 , and the first pressure gauge 5 is connected to the water inlet pipe 2 via the second three-way valve 24 .

[0049] The first three-way valve 23 and the second three-way valve 24 are provided to facilitate the installation of the pressure test intake pipe 4 and the first pressure gauge 5 .

[0050] Embodiment 2:

[0051] This embodiment is a further improvement made on the basis of the first embodiment.

[0052] like Figure 3 As shown, in this embodiment, a water inlet valve 25 located between the first three-way valve 23 and the second three-way valve 24 is also provided on the water inlet pipe 2, and a third three-way valve 26 located between the first three-way valve 23 and the water inlet valve 25 is also provided on the water inlet pipe 2, and a second pressure gauge 27 is connected to the third three-way valve 26.

[0053] The water inlet valve 25 and the second pressure gauge 27 are provided to detect the water pressure output by the electric pressure test pump, so as to avoid misjudgment of the quartz insulation tube when the water pressure generated by the electric pressure test pump is insufficient, and mistakenly believe that the quartz insulation tube is not sealed enough.

[0054] Specifically, first open the main water inlet valve 22, the electric pressure test pump will deliver water to the position of the water inlet valve 25, at this time the second pressure gauge 27 will detect the delivery water pressure of the electric pressure test pump, when the value detected by the second pressure gauge 27 can reach the set threshold value, it indicates that the electric pressure test pump has the ability to increase pressure, then open the water inlet valve 25, so that water flows to the quartz insulation tube through the first interface, and then flows out from the second interface, after the water can flow out from the outlet pipe, it means that most of the water is stored in the quartz insulation tube, and there may be a small amount of air, at this time the electric The dynamic pressure test pump continues to deliver water. When the value on the first pressure gauge 5 no longer changes, it indicates that the gas in the quartz insulation tube is completely discharged. Then the drain valve 31 is closed, and the value of the first pressure gauge 5 will gradually increase. When it reaches the set threshold, the water inlet valve 25 is closed to maintain the pressure of the quartz insulation tube. After a certain period of time, if the value on the first pressure gauge 5 does not change, it indicates that the pressure resistance and sealing performance of the quartz insulation tube are qualified; conversely, if the value becomes smaller, it indicates that the pressure resistance and sealing performance of the quartz insulation tube are unqualified.

[0055] Embodiment three:

[0056] This embodiment is a further improvement made on the basis of the first embodiment.

[0057] like Figure 3 As shown, in this embodiment, it also includes: a drainage air inlet pipe 6, one end of which is connected to the water inlet pipe 2, and the other end is provided with a drainage air inlet valve 61;

[0058] The drainage air inlet pipe 6 is connected to the water inlet pipe 2 via a fourth three-way valve 62 , and the fourth three-way valve 62 is located behind the second three-way valve 24 .

[0059] After the water pressure test, the interior of the quartz insulation tube is filled with a large amount of water. After closing the water inlet valve 25 and opening the drain valve 31, part of the water in the quartz insulation tube will flow out, and the remaining small part cannot be discharged by itself. Therefore, a drainage air inlet pipe 6 is provided. By opening the drainage air inlet valve 61, gas enters the drainage air inlet pipe 6, and the remaining water in the quartz insulation tube is discharged by pressure. Of course, a certain amount of water will remain on the inner wall of the quartz insulation tube. After the quartz insulation tube is removed, it can be dried by injecting high-temperature gas into it.

[0060] Embodiment 4:

[0061] This embodiment is a further improvement made on the basis of the first embodiment.

[0062] like Figure 2 As shown, in this embodiment, it also includes: a protective cover 7, which is detachably arranged on the placement cavity on the workbench and is used to cover the quartz insulation tube.

[0063] The protective cover 7 is provided to provide protection to prevent the quartz insulation tube being tested from being broken due to high air pressure when it is unqualified, resulting in fragments splashing, or water leaking from the quartz insulation tube and spilling on the staff.

[0064] Embodiment five:

[0065] This embodiment proposes a method for testing the sealing and pressure resistance of a quartz insulation tube. The detection device in the above embodiment is used for detection. The detection method is divided into a water pressure test and an air pressure test. The water pressure test is as follows:

[0066] S1, placing the quartz insulation tube in the placement cavity on the workbench of rack 1;

[0067] S2, connect the water inlet pipe 2 to the first interface through a pipe joint, connect the water outlet pipe to the second interface, and then cover the protective cover 7;

[0068] S3, open the main water inlet valve 22, the water inlet valve 25 and the drain valve 31, so that the water in the water source 21 flows into the quartz insulation tube. After the gas in the quartz insulation tube is exhausted, close the drain valve 31, and then continue to add water to pressurize. After the value on the first pressure gauge 5 reaches 0.8Mpa, close the water inlet valve 25 and the main water inlet valve 22. After a certain period of time, if there is no obvious difference on the first pressure gauge 5, the pressure resistance and sealing performance of the quartz insulation tube are qualified;

[0069] S4, open the drain valve 31 and the drain air inlet valve 61 to perform drainage operation, and after completion, close the drain air inlet valve 61 and the drain valve 31 in sequence, unscrew the pipe joint and remove the protective cover 7, take out the quartz insulation tube and blow it dry;

[0070] The ventilation pressure test is as follows:

[0071] S1, placing the quartz insulation tube in the placement cavity on the workbench of rack 1;

[0072] S2, connect the water inlet pipe 2 to the first interface through a pipe joint, connect the water outlet pipe to the second interface, and then cover the protective cover 7;

[0073] S3, open the main air inlet valve and the water inlet valve 25, and when the value on the first pressure gauge 5 reaches 0.8Mpa, close the water inlet valve 25 and the main air inlet valve in sequence. If there is no obvious pressure difference change on the first pressure gauge 5 after a period of time, the pressure resistance and sealing performance of the quartz insulation tube are qualified;

[0074] S4, open the drain valve 31 to perform exhaust operation, close the drain valve 31 after completion, unscrew the pipe joint, remove the protective cover 7, take out the quartz insulation tube and blow it dry.

[0075] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A sealing and pressure resistance detection device based on a quartz insulation tube, wherein the quartz insulation tube is cylindrical, and a first interface and a second interface leading to the inside are arranged on its side, characterized in that: The detection device comprises: A frame (1) having a workbench with a placement cavity for placing a quartz insulation tube; A water inlet pipe (2), one end of which is used to be connected to the first interface, and the other end of which is used to be connected to an external water source (21); A drainage pipe (3), one end of which is used to be connected to the second interface, and the other end of which is provided with a drainage valve (31); A pressure test air inlet pipe (4), one end of which is connected to the water inlet pipe (2) and the other end of which is used to connect to an external air source (41); and a first pressure gauge (5) for detecting the pressure in the water inlet pipe (2); The end of the water inlet pipe (2) connected to the water source (21) is also provided with a main water inlet valve (22), and the end of the test pressure air inlet pipe (4) connected to the air source (41) is also provided with a test pressure air inlet valve (42).

2. The sealing and pressure resistance detection device based on the quartz insulation tube according to claim 1 is characterized in that: The water inlet pipe (2) is provided with a first three-way valve (23) located behind the main water inlet valve (22), and the pressure test air inlet pipe (4) is connected to the water inlet pipe (2) via the first three-way valve (23).

3. The sealing and pressure resistance detection device based on the quartz insulation tube according to claim 2 is characterized in that: The water inlet pipe (2) is provided with a second three-way valve (24) located behind the first three-way valve (23), and the first pressure gauge (5) is connected to the water inlet pipe (2) via the second three-way valve (24).

4. The sealing and pressure resistance detection device based on the quartz insulation tube according to claim 3 is characterized in that: The water inlet pipe (2) is also provided with a water inlet valve (25) located between the first three-way valve (23) and the second three-way valve (24); the water inlet pipe (2) is also provided with a third three-way valve (26) located between the first three-way valve (23) and the water inlet valve (25); the third three-way valve (26) is connected to a second pressure gauge (27).

5. The sealing and pressure resistance detection device based on the quartz insulation tube according to claim 4 is characterized in that: Also includes: A drainage air inlet pipe (6), one end of which is connected to the water inlet pipe (2) and the other end of which is provided with a drainage air inlet valve (61); The drainage air inlet pipe (6) is connected to the water inlet pipe (2) via a fourth three-way valve (62), and the fourth three-way valve (62) is located behind the second three-way valve (24).

6. The sealing and pressure resistance detection device based on the quartz insulation tube according to any one of claims 1 to 5, characterized in that: Also includes: A protective cover (7) is detachably arranged on the placement cavity on the workbench and is used to cover the quartz insulation tube.

7. A method for detecting the sealing and pressure resistance of a quartz insulation tube, characterized in that: The detection device according to claim 6 is used for detection, and the detection method is divided into water pressure test and air pressure test, wherein the water pressure test is as follows: S1, placing the quartz insulation tube in a placement cavity on a workbench of a rack (1); S2, connecting the water inlet pipe (2) to the first interface through a pipe joint, connecting the water outlet pipe to the second interface, and then covering with a protective cover (7); S3, open the main water inlet valve (22) and the drain valve (31), so that the water in the water source (21) flows into the quartz insulation tube. After the gas in the quartz insulation tube is exhausted, close the drain valve (31), and then continue to add water to increase the pressure. After the value on the first pressure gauge (5) reaches 0.8Mpa, close the water inlet valve (25) and the main water inlet valve (22). After a certain period of time, if there is no obvious difference on the first pressure gauge (5), the pressure resistance and sealing performance of the quartz insulation tube are qualified; S4, open the drain valve (31) and the drain air inlet valve (61) to perform drainage operation, and after completion, close the drain air inlet valve (61) and the drain valve (31) in sequence, unscrew the pipe joint and remove the protective cover (7), take out the quartz insulation tube and blow it dry; The ventilation pressure test is as follows: S1, placing the quartz insulation tube in a placement cavity on a workbench of a rack (1); S2, connecting the water inlet pipe (2) to the first interface through a pipe joint, connecting the water outlet pipe to the second interface, and then covering with a protective cover (7); S3, open the main air inlet valve and the water inlet valve (25), and after the value on the first pressure gauge (5) reaches 0.8Mpa, close the water inlet valve (25) and the main air inlet valve in sequence. If there is no obvious pressure difference change on the first pressure gauge (5) after a period of time, the pressure resistance and sealing performance of the quartz insulation tube are qualified; S4, open the drain valve (31) to perform exhaust operation, close the drain valve (31) after completion, unscrew the pipe joint and remove the protective cover (7), take out the quartz insulation tube and blow it dry.

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