Crystallizer pressure testing device

Abstract

The utility model provides a crystallizer pressure testing device, which comprises a pressure testing pump, a first control valve, a high-pressure liquid inlet pipe, a water distribution box, a second control valve, a high-pressure liquid outlet pipe, a crystallizer water tank, a first pressure gauge, a second pressure gauge, a first connecting pipe, a second connecting pipe and an exhaust mechanism, the first pressure gauge is connected with the liquid inlet end of the high-pressure liquid inlet pipe; the second pressure gauge is connected with the liquid outlet end of the water distribution box; the first connecting pipe is fixedly installed on the crystallizer water tank and used for being connected with the end, away from the water distribution tank, of the high-pressure liquid outlet pipe. The second connecting pipe is fixedly mounted on the crystallizer water tank, and an exhaust hole is formed in the second connecting pipe; the utility model can solve the problem that the final water pressure test result can be directly influenced because the crystallizer water tank is not provided with an exhaust device for exhausting the air remained in the crystallizer water tank when the water is injected into the crystallizer water tank by the pressure test device in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure testing and detection, in particular to a crystallizer pressure testing device. Background Art

[0002] In the steelmaking production of the metallurgical industry, the slab crystallizer is an important part of the steelmaking continuous casting machine. The prepared crystallizer must be subjected to a hydraulic pressure test to check whether the water tank and the water spray are unobstructed and whether there is water leakage. Those that fail the test must be dealt with in a timely manner to ensure the integrity of the crystallizer. If there is water leakage in the water tank or nozzle, it will cause steel leakage, insufficient water pressure in the crystallizer, and molten steel in the crystallizer. In winter, due to the cold weather, water will accumulate in the water tank and the nozzle pipeline, causing accidents such as crystallizer freezing, affecting normal production.

[0003] The utility model with publication number CN203371013U discloses a crystallizer pressure test device, which is referred to as: prior art 1), including a crystallizer water tank, a drain pipe, a nozzle, a nozzle pipeline, a water tank pipeline, a nozzle valve, a water tank valve, a pressure gauge, an air inlet pipe, a main water inlet pipe and a water distribution bag, the water distribution bag is respectively connected to the pressure gauge, the air inlet pipe and the main water inlet pipe, the crystallizer water tank and the water distribution bag are connected through the water tank pipeline, a water tank valve is provided on the water tank pipeline, one end of the nozzle pipeline is connected to the water distribution bag, and the other end is provided with a nozzle, the nozzle pipeline is provided with a nozzle valve, and the crystallizer water tank is provided with a drain pipe.

[0004] Although the prior art 1 provides a crystallizer pressure test device with simple results and convenient operation, the prior art 1 does not have an exhaust device for exhausting the crystallizer water tank. When the pressure test device in the prior art 1 is filling the crystallizer water tank with water, the air retained in the crystallizer water tank will directly affect the final water pressure test result. Utility Model Content

[0005] The utility model aims to provide a crystallizer pressure test device, which, in actual use, can solve the problem that when the pressure test device in the prior art is filling the crystallizer water tank with water, the crystallizer water tank is not provided with an exhaust device for discharging the air retained in the crystallizer water tank, which will directly affect the final water pressure test result.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A crystallizer pressure test device, comprising a pressure test pump, a first control valve, a high-pressure liquid inlet pipe, a water distribution tank, a second control valve, a high-pressure liquid outlet pipe and a crystallizer water tank connected in sequence, and also comprising:

[0008] A first pressure gauge connected to a liquid inlet end of the high-pressure liquid inlet pipe;

[0009] A second pressure gauge connected to the liquid outlet of the water distribution tank;

[0010] A first connecting pipe, the first connecting pipe is fixedly mounted on the crystallizer water tank, and the first connecting pipe is used to connect with an end of the high-pressure liquid outlet pipe away from the water distribution tank;

[0011] A second connecting pipe, the second connecting pipe is fixedly mounted on the crystallizer water tank, and an exhaust hole is provided on the second connecting pipe;

[0012] The exhaust mechanism is installed in the second connecting pipe and is used to exhaust the air retained in the crystallizer water tank.

[0013] Preferably, the exhaust mechanism includes a cone sleeve, a sealing assembly and a sleeve, the sleeve is fixedly connected to the top end of the second connecting pipe, the cone sleeve is fixedly connected to the bottom end of the second connecting pipe, the sealing assembly is threadedly connected in the sleeve and is used to seal the second connecting pipe after cooperating with the cone sleeve.

[0014] Preferably, the plugging assembly includes a threaded rod, a plugging head and a spring. The threaded rod is threadedly connected in the sleeve, the plugging head is fixedly connected to one end of the threaded rod close to the cone sleeve, and the spring is sleeved on the threaded rod and arranged between the sleeve and the plugging head.

[0015] Preferably, one end of the threaded rod away from the tapered sleeve is connected to a rotating block.

[0016] Preferably, the plugging head is a truncated cone structure.

[0017] Preferably, a boss for contacting the surface of the cone sleeve is fixedly connected to the plugging head.

[0018] Preferably, the exhaust hole is connected with an overflow pipe.

[0019] Preferably, the water distribution tank is provided with a plurality of water outlets, and each water outlet is installed with the second control valve.

[0020] Preferably, a joint is connected to one end of the high-pressure liquid outlet pipe away from the water distribution tank, and the high-pressure liquid outlet pipe is connected to the first connecting pipe through the joint; a sealing part is fixedly connected to the joint, and a sealing groove is provided on the sealing part, and the sealing part is used to seal the gap between the first connecting pipe and the joint.

[0021] Preferably, a sealing ring is provided in the sealing groove.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In the utility model, when it is necessary to measure the pressure of the crystallizer, the high-pressure liquid outlet pipe is first connected to the first connecting pipe, the first control valve is opened and the second control valve is closed; the pressure test pump is started so that the pressure test pump pumps the test water into the water distribution tank through the high-pressure liquid inlet pipe and fills the water distribution tank. The water distribution tank can be used as a buffer structure to make the pressure provided by the pressure test pump more stable; the water distribution tank can be tested by observing the reading of the first pressure gauge;

[0024] After the water distribution tank is filled and tested, open the second control valve to allow the test water in the water distribution tank to enter the crystallizer water tank. Open the exhaust mechanism installed on the crystallization water tank to discharge the gas retained in the crystallizer water tank. After the water overflows from the exhaust mechanism, the gas in the crystallizer water tank is completely discharged. At this time, observe the reading of the second pressure gauge. When all pipelines reach the predetermined pressure value, close the first control valve and the pressure test pump and maintain the pressure for half an hour. If the pressure on the second pressure gauge decreases, it means that there is a leak in the crystallizer water tank and maintenance is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model 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 paying creative work.

[0026] Figure 1 It is a schematic diagram of the connection relationship between the exhaust mechanism and the crystallizer water tank in the utility model.

[0027] Figure 2 It is a structural schematic diagram of the utility model.

[0028] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 101-pressure test pump, 102-first control valve, 103-high-pressure liquid inlet pipe, 104-water distribution tank, 105-second control valve, 106-high-pressure liquid outlet pipe, 107-crystallizer water tank, 108-first pressure gauge, 109-second pressure gauge, 110-first connecting pipe, 111-second connecting pipe, 112-exhaust mechanism, 113-cone sleeve, 114-sealing assembly, 115-sleeve, 116-threaded rod, 117-sealing head, 118-spring, 119-rotating block, 120-overflow pipe, 121-connector, 122-sealing part, 123-sealing ring. DETAILED DESCRIPTION

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0035] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1

[0039] See also Figure 1-Figure 3 This embodiment discloses a crystallizer pressure test device, including a pressure test pump 101, a first control valve 102, a high-pressure liquid inlet pipe 103, a water distribution tank 104, a second control valve 105, a high-pressure liquid outlet pipe 106 and a crystallizer water tank 107 connected in sequence, and also includes:

[0040] A first pressure gauge 108, the first pressure gauge 108 is connected to the liquid inlet end of the high-pressure liquid inlet pipe 103;

[0041] A second pressure gauge 109, which is connected to the liquid outlet of the water distribution tank 104;

[0042] A first connecting pipe 110, which is fixedly mounted on the crystallizer water tank 107, and is used to connect to an end of the high-pressure liquid outlet pipe 106 away from the water distribution tank 104;

[0043] A second connecting pipe 111, which is fixedly mounted on the crystallizer water tank 107, and is provided with an exhaust hole;

[0044] The exhaust mechanism 112 is installed in the second connecting pipe 111 and is used to exhaust the air retained in the crystallizer water box 107.

[0045] In the present invention, the first connecting pipe 110 and the second connecting pipe 111 are connected to the crystallizer water tank 107. When the crystallizer needs to be pressure-measured, the high-pressure liquid outlet pipe 106 is first connected to the first connecting pipe, and then the first control valve 102 is opened and the second control valve 105 is closed; the pressure test pump 101 is started so that the pressure test pump 101 pumps the test water into the water distribution tank 104 through the high-pressure liquid inlet pipe 103 and fills the water distribution tank 104. The water distribution tank 104 can be used as a buffer structure to make the pressure provided by the pressure test pump 101 more stable; observe the reading of the first pressure gauge 108. When the pressure of the high-pressure liquid inlet pipe 103 reaches a predetermined pressure value, first close the first control valve 102 and the pressure test pump 101 to maintain the pressure. If the first pressure value is observed to decrease, there is a leak in the water distribution tank 104 and maintenance is required; the water distribution tank 104 is provided with an exhaust hole that can be opened or closed. The exhaust hole is used to exhaust the air in the water distribution tank 104; the water distribution tank 104 and the crystallizer water tank 107 are both provided with drain valves, and the test water can be discharged by opening the drain valve after the test is completed; after the water distribution tank 104 is filled and tested, the second control valve 105 is opened to allow the test water in the water distribution tank 104 to enter the crystallizer water tank 107, and the exhaust mechanism 112 installed on the crystallization water tank is opened to discharge the gas retained in the crystallizer water tank 107. After the water overflows from the exhaust mechanism 112, the gas in the crystallizer water tank 107 is completely discharged; at this time, the exhaust mechanism 112 is closed and the reading of the second pressure gauge 109 is observed. When all pipelines reach the predetermined pressure value, the first control valve 102 and the pressure test pump 101 are closed and the pressure is maintained for half an hour. If the pressure of the second pressure gauge 109 is observed to decrease, it means that there is a leak in the crystallizer water tank 107 and maintenance is required.

[0046] Specifically, the exhaust mechanism 112 includes a cone sleeve 113, a sealing assembly 114 and a sleeve 115. The sleeve 115 is fixedly connected to the top end of the second connecting pipe 111, the cone sleeve 113 is fixedly connected to the bottom end of the second connecting pipe 111, and the sealing assembly 114 is threadedly connected in the sleeve 115 and is used to seal the second connecting pipe 111 after cooperating with the cone sleeve 113. The plugging component 114 is used to plug the opening provided on the cone sleeve 113, open the second control valve 105 to allow the detection liquid in the water distribution tank 104 to enter the crystallizer water tank 107 through the high-pressure liquid outlet pipe 106, and the detection liquid squeezes the air in the crystallizer water tank 107; rotate the plugging component 114 threadedly connected in the sleeve 115 so that the plugging component 114 moves upward and separates from the cone sleeve 113, and the gas in the crystallizer water tank 107 is discharged through the opening provided on the cone sleeve 113 and then discharged to the outside of the second connecting pipe 111 through the exhaust hole provided on the connecting part; when part of the detection liquid overflows the second connecting pipe 111 from the exhaust hole, reverse the plugging component 114 so that the plugging component 114 blocks the cone tube, so that only pressurized crystallization water exists in the crystallization water tank.

[0047] Specifically, the sealing assembly 114 includes a threaded rod 116, a sealing head 117 and a spring 118. The threaded rod 116 is threadedly connected in the sleeve, the sealing head 117 is fixedly connected to one end of the threaded rod 116 close to the conical sleeve 113, and the spring 118 is sleeved on the threaded rod 116 and arranged between the sleeve 115 and the sealing head 117. After the detection liquid squeezes the air in the crystallizer water tank 107, the threaded rod 116 threadedly connected in the sleeve 115 is rotated so that the threaded rod 116 drives the plugging head 117 to move upward and then separate from the cone sleeve 113. At this time, the spring 118 arranged between the plugging head 117 and the sleeve 115 is compressed. By setting the spring 118, friction and wear between the plugging head 117 and the sleeve 115 can be avoided; the gas in the crystallizer water tank 107 is discharged through the opening arranged on the cone sleeve 113 and then discharged to the outside of the second connecting pipe 111 through the exhaust hole arranged on the connecting part; when part of the detection liquid overflows the second connecting pipe 111 from the exhaust hole, the reverse threaded rod 116 drives the plugging head 117 to move downward to block the cone tube, so that only pressurized crystallization water exists in the crystallization water tank. The spring 118 in the utility model is a conventional elastic part made of stainless steel.

[0048] Specifically, one end of the threaded rod 116 away from the cone sleeve 113 is connected with a rotating block 119. By providing the rotating block 119, it is convenient to rotate the threaded rod 116 so that the plugging head 117 can move up and down.

[0049] Specifically, the plugging head 117 is a truncated cone structure. By making the plugging head 117 a truncated cone structure, it is convenient to plug the opening provided on the cone sleeve 113 after the plugging head 117 cooperates with the cone sleeve 113.

[0050] Specifically, a boss for contacting the surface of the cone sleeve 113 is fixedly connected to the plugging head 117. When the plugging head 117 plugs the opening provided on the cone sleeve 113, the boss contacts the surface of the cone sleeve 113; by providing the boss, the contact area between the plugging head 117 and the surface of the cone sleeve 113 can be increased while limiting the plugging head 117, thereby preventing the detection liquid from seeping out through the gap between the plugging head 117 and the cone sleeve 113.

[0051] Specifically, the exhaust hole is connected with an overflow pipe 120. The overflow pipe 120 is fixedly installed in the exhaust hole and communicated with the second connecting pipe 111. By providing the overflow pipe 120, the gas in the crystallizer water tank 107 can be discharged to the outside of the second connecting pipe 111 through the overflow pipe 120. After the operator observes that the detection liquid enters the overflow pipe 120, the exhaust mechanism 112 can be closed, thereby avoiding the problem of inconvenience in cleaning after the detection liquid flows out of the second connecting pipe 111.

[0052] Specifically, the water distribution box 104 is provided with a plurality of water outlets, and each water outlet is installed with the second control valve 105. By providing the plurality of water outlets on the water distribution box 104, a plurality of devices to be detected can be detected at the same time.

[0053] Specifically, a joint 121 is connected to one end of the high-pressure liquid outlet pipe 106 away from the water distribution tank 104, and the high-pressure liquid outlet pipe 106 is connected to the first connecting pipe 110 through the joint 121; a sealing portion 122 is fixedly connected to the joint 121, and a sealing groove is provided on the sealing portion 122, and the sealing portion 122 is used to seal the gap between the first connecting pipe 110 and the joint 121. A thread groove is provided in the first connecting pipe 110, and the joint 121 is threadedly connected to the first connecting pipe 110 through the thread groove. After the joint 121 is connected to the first connecting pipe 110, the sealing groove contacts the outer surface of the first connecting pipe 110 to further seal the gap between the first connecting pipe 110 and the joint 121, thereby preventing the detection liquid from overflowing through the gap between the first connecting pipe 110 and the joint 121.

[0054] Specifically, a sealing ring 123 is provided in the sealing groove. The sealing ring 123 is fixedly connected in the sealing groove, and the sealing ring 123 is coaxially arranged with the sealing groove. There are a plurality of sealing rings 123, and each sealing ring 123 is in contact with the outer surface of the first connecting pipe 110; the sealing ring 123 can perform multi-stage sealing on the gap between the first connecting pipe 110 and the joint 121.

[0055] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crystallizer pressure test device, comprising a pressure test pump (101), a first control valve (102), a high-pressure liquid inlet pipe (103), a water distribution tank (104), a second control valve (105), a high-pressure liquid outlet pipe (106) and a crystallizer water tank (107) connected in sequence, characterized in that: Also includes: A first pressure gauge (108), the first pressure gauge (108) being connected to a liquid inlet end of the high-pressure liquid inlet pipe (103); A second pressure gauge (109), the second pressure gauge (109) being connected to a liquid outlet end of the water distribution tank (104); A first connecting pipe (110), the first connecting pipe (110) being fixedly mounted on the crystallizer water tank (107), the first connecting pipe (110) being used to connect to an end of the high-pressure liquid outlet pipe (106) away from the water distribution tank (104); a second connecting pipe (111), the second connecting pipe (111) being fixedly mounted on the crystallizer water tank (107), and the second connecting pipe (111) being provided with an exhaust hole; An exhaust mechanism (112) is installed in the second connecting pipe (111) and is used to exhaust air retained in the crystallizer water box (107).

2. A crystallizer pressure testing device according to claim 1, characterized in that: The exhaust mechanism (112) comprises a cone sleeve (113), a plugging assembly (114) and a sleeve (115); the sleeve (115) is fixedly connected to the top end of the second connecting pipe (111); the cone sleeve (113) is fixedly connected to the bottom end of the second connecting pipe (111); the plugging assembly (114) is threadedly connected in the sleeve (115) and is used to seal the second connecting pipe (111) after cooperating with the cone sleeve (113).

3. A crystallizer pressure testing device according to claim 2, characterized in that: The plugging assembly (114) comprises a threaded rod (116), a plugging head (117) and a spring (118); the threaded rod (116) is threadedly connected in the sleeve; the plugging head (117) is fixedly connected to one end of the threaded rod (116) close to the cone sleeve (113); and the spring (118) is sleeved on the threaded rod (116) and arranged between the sleeve (115) and the plugging head (117).

4. A crystallizer pressure testing device according to claim 3, characterized in that: One end of the threaded rod (116) away from the conical sleeve (113) is connected to a rotating block (119).

5. A crystallizer pressure testing device according to claim 3, characterized in that: The plugging head (117) is a truncated cone structure.

6. A crystallizer pressure testing device according to claim 3, characterized in that: A boss for contacting the surface of the cone sleeve (113) is fixedly connected to the plugging head (117).

7. A crystallizer pressure testing device according to claim 1, characterized in that: The exhaust hole is connected to an overflow pipe (120).

8. A crystallizer pressure testing device according to claim 1, characterized in that: The water distribution tank (104) is provided with a plurality of water outlets, and each water outlet is installed with the second control valve (105).

9. A crystallizer pressure testing device according to claim 1, characterized in that: One end of the high-pressure liquid outlet pipe (106) away from the water distribution tank (104) is connected to a joint (121), and the high-pressure liquid outlet pipe (106) is connected to the first connecting pipe (110) via the joint (121); a sealing portion (122) is fixedly connected to the joint (121), and a sealing groove is provided on the sealing portion (122), and the sealing portion (122) is used to seal the gap between the first connecting pipe (110) and the joint (121).

10. A crystallizer pressure testing device according to claim 9, characterized in that: A sealing ring (123) is arranged in the sealing groove.

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