CN214617099U - Device for detecting mechanical sealing performance of centrifugal pump - Google Patents
Device for detecting mechanical sealing performance of centrifugal pump Download PDFInfo
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- CN214617099U CN214617099U CN202120243744.1U CN202120243744U CN214617099U CN 214617099 U CN214617099 U CN 214617099U CN 202120243744 U CN202120243744 U CN 202120243744U CN 214617099 U CN214617099 U CN 214617099U
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- centrifugal pump
- water tank
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- detecting
- connecting hose
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Abstract
The utility model discloses a device for detecting the mechanical sealing performance of a centrifugal pump, which is used for detecting the leakage of the mechanical sealing of the centrifugal pump, wherein the mechanical sealing of the centrifugal pump is provided with a liquid inlet pipe and a liquid outlet pipe; comprises a water tank; the pressurizing component is communicated with the water tank and is used for extracting pressurized liquid from the water tank and discharging the pressurized liquid from the pressure test mouthpiece; a first pressure gauge is arranged on the pressure test interface tube; the detection part comprises a first connecting hose, a second connecting hose and a second pressure gauge; one end of the first connecting hose is connected with the pressure test mouthpiece, and the other end of the first connecting hose is connected with the detection liquid inlet pipe; one end of the second connecting hose is connected with the detection liquid pipe; the second pressure gauge is connected to the other end of the second connecting hose. The utility model discloses a hose and manometer are connected centrifugal pump mechanical seal and pressure parts, then stabilize the pressurization to centrifugal pump mechanical seal, detect whether leak through the manometer, simple structure, and easily the removal is carried, and operation step is easily understandable, and the practicality is stronger.
Description
Technical Field
The utility model relates to an industry centrifugal pump mechanical seal detects technical field, and more specifically the device that says so relates to a detect centrifugal pump mechanical seal nature.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal. The leakage of the mechanical seal of the centrifugal pump often occurs, the leakage proportion of the mechanical seal accounts for more than 50% of the leakage reason of all industrial centrifugal pumps, and the normal operation of the pump is directly influenced by the operation of the mechanical seal.
After each dilute acid circulating centrifugal pump in the acid making purification section operates for a long time, the phenomenon of leakage of mechanical seal of the pump occurs. After the mechanical seal of the pump is replaced and the mechanical seal is installed again, the circulating cooling water of the pump needs to be started to detect the mechanical seal tightness, if the leakage is small, the normal production is influenced because the leakage is probably not detected by a common method.
Therefore, how to provide a centrifugal pump mechanical sealing performance detection device with simple structure and high detection efficiency is a problem that needs to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a detect device of centrifugal pump mechanical seal nature aims at solving above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for detecting the mechanical sealing performance of a centrifugal pump is used for detecting the leakage of the mechanical sealing of the centrifugal pump, and the mechanical sealing of the centrifugal pump is provided with a detection liquid inlet pipe and a detection liquid pipe; the method comprises the following steps:
a water tank;
a pressing member; the pressurizing component is communicated with the water tank and is used for extracting pressurized liquid from the water tank and discharging the pressurized liquid from the pressure test mouthpiece; a first pressure gauge is installed on the pressure test interface tube;
a detection section; the detection component comprises a first connecting hose, a second connecting hose and a second pressure gauge; one end of the first connecting hose is connected with the pressure test mouthpiece, and the other end of the first connecting hose is connected with the detection liquid inlet pipe; one end of the second connecting hose is connected with the detection liquid pipe; and the second pressure gauge is connected to the other end of the second connecting hose.
Through the technical scheme, the utility model provides a detection device passes through the cooperation of water tank and pressure parts, adopts first coupling hose, second coupling hose and second manometer to be connected centrifugal pump mechanical seal and pressure parts, then stabilizes the pressurization to centrifugal pump mechanical seal, detects whether to leak through the manometer, the utility model discloses simple structure easily removes and carries, and operating procedure is easily understandable, and the practicality is stronger.
Preferably, in the device for detecting mechanical sealing of a centrifugal pump, the pressurizing part further includes a cylinder, a piston rod, a first check valve, an extension pipe, a pressure rod, a strut, a connecting rod, and a second check valve; the cylinder body is of a cylinder structure with openings at two ends, is vertically fixed on the top surface of the water tank and is communicated with the inside of the water tank; the piston rod is connected with the cylinder body in a sliding mode and penetrates out of the top end of the cylinder body; the first one-way valve is arranged at the bottom end of the cylinder body and can prevent the pressurized liquid from flowing back into the water tank; one end of the extension pipe is fixed with the inner top wall of the water tank and is communicated with the first one-way valve, and the other end of the extension pipe extends towards the bottom surface of the water tank; the rod body of the pressure lever is hinged with the top end of the piston rod; the supporting rod is fixed on the side wall of the cylinder body; two ends of the connecting rod are respectively hinged with the end of the pressure lever and the end of the supporting rod; one end, far away from the first connecting hose, of the pressure test interface tube is fixed with the side wall of the cylinder body and communicated with the inside of the cylinder body; the second one-way valve is installed the pressure testing mouth-piece with the link of cylinder body, and can prevent the pressurization liquid to backward flow in the cylinder body. The utility model provides a pressurization part utilizes the piston to draw water and pressurize through simple body of rod hinge structure, can artifical manual operation, and is simple to use convenient.
Preferably, in the device for detecting mechanical sealing of a centrifugal pump, a rubber grip is sleeved on one end of the pressure lever, which is far away from the connecting rod. The user can conveniently hold and press the handle.
Preferably, in the above apparatus for detecting mechanical sealing of a centrifugal pump, the bottom end of the extension pipe is of a bell mouth structure with an increasing caliber. Is beneficial to improving the water pumping efficiency of the pressurizing part.
Preferably, in the above apparatus for detecting mechanical sealing of a centrifugal pump, the bottom end of the cylinder body is fixedly connected to the top surface of the water tank through a flange. The connection is simple, and the structural stability is strong.
Preferably, in the device for detecting mechanical sealing of a centrifugal pump, the pressure test interface tube is further provided with a pressure relief branch tube. Prevent the pressure from being overlarge and facilitate the pressure relief.
Preferably, in the above apparatus for detecting mechanical sealing of a centrifugal pump, the first connection hose and the detection liquid inlet pipe, and the second connection hose and the detection liquid outlet pipe are connected by stainless steel joints and fastened by clamps. The stainless steel joint is used at the hose joint, so that the hose joint is favorable for being connected with the hose at the mechanical seal position and is screwed down by the clamp to prevent liquid leakage.
Preferably, in the device for detecting mechanical sealing performance of a centrifugal pump, the first connecting hose and the pressure test interface tube are tightly and tightly connected by a flange structure. The connection is simple and convenient, and the structural stability and the sealing performance are strong.
Preferably, in the above apparatus for detecting mechanical sealing of a centrifugal pump, the water tank has a rectangular structure, and the water tank has a length of 300mm, a width of 180mm, and a height of 100 mm. The device is small and portable and is easy to move and carry.
Preferably, in the above apparatus for detecting mechanical sealing of a centrifugal pump, the ranges of the first pressure gauge and the second pressure gauge are both 0-1.6 Mpa. The pressure detection requirement can be met.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a detect centrifugal pump mechanical seal's device has following beneficial effect:
1. the device provided by the utility model is small and exquisite light, easily removes and carries, and operating procedure is simple understandable, and the practicality is stronger.
2. The utility model discloses the time that the detection needs is shorter, can measure mechanical seal's leakproofness in the short time.
3. There are two ways of leakage for mechanical seals: both internal and external leaks can be detected using the device.
4. When the mechanical seal has tiny leakage, the tiny leakage is difficult to be found in a short time, and great potential safety hazard exists. The device can solve the problem.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for detecting mechanical sealing of a centrifugal pump provided by the present invention;
FIG. 2 is a front view of the device for detecting mechanical sealing of a centrifugal pump according to the present invention;
FIG. 3 is a side view of the device for detecting mechanical sealing of a centrifugal pump according to the present invention;
fig. 4 is a top view of the device for detecting mechanical sealing of a centrifugal pump provided by the present invention.
Wherein:
1-mechanical seal of centrifugal pump;
11-detecting a liquid inlet pipe; 12-detecting the liquid outlet pipe;
2-a water tank;
3-a pressing member;
31-pressure test mouthpiece; 311-pressure relief branch; 32-a first pressure gauge; 33-cylinder body; 331-flange plate;
34-a piston rod; 35-an extension tube; 351-bell mouth structure; 36-a compression bar; 361-rubber grip; 37-a strut; 38-a connecting rod;
4-a detection component;
41-a first connecting hose; 42-a second connecting hose; 43-a second pressure gauge; 44-stainless steel joints;
45-clamping a hoop; 46-flange configuration.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the embodiment of the present invention discloses a device for detecting mechanical sealing performance of a centrifugal pump, which is used for detecting leakage of a mechanical seal 1 of the centrifugal pump, wherein the mechanical seal 1 of the centrifugal pump is provided with a detection liquid inlet pipe 11 and a detection liquid pipe 12; the method comprises the following steps:
a water tank 2;
a pressing member 3; the pressurizing component 3 is communicated with the water tank 2 and is used for extracting pressurized liquid from the water tank 2 and discharging the pressurized liquid from the pressure test mouthpiece 31; a first pressure gauge 32 is arranged on the pressure test interface tube 31;
a detection part 4; the detection part 4 includes a first connection hose 41, a second connection hose 42, and a second pressure gauge 43; one end of the first connecting hose 41 is connected with the pressure test mouthpiece 31, and the other end is connected with the detection liquid inlet pipe 11; one end of the second connecting hose 42 is connected with the detection liquid outlet pipe 12; a second pressure gauge 43 is connected to the other end of the second connection hose 42.
In order to further optimize the above technical solution, the pressurizing component 3 further includes a cylinder 33, a piston rod 34, a first one-way valve, an extension pipe 35, a pressure rod 36, a strut 37, a connecting rod 38 and a second one-way valve; the cylinder body 33 is a cylinder structure with two open ends, is vertically fixed on the top surface of the water tank 2, and is communicated with the inside of the water tank 2; the piston rod 34 is connected with the cylinder 33 in a sliding way and penetrates out of the top end of the cylinder 33; the first check valve is installed at the bottom end of the cylinder 33 and can prevent the pressurized liquid from flowing back into the water tank 2; one end of the extension pipe 35 is fixed with the inner top wall of the water tank 2 and is communicated with the first one-way valve, and the other end extends towards the bottom surface of the water tank 2; the rod body of the pressure rod 36 is hinged with the top end of the piston rod 34; the supporting rod 37 is fixed on the side wall of the cylinder body 33; two ends of the connecting rod 38 are respectively hinged with the end of the pressure lever 36 and the end of the strut 37; one end of the pressure test interface tube 31, which is far away from the first connecting hose 41, is fixed with the side wall of the cylinder body 33 and is communicated with the inside of the cylinder body 33; the second check valve is installed at the connection end of the pressure test mouthpiece 31 and the cylinder 33, and can prevent the pressurized liquid from flowing back into the cylinder 33.
In order to further optimize the above technical solution, one end of the pressure lever 36 away from the connecting rod 38 is sleeved with a rubber grip 361.
In order to further optimize the above technical solution, the bottom end of the extension pipe 35 is a bell mouth structure 351 with gradually increasing caliber.
In order to further optimize the above technical solution, the bottom end of the cylinder 33 is fixedly connected with the top surface of the water tank 2 through a flange 331.
In order to further optimize the technical scheme, the pressure test interface tube 31 is also provided with a pressure relief branch tube 311.
In order to further optimize the above technical solution, the first connection hose 41 and the detection liquid inlet pipe 11, and the second connection hose 42 and the detection liquid pipe 12 are connected by stainless steel joints 44, and are fastened by clips 45.
In order to further optimize the technical scheme, the first connecting hose 41 and the pressure test interface tube 31 are tightly connected in a sealing mode through a flange structure 46.
In order to further optimize the technical scheme, the water tank 2 is of a rectangular structure, the length of the water tank 2 is 300mm, the width of the water tank is 180mm, and the height of the water tank is 100 mm.
In order to further optimize the technical scheme, the measuring ranges of the first pressure gauge 32 and the second pressure gauge 43 are both 0-1.6 MPa.
The utility model discloses a detection method does:
1. a water tank 2 is filled with pressurized liquid, and the water tank 2 is designed to be 300mm long, 180mm wide and 100mm high.
2. The first connecting hose 41, the second connecting hose 42 and the second pressure gauge 43 are hermetically connected with the detection liquid inlet pipe 11 and the detection liquid pipe 12 of the centrifugal pump mechanical seal 1 through stainless steel joints 44 and a clamp 45, and the first connecting hose 41 is hermetically connected with the pressure test interface pipe 31 through a flange structure 46.
3. After the connection is completed, the pressure is gradually increased to a desired value in accordance with the pressure head requirement of the pressure member 3 by gradually pressurizing the pressure to be gradually increased.
4. After the required value is stabilized, the pressurization is stopped, and after the pressure is stabilized for 10 minutes, the pressure is basically unchanged, which indicates that the mechanical seal 1 of the centrifugal pump has no leakage phenomenon.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The device for detecting the mechanical sealing performance of the centrifugal pump is characterized by being used for detecting the leakage of the mechanical sealing (1) of the centrifugal pump, wherein the mechanical sealing (1) of the centrifugal pump is provided with a detection liquid inlet pipe (11) and a detection liquid pipe (12); the method comprises the following steps:
a water tank (2);
a pressing member (3); the pressurizing component (3) is communicated with the water tank (2) and is used for extracting pressurized liquid from the water tank (2) and discharging the pressurized liquid from the pressure test mouthpiece (31); a first pressure gauge (32) is arranged on the pressure test interface tube (31);
a detection means (4); the detection part (4) comprises a first connecting hose (41), a second connecting hose (42) and a second pressure gauge (43); one end of the first connecting hose (41) is connected with the pressure test interface tube (31), and the other end of the first connecting hose is connected with the detection liquid inlet tube (11); one end of the second connecting hose (42) is connected with the detection liquid pipe (12); the second pressure gauge (43) is connected to the other end of the second connection hose (42).
2. A device for detecting the mechanical tightness of a centrifugal pump according to claim 1, characterized in that said pressurizing means (3) further comprises a cylinder (33), a piston rod (34), a first one-way valve, an extension pipe (35), a pressure rod (36), a strut (37), a connecting rod (38) and a second one-way valve; the cylinder body (33) is of a cylinder structure with openings at two ends, is vertically fixed on the top surface of the water tank (2), and is communicated with the inside of the water tank (2); the piston rod (34) is connected with the cylinder body (33) in a sliding manner and penetrates out of the top end of the cylinder body (33); the first one-way valve is arranged at the bottom end of the cylinder body (33) and can prevent the pressurized liquid from flowing back into the water tank (2); one end of the extension pipe (35) is fixed with the inner top wall of the water tank (2) and is communicated with the first one-way valve, and the other end of the extension pipe extends towards the bottom surface of the water tank (2); the rod body of the pressure rod (36) is hinged with the top end of the piston rod (34); the supporting rod (37) is fixed on the side wall of the cylinder body (33); two ends of the connecting rod (38) are respectively hinged with the end of the pressure lever (36) and the end of the support rod (37); one end, far away from the first connecting hose (41), of the pressure test interface tube (31) is fixed with the side wall of the cylinder body (33) and communicated with the interior of the cylinder body (33); the second one-way valve is installed at the connecting end of the pressure test interface tube (31) and the cylinder body (33), and can prevent the pressurized liquid from flowing back into the cylinder body (33).
3. The device for detecting the mechanical tightness of a centrifugal pump according to claim 2, characterized in that the end of the pressure lever (36) away from the connecting rod (38) is sleeved with a rubber grip (361).
4. The device for detecting the mechanical tightness of a centrifugal pump according to claim 2, characterized in that the bottom end of the extension pipe (35) is a bell mouth structure (351) with gradually increasing caliber.
5. A device for detecting the mechanical tightness of a centrifugal pump according to claim 2, characterized in that the bottom end of the cylinder (33) is fixedly connected with the top surface of the water tank (2) through a flange (331).
6. The device for detecting the mechanical sealing performance of the centrifugal pump is characterized in that the pressure test interface tube (31) is further provided with a pressure relief branch tube (311).
7. The device for detecting the mechanical tightness of a centrifugal pump according to claim 1, characterized in that the first connection hose (41) and the detection liquid inlet pipe (11) and the second connection hose (42) and the detection liquid outlet pipe (12) are connected by stainless steel joints (44) and fastened by clamps (45).
8. The device for detecting the mechanical sealing performance of the centrifugal pump as claimed in claim 1, wherein the first connecting hose (41) and the pressure test interface tube (31) are tightly connected in a sealing manner by a flange structure (46).
9. A device for testing the mechanical tightness of a centrifugal pump according to claim 1, characterized in that said water tank (2) has a rectangular structure, said water tank (2) having a length of 300mm, a width of 180mm and a height of 100 mm.
10. A device for detecting the mechanical tightness of a centrifugal pump according to claim 1, characterized in that said first pressure gauge (32) and said second pressure gauge (43) are both in the range of 0-1.6 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120243744.1U CN214617099U (en) | 2021-01-28 | 2021-01-28 | Device for detecting mechanical sealing performance of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120243744.1U CN214617099U (en) | 2021-01-28 | 2021-01-28 | Device for detecting mechanical sealing performance of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617099U true CN214617099U (en) | 2021-11-05 |
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ID=78439241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120243744.1U Active CN214617099U (en) | 2021-01-28 | 2021-01-28 | Device for detecting mechanical sealing performance of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617099U (en) |
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2021
- 2021-01-28 CN CN202120243744.1U patent/CN214617099U/en active Active
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