CN211924578U - Pressure protection device for mechanical seal cooling water - Google Patents
Pressure protection device for mechanical seal cooling water Download PDFInfo
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- CN211924578U CN211924578U CN202020134394.0U CN202020134394U CN211924578U CN 211924578 U CN211924578 U CN 211924578U CN 202020134394 U CN202020134394 U CN 202020134394U CN 211924578 U CN211924578 U CN 211924578U
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- mechanical seal
- water outlet
- ring
- outlet pipe
- pressure gauge
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Abstract
The utility model discloses a pressure protection device for mechanical seal cooling water, which comprises a mechanical seal, a water inlet pipe, a water outlet pipe and an electric contact pressure gauge; the water outlet of the mechanical seal is communicated with a water outlet pipe, an electric contact pressure gauge for protecting the equipment by disconnecting the power supply of the equipment when the water pressure is low is arranged on the water outlet pipe, and the electric contact pressure gauge is electrically connected with the power supply of the equipment. The utility model discloses, through set up electric contact pressure gauge in mechanical seal cooling water outlet pipe department, set for electric contact pressure gauge's value range, can make only just can operate at the limited value range internal equipment when mechanical seal cooling water's pressure, thereby when mechanical seal cooling water's pressure is less than the setting value, electric contact pressure gauge alright with controlgear, let equipment bring to rest immediately, thereby avoid appearing the mechanical seal that causes equipment because of cooling water pressure crosses low among the mechanical seal burns out the accident, eliminate mechanical seal and have the hidden danger in the use in production, improve the security of equipment operation.
Description
Technical Field
The utility model relates to a pressure protection device field especially relates to a pressure protection device of mechanical seal cooling water.
Background
Liquid or fluid pressurization related in many production and manufacturing industries can be applied to a pump body, and a mechanical seal used as a sealing element in the pump body is easy to generate heat during working, so that cooling is needed through cooling water, for example, the mechanical seal of the pump body in a flue gas compressor is cooled through cooling water, but the mechanical seal burnout accident of equipment is easily caused due to the fact that the pressure of the cooling water in the mechanical seal is too low in the operation process of the equipment, once the mechanical seal of the equipment is burnt out, production stop is needed to be carried out for maintenance in a large amount of time, time and labor are wasted, economic loss is directly caused, the existing technology cannot accurately judge and immediately stop the equipment when the pressure of the cooling water in the mechanical seal is low, the mechanical seal burnout accident is prevented, hidden dangers exist in the production process of the mechanical seal, and the safety of equipment operation is reduced.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art, the existence is because of the mechanical seal that the cooling water pressure crossed the defect that causes the mechanical seal of equipment to burn out the accident excessively among the mechanical seal, the utility model aims to solve the problem that the pressure protection device of a mechanical seal cooling water is put forward for can be timely when the cooling water pressure among the mechanical seal is low detect out and carry out power-off protection to equipment, thereby avoid appearing because of the mechanical seal that the cooling water pressure crossed the mechanical seal that causes the equipment that hangs out the accident because of among the mechanical seal, eliminate mechanical seal and have hidden danger in the in-process of producing and using, improve the security of equipment operation.
To achieve the purpose, the utility model adopts the following technical proposal:
the device comprises a mechanical seal, a first water inlet pipe, a second water inlet pipe, a first water outlet pipe, a second water outlet pipe, a public water outlet pipe and an electric contact pressure gauge;
the mechanical seal comprises a first water inlet, a second water inlet, a first water outlet and a second water outlet, the first water inlet pipe is communicated with the first water inlet, the second water inlet pipe is communicated with the second water inlet, the first water outlet pipe is communicated with the first water outlet, the second water outlet pipe is communicated with the second water outlet, the first water outlet pipe is connected with the public water outlet pipe, the public water outlet pipe is provided with an electric contact pressure gauge, the electric contact pressure gauge is used for disconnecting the power supply protection equipment when the water pressure is low, and the electric contact pressure gauge is electrically connected with the power supply of the equipment.
Preferably, the pressure measuring device further comprises a pressure gauge connector and a connecting pipe;
one end of the connecting pipe is communicated with the public water outlet pipe, the other end of the connecting pipe is connected with the pressure gauge connector through threads, and the other end of the pressure gauge connector is connected with the electric contact pressure gauge.
Preferably, the pressure gauge joint is a ferrule type pipe joint.
Preferably, a valve is also included;
the connecting pipe is connected with the valve used for controlling the liquid to flow to the electric contact pressure gauge.
Preferably, the mechanical seal is arranged in a pump body of the flue gas compressor.
Preferably, the mechanical seal is a double-end-face mechanical seal, the first water inlet pipe and the first water outlet pipe are arranged on the left end face of the mechanical seal, and the second water inlet pipe and the second water outlet pipe are arranged on the right end face of the mechanical seal.
Preferably, the mechanical seal further comprises a left spring, a right spring, a left movable ring, a right movable ring, a left fixed ring, a right fixed ring, a left sealing ring and a right sealing ring;
the left end of the mechanical seal is sequentially provided with the left spring, the left movable ring, the left fixed ring and the left sealing ring, the left end of the left spring is connected with the pump body, the right end of the left spring is connected with the left movable ring sleeved on the main shaft, the left end of the left fixed ring is matched with the left movable ring which is used for applying pressure to the left fixed ring to enable the left fixed ring to be tightly attached to the main shaft, and the left sealing ring used for sealing is arranged between the left fixed ring and the pump body;
the right-hand member of mechanical seal has set gradually right spring right rotating ring right stationary ring right sealing washer, the right side spring left end is connected with the pump body, the right-hand member of right spring with overlap in main epaxial right rotating ring is connected, the left end cooperation of right stationary ring has and is used for giving right stationary ring pressure makes right stationary ring closely laminates with the main shaft right rotating ring, be provided with between right stationary ring and the pump body and be used for sealing right sealing washer.
The utility model has the advantages that:
the utility model provides a pair of pressure protection device of mechanical seal cooling water, through set up electric contact pressure gauge on mechanical seal cooling water's public outlet pipe, set for electric contact pressure gauge's value domain scope, can so that only just can operate at the within range equipment of the value domain of injecing as mechanical seal cooling water's pressure, thereby when mechanical seal cooling water's pressure is less than the setting value, electric contact pressure gauge alright in order controlgear, let equipment bring to rest immediately, thereby avoid appearing because of cooling water pressure crosses low and cause the mechanical seal of equipment to burn out the accident in the mechanical seal, eliminate mechanical seal and have hidden danger in the use in production, improve the security of equipment operation.
Drawings
FIG. 1 is a schematic view of a pressure protection device for mechanically sealing cooling water;
FIG. 2 is a schematic structural view of a mechanical seal;
in the figure: 1. an electric contact pressure gauge; 2. mechanical sealing; 31. a first water outlet pipe; 32. a second water outlet pipe; 41. a first water inlet pipe; 42. a second water inlet pipe; 51. a first water inlet; 52. a second water inlet; 61. A first water outlet; 62. a second water outlet 7 and a connecting pipe; 8. a valve; 9. a pressure gauge joint; 10. a pump body; 11. a device power supply; 12. a main shaft; 13. a housing; 211. a left spring; 212. a right spring; 221. a left rotating ring; 222. a right rotating ring; 231. a left stationary ring; 232. a right stationary ring; 241. a left sealing ring; 242. and a right sealing ring.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the pressure protection device for cooling water of a mechanical seal 2 provided in this embodiment includes a mechanical seal 2, a first water inlet pipe 41, a second water inlet pipe 42, a first water outlet pipe 31, a second water outlet pipe 32, a common water outlet pipe 33, and an electric contact pressure gauge 1; the mechanical seal 2 comprises a first water inlet 51, a second water inlet 52, a first water outlet 61 and a second water outlet 62, a first water inlet pipe 41 is communicated with the first water inlet 51, a second water inlet pipe 42 is communicated with the second water inlet 52, a first water outlet pipe 31 is communicated with the first water outlet 61, a second water outlet pipe 32 is communicated with the second water outlet 62, the first water outlet pipe 31 and the second water outlet pipe 32 are both connected with a common water outlet pipe 33, an electric contact pressure gauge 1 for protecting equipment by disconnecting the equipment power supply 11 when the water pressure is low is arranged on the common water outlet pipe 33, and the electric contact pressure gauge 1 is electrically connected with the equipment power supply 11. The electric contact pressure gauge 1 is arranged on the common water outlet pipe 33 of the cooling water of the mechanical seal 2, the lower pressure limit of the electric contact pressure gauge 1 for power-off operation of the equipment is adjusted and set according to specific production conditions, when the pressure of the cooling water of the mechanical seal 2 is lower than the preset lower limit, the electric contact pressure gauge 1 can perform power-off protection on the equipment power supply 11, the burning accident of the mechanical seal 2 of the equipment caused by the overlow cooling water pressure in the mechanical seal 2 is avoided, the hidden danger of the mechanical seal 2 in the production and use process is eliminated, and the running safety of the equipment is improved.
In order to facilitate the replacement or maintenance of the electric contact pressure gauge 1, the electric contact pressure gauge further comprises a pressure gauge joint 9 and a connecting pipe 7; one end of the connecting pipe 7 is communicated with the common water outlet pipe 33, the other end of the connecting pipe 7 is connected with the pressure gauge joint 9 through threads, and the other end of the pressure gauge joint 9 is connected with the electric contact pressure gauge 1. Because the pressure gauge joint 9 and the electric contact pressure gauge 1 are in threaded connection, the electric contact pressure gauge 1 can be conveniently replaced or maintained.
In order to facilitate the installation and the disassembly of the electric contact pressure gauge 1, the pressure gauge joint 9 is a ferrule type pipe joint. Both ends of the ferrule type pipe joint are fixed with a connecting object through nuts, so that the installation process is flexible, and the sealing performance can be improved by adopting threaded connection.
In order to prevent the cooling liquid from leaking from the pressure gauge joint 9 in the operation process of maintenance and the like of the electric contact pressure gauge 1, the electric contact pressure gauge further comprises a valve 8; the connecting pipe 7 is connected with a valve 8 for controlling the liquid to flow to the electric contact pressure gauge 1. When operations such as maintenance need be carried out to electric contact pressure gauge 1, can close valve 8 on the connecting pipe 7 in advance, prevent that the coolant liquid from leaking, open valve 8 again after the operation is accomplished, resume the unobstructed nature of connecting pipe 7.
Further, the mechanical seal 2 is arranged inside the pump body 10 of the flue gas compressor. The pressure protection device for the cooling water of the mechanical seal 2 in the embodiment is arranged in the flue gas compressor and used for improving the working stability and safety of the flue gas compressor.
Further, the mechanical seal 2 is a double-end mechanical seal, the first water inlet pipe 41 and the first water outlet pipe 31 are disposed on the left end face of the mechanical seal 2, and the second water inlet pipe 42 and the second water outlet pipe 32 are disposed on the right end face of the mechanical seal 2. Through setting up two inlet tubes and two outlet pipes respectively to mechanical seal 2's both ends for double mechanical seal's both ends face all can cool off, improves the cooling effect.
Further, the mechanical seal 2 further includes a left spring 211, a right spring 212, a left moving ring 221, a right moving ring 222, a left fixed ring 231, a right fixed ring 232, a left sealing ring 241, and a right sealing ring 242;
the left end of the mechanical seal 2 is sequentially provided with a left spring 211, a left moving ring 221, a left fixed ring 231 and a left sealing ring 241, the left end of the left spring 211 is connected with the shell 13, the right end of the left spring 211 is connected with the left moving ring 221 sleeved on the main shaft 12, the left end of the left fixed ring 231 is matched with the left moving ring 221 which is used for applying pressure to the left fixed ring 231 to enable the left fixed ring 231 to be tightly attached to the main shaft 12, and the left sealing ring 241 for sealing is arranged between the left fixed ring 231 and the shell 13;
the right end of the mechanical seal 2 is sequentially provided with a right spring 212, a right movable ring 222, a right fixed ring 232 and a right sealing ring 242, the left end of the right spring 212 is connected with the housing 13, the right end of the right spring 212 is connected with the right movable ring 222 sleeved on the main shaft 12, the left end of the right fixed ring 232 is matched with the right movable ring 222 which is used for applying pressure to the right fixed ring 232 to enable the right fixed ring 232 to be tightly attached to the main shaft 12, and the right sealing ring 242 used for sealing is arranged between the right fixed ring 232 and the housing 13.
Spring one end and pump body coupling and give the rotating ring thrust, the rotating ring with thrust act on the stationary ring to make the stationary ring receive thrust extrusion and with the inseparable laminating of main shaft, the sealing washer setting is used for the sealed between stationary ring and the pump body between the stationary ring and the pump body, the cooling water between first inlet tube 41 and the first outlet pipe 31 is used for cooling off left stationary ring 231, the cooling water between second inlet tube 42 pipe and the second outlet pipe 32 is used for cooling off right stationary ring 232.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (7)
1. The utility model provides a pressure protection device of mechanical seal cooling water which characterized in that:
the device comprises a mechanical seal (2), a first water inlet pipe (41), a second water inlet pipe (42), a first water outlet pipe (31), a second water outlet pipe (32), a common water outlet pipe (33) and an electric contact pressure gauge (1);
the mechanical seal (2) comprises a first water inlet (51), a second water inlet (52), a first water outlet (61) and a second water outlet (62), the first water inlet pipe (41) is communicated with the first water inlet (51), the second water inlet pipe (42) is communicated with the second water inlet (52), the first water outlet pipe (31) is communicated with the first water outlet (61), the second water outlet pipe (32) is communicated with the second water outlet (62), the first water outlet pipe (31) and the second water outlet pipe (32) are both connected with the public water outlet pipe (33), the common water outlet pipe (33) is provided with the electric contact pressure gauge (1) for protecting equipment by disconnecting the equipment power supply (11) when the water pressure is low, the electric contact pressure gauge (1) is electrically connected with the equipment power supply (11).
2. The pressure protection device for mechanically sealing cooling water according to claim 1, wherein:
the pressure meter also comprises a pressure meter connector (9) and a connecting pipe (7);
one end of the connecting pipe (7) is communicated with the public water outlet pipe (33), the other end of the connecting pipe (7) is connected with the pressure gauge connector (9) through threads, and the other end of the pressure gauge connector (9) is connected with the electric contact pressure gauge (1).
3. The pressure protection device for mechanically sealing cooling water according to claim 2, wherein:
the pressure gauge joint (9) is a ferrule type pipe joint.
4. The pressure protection device for mechanically sealing cooling water according to claim 2, wherein:
also comprises a valve (8);
the connecting pipe (7) is connected with the valve (8) which is used for controlling the liquid to flow to the electric contact pressure gauge (1).
5. The pressure protection device for mechanically sealing cooling water according to claim 1, wherein:
the mechanical seal (2) is arranged in a pump body (10) of the smoke compressor.
6. The pressure protection device for mechanically sealing cooling water according to claim 1, wherein:
mechanical seal (2) are double mechanical seal, first inlet tube (41) and first outlet pipe (31) set up in the left end face of mechanical seal (2), second inlet tube (42) with second outlet pipe (32) set up in the right-hand member face of mechanical seal (2).
7. The pressure protection device for mechanically sealing cooling water according to claim 6, wherein:
the mechanical seal (2) further comprises a left spring (211), a right spring (212), a left moving ring (221), a right moving ring (222), a left fixed ring (231), a right fixed ring (232), a left sealing ring (241) and a right sealing ring (242);
the left end of the mechanical seal (2) is sequentially provided with the left spring (211), the left moving ring (221), the left fixed ring (231) and the left sealing ring (241), the left end of the left spring (211) is connected with the shell (13), the right end of the left spring (211) is connected with the left moving ring (221) sleeved on the main shaft (12), the left end of the left fixed ring (231) is matched with the left moving ring (221) which is used for applying pressure to the left fixed ring (231) to enable the left fixed ring (231) to be tightly attached to the main shaft (12), and the left sealing ring (241) used for sealing is arranged between the left fixed ring (231) and the shell (13);
the right-hand member of mechanical seal (2) has set gradually right spring (212), right side rotating ring (222), right side stationary ring (232), right sealing washer (242), right side spring (212) left end is connected with casing (13), the right-hand member of right side spring (212) with overlap on main shaft (12) right side rotating ring (222) is connected, the left end cooperation of right side stationary ring (232) has and is used for giving right side stationary ring (232) pressure makes right side stationary ring (232) closely laminate with main shaft (12) right side rotating ring (222), be provided with between right side stationary ring (232) and casing (13) and be used for sealed right sealing washer (242).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020134394.0U CN211924578U (en) | 2020-01-20 | 2020-01-20 | Pressure protection device for mechanical seal cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020134394.0U CN211924578U (en) | 2020-01-20 | 2020-01-20 | Pressure protection device for mechanical seal cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924578U true CN211924578U (en) | 2020-11-13 |
Family
ID=73331093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020134394.0U Active CN211924578U (en) | 2020-01-20 | 2020-01-20 | Pressure protection device for mechanical seal cooling water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924578U (en) |
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2020
- 2020-01-20 CN CN202020134394.0U patent/CN211924578U/en active Active
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