CN218863852U - Double-end-face machine seal isolation cavity lubricating device - Google Patents
Double-end-face machine seal isolation cavity lubricating device Download PDFInfo
- Publication number
- CN218863852U CN218863852U CN202222644476.1U CN202222644476U CN218863852U CN 218863852 U CN218863852 U CN 218863852U CN 202222644476 U CN202222644476 U CN 202222644476U CN 218863852 U CN218863852 U CN 218863852U
- Authority
- CN
- China
- Prior art keywords
- pipe
- storage tank
- oil storage
- double
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 12
- 238000002955 isolation Methods 0.000 title abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000005461 lubrication Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 abstract description 59
- 239000010687 lubricating oil Substances 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000037452 priming Effects 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Abstract
The utility model relates to a water pump machine seals lubricated technical field, specifically is double-end face machine seals isolated cavity lubricating arrangement, include, set up in the self priming pump case outside and be higher than the oil storage tank of double-end face machine seals isolated cavity, penetrated the intermediate pipe to it by the oil storage tank bottom surface, the top mouth of pipe of intermediate pipe upwards surpasss the oil storage tank bottom surface predetermined height, the bottom mouth of pipe of intermediate pipe is connected with communicating pipe, the other end mouth of pipe of communicating pipe connects double-end face machine seals isolated cavity; an oil filling hole is formed in the top surface of the oil storage tank, and a first plug is arranged at the oil filling hole; the side wall of the oil storage tank is connected with a water injection pipe at the bottom, and the water injection pipe is provided with a switch valve. The gas-liquid isolation settling tank is omitted, clear water is directly accessed from the bottom of the oil storage tank, and the water level in the oil storage tank cannot enter the double-end-face machine seal isolation cavity before reaching the top pipe orifice of the middle pipe due to the fact that the density of lubricating oil is smaller than that of water, so that the early stage oil lubrication state and the later stage water lubrication state are achieved, and the service life of the mechanical seal is guaranteed.
Description
Technical Field
The utility model relates to a water pump machine seals lubricated technical field, especially relates to a bi-polar face machine seals isolated cavity lubricating arrangement.
Background
Aiming at the problems that when a self-priming pump adopts double-end-face mechanical seal sealing, in the running process of the self-priming pump, the pressure in a pump cavity is higher than the pressure in a double-end-face mechanical seal isolation cavity, sewage in a pump cavity can gradually permeate into the double-end-face mechanical seal isolation cavity, so that a lower side mechanical seal of the double-end-face mechanical seal is in a sewage lubrication state, solid particles in the sewage enter a sealing friction surface, and the service life of the mechanical seal is shortened, the applicant proposes an application number of 202210519938.9, which is named as a pressure guarantee device for the double-end-face mechanical seal isolation cavity of the self-priming pump;
however, in practical applications the applicant has found that: although be provided with the gas-liquid and keep apart the case that subsides, if the medium turbidity of self priming pump pumping is higher, the later stage subsides the clarity that is used for lubricated clear water after is difficult to guarantee, contains more impurity, leads to later stage machine to seal life to reduce.
SUMMERY OF THE UTILITY MODEL
To the problem, the embodiment of the utility model provides a bi-polar face machine seals isolated cavity lubricating arrangement.
The utility model discloses an aspect of implementation provides a double-end face machine seals isolated cavity lubricating arrangement, include, set up in the self priming pump case outside and higher than the oil storage tank of double-end face machine seals isolated cavity, penetrated the intermediate pipe to it by the oil storage tank bottom surface, the top mouth of pipe of intermediate pipe upwards surpasss the oil storage tank bottom surface predetermined height, the bottom mouth of pipe of intermediate pipe is connected with communicating pipe, the other end mouth of pipe of communicating pipe connects the double-end face machine seals isolated cavity; an oil filling hole is formed in the top surface of the oil storage tank, and a first plug is arranged at the oil filling hole; the side wall of the oil storage tank is connected with a water injection pipe at the bottom, and a switch valve is installed on the water injection pipe.
Compared with the prior art, the beneficial effects of the utility model reside in that: external clear water supply is changed, and the lubricating effect of later-stage water lubrication is guaranteed; meanwhile, a gas-liquid isolation settling tank is omitted, clear water is directly accessed from the bottom of the oil storage tank, water can be located at the bottom of the oil storage tank due to the fact that the density of lubricating oil is smaller than that of water, the water level in the oil storage tank cannot enter the middle pipe and the double end face machine seal isolation cavity before reaching the top pipe orifice of the middle pipe, the early stage of oil lubrication state and the later stage of water lubrication state are achieved, and the service life of the mechanical seal is guaranteed.
Optionally, a branch pipeline is arranged on the water injection pipe and located on the front side of the switch valve, and an exhaust valve is arranged on the branch pipeline.
Optionally, an exhaust hole is formed in the top surface of the oil storage tank, and a second plug is arranged at the exhaust hole.
Optionally, a blow-off hole is formed in the bottom surface of the oil storage tank, and a third plug is arranged at the blow-off hole.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of a double-end-face machine seal separation cavity lubricating device provided by the embodiment of the present invention.
The double-end-face mechanical seal isolation cavity comprises a double-end-face mechanical seal isolation cavity 1, an oil storage tank 2, a middle pipe 3, a communicating pipe 4, a first plug 5, a water injection pipe 6, a switch valve 7, a branch pipeline 8, an exhaust valve 9, a second plug 10, a third plug 11 and a fourth plug 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments of the present invention and the description thereof are used to explain the present invention, but are not intended to limit the present invention.
Referring to fig. 1, the utility model provides a double-end face machine seals isolated cavity lubricating arrangement, include, set up in the self priming pump case outside and higher than the oil storage tank 2 of double-end face machine seals isolated cavity 1, penetrate the intermediate tube 3 into it from the bottom surface of oil storage tank 2, the top mouth of pipe of the intermediate tube 3 exceeds the predetermined height of the bottom surface of oil storage tank 2 upwards, the bottom mouth of pipe of the intermediate tube 3 connects with communicating pipe 4, the other end mouth of pipe of communicating pipe 4 connects the double-end face machine seals isolated cavity 1; an oil filling hole is formed in the top surface of the oil storage tank 2, and a first plug 5 is arranged at the oil filling hole; the side wall of the oil storage tank 2 is connected with a water injection pipe 6 at the bottom, and a switch valve 7 is installed on the water injection pipe 6.
In implementation, a branch pipeline 8 is arranged on the water injection pipe 6 and positioned at the front side of the switch valve 7, and an exhaust valve 9 is arranged on the branch pipeline 8; specifically, a tee joint can be arranged at the pipe orifice outside the water injection pipe 6, and the rest two pipe orifices in the tee joint are respectively used for installing an exhaust valve 9 and injecting clear water; the switch valve 7 and the exhaust valve 9 can be ball valves.
The top surface of the oil storage tank 2 is provided with an exhaust hole, and a second plug 10 is arranged at the exhaust hole. The bottom surface of the oil storage tank 2 is provided with a sewage discharge hole, and a third plug 11 is arranged at the sewage discharge hole.
Before the pump leaves the factory, switching valve 7 keeps the closed state and pours into lubricating oil into batch oil tank 2 and bi-polar machine seal isolated cavity 1, and specific operating procedure is: opening a first plug 5 and a second plug 10 on an oil storage tank 2 and a fourth plug 12 on a double-end-face mechanical seal isolation chamber 1, injecting lubricating oil into the oil storage tank 2 through an oil injection hole, when the oil level in the oil storage tank 2 exceeds the top pipe orifice of a middle pipe 3, the lubricating oil flows into the double-end-face mechanical seal isolation chamber 1 through a communicating pipe 4, and the lubricating oil is screwed into the fourth plug 12 when the oil level in the double-end-face mechanical seal isolation chamber 1 reaches the position of the fourth plug 12; lubricating oil is continuously injected into the oil storage tank 2, and after the oil storage tank 2 is filled with the lubricating oil, the first plug 5 and the second plug 10 are screwed down to ensure that the oil storage tank 2, the communicating pipe 4 and the double-end-face machine seal isolation cavity 1 are filled with the lubricating oil;
before the pump is operated, a pipe orifice for injecting clean water in the tee joint is connected with an external water supply pipeline, the direction of an arrow in the figure 1 is the flow direction of the clean water in the external water supply pipeline, an exhaust valve 9 is opened, when water is discharged from the exhaust valve 9, the exhaust valve 9 is closed, and a switch valve 7 is opened at the same time, so that the operation ensures that the air in the water supply pipeline is completely discharged, and the air is prevented from entering the oil storage tank 2;
in the running process of the pump, the pressure in the oil storage tank 2, the communicating pipe 4 and the double-end-face mechanical seal isolation cavity 1 is consistent with the external water supply pressure, and the pressure requirement of the double-end-face mechanical seal isolation cavity 1 is ensured by using the water supply pressure, so that the double-end-face mechanical seal is in a positive pressure difference working state, namely the pressure in the double-end-face mechanical seal isolation cavity 1 is respectively higher than the pressure in the atmosphere side and the pressure in the pump cavity, and air and liquid in the pump cavity cannot enter the double-end-face mechanical seal isolation cavity 1;
under the normal working state of the mechanical seal, trace leakage exists, along with the leakage of lubricating oil, clear water in a water supply pipeline enters an oil storage tank 2, and because the density of the lubricating oil is smaller than that of water, the water level in the oil storage tank 2 cannot enter a communicating pipe 4 and a double-end-face mechanical seal isolation cavity 1 before reaching a top pipe orifice of a middle pipe 3, so that the earlier stage is in an oil lubrication state; if need ensure that the machine seals and be in the lubricated state of oil, can reach the top mouth of pipe forward packing lubricating oil in the oil storage tank 2 of middle pipe 3 at the water level in the oil storage tank 2, specifically be: stopping the operation of the pump, closing the switch valve 7, opening the second plug 10 and the third plug 11, discharging water in the oil storage tank 2 from a sewage hole, screwing the third plug 11 after the water is discharged, opening the first plug 5, filling oil into the oil storage tank 2 through the oil filling hole, and screwing the first plug 5 and the second plug 10 after the oil is filled;
treat that later stage machine seals wearing and tearing are comparatively serious, when the oil consumption increases, can no longer be to the interior supplementary lubricating oil of batch oil tank 2, the clear water lubrication state of later stage is realized to the top mouth of pipe that the water level reaches middle tube 3 in batch oil tank 2 back entering double-ended machine seals isolation chamber 1 through communicating pipe 4.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (4)
1. A double-end-face machine seal isolated cavity lubricating device comprises an oil storage tank which is arranged on the outer side of a self-priming pump casing and is higher than a double-end-face machine seal isolated cavity, and is characterized in that a middle pipe penetrates into the oil storage tank from the bottom surface of the oil storage tank, a top pipe orifice of the middle pipe upwards exceeds the bottom surface of the oil storage tank by a preset height, a bottom pipe orifice of the middle pipe is connected with a communicating pipe, and a pipe orifice at the other end of the communicating pipe is connected with a double-end-face machine seal isolated cavity; an oil filling hole is formed in the top surface of the oil storage tank, and a first plug is arranged at the oil filling hole; the side wall of the oil storage tank is connected with a water injection pipe at the bottom, and a switch valve is installed on the water injection pipe.
2. The double-ended mechanical seal isolated cavity lubricating apparatus according to claim 1, wherein a branch line is provided on the water injection pipe at the front side of the switching valve, and an exhaust valve is provided on the branch line.
3. The double-ended mechanical seal isolated cavity lubrication device of claim 1, wherein a vent is provided on the top surface of the oil reservoir, and a second plug is provided at the vent.
4. The double-ended mechanical seal isolated cavity lubricating apparatus of claim 1, wherein a drain hole is provided in a bottom surface of the oil storage tank, and a third plug is provided at the drain hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222644476.1U CN218863852U (en) | 2022-10-09 | 2022-10-09 | Double-end-face machine seal isolation cavity lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222644476.1U CN218863852U (en) | 2022-10-09 | 2022-10-09 | Double-end-face machine seal isolation cavity lubricating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218863852U true CN218863852U (en) | 2023-04-14 |
Family
ID=87364404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222644476.1U Active CN218863852U (en) | 2022-10-09 | 2022-10-09 | Double-end-face machine seal isolation cavity lubricating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218863852U (en) |
-
2022
- 2022-10-09 CN CN202222644476.1U patent/CN218863852U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218863852U (en) | Double-end-face machine seal isolation cavity lubricating device | |
| CN204082565U (en) | Vacuum water diversion centrifugal pump device | |
| CN201141515Y (en) | Anti-leakage drainer of gas pipeline | |
| CN112066261B (en) | Oil supplementing device of oil regulating system | |
| CN110285066B (en) | Automatic exhaust self-priming pump device | |
| CN203907241U (en) | Dual-leakage-preventing coal gas water drainage apparatus | |
| CN210739469U (en) | Novel backflow stopping device | |
| CN211976555U (en) | Integrated gas zero-leakage drainer | |
| CN101059277A (en) | Solar energy water heater | |
| CN205401150U (en) | Centrifugal pump of horizontal axis automatic water supplying device | |
| CN217539827U (en) | Device for preventing vacuum tank water compensating valve from leaking gas | |
| CN201802879U (en) | Highly-sealed cylindrical quick exhaust valve | |
| CN210000919U (en) | copper foil electrolyte siphon tank | |
| CN220205421U (en) | Water mist explosion-proof device for low-concentration gas conveying pipeline | |
| CN220551235U (en) | Oil cylinder structure of plunger pump | |
| CN211779185U (en) | One-way throttle valve joint for mechanical seal washing water for pump | |
| CN213629016U (en) | Vacuum breaker with floating ball structure | |
| CN216710346U (en) | Spent acid holding vessel | |
| CN215711717U (en) | Filling nozzle | |
| CN110117978B (en) | Water inlet valve for toilet cistern | |
| CN214948258U (en) | Large-flow upper and lower liquid level air-blocking drainer | |
| CN219531379U (en) | Cooling system is carried to liquid high level | |
| CN115435229B (en) | Heavy pressure accumulating float valve type automatic oil drain device | |
| CN218063412U (en) | Isolated high-sealing electromagnetic gas valve | |
| CN219974833U (en) | Automatic water diversion device of coal mine centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231207 Address after: 050600 south of East section of Xinhe street, Xingtang County Economic Development Zone (South District), Shijiazhuang City, Hebei Province Patentee after: Shanglishi group (Shijiazhuang) Pump Technology Co.,Ltd. Address before: 063000 No. 501, gate 5, 6th floor, Changning building, Changning Road bujiazhuang, Lubei District, Tangshan City, Hebei Province Patentee before: Song Qiuwei |
|
| TR01 | Transfer of patent right |