CN204003426U - A kind of mechanical seal device of flushing certainly of NHD solution pump - Google Patents
A kind of mechanical seal device of flushing certainly of NHD solution pump Download PDFInfo
- Publication number
- CN204003426U CN204003426U CN201420345430.2U CN201420345430U CN204003426U CN 204003426 U CN204003426 U CN 204003426U CN 201420345430 U CN201420345430 U CN 201420345430U CN 204003426 U CN204003426 U CN 204003426U
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- Prior art keywords
- mechanical seal
- heat exchanger
- solution
- nhd
- flushing
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Abstract
The utility model provides a kind of mechanical seal device of flushing certainly of NHD solution pump, comprise two solution pumps, the blind plate of described two solution delivery side of pump ends is all connected with the entry end of duplex filter by conduit, the outlet end of described duplex filter is connected with the shell side entry end of heat exchanger, the shell side outlet end of described heat exchanger is connected with cleaning hose, and the other end of described cleaning hose rinses arms by two and is connected with the rinse mouth of the mechanical seal of two solution pumps respectively; The tube side inlet/outlet of described heat exchanger is all connected with circulating pipe.By the NHD solution of the High Temperature High Pressure of NHD solution pump, after filtration, after heat exchange to the mechanical sealing surface flushing of lowering the temperature, thereby improved the working environment of sealing surface, the working life of having improved machine envelope, guarantee the long-term operation of equipment, there is great economic benefit.
Description
Technical field
The utility model relates to the mechanical seal of solution pump, is specifically related to a kind of mechanical seal device of flushing certainly of NHD solution pump.
Background technique
Because Reliability of Mechanical Seal is high, long service life, be widely used at present in the industries such as petrochemical industry, as the solution pump of Polyethylene glycol dimethyl ether (being called for short NHD) adopts mechanical seal to prevent NHD fluid leakage exactly.But mechanical seal needs higher manufacturing process and mounting technique, and suitable sealflushing, and mostly the mechanical seal rinsing of NHD solution pump is that from solution delivery side of pump, drawing NHD solution carries out from rinsing.Because NHD solution temperature is high and be contained in a large amount of impurity, using it as washing solution, sealing surface can not get cooling, and easily make the hot tearing of wear-and corrosion-resistant coating or peel off, make impurity in NHD solution enter sealing surface and also can form " grains of sand ", aggravate its wearing and tearing, thereby cause machine to be sealed the wearing and tearing of front cover and cause leakage, thereby have influence on the operation of solution pump.After mechanical seal is disassembled in maintenance, find the surface checking of auxiliary seal O type circle, lose elasticity; Sealing surface wear peels off seriously, sometimes finds that stationary ring occurs cracked.This has caused the life-span of mechanical seal greatly to shorten, and will change every year 4-5 slave envelope, has not only affected production, also makes the cost of overhaul greatly improve.
Model utility content
For above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of mechanical seal device of flushing certainly of NHD solution pump, realize with NHD solution mechanical seal is carried out from rinsing, reach the Environmental Conditions of having improved mechanical seal, and greatly improve the working life of mechanical seal.
A kind of mechanical seal device of flushing certainly of NHD solution pump, comprise two solution pumps, the blind plate of described two solution delivery side of pump ends is all connected with the entry end of duplex filter by conduit, the outlet end of described duplex filter is connected with the shell side entry end of heat exchanger, the shell side outlet end of described heat exchanger is connected with cleaning hose, and the other end of described cleaning hose rinses arms by two and is connected with the rinse mouth of the mechanical seal of two solution pumps respectively; The tube side inlet/outlet of described heat exchanger is all connected with circulating pipe.
Further, the filter core of described duplex filter is 100 orders.
On described flushing arm, be respectively provided with a stop valve.
The material of described heat exchanger is stainless steel, and the shell side of described heat exchanger is provided with thermometer, and cleaning hose is provided with pressure gauge.
Duplex filter can carry out changeable filtration to NHD solution, has improved the quality of filter efficiency and filtration, reduces the sealing surface wear of NHD solution to mechanical seal.The temperature of the NHD solution after heat exchanger heat exchange and pressure can be monitored by thermometer and pressure gauge, and can be by adjusting the flow of the circulating water in the circulating pipe being connected with the tube side of heat exchanger and temperature and the pressure that flow velocity is controlled NHD solution.
The utility model first filters by duplex filter pump the High Temperature High Pressure NHD solution coming from solution, and acrobatics is wherein filtered out, and then imports in heat exchanger and lowers the temperature, and generally can be down to 50 ℃ of left and right by 120 ℃.The NHD solution of low temperature enters the rinse mouth of the mechanical seal of solution pump by cleaning hose, to the flushing of lowering the temperature of the sealing surface of mechanical seal.Thereby greatly improved the working life of the mechanical seal of solution pump, and extended its repair cycle, guaranteed the operation of equipment " peace, steady, long, full, excellent ", saved considerable maintenance expenses.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
In figure: 1-solution pump, 2-blind plate, 3-rinse mouth, 4-stop valve, 5-rinses arm, 6-cleaning hose, 7-heat exchanger, 8-duplex filter, 9-thermometer, 10-pressure gauge.
Embodiment
As shown in Figure 1, a kind of mechanical seal device of flushing certainly of NHD solution pump, comprise two solution pumps 1, the blind plate 2 of the outlet end of described two solution pumps 1 is all connected with the entry end of duplex filter 8 by conduit, the outlet end of described duplex filter 8 is connected with the shell side entry end of heat exchanger 7, the shell side outlet end of described heat exchanger 7 is connected with cleaning hose 6, and the other end of described cleaning hose 6 rinses arms 5 by two and is connected with the rinse mouth 3 of the mechanical seal of two solution pumps 1 respectively; The tube side inlet/outlet of described heat exchanger 7 is all connected with circulating pipe.
Further, the filter core of described duplex filter 8 is 100 orders.On described flushing arm 5, be respectively provided with a stop valve 4.The material of described heat exchanger 7 is stainless steel, and the shell side of described heat exchanger 7 is provided with thermometer 9, and cleaning hose 6 is provided with pressure gauge 10.
The utility model is drawn the NHD solution of High Temperature High Pressure from the blind plate 2 of NHD solution pump 1 outlet end with conduit, after duplex filter 8 filters, cause and in heat exchanger 7, carry out heat exchange, make NHD solution temperature be down to 50 ℃ of left and right by 120 ℃, then by cleaning hose 6, rinse the rinse mouth 3 of mechanical seal that arm 5 enters two solution pumps 1 to the flushing of lowering the temperature of its sealing surface, thereby improved the working environment of sealing surface, improved the working life of machine envelope, guarantee the long-term operation of equipment, there is great economic benefit.
Above embodiment is not limited only to protection domain of the present utility model, all based on basic thought of the present utility model, modify or change all belong to protection domain of the present utility model.
Claims (4)
1. the mechanical seal device of flushing certainly of a NHD solution pump, comprise two solution pumps, it is characterized in that: the blind plate of described two solution delivery side of pump ends is all connected with the entry end of duplex filter by conduit, the outlet end of described duplex filter is connected with the shell side entry end of heat exchanger, the shell side outlet end of described heat exchanger is connected with cleaning hose, and the other end of described cleaning hose rinses arms by two and is connected with the rinse mouth of the mechanical seal of two solution pumps respectively; The tube side inlet/outlet of described heat exchanger is all connected with circulating pipe.
2. the mechanical seal device of flushing certainly of NHD solution pump according to claim 1, is characterized in that: the filter core of described duplex filter is 100 orders.
3. the mechanical seal device of flushing certainly of NHD solution pump according to claim 1, is characterized in that: on described flushing arm, be respectively provided with a stop valve.
4. the mechanical seal device of flushing certainly of NHD solution pump according to claim 1, is characterized in that: the material of described heat exchanger is stainless steel, and the shell side of described heat exchanger is provided with thermometer, and cleaning hose is provided with pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345430.2U CN204003426U (en) | 2014-06-26 | 2014-06-26 | A kind of mechanical seal device of flushing certainly of NHD solution pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345430.2U CN204003426U (en) | 2014-06-26 | 2014-06-26 | A kind of mechanical seal device of flushing certainly of NHD solution pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003426U true CN204003426U (en) | 2014-12-10 |
Family
ID=52043433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345430.2U Expired - Fee Related CN204003426U (en) | 2014-06-26 | 2014-06-26 | A kind of mechanical seal device of flushing certainly of NHD solution pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847650A (en) * | 2015-05-25 | 2015-08-19 | 濮阳市盛源能源科技股份有限公司 | Method for improving mechanical sealing performance in high-temperature environment |
-
2014
- 2014-06-26 CN CN201420345430.2U patent/CN204003426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847650A (en) * | 2015-05-25 | 2015-08-19 | 濮阳市盛源能源科技股份有限公司 | Method for improving mechanical sealing performance in high-temperature environment |
| CN104847650B (en) * | 2015-05-25 | 2017-01-18 | 濮阳市盛源能源科技股份有限公司 | Method for improving mechanical sealing performance in high-temperature environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |