CN204961277U - A device for reducing pump mechanical seal temperature - Google Patents
A device for reducing pump mechanical seal temperature Download PDFInfo
- Publication number
- CN204961277U CN204961277U CN201520687008.XU CN201520687008U CN204961277U CN 204961277 U CN204961277 U CN 204961277U CN 201520687008 U CN201520687008 U CN 201520687008U CN 204961277 U CN204961277 U CN 204961277U
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- Prior art keywords
- pump
- valve
- pipeline
- tubing
- cut
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- Expired - Fee Related
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Abstract
The utility model provides a device for reducing pump mechanical seal temperature, circulation sail pipeline is crossed the pipeline and is divided into two the tunnel, respectively connecting tube pump A and tubing pump B, and the by -pass valve is installed to trip valve and back trip valve before being provided with around tubing pump B and tubing pump A on the pipeline, combines punishment to be two the tunnel in the pipeline export of no. Two tubing pumps, is connected with the surge damping valve on the way, and the surge damping valve passes through the pipe connection recovery house steward of circulating, another way is divided into two sections, and one section through the mouth of a river on the pipeline connection A pump circulation, the mouth of a river on another way connection B pump circulation, in the normal operating, two one division one tubing pumps are equipped with, opening around trip valve of tubing pump A or B, closing the by -pass valve, start tubing pump A or B, tubing pump outlet pressure is stablized through tubing pump export surge damping valve to the circulating water of the sail of self -loopa in the future pipeline, the utility model discloses effectively reduce boiler feed pump mechanical seal's temperature, prolonged mechanical seal life, guaranteed the characteristics of boiler feed pump safety, even running.
Description
Technical field
The utility model relates to a kind of technology for reducing pump mechanical sealing temperature, particularly a kind of device for reducing pump mechanical sealing temperature.
Background technique
In methanol synthesizing process, the heat that reaction produces need be taken away by boiler feed water.The boiler feed water out-of-bounds come enters drum, after boiler feed pump pressurization, send into board-like Tube Sheet of Heat Exchanger side bottom methyl alcohol synthetic reactor, reaction heat is removed, thus make boiler feed water partial gasification, the steam water interface of two stream phases enters drum from methanol-fueled CLC top of tower, and be separated in drum, steam sends battery limit (BL).
Boiler feed water pump intake medium temperature is higher, generally at about 200 DEG C, causes pump mechanical sealing place temperature higher.Prior art is lowered the temperature by circulating water, in running, because of the upper water of device circulation with circulating backwater pressure reduction is little, circulating water caliber carefully, the cooling effect needed for mechanical seal cannot be met, cause boiler feed pump anti-drive end mechanical seal temperature too high, reach about 120 DEG C, adopt and carry out cooling down at mechanical seal external refrigeration water, the temperature reducing mechanical seal can be reached, but water consumption per hour is about 15m3/h, increase consumption, too increase sewage load simultaneously.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of device for reducing pump mechanical sealing temperature, there is system simple, cheap, Be very effective, reliable, effectively reduce the temperature of boiler feed water pump mechanical sealing, extend mechanical seal working life, ensure that the feature of boiler feed pump safety, smooth running.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of device for reducing pump mechanical sealing temperature, comprise pipeline mounted pump A and pipeline mounted pump B, circulation water-line 8 is divided into two-way, one connecting pipe road pump A, another connecting pipe road pump B, before the front and back of pipeline mounted pump B are respectively arranged with, cut-off valve 1 and rear cut-off valve 1, the pipeline of pipeline mounted pump B is provided with by-pass line, pipeline is provided with by-pass valve 1; Cut-off valve 24 and rear cut-off valve 26 before the front and back of pipeline mounted pump A are respectively arranged with, the pipeline of pipeline mounted pump A is provided with by-pass line, pipeline is provided with by-pass valve 25, two-way is divided in the pipeline outlet junction of two-way pipeline mounted pump, be connected with pressure maintaining valve 7 on the way, pressure maintaining valve 7 connects circulating backwater house steward 9 by pipeline; Another road is divided into two sections, and one section connects pump A circulation filling pipe end 10 by pipeline, and another road connects pump B circulation filling pipe end 11.
Described pressure maintaining valve 7 is 3/4 cun of hand sluice valve, and described by-pass valve 1, front cut-off valve 1, rear cut-off valve 1, front cut-off valve 24, by-pass valve 25 and rear cut-off valve 26 is 2 cun of hand sluice valves.
The beneficial effects of the utility model:
The utility model proposes a kind of technology for reducing pump mechanical sealing temperature, by transforming in original design, mechanical seal cooling water (circulating water) pressure of boiler feed pump is improved, flow velocity increases, improve heat transfer effect, effectively reduce boiler feed water pump mechanical sealing temperature.This system architecture is simple, cheap, reliable, Be very effective.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: a kind of device for reducing pump mechanical sealing temperature, comprise pipeline mounted pump A and pipeline mounted pump B, circulation water-line 8 is divided into two-way, one connecting pipe road pump A, another connecting pipe road pump B, before the front and back of pipeline mounted pump B are respectively arranged with, cut-off valve 1 and rear cut-off valve 1, the pipeline of pipeline mounted pump B is provided with by-pass line, pipeline is provided with by-pass valve 1; Cut-off valve 24 and rear cut-off valve 26 before the front and back of pipeline mounted pump A are respectively arranged with, the pipeline of pipeline mounted pump A is provided with by-pass line, pipeline is provided with by-pass valve 25, two-way is divided in the pipeline outlet junction of two-way pipeline mounted pump, be connected with pressure maintaining valve 7 on the way, pressure maintaining valve 7 connects circulating backwater house steward 9 by pipeline; Another road is divided into two sections, and one section connects pump A circulation filling pipe end 10 by pipeline, and another road connects pump B circulation filling pipe end 11.
Described pressure maintaining valve 7 is 3/4 cun of hand sluice valve, and described by-pass valve 1, front cut-off valve 1, rear cut-off valve 1, front cut-off valve 24, by-pass valve 25 and rear cut-off valve 26 is 2 cun of hand sluice valves.
Working principle of the present utility model:
In normal operation, two pipeline mounted pumps one are opened one standby.The front and back cut-off valve of opening conduits pump A or pump B, close by-pass valve, start pipeline mounted pump A or pump B, the circulating water of the water-line of self-loopa in the future 8, after pipeline mounted pump pressurization, pressure improves, flow velocity increases, improve heat transfer effect, effectively reduce boiler feed water pump mechanical sealing temperature, and stablize pipeline mounted pump outlet pressure by pipeline mounted pump outlet pressure maintaining valve 7.When process pump fault, by switching standby pump operation, after being closed by cut-off valve before and after the pipeline mounted pump of fault, surrender maintenance.
Claims (3)
1. the device for reducing pump mechanical sealing temperature, comprise pipeline mounted pump A and pipeline mounted pump B, circulation water-line (8) is divided into two-way, one connecting pipe road pump A, another connecting pipe road pump B, is characterized in that, cut-off valve one (2) and rear cut-off valve one (3) before the front and back of pipeline mounted pump B are respectively arranged with, the pipeline of pipeline mounted pump B is provided with by-pass line, pipeline is provided with by-pass valve one (1); Cut-off valve two (4) and rear cut-off valve two (6) before the front and back of pipeline mounted pump A are respectively arranged with, the pipeline of pipeline mounted pump A is provided with by-pass line, pipeline is provided with by-pass valve two (5), two-way is divided in the pipeline outlet junction of two-way pipeline mounted pump, be connected with pressure maintaining valve (7) on the way, pressure maintaining valve (7) connects circulating backwater house steward (9) by pipeline; Another road is divided into two sections, and one section connects pump A circulation filling pipe end (10) by pipeline, and another road connects pump B circulation filling pipe end (11).
2. a kind of device for reducing pump mechanical sealing temperature according to claim 1, is characterized in that, described pressure maintaining valve (7) is 3/4 cun of hand sluice valve.
3. a kind of device for reducing pump mechanical sealing temperature according to claim 1, it is characterized in that, described by-pass valve one (1), front cut-off valve one (2), rear cut-off valve one (3), front cut-off valve two (4), by-pass valve two (5) and rear cut-off valve two (6) are 2 cun of hand sluice valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520687008.XU CN204961277U (en) | 2015-09-07 | 2015-09-07 | A device for reducing pump mechanical seal temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520687008.XU CN204961277U (en) | 2015-09-07 | 2015-09-07 | A device for reducing pump mechanical seal temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961277U true CN204961277U (en) | 2016-01-13 |
Family
ID=55056348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520687008.XU Expired - Fee Related CN204961277U (en) | 2015-09-07 | 2015-09-07 | A device for reducing pump mechanical seal temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577667A (en) * | 2020-05-26 | 2020-08-25 | 甘肃银光化学工业集团有限公司 | Mechanical seal cooling device of condensed water recovery pump |
-
2015
- 2015-09-07 CN CN201520687008.XU patent/CN204961277U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577667A (en) * | 2020-05-26 | 2020-08-25 | 甘肃银光化学工业集团有限公司 | Mechanical seal cooling device of condensed water recovery pump |
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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: 20160113 Termination date: 20200907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |