CN204509513U - A kind of novel evacuated jet pump device - Google Patents
A kind of novel evacuated jet pump device Download PDFInfo
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- CN204509513U CN204509513U CN201520182949.8U CN201520182949U CN204509513U CN 204509513 U CN204509513 U CN 204509513U CN 201520182949 U CN201520182949 U CN 201520182949U CN 204509513 U CN204509513 U CN 204509513U
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Abstract
A kind of novel evacuated jet pump device of the utility model adopts the scheme of first order jet pump A primary pump in parallel again on original vacuum jet pump, because the diameter of the first original condenser A is less than normal, so increase a condenser B again after the jet pump B increased, namely independent parallel system is become, can greatly reduce and run interference, increase ball valve in condenser B gas outlet and leakage fluid dram, the vacuum system of this increase when load is less, can be closed, reduce energy consumption.The utility model device improves the vacuum capability of vacuum jet pump, improves the ability to ward off risks of device simultaneously; Effectively avoid the economic loss that product degradation causes, save production cost.
Description
Technical field
The present invention relates to a kind of experimental branch line equipment, specifically a kind of novel evacuated jet pump device of polyester device.
Background technology
In smelt direct spinning terylene long filament production process, the five autoclaves process of the Shi Zhongfang institute that general polyester device adopts, two esterifying kettles, three polycondensation vessels---the first reaction kettle of the esterification, the second reaction kettle of the esterification, the first prepolymerization reaction still, the second prepolymerization reaction still, whole batch condensation polymerization reactor.Wherein the second prepolymerization reaction still and whole batch condensation polymerization reactor share a vacuum jet pump, and vacuum jet pump adopts three grades of injections, and the power source of jet pump is glycol steam.Whole batch condensation polymerization reactor is connected to one-level ejection end; Second prepolymerization reaction still is connected to two-stage injection end, and whole batch condensation polymerization reactor and the second prepolymerization reaction still all adopt glycol steam vacuum breaker form to control the pressure of reactor.
Vacuum jet pump has the work of certain pressure intensity, and steam is by Laval nozzle, and decompressing speed-increasing sprays into mixing chamber with supersonic speed, with taken out medium and mixed, carry out energy exchange, mixed gas enters diffuser, deceleration supercharging, in order to reduce the load of bleeding of rear class pump, configuration condenser, by there being the two media convection current of a fixed difference difference, carries out heat exchange, reach condensing high temperature medium object, be discharged to atmospheric pressure.
Along with the increase of plant running time, the operating mode of vacuum jet pump is also deteriorated gradually, and vacuum breaker valve opening turns down gradually, and valve is all turned off and still be can not meet vacuum even sometimes, so just causes terminal polymerization kettle viscosity fluctuation comparatively large, finally affects product quality.Once run into emergency case on existing device basic, the serious consequence such as will cause that product degradation is even stopped work.
Summary of the invention
The purpose of this utility model is to provide a kind of novel evacuated jet pump device, improves the vacuum capability of vacuum jet pump, improves the ability to ward off risks of device, reduces economic loss, ensures the normal production of polyester device.
A kind of novel evacuated jet pump device, comprise first order jet pump A, first condenser A, first condenser A barometric pipe, stainless steel ball valve, first order jet pump A is connected with the first condenser A by stainless steel ball valve, first condenser A barometric pipe connects in the lower end of the first condenser A, it is characterized in that having increased jet pump B newly, condenser B, condenser B gas outlet, first ball valve, second ball valve, tapping line, jet pump B is connected with condenser B, condenser B is connected with tapping line by the first ball valve, tapping line is connected with the first condenser A barometric pipe, condenser B gas outlet is connected with the first condenser A by the second ball valve, jet pump B and first order jet pump A parallel running, first order jet pump is vertically also through newly-increased condenser B.
Described condenser B gas outlet, is characterized in that with first order jet pump A be 45° angle, is positioned at the upper right corner of condenser B.
Airless injection pump installation of the present utility model adopts the scheme of first order jet pump A primary pump in parallel again on original vacuum jet pump, because the diameter of the first original condenser A is less than normal, so increase a condenser B again after the jet pump B increased, namely independent parallel system is become, can greatly reduce and run interference, increase ball valve in condenser B gas outlet and leakage fluid dram, the vacuum system of this increase when load is less, can be closed, reduce energy consumption.
Progressive effect of the present utility model is:
1. improve the vacuum capability of vacuum jet pump, improve the ability to ward off risks of device simultaneously.
2. effectively avoid the economic loss that product degradation causes, save production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device.
Wherein: 1 is first order jet pump A; 2 is the first condenser A; 3 is stainless steel ball valve; 4 is the first condenser A barometric pipe; ; 5 is jet pump B; 6 is condenser B; 7 is condenser B gas outlet; 8 is tapping line; 9 is the first ball valve; 10 is the second ball valve; 11 is two-stage injection pump.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in detail.
Below by embodiment, the utility model is specifically described; it is to be noted; following examples are just for being further described the utility model; can not be interpreted as the restriction to the utility model protection domain, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the invention described above content to the present invention.
In existing 200,000 tons of polyester devices, for realizing the technological requirement of the vacuum capability reducing reaction temperature and improve vacuum jet pump, our company technical staff has invented a kind of novel evacuated jet pump device, comprise first order jet pump A (1), first condenser A (2), first condenser A barometric pipe (4), stainless steel ball valve (4), jet pump B (5), condenser B (6), condenser B gas outlet (7), first ball valve (9), second ball valve (10), tapping line (8), first order jet pump A is connected with the first condenser A by stainless steel ball valve, first condenser A barometric pipe connects in the lower end of the first condenser A, jet pump B is connected with condenser B, condenser B is connected with tapping line by the first ball valve, and tapping line is connected with the first condenser A barometric pipe, and condenser B gas outlet is connected with the first condenser A by the second ball valve, on-condensible gas is discharged, is taken away by two-stage injection pump, jet pump B and first order jet pump A parallel running, first order jet pump is vertically also through newly-increased condenser B.
Newly-increased vacuum jet pump average extraction amount is 50kg/h, suction pressure is 80 Pa, discharge pressure is 660Pa, improve exhaust capacity, that is constant at production load, when response parameter does not adjust, the gas flow change out of real reaction still is little, and now newly increase the vacuum that jet pump B can improve practical operation, strengthen and regulate surplus, and harmful effect is not had to second and third grade of ejector vacuum pump use.But when producing load and improving, reactor gas flow out can increase, and now can have an impact to second and third grade of vacuum jet pump, but unnecessary gas can be taken away, on whole vacuum system without any impact after the jet pump B increased.
Airless injection pump installation of the present utility model not only increases the service ability of polyester device vavuum pump, but also produces the raising of load for device and lay a good foundation, and has saved production cost.
Claims (2)
1. a novel evacuated jet pump device, comprise first order jet pump A, first condenser A, first condenser A barometric pipe, stainless steel ball valve, first order jet pump A is connected with the first condenser A by stainless steel ball valve, first condenser A barometric pipe connects in the lower end of the first condenser A, it is characterized in that having increased jet pump B newly, condenser B, condenser B gas outlet, first ball valve, second ball valve, tapping line, jet pump B is connected with condenser B, condenser B is connected with tapping line by the first ball valve, tapping line is connected with the first condenser A barometric pipe, condenser B gas outlet is connected with the first condenser A by the second ball valve, jet pump B and first order jet pump A parallel running, first order jet pump is vertically also through newly-increased condenser B.
2. airless injection pump installation according to claim 1, is characterized in that described condenser B gas outlet and first order jet pump A are 45° angle, is positioned at the upper right corner of condenser B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182949.8U CN204509513U (en) | 2015-03-30 | 2015-03-30 | A kind of novel evacuated jet pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182949.8U CN204509513U (en) | 2015-03-30 | 2015-03-30 | A kind of novel evacuated jet pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204509513U true CN204509513U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520182949.8U Active CN204509513U (en) | 2015-03-30 | 2015-03-30 | A kind of novel evacuated jet pump device |
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| CN (1) | CN204509513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961033A (en) * | 2019-12-09 | 2020-04-07 | 中国石油天然气集团有限公司 | High-stability high-vacuum method and high-vacuum system suitable for polycarbonate production |
-
2015
- 2015-03-30 CN CN201520182949.8U patent/CN204509513U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961033A (en) * | 2019-12-09 | 2020-04-07 | 中国石油天然气集团有限公司 | High-stability high-vacuum method and high-vacuum system suitable for polycarbonate production |
| CN110961033B (en) * | 2019-12-09 | 2023-12-29 | 中国石油天然气集团有限公司 | High-stability high-vacuum method and high-vacuum system suitable for polycarbonate production |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170621 Address after: 215228 Sheng Hong fiber, Shengze Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Sheng Hong Fiber Co., Ltd. Address before: 215228, Shengze Town, Wujiang District, Jiangsu City, Suzhou Province Hong Sheng Technology Patentee before: Jiangsu Shenghong Science and Technology Co., Ltd. |