CN110360164A

CN110360164A - Liquid changes pressure device

Info

Publication number: CN110360164A
Application number: CN201810310858.6A
Authority: CN
Inventors: 吴越; 任懿
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-09
Filing date: 2018-04-09
Publication date: 2019-10-22
Anticipated expiration: 2038-04-09
Also published as: CN110360164B

Abstract

The invention discloses a kind of liquid to change pressure device, and it includes: shell that the liquid, which changes pressure device, and the shell includes: pumping section, the first import and first outlet that the pumping section has first chamber and is connected to the first chamber；With turbine portion, the second import, secondary inlet and the second outlet that the turbine portion has second chamber and is connected to the second chamber, the angle of the opening direction of the opening direction and secondary inlet of second import is greater than 90 degree and is less than or equal to 180 degree, wherein the shell has axis accommodating chamber；First impeller and the second impeller, first impeller are located in the first chamber, and second impeller is located in the second chamber；Axis, the axis are located in the axis accommodating chamber；And bearing, the bearing are located in the axis accommodating chamber, the bearing is set on the axis.Liquid according to an embodiment of the present invention, which changes pressure device, has many advantages, such as that treating capacity is big, operating range is big, operating flexibility is big, it is more to recover energy.

Description

Liquid changes pressure device

Technical field

The present invention relates to liquid to change pressure device.

Background technique

Liquid in the related technology changes pressure device and haves the defects that operating flexibility is small.

Summary of the invention

It is of the existing technology the purpose of the invention is to overcome the problems, such as, liquid is provided and changes pressure device, which changes pressure Device has the advantages that operating flexibility is big.

To achieve the goals above, the present invention provides a kind of liquid and changes pressure device, and it includes: shell that the liquid, which changes pressure device, Body, the shell include: pumping section, and the pumping section has first chamber and the first import for being connected to the first chamber and the One outlet；With turbine portion, the turbine portion have second chamber and be connected to the second chamber the second import, assist into Mouth and second outlet, the opening direction of second import and the angle of the opening direction of the secondary inlet are greater than 90 degree and small In being equal to 180 degree, wherein the shell has axis accommodating chamber；First impeller and the second impeller, first impeller are located at described In first chamber, second impeller is located in the second chamber；Axis, the axis are located in the axis accommodating chamber；And axis It holds, the bearing is located in the axis accommodating chamber, and the bearing is set on the axis.

Liquid according to an embodiment of the present invention, which changes pressure device, has the advantages that operating range is big, operating flexibility is big.

Preferably, the turbine portion further has a first runner and second flow channel, the first end of the first runner with Second inlet communication, the second end of the first runner are connected to the second chamber, the first end of the second flow channel It being connected to the secondary inlet, the second end of the second flow channel is connected to the second chamber, wherein the first runner Extending direction is identical as the opening direction of second import, and the extending direction of the second flow channel is opened with the secondary inlet Mouth direction is identical, and the angle of the extending direction of the first runner and the extending direction of the second flow channel is greater than 90 degree and is less than Equal to 180 degree.

Preferably, the extending direction of the first runner and the angle of the extending direction of the second flow channel are more than or equal to 120 degree and it is less than or equal to 180 degree, it is preferable that the extending direction of the extending direction of the first runner and the second flow channel Angle is more than or equal to 150 degree and is less than or equal to 180 degree, it is further preferred that the extending direction of the first runner and described second The angle of the extending direction of runner is equal to 180 degree.

Preferably, it further comprises regulating valve that the liquid, which changes pressure device, the import of the regulating valve with described second into Mouth connection, the outlet of the regulating valve is connected to the secondary inlet.

Preferably, the center line of the first runner and the first circumference are tangent, the center line of the second flow channel with it is described First circumference is tangent, wherein the center of circle of first circumference is located on the rotation axis of second impeller, first circumference Positioned at the outside of second impeller.

Preferably, the ratio between radius of the radius of first circumference and second impeller is (1.1-1.5): 1.

Preferably, the shell further has lubricant channel, and the lubricant channel is connected to the axis accommodating chamber, The axis accommodating chamber is connected to each of the first chamber and the second chamber, is limited between the bearing and the axis Make lubricating fluid runner.

Preferably, the internal perisporium of the bearing is equipped with holding tank, and the bottom wall of the holding tank is equipped with through-hole, described logical Hole is connected to the lubricant channel, and it further comprises stabilizer that the liquid, which changes pressure device, and the stabilizer is set in described On axis, wherein a part of the stabilizer is located in the holding tank, described a part and the receiving of the stabilizer The bottom wall and side wall of slot are spaced apart.

Preferably, the turbine portion further has third flow channel, and the first end of the third flow channel goes out with described second Mouthful connection, the second end of the third flow channel is connected to the second chamber, the extending direction of the third flow channel and described the The opening direction of two outlets is identical, and the extending direction of the third flow channel and the angle of the extending direction of the first runner are equal to 90 degree, the extending direction of the third flow channel and the angle of the extending direction of the second flow channel are equal to 90 degree.

Preferably, it further comprises filter that the liquid, which changes pressure device, and the filter has third import and third Outlet, wherein the pipeline being connected with the third import and the pipeline being connected with the first outlet and with second import At least one of connected pipeline is connected, and the third outlet is connected to the lubricant channel；Alternatively, the liquid changes pressure Device further comprises: filter, and there is the filter third import and third to export；With the first booster pump, described first Booster pump has the 4th import and the 4th outlet, the 4th import and the third outlet, the 4th outlet and institute The first inlet communication is stated, wherein being connected with the pipeline of lubricant channel connection and the pipeline being connected with the first outlet.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that liquid according to an embodiment of the present invention changes pressure device；

Fig. 2 is the cross-sectional view that liquid according to an embodiment of the present invention changes pressure device；

Fig. 3 is the enlarged drawing of the a-quadrant of Fig. 2；

Fig. 4 is the structural schematic diagram that liquid according to an embodiment of the present invention changes pressure device；

Fig. 5 is the cross-sectional view that liquid according to an embodiment of the present invention changes pressure device；

Fig. 6 is the cross-sectional view that liquid according to an embodiment of the present invention changes pressure device；

Fig. 7 is the structural schematic diagram of chemical reaction system according to an embodiment of the invention；

Fig. 8 is the partial structural diagram of chemical reaction system according to an embodiment of the invention；

Fig. 9 is the structural schematic diagram of chemical reaction system according to another embodiment of the invention.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

Below with reference to the accompanying drawings it describes liquid according to an embodiment of the present invention and changes pressure device 1.As shown in figs 1 to 6, according to this It includes shell 10, the first impeller 71, the second impeller 72, axis 20 and bearing 30 that the liquid of inventive embodiments, which changes pressure device 1,.

Shell 10 includes pumping section 110 and turbine portion 120.Pumping section 110 have first chamber 111 and with first chamber 111 The first import 112 and first outlet 113 of connection.Turbine portion 120 has second chamber 121 and is connected to second chamber 121 The second import 122, secondary inlet 123 and second outlet 127.Second opening direction of import 122 and opening for secondary inlet 123 The angle in mouth direction is greater than 90 degree and is less than or equal to 180 degree.First impeller 71 is located in first chamber 111, and the second impeller 72 is set In second chamber 121.Wherein, shell 10 has axis accommodating chamber 130, and axis 20 is located in axis accommodating chamber 130, and bearing 30 is located at axis In accommodating chamber 130, bearing 30 is set on axis 20.

Liquid according to an embodiment of the present invention changes pressure device 1 by setting secondary inlet 123, so as to so that more liquid Body changes pressure device 1 (turbine portion 120) by liquid, thus can not only increase operating range and behaviour that liquid changes pressure device 1 Make elasticity, and the energy regenerating amount that liquid changes pressure device 1 can be improved, it can so that liquid is changed pressure device 1 and recycle more Energy.

Moreover, liquid according to an embodiment of the present invention changes pressure device 1 by making the opening direction and auxiliary of the second import 122 The angle of the opening direction of import 123 can be greater than 90 degree and be less than or equal to 180 degree, so as to reduce from the second import 122 Shock, interference and the overload that the liquid of entrance is generated with the liquid entered from secondary inlet 123, it is possible thereby to make more liquid Pressure device 1 is changed by liquid.

Specifically, by setting secondary inlet 123 and making the second import 122 compared with being not provided with secondary inlet 123 Opening direction and the angle of opening direction of secondary inlet 123 be less than equal 90 degree, the liquid that pressure device 1 is changed by liquid can be made The scale of construction increases 10%-15%.Compared with being not provided with secondary inlet 123, by setting secondary inlet 123 and make the second import 122 Opening direction and the angle of opening direction of secondary inlet 123 be greater than 90 degree and less than or equal to 180 degree, can make to pass through liquid The amount of liquid for changing pressure device 1 (turbine portion 120) increases 25%-50%.

Therefore, liquid according to an embodiment of the present invention changes pressure device 1 with treating capacity is big, operating range is big, operating flexibility Greatly, it recovers energy the advantages that more.

Below with reference to the accompanying drawings it describes liquid according to an embodiment of the present invention and changes pressure device 1.As shown in figs 1 to 6, according to this It includes shell 10, axis 20 and bearing 30 that the liquid of inventive embodiments, which changes pressure device 1,.

Shell 10 includes pumping section 110 and turbine portion 120.Pumping section 110 have first chamber 111 and with first chamber 111 The first import 112 and first outlet 113 of connection.Turbine portion 120 has second chamber 121 and is connected to second chamber 121 The second import 122 and second outlet 127.Wherein, shell 10 has axis accommodating chamber 130 and lubricant channel 140, axis accommodating chamber 130 are connected to each of first chamber 111 and second chamber 121, and lubricant channel 140 is connected to axis accommodating chamber 130.

Axis 20 is located in axis accommodating chamber 130, and bearing 30 is located in axis accommodating chamber 130, and bearing 30 is set on axis 20, bearing Lubricating fluid runner 40 is limited between 30 and axis 20.Since axis 20 and bearing 30 are all located in axis accommodating chamber 130, lubricating fluid Runner 40 also is located in axis accommodating chamber 130.

The greasing that liquid according to an embodiment of the present invention changes pressure device 1 is briefly described below with reference to Fig. 1-Fig. 6.

Since lubricant channel 140 is connected to axis accommodating chamber 130, lubricating fluid can be added by lubricant channel 140 Enter into axis accommodating chamber 130.Since lubricating fluid runner 40 is located in axis accommodating chamber 130, enter in axis accommodating chamber 130 Lubricating fluid can be flowed into lubricating fluid runner 40, to be lubricated to axis 20 and bearing 30.Due to axis accommodating chamber 130 and The lubricating fluid that each of one chamber 111 and second chamber 121 are connected to, therefore leave lubricating fluid runner 40 enters the first chamber In room 111 and/or second chamber 121, liquid is left finally by first outlet 113 and/or second outlet 127 and changes pressure device 1.

Specifically, leaving lubricating fluid runner 40 when the pressure of first chamber 111 is lower than the pressure of axis accommodating chamber 130 Lubricating fluid enter in first chamber 111, and leave liquid by first outlet 113 and change pressure device 1.When second chamber 121 Pressure be lower than axis accommodating chamber 130 pressure when, the lubricating fluid for leaving lubricating fluid runner 40 enters in second chamber 121, and Liquid, which is left, by second outlet 127 changes pressure device 1.When the pressure of first chamber 111 and the pressure of second chamber 121 are below When the pressure of axis accommodating chamber 130, a part of lubricating fluid is entered in first chamber 111, and leaves liquid by first outlet 113 Body changes pressure device 1, and the rest part of lubricating fluid enters in second chamber 121, and leaves liquid by second outlet 127 and change pressure Device 1.

When existing liquid changes pressure device for chemical field, need to enter to all from the first import or the second import The liquid changed in pressure device to liquid is filtered, i.e., is first filtered to the liquid, the liquid is transported to liquid again changes pressure In device, filtration yield can be greatly increased in this way, and then greatly increases the operating cost that liquid changes pressure device.Moreover, existing Liquid change pressure device and can not contain the lubricating fluid of solid particle from extraneous introduce.

Liquid according to an embodiment of the present invention changes what pressure device 1 was connected to by setting on the housing 10 with axis accommodating chamber 130 Lubricant channel 140, so as to which lubricating fluid is added into axis accommodating chamber 130 by lubricant channel 140.

When changing the liquid of pressure device 1 as when lubricating fluid using entering or leave liquid, it is only necessary to a small amount of liquid is drawn, And the liquid of extraction is filtered, the filtered liquid is added in axis accommodating chamber 130 by lubricant channel 140. Further, it is also possible to introduce the lubricating fluid without containing solid particle from extraneous.It is possible thereby to greatly reduce filtration yield, even without Filtering, so as to greatly reduce the operating cost that liquid changes pressure device 1.

Moreover, because the lubricating fluid for lubrication is added in axis accommodating chamber 130 by lubricant channel 140, because This can measure the flow of the lubricating fluid.Gap when axis 20 and bearing 30 are not worn, between axis 20 and bearing 30 Be it is constant, i.e. the area of the cross section of lubricating fluid runner 40 is constant, therefore when the pressure of the lubricating fluid is constant, the profit The flow of synovia is constant.

If axis 20 and bearing 30 are worn, the gap between axis 20 and bearing 30 becomes larger, and then in the lubricating fluid Pressure it is constant in the case where, cause the flow of the lubricating fluid to become larger.Moreover, in the case where the pressure of the lubricating fluid is constant, The degree of wear of axis 20 and bearing 30 is bigger, and the flow of the lubricating fluid is bigger.It is accommodated from there through setting on the housing 10 with axis The lubricant channel 140 that chamber 130 is connected to comes so as to flow through the flow of the lubricating fluid of lubricant channel 140 by monitoring Effectively, the abrasion condition of axis 20 and bearing 30 is easily monitored.

Therefore, liquid according to an embodiment of the present invention change pressure device 1 have lubricating fluid dosage is few, filtration yield is small, operation at The advantages that this is low, axis is not easy to wear, long service life, effective abrasion condition for monitoring axis 20 and bearing 30.

As shown in figs. 1-9, in some embodiments of the invention, chemical reaction system 100 may include pressure vessel Pressure device 1 is changed with liquid, which can have liquid-inlet and liquid outlet.

Chemical reaction system 100 can be gas wet cleaning system, such as acidic chemical reaction system.Preferably, sour Property chemical reaction system can be amine liquid system.As shown in Figure 7 and Figure 8, chemical reaction system 100 may include that liquid changes press fitting Set 1, absorption tower 2 and regenerator 3.Absorption tower 2 can have absorbing liquid import 202 and absorbing liquid outlet 203, and regenerator 3 can be with With liquid import 301 to be generated and regenerated liquid outlet 302.That is, the pressure vessel can be absorption tower 2.

Wherein, the first import 112 of pumping section 110 can be exported with the regenerated liquid of regenerator 3 and 302 is connected to, and the of pumping section 110 One outlet 113 can be connected to the absorbing liquid import 202 on absorption tower 2.Second import 122 in turbine portion 120 can be with absorption tower 2 203 connection of absorbing liquid outlet, the second outlet 127 in turbine portion 120 can be connected to the liquid import 301 to be generated of regenerator 3.

Absorbing liquid absorbs the gas to be absorbed (such as sour gas) in gas to be processed in absorption tower 2, and absorption needs The absorbing liquid for absorbing gas, which by liquid changes pressure device 1 and is transported to regenerator 3, to be regenerated, and obtains regenerated liquid.The regenerated liquid Pressure device 1 can be changed by liquid and is transported to absorption tower 2, to absorb the gas to be absorbed in gas to be processed.Liquid changes pressure Device 1 can recycle the energy for leaving the absorbing liquid on absorption tower 2, and the energy transmission of recycling is given to the regeneration for leaving regenerator 3 Liquid.

Chemical reaction system 100 can be also used for carrying out glycol dehydration, glycol dehydration, regenerated process and above-mentioned amine It is almost the same that liquid absorbs gas, regenerated process, therefore no longer describes in detail.

As shown in figure 9, chemical reaction system 100 can also be hydrogenation system.Chemical reaction system 100 may include adding hydrogen 2 ' of finishing reactor, 3 ' of high pressure knockout drum, 6 ' of 4 ' of low pressure separation pot, 5 ' of preheater and reaction heating furnace, i.e., the pressure vessel can To be 3 ' of high pressure knockout drum.

Wherein, the first import 112 of pumping section 110 is used to enter new raw material, and the first outlet 113 of pumping section 110 can be with The liquid-inlet of 5 ' of preheater is connected to.The liquid-inlet of 6 ' of reaction heating furnace can be connected to the liquid outlet of 5 ' of preheater, instead Answering the liquid outlet of 6 ' of heating furnace can be connected to the liquid-inlet of 2 ' of hydrofining reactor.

The discharge port of 2 ' of hydrofining reactor can be connected to the feed inlet of 3 ' of high pressure knockout drum.The of turbine portion 120 Two imports 122 can be connected to the liquid outlet of 3 ' of high pressure knockout drum, and the second outlet 127 in turbine portion 120 can be with low pressure point Liquid-inlet connection from 4 ' of tank.

Hydrotreated product carries out gas-liquid separation in 3 ' of high pressure knockout drum, and the product liquid after separation changes pressure by liquid Device 1 is transported to 4 ' of low pressure separation pot and is further separated, and obtains various products.Liquid change pressure device 1 can recycle from The energy of the product liquid of 3 ' of high pressure knockout drum is opened, and gives the energy transmission of recycling to new raw material.

As shown in figs 1 to 6, it includes shell 10, axis 20 and bearing 30 that liquid, which changes pressure device 1,.Shell 10 may include pumping section 110 and turbine portion 120.Pumping section 110 can have first chamber 111 and the first import 112 for being connected to first chamber 111 and First outlet 113.Turbine portion 120 can have second chamber 121 and the second import 122 for being connected to second chamber 121 and Second outlet 127.Shell 10 can have axis accommodating chamber 130, and axis 20 can be located in axis accommodating chamber 130, and bearing 30 can be set In axis accommodating chamber 130, bearing 30 can be set on axis 20.

Liquid according to an embodiment of the present invention changes pressure device 1 with lubricating fluid dosage is few, filtration yield is small, self-lubricating, operation It is at low cost, axis is not easy to wear, long service life, stability are strong, without mechanical seal, No leakage, wear-resistant, high-efficient, corrosion-resistant The advantages that.

It will be appreciated by persons skilled in the art that it can also include being located in first chamber 111 that liquid, which changes pressure device 1, First impeller 71 and the second impeller 72 for being located in second chamber 121, and the first impeller 71 and the second impeller 72 can be located at axis 20 On.First impeller 71 and the second impeller 72 can be known and can be installed to by known methods on axis 20.Specifically Ground, liquid, which changes pressure device 1, can be the first booster pump of turbine.

As shown in Figure 1-Figure 3, in one group of embodiment of the invention, shell 10 can further have lubricant channel 140, lubricant channel 140 can be connected to axis accommodating chamber 130.Axis accommodating chamber 130 can be with first chamber 111 and second chamber Each of 121 connections, can limit lubricating fluid runner 40 between bearing 30 and axis 20.Due to axis 20 and all positions of bearing 30 In in axis accommodating chamber 130, therefore lubricating fluid runner 40 also is located in axis accommodating chamber 130.

The inner end of lubricant channel 140 can be connected to by axis accommodating chamber 130 with lubricating fluid runner 40, lubricant channel 140 inner end can also be directly connected to lubricating fluid runner 40.Since lubricating fluid runner 40 is connected to axis accommodating chamber 130, When the inner end of lubricant channel 140 is directly connected to lubricating fluid runner 40, the inner end of lubricant channel 140 can pass through lubrication Liquid stream road 40 is connected to axis accommodating chamber 130.Lubricant channel 140 can penetrate through and (run through) shell 10, i.e. lubricant channel 140 Outer end can be opened wide.

As shown in figure 8, in one embodiment of the invention, liquid changes pressure device 1 (chemical reaction system 100) can be into One step includes filter 5, the first outlet tube 908, the first inlet tube 901 and the second inlet tube 911, and filter 5 can have Triple feed inlet 501 and third outlet 502.Wherein, the first outlet tube 908 can be connected with first outlet 113, the first inlet tube 901 First end can be connected with the second import 122, the second end of the first inlet tube 901 can be with the liquid outlet of the pressure vessel It is connected, the second inlet tube 911 can be connected with third import 501.Wherein, the second inlet tube 911 can be with the first outlet tube 908 It is connected at least one of the first inlet tube 901, third outlet 502 can be connected to lubricant channel 140.It is possible thereby to sharp It uses and flows into or out liquid and change the liquid of pressure device 1 as lubricating fluid, without introducing new lubricating fluid from extraneous, so as to To further decrease the operating cost that liquid changes pressure device 1.

Specifically, leaving absorption tower 2 or high pressure knockout drum when the second inlet tube 911 is connected with the first inlet tube 901 (pressure device 1 (second chamber 121) can be changed by 122 influent of the second import) a part of of liquid of 3 ' can enter Into filter 5.Since the third outlet of filter 5 502 can be connected to lubricant channel 140, the liquid this one Part can be entered in lubricating fluid runner 40 or axis accommodating chamber 130 for use in lubricating fluid in turn by lubricant channel 140.

When the second inlet tube 911 is connected with the first outlet tube 908, liquid is left from first outlet 113 and changes pressure device 1 The a part of of the liquid of (first chamber 111) can enter in filter 5, and then can be entered by lubricant channel 140 For use in lubricating fluid in lubricating fluid runner 40 or axis accommodating chamber 130.

When the second inlet tube 911 is connected and the second inlet tube 911 is connected with the first outlet tube 908 with the first inlet tube 901 When, leave (pressure device 1 can be changed by 122 influent of the second import) liquid of 3 ' of absorption tower 2 or high pressure knockout drum A part and can be entered in filter 5 from a part that first outlet 113 leaves the liquid that liquid changes pressure device 1, And then it can be entered by lubricant channel 140 in lubricating fluid runner 40 or axis accommodating chamber 130 for use in lubricating fluid.

When liquid changes pressure device 1 for amine liquid system, due to that cannot pollute poor amine liquid with rich amine solution, and poor amine liquid is entered There is no problem in rich amine solution, therefore the pipeline being connected with third import 501 and the pipeline being connected with first outlet 113 are connected, with The pipeline that the connected pipeline discord of third import 501 is connected with the second import 122 is connected.When liquid change pressure device 1 for plus hydrogen When system, since raw material enters in pumping section 110, product enters in turbine portion 120, and product is entered in raw material without big It influences, therefore the pipeline being connected with third import 501 and the pipeline being connected with the second import 122 are connected, with 501 phase of third import The pipeline that pipeline discord even is connected with first outlet 113 is connected.

When the liquid for entering pumping section 110 and the liquid for entering turbine portion 120 can mix, it is connected with third import 501 The pipeline that can be connected with first outlet 113 of pipeline be connected and the pipeline that is connected with third import 501 can with second The connected pipeline of import 122 is connected.

Lubricant channel 140 is connected to and should be interpreted broadly with third outlet 502, as long as passing through 502 outflow of third outlet Liquid can be entered by lubricant channel 140 in lubricating fluid runner 40 or axis accommodating chamber 130, just belong to lubricant channel 140 are connected to third outlet 502.

Specifically, lubricant channel 140 and third outlet 502 is connected to and may include, but it is not limited to, a. lubricant channel 140, which can export 502 with third, is connected directly；B. lubricant channel 140 can be connected by pipeline with third outlet 502, should The first end of pipeline can directly or indirectly (such as passing through other pipelines) be connected with third outlet 502, the second end of the pipeline Can directly it be connected with the import of lubricant channel 140；C. lubricant channel 140 can export 502 phases by pipeline and third Even, the first end of the pipeline directly or indirectly (such as passing through other pipelines) can export 502 with third and be connected, and the of the pipeline Two ends can be extend into lubricant channel 140；D. lubricant channel 140 can be connected by pipeline with third outlet 502, should The first end of pipeline can directly or indirectly (such as passing through other pipelines) be connected with third outlet 502, the second end of the pipeline Lubricant channel 140 can be passed through and extend into lubricating fluid runner 40 or axis accommodating chamber 130.

The third import is connected to at least one of first outlet 113 and the second import 122 and should also be as according to above-mentioned Mode is interpreted broadly, and is no longer described in detail herein.Hereinafter lubricant channel 140 is connected to and two with opening, through-hole Open communication should also be as being interpreted broadly in a manner mentioned above, no longer describe in detail herein.

In another embodiment of the present invention, liquid, which changes pressure device 1, can further include 601 He of the first booster pump Filter 5.Filter 5 can have third import 501 and third outlet 502, and the first booster pump 601 can have the 4th import With the 4th outlet.Wherein, the 4th import can export 502 with third and be connected to, and the 4th outlet can connect with the first import 112 Logical, the pipeline that can be connected with first outlet 113 with the pipeline that lubricant channel 140 is connected to is connected.

Preferably, the third import 501 of filter 5 can be exported with regenerated liquid and 302 is connected to, and the of the first booster pump 601 Four outlets can be connected to the first import 112 of pumping section 110.It is possible thereby to further increase the liquid for leaving first outlet 113 Pressure.Liquid, which changes pressure device 1, may further include the first thrust bearing (not shown) and the second thrust bearing (in figure It is not shown).First thrust bearing and second thrust bearing can be set on axis 20.It is possible thereby to utilize first thrust Bearing and second thrust bearing limit axis 20 in the axial direction and move axially along.

As shown in Figures 2 and 3, in some examples of the invention, holding tank can be equipped on the internal perisporium 31 of bearing 30 32, thus holding tank 32 can be connected to lubricating fluid runner 40.Liquid, which changes pressure device 1, may further include stabilizer 50, put down Weighing apparatus wheel 50 can be set on axis 20.Wherein, a part 51 of stabilizer 50 can be located in holding tank 32, and the one of stabilizer 50 Part 51 can be all spaced apart with the bottom wall 321 of holding tank 32 and side wall 322.That is, holding tank 32 can be annular, hold Receiving slot 32 can be along the circumferentially extending of bearing 30.

Wherein, the bottom wall 321 of holding tank 32 refer to holding tank 32 with its opposite wall that is open, the side wall of holding tank 32 322 refer to other walls in addition to bottom wall 321 of holding tank 32.

For ease of description, setting shaft 20 extends in left-right direction, and first chamber 111 is located at the left side of second chamber 121, Left and right directions is as shown in the arrow B in Fig. 3.Thus the side wall 322 of holding tank 32 includes left side wall 322a and right side wall 322b, is put down A part 51 of weighing apparatus wheel 50 in the lateral direction can be between left side wall 322a and right side wall 322b, and one of stabilizer 50 51 are divided can be all spaced apart with left side wall 322a and right side wall 322b.

Due to limiting lubricating fluid runner 40 between the internal perisporium and axis 20 of bearing 30, lubricating fluid runner 40 is entered Interior lubricating fluid is full of holding tank 32.That is, being full of between stabilizer 50 and the bottom wall 321 and side wall 322 of holding tank 32 Lubricating fluid.

When axis 20 has the tendency that being moved to the left, stabilizer 50 is applied by left side wall 322a of the lubricating fluid to holding tank 32 Active force to the left, and then the left side wall 322a of holding tank 32 applies reaction force to the right to stabilizer 50 by lubricating fluid, with Just limiting balance wheel 50 is moved to the left.When axis 20 has the tendency that moving right, stabilizer 50 is by lubricating fluid to holding tank 32 Right side wall 322b apply active force to the right, and then the right side wall 322b of holding tank 32 by lubricating fluid to stabilizer 50 apply to Left reaction force, so that limiting balance wheel 50 is to there is movement.It is possible thereby to no setting is required first thrust bearing and this In the case where two thrust bearings, limitation axis 20 moves axially along, i.e., replaces two thrust bearings using stabilizer 50.

Preferably, stabilizer 50 can be integrally formed with axis 20.It is possible thereby to reduce the manufacture difficulty that liquid changes pressure device 1 And manufacturing cost.

As shown in figure 3, can be equipped with through-hole 33 on the bottom wall 321 of holding tank 32, through-hole 33 can be with lubricant channel 140 Connection.It is possible thereby to enter lubricating fluid more easily in holding tank 32, so as to so that liquid changes the structure of pressure device 1 More rationally.

Preferably, the inner end of through-hole 33 and stabilizer 50 can be in the diametrically opposite of axis 20.It is possible thereby to make lubricating fluid More uniformly enter the part for being located at 50 left and right sides of stabilizer of holding tank 32.Wherein, the inner end of through-hole 33 is through-hole The end of 33 adjacent shaft 20, inward-outward direction is as shown in the arrow C in Fig. 3.

As shown in Figures 2 and 3, holding tank 32 can be equipped on the internal perisporium 31 of bearing 30, on the bottom wall 321 of holding tank 32 It can be equipped with through-hole 33, through-hole 33 can be connected to lubricant channel 140.Wherein, the bottom wall 321 of holding tank 32 refers to holding tank 32 with its opposite wall that is open, the side wall 322 of holding tank 32 refers to other walls in addition to bottom wall 321 of holding tank 32.

Due to the distance between axis 20 and bearing 30 (gap) very little, i.e. the volume very little of lubricating fluid runner 40, therefore moisten Synovia runner 40 is equivalent to the hole (orifice) of orifice plate, and has very big pressure drop.Thus 71 He of the first impeller of setting of axis 20 Pressure at the position of second impeller 72 is very low, is that liquid changes pressure device 1 at the position of the first impeller of setting 71 of axis 20 Pumping section 110 impeller eye (impeller eye), be that liquid changes pressure device 1 at the position of the second impeller of setting 72 of axis 20 The impeller eye (impeller eye) in turbine portion 120.

Therefore, it regardless of the final pressure in pumping section 110 and turbine portion 120 is how many, passes sequentially through lubricant channel 140 and leads to The lubricating fluid that hole 33 enters in holding tank 32 can flow to first chamber 111 and second chamber by lubricating fluid runner 40 respectively 121.That is, a part of of the lubricating fluid entered in holding tank 32 can flow to first chamber by lubricating fluid runner 40 111, the rest part of the lubricating fluid entered in holding tank 32 can flow to second chamber 121 by lubricating fluid runner 40.

It will go into the extraction of the lubricating fluid in holding tank 32 therefore without by lubricating liquid pump, i.e., without recycling lubricating fluid Flowing, so as to save lubrication liquid pump, heat exchanger and relevant pipeline, it can save lubricating fluid station, and simplify process.

As shown in Figures 2 and 3, in a specific example of the invention, lubricant channel 140 can be along the radial direction of axis 20 Extend, through-hole 33 can radially extending along axis 20, lubricant channel 140 and through-hole 33 can be in the diametrically opposite of axis 20. It is possible thereby to enter lubricating fluid more easily in holding tank 32, so as to so that liquid changes the structure of pressure device 1 more Rationally.

In an example of the invention, liquid changes pressure device 1 and may further include the first sealing ring (not to be shown in figure Out) and the second sealing ring (not shown), each of first sealing ring and second sealing ring can be located at bearing Between 30 periphery wall 34 and the peripheral wall 131 of axis accommodating chamber 130, the axial direction of first sealing ring and second sealing ring in axis 20 On can be located at through-hole 33 two sides.For example, first sealing ring can be located at the left side of through-hole 33, which can be with Positioned at the right side of through-hole 33.

That is, first sealing ring and second sealing ring can be set on axis 20, first sealing ring and Second sealing ring can be contacted with the peripheral wall 131 of axis accommodating chamber 130.The lubrication inputted from there through lubricant channel 140 Liquid can be entered all in holding tank 32 by through-hole 33, and then be entered in lubricating fluid runner 40.

Wherein, a part of lubricating fluid flows to the left, so that the part in the left side positioned at stabilizer 50 to axis 20 carries out Lubrication, a part of subsequent lubricating fluid enter in first chamber 111.The rest part of lubricating fluid flows to the right, so as to right The part on the right side positioned at stabilizer 50 of axis 20 is lubricated, and a part of subsequent lubricating fluid enters second chamber 121 It is interior.

As shown in Figures 2 and 3, in another example of the invention, the periphery wall 34 of bearing 30 can be with axis accommodating chamber 130 peripheral wall 131 contacts, and the inner end 141 of lubricant channel 140 can be contacted with the outer end 331 of through-hole 33.Wherein, lubricating fluid The inner end 141 in channel 140 refers to that the end of the adjacent shaft 20 of lubricant channel 140, the outer end 331 of through-hole 33 refer to through-hole 33 End far from axis 20.

The lubricating fluid inputted from there through lubricant channel 140 can enter holding tank 32 by through-hole 33 with almost all It is interior, and then enter in lubricating fluid runner 40.Wherein, a part of lubricating fluid flows to the left, to be located at balance to axis 20 The part in the left side of wheel 50 is lubricated, and a part of subsequent lubricating fluid enters in first chamber 111.Remaining of lubricating fluid Part is flowed to the right, so that the part on the right side positioned at stabilizer 50 to axis 20 is lubricated, this of subsequent lubricating fluid Divide and enters in second chamber 121.

Shell 10 can also have temperature detection channel (not shown), which can be with axis accommodating chamber 130 connections.As shown in Fig. 2, liquid, which changes pressure device 1, may further include temperature detector 60, temperature detector 60 can be set In the temperature detection channel, temperature detector 60 can contact to detect the temperature of bearing 30 with bearing 30.Pass through setting Temperature detector 60 can detect the temperature of bearing 30 in real time, so as to improve the safety that liquid changes pressure device 1.

Preferably, groove can be equipped on bearing 30, the inner end of temperature detector 60 can be located in the groove, thus may be used More accurately to detect the temperature of bearing 30.Wherein, the temperature detecting part of temperature detector 60 can be located at temperature detector On 60 inner end or the temperature detecting part of temperature detector 60 may be constructed the inner end of temperature detector 60.

The present invention also provides chemical reaction systems.Chemical reaction system according to an embodiment of the present invention includes reactor (not shown) and liquid according to the above embodiment of the present invention change pressure device 1.The reactor has inlet port and outlet port, The first outlet 113 that liquid changes pressure device 1 is connected to the feed inlet of the reactor, liquid change the second import 122 of pressure device 1 with The discharge port of the reactor is connected to.

Chemical reaction system according to an embodiment of the present invention changes pressure device 1 by the way that liquid is arranged, thus small with filtration yield, The advantages that operating cost is low, axis is not easy to wear, long service life.

As shown in Figure 4-Figure 6, in another group of embodiment of the invention, turbine portion 120 can further have assist into Mouth 123, secondary inlet 123 can be connected to second chamber 121.Wherein, the opening direction and secondary inlet of the second import 122 The angle of 123 opening direction can be greater than 90 degree and be less than or equal to 180 degree.

Specifically, by setting secondary inlet 123 and making the second import 122 compared with being not provided with secondary inlet 123 Opening direction and secondary inlet 123 opening direction angle be less than or equal to 90 degree, can make to change pressure device 1 by liquid Amount of liquid increases 10%-15%.Compared with being not provided with secondary inlet 123, by setting secondary inlet 123 and make the second import The angle of 122 opening direction and the opening direction of secondary inlet 123 is greater than 90 degree and is less than or equal to 180 degree, can make to pass through The amount of liquid that liquid changes pressure device 1 (turbine portion 120) increases 25%-50%.

As shown in figure 8, the secondary inlet 123 that liquid changes pressure device 1 can export 203 with the absorbing liquid on absorption tower 2 and be connected to Or it can be connected to the liquid outlet of 3 ' of high pressure knockout drum.Thus when the operating condition of 3 ' of absorption tower 2 or high pressure knockout drum generates wave It moves, the flow of the liquid of the absorbing liquid (i.e. the absorbing liquid of the discharge of absorption tower 2) or 3 ' of high pressure knockout drum of leaving absorption tower 2 is caused to increase When big, a part of absorbing liquid exhausts to (this not only needs that bypass is additionally arranged, but also also results in the suction of this part without using bypass The energy for receiving liquid is wasted).

By setting secondary inlet 123 and make the opening direction of the second import 122 and the opening direction of secondary inlet 123 Angle be greater than 90 degree and less than or equal to 180 degree, to can not only increase the operating range of 3 ' of absorption tower 2 or high pressure knockout drum And operating flexibility, and the adverse effect that the fluctuation of operating conditions that can eliminate 3 ' of absorption tower 2 or high pressure knockout drum generates.

As shown in figure 5, turbine portion 120 can further have first runner 124 and second flow channel 125.First runner 124 First end can be connected to the second import 122, the second end of first runner 124 can be connected to second chamber 121.Second The first end in road 125 can be connected to secondary inlet 123, and the second end of second flow channel 125 can be connected to second chamber 121. Wherein, the extending direction of first runner 124 can be identical with the opening direction of the second import 122, the extension side of second flow channel 125 To can be identical with the opening direction of secondary inlet 123, the extending direction of first runner 124 and the extension side of second flow channel 125 To angle can be greater than 90 degree and less than or equal to 180 degree.It is possible thereby to which the structure for making liquid change pressure device 1 is more reasonable.

Preferably, the extending direction of first runner 124 and the angle of the extending direction of second flow channel 125 can be more than or equal to 120 degree and be less than or equal to 180 degree.It is possible thereby to further decrease the liquid that enters from the second import 122 with from secondary inlet 123 Shock, interference and the overload that the liquid of entrance generates, to make more liquid change pressure device 1 by liquid, to not only may be used The operating range and operating flexibility of pressure device 1 are changed to further increase liquid, and can be further improved liquid and change pressure device 1 Energy regenerating amount, it can so that liquid is changed pressure device 1 and recycle more energy.Moreover, by further decrease from second into The shock and interference that mouthfuls 122 liquid entered are generated with the liquid entered from secondary inlet 123, so as to avoid from assist into A part of the liquid entered from the second import 122 is ejected the second import 122 by the liquid that mouth 123 enters.

It is further preferred that the extending direction of first runner 124 and the angle of the extending direction of second flow channel 125 can be greater than Equal to 150 degree and it is less than or equal to 180 degree.It is possible thereby to further avoid from the second import 122 enter liquid with from assist into The liquid that mouth 123 enters, which generate, to be hit, interfere and overloads, to make more liquid change pressure device 1 by liquid, thus not only Liquid can be further increased and change the operating range and operating flexibility of pressure device 1, and can be further improved liquid and change press fitting Set 1 energy regenerating amount, it can so that liquid is changed pressure device 1 and recycle more energy.

It is further preferred that the extending direction of first runner 124 and the angle of the extending direction of second flow channel 125 can wait In 180 degree.In other words, the extending direction of first runner 124 is parallel to the extending direction of second flow channel 125, i.e. first runner 124 It is parallel to second flow channel 125.It is possible thereby to further avoid from the second import 122 enter liquid with from secondary inlet 123 into The liquid that enters generate hit, interference and overload, to make more liquid change pressure device 1 by liquid, thus not only can be into One step increases liquid and changes the operating range and operating flexibility of pressure device 1, and can be further improved the energy that liquid changes pressure device 1 Measure yield, it can so that liquid is changed pressure device 1 and recycle more energy.

As shown in Fig. 2, turbine portion 120 can further have a third flow channel 126, the first end of third flow channel 126 can be with It is connected to the second outlet 127 in turbine portion 120, the second end of third flow channel 126 can be connected to second chamber 121.Wherein, The opening direction of the second outlet 127 of the extending direction and turbine portion 120 of three runners 126 can be identical, and third flow channel 126 is prolonged The angle for stretching the extending direction of direction and first runner 124 can be equal to 90 degree, the extending direction and second of third flow channel 126 The angle of the extending direction in road 125 can be equal to 90 degree.It is possible thereby to which the structure for making liquid change pressure device 1 is more reasonable.

Wherein, the extending direction of first runner 124 refers to from the second end of first runner 124 to the of first runner 124 The direction of one end, the extending direction of second flow channel 125 refer to from the second end of second flow channel 125 to the first of second flow channel 125 The direction at end, the extending direction of third flow channel 126 refer to from the second end of third flow channel 126 to the first end of third flow channel 126 Direction.

Preferably, the center line of first runner 124 can be tangent with the first circumference, and the center line of second flow channel 125 can be with It is tangent with first circumference.It is possible thereby to promote liquid rotational flow in second chamber 121, so as to so that more liquid The turbine portion 120 of pressure device 1 is changed by liquid, so as to can not only further increase liquid change pressure device 1 operating range and Operating flexibility, and can be further improved the energy regenerating amount that liquid changes pressure device 1, it can so that liquid is changed pressure device 1 and returns Receive more energy.

The center of circle of first circumference can be located on the rotation axis of the second impeller 72, which can be located at second The outside of impeller 72.It is possible thereby to promote liquid rotational flow in second chamber 121, further so as to so that more liquid Body changes the turbine portion 120 of pressure device 1 by liquid, can not only to further increase the operating range that liquid changes pressure device 1 And operating flexibility, and can be further improved the energy regenerating amount that liquid changes pressure device 1, it can so that liquid is changed pressure device 1 Recycle more energy.

Preferably, the ratio between the radius of the radius of first circumference and the second impeller 72 can be (1.1-1.5): 1.Thus may be used Further to promote liquid rotational flow in second chamber 121, so as to so that more liquid change pressure device 1 by liquid Turbine portion 120, can not only to further increase the operating range and operating flexibility that liquid changes pressure device 1, but also can be with Further increase the energy regenerating amount that liquid changes pressure device 1, it can so that liquid is changed pressure device 1 and recycle more energy.

It is further preferred that the ratio between the radius of the radius of first circumference and the second impeller 72 can be (1.2-1.35): 1. Most preferably, the ratio between the radius of the radius of first circumference and the second impeller 72 can be 1.27:1.It is possible thereby to further promote Feed liquor body rotational flow in second chamber 121, so as to so that more liquid changes by liquid the turbine portion of pressure device 1 120, the operating range and operating flexibility of pressure device 1 are changed can not only to further increase liquid, but also can further mention High liquid changes the energy regenerating amount of pressure device 1, it can so that liquid is changed pressure device 1 and recycles more energy.

As shown in figure 8, liquid, which changes pressure device 1 (chemical reaction system 100), may further include regulating valve 401, adjust The import of valve 401 can be connected to the liquid outlet of the pressure vessel, and the outlet of regulating valve 401 can connect with secondary inlet 123 It is logical.

Thus liquid all can not be entered by the second import 122 when the flow for the liquid for leaving the pressure vessel increases to When body is changed in pressure device 1, regulating valve 401 can be opened, be changed so that a part of liquid enters liquid by secondary inlet 123 In pressure device 1.Thus when the liquid level of the pressure vessel rises, regulating valve 401 can be opened to allow more liquid logical It crosses liquid and changes pressure device 1, it is possible thereby to drop to the liquid level of the pressure vessel in zone of reasonableness (target control range), so as to The liquid level in the pressure vessel is prevented to be higher than zone of reasonableness.

Specifically, the import of regulating valve 401 can export the liquid of 203 or 3 ' of high pressure knockout drum with the absorbing liquid on absorption tower 2 The outlet of body outlet, regulating valve 401 can be connected to secondary inlet 123.Due to absorbing liquid outlet 203 or high pressure knockout drum The liquid outlet of 3 ' is connected to the second import 122, therefore the liquid outlet for exporting 203 or 3 ' of high pressure knockout drum with absorbing liquid is connected to The import of regulating valve 401 can also be connected to the second import 122.

When the liquid for 3 ' of absorbing liquid or high pressure knockout drum for leaving absorption tower 2 can all be entered by the second import 122 When changing in pressure device 1 to liquid, regulating valve 401 can be closed.When 3 ''s of absorbing liquid or high pressure knockout drum for leaving absorption tower 2 The flow of liquid increases to when all can not enter liquid by the second import 122 and changing in pressure device 1, can be by regulating valve 401 open, so that a part of absorbing liquid or the liquid enter liquid by secondary inlet 123 and change in pressure device 1.It is possible thereby to Keep the structure of chemical reaction system 100 more reasonable.

The liquid level for controlling absorption tower 2 or 3 ' of high pressure knockout drum is technologic requirement.As 3 ' of absorption tower 2 or high pressure knockout drum Operating condition generate fluctuation or chemical reaction system 100 other parts operating condition generate fluctuation and lead to absorption tower 2 or high pressure When liquid level in 3 ' of knockout drum rises, regulating valve 401 can be opened to allow more liquid to change pressure device 1 by liquid, It is possible thereby to drop to the liquid level in 3 ' of absorption tower 2 or high pressure knockout drum in zone of reasonableness (target control range).

Specifically, as shown in figure 8, chemical reaction system 100 may include regulation pipe 909, the first end of regulation pipe 909 can To be connected with secondary inlet 123, the second end of regulation pipe 909 can be connected with the first inlet tube 901, and regulating valve 401 can be set In regulation pipe 909.

As shown in figure 8, in some examples of the invention, chemical reaction system 100 can also include interior circulating valve 403, The first outlet 113 that the import of interior circulating valve 403 can change pressure device 1 with liquid is connected to, the outlet of interior circulating valve 403 and liquid Change the second import 122 connection of pressure device 1.

Thus liquid can be returned to by interior circulating valve 403 and change press fitting by leaving liquid and changing a part of of liquid of pressure device 1 It sets in 1, so as to reduce the flow for the liquid for leaving the pressure vessel, to increase the liquid level in the pressure vessel, by This can make the pressure vessel and chemical reaction system 100 have bigger operating range and bigger operating flexibility.

Specifically, when 3 ' of absorption tower 2 or high pressure knockout drum operating condition generate fluctuation or chemical reaction system 100 its When the operating condition of his part generates fluctuation and the liquid level in 3 ' of absorption tower 2 or high pressure knockout drum is caused to decline, interior circulation can be opened Valve 403.It is possible thereby to make to leave the liquid that liquid changes pressure device 1 from first outlet 113, liquid is returned to by the second import 122 It changes in pressure device 1, so as to reduce the liquid on absorption tower 2 or 3 ' of high pressure knockout drum discharge, to make absorption tower 2 or high pressure point Liquid level from 3 ' of tank is gone up to zone of reasonableness (target control range).

Thus compared with the chemical reaction system for being not provided with interior circulating valve 403, chemical reaction system 100 can be lowered into The flow of the absorbing liquid (regenerated liquid) on absorption tower 2 and leave absorption tower 23 ' of absorbing liquid or high pressure knockout drum liquid stream Amount, so as to have bigger operating range and bigger operating flexibility.

The pumping section 110 that liquid changes pressure device 1 can further have condensate drain mouth 114, it is possible thereby to change pressure device 1 in liquid When shut-down, the Liquid Residue that liquid changes in pressure device 1 is drained.

As shown in Figure 2 and Figure 6, pumping section 110 can further have the 4th runner 115, the 5th runner 116 and the 6th runner 117.The first end of 4th runner 115 can be connected to the first import 112, and the second end of the 4th runner 115 can be with the first chamber Room 111 is connected to.The first end of 5th runner 116 can be connected to first outlet 113, and the second end of the 5th runner 116 can be with First chamber 111 is connected to.The first end of 6th runner 117 can be connected to condensate drain mouth 114, and the second end of the 6th runner 117 can To be connected to first chamber 111.

Wherein, the extending direction of the 4th runner 115 can be identical with the opening direction of the first import 112, the 5th runner 116 Extending direction can be identical with the opening direction of first outlet 113, the extending direction of the 6th runner 117 and condensate drain mouth 114 Opening direction can be identical.

Preferably, the angle of the extending direction of the extending direction and the 5th runner 116 of the 4th runner 115 can be equal to 90 The angle of degree, the extending direction of the extending direction and the 6th runner 117 of the 4th runner 115 can be equal to 90 degree, the 5th runner 116 Extending direction and the angle of extending direction of the 6th runner 117 can be equal to 180 degree.It is possible thereby to which liquid is made to change pressure device 1 Structure it is more reasonable.

The extending direction of 4th runner 115 refers to the first end from the second end of the 4th runner 115 to the 4th runner 115 The extending direction in direction, the 5th runner 116 refers to the side of the first end from the second end of the 5th runner 116 to the 5th runner 116 To the extending direction of the 6th runner 117 refers to the direction of the first end from the second end of the 6th runner 117 to the 6th runner 117.

As shown in Figure 7 and Figure 8, chemical reaction system 100 may further include the first booster pump 601, the first booster pump 601 can have the 4th import and the 4th outlet, and the 4th import of the first booster pump 601 can export 302 with regenerated liquid and be connected to, 4th outlet of the first booster pump 601 can be connected to the first import 112.It is possible thereby to using the first booster pump 601 to leaving The regenerated liquid of regenerator 3 is pressurized, pressurized regenerated liquid by the first import 112 enter liquid change in pressure device 1 with Just it is pressurized again, so as to obtain higher pressure so as to leave liquid and change the regenerated liquid of pressure device 1, preferably to meet work Requirement in skill.

In an example of the invention, as shown in Figure 7 and Figure 8, chemical reaction system 100 may further include decompression Valve 402 and the second booster pump 602.The import of pressure reducing valve 402 can export 203 (or the liquid of 3 ' of high pressure knockout drum with absorbing liquid Outlet) connection, the outlet of pressure reducing valve 402 can be connected to liquid import 301 (or liquid-inlet of 4 ' of low pressure separation pot) to be generated.When When liquid changes pressure device 1 and is not available because of failure and other reasons, pressure reducing valve 402 can be opened, to make to leave the absorption on absorption tower 2 Liquid (or liquid of 3 ' of high pressure knockout drum) is entered in regenerator 3 (or 4 ' of low pressure separation pot) by pressure reducing valve 402.

The import of second booster pump 602 can be exported with regenerated liquid and 302 is connected to, and the outlet of the second booster pump 602 can be with Absorbing liquid import 202 is connected to.When liquid, which changes pressure device 1, not to be available because of failure and other reasons, the second booster pump 602 can be made to transport Row, so that the regenerated liquid for leaving regenerator 3 to be transported in absorption tower 2.It is possible thereby to keep chemical reaction system 100 more stable Ground operation.

As shown in Figure 7 and Figure 8, chemical reaction system 100 may further include flash tank 7 and heat exchanger 8.

Flash tank 7 can have the first liquid-inlet 701, the first liquid outlet 702 and gas vent 703, the first liquid The second outlet 127 that import 701 can change pressure device 1 with liquid is connected to.Heat exchanger 8 can have the first heat exchanging chamber and second and change Hot chamber, first heat exchanging chamber can have second liquid import 801 and second liquid outlet 802, which can have There are third liquid-inlet 803 and third liquid outlet 804.Wherein, second liquid import 801 can be with the first liquid outlet 702 Connection, second liquid outlet 802 can be connected to liquid import 301 to be generated, and third liquid-inlet 803 can be exported with regenerated liquid 302 connections, third liquid outlet 804 can be connected to absorbing liquid import 202.

In one particular embodiment of the present invention, as shown in Figure 7 and Figure 8, liquid changes the second import 122 of pressure device 1 It can be connected by the absorbing liquid outlet 203 on the first inlet tube 901 (the first pipeline) and absorption tower 2, liquid changes the of pressure device 1 Two outlets 127 can be connected by the second pipeline 902 with the first liquid-inlet 701 of flash tank 7.

First liquid outlet 702 of flash tank 7 can pass through the second liquid import 801 of third pipeline 903 and heat exchanger 8 It is connected, the second liquid outlet 802 of heat exchanger 8 can be connected by the 4th pipeline 904 with the liquid import 301 to be generated of regenerator 3, The regenerated liquid outlet 302 of regenerator 3 can be connected by the 5th pipeline 905 with the third liquid-inlet 803 of heat exchanger 8.Heat exchange The third liquid outlet 804 of device 8 can be connected by the 6th pipeline 906 with the 4th import of the first booster pump 601, the first pressurization 4th outlet of pump 601 can be connected by the 7th pipeline 907 with the first import 112 that liquid changes pressure device 1.Liquid changes press fitting Setting 1 first outlet 113 can be connected by the first outlet tube 908 (the 8th pipeline) with the absorbing liquid import 202 on absorption tower 2.

The absorbing liquid outlet 203 on absorption tower 2 can change the auxiliary of pressure device 1 with liquid by regulation pipe 909 (the 9th pipeline) Import 123 is helped to be connected, regulating valve 401 can be located in regulation pipe 909.Specifically, the first end of regulation pipe 909 can be with first Inlet tube 901 is connected, and the second end of regulation pipe 909 can be connected with secondary inlet 123.Liquid changes the first outlet of pressure device 1 113 can be connected by the tenth pipeline 910 with the second import 122 that liquid changes pressure device 1, and interior circulating valve 403 can be located at On ten pipelines 910.Specifically, the first end of the tenth pipeline 910 can be connected with the first outlet tube 908, and the of the tenth pipeline 910 Two ends can be connected with the first inlet tube 901.

The third import 501 of filter 5 can change pressure device 1 by the second inlet tube 911 (the 11st pipeline) and liquid First outlet 113 be connected, the third of filter 5 outlet 502 can pass through the 12nd pipeline 912 and 140 phase of lubricant channel Even.Specifically, the first end of the second inlet tube 911 can be connected with the first outlet tube 908, the second end of the second inlet tube 911 It can be connected with the third import 501 of filter 5.The first end of 12nd pipeline 912 can be exported with the third of filter 5 502 are connected, and the second end of the 12nd pipeline 912 can be connected with lubricant channel 140.

The first end of 13rd pipeline 913 can be connected with the first inlet tube 901, and the second end of the 13rd pipeline 913 can To be connected with the second pipeline 902, pressure reducing valve 402 can be located on the 13rd pipeline 913.The first end of 14th pipeline 914 can To be connected with the 6th pipeline 906, the second end of the 14th pipeline 914 can be connected with the first outlet tube 908, the second booster pump 602 can be located on the 14th pipeline 914.

In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims

1. a kind of liquid changes pressure device characterized by comprising

Shell, the shell include:

Pumping section, the first import and first outlet that the pumping section has first chamber and is connected to the first chamber；With

Turbine portion, the turbine portion have second chamber and be connected to the second chamber the second import, secondary inlet and Second outlet, the angle of the opening direction of the opening direction and secondary inlet of second import be greater than 90 degree and less than etc. In 180 degree, wherein the shell has axis accommodating chamber；

First impeller and the second impeller, first impeller are located in the first chamber, and second impeller is located at described In two chambers；

Axis, the axis are located in the axis accommodating chamber；And

Bearing, the bearing are located in the axis accommodating chamber, and the bearing is set on the axis.

2. liquid according to claim 1 changes pressure device, which is characterized in that the turbine portion further has first runner And second flow channel, the first end of the first runner and second inlet communication, the second end of the first runner with it is described Second chamber connection, the first end of the second flow channel are connected to the secondary inlet, the second end of the second flow channel and institute Second chamber connection is stated, wherein the extending direction of the first runner is identical as the opening direction of second import, described the The extending direction of two runners is identical as the opening direction of the secondary inlet, the extending direction of the first runner and described second The angle of the extending direction of runner is greater than 90 degree and is less than or equal to 180 degree.

3. liquid according to claim 2 changes pressure device, which is characterized in that the extending direction of the first runner with it is described The angle of the extending direction of second flow channel is more than or equal to 120 degree and is less than or equal to 180 degree, it is preferable that the first runner prolongs The angle for stretching the extending direction of direction and the second flow channel is more than or equal to 150 degree and is less than or equal to 180 degree, it is further preferred that The angle of the extending direction of the first runner and the extending direction of the second flow channel is equal to 180 degree.

4. liquid according to claim 1 changes pressure device, which is characterized in that it further comprise regulating valve, the regulating valve Import and second inlet communication, the outlet of the regulating valve is connected to the secondary inlet.

5. liquid according to claim 2 changes pressure device, which is characterized in that the center line of the first runner and the first circle Week is tangent, and the center line of the second flow channel and first circumference are tangent, wherein the center of circle of first circumference is positioned at described On the rotation axis of second impeller, first circumference is located at the outside of second impeller.

6. liquid according to claim 5 changes pressure device, which is characterized in that the radius of first circumference and described second The ratio between radius of impeller is (1.1-1.5): 1.

7. liquid according to claim 1 changes pressure device, which is characterized in that the shell is further logical with lubricating fluid Road, the lubricant channel are connected to the axis accommodating chamber, the axis accommodating chamber and the first chamber and the second chamber Each of connection, lubricating fluid runner is limited between the bearing and the axis.

8. liquid according to claim 7 changes pressure device, which is characterized in that the internal perisporium of the bearing, which is equipped with, to be accommodated Slot, the bottom wall of the holding tank are equipped with through-hole, and the through-hole is connected to the lubricant channel, the liquid change pressure device into One step includes stabilizer, and the stabilizer is arranged on the shaft, wherein a part of the stabilizer is located at the holding tank Interior, described a part of the stabilizer is spaced apart with the bottom wall of the holding tank and side wall.

9. liquid according to claim 3 changes pressure device, which is characterized in that the turbine portion further has third stream Road, the first end of the third flow channel are connected to the second outlet, the second end of the third flow channel and the second chamber Connection, the extending direction of the third flow channel is identical as the opening direction of the second outlet, the extension side of the third flow channel To the angle of the extending direction with the first runner equal to 90 degree, the extending direction of the third flow channel and the second flow channel Extending direction angle be equal to 90 degree.

10. liquid according to claim 1 changes pressure device, which is characterized in that

It further comprises filter that the liquid, which changes pressure device, and there is the filter third import and third to export, wherein with The connected pipeline of the third import and the pipeline being connected with the first outlet and the pipeline being connected with second import At least one of be connected, third outlet is connected to the lubricant channel；

Alternatively, the liquid changes pressure device further comprises:

There is third import and third to export for filter, the filter；With

First booster pump, first booster pump have the 4th import and the 4th outlet, and the 4th import goes out with the third Mouthful connection, the 4th outlet and first inlet communication, wherein the pipeline that is connected to the lubricant channel and with it is described The connected pipeline of first outlet is connected.