CN102589340A - End cover of shell and tube heat exchanger capable of operating in a variable flow - Google Patents
End cover of shell and tube heat exchanger capable of operating in a variable flow Download PDFInfo
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- CN102589340A CN102589340A CN2012100669261A CN201210066926A CN102589340A CN 102589340 A CN102589340 A CN 102589340A CN 2012100669261 A CN2012100669261 A CN 2012100669261A CN 201210066926 A CN201210066926 A CN 201210066926A CN 102589340 A CN102589340 A CN 102589340A
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- shell
- fluid
- tube
- end cover
- end cap
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Abstract
The invention relates to a cooling and heating technology of an air condition, in particular to an end cover of a shell and tube heat exchanger capable of operating in a variable flow. The end cover comprises a first end cover and a second end cover which are respectively arranged at the two ends of the shell and tube heat exchanger and is characterized in that fluid short tubes are arranged on the first end cover and the second end cover and are communicated with tube bundles at the inner part of the shell and tube heat exchanger, and external adjusting valves are arranged on the fluid short tubes. The fluid short tubes can be served as fluid inlet connecting tubes or fluid outlet connecting tubes, and the external adjusting valves are used for controlling the flow of the liquid flowing through the fluid short tubes and a switch. The end cover is used for solving the problem of difference in the temperature difference and the flow of the fluid during the cooling and heating of the shell and tube heat exchanger, therefore, the flow and the operation state of the fluid in the shell and tube heat exchanger can be effectively adjusted and controlled.
Description
Technical field
The present invention relates to air conditioner refrigerating, heat technology, be specifically related to a kind of shell and tube exchanger end cap, be applicable to the various shell and tube exchangers that need the unsteady flow journey,, have tangible practical value especially for the pump type heat shell and tube exchanger.
Background technology
China's energy for building has surpassed 1/4 of national energy resource consumption total amount, and will progressively be increased to more than 1/3 along with the raising of living standards of the people.Air conditioner heating system is the energy consumption rich and influential family in the public building, and the energy consumption of air conditioner cold-heat origin system accounts for more than 60% of whole air conditioner heating system energy consumption.Therefore, the accurate adjusting of air conditioner cold-heat source system running state and control have very important significance to building energy conservation, reduction of discharging.
Shell and tube exchanger is screw cold water (heat pump) unit and the evaporimeter of centrifugal cold water (heat pump) unit and the principal mode of condenser.The shell and tube exchanger tube side of existing unit is constant, does not possess the function that changes flow process according to the water side temperature difference.
Summary of the invention
The technical problem that the present invention solved has provided a kind of variable process flow operation shell and tube exchanger end cap; The flow process and the running status of fluid in the shell and tube exchanger are effectively regulated and controlled to fluid temperature difference and flow different problems when being used to solve shell and tube exchanger cooling and heat supply.
For solving the problems of the technologies described above; Basic design of the present invention is: a kind of variable process flow operation shell and tube exchanger end cap; Comprise first end cap and second end cap that are installed in the shell and tube exchanger two ends respectively; It is characterized in that: on said first end cap and second end cap, all be provided with the fluid short tube, said fluid short tube is communicated with the inner tube bundle of said shell and tube exchanger, and external control valve is installed on the said fluid short tube.The fluid short tube can be the fluid inlet adapter or fluid issuing is taken over, and external control valve is controlled the flow and the switch of liquid in the fluid short tube of flowing through.
In the technique scheme; Fluids such as clear water, seawater, ethylene glycol solution flow in the tube bundle of shell and tube exchanger; Tube bundle is mobile all kinds of cold-producing mediums (ethylene glycol solution or the various aqueous solution) outward; The opening and closing of said external control valve can change the flow direction of tube fluid, thereby change the flow process of tube bundle inner fluid, realize the change of different operating condition lower inlets of fluid and outlet temperature difference.
Because technique scheme utilization; The present invention compared with prior art has advantage: can carry out the operation of alternating temperature difference through the fluid in the tube bundle; But multipaths operation when the tube bundle inner fluid needs the big temperature difference; The conversion of shell and tube exchanger operating condition and the control of running state parameter are convenient in the single process operation when the tube bundle inner fluid needs the little temperature difference to move.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further description.
Fig. 1 shell and tube exchanger end cap position view.
Fig. 2 gauche form two flow processs become a flow process first end cover structure sketch map.
Fig. 3 gauche form two flow processs become a flow process second end cover structure sketch map.
The second-rate journey of the last following formula of Fig. 4 becomes a flow process first end cover structure sketch map.
The second-rate journey of the last following formula of Fig. 5 becomes a flow process second end cover structure sketch map.
Fig. 6 two flow processs become a flow process end cap two flow process generalized sections.
Fig. 7 two flow processs become a flow process end cap one flow process generalized section.
Fig. 8 gauche form three flow processs become a flow process first end cover structure sketch map.
Fig. 9 gauche form three flow processs become a flow process second end cover structure sketch map.
Last following formula three flow processs of Figure 10 become a flow process first end cover structure sketch map.
Last following formula three flow processs of Figure 11 become a flow process second end cover structure sketch map.
Figure 12 three flow processs become a flow process end cap three flow process generalized sections.
Figure 13 three flow processs become a flow process end cap one flow process generalized section.
The specific embodiment
As shown in Figure 1, first end cap 1 and second end cap 2 are installed in the two ends of shell and tube exchanger 10, first end cap 1 of shell-and-tube heat exchanger and second end cap, 2 interchangeable positions in the practical application.
Fig. 2 and shown in Figure 3ly become a flow process end cap for gauche form two flow processs, two fluid short tubes about first end cap is horizontally disposed with are respectively the 3rd short tube 3 and the 4th short tube 4; At second end cap one fluid short tube being set, is the 5th short tube 5.Fig. 4 and shown in Figure 5ly become a flow process end cap for the second-rate journey of last following formula is at first end cap, 1 vertical two fluid short tubes up and down, the 3rd short tube 3 and the vertical up and down setting of the 4th short tube 4 of being provided with; The 5th short tube 5 is set on second end cap.As shown in Figure 6, during the operation of two flow processs, fluid flows into shell and tube exchanger from the 4th short tube 4 of first end cap 1, flows out shell and tube exchanger from the 3rd short tube 3, and fluid flow direction is for shown in the arrow in scheming.As shown in Figure 7, during the single process operation, fluid is from the 3rd short tube 3 and the 4th short tube 4 inflow pipe shell heat exchangers of first end cap 1, and from the 5th short tube 5 effuser shell heat exchangers of second end cap 2, fluid flow direction is for shown in the arrow in scheming.In the actual motion, the 3rd short tube 3 can be interchangeable with the 4th short tube 4.The flow direction of fluid is by the external control valve control that is installed on each fluid short tube, the installation site of external control valve can be outside shell and tube exchanger, on the fluid short tube Anywhere.The position of each fluid short tube is merely a kind of signal among Fig. 2, Fig. 3, Fig. 4 and Fig. 5, and the installation site of general the 3rd short tube 3 and the 4th short tube 4 is evenly distributed first end cap, and the 5th short tube 5 is installed in the center of second end cap.
Fig. 8 and shown in Figure 9ly become a flow process end cap for gauche form three flow processs, the 3rd short tube 3 and the 4th short tube 4 parallel, horizontal are arranged on first end cap; Two the 5th short tubes 5 and the 6th short tube 6 about second end cap 2 is horizontally disposed with.Like Figure 10 with shown in Figure 11ly become a flow process end cap,, be respectively the 3rd short tube 3 and the 4th short tube 4 at vertical two the fluid short tubes up and down that are provided with of first end cap for last following formula three flow processs; At vertical two the 5th short tubes 5 and the 6th short tube 6 of being provided with up and down of second end cap.Shown in figure 12, during three process flow operations, fluid flows into shell and tube exchanger from the 4th short tube 4 of first end cap 1, from the 5th short tube 5 outflow shell and tube exchangers of second end cap 2.Shown in figure 13, during the single process operation, fluid is from the 3rd short tube 3 and the 4th short 4 pipe inflow pipe shell heat exchangers of first end cap, from the 5th short tube 5 and the 6th short tube 6 effuser shell heat exchangers of second end cap.In the actual motion, the 3rd short tube 3 can exchange with the 4th short tube 4, and the 5th short tube 5 can exchange with the 6th short tube 6.Among Figure 12 and Figure 13, fluid flow direction is for shown in the arrow in scheming.Among Fig. 8, Fig. 9, Figure 10 and Figure 11; The installation site of each fluid short tube is merely a kind of signal, and is general, and the distribution of short tube is installed according to 1: 2 ratio of each end cap and distributed on each end cap; Certainly, also can confirm by actual conditions according to the distributing position of the tube bundle of shell and tube exchanger inside.
Below respectively two flow processs are become a flow process end cap two flow processs, two flow processs and become that a flow process end cap one flow process, three flow processs become a flow process end cap three flow processs, three flow processs become four kinds of schemes of a flow process end cap one flow process and done detailed introduction.For one of ordinary skill in the art, according to the thought of the embodiment of the invention, the part that on the specific embodiment and range of application, all can change is as analogizing to the scheme of four flow processs, five flow processs etc.In sum, this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (1)
1. variable process flow operation shell and tube exchanger end cap; Comprise first end cap (1) and second end cap (2) that are installed in the shell and tube exchanger two ends respectively; It is characterized in that: on said first end cap (1) and second end cap (2), all be provided with the fluid short tube; Said fluid short tube is communicated with the inner tube bundle of said shell and tube exchanger, and external control valve is installed on the said fluid short tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100669261A CN102589340A (en) | 2012-03-13 | 2012-03-13 | End cover of shell and tube heat exchanger capable of operating in a variable flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100669261A CN102589340A (en) | 2012-03-13 | 2012-03-13 | End cover of shell and tube heat exchanger capable of operating in a variable flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102589340A true CN102589340A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100669261A Pending CN102589340A (en) | 2012-03-13 | 2012-03-13 | End cover of shell and tube heat exchanger capable of operating in a variable flow |
Country Status (1)
| Country | Link |
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| CN (1) | CN102589340A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534568A (en) * | 2018-04-04 | 2018-09-14 | 珠海格力电器股份有限公司 | The control method of shell and tube exchanger, handpiece Water Chilling Units and handpiece Water Chilling Units |
| CN113811728A (en) * | 2019-02-20 | 2021-12-17 | 新加坡能源创新发展有限公司 | Improved chiller and method of use |
| CN114810276A (en) * | 2022-05-06 | 2022-07-29 | 马勒汽车技术（中国）有限公司 | Variable flow type heat exchanger and power assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795716Y (en) * | 2005-04-29 | 2006-07-12 | 何坚忍 | Variable flow heater |
| CN102235774A (en) * | 2010-05-07 | 2011-11-09 | 上海瀚显空调节能技术有限公司 | Efficient sewage source heat pump unit with three-sectional heat recovery condensing device |
| CN202547474U (en) * | 2012-03-13 | 2012-11-21 | 华东建筑设计研究院有限公司 | End cover of shell and tube type heat exchanger operating in variable flow |
-
2012
- 2012-03-13 CN CN2012100669261A patent/CN102589340A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795716Y (en) * | 2005-04-29 | 2006-07-12 | 何坚忍 | Variable flow heater |
| CN102235774A (en) * | 2010-05-07 | 2011-11-09 | 上海瀚显空调节能技术有限公司 | Efficient sewage source heat pump unit with three-sectional heat recovery condensing device |
| CN202547474U (en) * | 2012-03-13 | 2012-11-21 | 华东建筑设计研究院有限公司 | End cover of shell and tube type heat exchanger operating in variable flow |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534568A (en) * | 2018-04-04 | 2018-09-14 | 珠海格力电器股份有限公司 | The control method of shell and tube exchanger, handpiece Water Chilling Units and handpiece Water Chilling Units |
| CN108534568B (en) * | 2018-04-04 | 2023-12-01 | 珠海格力电器股份有限公司 | Shell-and-tube heat exchanger, water chilling unit and control method of water chilling unit |
| CN113811728A (en) * | 2019-02-20 | 2021-12-17 | 新加坡能源创新发展有限公司 | Improved chiller and method of use |
| CN114810276A (en) * | 2022-05-06 | 2022-07-29 | 马勒汽车技术（中国）有限公司 | Variable flow type heat exchanger and power assembly |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20120718 |