CN203964469U - Shell and tube exchanger and the handpiece Water Chilling Units with it - Google Patents
Shell and tube exchanger and the handpiece Water Chilling Units with it Download PDFInfo
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- CN203964469U CN203964469U CN201420207829.4U CN201420207829U CN203964469U CN 203964469 U CN203964469 U CN 203964469U CN 201420207829 U CN201420207829 U CN 201420207829U CN 203964469 U CN203964469 U CN 203964469U
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Abstract
The utility model discloses a kind of shell and tube exchanger and there is its handpiece Water Chilling Units, described shell and tube exchanger comprises: housing, in described housing, be limited with chamber, described housing is provided with the refrigerant gas of described chamber conducting and takes over and refrigerant liquid adapter; Intake chamber and backwater room, described intake chamber and backwater room are located at respectively the two ends of described housing, and described intake chamber is provided with water inlet pipe and outlet pipe; Heat exchanger tube, described heat exchanger tube is located in described housing, the two ends of described heat exchanger tube respectively with described intake chamber and backwater room's conducting; And flash tank, described flash tank is located in described chamber, and described flash tank is provided with feed tube and the blowdown pipe with described hull outside conducting.According to the shell and tube exchanger of the utility model embodiment, flash tank and shell and tube exchanger structure are compacter, and flash tank is connected also simplyr with the pipeline of shell and tube exchanger, have reduced pipeline crushing, have improved the efficiency of shell and tube exchanger.
Description
Technical field
The utility model relates to heat transfer technology field, more specifically, relates to a kind of shell and tube exchanger and has its handpiece Water Chilling Units.
Background technology
Refrigeration unit is generally used two stages of compression kind of refrigeration cycle and economizer is set in refrigeration system, and economizer generally has plate to change formula heat exchanger and two kinds of structures of flash tank (claiming again shwoot formula economizer, flash distillation bucket, Flash Type to economize merit device etc.).
Flash tank is the conventional a kind of energy saver of handpiece Water Chilling Units, be arranged between one-level throttling and two-step throttle device, refrigerant liquid enters evaporation endothermic in flash tank after a nuclear one-stage throttling device throttling, refrigerant gas after evaporation is derived and is carried out second-compressed through blowdown pipe, all the other refrigerant liquid temperature reduce and are derived by drain pipe, enter evaporator evaporation refrigeration after the throttling of two-step throttle device.
And the flash tank pipeline crushing that in current industry, handpiece Water Chilling Units is used is large, unit efficiency is low, also makes unit volume huge simultaneously, and cost is higher.
Utility model content
The utility model is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, an object of the present utility model is to propose a kind ofly have that pipeline is simple, pipeline crushing is little and the shell and tube exchanger of compact conformation.
Another object of the present utility model is to propose a kind of handpiece Water Chilling Units with above-mentioned shell and tube exchanger.
According to the shell and tube exchanger of the utility model first aspect embodiment, comprising: housing, in described housing, be limited with chamber, described housing is provided with the refrigerant gas of described chamber conducting and takes over and refrigerant liquid adapter; Intake chamber and backwater room, described intake chamber and backwater room are located at respectively the two ends of described housing, and described intake chamber is provided with water inlet pipe and outlet pipe; Heat exchanger tube, described heat exchanger tube is located in described housing, the two ends of described heat exchanger tube respectively with described intake chamber and backwater room's conducting; And flash tank, described flash tank is located in described chamber, and described flash tank is provided with feed tube and the blowdown pipe with described hull outside conducting.
According to the shell and tube exchanger of the utility model embodiment, by flash tank being built in the chamber of shell and tube exchanger, substitute the structure at the external flash tank of shell and tube exchanger, flash tank and shell and tube exchanger structure are compacter, and flash tank is connected also simpler with the pipeline of shell and tube exchanger, reduce pipeline crushing, improved the efficiency of handpiece Water Chilling Units.
In addition, according to the shell and tube exchanger of the utility model embodiment, can also there is following additional technical characterictic:
According to an embodiment of the present utility model, described housing comprises: heat exchanger cylindrical shell, and described heat exchanger cylinder-shaped becomes the column structure of both ends open; With two tube sheets, the two ends that two described tube sheets are located at respectively described heat exchanger cylindrical shell are to seal described heat exchanger cylindrical shell, the two ends of described heat exchanger tube are respectively through two described tube sheets and described intake chamber and backwater room's conducting, and described intake chamber is connected with two described tube sheets respectively with backwater room.
According to an embodiment of the present utility model, in described flash tank, be limited with chamber between evaporation, in described flash tank, be provided with the screen pack for filter liquide, chamber between described evaporation is separated into gas channel and fluid passage by described screen pack, described blowdown pipe and described gas channel conducting, described feed tube and described fluid passage conducting.
According to an embodiment of the present utility model, described flash tank comprises: flash tank cylindrical shell, and described flash tank cylinder-shaped becomes the column structure of both ends open; And drive end bearing bracket and rear end cap, described drive end bearing bracket and rear end cap are located at respectively the front-end and back-end of described flash tank cylindrical shell to seal described flash tank cylindrical shell, and described gas channel is located at the top of described flash tank.
According to an embodiment of the present utility model, described flash tank also comprises: dividing plate, described dividing plate along extending axially of described flash tank be located between described evaporation indoorly, described screen pack is located on described dividing plate with by spaced apart to described gas channel and fluid passage.
According to an embodiment of the present utility model, described dividing plate comprises: base plate, and described base plate is formed as level board, and the axial length of described base plate is less than the axial length of described flash tank cylindrical shell; And end plate, described end plate is located at the rear end of described base plate, the inwall laminating of the upper surface of described end plate and described flash tank cylindrical shell, and described screen pack is located at the front end of described end plate and the inwall laminating with described flash tank cylindrical shell.
According to an embodiment of the present utility model, described blowdown pipe is located on the position of adjacent back end in described gas channel, and described feed tube is located on the position of adjacent back end in described fluid passage.
According to an embodiment of the present utility model, described flash tank is also provided with drain pipe, and described drain pipe is located on the position of adjacent front end in described fluid passage and is positioned at the bottom of described flash tank.
According to an embodiment of the present utility model, in described flash tank, be also provided with the axial overflow plate perpendicular to described flash tank, described overflow plate is located between described feed tube and drain pipe.
According to an embodiment of the present utility model, the level height on the top of described overflow plate is higher than the level height of described feed tube.
According to an embodiment of the present utility model, the tube wall that described feed tube stretches in described fluid passage is provided with multiple throttle orifices arranged spaced apart.
According to an embodiment of the present utility model, described throttle orifice comprises the many rows along the circumferential extension of described feed tube, and the described throttle orifice of every row comprises axially extended multiple along described feed tube.
According to an embodiment of the present utility model, described throttle orifice is towards diapire and the rear end cap setting of described flash tank.
According to an embodiment of the present utility model, described feed tube is provided with locating notch away from one end of described flash tank.
According to the handpiece Water Chilling Units of the utility model second aspect embodiment, comprise the shell-and-tube heat exchanger described in above-described embodiment.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is according to the structural representation of the shell and tube exchanger of the utility model embodiment;
Fig. 2 is the cross-sectional figure according to the shell and tube exchanger of the utility model embodiment;
Fig. 3 is according to the structural representation of the flash tank of the shell and tube exchanger of the utility model embodiment;
Fig. 4 is the cross-sectional figure according to the flash tank of the shell and tube exchanger of the utility model embodiment;
Fig. 5 is according to the structural representation of the feed tube of the flash tank of the shell and tube exchanger of the utility model embodiment;
Fig. 6 is the cross-sectional figure according to the feed tube of the flash tank of the shell and tube exchanger of the utility model embodiment;
Fig. 7 is according to the front view of the dividing plate of the flash tank of the shell and tube exchanger of the utility model embodiment;
Fig. 8 is according to the side view of the dividing plate of the flash tank of the shell and tube exchanger of the utility model embodiment.
Reference numeral:
Shell and tube exchanger 100;
Housing 110; Heat exchanger cylindrical shell 111; Tube sheet 112; Chamber 120; Refrigerant gas takes over 130; Refrigerant liquid takes over 140; Intake chamber 150; Water inlet pipe 151; Outlet pipe 152; Backwater room 160; Heat exchanger tube 170; Fastening bolt 180; Gripper shoe 190;
Flash tank 200;
Feed tube 210; Throttle orifice 211; Locating notch 212; Hush panel 213; Blowdown pipe 220; Chamber 230 between evaporation; Gas channel 231; Fluid passage 232; Screen pack 240; Flash tank cylindrical shell 250; Drive end bearing bracket 251; Rear end cap 252; Dividing plate 260; Base plate 261; End plate 262; Drain pipe 270; Overflow plate 280.
Detailed description of the invention
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
First specifically describe by reference to the accompanying drawings the shell and tube exchanger 100 according to the utility model embodiment below.
As shown in Figures 1 to 8, comprise according to the shell and tube exchanger 100 of the utility model embodiment: housing 110, intake chamber 150, backwater room 160, heat exchanger tube 170 and flash tank 200.Wherein, be limited with chamber 120 in housing 110, housing 110 is provided with refrigerant gas adapter 130 and the refrigerant liquid of chamber 120 conductings and takes over 140.Intake chamber 150 and backwater room 160 are located at respectively the two ends of housing 110, and intake chamber 150 is provided with water inlet pipe 151 and outlet pipe 152.Heat exchanger tube 170 is located in housing 110, the two ends of heat exchanger tube 170 respectively with intake chamber 150 and backwater room's 160 conductings.Flash tank 200 is located in chamber 120, and flash tank 200 is provided with feed tube 210 and the blowdown pipe 220 with housing 110 outside conductings.
Thus, according to the shell and tube exchanger 100 of the utility model embodiment, by flash tank 200 being built in the chamber 120 of shell and tube exchanger 100, substitute the structure at the external flash tank of shell and tube exchanger, flash tank 200 is compacter with shell and tube exchanger 100 structures, and flash tank 200 is connected also simplyr with the pipeline of shell and tube exchanger 100, reduce pipeline crushing, improve the efficiency of shell and tube exchanger 100.
In correlation technique, flash tank is arranged on the outside of shell and tube exchanger, flash tank is an external individual components, separate with other each parts of refrigeration system, when being connected with refrigeration system pipeline, external flash tank can cause water chilling unit system pipeline complexity, pipeline crushing increases, and unit efficiency is reduced, and also makes unit volume huge simultaneously.
And according to the shell and tube exchanger 100 of the utility model embodiment, flash tank 200 is located in the chamber 120 of shell and tube exchanger 100, flash tank 200 is compacter with the structure of shell and tube exchanger 100, flash tank 200 is simpler with the pipeline that shell and tube exchanger 100 is connected, shorten the pipeline connecting, thereby reduce pipeline crushing, improved the efficiency of shell and tube exchanger 100.
The concrete structure of housing 110 does not limit, and alternatively, according to an embodiment of the present utility model, housing 110 comprises heat exchanger cylindrical shell 111 and two tube sheets 112.Wherein, heat exchanger cylindrical shell 111 is formed as the column structure of both ends open.Two tube sheets 112 are located at respectively the two ends of heat exchanger cylindrical shell 111 with sealing heat exchanger cylindrical shell 111, the two ends of heat exchanger tube 170 are respectively through two tube sheets 112 and intake chamber 150 and backwater room's 160 conductings, and intake chamber 150 is connected with two tube sheets 112 respectively with backwater room 160.
Particularly, as shown in Figure 1, shell and tube exchanger 100 horizontal positioned, that is to say that shell and tube exchanger 100 is roughly horizontal mode of putting.Heat exchanger cylindrical shell 111 is formed as the unlimited cylindrical shape in rear and front end, is respectively provided with intake chamber 150 and backwater room 160 in the both sides, front and back of heat exchanger cylindrical shell 111.Between intake chamber 150 and heat exchanger cylindrical shell 111, be provided with a tube sheet 112, correspondingly, between backwater room 160 and heat exchanger cylindrical shell 111, be provided with another tube sheet 112.Intake chamber 150, backwater room 160 are all fastenedly connected by fastening bolt 180 and two tube sheets 112.
Chamber 120 inside are provided with the heat exchanger tube 170 of horizontal positioned, and the rear and front end of heat exchanger tube 170 and tube sheet 112 expanded joints are fixed.The tube bank that heat exchanger tube 170 forms is supported by gripper shoe 190, and the inner front side of heat exchanger cylindrical shell 111 is provided with flash tank 200.Heat exchanger cylindrical shell 111 tops are provided with refrigerant gas and take over 130, and bottom arranges refrigerant liquid and takes over 140.Be provided with water inlet pipe 151 and outlet pipe 152 in intake chamber 150 front sides.
The bottom conducting of feed tube 210 and flash tank 200, blowdown pipe 220 is arranged on the top of flash tank 200.Refrigerant liquid enters in flash tank 200 and carries out evaporation endothermic through feed tube 210, and the refrigerant gas after evaporation exports to the outside of flash tank 200 through blowdown pipe 220.Due in the evaporation process of refrigerant liquid, vaporific drop can enter into blowdown pipe 220 along with refrigerant gas, can reduce effect of flash tank 200.
For head it off, alternatively, according to an embodiment of the present utility model, in flash tank 200, be limited with chamber 230 between evaporation, in flash tank 200, be provided with the screen pack 240 for filter liquide, chamber between evaporation 230 is separated into gas channel 231 and fluid passage 232 by screen pack 240, blowdown pipe 220 and gas channel 231 conductings, feed tube 210 and fluid passage 232 conductings.Thus, filter the fog-like liquid containing in refrigerant gas by screen pack 240, can reduce the content of the vaporific drop of the refrigerant gas that enters blowdown pipe 220, improve the efficiency of flash tank 200.
According to an embodiment of the present utility model, flash tank 200 comprises flash tank cylindrical shell 250, drive end bearing bracket 251 and rear end cap 252.Wherein, flash tank cylindrical shell 250 is formed as the column structure of both ends open, and drive end bearing bracket 251 and rear end cap 252 are located at respectively the front-end and back-end of flash tank cylindrical shell 250 with sealing flash tank cylindrical shell 250, and gas channel 231 is located at the top of flash tank 200.
Particularly, as shown in Figure 3, flash tank cylindrical shell 250 is roughly formed as the unlimited cylindrical shape in rear and front end, and drive end bearing bracket 251 and rear end cap 252 and flash tank cylindrical shell 250 are for being tightly connected.Gas channel 231 is located at the top of flash tank 200, and correspondingly, fluid passage 232 is located at the bottom of flash tank 200.Thus, the refrigerant gas after the refrigerant liquid evacuator body in flash tank 200 flows to gas channel 231 from fluid passage 232, and then enters blowdown pipe 220, and namely refrigerant gas flows to top until blowdown pipe 220 from the bottom of flash tank 200.
In a detailed description of the invention of the present utility model, flash tank also 200 comprises dividing plate 260, dividing plate 260 along extending axially of flash tank 200 be located between evaporation in chamber 230, screen pack 240 is located on dividing plate 260 with by spaced apart to gas channel 231 and fluid passage 232.Further, dividing plate 260 comprises base plate 261 and end plate 262.Wherein, base plate 261 is formed as level board, and the axial length of base plate 261 is less than the axial length of flash tank cylindrical shell 250.End plate 262 is located at the rear end of base plate 261, the inwall laminating of the upper surface of end plate 262 and flash tank cylindrical shell 250, and screen pack 240 is located at the front end of end plate 262 and the inwall laminating with flash tank cylindrical shell 250.
Particularly, the inwall on the top of flash tank 200 is connected with and is formed with L shaped dividing plate 260, and L shaped dividing plate 260 is connected with the inwall of flash tank cylindrical shell 250.As shown in Figure 7 and Figure 8, base plate 261 is connected to form L shaped dividing plate 260 with end plate 262, base plate 261 level connection joints on the inwall of flash tank cylindrical shell 250, end plate 262 adjacent front end lids 251, the rear end of dividing plate 260 is the entrance of gas channel 231.Screen pack 240 is located to the rear end of dividing plate 260, makes its adjacent back end lid 252, thereby screen pack 240 seals the entrance of the gas channel 231 of dividing plate 260 rear ends.Can be by spaced apart to gas channel 231 and fluid passage 232 after screen pack 240 is connected with dividing plate 260, in other words, the space that dividing plate 260 and screen pack 240 limit is gas channel 231.Thus, after dividing plate 260 is connected with screen pack 240, refrigerant gas can only enter gas channel 231 by screen pack 240, thereby can make the vaporific droplet content in refrigerant gas lower.
Be understandable that, as shown in Figure 8, tighter for dividing plate 260 is coordinated with flash tank cylindrical shell 250 inwalls, end plate 262 is formed as arc or semicircular plate body.Dividing plate 260 does not limit with the connected mode of flash tank 200, as long as ensure being connected closely of dividing plate 260 and flash tank cylindrical shell 250 inwalls, such as the connected mode of dividing plate 260 and flash tank 200 can be the connected modes such as bonding.Optionally, dividing plate 260 is that full weld is connected with the connected mode of flash tank cylindrical shell 250, can make dividing plate 260 coordinate rear air-tightness stronger with flash tank cylindrical shell 250 internal faces.
Base plate 261 does not limit with the preparation method of end plate 262, and for example, base plate 261 and end plate 262 can be connected to form dividing plate 260 by welding, riveted joint, screw, or can be bent to form as L shaped dividing plate 260 plate body.Alternatively, or base plate 261 also can be formed in one with end plate 262, and integrated base plate 261 and end plate 262 can ensure the structural stability of dividing plate 260 thus, and dividing plate 260 convenient formation of this structure, have reduced preparation cost.
The concrete structure of dividing plate 260 is not particularly limited, as long as dividing plate 260 be connected with screen pack 240 or coordinate after can be by spaced apart to gas channel 231 and fluid passage 232, for example, dividing plate 260 can be formed as the plate body such as U-shaped, V-arrangement, makes gas channel 231 and fluid passage 232 spaced apart after screen pack 240 and dividing plate 260 assemblings.
According to an embodiment of the present utility model, blowdown pipe 220 is located on the position of gas channel 231 interior adjacent back end, and feed tube 210 is located on the position of fluid passage 232 interior adjacent back end.Further, flash tank 200 is also provided with drain pipe 270, and drain pipe 270 is located on the position of fluid passage 232 interior adjacent front end and is positioned at the bottom of flash tank 200.
Particularly, as shown in Figure 3 and Figure 4, blowdown pipe 220 is located at the top of flash tank cylindrical shell 250, and adjacent back end lid 252.A part for blowdown pipe 220 extend in flash tank cylindrical shell 250 and with gas channel 231 conductings.Feed tube 210 is located at flash tank 200 cylinder body bottoms with drain pipe 270, and feed tube 210 adjacent back end lids 252, a part for feed tube 210 extend in flash tank cylindrical shell 250 and with fluid passage 232 conductings.Drain pipe 270 is also arranged on the bottom of flash tank cylindrical shell 250, drain pipe 270 adjacent front end lids 251, and drain pipe 270 and fluid passage 232 conductings, and the height of the in the vertical direction of drain pipe 270 is lower than the height of the in the vertical direction of feed tube 210.
Refrigerant liquid enters into flash tank cylindrical shell 250 inside through feed tube 210, and refrigerant liquid is from the backside flow of flash tank cylindrical shell 250 to front side, and cold-producing medium evaporation endothermic.Refrigerant gas after evaporation, then flows to rear side from the front side of gas channel 231 and enters blowdown pipe 220 through being located at the screen pack 240 of flash tank cylindrical shell 250 front sides from fluid passage 232.Thus, the path that refrigerant gas is flowed through is longer, can reduce the content of vaporific drop in refrigerant gas, and can make refrigerant liquid fully evaporate.
It should be noted that, blowdown pipe 220, feed tube 210 and drain pipe 270 are not particularly limited with the connected mode of heat exchanger cylindrical shell 111, as long as meet the condition of stable connection.Alternatively, blowdown pipe 220, feed tube 210 and drain pipe 270 are welded and fixed with heat exchanger cylindrical shell 111, can make thus being connected firmly between blowdown pipe 220, feed tube 210 and drain pipe 270 and heat exchanger cylindrical shell 111, and air-tightness are high.
Enter into flash tank cylindrical shell 250 when interior at cold-producing medium from feed tube 210, part of refrigerant liquid evaporation becomes refrigerant gas and flows to gas channel 231, part of refrigerant liquid still stores in the fluid passage 232 of flash tank cylindrical shell 250, particularly, this part of refrigerant liquid stores the bottom at flash tank cylindrical shell 250.In order to make refrigerant liquid physical efficiency all from the interior outflow of flash tank cylindrical shell 250, drain pipe 270 is connected with the barrel of the bottom of flash tank cylindrical shell 250, a part of body of drain pipe 270 contiguous flash tank cylindrical shells 250 is formed as the pipe of axis bending, and drain pipe 270 is located under flash tank cylindrical shell 250 lowermost ends.
According to an embodiment of the present utility model, in flash tank 200, be also provided with the axial overflow plate 280 perpendicular to flash tank, overflow plate 280 is located between feed tube 210 and drain pipe 270.Further, the level height on the top of overflow plate 280 is higher than the level height of feed tube 210.
Particularly, as shown in Figure 3, the refrigerant liquid entering via feed tube 210 is from the backside flow of flash tank cylindrical shell 250 to overflow plate 280, and overflow plate 280 can stop refrigerant liquid.Along with refrigerant liquid constantly flows in flash tank cylindrical shell 250 from feed tube 210, a certain amount of refrigerant liquid is accumulated in the interior meeting of overflow plate 280.And the level height on overflow plate 280 tops is higher than the level height of feed tube 210, when the liquid level of refrigerant liquid is during higher than the level height of feed tube 210, enter into liquid in flash tank cylindrical shell 250 only in cold-producing medium liquid level current downflow, at this moment the liquid level of the refrigerant liquid of overflow plate 280 rear sides rises steadily.When simultaneously the liquid of overflow plate 280 rear sides covers overflow plate 280 and flows to the front side of overflow plate 280, flowing of refrigerant liquid also can be more steady.
Thus, in flash tank 200 inside, overflow plate 280 is set, can carry out to refrigerant liquid the effect of baffle and overflow, avoid refrigerant liquid acutely to spring up the liquid fluctuating that makes drain pipe 270 entrance tops, cause the refrigerant liquid instability of flow that flows to drain pipe 270, and overflow plate 280 can also separate with the gas after cold-producing medium evaporation refrigerant liquid, prevent from collaborating to the secondary throttling gear after drain pipe 270, improve the efficiency of shell and tube exchanger 100, reduce the charging amount of cold-producing medium.
In a detailed description of the invention of the present utility model, the tube wall that feed tube 210 stretches in fluid passage 232 is provided with multiple throttle orifices 211 arranged spaced apart.Particularly, throttle orifice 211 can carry out throttling to the cold-producing medium entering in flash tank 200.Thus, an integrated nuclear one-stage throttling device on flash tank 200 in shell and tube exchanger 100, namely the nuclear one-stage throttling device in refrigeration system is integrated in flash tank, can makes the structure of shell and tube exchanger 100 compacter, the pipeline of having simplified shell and tube exchanger 100 connects.
According to an embodiment of the present utility model, throttle orifice 211 comprises the many rows along the circumferential extension of feed tube 210, and every cribbing discharge orifice 211 comprises axially extended multiple along feed tube 210.Further, throttle orifice 211 arranges towards diapire and the rear end cap 252 of flash tank 200.
Particularly, as shown in Figures 3 to 6, throttle orifice 211 concentrates on the 1/4 circular arc place of feed tube 210 towards rear end cap 252 and the diapire of flash tank cylindrical shell 250, and throttle orifice 211 is the radial direction through hole on feed tube 210, and the arrow in Fig. 3 and Fig. 6 represents the flow direction of refrigerant liquid.Thus, the rear end cap that flows to flash tank cylindrical shell 250 252 of the refrigerant liquid entering via feed tube 210 and the bottom of flash tank cylindrical shell 250, prevent the refrigerant liquid of overflow plate 280 rear sides to cause fluctuation, and can avoid the refrigerant gas that enters into blowdown pipe 220 with the vaporific drop of a large amount of cold-producing mediums, namely prevent the interior benefit gas carrying liquid of flash tank 200.
It should be noted that, be provided with the end of hush panel 213 with sealing feed tube 210 in the end of feed tube 210, thereby refrigerant liquid is all entered in flash tank 200 from throttle orifice 211, improve the throttling action of throttle orifice 211.
Because the throttle orifice 211 of feed tube 210 need to be towards the rear end cap of flash tank 200 252 and diapire, in the time that feed tube 210 all extend into flash tank 200 inside, operating personnel cannot identification throttle orifice 211 concrete orientation. be head it off, according to an embodiment of the present utility model, feed tube 210 is provided with locating notch 212 away from one end of flash tank 200.Thus, operating personnel can install feed tube 210 by the mark action of locating notch 212, so that rear end cap 252 and the diapire of the interior aligning flash tank 200 of feed tube 210.
Letter below illustrates according to operation principle and the course of work of the shell and tube exchanger 100 of the utility model embodiment.
In shell and tube exchanger 100, cold-producing medium by refrigerant gas take over 130 and refrigerant liquid take over 140 turnover shell and tube exchanger 100 shell sides, carry out heat exchange with refrigerating medium or catalyst carrier (being generally water) in heat exchanger tube 170 tube sides.In flash tank 200, cold-producing medium enters the fluid passage 232 of flash tank cylindrical shell 250 bottoms after feed tube 210 throttlings with throttle orifice 211, after overflow plate 280 stops also overflow, in the fluid passage 232 of cold-producing medium after overflow plate 280, form steady liquid level, refrigerant gas after evaporation filters out through the screen pack 240 of gas channel 231 arrival ends the vaporific drop containing in refrigerant gas, flow to afterwards gas channel 231 tail ends and derive and carry out second-compressed by blowdown pipe 220, in flash tank 200, remaining refrigerant liquid temperature reduces and is derived and carried out second throttle by drain pipe 270.
According to the handpiece Water Chilling Units (not shown) of the utility model embodiment, comprise the shell and tube exchanger 100 of above-described embodiment.Because the shell and tube exchanger 100 according to the utility model embodiment has above-mentioned technique effect, therefore also there is corresponding technique effect according to the handpiece Water Chilling Units of the utility model embodiment, that is: the compact conformation of shell and tube exchanger 100, pipeline crushing is low, efficiency is high, and then optimized the structure of handpiece Water Chilling Units, improve the efficiency of handpiece Water Chilling Units.
Belong to those of ordinary skill in the art according to other structure of the shell and tube exchanger 100 of the utility model embodiment and handpiece Water Chilling Units and operation and easily understand and obtain, therefore no longer repeat.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of instructions such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, specific features, structure, material or the feature of description can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this description or example and different embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, amendment, replacement and modification.
Claims (15)
1. a shell and tube exchanger, is characterized in that, comprising:
Housing, is limited with chamber in described housing, and described housing is provided with the refrigerant gas of described chamber conducting and takes over and refrigerant liquid adapter;
Intake chamber and backwater room, described intake chamber and backwater room are located at respectively the two ends of described housing, and described intake chamber is provided with water inlet pipe and outlet pipe;
Heat exchanger tube, described heat exchanger tube is located in described housing, the two ends of described heat exchanger tube respectively with described intake chamber and backwater room's conducting; With
Flash tank, described flash tank is located in described chamber, and described flash tank is provided with feed tube and the blowdown pipe with described hull outside conducting.
2. shell and tube exchanger according to claim 1, is characterized in that, described housing comprises:
Heat exchanger cylindrical shell, described heat exchanger cylinder-shaped becomes the column structure of both ends open; With
Two tube sheets, the two ends that two described tube sheets are located at respectively described heat exchanger cylindrical shell are to seal described heat exchanger cylindrical shell, the two ends of described heat exchanger tube are respectively through two described tube sheets and described intake chamber and backwater room's conducting, and described intake chamber is connected with two described tube sheets respectively with backwater room.
3. shell and tube exchanger according to claim 1, it is characterized in that, in described flash tank, be limited with chamber between evaporation, in described flash tank, be provided with the screen pack for filter liquide, chamber between described evaporation is separated into gas channel and fluid passage by described screen pack, described blowdown pipe and described gas channel conducting, described feed tube and described fluid passage conducting.
4. shell and tube exchanger according to claim 3, is characterized in that, described flash tank comprises:
Flash tank cylindrical shell, described flash tank cylinder-shaped becomes the column structure of both ends open; And
Drive end bearing bracket and rear end cap, described drive end bearing bracket and rear end cap are located at respectively the front-end and back-end of described flash tank cylindrical shell to seal described flash tank cylindrical shell, and described gas channel is located at the top of described flash tank.
5. shell and tube exchanger according to claim 4, it is characterized in that, described flash tank also comprises: dividing plate, described dividing plate along extending axially of described flash tank be located between described evaporation indoorly, described screen pack is located on described dividing plate with by spaced apart to described gas channel and fluid passage.
6. shell and tube exchanger according to claim 5, is characterized in that, described dividing plate comprises:
Base plate, described base plate is formed as level board, and the axial length of described base plate is less than the axial length of described flash tank cylindrical shell; With
End plate, described end plate is located at the rear end of described base plate, the inwall laminating of the upper surface of described end plate and described flash tank cylindrical shell, described screen pack is located at the front end of described end plate and the inwall laminating with described flash tank cylindrical shell.
7. shell and tube exchanger according to claim 6, is characterized in that, described blowdown pipe is located on the position of adjacent back end in described gas channel, and described feed tube is located on the position of adjacent back end in described fluid passage.
8. shell and tube exchanger according to claim 7, is characterized in that, described flash tank is also provided with drain pipe, and described drain pipe is located on the position of adjacent front end in described fluid passage and is positioned at the bottom of described flash tank.
9. shell and tube exchanger according to claim 8, is characterized in that, is also provided with the axial overflow plate perpendicular to described flash tank in described flash tank, and described overflow plate is located between described feed tube and drain pipe.
10. shell and tube exchanger according to claim 9, is characterized in that, the level height on the top of described overflow plate is higher than the level height of described feed tube.
11. shell and tube exchangers according to claim 7, is characterized in that, the tube wall that described feed tube stretches in described fluid passage is provided with multiple throttle orifices arranged spaced apart.
12. shell and tube exchangers according to claim 11, is characterized in that, described throttle orifice comprises the many rows along the circumferential extension of described feed tube, and the described throttle orifice of every row comprises axially extended multiple along described feed tube.
13. shell and tube exchangers according to claim 12, is characterized in that, described throttle orifice is towards diapire and the rear end cap setting of described flash tank.
14. shell and tube exchangers according to claim 11, is characterized in that, described feed tube is provided with locating notch away from one end of described flash tank.
15. 1 kinds of handpiece Water Chilling Units, is characterized in that, comprise the shell and tube exchanger described in any one in claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207829.4U CN203964469U (en) | 2014-04-25 | 2014-04-25 | Shell and tube exchanger and the handpiece Water Chilling Units with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207829.4U CN203964469U (en) | 2014-04-25 | 2014-04-25 | Shell and tube exchanger and the handpiece Water Chilling Units with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203964469U true CN203964469U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207829.4U Expired - Fee Related CN203964469U (en) | 2014-04-25 | 2014-04-25 | Shell and tube exchanger and the handpiece Water Chilling Units with it |
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| Country | Link |
|---|---|
| CN (1) | CN203964469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004106A (en) * | 2014-04-25 | 2015-10-28 | 重庆美的通用制冷设备有限公司 | Shell and tube heat exchanger and cold water unit with same |
| CN113623879A (en) * | 2020-05-06 | 2021-11-09 | 开利公司 | Condenser subassembly with integrated flash tank |
-
2014
- 2014-04-25 CN CN201420207829.4U patent/CN203964469U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004106A (en) * | 2014-04-25 | 2015-10-28 | 重庆美的通用制冷设备有限公司 | Shell and tube heat exchanger and cold water unit with same |
| CN113623879A (en) * | 2020-05-06 | 2021-11-09 | 开利公司 | Condenser subassembly with integrated flash tank |
| EP3907445A1 (en) * | 2020-05-06 | 2021-11-10 | Carrier Corporation | Condenser subassembly with integrated flash tank |
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