CN212508390U - Ventilation and heat exchange device in shield/TBM tunnel - Google Patents
Ventilation and heat exchange device in shield/TBM tunnel Download PDFInfo
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- CN212508390U CN212508390U CN202020994441.9U CN202020994441U CN212508390U CN 212508390 U CN212508390 U CN 212508390U CN 202020994441 U CN202020994441 U CN 202020994441U CN 212508390 U CN212508390 U CN 212508390U
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Abstract
The utility model belongs to the technical field of tunnel ventilation heat exchange treatment, in particular to a shield/TBM (tunnel boring machine) in-tunnel ventilation heat exchange device, which is used for ventilation in a construction tunnel and comprises an air cooling evaporator and a fan which are arranged in the tunnel, wherein air pipes of the air cooling evaporator and the fan are directly connected into an integral structure; the air cooling evaporator is connected with the condensation circulating pipeline through a refrigerant inlet and a refrigerant outlet, and is used for carrying out heat exchange treatment on air outside the tunnel and pressurizing by using a fan so as to send the air after the heat exchange treatment into a tunnel construction operation environment. The utility model reduces the trailer installation space and improves the heat exchange efficiency by increasing the heat exchange area of the evaporator; the evaporator refrigerant is directly subjected to heat exchange with air inlet outside the tunnel to complete cooling in the tunnel, so that the tunnel construction operation environment is greatly improved, a comfortable operation environment can be created for operators, heatstroke is prevented, the temperature of mechanical equipment in the environment can be effectively reduced, the equipment failure rate is reduced, and the construction operation efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the tunnel ventilation heat transfer is handled, in particular to ventilation heat transfer device in shield structure TBM tunnel.
Background
The front tunnel ventilation and refrigeration system generally comprises an air pipe extension device, an air evaporator, a screw compressor, a freezing water tank system, a secondary fan, a hard air pipe and a soft air pipe which are respectively arranged on the tops of all the linked tractors. The original shield ventilation refrigerating system needs to be provided with a secondary fan and an air cooler simultaneously, the price is high, two positions need to be reserved to be used for placing the secondary fan and the air cooler respectively, the occupied space is large, the assembly and maintenance are not changed, the original air cooler can not fully perform heat exchange, the heat exchange efficiency is low, chilled water and tunnel air are adopted for performing heat exchange, the chilled water temperature difference is small, the heat exchange efficiency is limited, equipment is easy to heat and break down when running under a high-temperature operation environment, and the operation efficiency of personnel is influenced.
Disclosure of Invention
Therefore, the utility model provides a ventilation heat transfer device in shield structure TBM tunnel, fan and evaporimeter adopt the secondary relay of directly linking the structure with the outer air inlet of tunnel hole to realize the heat exchange of refrigerant, air and handle, simple structure reduces trailer installation space to practice thrift the cost, ventilation heat exchange efficiency in the guarantee tunnel reaches the cooling ventilation purpose, ensures constructor physical and mental health and efficiency of construction.
According to the design scheme provided by the utility model, the ventilation heat exchange device in the shield/TBM tunnel is used for ventilation in a construction tunnel, and comprises an air-cooled evaporator and a fan which are arranged in the tunnel, wherein air pipes of the air-cooled evaporator and the fan are directly connected into an integral structure; the air cooling evaporator is connected with the condensation circulating pipeline through a refrigerant inlet and a refrigerant outlet, and is used for carrying out heat exchange treatment on air outside the tunnel and pressurizing by using a fan so as to send the air after the heat exchange treatment into a tunnel construction operation environment.
As the utility model discloses shield structure TBM tunnel internal ventilation heat transfer device, furtherly, the air cooling evaporimeter adopts the refrigerant medium to carry out the heat exchange to the air and handles.
As the utility model discloses shield structure TBM tunnel interior ventilation heat transfer device, furtherly, the air cooling evaporimeter adopts fin formula evaporimeter structure or bushing type evaporimeter structure.
As the utility model discloses shield structure TBM ventilation heat transfer device in the tunnel, further, fin formula evaporimeter structure adopts and allies oneself with the fin parallel structure more.
As the utility model discloses shield structure TBM ventilation heat transfer device in the tunnel, further, bushing type evaporimeter structure adopts and allies oneself with the parallelly connected structure of sleeve pipe more.
As the utility model discloses shield structure TBM tunnel interior ventilation heat transfer device, furtherly, condensation circulation pipeline utilizes compressor and extrinsic cycle water to carry out the heat exchange.
As the utility model discloses ventilation heat transfer device in shield structure TBM tunnel, furtherly, the outer air intake of tunnel cave is provided with the noise elimination cotton in the air pipeline.
As the utility model discloses shield structure TBM ventilation heat transfer device in tunnel, furtherly contains two air cooling evaporimeters, and these two air cooling evaporimeters set up in the fan both sides, carry out the two-stage heat exchange to the air outside the tunnel hole in proper order and handle.
As the utility model discloses ventilation heat transfer device in shield structure TBM tunnel, furtherly, air cooling evaporimeter and fan both are fixed in trailer top in the tunnel.
The utility model has the advantages that:
the utility model discloses through directly connecting fan and evaporimeter and realizing that fan secondary pressure boost relay, evaporimeter carry out the heat exchange with the outer air inlet in tunnel, can be fixed in the same platform trailer top simultaneously with fan and evaporimeter to reduce trailer installation space, practice thrift the cost, for further improvement heat exchange efficiency, can adopt fin formula or bushing type evaporimeter, in order to promote heat exchange efficiency through increasing evaporimeter heat exchange area; the cold medium in the evaporator is directly subjected to heat exchange with air inlet outside the tunnel to complete cooling in the tunnel, so that the tunnel construction operation environment is greatly improved, a comfortable operation environment can be created for operators, heatstroke is prevented, the temperature of mechanical equipment in the environment can be effectively reduced, the equipment failure rate is reduced, and the construction operation efficiency is improved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a ventilation and heat exchange device in an embodiment;
FIG. 1-1 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 1-2 is a schematic cross-sectional view B-B of FIG. 1;
FIGS. 1-3 are enlarged and schematic views of region I of FIGS. 1-2;
FIG. 2 is a second schematic structural diagram of a ventilation and heat exchange device in an embodiment;
FIG. 2-1 is a schematic cross-sectional view A-A of FIG. 2;
FIG. 2-2 is a schematic cross-sectional view B-B of FIG. 2;
2-3 is an enlarged schematic view of region I in FIG. 2-2;
FIG. 3 is a third schematic view of the ventilation and heat exchange apparatus in the embodiment;
FIG. 3-1 is a schematic cross-sectional view A-A of FIG. 3;
FIG. 3-2 is a schematic cross-sectional view B-B of FIG. 3;
FIG. 3-3 is a schematic cross-sectional view C-C of FIG. 3;
3-4 are enlarged schematic views of region II in FIGS. 3-3;
FIG. 4 is a fourth schematic view of the ventilation and heat exchange device in the embodiment;
FIG. 4-1 is a schematic cross-sectional view A-A of FIG. 4;
FIG. 4-2 is a schematic cross-sectional view B-B of FIG. 4;
FIG. 4-3 is a schematic cross-sectional view C-C of FIG. 4;
FIG. 4-4 is an enlarged view of region II of FIG. 4-3;
FIG. 5 is a schematic view of the tunnel installation side of the ventilation and heat exchange device in the embodiment;
FIG. 6 is one of the tunnel installation end faces of the ventilation and heat exchange device in the embodiment;
FIG. 7 is a second schematic view of the tunnel installation end face of the ventilation and heat exchange device in the embodiment;
FIG. 8 is a schematic view of a tunnel installation of the tunnel ventilation cooling system in an embodiment;
FIG. 9 is a schematic view of the working principle of the tunnel ventilation cooling system in the embodiment;
FIG. 10 is a schematic representation of an air cooler of a prior art tunnel ventilation cooling system of an embodiment;
FIGS. 11-1, 11-2, and 11-3 are schematic views showing the installation positions of both the fan and the evaporator in the embodiment, respectively.
In the figure, reference numerals 1 and 4 denote secondary blowers, reference numerals 2 and 5 denote evaporators, reference numerals 3 and 7 denote air duct extending devices, reference numeral 6 denotes a compressor and a freezing water tank system, reference numeral 8 denotes a blower, reference numeral 9 denotes a fin evaporator, reference numeral 10 denotes a sleeve-type evaporator, reference numeral 11 denotes a refrigerant inlet, reference numeral 12 denotes a refrigerant outlet, reference numeral 13 denotes a fin, reference numeral 14 denotes a sleeve, reference numeral 15 denotes noise damping cotton, and reference numeral 16 denotes a trailer.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention will be described in further detail with reference to the accompanying drawings and technical solutions.
Aiming at the situations of large occupied space, unchanged assembly and maintenance, low heat exchange efficiency and the like of the conventional tunnel ventilation refrigeration equipment, the embodiment of the utility model provides a shield/TBM (tunnel boring machine) tunnel internal ventilation and heat exchange device which is used for ventilation in a construction tunnel and comprises an air-cooled evaporator and a fan which are arranged in the tunnel, wherein air pipes of the air-cooled evaporator and the fan are directly connected into an integral structure; the air cooling evaporator is connected with the condensation circulating pipeline through a refrigerant inlet and a refrigerant outlet, and is used for carrying out heat exchange treatment on air outside the tunnel and pressurizing by using a fan so as to send the air after the heat exchange treatment into a tunnel construction operation environment. Referring to fig. 8-10, in the embodiment, the fan, the evaporator and the air duct extending device are sequentially arranged at the top of each trailer in the tunnel, occupy more trailers and inner space of the tunnel during arrangement, and are inconvenient to assemble and maintain. The embodiment of the utility model provides an in, directly link the connection with both tuber pipes of fan shown in figure 8 and 9 and evaporimeter, avoid again through inserting other tuber pipes and transmit, reduce equipment maintenance cost to carry out the heat exchange through fan secondary pressure boost relay, evaporimeter and the outer air inlet in tunnel, with the aeration cooling who realizes construction operation environment space in the tunnel. Further, in the embodiment, can be fixed in same platform trailer top simultaneously with fan and evaporimeter to reduce trailer installation space, practice thrift the cost, be convenient for equipment and later maintenance.
As the embodiment of the utility model provides an in shield structure TBM tunnel ventilation heat transfer device, furtherly, the air cooling evaporimeter adopts the refrigerant medium to carry out the heat exchange to the air and handles. Refrigerant, also called refrigerant, snow, working fluid for transferring heat energy in various heat engines to produce refrigeration effect, so as to complete the medium material of energy conversion. In the embodiment of the scheme, the refrigerant medium is directly used for carrying out heat exchange treatment with air, so that the conversion efficiency is improved.
As the embodiment of the utility model provides an in shield structure TBM tunnel ventilation heat transfer device, furtherly, the air cooling evaporimeter adopts fin formula evaporimeter structure or bushing type evaporimeter structure. The evaporator is used for converting liquid substances into gaseous substances; there are a large number of evaporators in the industry, of which the evaporator used in refrigeration systems is one. The evaporator is an important part in four major refrigeration parts, and low-temperature condensed liquid passes through the evaporator to exchange heat with external air, gasifies and absorbs heat, and achieves the refrigeration effect. Referring to fig. 1 to 7, the cross-sectional area of the evaporator is increased to increase the heat exchange rate between the refrigerant medium and the air in the evaporator, and both the finned evaporator and the double-pipe evaporator can be realized by using commercially available structures at present, and as shown in the figures, the evaporator can be in a circular or elliptical shape or other structures to increase the heat exchange area and the installation occasion.
As the embodiment of the utility model provides an in shield structure TBM tunnel ventilation heat transfer device, further, fin formula evaporimeter structure adopts and allies oneself with the fin parallel structure more. Further, the sleeve-type evaporator structure adopts a multi-connected sleeve-pipe parallel structure. Through the multi-connected parallel structure, the heat exchange treatment area can be effectively increased, so that the heat exchange treatment effect of the refrigerant and the air of the evaporator is improved.
As the embodiment of the utility model provides an in shield structure TBM tunnel ventilation heat transfer device, furtherly, condensation circulating line utilizes compressor and extrinsic cycle water to carry out the heat exchange.
As the embodiment of the utility model provides an in shield structure TBM tunnel ventilation heat transfer device, further, the outer air intake of tunnel cave is provided with the noise elimination cotton in the air pipeline, and noise reduction effect is good.
As the utility model discloses shield structure TBM ventilation heat transfer device in tunnel, furtherly contains two air cooling evaporimeters, and these two air cooling evaporimeters set up in the fan both sides, carry out the two-stage heat exchange to the air outside the tunnel hole in proper order and handle. Referring to fig. 11-1, the evaporator is arranged on the left, the fan is arranged on the right, the fan has less condensed water, the requirement on the protection grade of the fan is not high, but a silencer is separately arranged, so that the whole length is longer; in fig. 11-2, the fan is arranged in the middle, the two evaporators are respectively arranged on the two sides of the fan, the silencer can be integrated on the shell of the evaporator to shorten the overall length, but condensed water is separated out from the evaporator on the right part, and the requirement on the IP grade of the fan motor is high; in fig. 11-3, the fan is arranged on the left side, the evaporator is arranged on the right side, the fan can be arranged in a smaller space on one side, as shown in fig. 8, but the fan is not beneficial to sucking air, and the evaporator has a large amount of condensed water separated out, so that the requirement on the IP grade of the fan motor is higher. The embodiment of the utility model provides an in, adopt the fan setting in the centre, both sides difference fixed air cooling evaporimeter of lug connection to realize handling air two-stage heat exchange, directly link connection structure in the above-mentioned embodiment for fan air outlet and/or air intake connection's pipeline respectively with evaporimeter air intlet and/or export intercommunication, handle with the heat exchange of refrigerant in the air that realizes the tunnel hole advances outward and the evaporimeter. Further, in embodiments, both the air-cooled evaporator and the fan may be secured to the top of the trailer within the tunnel.
Referring to fig. 1-2, the air intake from the outside of the tunnel exchanges heat with the refrigerant in the finned evaporator 9, the refrigerant enters the refrigerant inlet 11 and flows through the fins 13, the multiple fins are connected in parallel, and the refrigerant flows out of the refrigerant outlet 12 and exchanges heat with the external circulating water through the compressor; air outside the tunnel is subjected to secondary pressurization relay through a secondary fan 8; the air intake outside the tunnel exchanges heat with the refrigerant in the finned evaporator 9 again. Referring to fig. 3-4, the air intake from the outside of the tunnel exchanges heat with the refrigerant in the sleeve-type evaporator 10, the refrigerant enters the refrigerant inlet 11 and flows through the sleeve 14, the multiple sleeves are connected in parallel, and the refrigerant flows out of the refrigerant outlet 12 and exchanges heat with the external circulating water through the compressor; air outside the tunnel is subjected to secondary pressurization relay through a secondary fan 8; the hole intake air exchanges heat with the refrigerant in the double pipe evaporator 10 again. In the embodiment, the air inlet outside the tunnel is subjected to heat exchange with a refrigerant of an air-cooled evaporator, and the air inlet is pressurized by a fan to send the cold air to the tunnel construction working environment, so that the effect of cooling in the tunnel is realized; and the refrigerant of the air cooling evaporator is sent into the compressor through the condensation circulating pipeline to perform heat exchange treatment with external circulating water and then sent into the air cooling evaporator to perform circulating heat exchange on the external air inlet of the tunnel.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and system may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A ventilation heat exchange device in a shield/TBM tunnel is used for ventilation in a construction tunnel and comprises an air-cooled evaporator and a fan which are arranged in the tunnel, and is characterized in that air pipes of the air-cooled evaporator and the fan are directly connected into an integral structure; the air cooling evaporator is connected with the condensation circulating pipeline through a refrigerant inlet and a refrigerant outlet, and is used for carrying out heat exchange treatment on air outside the tunnel and pressurizing by using a fan so as to send the air after the heat exchange treatment into a tunnel construction operation environment.
2. The shield/TBM in-tunnel ventilation and heat exchange device of claim 1, wherein the air-cooled evaporator adopts a refrigerant medium to perform heat exchange treatment on air.
3. The shield/TBM in-tunnel ventilation and heat exchange device of claim 1, wherein the air-cooled evaporator is of a fin-type evaporator structure or a sleeve-type evaporator structure.
4. The shield/TBM in-tunnel ventilation and heat exchange device of claim 3, wherein the finned evaporator structure is a multi-connected fin parallel structure.
5. The shield/TBM in-tunnel ventilation and heat exchange device of claim 3, wherein the sleeve-type evaporator structure adopts a multi-connected-sleeve parallel structure.
6. The shield/TBM in-tunnel ventilation and heat exchange device of claim 1, wherein the condensation circulation pipeline exchanges heat with external circulation water by using a compressor.
7. The shield/TBM in-tunnel ventilation and heat exchange device of claim 1, wherein an air inlet outside the tunnel in the air pipeline is provided with silencing cotton.
8. The shield/TBM ventilation and heat exchange device in the tunnel according to claim 1, wherein the device comprises two air-cooled evaporators which are arranged on two sides of the fan and sequentially perform two-stage heat exchange treatment on air outside the tunnel.
9. The shield/TBM in-tunnel ventilation and heat exchange apparatus of claim 1 wherein both the air-cooled evaporator and the fan are mounted on top of the in-tunnel trailer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020994441.9U CN212508390U (en) | 2020-06-03 | 2020-06-03 | Ventilation and heat exchange device in shield/TBM tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020994441.9U CN212508390U (en) | 2020-06-03 | 2020-06-03 | Ventilation and heat exchange device in shield/TBM tunnel |
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| CN212508390U true CN212508390U (en) | 2021-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677540A (en) * | 2020-06-03 | 2020-09-18 | 中铁工程装备集团盾构制造有限公司 | Ventilation and heat exchange device and method in shield/TBM tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677540A (en) * | 2020-06-03 | 2020-09-18 | 中铁工程装备集团盾构制造有限公司 | Ventilation and heat exchange device and method in shield/TBM tunnel |
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