CN214616622U - Improved secondary ventilation system - Google Patents

Abstract

The utility model discloses a secondary ventilation system of improvement belongs to mechanical air conditioning system technical field, including pipeline group and overfire fan, pipeline group comprises a plurality of hard tuber pipes and soft tuber pipe, and is a plurality of interval distribution just connects into a straight line pipeline that can ventilate between hard tuber pipe and the soft tuber pipe, can dismantle through the clamp between hard tuber pipe and the soft tuber pipe and be connected, pipeline group's one end is connected with the air-supply line, overfire fan set up in between air-supply line and the pipeline group, all install condenser tube in the hard tuber pipe, condenser tube's both ends are provided with into water end, outlet end respectively, the utility model has the advantages of the space occupies less and has improved the cooling effect.

Description

Improved secondary ventilation system

Technical Field

The utility model relates to a mechanical air conditioning system technical field specifically is a secondary ventilation system of improvement.

Background

The shield machine is a tunnel boring machine using a shield method, and the basic working principle of the tunnel boring machine is that a cylindrical steel component is pushed forwards along the axis of a tunnel and excavates soil, and the high-temperature problem is easy to occur in the excavation process, so ventilation and refrigeration are needed.

The prior secondary ventilation system is shown in figure 2 and mainly comprises a pipeline group 2 ', a secondary fan 1' and an air cooler 10, hot air output into a tunnel from a tunnel enters from the air cooler 10, and is cooled by the secondary fan 1 'and then is output by the pipeline group 2', and the air cooler 10 is huge in size, so that the shield machine which is compact in layout originally occupies most space, the space is wasted, and inconvenience is brought to construction.

Based on this, the utility model designs an improved secondary ventilation system to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a secondary ventilation system of improvement to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a secondary ventilation system of improvement, includes pipeline group and overfire fan, the pipeline group comprises a plurality of hard tuber pipes and soft tuber pipe, and is a plurality of interval distribution just connects into a sharp pipeline that can ventilate between hard tuber pipe and the soft tuber pipe, can dismantle through the clamp and be connected between hard tuber pipe and the soft tuber pipe, the one end of pipeline group is connected with the air-supply line, overfire fan set up in between air-supply line and the pipeline group, all install condenser tube in the hard tuber pipe, the both ends of condenser tube are provided with into water end, play water end respectively.

Preferably, the cooling water pipe is spiral and spirally distributed along the length direction of the hard air pipe.

Preferably, the water inlet end of the cooling water pipe is arranged on one side far away from the air inlet pipe, and the water inlet end and the water outlet end are connected in parallel through a water inlet pipe and a water outlet pipe and are connected with an external water source.

Preferably, the number of the hard air pipes is at least two.

Preferably, the clamp comprises an upper lock ring, a connecting ring and a lower lock ring which are connected in sequence, one end of the upper lock ring, which is far away from the connecting ring, is rotatably connected with a locking buckle, the locking buckle is rotatably connected with a clamping ring, and the other end of the clamping ring is rotatably connected to the lower lock ring, so that a clamping space for the pipeline group to pass through is formed between the upper lock ring and the lower lock ring.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when using, at first let in the cooling water pipe inner loop cold water about 0 degree, the hole is defeated to advance the tunnel hot-blast to lead-in to secondary ventilation system through the air-supply line outward, hot-blast at first carries the pipeline group after secondary fan improves the velocity of flow of wind, reenter the condenser tube in the hard tuber pipe, cold water and hot-blast heat exchange that carries out through in the condenser tube, reduce the temperature of wind, through clamp connection between hard tuber pipe and the soft tuber pipe, can conveniently increase and decrease the quantity of hard tuber pipe, cool down to hot-blast through condenser tube, cancel the air cooler, can solve space occupation problem, and improved the cooling effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of a conventional secondary ventilation system;

FIG. 3 is a schematic view showing the structure of the clip according to this embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a secondary air fan; 2. a pipe set; 21. a hard air duct; 22. a flexible air duct; 3. clamping a hoop; 31. an upper lock ring; 32. a connecting ring; 33. a lower lock ring; 34. locking the buckle; 35. a collar; 36. clamping the space; 4. an air inlet pipe; 5. a cooling water pipe; 6. a water inlet end; 7. a water outlet end; 8. a water inlet pipe; 9. a water outlet pipe; 10. and (7) an air cooler.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a secondary ventilation system of improvement, including pipeline group 2 and overfire fan 1, pipeline group 2 comprises a plurality of hard tuber pipes 21 and soft tuber pipe 22, interval distribution and connect into a sharp pipeline that can ventilate between a plurality of hard tuber pipes 21 and the soft tuber pipe 22, can dismantle through clamp 3 between hard tuber pipe 21 and the soft tuber pipe 22 and be connected, the one end of pipeline group 2 is connected with air-supply line 4, overfire fan 1 sets up between air-supply line 4 and pipeline group 2, all install condenser tube 5 in the hard tuber pipe 21, condenser tube 5's both ends are provided with into water end 6 respectively, go out water end 7.

As shown in fig. 1, the cooling water pipe 5 is spiral and spirally distributed along the length direction of the hard air duct 21, and by providing the spiral cooling water pipe 5, the contact area between the cooling water pipe 5 and the hot air can be increased, and the cooling effect of the hot air can be improved.

As shown in fig. 1, the water inlet end 6 of the cooling water pipe 5 is arranged on one side far away from the air inlet pipe 4, the water inlet ends 6 and the water outlet ends 7 are connected in parallel with each other through the water inlet pipe 8 and the water outlet pipe 9 and are connected with an external water source, when the cooling water pipe is used, the external water source is introduced into the cooling water pipe 5 through the water inlet pipe 8, cold water flows to the water outlet ends 7 through the water inlet ends 6, the flow direction of the cold water is opposite to the hot air transfer direction, the hot air cooling effect can be further improved, and hot air is sufficiently cooled.

As shown in fig. 1, the number of the hard air pipes 21 is at least two, and when the refrigeration effect of the hot air is poor, the refrigeration effect of the hot air can be optimized by increasing or decreasing the number of the hard air pipes 21, and the operation is flexible and simple.

As shown in fig. 3, the clamp 3 is composed of an upper lock ring 31, a connection ring 32 and a lower lock ring 33 which are connected in sequence, one end of the upper lock ring 31, which is far away from the connection ring 32, is rotatably connected with a lock buckle 34, the other end of the lock buckle 35 is rotatably connected to the lower lock ring 33, so that a clamping space 36 which can be passed by the pipeline group 2 is formed between the upper lock ring 31 and the lower lock ring 33 in a surrounding manner, when the hard air duct 21 and the soft air duct 22 need to be disassembled, the lock buckle 34 is broken in a direction far away from the upper lock ring 31, the lock buckle 35 rotates along with the lock buckle 34, so that a gap of the clamping space 36 is increased, the hard air duct 21 and the soft air duct 22 can be disassembled, the tightness between the hard air duct 21 and the soft air duct 22 can be improved through the clamp 3, the problem of air leakage is prevented, and the whole disassembling process is simple, time-saving and labor-saving.

One specific application of this embodiment is:

in use the utility model discloses the time, at first let in the cold water about 0 degree in the end 6 of intaking with condenser tube 5, the hole is defeated to be gone into the tunnel hot-blast through the air-supply line 4 leading-in to secondary ventilation system, hot-blast at first carry pipeline group 2 after the velocity of flow of 1 improvement wind through secondary fan, reentrant condenser tube 5 in the hard tuber pipe 21, make cold water fully carry out the heat exchange with hot-blast through spiral helicine condenser tube 5, reduce the temperature of wind, the flow direction of cold water is opposite with hot-blast direction of transfer, can further improve hot-blast cooling effect, when hot-blast refrigeration effect is relatively poor, the accessible is dismantled clamp 3 between hard tuber pipe 21 and the soft tuber pipe 22, carry out increase and decrease regulation in quantity to hard tuber pipe 21, make hot-blast refrigeration effect reach the optimum.

To sum up, through condenser tube 5, pipeline group 2 and 1 structure of overfire air fan, can cool down hot-blast, play the effect that has solved the space and has occupied the problem and improved the cooling effect.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a secondary ventilation system of improvement, includes duct assembly (2) and overfire air fan (1), its characterized in that: pipeline group (2) comprise a plurality of hard tuber pipes (21) and air hose (22), and are a plurality of interval distribution and connect into a sharp pipeline that can ventilate between hard tuber pipe (21) and air hose (22), can dismantle through clamp (3) and be connected between hard tuber pipe (21) and air hose (22), the one end of pipeline group (2) is connected with air-supply line (4), overfire fan (1) set up in between air-supply line (4) and pipeline group (2), all install cooling water pipe (5) in hard tuber pipe (21), the both ends of cooling water pipe (5) are provided with into water end (6), outlet end (7) respectively.

2. An improved secondary ventilation system as claimed in claim 1, wherein: the cooling water pipes (5) are spiral and spirally distributed along the length direction of the hard air pipe (21).

3. An improved secondary ventilation system as claimed in claim 1, wherein: the cooling water pipe (5) intake end (6) set up in the one side of keeping away from air-supply line (4), and is a plurality of intake end (6), go out between water end (7) through inlet tube (8), outlet pipe (9) parallelly connected each other and be connected with outside water source.

4. An improved secondary ventilation system as claimed in claim 1, wherein: the number of the hard air pipes (21) is at least two.

5. An improved secondary ventilation system as claimed in claim 1, wherein: the clamp (3) comprises an upper lock ring (31), a connecting ring (32) and a lower lock ring (33) which are connected in sequence, wherein one end, far away from the connecting ring (32), of the upper lock ring (31) is rotatably connected with a lock buckle (34), the lock buckle (34) is rotatably connected with a clamping ring (35), and the other end of the clamping ring (35) is rotatably connected onto the lower lock ring (33) to enable the upper lock ring (31) and the lower lock ring (33) to be surrounded to form a clamping space (36) through which the pipeline group (2) can pass.

Images