Distributed directional air supply air conditioner terminal based on complex environment

Abstract

The utility model discloses a distributed directional air supply air conditioner terminal based on complex environment, which comprises a plurality of first refrigerators arranged at different positions of a shield tunneling machine, each first refrigerator comprises a shell, a fan and a chilled water pipe assembly, the fan and the chilled water pipe assembly are both arranged in the shell, the chilled water pipe assembly comprises a chilled water pipe, a base plate, an evaporator end plate and a fin plate, the cross section shape of the fin plate is limited by a U shape, the base plate is fixedly connected to the lower bottom plate, the fin plate is connected to the first fixing beam and the second fixing beam, the evaporator end plate is arranged on the fin plate, and the evaporator end plate is arranged on the fin plate. The freezing water pipe is arranged in the fin plate in a nested mode. The cross section of each fin plate is in a U shape, so that gas entering the shell from the three side faces of the shell can conveniently exchange heat with the fin plates, and the purpose of improving the cooling effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation and cooling equipment, in particular to a decentralized directional air supply air conditioning terminal based on a complex environment. Background Art

[0002] Existing shield machine ventilation and cooling usually involves installing multiple air conditioning units on the shield machine, directly generating cold air from the air conditioning units and transmitting it to the construction work area. The hot air generated by the air conditioning units is discharged into the tunnel through pipes and then discharged from the tunnel by natural ventilation. At the same time, forced ventilation is adopted, and fresh air is pressed into the tunnel air duct by the fan outside the tunnel, and then flows into the shield machine through the tunnel air duct. The existing technology directly injects cold air into the shield machine in a single way by setting a cold air outlet, and the cooling effect is poor. At the same time, the existing heat exchange surface is small and the heat exchange effect is poor. Therefore, the present application aims to provide a decentralized directional air supply air conditioning terminal with better cooling effect. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a decentralized directional air supply air conditioning terminal based on a complex environment.

[0004] The purpose of the utility model is achieved through the following technical solutions: a decentralized directional air supply air conditioning terminal based on a complex environment, including several first refrigerators arranged at different positions of a shield machine, the first refrigerator including an outer shell, a fan and a chilled water pipe assembly, the fan and the chilled water pipe assembly are both arranged in the outer shell, wherein the chilled water pipe assembly includes a chilled water pipe, a pad, an evaporator end plate and a fin plate whose cross-sectional shape is defined by a U-shape, the pad is fixedly connected to the lower base plate, the fin plate is connected to the first fixed beam and the second fixed beam, the evaporator end plate is arranged on the fin plate, and the chilled water pipe is nested in the fin plate.

[0005] Preferably, the decentralized directional air supply air conditioning terminal also includes a plurality of second refrigerators, wherein the first refrigerator is arranged at the top of the shield machine in a manner of injecting cold air into the interior of the shield machine, and the second refrigerator is arranged at the side of the shield machine in a manner of absorbing hot air from the interior of the shield machine, wherein on the same cross-section of the shield machine, the number of the second refrigerators is greater than the first refrigerator.

[0006] Preferably, on the same cross section of the shield machine, the air intake volume per unit time of the second refrigerator is greater than the air exhaust volume per unit time of the first refrigerator.

[0007] Preferably, along the extension direction of the shield machine, the internal air pressure of the shield machine gradually decreases from outside to inside.

[0008] Preferably, it further comprises a heat exchanger arranged inside the shield machine, the first refrigerator is coupled to the heat exchanger via a first heat exchange pipe, and the second refrigerator is coupled to the heat exchanger via a second heat exchange pipe.

[0009] Preferably, the first heat exchange pipe and the second heat exchange pipe are connected to each other in one direction.

[0010] Preferably, it further comprises a ventilator arranged outside the tunnel, wherein the ventilator is connected to the heat exchanger.

[0011] Preferably, it further comprises a circulating water tank arranged outside the tunnel, and the circulating water tank is connected to the heat exchanger.

[0012] The utility model has the following advantages:

[0013] (1) The first cooler injects cold air into the shield machine from the top, and the second cooler extracts hot air from the bottom, thereby achieving better cooling and heat dissipation effects.

[0014] (2) From the outside to the inside, the internal air pressure of the shield machine gradually decreases, which can form self-aspiration, which can help to draw the low-temperature air outside the tunnel into the tunnel, achieving the purpose of natural cooling.

[0015] (3) When the shield machine is working, the cutter head of the shield machine will generate heat due to friction with rocks and soil. The pressure difference formed can prevent the heat from the cutter head of the shield machine from being carried to the working area behind the shield machine in the form of air flow.

[0016] (4) The U-shaped cross-section of the fin plate can facilitate heat exchange between the gas entering the shell from the three sides of the shell and the fin plate, thereby achieving the purpose of improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a decentralized directional air supply air conditioning terminal in a complex environment;

[0018] Figure 2 A schematic diagram of the installation positions of the first refrigerator and the second refrigerator on the same cross section of the shield machine;

[0019] Figure 3 is an exploded view of the first refrigerator;

[0020] Figure 4 is a schematic diagram of the overall structure of the first refrigerator;

[0021] In the figure, 1-first refrigerator, 2-second refrigerator, 3-heat exchanger, 4-first heat exchange pipe, 5-second heat exchange pipe, 6-ventilator, 7-circulating water tank, 1a-housing, 1b-fan, 1c-chilled water pipe assembly, 101-lower base plate, 102-upper cover plate, 103-front fixed plate, 104-first honeycomb plate, 105-first fixed beam, 106-second fixed beam, 107-second honeycomb plate, 108-third honeycomb plate, 109-air outlet plate, 1c-1-fin plate, 1c-2-chilled water pipe, 1c-3-pad, 1c-4-evaporator end plate. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings, and the protection scope of the utility model is not limited to the following:

[0023] Example 1

[0024] like Figure 3 and Figure 4 As shown, the present application provides a decentralized directional air supply air conditioning terminal based on a complex environment, including a plurality of first refrigerators 1, each of which can be installed at a different station of a shield machine, so as to achieve the purpose of cooling the designated station. The first refrigerator 1 includes a shell 1a, a fan 1b and a chilled water pipe assembly 1c, and the fan 1b and the chilled water pipe assembly 1c are both arranged in the shell 1a. The fan 1b is used to suck the external gas into the shell 1a, and the sucked gas is subjected to heat exchange and cooling with the chilled water pipe assembly 1c, and then discharged from the shell 1a, so as to achieve refrigeration. Specifically, the shell 1a includes a lower base plate 101, an upper cover plate 102, a front fixed plate 103 and a first honeycomb plate 104. A first fixed beam 105 and a second fixed beam 106 parallel to each other are arranged between the lower base plate 101 and the upper cover plate 102. The first fixed beam 105 and the second fixed beam 106 on the left are provided with a second honeycomb panel 107, and the first fixed beam 105 and the second fixed beam 106 on the right are provided with a third honeycomb panel 108. External gas can enter the housing 1a through the first honeycomb panel 104, the second honeycomb panel 107 and the third honeycomb panel 108 to exchange heat with the chilled water pipe assembly 1c for cooling, and the cooled gas can be discharged through the air outlet panel 109 installed on the front fixed plate 103.

[0025] Preferably, the chilled water pipe assembly 1c includes a fin plate 1c-1 having a U-shaped cross-section, a chilled water pipe 1c-2, a pad 1c-3 and an evaporator end plate 1c-4. The pad 1c-3 is fixedly connected to the lower base plate 101. The fin plate 1c-1 is connected to the first fixed beam and the second fixed beam. The evaporator end plate 1c-4 is arranged on the fin plate 1c-1. The chilled water pipe 1c-2 is nested in the fin plate 1c-1. Chilled water flows in the chilled water pipe 1c-2, and the fin plate 1c-1 can increase the heat exchange area. The U-shaped cross-sectional shape of the fin plate 1c-1 can facilitate the gas entering the shell from the three sides of the shell to exchange heat with the fin plate 1c-1, thereby achieving the purpose of improving the cooling effect.

[0026] Example 2

[0027] like Figure 1 and Figure 2 As shown, the present application is based on the decentralized directional air supply air conditioning terminal in a complex environment, which can achieve better cooling and cooling effects by supporting use. It can be applied to complex environments such as the inside of a shield machine. Different terminal coolers are arranged at different stations of the shield machine to achieve the purpose of directional air supply, and each terminal only supplies air to one station of the shield machine. It includes a plurality of first coolers 1 and a plurality of second coolers 2 arranged at different positions of the shield machine. The first cooler 1 is arranged at the top of the shield machine in a manner of injecting cold air into the inside of the shield machine, and the second cooler 2 is arranged at the side of the shield machine in a manner of absorbing hot air inside the shield machine, wherein, on the same cross section of the shield machine, the number of the second coolers 2 is greater than the number of the first coolers 1. On the same cross section of the shield machine, the air intake volume of the second cooler 2 per unit time is greater than the exhaust volume of the first cooler 1 per unit time. The first cooler 1 can be a ceiling cooler. The second cooler 2 can be an exhaust fan. Along the extension direction of the shield machine, the internal air pressure of the shield machine gradually decreases in the order from the outside to the inside, that is, as Figure 1 As shown, the air pressure in area A is greater than that in area B. Through the above-mentioned setting method, at least the following technical effects can be achieved: First, the first refrigerator 1 injects cold air into the interior of the shield machine from the top, and the second refrigerator extracts hot air from the bottom, thereby achieving better cooling and heat dissipation effects. Second, in the order from the outside to the inside, the internal air pressure of the shield machine gradually decreases, thereby forming self-aspiration, which can facilitate the suction of low-temperature air outside the tunnel into the tunnel, achieving the purpose of natural cooling. Third, when the shield machine is working, the cutter head of the shield machine will generate heat due to friction with rocks and soil. Through the pressure difference formed, it is possible to prevent the heat in the cutter head of the shield machine from being driven to the working area behind the shield machine in the form of air flow.

[0028] Preferably, the decentralized directional air supply air conditioning terminal also includes a heat exchanger 3 arranged inside the shield machine and a ventilator 6 arranged outside the tunnel, and the ventilator 6 is connected to the heat exchanger 3. The first refrigerator 1 is coupled to the heat exchanger 3 via the first heat exchange pipe 4, and the second refrigerator 2 is coupled to the heat exchanger 3 via the second heat exchange pipe 5. The heat exchanger 3 is arranged at a position close to the tunnel entrance. At this time, the air with a lower temperature outside the tunnel can be injected into the heat exchanger 3 through the ventilator to form cold air with a lower temperature. The air temperature outside the tunnel is lower than that inside the tunnel, thereby reducing a certain amount of refrigeration cost compared to cooling by drawing gas from the tunnel. The first heat exchange pipe 4 and the second heat exchange pipe 5 are connected to each other in one direction, so that the cooled gas in the second heat exchange pipe 5 can enter the first heat exchange pipe 4.

[0029] Preferably, the decentralized directional air supply air conditioning terminal further includes a circulating water tank 7 arranged outside the tunnel, and the circulating water tank 7 is connected to the heat exchanger 3. The heat exchanger 3 may be an evaporative condenser, in which a refrigerant is arranged. After the first heat exchange pipe and the second heat exchange pipe exchange heat with the heat exchanger, the refrigerant absorbs heat and vaporizes. The heat exchanger can be cooled by the circulating water tank 7, so that the refrigerant is liquefied again, thereby achieving the purpose of recycling.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Based on the decentralized directional air supply air conditioning terminal in complex environment, it is characterized by: The invention comprises a plurality of first refrigerators (1) arranged at different positions of a shield machine, wherein the first refrigerator (1) comprises a housing (1a), a fan (1b) and a chilled water pipe assembly (1c), wherein the fan (1b) and the chilled water pipe assembly (1c) are both arranged in the housing (1a), wherein the chilled water pipe assembly (1c) comprises a chilled water pipe (1c-2), a pad (1c-3), an evaporator end plate (1c-4) and a fin plate (1c-1) whose cross-sectional shape is defined by a U-shape, wherein the pad (1c-3) is fixedly connected to a lower base plate (101), the fin plate (1c-1) is connected to a first fixed beam (105) and a second fixed beam (106), the evaporator end plate (1c-4) is arranged on the fin plate (1c-1), and the chilled water pipe (1c-2) is nested in the fin plate (1c-1).

2. The decentralized directional air supply air conditioning terminal according to claim 1 is characterized in that: The decentralized directional air supply air conditioning terminal further comprises a plurality of second refrigerators (2), wherein the first refrigerator (1) is arranged on the top of the shield machine in a manner of injecting cold air into the interior of the shield machine, and the second refrigerator (2) is arranged on the side of the shield machine in a manner of absorbing hot air from the interior of the shield machine, wherein on the same cross section of the shield machine, the number of the second refrigerators (2) is greater than the number of the first refrigerators (1).

3. The decentralized directional air supply air conditioning terminal according to claim 2 is characterized in that: On the same cross section of the shield machine, the air intake volume of the second refrigerator (2) per unit time is greater than the air exhaust volume of the first refrigerator (1) per unit time.

4. The decentralized directional air supply air conditioning terminal according to claim 3 is characterized in that: Along the extension direction of the shield machine, the internal air pressure of the shield machine gradually decreases from the outside to the inside.

5. The decentralized directional air supply air conditioning terminal according to claim 4, characterized in that: It also includes a heat exchanger (3) arranged inside the shield machine, the first refrigerator (1) is coupled to the heat exchanger (3) via a first heat exchange pipe (4), and the second refrigerator (2) is coupled to the heat exchanger (3) via a second heat exchange pipe (5).

6. The decentralized directional air supply air conditioning terminal according to claim 5, characterized in that: The first heat exchange pipe (4) and the second heat exchange pipe (5) are in one-way communication with each other.

7. The decentralized directional air supply air conditioning terminal according to claim 5, characterized in that: It also includes a ventilator (6) arranged outside the tunnel, wherein the ventilator (6) is connected to the heat exchanger (3).

8. The decentralized directional air supply air conditioning terminal according to claim 7, characterized in that: It also includes a circulating water tank (7) arranged outside the tunnel, wherein the circulating water tank (7) is connected to the heat exchanger (3).

Images