Air compressor function detection device for shield tunneling machine

Abstract

The utility model relates to the technical field of air compressor function detection, in particular to an air compressor function detection device for a shield tunneling machine, which comprises an air compressor and a detection mechanism, the air compressor is mounted on the shield tunneling machine, and the detection mechanism is mounted on one side of the air compressor. The detection mechanism is used for detecting the function of the air compressor while a cooling pipeline of the air compressor is not disconnected; according to the device, the detection mechanism is arranged, a pipeline is additionally arranged between the water storage tank and the water pump, and the fourth ball valve is installed, so that the water pump, the fourth ball valve, the water storage tank and the third ball valve form a channel, the water path circulation action during overhauling is achieved, and then comprehensive overhauling of the air compressor can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressor function detection, in particular to an air compressor function detection device for a shield machine. Background Art

[0002] As the excavation distance of the existing shield machine increases, the air power unit (i.e., the air compressor) of the shield machine is likely to age and be damaged; therefore, the air compressor needs to be regularly inspected and maintained. However, when the existing air compressor is inspected and maintained, the cooling pipes connected to the air compressor are all in a disconnected state, which makes it impossible to fully detect the functional status of the air compressor.

[0003] Therefore, an air compressor function detection device for a shield machine is designed to solve the above technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when the existing air compressor is under maintenance, the cooling pipelines connected to the air compressor are all in a disconnected state, thereby making it impossible to fully detect the functional status of the air compressor.

[0005] The utility model provides the following technical solutions: an air compressor function detection device for a shield machine, comprising an air compressor and a detection mechanism, wherein the air compressor is installed on the shield machine, and a detection mechanism is installed on one side of the air compressor, and the detection mechanism is used to detect the function of the air compressor without disconnecting the cooling pipeline of the air compressor.

[0006] Preferably, the detection mechanism includes a water pump, a No. 1 ball valve, a No. 2 ball valve, a water storage tank, a No. 3 ball valve, a No. 4 ball valve and a cooling pipe. The water pump is installed on a bracket, and one side of the No. 1 ball valve is installed on the left side of the water pump, and one side of the air compressor is installed at the lower end of the other side of the No. 1 ball valve, and one side of the No. 2 ball valve is installed on the other side of the air compressor. A water storage tank is installed on the other side of the No. 2 ball valve, and two water outlets are provided in the water storage tank, and cooling pipes are installed on the two water outlets. The other ends of the two cooling pipes connected to the water outlets are respectively installed on both sides of the water pump, and No. 3 ball valve and No. 4 ball valve are respectively installed on the cooling pipes; the water pump, No. 1 ball valve, No. 2 ball valve and water storage tank are all connected by cooling pipes.

[0007] Preferably, the No. 3 ball valve and the No. 4 ball valve are arranged in parallel.

[0008] Preferably, the No. 4 ball valve is in a normally closed state, and when the No. 4 ball valve is opened, the No. 1 ball valve and the No. 2 ball valve are closed.

[0009] Preferably, the No. 1 ball valve, the No. 2 ball valve, the No. 3 ball valve and the No. 4 ball valve are all one-way valves.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model installs a detection mechanism on the shield machine, adds a pipe between the water storage tank and the water pump and installs a No. 4 ball valve, so that the water pump, the No. 4 ball valve, the water storage tank and the No. 3 ball valve form a passage, thereby realizing the water circulation action during maintenance, and thus realizing the comprehensive maintenance of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is the principle diagram of the utility model;

[0014] Figure 2 This is the principle diagram of the heat exchange function of the air compressor for testing the utility model;

[0015] Figure 3 This is the principle diagram of the air compressor during maintenance of the utility model.

[0016] In the figure: A, air compressor; 1, water pump; 2, ball valve No. 1; 3, ball valve No. 2; 4, water storage tank; 5, ball valve No. 3; 6, ball valve No. 4. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model for which protection is sought, but merely represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invention product is usually placed when in use. Such terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention.

[0020] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The disclosed embodiment aims to solve the problem that the cooling pipes connected to the existing air compressor are disconnected during maintenance, which makes it impossible to fully detect the functional status of the air compressor. In view of this, the disclosed embodiment proposes a waterproof zipper screen printing machine, which sets a detection mechanism, adds a pipe between the water storage tank and the water pump, and installs a No. 4 ball valve, so that the water pump, No. 4 ball valve, water storage tank, and No. 3 ball valve form a passage, thereby realizing the water circulation action during maintenance, and thus realizing comprehensive maintenance of the air compressor.

[0022] like Figures 1 to 3 As shown, a function detection device for an air compressor A of a shield machine includes an air compressor A and a detection mechanism, wherein the air compressor A is installed on the shield machine, and a detection mechanism is installed on one side of the air compressor A, and the detection mechanism is used to detect the function of the air compressor A while continuously disconnecting the cooling pipeline of the air compressor A; when detecting the existing air compressor A, the entire cooling pipeline is usually disconnected, and then the air compressor A is detected. However, the detection of the existing air compressor A is not only performed on the air compressor A with the water flow disconnected, but also the heat exchange function of the air compressor A needs to be detected when the cooling water flows. Therefore, installing the detection mechanism on the air compressor A allows the staff to detect the cooling of the air compressor A system anytime and anywhere, ensuring that the functional status of the air compressor A can be effectively detected for a long time.

[0023] like Figure 1As shown, the detection mechanism includes a water pump 1, a No. 1 ball valve 2, a No. 2 ball valve 3, a water storage tank 4, a No. 3 ball valve 5, a No. 4 ball valve 6 and a cooling pipe. The water pump 1 is installed on a bracket. The water pump 1 is the power unit of the entire system. At the same time, the flow rate and lift of the water pump 1 determine the conveying capacity and water pressure of the water pump 1; a side of the No. 1 ball valve 2 is installed on the left side of the water pump 1, and a side of the air compressor A is installed at the lower end of the other side of the No. 1 ball valve 2. The No. 1 ball valve 2 is used to control the passage between the water pump 1 and the air compressor A; a side of the No. 2 ball valve 3 is installed on the other side of the air compressor A. A water tank is installed on the other side of the No. 2 ball valve 3, and the No. 2 ball valve 3 is used to control the passage between the air compressor A and the water tank; two water outlets are provided in the water tank, and cooling pipes are installed on the two water outlets, and the other ends of the two cooling pipes connected to the water outlets are respectively installed on both sides of the water pump 1, and the cooling pipes are respectively installed with a No. 3 ball valve 5 and a No. 4 ball valve 6; the No. 3 ball valve 5 and the No. 4 ball valve 6 are used to control the passage between the water tank and the water pump 1; the water pump 1, the No. 1 ball valve 2, the No. 2 ball valve 3, and the water tank 4 are all connected by cooling pipes;

[0024] When working, first check whether the water tank 4 is full of liquid level, and confirm that the No. 1 ball valve 2, No. 2 ball valve 3 and No. 3 ball valve 5 are in the open state, and the No. 4 ball valve 6 is in the closed state. Then start the water pump 1 and immediately check whether there is any water leakage in the system pipeline. If there is any water leakage, stop it immediately and repair and replace the pipeline. If it is running normally, check whether the outlet pressure of the water pump 1 is within the allowable range. The general detection range is 0-5bar. If everything is normal, proceed to the next step. If there is an abnormal pressure, stop the inspection immediately. After the maintenance is completed, restart the water pump 1. Then the water pump 1 draws water from the water tank 4 through the No. 3 ball valve 5. After being pressurized by the water pump 1, it reaches the No. 1 ball valve 2, and then enters the air compressor A. After realizing the heat exchange of the air compressor A, it passes through the No. 2 ball valve 3 and observes the inlet and outlet temperature difference. Finally, it returns to the water tank 4 to complete the heat exchange function of the air compressor A.

[0025] When it is necessary to overhaul air compressor A or suspend cooling of air compressor A, first check whether water tank 4 is full of liquid, and confirm that ball valve No. 1 2 and ball valve No. 2 3 are in the closed state, and ball valve No. 3 5 and ball valve No. 4 6 are in the open state. Then start water pump 1, and after completing the post-pump start-up steps for cooling air compressor A, circulating water pump 1 draws water from water tank 4 through ball valve No. 3 5, and after being pressurized by circulating water pump 1, reaches ball valve No. 4 6, and finally returns to water tank 4, and finally completes the circulation action during overhaul.

[0026] By adopting the above-mentioned detection mechanism, the air compressor A can be inspected and repaired without disconnecting the cooling pipe. This method is very convenient and quick. At the same time, the corresponding valve can be closed at any time to inspect the air compressor A while the air compressor A is working. In addition, the heat exchange of the air compressor A can be detected by two flow methods, and the air compressor A can be shut down for inspection and repair at the same time.

[0027] like Figure 1 As shown, the No. 3 ball valve 5 and the No. 4 ball valve 6 are arranged in parallel. The No. 3 ball valve 5 and the No. 3 ball valve 5 are arranged in parallel so that the water pump 1, the No. 3 ball valve 5 and the No. 4 ball valve 6 can form a new circuit when the air compressor A is shut down for maintenance. Therefore, the air compressor A can be isolated without shutting down the entire water system, thereby realizing the shutdown of the air compressor A for maintenance.

[0028] like Figure 1 As shown, the No. 4 ball valve 6 is in a normally closed state, and when the No. 4 ball valve 6 is opened, the No. 1 ball valve 2 and the No. 2 ball valve 3 are closed; when the No. 4 ball valve 6 is closed, the entire process is the normal working process of the air compressor A. At this time, the cooling water flows through the air compressor A, and the heat exchange function of the air compressor A can be detected; when the No. 4 ball valve 6 is opened, the No. 1 ball valve 2 and the No. 2 ball valve 3 are closed, so the water pump 1 draws water from the water storage tank 4 and enters the water pump 1 through the No. 3 ball valve 5. After the water flow is pressurized, it flows to the No. 4 ball valve 6. At this time, there is no cooling water flow passing through the air compressor A, and the air compressor A can be shut down for inspection.

[0029] like Figure 1 As shown, the No. 1 ball valve 2, No. 2 ball valve 3, No. 3 ball valve 5 and No. 4 ball valve 6 are all one-way valves. The one-way valve is used when the No. 1 ball valve 2, No. 2 ball valve 3, No. 3 ball valve 5 and No. 4 ball valve 6 are opened. At this time, since the water flow needs to flow in one direction, the above ball valves are all set as one-way valves to avoid backflow when the water flow rate is small, thereby affecting the workflow of the entire system.

[0030] When working, first check whether the water tank 4 is full of liquid level, and confirm that the No. 1 ball valve 2, No. 2 ball valve 3 and No. 3 ball valve 5 are in the open state, and the No. 4 ball valve 6 is in the closed state. Then start the water pump 1 and immediately check whether there is any water leakage in the system pipeline. If there is any water leakage, stop it immediately and repair and replace the pipeline. If it is running normally, check whether the outlet pressure of the water pump 1 is within the allowable range. The general detection range is 0-5bar. If everything is normal, proceed to the next step. If there is an abnormal pressure, stop the inspection immediately. After the maintenance is completed, restart the water pump 1. Then the water pump 1 draws water from the water tank 4 through the No. 3 ball valve 5. After being pressurized by the water pump 1, it reaches the No. 1 ball valve 2, and then enters the air compressor A. After realizing the heat exchange of the air compressor A, it passes through the No. 2 ball valve 3 and observes the inlet and outlet temperature difference. Finally, it returns to the water tank 4 to complete the heat exchange function of the air compressor A.

[0031] When it is necessary to overhaul air compressor A or suspend cooling of air compressor A, first check whether water tank 4 is full of liquid, and confirm that ball valve No. 1 2 and ball valve No. 2 3 are in the closed state, and ball valve No. 3 5 and ball valve No. 4 6 are in the open state. Then start water pump 1, and after completing the post-pump start-up steps for cooling air compressor A, circulating water pump 1 draws water from water tank 4 through ball valve No. 3 5, and after being pressurized by circulating water pump 1, reaches ball valve No. 4 6, and finally returns to water tank 4, and finally completes the circulation action during overhaul.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A function detection device for an air compressor (A) of a shield machine, characterized in that: The invention comprises an air compressor (A) and a detection mechanism, wherein the air compressor (A) is installed on a shield machine, and a detection mechanism is installed on one side of the air compressor (A), and the detection mechanism is used to detect the function of the air compressor (A) without disconnecting the cooling pipeline of the air compressor (A); The detection mechanism comprises a water pump (1), a No. 1 ball valve (2), a No. 2 ball valve (3), a water storage tank (4), a No. 3 ball valve (5), a No. 4 ball valve (6) and a cooling pipe. The water pump (1) is mounted on a bracket. A side of the No. 1 ball valve (2) is mounted on the left side of the water pump (1). A side of an air compressor (A) is mounted on the lower end of the other side of the No. 1 ball valve (2). A side of the No. 2 ball valve (3) is mounted on the other side of the air compressor (A). A water storage tank is mounted on the other side of the No. 2 ball valve (3). Two water outlets are arranged in the water storage tank. Cooling pipes are mounted on the two water outlets. The other ends of the two cooling pipes connected to the water outlets are mounted on both sides of the water pump (1) respectively. The cooling pipes are mounted on the cooling pipes respectively. The water pump (1), the No. 1 ball valve (2), the No. 2 ball valve (3) and the water storage tank (4) are all connected by cooling pipes.

2. The function detection device for an air compressor (A) for a shield machine according to claim 1, characterized in that: The No. 3 ball valve (5) and the No. 4 ball valve (6) are arranged in parallel.

3. The function detection device for an air compressor (A) for a shield machine according to claim 1, characterized in that: The No. 4 ball valve (6) is in a normally closed state, and when the No. 4 ball valve (6) is opened, the No. 1 ball valve (2) and the No. 2 ball valve (3) are closed.

4. The function detection device for an air compressor (A) for a shield machine according to claim 1, characterized in that: The No. 1 ball valve (2), No. 2 ball valve (3), No. 3 ball valve (5) and No. 4 ball valve (6) are all one-way valves.

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