Vacuum tank for sewage storage

Abstract

The utility model relates to a vacuum tank for storing sewage in the field of sewage collecting devices of garbage transfer stations, which comprises a vertically arranged vacuum tank, a water inlet and a suction scavenging port are arranged at the top of the vacuum tank, a drain pipe and a drain valve are arranged at the bottom of the vacuum tank, the vacuum tank is supported on a base, and the vacuum tank is arranged on the base. The base is provided with a plurality of supporting legs used for supporting the vacuum tank, the vacuum tank is supported on the base in a suspended mode, the multiple supporting legs are symmetrically arranged around the central axis of the vacuum tank, and a weighing sensor is arranged between each supporting leg and the base and used for monitoring the water storage amount in the vacuum tank. According to the vacuum tank disclosed by the utility model, the total weight change of the tank is monitored by arranging the plurality of weighing sensors at the bottom of the tank, and the water storage capacity in the tank can be intuitively judged according to data displayed by the weighing sensors according to the capacity of the tank and the corresponding relation between the weight of the tank and the water quantity in the tank which are quantitatively marked in advance, so that the water quantity in the tank can be accurately known.

Description

Technical Field

[0001] The utility model relates to a sewage collection and storage device for a garbage transfer station, in particular to a vacuum tank for sewage storage. Background Art

[0002] One type of container for storing sewage in a garbage transfer station is a vacuum sewage tank. When storing water, the tank is in a vacuum state. When draining water, first release the pressure and inflate, and then drain water at the drain port. The conventional operation method for monitoring the water volume in the vacuum tank is to set a liquid level sensor in the tank. When the liquid level reaches a preset high level, the sewage in the tank must be drained into the subsequent sewage treatment link. It can also be drained regularly when the water level is above the lowest water level according to the water inlet demand of the sewage treatment setting. Therefore, it is necessary to monitor the water storage volume in the tank at any time. However, when a liquid level sensor is set in a sealed tank, due to the high content of dirt and impurities in the sewage, the sensing probe of the liquid level sensor is often wrapped by the adhered dirt after being immersed in the sewage for a period of time, which affects the sensitivity of the probe, often causing false measurements. Obviously, the water level in the tank has not reached the preset water level, but it shows that the water level is full, and the pressure relief and drainage program is misstarted, resulting in chaos in the program execution. And in order to maintain the sensitivity of the probe monitoring, it is often necessary to disassemble and clean the liquid level sensor, increasing the setting maintenance program and maintenance cost. Content of the Utility Model

[0003] Aiming at the problem that the liquid level monitoring device in the vacuum sewage tank of the garbage transfer station in the prior art is easily adhered by dirt and has poor sensitivity, the utility model provides a vacuum tank for sewage storage that monitors the water storage volume by weight.

[0004] The purpose of the utility model is realized as follows: A vacuum tank for sewage storage, including a vertically arranged vacuum tank, the top of the vacuum tank is provided with a water inlet and a suction and ventilation port, the bottom of the vacuum tank is provided with a drain pipe and a drain valve, the vacuum tank is supported on a base, and it is characterized in that several supporting feet for supporting the vacuum tank are arranged on the base, so that the vacuum tank is suspended and supported on the base, several of the supporting feet are arranged symmetrically about the central axis of the vacuum tank, and a weighing sensor is arranged between each supporting foot and the base for monitoring the water storage volume in the vacuum tank.

[0005] For the vacuum tank of the utility model, by setting multiple weighing sensors at the bottom of the tank to monitor the total weight change of the tank, according to the capacity of the tank, the corresponding relationship between the tank weight and the water volume in the tank is pre-quantitatively marked, and the water storage volume in the tank can be intuitively judged according to the data displayed by the weighing sensors, so as to accurately know the water volume in the tank. In addition, the weighing error will not have a great impact on the determination of the water volume in the tank.

[0006] For the convenience of fixing and installing the tank body, the base includes a bottom frame formed by fixedly connecting the heads and tails of multiple steel sections, a connecting bottom beam is provided between adjacent steel sections, the weighing sensors and the supporting feet are respectively arranged on each connecting bottom beam, and a reinforcing beam is also connected between each adjacent connecting bottom beam.

[0007] Furthermore, the weighing sensor is connected to the display through a digital-to-analog conversion module for transmission.

[0008] For the convenience of draining water, the drain pipe is arranged at the center of the bottom of the vacuum tank. The drain pipe includes a vertical pipe connected to the bottom of the vacuum tank and a horizontal extension pipe extending horizontally. A flange is connected to the outlet end of the horizontal extension pipe, and a drain valve is connected to the flange opening.

[0009] For the convenience of vacuum suction inside the tank and pressure relief and inflation before draining water, the suction and ventilation port is used to connect to the vacuum suction system and the inflation system respectively; before the vacuum tank stores sewage, the suction and ventilation port is communicated with the vacuum suction system, and before the vacuum tank stores water up to the highest water level and drains water, the suction and ventilation port is communicated with the inflation system.

[0010] For the convenience of switching between vacuum suction and pressure relief and inflation, a vacuum suction branch and an inflation branch are respectively branched and connected on the connecting pipeline of the suction and ventilation port. Description of the Drawings

[0011] Figure 1 is a perspective view of the vacuum tank for sewage storage of the present utility model.

[0012] Figure 2 is a front view of the vacuum tank for sewage storage of the present utility model.

[0013] Figure 3 is a double-tank structure diagram of the vacuum tank for sewage storage of the utility model.

[0014] Wherein, 1 is the vacuum tank; 2 is the water inlet; 3 is the suction and ventilation port; 4 is the drain pipe; 5 is the drain valve; 6 is the weighing sensor; 7 is the protective cover; 8 is the base; 801 is the bottom frame; 802 is the connecting bottom beam; 803 is the reinforcing beam; 9 is the supporting foot. Detailed Embodiment

[0015] Such as Figure 1 and Figure 2As shown in the figure, the vacuum tank for sewage storage of the present utility model includes a vertically arranged vacuum tank 1, which is supported on a base 8. There are several support feet 9 on the base 8 for supporting the vacuum tank 1, so that the vacuum tank 1 is suspended and supported on the base 8. To make the vacuum tank stable, several support feet 9 are arranged symmetrically about the center axis of the vacuum tank 1. A weighing sensor 6 is provided between each support foot 9 and the base 8 for monitoring the water storage volume in the vacuum tank 1. As shown in the figure, in this implementation, four support feet 9 are arranged at the bottom of the tank for support, and weighing sensors 6 are arranged between the support feet 9 and the base 8. To ensure that the weight readings of each weighing sensor are the same, after installing and supporting the tank body and all auxiliary devices attached to the tank body, the initial readings of each weighing sensor need to be adjusted to the same reading, so that when the water is stored and drained in the tank, the weights and readings of each weighing sensor increase and decrease synchronously.

[0016] To facilitate the stable installation of the tank body, the base 8 of the present utility model includes a bottom frame 801 formed by fixedly connecting the heads and tails of multiple steel profiles. Connecting bottom beams 802 are provided between adjacent steel profiles. Weighing sensors 6 and support feet 9 are respectively arranged on each connecting bottom beam 802. To further ensure the anti-deformation ability of the base 8, strengthening beams 803 are also connected between adjacent connecting bottom beams 802.

[0017] To facilitate the intuitive monitoring of the water storage volume in the vacuum tank 1, the weighing sensor 6 is connected to the display through an analog-to-digital conversion module. The analog-to-digital conversion module can perform data conversion and processing, and can visually display and output the water volume in the tank through the display, and thereby control the water inlet and drainage volume and the timing of inflation or pressure relief in the tank.

[0018] As shown in the figure

[0019] To facilitate the drainage of the vacuum tank, a drain pipe 4 is arranged at the center of the bottom of the vacuum tank 1. The drain pipe 4 includes a vertical pipe connected to the bottom of the vacuum tank 1 and a horizontally extending horizontal outlet pipe. A flange is connected to the outlet end of the horizontal outlet pipe, and a drain valve 5 is connected to the flange opening. This drain valve can be selected as a pneumatic drain valve to achieve pneumatic control.

[0020] To facilitate the vacuum suction in the tank and the pressure relief and inflation before drainage, a suction and ventilation port 3 is used to connect to the vacuum suction system and the inflation system respectively. To facilitate the alternating switching of the two systems, a vacuum suction branch and an inflation branch are respectively branched and connected to the connecting pipeline of the suction and ventilation port 3. Before the vacuum tank 1 stores sewage, the suction and ventilation port 3 is connected to the vacuum suction system. When the weighing sensor shows that the vacuum tank 1 stores water to the highest water level, before drainage, the suction and ventilation port 3 is connected to the inflation system.

[0021] The vacuum tank 1 of the present utility model monitors the change in the total weight of the tank by arranging a plurality of weighing sensors with consistent readings at the bottom of the tank. According to the capacity of the tank, the corresponding relationship between the tank weight and the water volume in the tank is pre-quantitatively marked, and the water storage volume in the tank can be intuitively judged according to the data displayed by the weighing sensors 6, so as to accurately know the water volume in the tank. The tank body is suspended and supported, and a plurality of weighing sensors 6 are symmetrically arranged to monitor the change in the weight of the tank body. Through calibration during installation, the readings of multiple weighing sensors can be synchronized, and the deformation error of the total weight determined by the method of obtaining multiple readings is small, reducing the error influence on the determination of the water volume in the tank. The vertical vacuum tank structure of the present utility model can increase the capacity of the tank body by controlling the aspect ratio, saving the floor area of the on-site installation plane.

[0022] In addition, as Figure 3 shown, according to the demand for the sewage storage volume in the garbage transfer station, multiple groups of vacuum tanks can be installed side by side for use.

Claims

1. A vacuum tank for sewage storage, comprising a vertically arranged vacuum tank. An inlet and a suction ventilation port are provided at the top of the vacuum tank, a drain pipe and a drain valve are provided at the bottom of the vacuum tank, and the vacuum tank is supported on a base. It is characterized in that, A plurality of support feet for supporting the vacuum tank are provided on the base, so that the vacuum tank is suspended and supported on the base. A plurality of the support feet are arranged symmetrically about the central axis of the vacuum tank, and a weighing sensor is provided between each support foot and the base for monitoring the water storage amount in the vacuum tank.

2. The vacuum tank for sewage storage according to claim 1, characterized in that, The base includes a bottom frame formed by fixedly connecting the heads and tails of a plurality of steel sections. Connecting bottom beams are provided between adjacent steel sections. The weighing sensors and the support feet are respectively arranged on each connecting bottom beam, and reinforcing beams are further connected between adjacent connecting bottom beams.

3. The vacuum tank for sewage storage according to claim 1, characterized in that, The weighing sensor is connected to the display through an analog-to-digital conversion module.

4. The vacuum tank for sewage storage according to claim 1, characterized in that, The drain pipe is arranged at the center of the bottom of the vacuum tank. The drain pipe includes a vertical pipe connected to the bottom of the vacuum tank and a horizontal extension pipe extending horizontally. A flange is connected to the outlet end of the horizontal extension pipe, and a drain valve is connected to the flange opening.

5. The vacuum tank for sewage storage according to claim 1, characterized in that, The suction and ventilation port is used to connect to a vacuum suction system and an inflation system respectively; before the vacuum tank stores sewage, the suction and ventilation port is communicated with the vacuum suction system, and before the vacuum tank drains water when the water storage reaches the highest water level, the suction and ventilation port is communicated with the inflation system.

6. The vacuum tank for sewage storage according to claim 1, wherein A vacuum suction branch and an inflation branch are respectively branched and connected to the connecting pipeline of the suction and ventilation port.

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