Gas filter with water level sensor

Abstract

The utility model relates to the technical field of fuel gas filters, and discloses a fuel gas filter with a water level sensor, which comprises a fuel gas filter assembly, the fuel gas filter assembly comprises a filter tank, the top of the filter tank is provided with a filter seat in a threaded manner, and the bottom of the filter seat is provided with a filter element with a hollow structure in a threaded manner; an air inlet is formed in one side of the filter seat, the interior of the air inlet is communicated with the interior of the filter element, and an air outlet is formed in the side, far away from the air inlet, of the filter seat, the situation that the filter element is frozen can be effectively avoided, installation threads can be adjusted, joints of the air inlet and the air outlet can be selected according to actual conditions, and the filter element can be maintained and replaced; according to the working principle, the pressure sensor can be replaced according to needs, the alarm water level can be designed in a customized mode, the use convenience and economical efficiency are improved, meanwhile, the use and maintenance cost of the water level alarm device is greatly reduced, and the water level alarm device has extremely high practicability and convenience, wide application range and popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filters, in particular to a gas filter with a water level sensor. Background Art

[0002] As a clean energy, natural gas can significantly reduce exhaust emissions compared to traditional fuel, thereby reducing air pollution. With people's increasing attention to environmental issues, more and more logistics companies tend to choose natural gas heavy trucks to reduce environmental pollution. Natural gas heavy trucks have relatively low advantages in terms of use costs, including stable prices and low maintenance costs. In an environment of intensified competition in the logistics industry, the use of natural gas heavy trucks can help companies reduce operating costs and improve economic benefits. However, because natural gas contains a certain amount of water, in winter, if the gas filter is not drained in time, once the filter element freezes, it will be difficult to start the vehicle. In order to remind the owner to drain the water in time, a water level sensor is added to the gas filter. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a gas filter with a water level sensor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A gas filter with a water level sensor comprises a gas filter assembly, wherein the gas filter assembly comprises a filter canister, a filter seat is threadedly mounted on the top of the filter canister, and a filter element with a hollow structure is threadedly mounted on the bottom of the filter seat; an air inlet is arranged on one side of the filter seat, and the interior of the air inlet is connected to the interior of the filter element; an air outlet is arranged on the side of the filter seat away from the air inlet, and the interior of the air outlet is connected to the interior of the filter canister; a pressure sensor is installed at the bottom of the filter canister for detecting the water level in the filter canister; and a drain valve assembly is installed at the bottom of the filter canister.

[0006] As a further solution of the utility model: a filter element sealing ring is provided at the threaded connection between the filter element and the filter seat, which is used to seal between the filter element and the filter seat.

[0007] As a further solution of the utility model: a filter canister sealing ring is provided at the threaded connection between the filter canister and the filter seat, which is used to seal between the filter canister and the filter seat.

[0008] As a further solution of the utility model: the opening position of one end of the air outlet close to the inside of the filter tank is located outside the filter element.

[0009] As a further solution of the present invention: an installation area is arranged on the outer side of the filter seat.

[0010] As a further solution of the utility model: a water level sensor sealing ring is arranged on the pressure sensor to seal between the pressure sensor and the filter tank.

[0011] The beneficial effects of the utility model are as follows: when in use, the gas flows into the interior of the filter element through the air inlet, the gas passes through the side wall of the filter element and flows into the filter tank, the filtered gas in the filter tank is discharged through the air outlet, and the pressure sensor monitors the water level in the filter tank. When the water level in the filter tank reaches the set threshold, the pressure sensor sends a signal to remind the user to drain the filter tank in time, which effectively avoids the icing of the filter element. The mounting thread is adjustable, the joints of the air inlet and the air outlet can be selected according to actual conditions, the filter element can be replaced for maintenance, the working principle of the pressure sensor can be replaced according to needs, and the alarm water level can be customized. While improving the convenience and economy of use, it also greatly reduces the use and maintenance costs of the utility model. It has extremely high practicality, convenience, wide application range and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a gas filter with a water level sensor proposed by the utility model;

[0013] Figure 2 This is a structural cross-sectional view of a gas filter with a water level sensor proposed by the utility model;

[0014] Figure 3 The utility model provides a schematic diagram of the gas flow of a gas filter with a water level sensor.

[0015] In the figure: 1- gas filter assembly, 2- pressure sensor, 3- drain valve assembly, 4- filter seat, 5- filter element, 6- filter canister, 7- filter element sealing ring, 8- filter canister sealing ring, 9- water level sensor sealing ring, 10- installation area, 11- air inlet, 12- air outlet. DETAILED DESCRIPTION

[0016] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] Reference Figure 1-3A gas filter with a water level sensor comprises a gas filter assembly 1, wherein the gas filter assembly 1 comprises a filter tank 6, a filter seat 4 is threadedly mounted on the top of the filter tank 6, and a filter element 5 with a hollow structure is threadedly mounted on the bottom of the filter seat 4; an air inlet 11 is arranged on one side of the filter seat 4, and the interior of the air inlet 11 is connected to the interior of the filter element 5; an air outlet 12 is arranged on the side of the filter seat 4 away from the air inlet 11, and the interior of the air outlet 12 is connected to the interior of the filter tank 6; a pressure sensor 2 is installed at the bottom of the filter tank 6 for detecting the water level in the filter tank 6; a drain valve assembly 3 is installed at the bottom of the filter tank 6.

[0019] As a preferred embodiment of the utility model, a filter element sealing ring 7 is provided at the threaded connection between the filter element 5 and the filter seat 4 for sealing between the filter element 5 and the filter seat 4 .

[0020] As a preferred embodiment of the utility model, a filter canister sealing ring 8 is provided at the threaded connection between the filter canister 6 and the filter seat 4 for sealing between the filter canister 6 and the filter seat 4 .

[0021] As a preferred embodiment of the present utility model, the opening position of one end of the air outlet 12 close to the inside of the filter tank 6 is located outside the filter element 5.

[0022] As a preferred embodiment of the present invention, a mounting area 10 is provided on the outer side of the filter seat 4 .

[0023] As a preferred embodiment of the present utility model, the working principle of the water level sensor 2 is not limited to a float switch, high and low levels, photoelectric type, resistance type, etc.

[0024] As a preferred embodiment of the present utility model, the connector model of the water level sensor 2 is not limited to domestic or international models.

[0025] As a preferred embodiment of the present utility model, the installation area 10 is provided with installation threaded holes, and the specifications can be modified according to actual needs.

[0026] As a preferred embodiment of the present utility model, the sealing method between the water level sensor 2 and the bottom of the filter tank 6 is not limited to O-ring corner sealing and rectangular ring end face sealing.

[0027] As a preferred embodiment of the present utility model, the alarm electrode structure of the water level sensor 2 is not limited to the requirements shown in the figure.

[0028] As a preferred embodiment of the utility model, two mounting holes with the same inner diameter are opened at the bottom of the filter tank 6, which are respectively used to install the pressure sensor 2 and the drain valve assembly 3, that is, the installation positions of the pressure sensor 2 and the drain valve assembly 3 are not fixed and can be interchanged.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas filter with a water level sensor, comprising a gas filter assembly (1), characterized in that: The gas filter assembly (1) comprises a filter canister (6), a filter seat (4) is threadedly mounted on the top of the filter canister (6), and a filter element (5) with a hollow structure is threadedly mounted on the bottom of the filter seat (4); An air inlet (11) is provided on one side of the filter seat (4), the interior of the air inlet (11) is connected to the interior of the filter element (5), and an air outlet (12) is provided on the side of the filter seat (4) away from the air inlet (11), the interior of the air outlet (12) is connected to the interior of the filter tank (6); A pressure sensor (2) is installed at the bottom of the filter tank (6) for detecting the water level in the filter tank (6); A drain valve assembly (3) is installed at the bottom of the filter tank (6).

2. A gas filter with a water level sensor according to claim 1, characterized in that: A filter element sealing ring (7) is provided at the threaded connection between the filter element (5) and the filter seat (4) for sealing between the filter element (5) and the filter seat (4).

3. A gas filter with a water level sensor according to claim 1, characterized in that: A filter tank sealing ring (8) is provided at the threaded connection between the filter tank (6) and the filter seat (4) for sealing between the filter tank (6) and the filter seat (4).

4. A gas filter with a water level sensor according to claim 1, characterized in that: The opening position of one end of the air outlet (12) close to the interior of the filter tank (6) is located outside the filter element (5).

5. A gas filter with a water level sensor according to claim 1, characterized in that: An installation area (10) is provided on the outer side of the filter seat (4).

6. A gas filter with a water level sensor according to claim 1, characterized in that: The pressure sensor (2) is provided with a water level sensor sealing ring (9) for sealing between the pressure sensor (2) and the filter tank (6).

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