Gas filter with pressure sensor

Abstract

The utility model relates to the technical field of fuel gas filters, and discloses a fuel gas filter with a pressure sensor, which comprises a fuel gas filter assembly, the fuel gas filter assembly comprises a filter tank, a filter seat is mounted at the top of the filter tank in a threaded manner, a mounting hole is formed in the outer side of the filter seat, and the pressure sensor is mounted in the mounting hole; when the water purifier is used and the pressure change in the filter element exceeds a set threshold value, the pressure sensor can send out a signal to remind a user to maintain and replace the filter element, and the user can take corresponding measures in time according to the signal of the pressure sensor, so that the water purifier is convenient to use. The cleanliness of the fuel gas and the supply stability are ensured; the fuel gas filter is simple in structure and convenient to install, the pressure sensor can accurately monitor the working state of the filter element, a user is prompted to replace the filter element in time, the service life of an engine is greatly prolonged, and the fuel gas filter has good practicability and economic benefits.

Description

Technical Field

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

[0002] The advantages of natural gas include abundant resources, low emission pollution, and low price. It is increasingly valued and is considered to be a fuel with great development prospects. Most people regard natural gas as the third largest energy source in the world after coal and oil, and it plays an increasingly important role. Its main component is methane, which is a gaseous fuel that can be fully mixed with air. Therefore, there is basically no particulate emission after its combustion, and the amount of CO generated after combustion is also very small. Compared with other fossil fuels, it produces the least pollutant emissions in the entire life cycle of mining, production, storage, transportation, and use. Therefore, natural gas is also called "clean fuel". With the large-scale entry of natural gas engines into the automobile market, although there are maintenance instructions for the maintenance of gas filter elements, most car owners often forget to maintain them after using the vehicles for a long time, resulting in overload of gas filter elements, which may wear the engine moving parts and reduce the engine life; the engine is easy to stall; acceleration is not strong and weak, etc. The existing gas filter is modularly designed to provide the engine with a pressure alarm signal, which prompts the owner to replace the filter element through this signal. Utility Model Content

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

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

[0005] A gas filter with a pressure 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, a mounting hole is provided on the outer side of the filter seat, a pressure sensor is installed inside the mounting hole for detecting the gas pressure in the gas filter assembly; a hollow filter element is threadedly mounted on one side of the filter seat located inside the filter canister; an air inlet is provided on one side of the filter seat, the interior of the air inlet is connected to the interior of the filter element, an air outlet is provided on the side of the filter seat away from the air inlet, the interior of the air outlet is connected to the interior of the filter canister; a drain valve assembly is provided at the bottom of the filter canister.

[0006] 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 seat and the filter canister.

[0007] As a further solution of the utility model: a pressure sensor sealing ring is arranged inside the mounting hole to seal between the pressure sensor 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 utility model: an installation area is arranged on the outer side of the filter seat.

[0010] As a further solution of the utility model: the pressure sensing head of the pressure sensor is located inside the filter element.

[0011] As a further solution of the utility model: the pressure sensor is connected to the outer side of the filter seat by means of mounting screws.

[0012] The beneficial effects of the utility model are as follows: when in use, the gas enters the filter element from 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 pressure condition in the filter element. When the pressure change in the filter element exceeds the set threshold, the pressure sensor will send a signal to remind the user to maintain and replace the filter element. The user can take corresponding measures in time according to the signal of the pressure sensor to ensure the cleanliness of the gas and the stability of the supply. The gas filter of the utility model has a simple structure and is easy to install. The pressure sensor can accurately monitor the working status of the filter element and promptly remind the user to replace the filter element, which greatly extends the life of the engine and has good practicality and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a gas filter with a pressure sensor proposed by the utility model;

[0014] Figure 2 This is a cross-sectional view of the filter seat, filter tank and filter element structure of a gas filter with a pressure sensor proposed by the utility model;

[0015] Figure 3 This is a cross-sectional view of a filter canister and filter seat structure of a gas filter with a pressure sensor proposed by the utility model;

[0016] Figure 4 The utility model provides a schematic diagram of the gas flow of a gas filter with a pressure sensor.

[0017] In the figure: 1-gas filter assembly, 2-pressure sensor, 3-mounting screws, 4-filter seat, 5-filter element, 6-filter canister, 7-drain valve assembly, 8-filter canister sealing ring, 9-pressure sensor sealing ring, 10-installation area, 11-air outlet, 12-air inlet, 13-installation hole. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] 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.

[0020] Reference Figure 1-4 A gas filter with a pressure 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, a mounting hole 13 is provided on the outer side of the filter seat 4, a pressure sensor 2 is installed inside the mounting hole 13 for detecting the gas pressure in the gas filter assembly 1; a hollow filter element 5 is threadedly mounted on one side of the filter seat 4 located inside the filter tank 6; an air inlet 12 is provided on one side of the filter seat 4, the interior of the air inlet 12 is connected to the interior of the filter element 5, an air outlet 11 is provided on the side of the filter seat 4 away from the air inlet 12, the interior of the air outlet 11 is connected to the interior of the filter tank 6; a drain valve assembly 7 is provided at the bottom of the filter tank 6.

[0021] As a preferred embodiment of the present invention, the filter element 5 can be set with different precisions to meet different power system requirements.

[0022] 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 seat 4 and the filter canister 6 .

[0023] As a preferred embodiment of the present utility model, a pressure sensor sealing ring 9 is arranged inside the mounting hole 13 to seal between the pressure sensor 2 and the filter seat 4 .

[0024] As a preferred embodiment of the present invention, the sealing method between the filter seat 4 and the pressure sensor 2 can be either corner sealing or end face sealing.

[0025] As a preferred embodiment of the present utility model, the opening position of one end of the air outlet 11 close to the inside of the filter tank 6 is located outside the filter element 5.

[0026] As a preferred embodiment of the present invention, a mounting area 10 is provided on the outer side of the filter seat 4 .

[0027] As a preferred embodiment of the present utility model, the pressure sensing head of the pressure sensor 2 is located inside the filter element.

[0028] As a preferred embodiment of the present utility model, the pressure sensor 2 is connected to the outer side of the filter seat 4 by means of mounting screws 3 .

[0029] As a preferred embodiment of the present utility model, the pressure sensor 2 and the filter seat 4 are connected by threaded connection, welding, riveting and the like. Preferably, in the present embodiment, the pressure sensor 2 and the filter seat 4 are connected by threaded connection.

[0030] 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 pressure 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), a mounting hole (13) is provided on the outside of the filter seat (4), and a pressure sensor (2) is mounted inside the mounting hole (13) for detecting the gas pressure in the gas filter assembly (1); The filter seat (4) is located inside the filter tank (6) and has a hollow filter element (5) threadedly mounted on one side thereof; An air inlet (12) is provided on one side of the filter seat (4), the interior of the air inlet (12) is connected to the interior of the filter element (5), and an air outlet (11) is provided on a side of the filter seat (4) away from the air inlet (12), the interior of the air outlet (11) is connected to the interior of the filter tank (6); A drain valve assembly (7) is provided at the bottom of the filter tank (6), and a pressure sensor sealing ring (9) is provided inside the mounting hole (13) for sealing between the pressure sensor (2) and the filter seat (4).

2. A gas filter with a pressure 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 seat (4) and the filter tank (6).

3. A gas filter with a pressure sensor according to claim 1, characterized in that: The opening position of one end of the air outlet (11) close to the interior of the filter tank (6) is located outside the filter element (5).

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

5. A gas filter with a pressure sensor according to claim 1, characterized in that: The pressure sensing head of the pressure sensor (2) is located inside the filter element.

6. A gas filter with a pressure sensor according to claim 1, characterized in that: The pressure sensor (2) is connected to the outer side of the filter seat (4) via a mounting screw (3).

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