Filter with differential pressure detecting and reminding functions

Abstract

The utility model discloses a filter with a pressure difference detecting and reminding function, which comprises a filter seat and a filter shell, a filter component is arranged in the filter shell, a radiator is sleeved outside the filter shell, the filter shell is connected with the filter seat through a filter element seat, and the filter seat is provided with a pressure difference detecting and reminding device. The flow channel cavity of the filter seat is also provided with a differential pressure indicator; the filter disclosed by the utility model is provided with the pressure difference signaling device, when the system pressure difference is increased to a certain degree, an internal mechanism of the pressure difference signaling device is triggered, and a display screen of the pressure difference signaling device is changed from green to red, so that a prompt that a filter element needs to be replaced is sent to an operator; the filter shell and the filter base are connected in a threaded fit mode, the cost of replacing the filter element is effectively reduced, the structure is simple, and operation is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field, concretely relates to a filter with pressure difference detection reminding function. BACKGROUND

[0002] With the rapid development of modern engine technology and the increasingly fierce market competition, the performance requirement of filter is higher and higher, and then promotes filter product to accelerate the innovation and improvement of production technology and the optimization of process, improves product quality, and also further reduces production cost.

[0003] At present, in most hydraulic systems, the filter element is gradually blocked due to intercepting pollutants and impurities. When hydraulic oil passes through the filter, if there are many impurities in the filter, it will cause the pressure loss of the fluid passing through the filter to increase. This pressure loss is the pressure difference. When the pressure difference increases to a certain extent, the fluid forces the bypass valve in the filter assembly to open, causing the filter itself to fail, and the fluid directly flows to the system through the bypass valve without being filtered, thereby temporarily ensuring the normal operation of the system. In order to detect the failure of the filter or the blockage of the filter element in time, and transmit the signal to the display device, the operator is reminded to replace the filter element. SUMMARY

[0004] The utility model aims at providing a kind of filter with pressure difference detection reminding function, the medium pressure of the filter assembly two sides is measured in real time by being set pressure difference transmitter, and visual display reminds operator.

[0005] The technical scheme adopted by the utility model is as follows: a kind of filter with pressure difference detection reminding function, including filter seat and filter shell, filter assembly is equipped in the filter shell, radiator is further sleeved on the outside of the filter shell, the filter shell is connected with the filter seat of filter core seat installation, the flow channel cavity of the filter seat is also installed with pressure difference transmitter.

[0006] As a further setting of the above scheme, one end of the filter core seat is connected to the filter assembly, the other end extends out of the filter shell and is provided with a threaded portion, and the filter seat is provided with a mounting portion threadedly connected with the threaded portion.

[0007] As a further setting of the above scheme, one end of the probe head of the pressure difference transmitter is connected to the liquid inlet of the filter seat, and the other end is connected to the liquid outlet filtered from the filter assembly.

[0008] As a further setting of the above scheme, the pressure difference transmitter is further provided with an LED lamp bead, and the LED lamp bead is used for red-green color switching to prompt the pressure difference change.

[0009] As a further setting of the above scheme, the radiator is made of stainless steel material and is fixedly connected with the outer side of the filter shell.

[0010] Beneficial effects: the filter of the utility model, through setting up the pressure difference transmitter in the filter seat, utilize the pressure difference transmitter to carry out pressure difference measurement to medium pressure, when the system pressure difference increases to a certain degree, greater than the preset threshold value in the pressure difference transmitter, trigger the mechanism in the pressure difference transmitter, the pressure difference transmitter display screen changes from green to red, send the reminder to the operator that the filter core needs to be replaced, in addition, the filter shell and the filter seat of the embodiment are screw thread cooperation connection installation, through the detachable connection of the filter seat one end and the filter shell, effectively reduce the cost of replacing the filter core, simple structure, easy operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is filter structure schematic diagram of the utility model.

[0012] Figure 2 It is filter internal structure schematic diagram of the embodiment.

[0013] Figure 3 It is filter seat structure schematic diagram of the embodiment.

[0014] Figure 4 It is radiator structure schematic diagram of the embodiment.

[0015] Figure 5 It is filter assembly structure schematic diagram of the embodiment.

[0016] Fig. 1, filter seat 11, installation part 2, filter shell 3, pressure difference transmitter 4, filter assembly 5, radiator 7, filter core seat 71, threaded portion 8, flow channel cavity. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below combining with the drawings and specific embodiments.It should be explained that the embodiments of the application and the features in the embodiments can be combined mutually without mutual conflict.

[0018] As Figures 1-5 Shown in the utility model discloses a kind of filter with pressure difference detection reminding function, including filter seat 1 and filter shell 2, the filter shell 2 is equipped with filter assembly 4, the filter shell 2 is also equipped with radiator 5 outside, radiator 5 is sleeved on filter shell 2, and play the role of heat dissipation, the filter shell 2 is equipped with filter core seat 7 installation connection with filter seat 1, the flow channel cavity 8 of filter seat 1 is also equipped with pressure difference transmitter 3, the pressure difference transmitter 3 of the embodiment of the utility model uses existing technology's medium pressure sensor, and the pressure difference transmitter 3 of the embodiment of the utility model is connected with visual component LED lamp bead, which can intuitively prompt staff.

[0019] As a further arrangement of the above-mentioned scheme, the filter core seat 7 is connected to the filter assembly 4 at one end and extends out of the filter housing 2 to be provided with a threaded portion 71, and the filter seat 1 is provided with a mounting portion 11 threadedly connected with the threaded portion 71, and the filter assembly 4 of the embodiment is mounted and fixed in the filter housing 2 and is fixed by threadedly connecting the threaded portion 71 on the filter core seat 7 of the fixed filter assembly 4 and the mounting portion 11 of the filter seat 1.

[0020] As a further arrangement of the above-mentioned scheme, the probe head of the differential pressure transmitter 3 is connected to the liquid inlet of the filter seat 1 at one end and connected to the liquid outlet filtered from the filter assembly 4 at the other end, and the differential pressure transmitter 3 is further provided with an LED lamp bead, which is used for switching between red and green to prompt the differential pressure change.

[0021] As a further arrangement of the above-mentioned scheme, the heat sink 5 is made of stainless steel and fixedly connected to the outside of the filter housing 2.

[0022] The filter assembly for detecting differential pressure of the embodiment mainly comprises a filter seat 1, a filter assembly 4, a filter housing 2, and a differential pressure transmitter 3, and the filter seat 1 is provided with a flow channel cavity 8, at least one group of oil inlet pipes and oil outlet pipes are connected to the flow channel cavity 8, the differential pressure transmitter 3 is mounted and fixed to the outside of the filter seat 1 and connected to the oil inlet pipes and oil outlet pipes of the flow channel cavity 8, the differential pressure transmitter 3 monitors the oil inlet pipes and oil outlet pipes on both sides of the filter assembly 4 to measure the medium pressure before and after the filter assembly 4, one end of the filter seat 1 is fixedly connected with an electronic pump, and the other end is detachably connected with the filter housing 2.

[0023] According to the working principle of the differential pressure transmitter 3, when the filter core of the filter assembly 4 is blocked to cause the differential pressure between the two sides of the system to increase to a certain extent, when the differential pressure is greater than the preset threshold value in the differential pressure transmitter 3, the mechanism in the differential pressure transmitter 3 is triggered, the LED lamp bead on the differential pressure transmitter 3 changes from green to red, and the operator is reminded that the filter core needs to be replaced.

[0024] After the differential pressure transmitter 3 alarms, the operator quickly obtains the prompt, and then the filter seat 1 and the filter housing 2 with the filter assembly 4 fixedly arranged inside can be quickly detached through the threaded portion 71 and the mounting portion 11 for replacement, which effectively reduces the cost of replacing the filter core and has a simple structure and easy operation.

[0025] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the present application scheme and equivalent technology, the present application also intends to include these modifications and variations.

Claims

1. A filter with differential pressure detection and alert function, comprising a filter base (1) and a filter housing (2), characterized in that: The filter housing (2) is provided with a filter assembly (4), and a heat sink (5) is also provided on the outside of the filter housing (2). The filter housing (2) and the filter base (1) are connected by a filter element seat (7). A differential pressure transmitter (3) is also installed on the flow channel cavity (8) of the filter base (1).

2. The filter with differential pressure detection and reminder function according to claim 1, characterized in that: The filter element holder (7) is connected to the filter assembly (4) at one end and extends out of the filter housing (2) at the other end and is provided with a threaded part (71). The filter holder (1) is provided with a mounting part (11) that is threadedly connected to the threaded part (71).

3. A filter with differential pressure detection and alert function according to claim 1, characterized in that: The probe of the differential pressure transmitter (3) is connected at one end to the liquid inlet of the filter seat (1) and at the other end to the liquid outlet after being filtered by the filter assembly (4).

4. A filter with differential pressure detection and alert function according to claim 3, characterized in that: The differential pressure transmitter (3) is also equipped with LED beads, which are used to indicate the change in differential pressure by switching between red and green.

5. A filter with differential pressure detection and alert function according to claim 1, characterized in that: The radiator (5) is made of stainless steel and is fixedly connected to the outside of the filter housing (2).

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