Filter differential pressure blocking alarm device

Abstract

The utility model relates to the field of filters, in particular to a filter differential pressure blocking alarm device which comprises a main shell, a containing cavity, a filter element, a first water pressure sensor and a second water pressure sensor are arranged in the main shell, one end of the containing cavity is an outlet, and the other end of the containing cavity is an inlet. The first water pressure sensor is fixedly arranged at the end, close to the outlet, of the containing cavity, the second water pressure sensor is fixedly arranged at the end, close to the inlet, of the containing cavity, and a baffle is fixedly arranged between the second water pressure sensor and the inlet. According to the utility model, through the arrangement of the baffle plate, direct impact of water flow can be blocked through the baffle plate, and when the water flow is reduced, the water quantity at the first water pressure sensor is kept, so that the water pressure value measured by the first water pressure sensor is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter field especially relates to a filter pressure difference blockage alarm device. BACKGROUND

[0002] Filter is indispensable on the pipeline of medium conveying device, usually installs in pressure reducing valve, pressure relief valve, positioning valve, filter other equipment's import equipment, filter is composed by cylinder, stainless steel filter screen, blowdown part, transmission and electrical control part. In order to ensure that filter filter core can be known in time when blocking, the existing filter often sets up alarm device.

[0003] At present, the existing filter alarm device generally adopts water pressure difference to realize alarm, but due to the change of water pressure in the pipeline, it is easy to produce false alarm. Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. SUMMARY

[0004] The utility model discloses a kind of filter pressure difference blockage alarm devices, and the utility model is realized by the following technical solutions:

[0005] A kind of filter pressure difference blockage alarm device, including main casing, the main casing inside is provided with accommodating cavity, filter core, first water pressure sensor and second water pressure sensor, one end of the accommodating cavity is outlet, the other end is inlet, first limit ring and second limit ring are also provided in the accommodating cavity, the first limit ring is fixedly connected with the main casing, the second limit ring is detachably fixedly connected with the main casing, and the second limit ring is arranged between the first limit ring and the outlet, the filter core is located between the first limit ring and second limit ring, the first water pressure sensor is fixedly arranged at one end of the accommodating cavity close to the outlet, the second water pressure sensor is arranged at one end of the accommodating cavity close to the inlet, and the second water pressure sensor is fixedly provided with baffle between the second water pressure sensor and the inlet.

[0006] In the above technical scheme: the main casing is used for setting accommodating cavity, and the accommodating cavity is used for setting the remaining components;Filter core is used to realize filtration;First water pressure sensor is used to measure the water pressure of inlet end;Second water pressure sensor is used to measure the water pressure of outlet end;Inlet is used for water to enter, and outlet is used for water to flow out;First limit ring and second limit ring are used to limit the position of filter core;Baffle is used to make the water pressure value of first water pressure sensor more stable, avoid unstable water pressure caused by water flow intermittent impact.

[0007] The utility model further provides that: the height of the baffle does not exceed half of the height of the accommodating cavity.

[0008] In the technical scheme, the height of the baffle is not more than half of the height of the accommodating cavity, so as to avoid affecting the water flow.

[0009] The utility model discloses further provide that: first water pressure sensor and second water pressure sensor all fixedly arranged at the bottom of accommodating cavity.

[0010] In the technical scheme, the first water pressure sensor and the second water pressure sensor are fixed at the bottom of the accommodating cavity, so that they can be immersed in water, thereby ensuring that the water pressure can be measured.

[0011] The utility model discloses further provide that: still fixedly arranged with third water pressure sensor in the accommodating cavity, third water pressure sensor sets up between the baffle with the entrance, and third water pressure sensor sets up at the top of accommodating cavity.

[0012] In the technical scheme, the third water pressure sensor is used to measure the water pressure at the top of the accommodating cavity at the entrance, so that whether the third water pressure sensor can measure stable water pressure can further determine whether the water pressure is unstable due to blockage or water flow interruption.

[0013] The utility model discloses further provide that: the distance between first limit ring and second limit ring is consistent with the height of filter core.

[0014] In the technical scheme, the distance between the first limit ring and the second limit ring is consistent with the height of the filter core, thereby ensuring that the filter core does not shake.

[0015] The utility model discloses a filter pressure difference block alarm device, compared with prior art:

[0016] 1. The utility model discloses through the setting of baffle's setting, make can through baffle and block water flow direct impact, and when water flow flow is reduced, keep the water amount at first water pressure sensor place, so that the water pressure value that first water pressure sensor measured is more stable;

[0017] 2. The utility model discloses still through the setting of third water pressure sensor's setting, make can through third water pressure sensor measured value and second water pressure sensor measured value compare, thereby further judge whether the filter core is blocked or the pressure difference caused by water flow variation. DRAWINGS

[0018] Figure 1 The utility model discloses a schematic view.

[0019] The corresponding component names represented by the numbers and letters in the figure are as follows: 10-main housing; 101-accommodation cavity; 102-outlet; 103-inlet; 104-first limiting ring; 105-second limiting ring; 106-baffle; 20-filter element; 30-first water pressure sensor; 40-second water pressure sensor; 50-third water pressure sensor. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below, and the embodiments are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0021] As Figure 1 shown in the utility model discloses a kind of filter differential pressure block alarm device, including main housing 10, the accommodation cavity 101, filter element 20, first water pressure sensor 30 and second water pressure sensor 40 are arranged in the main housing 10, one end of the accommodation cavity 101 is outlet 102, the other end is inlet 103, the first limiting ring 104 and the second limiting ring 105 are also provided in the accommodation cavity 101, the first limiting ring 104 is fixedly connected with the main housing 10, the second limiting ring 105 is detachably fixedly connected with the main housing 10, and the second limiting ring 105 is arranged between the first limiting ring 104 and the outlet 102, the filter element 20 is located between the first limiting ring 104 and the second limiting ring 105, the first water pressure sensor 30 is fixedly arranged at one end of the accommodation cavity 101 close to the outlet 102, the second water pressure sensor 40 is arranged at one end of the accommodation cavity 101 close to the inlet 103, and the second water pressure sensor 40 is fixedly arranged with the baffle 106 between the second water pressure sensor 40 and the inlet 103. Wherein, the main housing 10 is cylindrical, and the accommodation cavity 101 is cylindrical;It also includes control circuit, the control circuit is electrically connected with first water pressure sensor 30 and second water pressure sensor 40, for recording and comparing the water pressure measured by first water pressure sensor 30 and the water pressure measured by second water pressure sensor 40;Buzzer is included on control circuit, for issuing alarm.

[0022] As Figure 1 shown in the utility model discloses a kind of filter differential pressure block alarm device, the height of the baffle 106 does not exceed half of the height of the accommodation cavity 101. Wherein, preferably, the shape of the baffle 106 is adapted to the shape of the accommodation cavity 101, so that a certain amount of water can be stored between the baffle 106 and the first limiting ring 104.

[0023] As Figure 1As shown in the filter differential pressure block alarm device, the first water pressure sensor 30 and the second water pressure sensor 40 are fixedly arranged at the bottom of the accommodating cavity 101.

[0024] As Figure 1 shown, the utility model discloses a kind of filter differential pressure block alarm device, third water pressure sensor 50 is also fixedly arranged in the accommodating cavity 101, the third water pressure sensor 50 is arranged between the baffle 106 and the inlet 103, and the third water pressure sensor 50 is arranged at the top of the accommodating cavity 101.Third water pressure sensor 50 is also electrically connected with control circuit.

[0025] As Figure 1 shown, the utility model discloses a kind of filter differential pressure block alarm device, the distance between the first limit ring 104 and the second limit ring 105 is consistent with the height of the filter core 20. Among them,

[0026] The working principle of the utility model is:

[0027] a) water flow enters from the inlet of main casing;

[0028] b) impact baffle first, remove impact force;

[0029] c) then gradually immerse second water pressure sensor;

[0030] d) after water quantity increases, reach the position of first water pressure sensor after filtering through filter core;

[0031] e) if the water pressure value measured by second water pressure sensor and the set reference value are greatly different;

[0032] f) compare the water pressure value measured by first water pressure sensor and the water pressure measured by second water pressure sensor,

[0033] g) if both are close, not blocked;

[0034] h) when there is third water pressure sensor, whether the value of third water pressure sensor and reference value are close can be seen to further judge.

[0035] It is worth noting that the first water pressure sensor, second water pressure sensor and third water pressure sensor are all prior art, and those skilled in the art can choose according to actual situation.

[0036] The above merely illustrates a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0037] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A filter differential pressure blockage alarm device, characterized in that: The system includes a main housing (10), inside which are disposed a receiving cavity (101), a filter element (20), a first water pressure sensor (30), and a second water pressure sensor (40). One end of the receiving cavity (101) is an outlet (102), and the other end is an inlet (103). A first limiting ring (104) and a second limiting ring (105) are also disposed within the receiving cavity (101). The first limiting ring (104) is fixedly connected to the main housing (10), and the second limiting ring (105) is detachably fixedly connected to the main housing (10). The filter element (20) is located between the first limiting ring (104) and the outlet (102), and between the first limiting ring (104) and the second limiting ring (105). The first water pressure sensor (30) is fixedly installed at one end of the accommodating cavity (101) near the outlet (102). The second water pressure sensor (40) is fixedly installed at one end of the accommodating cavity (101) near the inlet (103), and a baffle (106) is fixedly installed between the second water pressure sensor (40) and the inlet (103).

2. The filter differential pressure blockage alarm device according to claim 1, characterized in that: The height of the baffle (106) is no more than half the height of the accommodating cavity (101).

3. The filter differential pressure blockage alarm device according to claim 2, characterized in that: The first water pressure sensor (30) and the second water pressure sensor (40) are both fixedly installed at the bottom of the accommodating cavity (101).

4. The filter differential pressure blockage alarm device according to claim 3, characterized in that: A third water pressure sensor (50) is also fixedly installed inside the accommodating cavity (101). The third water pressure sensor (50) is located between the baffle (106) and the inlet (103), and the third water pressure sensor (50) is located at the top of the accommodating cavity (101).

5. A filter differential pressure blockage alarm device according to claim 3 or 4, characterized in that: The distance between the first limiting ring (104) and the second limiting ring (105) is consistent with the height of the filter element (20).

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