CN212309117U - Differential pressure alarm for bag-type dust collector - Google Patents
Differential pressure alarm for bag-type dust collector Download PDFInfo
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- CN212309117U CN212309117U CN202020527300.6U CN202020527300U CN212309117U CN 212309117 U CN212309117 U CN 212309117U CN 202020527300 U CN202020527300 U CN 202020527300U CN 212309117 U CN212309117 U CN 212309117U
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Abstract
The utility model relates to an alarm technical field discloses a pressure differential alarm for sack cleaner, include: first relay, second relay, first warning light, second warning light and pressure differential switch, wherein, first relay with the second relay all with the pressure differential switch electricity is connected, first relay still with the second warning light is connected, the second relay still with first warning light is connected, pressure differential switch is arranged in detecting the pressure differential between foul smell room and the air-purifying chamber in the sack cleaner and controls first relay with the second warning light and the second relay with break-make between the first warning light. The pressure difference alarm has the advantages that the blockage condition of the bag in the bag-type dust collector and the working state of the bag-type dust collector can be visually displayed, the safe and stable operation of the bag-type dust collector is ensured, and workers do not need to ascend to be observed at a close distance.
Description
Technical Field
The utility model relates to an alarm technical field especially relates to a pressure differential alarm for sack cleaner.
Background
The dust hazard of feed processing enterprises mainly comprises: the dust is deposited in the lung after being inhaled by a human body, and the respiratory function of the lung is influenced. In production plants, proportioning bins and other equipment, when flammable dust suspended in the air reaches a certain concentration, dust explosion can be caused once the flammable dust contacts a fire source or static electricity. The dust falls on the instrument, switch or equipment, which affects the service efficiency and service life of the electrical equipment and even causes accidents.
The bag-type dust collector is generally adopted in the feed processing industry, and the principle of the bag-type dust collector is that after dust-containing gas enters a turbid air chamber in a box body, a part of coarse dust particles and condensed dust groups directly fall under the action of inertia force to play a role of pre-collecting dust. When the foul air containing dust upwards passes through the cloth bag, the dust is blocked on the outer surface of the cloth bag, and the purified gas enters a gas purifying chamber at the upper part of the cloth bag and is collected to an air outlet pipe to be discharged. According to the setting, the pulse controller sends a back-blowing instruction at certain intervals to enable dust accumulated on the outer surface of the cloth bag to fall into the dust hopper, and then the exhaust valve is opened to enable the dust remover to recover filtering.
Although the dust remover has the back-blowing self-cleaning function, the dust accumulation on the outer surface of the cloth bag can still increase gradually in the working process of the dust remover, so that the cloth bag is blocked, and the dust removing effect is reduced. In order to ensure the dust removal effect, the blockage of the cloth bag must be monitored. At present, the monitoring method commonly used in the industry is that air ducts are arranged in a turbid air chamber and a clean air chamber, the air ducts are connected with a pressure difference meter, and whether a cloth bag is blocked or not is judged according to the magnitude of the pressure difference. Because the pressure difference meter is generally installed at the high position of the dust remover and is influenced by the height of the dust remover and the size of the dial plate of the pressure difference meter, the numerical value of the pressure difference meter installed at the high position is not beneficial to observation, and the blockage condition of a cloth bag of the dust remover can not be found in time, so that various risks caused by the fact that the dust remover can not work normally are caused.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing a pressure differential alarm for sack cleaner to solve among the prior art because the pressure differential table is generally installed at the high level of dust remover, receive the influence of dust remover height and pressure differential table dial plate size, install in the pressure differential table numerical value of high level and be unfavorable for observing, can not in time discover the obstructed condition of dust remover sack, often lead to because of the technical problem that the dust remover can not normally work and arouse various risks.
(II) technical scheme
In order to solve the technical problem, the utility model provides a pressure differential alarm for sack cleaner, include: first relay, second relay, first warning light, second warning light and pressure differential switch, wherein, first relay with the second relay all with the pressure differential switch electricity is connected, first relay still with the second warning light is connected, the second relay still with first warning light is connected, pressure differential switch is arranged in detecting the pressure differential between foul smell room and the air-purifying chamber in the sack cleaner and controls first relay with the second warning light and the second relay with break-make between the first warning light.
When the pressure difference between the turbid air chamber and the air purifying chamber is lower than a set value, the pressure difference switch is electrically connected with the first relay; when the pressure difference between the turbid air chamber and the air purifying chamber is higher than a set value, the pressure difference switch is electrically connected with the second relay.
The pressure difference alarm further comprises a power socket and a power switch, and the power socket is electrically connected with the power switch.
The pressure difference alarm further comprises an air circuit breaker, and the air circuit breaker is electrically connected with the power socket.
The pressure difference alarm further comprises an electronic buzzer, and the electronic buzzer is electrically connected with the second relay.
The power switch is respectively electrically connected with the electronic buzzer and the first prompting lamp and can control the on-off of the electronic buzzer and the first prompting lamp.
The pressure difference alarm further comprises a box body, a containing cavity is formed in the box body, and the first relay, the second relay, the air circuit breaker and the pressure difference switch are arranged in the containing cavity.
The first prompt lamp and the second prompt lamp are arranged in parallel.
The first prompting lamp comprises a first prompting lamp shell and a first lamp tube arranged in the first prompting lamp shell; the second prompting lamp comprises a second prompting lamp shell and a second lamp tube arranged in the second prompting lamp shell, and the first prompting lamp shell is communicated with the second prompting lamp shell.
The pressure difference alarm further comprises a gas purifying chamber plug and a turbid air chamber plug, the gas purifying chamber plug is connected with the low-value port of the pressure difference switch, and the turbid air chamber plug is connected with the high-value port of the pressure difference switch.
(III) advantageous effects
The utility model provides a pressure differential alarm for sack cleaner compares with prior art, has following advantage:
after the dust-containing gas enters a turbid gas chamber in the bag-type dust collector, a part of coarse dust particles and condensed dust clusters, directly falls under the action of inertia force, when the turbid air containing dust upwards passes through the cloth bag, the dust is blocked on the outer surface of the cloth bag, a gas purifying chamber in the cloth bag dust remover is connected with a low value port of a pressure difference switch through a pipeline, a turbid air chamber in the cloth bag dust remover is connected with a high value port in the pressure difference switch through a pipeline, if the pressure difference between the turbid air chamber and the gas purifying chamber is more than or equal to a set value, the differential pressure switch sends a signal to the second relay, the second relay is closed, the first relay is disconnected, so that the second relay controls the first prompting lamp to be lightened, when the worker finds that the first prompt lamp is lightened, the blockage of the cloth bag in the cloth bag dust remover is indicated, the power switch described below can be turned off to manually clean the dust on the outer surface of the bag in the bag-type dust collector. If the pressure difference between the turbid air chamber and the air purifying chamber is smaller than a set value, the pressure difference switch sends a signal to the first relay, the first relay is closed, the second relay is disconnected, and the first relay controls the second prompt lamp to be turned on. It can be seen that, the utility model discloses a pressure differential alarm can show the sack jam condition in the sack cleaner and the operating condition of sack cleaner directly perceivedly, ensures the operation of sack cleaner safety and stability, does not need the staff to ascend a height closely to observe.
Drawings
Fig. 1 is a schematic view of the overall structure of a differential pressure alarm for a bag-type dust collector according to an embodiment of the present invention.
Reference numerals:
1: a first relay; 2: a second relay; 3: a first warning light; 4: a second warning light; 5: an electronic buzzer; 6: a differential pressure switch; 7: a gas purification chamber plug; 8: a foul air chamber plug; 9: a power socket; 10: a power switch; 11: an air circuit breaker; 12: and (4) a box body.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1, the pressure difference alarm is schematically shown to comprise a first relay 1, a second relay 2, a first indicator light 3, a second indicator light 4 and a pressure difference switch 6.
In the embodiment of the application, the first relay 1 and the second relay 2 are both electrically connected with the pressure difference switch 6, the first relay 1 is further connected with the second prompt lamp 4, the second relay 2 is further connected with the first prompt lamp 3, and the pressure difference switch 6 is used for detecting the pressure difference between the turbid air chamber and the air purifying chamber in the bag-type dust remover and controlling the on-off between the first relay 1 and the second prompt lamp 4 and between the second relay 2 and the first prompt lamp 3. Specifically, after the dust-containing gas enters the turbid air chamber in the bag-type dust collector, a part of coarse dust particles and condensed dust particles directly fall under the action of inertia force, when the turbid air containing dust upwards passes through the bag, the dust can be blocked on the outer surface of the bag, the purified air chamber in the bag-type dust collector is connected with the low value port of the differential pressure switch 6 through a pipeline, the turbid air chamber in the bag-type dust collector is connected with the high value port in the differential pressure switch 6 through a pipeline, if the differential pressure between the turbid air chamber (not shown in the figure) and the purified air chamber (not shown in the figure) is greater than or equal to a set value, the differential pressure switch 6 sends a signal to the second relay 2, the second relay 2 is attracted, the first relay 1 is disconnected, so that the second relay 2 controls the first prompting lamp 3 to be turned on, when a worker finds that the first prompting lamp 3 is turned on, the bag in the bag-type dust collector is blocked, the power switch 10 described below can be turned off and the dust on the outer surface of the bag in the bag-type dust collector can be manually cleaned.
If the pressure difference between the turbid air chamber and the air purifying chamber is smaller than a set value, the pressure difference switch 6 sends a signal to the first relay 1, the first relay 1 is closed, and the second relay 2 is disconnected, so that the first relay 1 controls the second prompt lamp 4 to be turned on. It can be seen that, the utility model discloses a pressure differential alarm can show the sack jam condition in the sack cleaner and the operating condition of sack cleaner directly perceivedly, ensures the operation of sack cleaner safety and stability, does not need the staff to ascend a height closely to observe.
It should be noted that the so-called "set point" may range in size from 500 pa to 2500 pa.
The first prompt lamp 3 can be a red light, and when the red light is on, the first prompt lamp indicates that a bag in the bag-type dust collector is blocked; the second prompt lamp 4 can be a green lamp, when the green lamp is on, the bag in the bag-type dust collector is indicated not to be blocked, and the normal work of the current state can be continuously kept.
In a preferred embodiment of the present application, as shown in fig. 1, the differential pressure switch 6 is electrically connected to the first relay 1 when the differential pressure between the dirty air chamber and the clean air chamber is below a set value.
When the pressure difference between the turbid air chamber and the clean air chamber is higher than a set value, the pressure difference switch 6 is electrically connected with the second relay 2.
In a preferred embodiment of the present application, as shown in fig. 1, the differential pressure alarm further comprises a power socket 9 and a power switch 10, wherein the power socket 9 is electrically connected with the power switch 10. Specifically, if the pressure difference between the turbid air chamber and the air purifying chamber is greater than or equal to a set value, the pressure difference switch 6 sends a signal to the second relay 2, the second relay 2 is attracted, the first relay 1 is disconnected, the second relay 2 controls the first prompt lamp 3 to be turned on, at the moment, a cloth bag in the cloth bag dust remover is prompted to be blocked, the power switch 10 needs to be turned off, and a worker manually clears away dust on the cloth bag.
In a preferred embodiment of the present application, as shown in fig. 1, the differential pressure alarm further comprises an air circuit breaker 11, the air circuit breaker 11 being electrically connected to the power outlet 9. It will be appreciated that the air circuit breaker 11 is open and the power outlet 9 is not on or off.
In a preferred embodiment of the present application, the differential pressure alarm further comprises an electronic buzzer 5, the electronic buzzer 5 being electrically connected to the second relay 2.
In a specific embodiment of the present application, the electronic buzzer 5 may be a buzzer.
In a preferred embodiment of the present application, the power switch 10 is electrically connected to the electronic buzzer 5 and the first warning light 3 respectively and can control the on and off of the electronic buzzer 5 and the first warning light 3. Specifically, when the pressure difference between the turbid air chamber and the air purifying chamber is larger than or equal to a set value, the pressure difference switch 6 sends a signal to the second relay 2, the second relay 2 is attracted, the first relay 1 is disconnected, the second relay 2 controls the first prompt lamp 3 to be turned on, at the moment, the bag in the bag-type dust remover is prompted to be blocked, the power switch 10 needs to be turned off, and a worker manually clears away dust on the bag. At the moment, the second relay 2 can also control the electronic buzzer 5 to work and send out alarming sound, and therefore the pressure difference alarm has the function of sound and light alarming and can well prompt workers to accurately judge the blocking condition of the cloth bag.
In a preferred embodiment of the present application, the differential pressure alarm further includes a case 12, and a housing chamber (not shown in the drawings) is configured in the case 12, and the first relay 1, the second relay 2, the air circuit breaker 11, and the differential pressure switch 6 are disposed in the housing chamber. Thus, the box body 12 can protect the internal devices thereof well, and has the advantages of modularization and integration.
In a preferred embodiment of the present application, as shown in fig. 1, the first indicator light 3 and the second indicator light 4 are arranged in parallel. Therefore, the occupied space can be saved, and the installation and the disassembly are convenient.
In a preferred embodiment of the present application, the first notification lamp 3 includes a first notification lamp housing (not shown) and a first lamp tube (not shown) disposed within the first notification lamp housing.
The second indicator light 4 includes a second indicator light housing (not shown) and a second light tube disposed in the second indicator light housing (not shown), and the first indicator light housing is communicated with the second indicator light housing. It should be noted that the first indicator light shell may be red, the second indicator light shell may be green, and both the first lamp tube and the second lamp tube may be white.
In a preferred embodiment of the present application, as shown in fig. 1, the differential pressure alarm further comprises a clean air chamber plug 7 and a dirty air chamber plug 8, the clean air chamber plug 7 being connected to the low value port of the differential pressure switch 6, and the dirty air chamber plug 8 being connected to the high value port of the differential pressure switch 6. It should be noted that the arrangement of the air purifying chamber plug 7 facilitates the extension of the pipeline connected between the air purifying chamber and the differential pressure switch 6, and the arrangement of the foul air chamber plug 8 facilitates the extension of the pipeline connected between the foul air chamber and the differential pressure switch 6.
To sum up, after the dust-containing gas enters the turbid air chamber in the bag-type dust collector, a part of coarse dust particles and condensed dust particles directly fall under the action of inertia force, when the turbid air containing dust upwards passes through the bag, the dust is blocked on the outer surface of the bag, the clean air chamber in the bag-type dust collector is connected with the low value port of the differential pressure switch 6 through a pipeline, the turbid air chamber in the bag-type dust collector is connected with the high value port in the differential pressure switch 6 through a pipeline, if the differential pressure between the turbid air chamber (not shown in the figure) and the clean air chamber (not shown in the figure) is greater than or equal to a set value, the differential pressure switch 6 sends a signal to the second relay 2, the second relay 2 is attracted, the first relay 1 is disconnected, so that the second relay 2 controls the first prompting lamp 3 to be turned on, when a worker finds that the first prompting lamp 3 is turned on, the bag in the bag-type dust collector is blocked, the power switch 10 described below can be turned off and the dust on the outer surface of the bag in the bag-type dust collector can be manually cleaned.
If the pressure difference between the turbid air chamber and the air purifying chamber is smaller than a set value, the pressure difference switch 6 sends a signal to the first relay 1, the first relay 1 is closed, and the second relay 2 is disconnected, so that the first relay 1 controls the second prompt lamp 4 to be turned on. It can be seen that, the utility model discloses a pressure differential alarm can show the sack jam condition in the sack cleaner and the operating condition of sack cleaner directly perceivedly, ensures the operation of sack cleaner safety and stability, does not need the staff to ascend a height closely to observe.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pressure differential alarm for a bag-type dust collector, comprising:
first relay, second relay, first warning light, second warning light and pressure differential switch, wherein, first relay with the second relay all with the pressure differential switch electricity is connected, first relay still with the second warning light is connected, the second relay still with first warning light is connected, pressure differential switch is arranged in detecting the pressure differential between foul smell room and the air-purifying chamber in the sack cleaner and controls first relay with the second warning light and the second relay with break-make between the first warning light.
2. The differential pressure alarm for the bag-type dust collector according to claim 1, wherein when the differential pressure between the turbid air chamber and the clean air chamber is lower than a set value, the differential pressure switch is electrically connected with the first relay;
when the pressure difference between the turbid air chamber and the air purifying chamber is higher than a set value, the pressure difference switch is electrically connected with the second relay.
3. The pressure difference alarm for the bag-type dust collector according to claim 1, further comprising a power socket and a power switch, wherein the power socket is electrically connected with the power switch.
4. The differential pressure alarm for a bag-type dust collector of claim 3, further comprising an air circuit breaker electrically connected to the power outlet.
5. The differential pressure alarm for the bag-type dust collector of claim 4, further comprising an electronic buzzer, wherein the electronic buzzer is electrically connected with the second relay.
6. The differential pressure alarm for the bag-type dust collector of claim 5, wherein the power switch is electrically connected with the electronic buzzer and the first prompting lamp respectively and can control the on-off of the electronic buzzer and the first prompting lamp.
7. The differential pressure alarm for the bag-type dust collector of claim 5, further comprising a box body, wherein a containing cavity is configured in the box body, and the first relay, the second relay, the air circuit breaker and the differential pressure switch are all arranged in the containing cavity.
8. The differential pressure alarm for the bag-type dust collector of claim 1, wherein the first indicator light and the second indicator light are arranged in parallel.
9. The differential pressure alarm for the bag-type dust collector of claim 8, wherein the first prompting lamp comprises a first prompting lamp housing and a first lamp tube arranged in the first prompting lamp housing;
the second prompting lamp comprises a second prompting lamp shell and a second lamp tube arranged in the second prompting lamp shell, and the first prompting lamp shell is communicated with the second prompting lamp shell.
10. The differential pressure alarm for the bag-type dust collector of claim 1, further comprising a gas-purifying chamber plug and a foul gas chamber plug, wherein the gas-purifying chamber plug is connected with the low value port of the differential pressure switch, and the foul gas chamber plug is connected with the high value port of the differential pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020527300.6U CN212309117U (en) | 2020-04-10 | 2020-04-10 | Differential pressure alarm for bag-type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020527300.6U CN212309117U (en) | 2020-04-10 | 2020-04-10 | Differential pressure alarm for bag-type dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212309117U true CN212309117U (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020527300.6U Active CN212309117U (en) | 2020-04-10 | 2020-04-10 | Differential pressure alarm for bag-type dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212309117U (en) |
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2020
- 2020-04-10 CN CN202020527300.6U patent/CN212309117U/en active Active
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