Centralized control type differential pressure real-time monitoring device for purification plant

Abstract

The utility model provides a centralized control type differential pressure real-time monitoring device for a purification plant. The centralized control type differential pressure real-time monitoring device comprises a first differential pressure gauge which is communicated with a first function room and a second function room through connecting pipelines; the second differential pressure gauge is communicated with the third function room and the fourth function room through a connecting pipeline, the third differential pressure gauge enables a high-pressure port to be communicated with the fifth function room through a centralized control pipeline, and a low-pressure port to be communicated with atmospheric pressure. The pressure difference between the third function chamber and the fourth function chamber is calculated through the second differential pressure gauge, the absolute pressure value of the fifth function chamber and the atmospheric pressure is calculated through the third differential pressure gauge, the pressure difference between the second function chamber and the fifth function chamber is calculated through comparison with the first differential pressure gauge, and the pressure difference between the fourth function chamber and the fifth function chamber is calculated through comparison with the second differential pressure gauge. The resource loss is reduced, and errors can be reduced to a certain extent. And moreover, the pressure difference condition among all purification functions can be managed and controlled in a centralized manner in real time, abnormity can be found in time, and air pressure parameters can be quickly adjusted.

Description

Technical Field

[0001] The utility model relates to a centralized control type pressure difference real-time monitoring device for a purification plant, which is applied to the field of pressure difference monitoring. Background Art

[0002] Clean workshop, also known as dust-free workshop or clean room, refers to a specially designed room that removes pollutants such as particles, harmful air, and bacteria from the air within a certain space, and controls the indoor temperature, cleanliness, indoor pressure, air flow speed and distribution, noise, vibration, lighting, and static electricity within a certain required range. In other words, no matter how the external air conditions change, the room can maintain the cleanliness, temperature, humidity, pressure and other properties originally set.

[0003] The pressure differential monitoring of the clean room is an important link to ensure that the clean room environment control meets the standards. The purpose of the pressure differential measurement is to verify the ability to maintain the specified pressure differential between the purification facility and the surrounding environment, and between the spaces within the facility. The existing pressure differential monitoring of the clean room is to directly connect the high and low pipes of the pressure gauge to the two rooms to measure the pressure difference between the two in real time. This method of measuring the pressure differential requires a pressure differential gauge for every two functional rooms, and the pressure differential gauge is not equipped with a device that can reflect the error, so the error of the pressure differential gauge cannot be determined, and the real-time monitoring result is not accurate enough. Therefore, in response to the above problems, the utility model designs a centralized control pressure differential real-time monitoring device for the clean room. Utility Model Content

[0004] The utility model provides a centralized control type pressure difference real-time monitoring device for a purification plant, which can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A centralized control pressure difference real-time monitoring device for a purification plant, comprising:

[0007] A first differential pressure gauge, with a high-pressure port connected to the first functional room and a low-pressure port connected to the second functional room through a connecting pipeline;

[0008] The second differential pressure gauge has a high pressure port connected to the third functional room and a low pressure port connected to the fourth functional room through a connecting pipeline;

[0009] The third differential pressure gauge has a high pressure port connected to the fifth functional room through a centralized control pipeline, and a low pressure port connected to atmospheric pressure;

[0010] The pressure difference between the first and second function rooms is calculated by the first differential pressure gauge, the pressure difference between the third and fourth function rooms is calculated by the second differential pressure gauge, the absolute pressure value of the fifth function room and atmospheric pressure is calculated by the third differential pressure gauge, and then the pressure difference between the second and fifth function rooms is calculated by comparing with the first differential pressure gauge, and then the pressure difference between the fourth and fifth function rooms is calculated by comparing with the second differential pressure gauge.

[0011] As a further improvement, it further comprises a fourth differential pressure gauge, the high pressure port of which is connected to the fourth functional room through a connecting pipeline, and the low pressure port of which is connected to the sixth functional room;

[0012] The fifth differential pressure gauge has a high pressure port connected to the seventh functional room and a low pressure port connected to the eighth functional room through a connecting pipeline;

[0013] The sixth differential pressure gauge has a high pressure port connected to the sixth functional room and a low pressure port connected to the ninth functional room through a connecting pipeline;

[0014] The seventh differential pressure gauge has a high pressure port connected to the eighth functional room and a low pressure port connected to the tenth functional room through a connecting pipeline;

[0015] An eighth differential pressure gauge, the high pressure port of which is connected to the eleventh functional room through a connecting pipeline, and the low pressure port of which is connected to the twelfth functional room;

[0016] The ninth differential pressure gauge has a high-pressure port connected to the thirteenth functional room and a low-pressure port connected to the fourteenth functional room through a connecting pipeline.

[0017] As a further improvement, the centralized control pipeline includes two sections of right-angle elbows and a connecting pipe, the two ends of the connecting pipe are respectively connected to one end of the two sections of the right-angle elbows, one end of one section of the right-angle elbow away from the connecting pipe is connected to the air vent direct pipe fitting, and the other end of the right-angle elbow away from the connecting pipe is connected to the pressure measuring port.

[0018] As a further improvement, the turning radius of the two sections of the right-angle elbows is 1.1 to 1.5 times.

[0019] As a further improvement, the centralized control pipeline is connected to the ceiling of the functional room through an air duct direct pipe.

[0020] As a further improvement, a locking nut is provided at the connection between the connecting pipe and the air duct direct pipe fitting for fixing.

[0021] The beneficial effects of the utility model are:

[0022] (1) The pressure difference between the first function room and the second function room is calculated by the first pressure differential meter, the pressure difference between the third function room and the fourth function room is calculated by the second pressure differential meter, and the absolute pressure value between the fifth function room and the atmospheric pressure is calculated by the third pressure differential meter, and then the pressure difference between the second function room and the fifth function room is calculated by comparing with the first pressure differential meter, and then the pressure difference between the fourth function room and the fifth function room is calculated by comparing with the second pressure differential meter. This can not only reduce the number of pressure differential meters and reduce resource loss, but also reduce errors to a certain extent by calculating the absolute pressure value and then comparing and calculating with other pressure differential meters. The pressure difference between all purification functions can be centrally controlled in real time, abnormalities can be discovered in time, and air pressure parameters can be adjusted quickly. Moreover, the purification air resources can be better allocated according to the pressure difference parameters between each function in a more systematic manner, and the purification effect is more reasonable.

[0023] (2) In the prior art, the turning radius of the right-angle elbow is usually set to 0.5 to 0.8 times. Although this effectively reduces the pressure loss between the gas and the right-angle elbow, it is also prone to gas turbulence, which in turn causes the detection data when the gas flows into the air pressure detector to become inaccurate. The present application sets the turning radius of the right-angle elbow to 1.1 to 1.5 times. Although this setting increases the overall path of the right-angle elbow and increases the pressure loss between the gas and the right-angle elbow, it is less likely for gas turbulence to occur when the gas passes through the right-angle elbow with a turning radius of 1.1-1.5 times, thereby making the detection data when the gas flows into the air pressure detector more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model.

[0026] Figure 2 It is a schematic diagram of the centralized control pipeline structure provided by an embodiment of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the original design provided by the embodiment of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the improved design provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0030] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Reference Figure 1 As shown, a centralized control type pressure difference real-time monitoring device for a purification plant comprises: a first differential pressure gauge 10, through which the high pressure port is connected to the first functional room 12 and the low pressure port is connected to the second functional room 13 via a connecting pipeline 11; a second differential pressure gauge 20, through which the high pressure port is connected to the third functional room 21 and the low pressure port is connected to the fourth functional room 22 via the connecting pipeline 11; a third differential pressure gauge 30, through which the high pressure port is connected to the fifth functional room 32 and the low pressure port is connected to atmospheric pressure via a centralized control pipeline 31; the pressure difference between the first functional room 12 and the second functional room 13 is calculated by the first differential pressure gauge 10, and the pressure difference between the first functional room 12 and the second functional room 13 is calculated by the third differential pressure gauge 30. The second differential pressure gauge 20 calculates the pressure difference between the third function room 21 and the fourth function room 22, and the absolute pressure value of the fifth function room 32 and the atmospheric pressure is calculated by the third differential pressure gauge 30, and then the pressure difference between the second function room 13 and the fifth function room 32 is calculated by comparing with the first differential pressure gauge 10, and then the pressure difference between the fourth function room 22 and the fifth function room 32 is calculated by comparing with the second differential pressure gauge 20. This can not only reduce the number of differential pressure gauges and reduce the loss of resources, but also reduce errors to a certain extent by calculating the absolute pressure value and then comparing with other differential pressure gauges.

[0032] It further comprises a fourth differential pressure gauge 40, the high pressure port of which is connected to the fourth functional room 12 through the connecting pipeline 11, and the low pressure port of which is connected to the sixth functional room 41; a fifth differential pressure gauge 50, the high pressure port of which is connected to the seventh functional room 51 through the connecting pipeline 11, and the low pressure port of which is connected to the eighth functional room 52; a sixth differential pressure gauge 60, the high pressure port of which is connected to the sixth functional room 41 through the connecting pipeline 11, and the low pressure port of which is connected to the ninth functional room 61;

[0033] The seventh differential pressure gauge 70 has a high pressure port connected to the eighth functional room 52 and a low pressure port connected to the tenth functional room 71 through the connecting pipeline 11;

[0034] The eighth differential pressure gauge 80 has a high pressure port connected to the eleventh functional room 81 and a low pressure port connected to the twelfth functional room 82 through the connecting pipeline 11;

[0035] The seventh differential pressure gauge 90 has a high-pressure port connected to the thirteenth functional room 91 and a low-pressure port connected to the fourteenth functional room 92 through the connecting pipeline 11.

[0036] Reference Figure 2 As shown, the centralized control pipeline 31 includes two sections of right-angle elbows 311 and a connecting pipe 312. The two ends of the connecting pipe 312 are respectively connected to one end of the two sections of the right-angle elbows 311, one end of the right-angle elbow 311 away from the connecting pipe 312 is connected to the air vent direct pipe 313, and the other end of the right-angle elbow 311 away from the connecting pipe 312 is connected to the pressure measuring port 314.

[0037] As a further improvement, the turning radius of the two sections of the right-angle elbow 311 is 1.1 to 1.5 times. In the prior art, the turning radius of the right-angle elbow 311 is usually set to 0.5 to 0.8 times. Although this effectively reduces the pressure loss between the gas and the right-angle elbow 311, it is also prone to gas turbulence, which in turn causes the detection data when the gas flows into the air pressure detector to become inaccurate. The present application sets the turning radius of the right-angle elbow 311 to 1.1 to 1.5 times. Although this setting increases the overall path of the right-angle elbow 311 and thereby increases the pressure loss between the gas and the right-angle elbow, the gas is less likely to experience gas turbulence when passing through the right-angle elbow 311 with a turning radius of 1.1-1.5 times, thereby making the detection data when the gas flows into the air pressure detector more accurate.

[0038] The centralized control pipeline 31 is connected to the functional room ceiling 321 through the air inlet direct pipe 313.

[0039] As a further improvement, a locking nut 315 is provided at the connection between the connecting pipe 312 and the air duct direct pipe fitting 313 for fixing. By providing the locking nut 315, the probability of air pressure leakage can be effectively reduced, and the detection accuracy of the differential pressure gauge can be effectively improved.

[0040] Reference Figure 3 , Figure 4As shown, in this embodiment, the purification plant has a total of 14 functional rooms, namely, the second female shift, the first female shift, the first male shift, the second male shift, the laundry room, the buffer room, the weighing room, the liquid preparation room, the clean corridor, the dressing room, the subpackaging room, the packing and packaging room, the air box room, and the unpacking room. In the original design, the pressure difference between the first female shift and the second female shift is measured by the pressure differential meter P1, the pressure difference between the first male shift and the second male shift is measured by the pressure differential meter P2, and the pressure difference between the laundry room and the first male shift is measured by the pressure differential meter P3. , measure the pressure difference between the buffer room and the second female shift through the pressure differential gauge P4, measure the pressure difference between the buffer room and the second male shift through the pressure differential gauge P5, measure the pressure difference between the weighing room and the liquid preparation room through the pressure differential gauge P6, measure the pressure difference between the clean corridor and the buffer room through the pressure differential gauge P7, measure the pressure difference between the clothing room and the buffer room through the pressure differential gauge P8, measure the pressure difference between the packing room and the packaging and outsourcing room through the pressure differential gauge P9, and measure the pressure difference between the air box room and the unpacking room through the pressure differential gauge P10.

[0041] Reference Figure 4 As shown, the improved design measures the pressure difference between the first female shift and the second female shift through the pressure differential gauge P1, measures the pressure difference between the first male shift and the second male shift through the pressure differential gauge P2, connects the buffer room with the atmospheric pressure through the pressure differential gauge P3, and calculates the pressure difference between the buffer room and the second female shift, as well as the pressure difference between the buffer room and the second male shift through the difference between P1 and P2, measures the pressure difference between the laundry room and the second male shift through the pressure differential gauge P4, measures the pressure difference between the weighing room and the liquid preparation room through the pressure differential gauge P5, connects the buffer room with the atmospheric pressure through the pressure differential gauge P3, and calculates the pressure difference between the buffer room and the clean corridor, as well as the pressure difference between the buffer room and the dressing room through the difference between P6 and P7, measures the pressure difference between the packing room and the marking and packaging room through the pressure differential gauge P8, and measures the pressure difference between the air box room and the unpacking room through the pressure differential gauge P9, which not only reduces one pressure differential gauge but also improves the detection accuracy.

[0042] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A centralized control pressure difference real-time monitoring device for a purification plant, characterized in that: include: A first differential pressure gauge (10), whose high-pressure port is connected to the first functional room (12) and whose low-pressure port is connected to the second functional room (13) via a connecting pipeline (11); A second differential pressure gauge (20), whose high-pressure port is connected to the third functional room (21) and whose low-pressure port is connected to the fourth functional room (22) via a connecting pipeline (11); A third differential pressure gauge (30), whose high-pressure port is connected to the fifth functional room (32) through a centralized control pipeline (31), and whose low-pressure port is connected to atmospheric pressure; The pressure difference between the first functional room (12) and the second functional room (13) is calculated by a first differential pressure meter (10), the pressure difference between the third functional room (21) and the fourth functional room (22) is calculated by a second differential pressure meter (20), and the absolute pressure value of the fifth functional room (32) and the atmospheric pressure is calculated by a third differential pressure meter (30), and then the pressure difference between the second functional room (13) and the fifth functional room (32) is calculated by comparing with the first differential pressure meter (10), and then the pressure difference between the fourth functional room (22) and the fifth functional room (32) is calculated by comparing with the second differential pressure meter (20).

2. A centralized control pressure difference real-time monitoring device for a purification plant according to claim 1, characterized in that: It further comprises a fourth differential pressure gauge (40), the high pressure port of which is connected to the fourth functional room (22) and the low pressure port of which is connected to the sixth functional room (41) via a connecting pipeline (11); A fifth differential pressure gauge (50), whose high-pressure port is connected to the seventh functional room (51) and whose low-pressure port is connected to the eighth functional room (52) via a connecting pipeline (11); A sixth differential pressure gauge (60), whose high-pressure port is connected to the sixth functional room (41) and whose low-pressure port is connected to the ninth functional room (61) via a connecting pipeline (11); A seventh differential pressure gauge (70), whose high-pressure port is connected to the eighth functional room (52) and whose low-pressure port is connected to the tenth functional room (71) via a connecting pipeline (11); An eighth differential pressure gauge (80), whose high-pressure port is connected to the eleventh functional room (81) and whose low-pressure port is connected to the twelfth functional room (82) via a connecting pipeline (11); The ninth differential pressure gauge (90) has a high-pressure port connected to the thirteenth functional room (91) and a low-pressure port connected to the fourteenth functional room (92) via a connecting pipeline (11).

3. A centralized control pressure difference real-time monitoring device for a purification plant according to claim 1, characterized in that: The centralized control pipeline (31) comprises two sections of right-angle elbows (311) and a connecting pipe (312); two ends of the connecting pipe (312) are respectively connected to one end of the two sections of the right-angle elbows (311); one end of the right-angle elbow (311) away from the connecting pipe (312) is connected to an air inlet direct pipe fitting (313); and another end of the right-angle elbow (311) away from the connecting pipe (312) is connected to a pressure measuring port (314).

4. A centralized control pressure difference real-time monitoring device for a purification plant according to claim 3, characterized in that: The turning radius of the two sections of the right-angle elbows (311) is 1.1 to 1.5 times.

5. A centralized control pressure difference real-time monitoring device for a purification plant according to claim 4, characterized in that: The centralized control pipeline (31) is connected to the functional room ceiling (321) via an air inlet direct pipe (313).

6. A centralized control pressure difference real-time monitoring device for a purification plant according to claim 5, characterized in that: A locking nut (315) is also provided at the connection between the connecting pipe (312) and the air inlet direct pipe fitting (313) for fixing.

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