CN217331791U - Flow regulating device for monitoring chemical waste gas - Google Patents
Flow regulating device for monitoring chemical waste gas Download PDFInfo
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- CN217331791U CN217331791U CN202220684624.XU CN202220684624U CN217331791U CN 217331791 U CN217331791 U CN 217331791U CN 202220684624 U CN202220684624 U CN 202220684624U CN 217331791 U CN217331791 U CN 217331791U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model provides a flow regulating device for chemical waste gas monitoring, which comprises an air inlet pipeline, a pump component and an air outlet pipeline which are connected in sequence, wherein a first flow regulating valve is arranged on the air outlet pipeline; the regulating pipeline is connected with an outlet of the pump assembly; the pump assembly includes a sampling pump. The utility model discloses a flow regulation apparatus for chemical waste gas monitoring guarantees that the waste gas sample process velocity of flow is fast and satisfy detecting instrument's flow requirement, improves waste gas detection response speed.
Description
Technical Field
The utility model belongs to the technical field of exhaust gas monitoring, particularly, relate to a flow control device for chemical industry exhaust gas monitoring.
Background
In the chemical industry, exhaust gases are generally hazardous. Especially in the exhaust gas discharged from a flare, the exhaust gas may contain a large amount of flammable, toxic, and Highly Reactive Volatile Organic Compounds (HRVOCs). Therefore, there is a need for real-time monitoring and analysis of exhaust gas from chemical production equipment or heavy machinery to achieve reduced emissions and pollution.
In the prior art, only a sampling pump is arranged for sampling waste gas to provide pumping force, the flow rate of the waste gas in the process of conveying the waste gas from a sampling position to a detection instrument is low, the time is long, and the detection instantaneity is influenced. The exhaust gas is easy to diffuse in the transmission process, the original state of the exhaust gas is changed, and the detection accuracy is influenced.
Disclosure of Invention
The utility model is not enough to the aforesaid, a flow regulation apparatus for chemical waste gas monitoring is provided, guarantees that the waste gas sampling process velocity of flow is fast and satisfy detecting instrument's flow requirement, improves waste gas detection response speed.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a flow regulating device for chemical waste gas monitoring, which comprises an air inlet pipeline, a pump component and an air outlet pipeline which are connected in sequence, wherein the air outlet pipeline is provided with a first flow regulating valve; the regulating pipeline is connected with an outlet of the pump assembly; the pump assembly comprises a sampling pump; the first flow regulating valve is used for controlling the gas flow of the gas outlet pipeline so as to meet the gas flow required by rear-end detection, and the regulating pipeline is used for shunting the gas output by the pump assembly.
As a further improvement of the utility model, the pump assembly still includes the third flow control valve, sampling pump and third flow control valve parallel connection.
As a further improvement of the utility model, the pump package spare includes two sampling pumps, two sampling pump parallel connection.
As a further improvement, the pump assembly comprises two sampling pumps and a three-way valve, the public end and the air inlet pipeline of the three-way valve are connected, the other two ends of the three-way valve are respectively connected with the inlets of the two sampling pumps, and the outlets of the two sampling pumps are connected with the air outlet pipeline and the adjusting pipeline.
As a further improvement, the pump package spare includes two sampling pumps and three-way valve, the common port and the play gas pipeline of three-way valve and adjust the tube coupling, all the other both ends of three-way valve respectively with two sampling pump's exit linkage, two sampling pump's import all with the air inlet tube coupling.
As a further improvement of the present invention, the pump assembly includes a first sampling pump, a second sampling pump, a first three-way valve and a second three-way valve, a port a of the first three-way valve is connected to the air inlet pipeline, a port B of the first three-way valve is connected to the inlet of the first sampling pump, a port C of the first three-way valve is connected to the inlet of the second sampling pump, an outlet of the first sampling pump is connected to the port B of the second three-way valve, an outlet of the second sampling pump is connected to the port C of the second three-way valve, and a port a of the second three-way valve is connected to the air outlet pipeline and the adjusting pipeline; the port A of the first three-way valve is a public end, and the port A of the second three-way valve is a public end.
As a further improvement, the parallel connection has a fourth flow control valve on the first sampling pump, the parallel connection has a fifth flow control valve on the second sampling pump.
As a further improvement of the present invention, the pump assembly includes a third sampling pump, a fourth sampling pump, a first two-way valve and a second two-way valve, a port a of the first two-way valve is connected to the air inlet pipeline, a port B of the first two-way valve is connected to an inlet of the third sampling pump, and an outlet of the third sampling pump is connected to the air outlet pipeline and the adjusting pipeline; and a port A of the second two-way valve is connected with the air inlet pipeline, a port B of the second two-way valve is connected with an inlet of a fourth sampling pump, and an outlet of the fourth sampling pump is connected with the air outlet pipeline and the adjusting pipeline.
As a further improvement of the utility model, first two-way valve and second two-way valve are used for switching third sampling pump and fourth sampling pump for third sampling pump or fourth sampling pump output gas.
As a further improvement of the utility model, a second flow regulating valve is arranged on the regulating pipeline.
As the further improvement of the utility model, the flow ratio of the flow of the gas outlet pipeline and the flow of the adjusting pipeline is 1: 2-6.
As a further improvement, the adjusting pipeline is further provided with a check valve, and the flow direction of the check valve is the outlet from the inlet of the adjusting pipeline to the adjusting pipeline.
As the utility model discloses a further improvement still includes sampling assembly, is connected through transmission line between sampling assembly and the air inlet pipeline, and transmission line's pipe diameter is 6 ~ 14mm, and transmission line's length is not more than 75 m.
Compared with the prior art, the technical scheme of the utility model following beneficial effect has: the utility model provides a flow control device for chemical waste gas monitoring, through setting up the pump package spare including the sampling pump, for the waste gas flow provides power, improve the waste gas flow rate, improve detection response speed then; an outlet of the pump assembly is provided with an adjusting pipeline and an air outlet pipeline, the air outlet pipeline is connected with the detection instrument, so that one part of the waste gas pumped by the pump assembly flows into the adjusting pipeline, the other part of the waste gas flows into the air outlet pipeline and then flows into the detection instrument, the adjusting pipeline has a flow dividing effect, the flow of the waste gas entering the detection instrument is reduced, the flow rate entering the detection instrument is improved, and the detection response speed is improved; through set up first flow control valve on outlet pipeline, the accurate control flows in the waste gas flow of detecting instrument, satisfies the flow requirement of detecting instrument. The utility model provides a flow regulation apparatus for chemical waste gas monitoring guarantees that the waste gas sample process velocity of flow is fast and satisfy detecting instrument's flow requirement, improves the exhaust-gas detection response speed.
Drawings
Fig. 1 is a schematic structural diagram of a flow rate adjusting device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first preferred construction of a pump assembly in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second preferred construction of a pump assembly in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a third preferred construction of a pump assembly in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a fourth preferred construction of a pump assembly in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a flow rate adjusting device according to a preferred embodiment of the present invention.
The figure shows that: the system comprises an air inlet pipeline 1, a pump assembly 2, an air outlet pipeline 3, a first flow regulating valve 31, a regulating pipeline 4, a sampling pump 21, a third flow regulating valve 22, a first sampling pump 23, a second sampling pump 24, a first three-way valve 25, a second three-way valve 26, a third sampling pump 27, a fourth sampling pump 28, a first two-way valve 29, a second two-way valve 210 and a second flow regulating valve 41.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.
The embodiment of the utility model provides a flow control device for chemical waste gas monitoring, as shown in figure 1, including air inlet pipe way 1, pump assembly 2 and the gas outlet pipe way 3 that connects gradually, be equipped with first flow control valve 31 on the gas outlet pipe way 3. The flow regulating device of the present embodiment further comprises a regulating line 4, and the regulating line 4 is connected with an outlet of the pump assembly 2. The pump assembly includes a sampling pump. Wherein, the first flow control valve 31 is used for controlling the gas flow of the gas outlet pipeline 3 so as to meet the gas flow required by the rear-end detection, and the adjusting pipeline 4 is used for shunting the gas output by the pump assembly 2.
The flow regulating device for monitoring chemical waste gas in the embodiment has the following working process:
the first flow regulating valve 31 is adjusted according to the flow requirement of the detecting instrument. Starting pump assembly 2, waste gas gets into air inlet pipeline 1 fast under pump assembly 2's suction, behind pump assembly 2, under the effect of first flow control valve 31, proper amount waste gas flows into out gas pipeline 3 and then flows into detecting instrument, and remaining waste gas flows into adjusting pipeline 4.
The flow regulating device for monitoring chemical waste gas provided by the embodiment of the utility model provides power for waste gas flow by arranging the pump assembly 2 comprising the sampling pump 21, thereby improving the flow speed of the waste gas and further improving the detection response speed; an adjusting pipeline 4 and an air outlet pipeline 3 are arranged at an outlet of the pump assembly 2, the air outlet pipeline 3 is connected with a detection instrument, so that one part of waste gas pumped by the pump assembly 2 flows into the adjusting pipeline 4, the other part of waste gas flows into the air outlet pipeline 3 and then flows into the detection instrument, the adjusting pipeline 4 has a flow dividing effect, the flow of the waste gas entering the detection instrument is reduced, the flow rate of the waste gas entering the detection instrument is improved, and the detection response speed is improved; through set up first flow control valve 31 on gas outlet pipe 3, the exhaust gas flow who flows into the detecting instrument of accurate control satisfies the flow requirement of detecting instrument. The utility model discloses a flow regulation apparatus for chemical waste gas monitoring guarantees that the waste gas sample process velocity of flow is fast and satisfy detecting instrument's flow requirement, improves the exhaust-gas detection response speed.
Wherein the pump assembly 2 comprises a sampling pump 21 as a basic structure, the pump assembly 2 also has various preferred structures.
In a first preferred structure, as shown in fig. 2, the pump assembly 2 further includes a third flow regulating valve 22, and the sampling pump 21 and the third flow regulating valve 22 are connected in parallel. In the preferred structure, the sampling pump 21 is connected with the third flow regulating valve 22 in parallel, the flow of the sampling pump 21 can be finely adjusted through the third flow regulating valve 22, and meanwhile, the sampling pump can be prevented from being blocked and short-circuited, and the safety is improved.
In a second preferred configuration, shown in fig. 3, the pump assembly 2 comprises two sampling pumps 21, the two sampling pumps 21 being connected in parallel. In the preferred structure, two sampling pumps 21 connected in parallel, one sampling pump 21 runs, the other sampling pump 21 is standby, and the sampling pump 21 can be switched when in maintenance, so that the waste gas monitoring is ensured not to stop.
In the third structure, two sampling pumps 21 can be connected in parallel through a three-way valve, and the two sampling pumps 21 are switched through the three-way valve, so that the two sampling pumps can be used one by one. The three-way valve can set up in the import of two sampling pumps, and is concrete, and the pump package spare includes two sampling pumps 21 and three-way valve, and the common port and the inlet line 1 of three-way valve are connected, and all the other both ends of three-way valve are connected with the access connection of two sampling pumps 21 respectively, and the export of two sampling pumps 21 all is connected with gas outlet pipeline 3 and regulation pipeline 4.
The three-way valve also can set up in the export of two sampling pumps, and is concrete, and the pump package spare includes two sampling pumps 21 and three-way valve, and the common port and the gas outlet pipeline 3 and the adjustment line 4 of three-way valve are connected, and all the other both ends of three-way valve are connected with the exit linkage of two sampling pumps 21 respectively, and the import of two sampling pumps 21 all is connected with air inlet pipeline 1.
The three-way valves may also be disposed at two ends of two sampling pumps, as shown in fig. 4, the pump assembly 2 includes a first sampling pump 23, a second sampling pump 24, a first three-way valve 25 and a second three-way valve 26, a port a of the first three-way valve 25 is connected with the air intake pipeline 1, a port B of the first three-way valve 25 is connected with an inlet of the first sampling pump 23, a port C of the first three-way valve 25 is connected with an inlet of the second sampling pump 24, an outlet of the first sampling pump 23 is connected with a port B of the second three-way valve 26, an outlet of the second sampling pump 24 is connected with a port C of the second three-way valve 26, and a port a of the second three-way valve 26 is connected with the air outlet pipeline 3 and the regulating pipeline 4. The port a of the first three-way valve 25 is a common port, and the port a of the second three-way valve 26 is a common port. In the preferred structure, the first sampling pump 23 and the second sampling pump 24 are used by one through the first three-way valve 25 and the second three-way valve 26, and the first sampling pump 23 and the second sampling pump 24 are switched by switching the first three-way valve 25 and the second three-way valve 26, so that the switching is simple, convenient and controllable. Preferably, the first sampling pump 23 is connected in parallel with a fourth flow control valve, and the second sampling pump 24 is connected in parallel with a fifth flow control valve. Flow regulation of the first sampling pump and the second sampling pump is achieved respectively, short circuit caused by the fact that the sampling pumps are blocked is prevented, and safety is improved.
In a fourth preferred structure, as shown in fig. 5, the pump assembly 2 includes a third sampling pump 27, a fourth sampling pump 28, a first two-way valve 29 and a second two-way valve 210, a port a of the first two-way valve 29 is connected to the air inlet pipeline 1, a port B of the first two-way valve 29 is connected to an inlet of the third sampling pump 27, and an outlet of the third sampling pump 27 is connected to the air outlet pipeline 3 and the regulating pipeline 4. The port a of the second two-way valve 210 is connected to the air inlet pipeline 1, the port B of the second two-way valve 210 is connected to the inlet of the fourth sampling pump 28, and the outlet of the fourth sampling pump 28 is connected to the air outlet pipeline 3 and the adjusting pipeline 4. The first two-way valve 29 and the second two-way valve 210 are used to switch the third sampling pump 27 and the fourth sampling pump 28 so that the third sampling pump 27 or the fourth sampling pump 28 outputs gas.
In the preferred structure, when the third sampling pump 27 is used, the first two-way valve 29 is opened, the second two-way valve 210 is closed, when the fourth sampling pump 28 is used, the first two-way valve 29 is closed, the second two-way valve 210 is opened, and by opening and closing the first two-way valve 29 and the second two-way valve 210, the first sampling pump 27 and the fourth sampling pump 28 can be used and switched, so that the switching is flexible and convenient.
As a preferable example, as shown in fig. 6, the regulating line 4 is provided with a second flow rate regulating valve 41. The second flow control valve 41 precisely adjusts the flow of the waste gas entering the adjusting pipeline 4, so that the shunting effect of the adjusting pipeline is improved, the first flow control valve 31 precisely adjusts the flow of the waste gas entering the gas outlet pipeline 3, the first flow control valve and the second flow control valve are combined, the flow of the waste gas entering the gas outlet pipeline and the detecting instrument is further precisely controlled, the flow rate of the waste gas entering the detecting instrument is improved, and the detection response speed is further improved.
Preferably, the flow ratio of the gas outlet pipeline 3 to the regulating pipeline 4 is 1: 2-6 by regulating the first flow regulating valve 31 and the second flow regulating valve 41. The shunting effect of the adjusting pipeline is improved, so that the flow of the waste gas entering the gas outlet pipeline and the detecting instrument is further accurately controlled, the flow speed of the waste gas entering the detecting instrument is improved, and the detection response speed is further improved.
Preferably, the regulating pipeline 4 is further provided with a check valve, and the flow direction of the check valve is from the inlet of the regulating pipeline to the outlet of the regulating pipeline. The regulating pipeline 4 is provided with a one-way valve to prevent the waste gas from flowing back to influence the flow and speed of the waste gas entering the gas outlet pipeline.
As a preferred example, the flow regulating device of the preferred embodiment further comprises a sampling assembly, the sampling assembly is connected with the air inlet pipeline through a transmission pipeline, the pipe diameter of the transmission pipeline is 6-14 mm, and the length of the transmission pipeline is not more than 75 m. Because a certain distance exists between the sampling position and the detecting instrument, the preferred embodiment adopts the transmission pipeline with the pipe diameter and the length of the specification, thereby ensuring the flow speed of waste gas transmission and improving the response time of waste gas detection.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (13)
1. A flow regulating device for chemical waste gas monitoring is characterized by comprising an air inlet pipeline (1), a pump assembly (2) and an air outlet pipeline (3) which are sequentially connected, wherein a first flow regulating valve (31) is arranged on the air outlet pipeline (3); the adjusting device also comprises an adjusting pipeline (4), and the adjusting pipeline (4) is connected with an outlet of the pump assembly (2); the pump assembly (2) comprises a sampling pump (21); the first flow regulating valve (31) is used for controlling the gas flow of the gas outlet pipeline (3) so as to meet the gas flow required by rear-end detection, and the regulating pipeline (4) is used for shunting the gas output by the pump assembly (2).
2. The flow regulating device for chemical exhaust gas monitoring according to claim 1, characterized in that the pump assembly (2) further comprises a third flow regulating valve (22), and the sampling pump (21) and the third flow regulating valve (22) are connected in parallel.
3. Flow regulating device for chemical exhaust gas monitoring according to claim 1, characterized in that the pump assembly (2) comprises two sampling pumps (21), the two sampling pumps (21) being connected in parallel.
4. The flow regulating device for chemical waste gas monitoring according to claim 1, characterized in that the pump assembly (2) comprises two sampling pumps (21) and a three-way valve, a common end of the three-way valve is connected with the air inlet pipeline (1), the other two ends of the three-way valve are respectively connected with inlets of the two sampling pumps (21), and outlets of the two sampling pumps (21) are connected with the air outlet pipeline (3) and the regulating pipeline (4).
5. The flow regulating device for chemical waste gas monitoring according to claim 1, characterized in that the pump assembly (2) comprises two sampling pumps (21) and a three-way valve, a common end of the three-way valve is connected with the gas outlet pipeline (3) and the regulating pipeline (4), the other two ends of the three-way valve are respectively connected with outlets of the two sampling pumps (21), and inlets of the two sampling pumps (21) are connected with the gas inlet pipeline (1).
6. The flow regulating device for chemical waste gas monitoring according to claim 1, characterized in that the pump assembly (2) comprises a first sampling pump (23), a second sampling pump (24), a first three-way valve (25) and a second three-way valve (26), wherein a port a of the first three-way valve (25) is connected with the air inlet pipeline (1), a port B of the first three-way valve (25) is connected with an inlet of the first sampling pump (23), a port C of the first three-way valve (25) is connected with an inlet of the second sampling pump (24), an outlet of the first sampling pump (23) is connected with a port B of the second three-way valve (26), an outlet of the second sampling pump (24) is connected with a port C of the second three-way valve (26), and a port a of the second three-way valve (26) is connected with the air outlet pipeline (3) and the regulating pipeline (4); and the port A of the first three-way valve (25) is a common end, and the port A of the second three-way valve (26) is a common end.
7. The flow regulating device for chemical waste gas monitoring according to claim 6, characterized in that a fourth flow regulating valve is connected in parallel to the first sampling pump (23), and a fifth flow regulating valve is connected in parallel to the second sampling pump (24).
8. The flow regulating device for chemical waste gas monitoring according to claim 1, characterized in that the pump assembly comprises a third sampling pump (27), a fourth sampling pump (28), a first two-way valve (29) and a second two-way valve (210), a port A of the first two-way valve (29) is connected with the air inlet pipeline (1), a port B of the first two-way valve (29) is connected with an inlet of the third sampling pump (27), and an outlet of the third sampling pump (27) is connected with the air outlet pipeline (3) and the regulating pipeline (4); the port A of the second two-way valve (210) is connected with the air inlet pipeline (1), the port B of the second two-way valve (210) is connected with the inlet of the fourth sampling pump (28), and the outlet of the fourth sampling pump (28) is connected with the air outlet pipeline (3) and the adjusting pipeline (4).
9. The flow regulating device for chemical industry exhaust gas monitoring according to claim 8, characterized in that the first and second two-way valves (29, 210) are used for switching the third and fourth sampling pumps (27, 28) so that the third sampling pump (27) or the fourth sampling pump (28) outputs gas.
10. The flow regulating device for chemical waste gas monitoring according to claim 1 or 7, characterized in that a second flow regulating valve (41) is arranged on the regulating pipeline (4).
11. The flow regulating device for chemical exhaust gas monitoring according to claim 10, wherein the ratio of the flow of the gas outlet pipeline (3) to the flow of the regulating pipeline (4) is 1: 2 to 6.
12. The flow regulating device for chemical waste gas monitoring according to claim 1, wherein the regulating pipeline (4) is further provided with a one-way valve, and the flow direction of the one-way valve is from the inlet of the regulating pipeline to the outlet of the regulating pipeline.
13. The flow regulating device for chemical waste gas monitoring according to claim 1, further comprising a sampling assembly, wherein the sampling assembly is connected with the air inlet pipeline through a transmission pipeline, the pipe diameter of the transmission pipeline is 6-14 mm, and the length of the transmission pipeline is not more than 75 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220684624.XU CN217331791U (en) | 2022-03-28 | 2022-03-28 | Flow regulating device for monitoring chemical waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220684624.XU CN217331791U (en) | 2022-03-28 | 2022-03-28 | Flow regulating device for monitoring chemical waste gas |
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| Publication Number | Publication Date |
|---|---|
| CN217331791U true CN217331791U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220684624.XU Active CN217331791U (en) | 2022-03-28 | 2022-03-28 | Flow regulating device for monitoring chemical waste gas |
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| CN (1) | CN217331791U (en) |
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2022
- 2022-03-28 CN CN202220684624.XU patent/CN217331791U/en active Active
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