CN213933777U - Positive pressure type explosion-proof cabinet system for monitoring smoke emission - Google Patents
Positive pressure type explosion-proof cabinet system for monitoring smoke emission Download PDFInfo
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- CN213933777U CN213933777U CN202022933070.6U CN202022933070U CN213933777U CN 213933777 U CN213933777 U CN 213933777U CN 202022933070 U CN202022933070 U CN 202022933070U CN 213933777 U CN213933777 U CN 213933777U
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Abstract
The utility model discloses an explosion-proof rack system of positive pressure type for flue gas emission monitoring, including a plurality of cabinets of placing side by side, be in and install the connecting pipe that admits air on the cabinet of one side outside, be in and install the release connecting pipe on the opposite side cabinet outside, through connecting pipe intercommunication between the cabinet between two adjacent cabinets, the port that the connecting pipe stretches out the cabinet that admits air is connected with compressed air supply equipment via positive pressure controller, the port that the cabinet was stretched out to the release connecting pipe is connected with the pressure release valve, pressure release valve and positive pressure controller electric connection, positive pressure controller and the rack power electric connection for each rack power supply, set an air supply hose in each cabinet respectively. The equipment cabinet comprises a DAS cabinet and a CEMS cabinet, and at least one DAS cabinet and at least one CEMS cabinet are arranged side by side. The utility model discloses can realize that the combination of a malleation controller and many racks is used, it is little to occupy space, controls simply convenient, and malleation explosion-proof performance is good, and is with low costs.
Description
Technical Field
The utility model relates to an explosion-proof rack system of positive pressure type for smoke emission monitoring belongs to the explosion-proof field of rack.
Background
At present, the online monitoring of the smoke emission is realized by using a CEMS cabinet and a DAS cabinet, wherein positive pressure controllers are respectively installed on the CEMS cabinet and the DAS cabinet. Before monitoring, the CEMS cabinet and the DAS cabinet respectively replace gas in the cabinets through respective positive pressure controllers. In the monitoring process, the CEMS cabinet and the DAS cabinet respectively enable the air pressure in the cabinet to be in a reasonable range through respective positive pressure controllers, so that explosive dangerous gases, dust particles and the like in the use environment cannot enter the cabinet body, and the positive pressure explosion-proof effect is achieved. However, it can be found from practical use that the above prior art has the following disadvantages: the positive pressure controllers are respectively arranged on the CEMS cabinet and the DAS cabinet, so that the control difficulty is increased, time and labor are wasted, the occupied space of the cabinets is large, and the implementation cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof rack system of positive pressure type for flue gas emission monitoring, it can realize that a malleation controller uses with the combination of many racks, and it is little to occupy the space, controls simply convenient, and malleation explosion proof ability is good, and is with low costs.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an explosion-proof rack system of positive pressure type for flue gas emission monitoring which characterized in that: it includes a plurality of cabinets of placing side by side, be in and install the junction tube that admits air on the cabinet of one side outermost, be in and install release junction tube on the cabinet of opposite side outermost, through junction tube intercommunication between two adjacent cabinets, the port that the junction tube stretches out the cabinet admits air is connected with compressed air supply equipment via positive pressure controller, the port that release junction tube stretches out the cabinet is connected with pressure relief valve, pressure relief valve and positive pressure controller electric connection, positive pressure controller and the cabinet power electric connection for each cabinet power supply, set an air supply hose in each cabinet respectively, wherein: the equipment cabinet comprises a DAS cabinet and a CEMS cabinet, and at least one DAS cabinet and at least one CEMS cabinet are arranged side by side.
The utility model has the advantages that:
the utility model discloses can realize that the combination of a malleation controller and many racks is used, it is little to occupy space, controls simply convenient, and whole malleation explosion-proof ability is good, and the cooling performance is good, and the practicality is strong, cost greatly reduced.
Drawings
Fig. 1 is the composition schematic diagram of the positive pressure type explosion-proof cabinet system of the utility model.
Fig. 2 is a schematic view of an embodiment of the positive pressure type explosion-proof cabinet system of the present invention.
Fig. 3 is when DAS rack trouble, the utility model discloses explosion-proof rack system's of positive pressure type working diagram.
Fig. 4 is a schematic working diagram of the positive pressure type explosion-proof cabinet system of the present invention when the CEMS cabinet fails.
Detailed Description
Referring to fig. 1, the positive pressure type explosion-proof cabinet system for monitoring smoke emission of the present invention comprises a plurality of cabinets disposed in parallel, wherein the cabinet disposed at the outermost side of one side is installed with an air inlet junction pipe 50, the cabinet disposed at the outermost side of the other side is installed with a releasing junction pipe 70, two adjacent cabinets are communicated with each other by an inter-cabinet junction pipe 60, the port of the air inlet junction pipe 50 extending out of the cabinet is connected to a compressed air supply device (not shown in the figure) via a positive pressure controller 30, the port of the releasing junction pipe 70 extending out of the cabinet is connected to a pressure release valve 80, the pressure release valve 80 is used for detecting the pressure in the cabinet, the pressure release valve 80 is electrically connected to the positive pressure controller 30, the positive pressure controller 30 is electrically connected to a cabinet power supply (not shown in the figure) for supplying power to each cabinet, each cabinet is provided with an air supply hose 90 for shielding the cabinet, wherein: the cabinets include DAS (Data Acquisition System ) cabinets 10 and CEMS (Continuous Emission Monitoring System, called "smoke automatic Monitoring System" or "smoke on-line Monitoring System") cabinets 20, and at least one DAS cabinet 10 and at least one CEMS cabinet 20 are placed side by side.
As shown in fig. 1, the inlet connection stub 50 is connected to the outlet of the positive pressure controller 30 via an air supply pipe 110, and the pressure regulating valve 40 and the inlet shutoff ball valve 100 are attached to the air supply pipe 110 connected between the inlet of the positive pressure controller 30 and the compressed air supply facility, and the pressure regulating valve 40 is usually provided close to the positive pressure controller 30.
In the present invention, the pressure regulating valve 40 can be designed as a pressure reducing valve, and the pressure releasing valve 80 is a pressure releasing valve with a pressure sensor, but is not limited thereto.
In the present invention, the positive pressure controller 30 may be designed as a P + F6000 type positive pressure controller. The positive pressure controller is used for purging explosive and other dangerous gases in the machine cabinet, and positive pressure protection is formed in the machine cabinet.
Referring to fig. 1, if the cabinet is the outermost cabinet with the release stub 70 installed, then: when it is desired to shield the cabinet, the air supply hose 90 is connected between the port of the release junction 70 extending into the cabinet and the port of the inter-cabinet junction 60; when shielding of the cabinet is not required, the air supply hose 90 is placed in the cabinet, or one port of the air supply hose 90 is connected to the port of the release connection pipe 70 or the inter-cabinet connection pipe 60 extending into the cabinet while the other port of the air supply hose 90 is not connected in the air.
Referring to fig. 1, if the cabinet is the outermost cabinet with the inlet junction 50 installed, then: when the cabinet needs to be shielded, the air supply hose 90 is connected between the port of the air inlet short connecting pipe 50 extending into the cabinet and the port of the inter-cabinet short connecting pipe 60; when the cabinet is not required to be shielded, the air supply hose 90 is placed in the cabinet, or one port of the air supply hose 90 is connected to the port of the air inlet short pipe 50 or the inter-cabinet short pipe 60 extending into the cabinet, and the other port of the air supply hose 90 is not connected in the air.
Referring to fig. 1, if the number of the cabinets is greater than 2, the cabinet is a cabinet that is not located at the outermost edge, then: when the cabinet needs to be shielded, the air supply hose 90 is connected between the ports of the two cabinet junction pipes 60 extending into the cabinet; when the cabinet is not required to be shielded, the air supply hose 90 is placed in the cabinet, or one port of the air supply hose 90 is connected to the port of any one of the inter-cabinet connection short pipes 60 extending into the cabinet, and the other port of the air supply hose 90 is not connected in the air.
In practical design, it is possible to design a DAS cabinet 10 and multiple CEMS cabinets 20 to be placed side by side, where, as shown in fig. 1, one CEMS cabinet 20 is outermost on one side and one DAS cabinet 10 is outermost on the other side. Typically, the inlet connection spool 50 is mounted on the outside of the CEMS cabinet 20 and the release connection spool 70 is mounted on the outside of the DAS cabinet 10.
In practical design, it is also contemplated that a DAS cabinet 10 and a CEMS cabinet 20 may be placed side-by-side, as shown in fig. 2.
In practical implementation, besides the situation that one DAS cabinet 10 and a plurality of CEMS cabinets 20 are used in combination as shown in fig. 1, a plurality of DAS cabinets 10 and one or more CEMS cabinets 20 may be designed to be used in combination according to practical needs, without limitation.
In the present invention, the DAS cabinet 10 is a cabinet in which DAS equipment has been installed, and the CEMS cabinet 20 is a cabinet in which CEMS equipment has been installed. The DAS cabinet 10, CEMS cabinet 20, positive pressure controller 30, pressure relief valve 80 are existing equipment or devices in the art.
In the present invention, the inlet connection pipe 50, the inter-cabinet connection pipe 60, and the release connection pipe 70 are tubular connection members, and the air supply hose 90 is a flexible pipe that can be connected to the port of the connection member.
Referring to fig. 2, a DAS cabinet 10 and a CEMS cabinet 20 are shown in close side-by-side relationship. An air inlet short connecting pipe 50 is arranged on the CEMS cabinet 20, a release short connecting pipe 70 is arranged on the DAS cabinet 10, and the DAS cabinet 10 is communicated with the CEMS cabinet 20 through an inter-cabinet short connecting pipe 60. One port of the air supply hose 90 in the CEMS cabinet 20 is connected to the port of the air inlet connection stub 50 extending into the CEMS cabinet 20 while the other port is suspended and not connected. One port of the air supply hose 90 in the DAS cabinet 10 is connected to the port of the inter-cabinet connection stub 60 extending into the DAS cabinet 10, and the other port is suspended without connection.
The following description will be made by taking the positive pressure type explosion-proof cabinet system shown in fig. 2 as an example:
when the pressure regulating valve is used, the pressure regulating valve 40 is adjusted, so that the pressure of the sent compressed air is limited to 0.2 MPa-0.4 MPa, the cabinet doors of all the cabinets are closed, and the positive pressure controller 30 is powered on and started.
The compressed air supplied by the compressed air supply equipment is adjusted in pressure by the pressure adjusting valve 40, blown by the positive pressure controller 30, enters the CEMS cabinet 20 from the air inlet connection short pipe 50, and continues to be inflated into the DAS cabinet 10 by the design of the inter-cabinet connection short pipe 60, that is, the positive pressure controller 30 performs the operation of inflating into the cabinet. When the pressure relief valve 80 detects that the pressure in the two cabinets reaches a pressure threshold value (such as 0.63mbar), the pressure relief valve 80 is opened to release the gas in the cabinets, and the positive pressure controller 30 automatically adjusts the pressure and flow rate according to the cabinet volume to perform the purging operation. And circulating in such a way, and finishing the operation after the gas in the cabinet is replaced for a plurality of times (for example, 5 times).
And then enters a normal operation mode. In normal operation mode, the pressure in the cabinet should be within a reasonable range, i.e. kept around the pressure threshold. When the pressure relief valve 80 detects that the pressure in the cabinet is too low to exceed the pressure threshold and exceeds a reasonable range, the positive pressure controller 30 sends a command to the cabinet power supply to power off the cabinet.
When the DAS cabinet 10 is in a fault and the like and needs maintenance, the cabinet door of the DAS cabinet 10 is opened, the cabinet is powered off integrally, the air supply hose 90 is connected between the port of the release connecting short pipe 70 and the port of the inter-cabinet connecting short pipe 60 in the DAS cabinet 10, as shown in fig. 3, the DAS cabinet 10 is shielded, the DAS cabinet 10 can be maintained at the moment, meanwhile, the positive pressure controller 30 sends a CEMS cabinet power-on instruction to the cabinet power supply, the CEMS cabinet 20 is restarted, air enters the CEMS cabinet 20 but does not enter the DAS cabinet 10, the CEMS cabinet 20 continues to be normally used, and the positive pressure explosion-proof effect is not affected by the DAS cabinet 10.
When the CEMS cabinet 20 is in fault and needs to be maintained, the cabinet door of the CEMS cabinet 20 is opened, the cabinet is powered off integrally, the air supply hose 90 is connected between the port of the air supply short pipe 50 and the port of the inter-cabinet short pipe 60 in the CEMS cabinet 20, as shown in fig. 4, the CEMS cabinet 20 is shielded, the CEMS cabinet 20 can be maintained at the moment, the positive pressure controller 30 sends a DAS cabinet power-on instruction to the cabinet power supply, the DAS cabinet 10 is restarted, air does not enter the CEMS cabinet 20 but enters the DAS cabinet 10, the DAS cabinet 10 continues to be used normally, and the positive pressure explosion-proof effect is not affected by the CEMS cabinet 20.
The utility model has the advantages that:
1. the utility model discloses can realize the combination use of a malleation controller and many racks. In practice, if the CEMS cabinet is designed to have a size (length × width × height) of 800mm × 800mm × 2000mm and the DAS cabinet is designed to have a size (length × width × height) of 600mm × 600mm × 2000mm, the maximum allowable capacity of the P + F6000 type positive pressure controller used can reach 7.2m3Therefore, the utility model discloses can realize that a malleation controller uses with the combination of 5 cabinets at most, whole malleation explosion-proof ability is good, and it is little to occupy space, controls simply convenient, cost greatly reduced.
2. The utility model discloses a positive pressure controller can realize good cooling effect in the rack, and the temperature can keep about 30 ℃ in the rack, satisfies the working requirement.
3. When a certain cabinet breaks down and needs maintenance, the cabinet can be shielded by adopting the air supply hose, other cabinets can be continuously and normally used, and the positive pressure explosion-proof effect is not influenced.
4. The utility model is suitable for a hazardous area's such as petrochemical, power plant, msw incineration exhaust on-line monitoring.
The above description is the preferred embodiment of the present invention and the technical principle applied by the preferred embodiment, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes based on the equivalent transformation, simple replacement, etc. of the technical solution of the present invention all belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides an explosion-proof rack system of positive pressure type for flue gas emission monitoring which characterized in that: it includes a plurality of cabinets of placing side by side, be in and install the junction tube that admits air on the cabinet of one side outermost, be in and install release junction tube on the cabinet of opposite side outermost, through junction tube intercommunication between two adjacent cabinets, the port that the junction tube stretches out the cabinet admits air is connected with compressed air supply equipment via positive pressure controller, the port that release junction tube stretches out the cabinet is connected with pressure relief valve, pressure relief valve and positive pressure controller electric connection, positive pressure controller and the cabinet power electric connection for each cabinet power supply, set an air supply hose in each cabinet respectively, wherein: the equipment cabinet comprises a DAS cabinet and a CEMS cabinet, and at least one DAS cabinet and at least one CEMS cabinet are arranged side by side.
2. A positive pressure explosion proof enclosure system for flue gas emission monitoring as claimed in claim 1 wherein:
the air inlet connecting short pipe is connected with the air outlet of the positive pressure controller through an air supply pipe, and the air inlet of the positive pressure controller is connected with the compressed air supply equipment through the air supply pipe, and the air supply pipe is provided with a pressure regulating valve and an air inlet stop ball valve.
3. A positive pressure explosion proof enclosure system for flue gas emission monitoring as claimed in claim 2 wherein:
the pressure regulating valve is a pressure reducing valve.
4. A positive pressure explosion proof enclosure system for flue gas emission monitoring as claimed in claim 1 wherein:
the positive pressure controller is a P + F6000 type positive pressure controller;
the pressure release valve is a pressure release valve with a pressure sensor.
5. A positive pressure explosion proof enclosure system for flue gas emission monitoring as claimed in claim 1 wherein:
if the cabinet is the cabinet which is positioned at the outermost edge and is provided with the release short connecting pipe, then: when the cabinet needs to be shielded, the air supply hose is connected between the release short connecting pipe extending into the cabinet and the inter-cabinet short connecting pipe; when the cabinet is not required to be shielded, the air supply hose is arranged in the cabinet, or one port of the air supply hose is connected to the release connecting short pipe or the inter-cabinet connecting short pipe extending into the cabinet, and the other port of the air supply hose is suspended;
if the cabinet is the cabinet which is positioned at the outermost edge and is provided with the air inlet short connecting pipe, the air inlet short connecting pipe comprises the following components: when the cabinet needs to be shielded, the air supply hose is connected between the air inlet short connecting pipe extending into the cabinet and the inter-cabinet short connecting pipe; when the cabinet is not required to be shielded, the air supply hose is arranged in the cabinet, or one port of the air supply hose is connected to the air inlet short pipe or the inter-cabinet short pipe extending into the cabinet, and the other port of the air supply hose is suspended;
if the cabinet is not located at the outermost side, then: when the cabinet needs to be shielded, the air supply hose is connected between the two cabinet junction pipes extending into the cabinet; when the cabinet is not required to be shielded, the air supply hose is arranged in the cabinet, or one port of the air supply hose is connected to any one of the short connecting pipes extending into the cabinet, and the other port of the air supply hose is suspended.
6. A positive pressure explosion proof cabinet system for flue gas emission monitoring as claimed in any one of claims 1 to 5, wherein:
a said DAS cabinet and a plurality of said CEMS cabinets are placed side-by-side with one said CEMS cabinet outermost on one side and one said DAS cabinet outermost on the other side.
7. A positive pressure explosion proof cabinet system for flue gas emission monitoring as claimed in any one of claims 1 to 5, wherein:
a said DAS cabinet and a said CEMS cabinet are placed side-by-side next to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022933070.6U CN213933777U (en) | 2020-12-09 | 2020-12-09 | Positive pressure type explosion-proof cabinet system for monitoring smoke emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022933070.6U CN213933777U (en) | 2020-12-09 | 2020-12-09 | Positive pressure type explosion-proof cabinet system for monitoring smoke emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213933777U true CN213933777U (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022933070.6U Active CN213933777U (en) | 2020-12-09 | 2020-12-09 | Positive pressure type explosion-proof cabinet system for monitoring smoke emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213933777U (en) |
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2020
- 2020-12-09 CN CN202022933070.6U patent/CN213933777U/en active Active
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