Negative pressure detection device for inlet of industrial waste gas treatment equipment
By using transparent polytetrafluoroethylene pipes and nitrogen purge mechanisms in industrial waste gas treatment equipment, the instability and blockage problems of the negative pressure detection device are solved, and the stability of negative pressure detection and the normal operation of the equipment are achieved.
Patent Information
- Application Number
- CN202422920367.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing negative pressure detection devices in industrial waste gas treatment equipment are unstable and prone to detection port blockage, which cannot meet normal production needs.
Use transparent polytetrafluoroethylene pipes to connect the pressure transmitter, throttling speed control valve and nitrogen inlet. Observe dust accumulation through the transparent pipe and use nitrogen to purge and remove blockage to ensure that the pipe is unobstructed.
It improves the stability of negative pressure detection, prevents pipe blockage, and ensures the normal operation of exhaust gas treatment equipment.
Smart Images

Figure CN223425091U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of negative pressure detection devices, more specifically to a kind of photovoltaic, semiconductor and panel field's industrial waste gas treatment equipment's entrance negative pressure detection device, belong to negative pressure detection technical field. BACKGROUND
[0002] In photovoltaic, semiconductor and panel production field, waste gas treatment equipment needs to be set to make the waste gas generated in production process to discharge after reaching standard, and the entrance of waste gas treatment equipment needs to be detected.
[0003] In prior art, related negative pressure detection device has unstable work and often appears the problem of detection mouth blockage, cannot effectively meet use needs, and affects normal production application. UTILITY MODEL CONTENT
[0004] The utility model provides a kind of industrial waste gas treatment equipment entrance negative pressure detection device, which aims to overcome the above-mentioned deficiencies in the prior art, and can judge and handle the blockage problem in time, improving the stability of negative pressure detection.
[0005] The technical solution of the utility model: a kind of industrial waste gas treatment equipment entrance negative pressure detection device, its structure includes pressure transmitter and throttling speed regulating valve, wherein the pressure transmitter is connected with the one end of L type fast plug connector, the other end of L type fast plug connector is connected with the first end of T type fast plug connector through a gas path pipeline, the second end of T type fast plug connector is connected with negative pressure detection mouth through a gas path pipeline, the third end of T type fast plug connector is connected with the one end of throttling speed regulating valve through a gas path pipeline, the other end of throttling speed regulating valve is connected with nitrogen inlet through a gas path pipeline, each gas path pipeline is transparent pipeline.Each gas path pipeline is transparent pipeline, so that whether dust enters pipeline and causes pipeline blockage can be observed in time, nitrogen blowing can be controlled and adjusted through throttling speed regulating valve when blocked, to ensure that pipeline is unobstructed, and improve the stability of negative pressure detection.
[0006] Preferably, the gas path pipeline is a transparent polytetrafluoroethylene pipeline, which can withstand high temperature and corrosion.
[0007] The utility model has the advantages of simple and reasonable structure, transparent pipeline and nitrogen blowing mechanism, which can blow nitrogen in time when dust accumulation affects negative pressure detection, and improve the stability of negative pressure detection. DRAWING DESCRIPTION
[0008] Figure 1 It is the structure schematic diagram of the utility model industrial waste gas treatment equipment entrance negative pressure detection device.
[0009] 1 in the drawing is L type fast plug connector, 2 is gas path pipeline, 3 is T type fast plug connector, 4 is throttling speed regulating valve, 5 is pressure transmitter, 6 is nitrogen inlet, 7 is negative pressure detection mouth. DETAILED DESCRIPTION
[0010] The present invention will be further described in detail below with reference to the embodiments and specific implementation methods.
[0011] like Figure 1 As shown, a negative pressure detection device for the inlet of industrial waste gas treatment equipment includes a pressure transmitter 5 and a throttle speed regulating valve 4, wherein the pressure transmitter 5 is connected to one end of an L-type quick-connector 1, the other end of the L-type quick-connector 1 is connected to the first end of a T-type quick-connector 3 through an air pipeline 2, the second end of the T-type quick-connector 3 is connected to a negative pressure detection port 7 through an air pipeline 2, the third end of the T-type quick-connector 3 is connected to one end of the throttle speed regulating valve 4 through an air pipeline 2, and the other end of the throttle speed regulating valve 4 is connected to a nitrogen inlet 6 through an air pipeline 2, and each air pipeline 2 is a transparent pipeline.
[0012] The gas pipeline is preferably a transparent polytetrafluoroethylene (PFA) pipeline.
[0013] According to the above structure, each gas pipeline adopts a transparent pipeline, which can be used to timely observe whether there is dust entering the pipeline and causing pipeline blockage. The polytetrafluoroethylene material is resistant to high temperature and corrosion.
[0014] During operation, nitrogen enters the T-type quick-connect connector 3 through the throttle speed regulating valve 4 and flows to the negative pressure detection port 7. The amount of nitrogen can be adjusted by the throttle speed regulating valve 4 to blow away the dust that may accumulate in the negative pressure detection port 7 to avoid blockage. The pressure transmitter 5 can provide real-time feedback of the negative pressure value of the negative pressure detection port 7.
[0015] The components described above are all prior art, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.
[0016] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.
Claims
1. A negative pressure detection device for the inlet of industrial waste gas treatment equipment, characterized in that: The invention comprises a pressure transmitter (5) and a throttle speed regulating valve (4), wherein the pressure transmitter (5) is connected to one end of an L-type quick-connect joint (1), the other end of the L-type quick-connect joint (1) is connected to the first end of a T-type quick-connect joint (3) through an air pipeline (2), the second end of the T-type quick-connect joint (3) is connected to a negative pressure detection port (7) through an air pipeline (2), the third end of the T-type quick-connect joint (3) is connected to one end of a throttle speed regulating valve (4) through an air pipeline (2), and the other end of the throttle speed regulating valve (4) is connected to a nitrogen inlet (6) through an air pipeline (2), and each air pipeline (2) is a transparent pipeline.
2. The negative pressure detection device for the inlet of industrial waste gas treatment equipment according to claim 1, characterized in that: The gas pipeline (2) is a transparent polytetrafluoroethylene pipeline.