Dilution probe

Abstract

The utility model provides a dilution probe, and belongs to the technical field of dilution probes. The dilution probe comprises a probe support, a dilution module, a dilution gas pressure transmitter, a vacuum port pressure transmitter, a probe body, a blowback gas control solenoid valve and a fine filter, when the dilution probe is used, the probe body extracts flue gas from a flue, mixed gas is discharged from a sample gas port and is introduced into a subsequent instrument, all sensors are used for monitoring the working state of the probe body, and all the sensors are used for monitoring the working state of the probe body. The standard gas port is used for introducing sample gas for whole-course calibration, and the purging port is used for introducing high-pressure zero gas to purge a fine filter in the probe body and remove dust attached to the surface of the fine filter, so that the pressure of the dilution gas is adjusted, and the probe body is ensured to stably work under a fixed dilution ratio; according to the dilution probe, the electromagnetic valve is controlled through back blowing, so that the maintenance period of the fine filter is prolonged, the labor amount of workers is reduced, and better use experience is brought to a user.

Description

Technical Field

[0001] This application relates to the technical field of dilution probes, and more particularly, to a dilution probe. Background Art

[0002] Dilution probes are used in places where it is necessary to dilute the sample gas to measure one or several sample gas components. For example, the measurement of toxic gas components, the measurement of humidity, or the adjustment of the sample gas concentration to the measurement range of the analyzer. However, since the sample gas often contains dust, although the dust is filtered by the filter element in the dilution probe to ensure the best operation cycle of the dilution probe, it is necessary to regularly maintain the dilution probe and the filter element, which increases the labor intensity of the operator and brings a bad user experience. Utility Model Content

[0003] To make up for the above deficiencies, this application provides a dilution probe, aiming to improve the problem that although the dust in the sample gas is filtered by the filter element in the dilution probe to ensure the best operation cycle of the dilution probe, it is necessary to regularly maintain the dilution probe and the filter element, which increases the labor intensity of the operator.

[0004] This application is implemented as follows:

[0005] This application provides a dilution probe, including a probe bracket, a dilution module, a dilution gas pressure transmitter, a vacuum port pressure transmitter, a probe body, an anti-blowing control solenoid valve, and a fine filter. The probe body and the anti-blowing control solenoid valve are both fixedly installed on the probe bracket;

[0006] The dilution module is integrated on the probe body. The dilution gas pressure transmitter and the vacuum port pressure transmitter are both integrated on the dilution module. The anti-blowing control solenoid valve and the probe body are connected together by an air pipe. The fine filter is arranged inside the probe body.

[0007] In one embodiment of this application, it further includes a housing. The probe bracket is fixed inside the housing, and the probe body penetrates through the housing.

[0008] In one embodiment of this application, it further includes a first temperature sensor, which is arranged on the dilution gas pressure transmitter.

[0009] In one embodiment of this application, it further includes a second temperature sensor, which is arranged on the probe body.

[0010] In one embodiment of this application, it further includes a terminal block, which is fixed on the probe bracket.

[0011] In an embodiment of the present application, the fine filter is inserted into the probe body. A connecting frame is fixedly installed on the outer wall of the probe body. A handle is threaded on the connecting frame. A filter cover is sleeved on the fine filter in a threaded manner. An O-ring is arranged between the filter cover and the fine filter. One end of the handle is fixed on the outer wall of the filter cover.

[0012] In an embodiment of the present application, a dilution gas port is provided on the dilution gas pressure transmitter, a calibration gas port is provided on the probe body, a sample gas port is provided on the vacuum port pressure transmitter, and a purge port is provided on the backflush control solenoid valve.

[0013] The beneficial effects of the present application are as follows: A dilution probe obtained by the above design in the present application, during use, the probe body is used for gas sampling and dilution. The probe body provides a fine filter for direct continuous sampling analysis and measurement, enabling some maintenance work to be concentrated at a single point. The fine filter minimizes the maintenance work of the dust mixture composed of ultrafine and coarse dust to ensure the best operation cycle of the probe body. The probe body is integrated with a backflush control solenoid valve to provide the best backflush effect. A second temperature sensor is installed on the probe body to monitor the temperature of the probe body. The dilution gas port is integrated with a dilution gas pressure transmitter and a first temperature sensor to monitor the pressure state and temperature of the dilution gas in real time. The sample gas port is integrated with a vacuum port pressure transmitter, which cooperates with the dilution gas pressure transmitter of the dilution gas to monitor the dilution state of the probe. The best working conditions and measurement work of the probe body are the necessary conditions for the normal operation of the measurement system. Basically, the sample gas should be kept at the minimum required level. The components optimize the downstream gas treatment, ensuring the best operation while minimizing maintenance to the lowest level. The probe body introduces zero gas into the dilution gas port, generates negative pressure through the dilution module, and connects to the probe rod through the main part of the probe body. The probe body extracts flue gas from the flue, and the mixed gas is discharged from the sample gas port and introduced into the subsequent instrument. Each sensor is used to monitor the working state of the probe body to facilitate adjusting the dilution gas pressure to ensure that the probe body operates stably at a fixed dilution ratio. The calibration gas port is used to introduce calibration gas for full-scale calibration. The purge port is used to introduce high-pressure zero gas to purge the fine filter inside the probe body to remove the dust attached to its surface. This dilution probe utilizes the backflush control solenoid valve to improve the maintenance cycle of the fine filter, reduce the labor intensity of workers, and bring a better user experience to users. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic three-dimensional structure diagram of a dilution probe provided by an embodiment of the present application;

[0016] Figure 2 It is a relationship diagram among a probe holder, a probe body, a dilution module, and a backflush control solenoid valve provided by an embodiment of the present application;

[0017] Figure 3 It is a relationship diagram among a probe body, a dilution gas pressure transmitter, a vacuum port pressure transmitter, and a backflush control solenoid valve provided by an embodiment of the present application;

[0018] Figure 4 It is a partial sectional view of a dilution probe provided by an embodiment of the present application.

[0019] In the figure: 110 - housing; 120 - probe holder; 130 - dilution module; 140 - dilution gas pressure transmitter; 150 - vacuum port pressure transmitter; 160 - first temperature sensor; 170 - second temperature sensor; 180 - probe body; 190 - backflush control solenoid valve; 191 - terminal block; 192 - fine filter; 193 - O-ring; 194 - filter cover; 195 - connecting frame; 196 - handle; 197 - dilution gas port; 198 - calibration gas port; 199 - sample gas port; 1990 - purge port. Specific Embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present application fall within the scope of protection of the present application.

[0021] Examples

[0022] Please refer to Figure 1 - Figure 4, this application provides a technical solution: a dilution probe, including a probe bracket 120, a dilution module 130, a dilution gas pressure transmitter 140, a vacuum port pressure transmitter 150, a probe body 180, a backflush control solenoid valve 190, and a fine filter 192. The probe body 180 and the backflush control solenoid valve 190 are both fixedly installed on the probe bracket 120. The dilution module 130 is integrated on the probe body 180. The dilution gas pressure transmitter 140 and the vacuum port pressure transmitter 150 are both integrated on the dilution module 130. It further includes a first temperature sensor 160, which is arranged on the dilution gas pressure transmitter 140. The setting of the first temperature sensor 160 is used to monitor the temperature of the dilution gas in real time. It also includes a second temperature sensor 170, which is arranged on the probe body 180. The setting of the second temperature sensor 170 is used to monitor the temperature of the probe body 180 in real time;

[0023] The backflush control solenoid valve 190 and the probe body 180 are connected together through an air pipe. The fine filter 192 is arranged inside the probe body 180. The fine filter 192 is inserted into the probe body 180. A connecting frame 195 is fixedly installed on the outer wall of the probe body 180. A handle 196 is threaded on the connecting frame 195. A filter cover 194 is threaded on the fine filter 192. An O-ring 193 is arranged between the filter cover 194 and the fine filter 192. One end of the handle 196 is fixed on the outer wall of the filter cover 194. The setting of the handle 196 facilitates taking out the fine filter 192 from the probe body 180;

[0024] A dilution gas port 197 is arranged on the dilution gas pressure transmitter 140. A calibration gas port 198 is arranged on the probe body 180. A sample gas port 199 is arranged on the vacuum port pressure transmitter 150. A purge port 1990 is arranged on the backflush control solenoid valve 190. It further includes a housing 110. The probe bracket 120 is fixed inside the housing 110. The probe body 180 penetrates through the housing 110. The setting of the housing 110 is used to provide dust protection for the electrical appliances. It also includes a terminal block 191, which is fixed on the probe bracket 120.

[0025] Specifically, the working principle of the dilution probe: During use, the probe body 180 is used for gas sampling and dilution. The probe body 180 provides a fine filter 192 that can directly perform continuous sampling analysis and measurement, enabling some maintenance work to be concentrated at a single point. The fine filter 192 minimizes the maintenance work of the dust mixture composed of ultrafine and coarse dust to ensure the best operation cycle of the probe body 180. The probe body 180 is integrated with a backflush control solenoid valve 190, which can provide the best backflush effect. The probe body 180 is equipped with a second temperature sensor 170 for monitoring the temperature of the probe body 180. At the dilution gas port 197, a dilution gas pressure transmitter 140 and a first temperature sensor 160 are integrated to monitor the pressure state and temperature of the dilution gas in real time. At the sample gas port 199, a vacuum port pressure transmitter 150 is integrated, which cooperates with the dilution gas pressure transmitter 140 of the dilution gas to monitor the dilution state of the probe. The best working conditions and measurement work of the probe body 180 are the necessary conditions for the normal operation of the measurement system. Basically, the sample gas should be kept at the minimum requirement. The components optimize the downstream gas treatment, ensuring the best operation while reducing maintenance to the minimum. The probe body 180 introduces zero gas into the dilution gas port 197. After passing through the dilution module 130 to generate negative pressure, it is connected to the probe rod through the main body part of the probe body 180. The probe body 180 extracts flue gas from the flue, and the mixed gas is discharged from the sample gas port 199 and introduced into the subsequent instrument. Each sensor is used to monitor the working state of the probe body 180 to facilitate adjusting the dilution gas pressure and ensuring that the probe body 180 operates stably at a fixed dilution ratio. The calibration gas port 198 is used to introduce calibration gas for full-scale calibration. The purge port 1990 is used to introduce high-pressure zero gas to purge the fine filter 192 inside the probe body 180 to remove the dust attached to its surface. This dilution probe uses the backflush control solenoid valve 190 to improve the maintenance cycle of the fine filter 192, reduce the labor intensity of workers, and bring a better user experience to users.

[0026] It should be noted that the specific model specifications of the dilution module 130, dilution gas pressure transmitter 140, vacuum port pressure transmitter 150, first temperature sensor 160, second temperature sensor 170, probe body 180, backflush control solenoid valve 190, and terminal block 191 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0027] The power supply and its principle of the dilution module 130, dilution gas pressure transmitter 140, vacuum port pressure transmitter 150, first temperature sensor 160, second temperature sensor 170, probe body 180, backflush control solenoid valve 190, and terminal block 191 are clear to those skilled in the art and will not be described in detail here.

[0028] The above are only embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A dilution probe, characterized in that: The invention comprises a probe support (120), a dilution module (130), a dilution gas pressure transmitter (140), a vacuum port pressure transmitter (150), a probe body (180), a back-blowing gas control solenoid valve (190) and a fine filter (192), wherein the probe body (180) and the back-blowing gas control solenoid valve (190) are both fixedly mounted on the probe support (120); The dilution module (130) is integrated on the probe body (180), the dilution gas pressure transmitter (140) and the vacuum port pressure transmitter (150) are both integrated on the dilution module (130), the back-blowing gas control solenoid valve (190) and the probe body (180) are connected together through an air pipe, and the fine filter (192) is arranged in the probe body (180).

2. A dilution probe according to claim 1, characterized in that: It also includes a shell (110), the probe bracket (120) is fixed in the shell (110), and the probe body (180) passes through the shell (110).

3. A dilution probe according to claim 1, characterized in that: It also includes a first temperature sensor (160), wherein the first temperature sensor (160) is arranged on the dilution gas pressure transmitter (140).

4. A dilution probe according to claim 1, characterized in that: It also includes a second temperature sensor (170), wherein the second temperature sensor (170) is arranged on the probe body (180).

5. A dilution probe according to claim 1, characterized in that: It also includes a wiring terminal block (191), wherein the wiring terminal block (191) is fixed on the probe bracket (120).

6. A dilution probe according to claim 1, characterized in that: The fine filter (192) is inserted into the probe body (180), a connecting frame (195) is fixedly installed on the outer wall of the probe body (180), a handle (196) is threaded on the connecting frame (195), a filter cover (194) is threadedly sleeved on the fine filter (192), an O-ring (193) is arranged between the filter cover (194) and the fine filter (192), and one end of the handle (196) is fixed on the outer wall of the filter cover (194).

7. A dilution probe according to claim 1, characterized in that: The dilution gas pressure transmitter (140) is provided with a dilution gas port (197), the probe body (180) is provided with a standard gas port (198), the vacuum port pressure transmitter (150) is provided with a sample gas port (199), and the back-blowing gas control solenoid valve (190) is provided with a purge port (1990).

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