Heat preservation type filtering pretreatment system

Abstract

The utility model discloses a heat preservation type filtering pretreatment system. The heat preservation type filtering pretreatment system comprises a box body, a sample inlet, a sample return opening, a sample outlet, two filters, two input pipelines, two output pipelines, a collecting pipe, a vaporization pressure reducing valve and two sample return pipes, according to the utility model, the two filters are arranged, and when one filter is maintained, the other filter is used for filtering, so that the system can be always in a working state, and the sample can be effectively vaporized.

Description

Technical Field

[0001] The utility model relates to the technical field of sample filtering and vaporization processing, in particular to a heat preservation type filtering pre-processing system. Background Art

[0002] In industry, some samples need to be vaporized and then transported to an analyzer for analysis. This step currently uses a sample pretreatment system to vaporize the samples. However, the overall structure of the sample pretreatment system is complex and it only has a single filter module. It cannot be operated during maintenance, which affects the analysis. Summary of the invention

[0003] According to an embodiment of the utility model, a heat preservation type filtration pretreatment system is provided, comprising: a box, a sample inlet, a sample return port, a sample outlet, two filters, two input pipes, two output pipes, a manifold, a vaporization pressure reducing valve and two sample return pipes;

[0004] The sample inlet, sample return port and sample outlet are opened on the box body;

[0005] Two filters are respectively arranged on both sides of the inner top of the box;

[0006] The input ends of the two input pipelines are connected to the sample inlet, the output ends of the two input pipelines are connected to the input ends of the two filters respectively, and the two input pipelines are provided with a first ball valve for controlling the on-off thereof;

[0007] The input ends of the two output pipelines are respectively connected to the sample output ends of the two filters, and the two output pipelines are both provided with a second ball valve for controlling the on-off thereof;

[0008] The input end of the manifold is connected to the output ends of the two output pipes, and the output end is connected to the sample outlet. A third ball valve for controlling the on-off of the manifold is provided on the manifold;

[0009] The vaporizing pressure reducing valve is connected to the manifold;

[0010] The input ends of the two sample return pipes are respectively connected to the sample return output ends of the two filters, and the output ends of the two sample return pipes are connected to the sample return ports. The two sample return pipes are provided with a fourth ball valve for controlling their on and off.

[0011] Furthermore, it also comprises: two secondary filters, and the two secondary filters are respectively connected to the two output pipes.

[0012] Further, it also includes: a purge main line, a control valve, two branch lines, two one-way valves and two three-way valves;

[0013] One end of the purge main line is connected to an external nitrogen source, and the other end is inserted into the box;

[0014] The control valve is connected to the main purge line;

[0015] One end of the two branch pipelines is connected to the purge main pipeline, and the other end of the two branch pipelines is connected to two input pipelines respectively. The two branch pipelines are both provided with a fifth ball valve for controlling the on-off thereof;

[0016] Two one-way valves are respectively connected to two branch pipelines;

[0017] The two three-way valves are respectively connected to the two output pipelines, and the two three-way valves are both connected to the sample return port.

[0018] Furthermore, it also includes: a steam heater, which is arranged at the inner bottom end of the box body.

[0019] Furthermore, it also includes: a temperature detector, which is connected to the box and is used to detect the temperature inside the box.

[0020] Further, it also includes: a detection tube, a pressure transmitter;

[0021] One end of the detection tube is connected to the manifold, and a sixth ball valve for controlling the on-off of the detection tube is provided on the detection tube;

[0022] The pressure transmitter is arranged on the outer wall of the box body and is communicated with the other end of the detection tube.

[0023] According to an embodiment of the utility model, a heat-insulating filtering pretreatment system has two filters. When one of the filters is under maintenance, the other filter can be used for filtering, thereby ensuring that the system can always be in working condition and can effectively vaporize the sample.

[0024] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a heat preservation type filtering pretreatment system according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0027] First, combine Figure 1 A heat preservation type filtration pretreatment system according to an embodiment of the utility model is described, which is used for filtering and vaporizing samples and has a wide range of application scenarios.

[0028] like Figure 1 As shown, an insulation type filtration pretreatment system of an embodiment of the utility model comprises a box body 1, a sample inlet 11, a sample return port 12, a sample outlet 13, two filters 2, two input pipes 3, two output pipes 4, a conduit 5, a vaporization pressure reducing valve 6 and two sample return pipes 7.

[0029] Specifically, Figure 1 As shown, a sample inlet 11, a sample return port 12, and a sample outlet 13 are provided on the box body 1 for inputting untreated samples, returning untreated samples, and outputting filtered and gasified samples, respectively.

[0030] Specifically, Figure 1 As shown, two filters 2 are respectively arranged on both sides of the inner top of the box body 1 for filtering samples.

[0031] Specifically, Figure 1 As shown, the input ends of the two input pipes 3 are connected to the sample inlet 11, the output ends of the two input pipes 3 are respectively connected to the input ends of the two filters 2, and the two input pipes 3 are provided with a first ball valve 31 for controlling the opening and closing thereof.

[0032] Specifically, Figure 1 As shown, the input ends of the two output pipes 4 are respectively connected to the sample output ends of the two filters 2 , and the two output pipes 4 are both provided with a second ball valve 41 for controlling the on-off thereof.

[0033] Specifically, Figure 1 As shown, the input end of the manifold 5 is connected to the output ends of the two output pipes 4, and the output end is connected to the sample outlet 13. The manifold 5 is provided with a third ball valve 51 for controlling its on-off;

[0034] Specifically, Figure 1 As shown, the vaporization pressure reducing valve 6 is connected to the manifold 5 for vaporizing the sample.

[0035] Specifically, Figure 1 As shown, the input ends of the two sample return tubes 7 are respectively connected to the sample return output ends of the two filters 2, and the output ends of the two sample return tubes 7 are both connected to the sample return port 12. The two sample return tubes 7 are both provided with a fourth ball valve 71 for controlling the on-off thereof.

[0036] Further, if Figure 1 As shown, a heat preservation type filtration pretreatment system further comprises: two secondary filters 8, the two secondary filters 8 are respectively connected to the two output pipes 4, and are used for secondary filtration of the sample to ensure the filtering effect.

[0037] Further, if Figure 1As shown, a heat preservation type filtration pretreatment system also includes: a purge main line 91, a control valve 92, two branch lines 93, two one-way valves 94 and two three-way valves 95. One end of the purge main line 91 is connected to an external nitrogen source, and the other end is inserted into the box 1; the control valve 92 is connected to the purge main line 91; one end of the two branch lines 93 is connected to the purge main line 91, and the other ends of the two branch lines 93 are respectively connected to the two input pipelines 3, and the two branch lines 93 are provided with a fifth ball valve 931 for controlling the opening and closing thereof; the two one-way valves 94 are respectively connected to the two branch lines 93; the two three-way valves 95 are respectively connected to the two output pipelines 4, and the two three-way valves 95 are both connected to the sample return port 12. When it is necessary to purge the internal pipeline, close the two first ball valves 31 to close the two input pipelines 3, adjust the two three-way valves 95 to connect the two output pipelines 4 with the sample return port 12 and no longer connect with the manifold 5, and then input nitrogen. The nitrogen passes through the purge main pipeline 91 and the two branch pipelines 93 and enters the filter 2 from the two input pipelines 3. One way is from the sample return output end of the filter 2 and finally purged back to the sample return port 12 through the two sample return pipes 7. The other way is from the sample output end of the filter 2 and finally purged back to the sample return port 12 through the three-way valve 95 of the output pipeline 4. The purging process is completed. It can be purged individually or both together.

[0038] Further, if Figure 1 As shown, a heat preservation type filtering pretreatment system further comprises: a steam heater 96 , which is arranged at the inner bottom end of the box body 1 and is used for heating the inside of the box body 1 .

[0039] Further, if Figure 1 As shown, a heat preservation type filtering pretreatment system further comprises: a temperature detector 97 , which is connected to the box 1 and is used to detect the temperature inside the box 1 .

[0040] Further, if Figure 1 As shown, a heat-insulating filtration pretreatment system also includes: a detection tube 98 and a pressure transmitter 99; one end of the detection tube 98 is connected to the manifold 5, and a sixth ball valve 981 for controlling the on-off of the detection tube 98 is provided on the detection tube 98; the pressure transmitter 99 is arranged on the outer wall of the box body 1 and is connected to the other end of the detection tube 98.

[0041] In the present application, the handles of each valve are installed outside the box 1 to facilitate control.

[0042] Working principle: The sample enters the input pipe 3 through the sample inlet 11, and then enters one of the filters 2 for filtration. The filtered sample is transported from the output pipe 4, filtered by the secondary filter 8, and then enters the manifold 5, and then vaporized by the vaporization pressure reducing valve 6, and finally discharged from the sample outlet 13. Part of the unfiltered sample will return to the sample return port 12 through the sample return pipe 7.

[0043] Above, refer to Figure 1 A heat-insulating filtration pretreatment system according to an embodiment of the utility model is described, which has two filters 2. When one of the filters is repaired, the other filter 2 can be used for filtering, ensuring that the system can always be in working condition and can effectively vaporize the sample.

[0044] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A heat preservation type filtration pretreatment system, characterized in that: It includes: a box, a sample inlet, a sample return port, a sample outlet, two filters, two input pipes, two output pipes, a manifold, a vaporization pressure reducing valve and two sample return pipes; The sample inlet, the sample return port, and the sample outlet are provided on the box body; The two filters are respectively arranged on both sides of the inner top of the box; The input ends of the two input pipelines are connected to the sample inlet, the output ends of the two input pipelines are connected to the input ends of the two filters respectively, and the two input pipelines are provided with a first ball valve for controlling the on-off thereof; The input ends of the two output pipelines are respectively connected to the sample output ends of the two filters, and the two output pipelines are each provided with a second ball valve for controlling the on-off thereof; The input end of the manifold is connected to the output ends of the two output pipes, and the output end is connected to the sample outlet. The manifold is provided with a third ball valve for controlling its on-off; The vaporization pressure reducing valve is in communication with the manifold; The input ends of the two sample return tubes are respectively connected to the sample return output ends of the two filters, the output ends of the two sample return tubes are both connected to the sample return port, and the two sample return tubes are both provided with a fourth ball valve for controlling the on-off thereof.

2. A heat preservation type filtration pretreatment system as claimed in claim 1, characterized in that: It also comprises: two secondary filters, and the two secondary filters are respectively connected with the two output pipes.

3. A heat preservation type filtration pretreatment system as claimed in claim 1, characterized in that: It also includes: a purge main line, a control valve, two branch lines, two one-way valves and two three-way valves; One end of the purge main line is connected to an external nitrogen source, and the other end is inserted into the box; The control valve is in communication with the main purge line; One end of the two branch pipelines is connected to the main purge pipeline, and the other end of the two branch pipelines is communicated with the two input pipelines respectively, and the two branch pipelines are both provided with a fifth ball valve for controlling the opening and closing thereof; The two one-way valves are respectively connected to the two branch pipelines; The two three-way valves are communicated with the two output pipelines respectively, and the two three-way valves are both communicated with the sample return port.

4. A heat preservation type filtration pretreatment system as claimed in claim 1, characterized in that: It also includes a steam heater, which is arranged at the inner bottom end of the box body.

5. A heat preservation type filtration pretreatment system as claimed in claim 1 or 4, characterized in that: It also includes a temperature detector, which is connected to the box and is used to detect the temperature inside the box.

6. A heat preservation type filtration pretreatment system as claimed in claim 1, characterized in that: Also includes: detection tube, pressure transmitter; One end of the detection tube is connected to the manifold, and a sixth ball valve for controlling the on-off of the detection tube is provided on the detection tube; The pressure transmitter is arranged on the outer wall of the box body and is communicated with the other end of the detection tube.

Images