Membrane interface detector for VOCs sampling

Abstract

The utility model discloses a membrane interface detector for VOCs sampling, which comprises a mounting cylinder, a detachable MIP probe is arranged in the mounting cylinder, the top of the MIP probe is provided with a wire harness integrated tube, and the wire harness integrated tube penetrates out of the mounting cylinder; a lengthening cylinder is detachably mounted at the top of the mounting cylinder, a locking sleeve is slidably mounted in the lengthening cylinder, and the locking sleeve is in threaded connection with the wire harness integrated pipe; a drill bit is detachably mounted at the bottom of the mounting cylinder, and spiral blades and particle protrusions are arranged on the drill bit. According to the utility model, the modular design is adopted, the dismounting and maintenance are convenient, the MIP probe is not easy to damage, the normal use of the MIP probe is not influenced, the overall length can be increased by the lengthening cylinder, the MIP probe can conveniently go deep into the ground for sampling, and the drill bit is matched with the spiral blade and the particle bulge to improve the dumping efficiency and accelerate the sampling progress.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental remediation technical field especially, a kind of membrane interface detector for VOCs sampling. BACKGROUND

[0002] The existing membrane interface detector is used, generally need to utilize drilling equipment in the soil needing measurement to drill hole in advance, then probe is placed into drill hole, it is more cumbersome to operate like this. Or directly push probe into underground, so that probe is directly contacted with soil, semi-permeable membrane is easily damaged, and cleaning and maintenance are very troublesome in later period. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problems that the prior art exists, and is operated cumbersome, semi-permeable membrane is easily damaged and cleaning and maintenance are troublesome.

[0004] The utility model discloses a kind of membrane interface detectors for VOCs sampling, including installation cylinder, detachable MIP probe is equipped in the installation cylinder, the top of the MIP probe is equipped with wire harness integrated tube, the wire harness integrated tube is worn out the installation cylinder;The top of the installation cylinder is detachably installed with lengthening cylinder, locking sleeve is slidably installed in the lengthening cylinder, the locking sleeve is threadedly connected with the wire harness integrated tube;Drill bit is detachably installed at the bottom of the installation cylinder, and the drill bit is equipped with helical blade and particle protrusion.

[0005] Further, the installation cylinder includes installation cylinder cylinder body in the utility model, the top of the installation cylinder cylinder body is equipped with pressing plate, the bottom of the installation cylinder cylinder body is equipped with internal thread, the inside of the installation cylinder cylinder body is equipped with placing plate, the MIP probe is placed on the placing plate and is fixed by the pressing plate, and the pressing plate is opened with the positioning perforation that the wire harness integrated tube is worn out.

[0006] Further, the MIP probe includes probe shell in the utility model, the side wall of the probe shell has protruding convex part, the convex part is equipped with semi-permeable membrane and heating module, the convex part is connected with air inlet pipe and air outlet pipe, each pipeline is led out by the wire harness integrated tube, the air inlet pipe is connected with carrier gas supply device, and the air outlet pipe is connected with ground detector.

[0007] Further, the side wall of the installation cylinder cylinder body is opened with the installation opening for installing the convex part in the utility model.

[0008] Further, the inside of the lengthening cylinder is opened with the sliding cavity for the locking sleeve to slide in the utility model, the bottom of the sliding cavity is equipped with the jack for the wire harness integrated tube to enter, and the top of the sliding cavity is also equipped with locking positioning groove.

[0009] Further, the lower end of the locking sleeve is threadedly connected with the wire harness integrated tube, and the lower end of the locking sleeve abuts against the bottom of the sliding cavity, a guide hole for pipeline passing out is formed in the inside of the locking sleeve, and the upper end of the locking sleeve is provided with a locking block matched with the locking positioning groove.

[0010] Further, the upper end of the drill bit is provided with external threads matched with internal threads of the bottom of the mounting cylinder.

[0011] Compared with the prior art, the MIP probe is built-in the mounting cylinder, the mounting cylinder, the lengthening cylinder and the drill bit are modularly designed and can be respectively disassembled and installed, the operation is convenient, the MIP probe is not easy to be damaged and normal use is not affected, the lengthening cylinder can increase the overall length, the MIP probe is conveniently deepened into the ground for sampling, the drill bit cooperated with the spiral blade and the particle protrusion can improve the soil removal efficiency and accelerate the sampling progress. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the utility model;

[0013] Figure 2 It is an internal structure schematic view of the utility model;

[0014] Figure 3 It is an exploded view of the utility model;

[0015] Figure 4 It is a specific structure schematic view of the MIP probe in the utility model.

[0016] Wherein: 1, mounting cylinder;101, mounting cylinder cylinder body;101a, mounting opening;102, pressing plate;102a, positioning perforation;103, internal thread;104, placing plate;2, MIP probe;201, probe shell;202, convex part;203, semi-permeable membrane;204, heating module;205, air inlet pipe;206, air outlet pipe;3, wire harness integrated tube;4, lengthening cylinder;4a, sliding cavity;4b, jack;4c, locking positioning groove;5, locking sleeve;5a, guide hole;5b, locking block;6, drill bit;6a, external thread;7, spiral blade;8, particle protrusion;9, carrier gas supply device;10, ground detector. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model is specifically described below in combination with the drawings.

[0018] Embodiment:

[0019] In combination with the specific embodiments of the membrane interface probe for VOCs sampling shown in the drawings, it mainly comprises a mounting cylinder 1, the mounting cylinder 1 comprises a mounting cylinder body 101, the top of the mounting cylinder body 101 is provided with a pressing plate 102, the bottom of the mounting cylinder body 101 is provided with an internal thread 103, and the inside of the mounting cylinder body 101 is provided with two symmetrical placing plates 104.

[0020] The mounting cylinder 1 is provided with a detachable MIP probe 2, the MIP probe 2 is placed on the placing plate 104 and is fixedly pressed by the pressing plate 102, the top of the MIP probe 2 is provided with a wire harness integrated tube 3, and the pressing plate 102 is provided with a positioning perforation 102a for the wire harness integrated tube 3 to pass out.

[0021] Specifically, in combination with Figure 4 , the MIP probe 2 comprises a probe shell 201, the side wall of the probe shell 201 has a protruding convex part 202, the convex part 202 is provided with a semi-permeable membrane 203 and a heating module 204, the convex part 202 is connected with an air inlet pipe 205 and an air outlet pipe 206, each pipeline is led out through the wire harness integrated tube 3, the air inlet pipe 205 is connected with a carrier gas supply device 9, the carrier gas supply device 9 can provide nitrogen, and the air outlet pipe 206 is connected with a ground detector 10.

[0022] The side wall of the mounting cylinder body 101 is provided with a mounting opening 101a for mounting the convex part 202. When the MIP probe 2 is installed, the MIP probe 2 is first placed on the placing plate 104, then the convex part 202 is installed by being aligned with the mounting opening 101a, then the positioning perforation 102a of the pressing plate 102 is aligned with the wire harness integrated tube 3 and is pressed downward, covering the MIP probe 2, and the installation is completed.

[0023] The top of the mounting cylinder 1 is detachably provided with an elongated cylinder 4, the inside of the elongated cylinder 4 is provided with a sliding cavity 4a, the sliding cavity 4a is slidably provided with a locking sleeve 5, the bottom of the sliding cavity 4a is provided with a plug hole 4b for the wire harness integrated tube 3 to pass in, and the top of the sliding cavity 4a is further provided with a locking positioning groove 4c.

[0024] The lower end of the locking sleeve 5 is threadedly connected with the wire harness integrated tube 3 and abuts against the bottom of the sliding cavity 4a, the inside of the locking sleeve 5 is provided with a guide hole 5a for the pipeline to pass out, and the upper end of the locking sleeve 5 is provided with a locking block 5b matched with the locking positioning groove 4c.

[0025] When the elongated cylinder 4 is installed, the wire harness integrated tube 3 is inserted into the plug hole 4b, then the locking sleeve 5 is rotated, the lower end of the locking sleeve 5 is sleeved on the wire harness integrated tube 3 and is threadedly fastened, and at the same time, the locking block 5b at the upper end of the locking sleeve 5 is screwed in the locking positioning groove 4c, and the installation of the elongated cylinder 4 is completed. The pipeline in the wire harness integrated tube 3 can pass out through the guide hole 5a in the inside of the locking sleeve 5 and is connected with the carrier gas supply device 9 and the ground detector 10.

[0026] The bottom of the installation cylinder 1 is detachably installed with a drill bit 6, the upper end of the drill bit 6 is provided with an external thread 6a matched with the internal thread 103 of the bottom of the installation cylinder body 101, and the installation is achieved by screwing.

[0027] In the specific working process of the utility model, the drill bit 6 drills a hole quickly, so that the whole device penetrates into the ground, then the heating module 204 of the MIP probe 2 is used to heat the soil to gasify the organic matter in the soil, the gasified organic matter passes through the semi-permeable membrane 203 and is sent to the surface detector 10 with the carrier gas for detection and analysis, and the surface detector 10 can be one or more of a flame ionization detector FID and a photo ionization detector PID.

[0028] Of course, the above-mentioned embodiments are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable the person skilled in the art to understand the content of the utility model and to implement it, and it cannot limit the protection scope of the utility model. Any modification made according to the spirit and essence of the main technical scheme of the utility model should be covered in the protection scope of the utility model.

Claims

1. A membrane interface detector for VOCs sampling, characterized in that: The device includes an installation cylinder (1), inside which is a detachable MIP probe (2), and a wire harness integrated tube (3) is provided at the top of the MIP probe (2), through which the wire harness integrated tube (3) extends from the installation cylinder (1); an extension cylinder (4) is detachably installed at the top of the installation cylinder (1), and a locking sleeve (5) is slidably installed inside the extension cylinder (4), the locking sleeve (5) being threadedly connected to the wire harness integrated tube (3); a drill bit (6) is detachably installed at the bottom of the installation cylinder (1), and the drill bit (6) is provided with a spiral blade (7) and a particle protrusion (8).

2. The membrane interface detector for VOCs sampling according to claim 1, characterized in that: The mounting cylinder (1) includes a mounting cylinder body (101), a pressure plate (102) is provided at the top of the mounting cylinder body (101), an internal thread (103) is provided at the bottom of the mounting cylinder body (101), a placement plate (104) is provided inside the mounting cylinder body (101), the MIP probe (2) is placed on the placement plate (104) and pressed and fixed by the pressure plate (102), and a positioning through hole (102a) is opened on the pressure plate (102) for the wire harness integrated tube (3) to pass through.

3. The membrane interface detector for VOCs sampling according to claim 2, characterized in that: The MIP probe (2) includes a probe housing (201), the side wall of which has a protruding part (202). The protruding part (202) is provided with a semi-permeable membrane (203) and a heating module (204). The protruding part (202) is connected to an air inlet pipe (205) and an air outlet pipe (206). Each pipeline is led out through the wire harness integrated pipe (3). The air inlet pipe (205) is connected to a carrier gas supply device (9), and the air outlet pipe (206) is connected to a surface detector (10).

4. The membrane interface detector for VOCs sampling according to claim 3, characterized in that: The side wall of the mounting cylinder (101) has a mounting opening (101a) for mounting the protrusion (202).

5. The membrane interface detector for VOCs sampling according to claim 1, characterized in that: The extended tube (4) has a sliding cavity (4a) inside for the locking sleeve (5) to slide. The bottom of the sliding cavity (4a) is provided with an insertion hole (4b) for the wire harness integrated tube (3) to pass through. The top of the sliding cavity (4a) is also provided with a locking positioning groove (4c).

6. The membrane interface detector for VOCs sampling according to claim 5, characterized in that: The lower end of the locking sleeve (5) is threaded to the wire harness integrated tube (3) and the lower end of the locking sleeve (5) abuts against the bottom of the sliding cavity (4a). The inside of the locking sleeve (5) is provided with a guide hole (5a) for the pipeline to pass through. The upper end of the locking sleeve (5) is provided with a locking block (5b) that cooperates with the locking positioning groove (4c).

7. The membrane interface detector for VOCs sampling according to claim 2, characterized in that: The upper end of the drill bit (6) is provided with an external thread (6a) that mates with the internal thread (103) at the bottom of the mounting cylinder (101).

Images