Sampler for methanol gasoline distillation range characteristic detection

Abstract

The utility model relates to the technical field of methanol gasoline detection, and discloses a sampler for methanol gasoline distillation range characteristic detection, which comprises a sampling tube, a piston block slidably mounted in the sampling tube, a sealing ring arranged on the outer side of the piston block, a connecting rod arranged at the upper end of the piston block, a pull rod arranged at one end of the connecting rod and connected with the piston block. A cleaning mechanism is arranged at the upper end of the dustproof cover; the cleaning mechanism comprises a conveying pipe, the lower end of the conveying pipe extends into the sampling pipe, a control valve is arranged on the outer side of the conveying pipe, a storage bag is arranged at the upper end of the conveying pipe, cleaning gel is arranged in the storage bag, an elastic telescopic pipe is arranged at the lower end of the conveying pipe, the upper end of the elastic telescopic pipe is fixedly connected with the conveying pipe, and the lower end of the elastic telescopic pipe is communicated with an inner cavity of the sampling pipe. According to the sampling device, the cleaning mechanism is arranged, so that the sampling cavity in the sampling pipe can be cleaned, samples are prevented from being left in the sampling pipe, and subsequent use of the sampling device is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of methanol gasoline detection technology, and in particular to a sampler for detecting the distillation range characteristics of methanol gasoline. Background Technology

[0002] The distillation range of methanol gasoline refers to the temperature range during the distillation of methanol gasoline under specific conditions. This process is accomplished by gradually heating the methanol-gasoline mixture and recording the volume percentage of the components distilled at different temperatures. The distillation range provides information about the volatility characteristics of each component in the mixture. A sampler is required during the detection of the distillation range of methanol gasoline.

[0003] Existing samplers for methanol gasoline distillation range testing are inconvenient to clean after use, which can easily lead to some methanol gasoline sample remaining inside the sampler, hindering its subsequent use. To address this, we propose a sampler for detecting the distillation range characteristics of methanol gasoline. Utility Model Content

[0004] The main objective of this invention is to provide a sampler for detecting the distillation range characteristics of methanol gasoline, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sampler for detecting the distillation range characteristics of methanol gasoline, comprising a sampling tube, a scale line on the outside of the sampling tube, a sampling head at the lower end of the sampling tube, a dust cover at the upper end of the sampling tube, a piston block slidably installed inside the sampling tube, a sealing ring on the outside of the piston block, a connecting rod at the upper end of the piston block, the upper end of the connecting rod extending to the outside of the sampling tube, a pull rod at one end of the connecting rod, a cleaning mechanism at the upper end of the dust cover, and the cleaning mechanism being fixedly connected to the dust cover; the cleaning mechanism includes a conveying tube, which is fixedly connected to the dust cover, the lower end of the conveying tube extending into the sampling tube, a control valve on the outside of the conveying tube, a storage bladder at the upper end of the conveying tube, the storage bladder being filled with cleaning gel, an elastic telescopic tube at the lower end of the conveying tube, the upper end of the elastic telescopic tube being fixedly connected to the conveying tube, and the lower end of the elastic telescopic tube passing through the piston block and communicating with the internal cavity of the sampling tube.

[0006] Preferably, the storage bladder is an elastic hollow rubber ball, and the lower end of the storage bladder is fixedly connected to the delivery tube.

[0007] Preferably, the upper end of the storage bladder is provided with a filling tube, the lower end of which is connected to the storage bladder, and a dustproof sealing cap is provided on the outside of the filling tube.

[0008] Preferably, a sealing baffle is provided at one end of the inside of the conveying pipe. The sealing baffle is a rubber elastic sheet, and the outside of the sealing baffle is fixedly connected to the conveying pipe.

[0009] Preferably, the upper end of the sealing baffle is provided with a notch, which is a cross-shaped through groove.

[0010] Preferably, the sampling tube is provided with a handle on the outside, the handle is sleeved on the outside of the sampling tube, the handle is provided with a gripping groove on the outside, and the handle is fixedly connected to the sampling tube on the inside.

[0011] This invention provides a sampler for detecting the distillation range characteristics of methanol gasoline, which has the following advantages:

[0012] 1. This sampler for detecting the distillation range characteristics of methanol gasoline has a cleaning mechanism that can clean the sampling cavity inside the sampling tube, preventing sample residue inside the sampling tube and facilitating subsequent use of the sampling equipment.

[0013] 2. The sampler for detecting the distillation range characteristics of methanol gasoline has a handle on the outside of the sampling tube for easy holding during sampling, and a sealing baffle inside the delivery tube to prevent the cleaning gel inside the storage bladder from flowing into the delivery tube, thus improving protection. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the sampling tube of this utility model;

[0017] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model.

[0018] Legend:

[0019] 1. Sampling tube; 2. Scale line; 3. Sampling head; 4. Dust cover; 5. Piston block; 6. Sealing ring; 7. Pull rod; 8. Connecting rod; 9. Handle; 10. Cleaning mechanism; 11. Delivery tube; 12. Control valve; 13. Storage sac; 14. Cleaning gel; 15. Filling tube; 16. Elastic telescopic tube; 17. Sealing baffle; 18. Cut groove. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Example: A sampler for detecting the distillation range characteristics of methanol gasoline, such as... Figure 1 - Figure 3 As shown, the device includes a sampling tube 1, which is a hollow glass tube with an opening at the top and graduation lines 2 on its outer surface. A sampling head 3, a conical hollow tube, is located at the bottom of the sampling tube 1, with its tip pointing away from the sampling tube 1. The upper end of the sampling head 3 is detachably threaded to the sampling tube 1. A dust cover 4 is located at the top of the sampling tube 1, and its lower end is threaded to the sampling tube 1. A piston block 5, a circular hard block, is located inside the sampling tube 1. The piston block 5 is fitted to the inner wall of the sampling tube 1 and slides inside. A sealing ring 6 is located on the outside of the piston block 5, fitting around its outer edge. The other end of the sealing ring 6 contacts the inner wall of the sampling tube 1. The sealing ring 6 increases the contact between the piston block 5 and the sampling tube 1. To ensure a tight seal at the connection and prevent sample leakage, a connecting rod 8 is provided at the upper end of the piston block 5. The connecting rod 8 is a cylindrical rigid rod, and its lower end is fixedly connected to the piston block 5. The upper end of the connecting rod 8 extends through the dust cover 4 to the outside of the sampling tube 1. A pull rod 7 is provided at the end of the connecting rod 8 located outside the sampling tube 1. The pull rod 7 has a rigid actuating plate, and its lower end is fixedly connected to the connecting rod 8. A handle 9 is provided on the outside of the sampling tube 1. The handle 9 is made of soft, non-slip cotton and is fitted onto the outside of the sampling tube 1. The handle 9 has a groove on its outer side for easy gripping, and its inner side is fixedly bonded to the sampling tube 1. A cleaning mechanism 10 is provided at the upper end of the dust cover 4 and is fixedly connected to the dust cover 4. The lower end of the cleaning mechanism 10 passes through the piston block 5 and communicates with the cavity located at the lower end of the piston block 5 inside the sampling tube 1.

[0022] Furthermore, the cleaning mechanism 10 includes a delivery pipe 11, which is a rigid hollow pipe. The delivery pipe 11 is fixedly connected to the dust cover 4. The lower end of the delivery pipe 11 extends through the dust cover 4 into the sampling tube 1. A control valve 12 is fixedly installed on the outside of the delivery pipe 11. The delivery pipe 11 can be opened and closed by rotating the control valve 12. A storage bladder 13 is provided at the upper end of the delivery pipe 11. The storage bladder 13 is an elastic hollow rubber ball. The lower end of the storage bladder 13 is fixedly connected to the delivery pipe 11. 3. The internal cavity of the storage sac 13 is filled with cleaning gel 14, which is a gel or paste-like cleaning agent. The cleaning gel 14 is evenly filled inside the storage sac 13. The internal cavity of the delivery tube 11 is connected to the inside of the storage sac 13. A filling tube 15 is provided at the upper end of the storage sac 13, and the lower end of the filling tube 15 is fixedly connected to the storage sac 13. A dustproof sealing cap is provided on the outside of the filling tube 15. An elastic telescopic tube 16 is provided at the lower end of the delivery tube 11. The elastic telescopic tube 16 is an elastic and expandable tube. The end is fixedly connected to the delivery pipe 11. The lower end of the elastic telescopic tube 16 passes through the piston block 5 and is connected to the lower cavity of the piston block 5. A sealing baffle 17 is provided at one end of the delivery pipe 11 near the storage bladder 13. The sealing baffle 17 is a rubber elastic sheet. The outer edge of the sealing baffle 17 is fixedly bonded to the inner wall of the delivery pipe 11. A notch 18 is provided at the upper end of the sealing baffle 17. The notch 18 is a cross-shaped notch. After sampling, the sampling personnel first open the control valve 12 and then squeeze the storage bladder. During the compression process, the cleaning gel 14 inside the storage sac 13 will compress the sealing baffle 17. The compression of the sealing baffle 17 will open the slit groove 18, and the cleaning gel 14 will pass through the slit groove 18 and fall into the delivery tube 11. It will then fall into the cavity at the lower end of the sampling tube 1, located in the lower cavity of the piston block 5, through the elastic telescopic tube 16 at the lower end of the delivery tube 11. This cleans the sampling cavity at the lower end of the piston block 5 inside the sampling tube 1, keeping the inside of the sampling tube 1 clean and convenient for subsequent use.

[0023] It should be noted that this utility model is a sampler for detecting the distillation range characteristics of methanol gasoline. In use, first close the control valve 12 to ensure that the cleaning gel 14 inside the storage bladder 13 does not fall into the sampling tube 1. Then, insert the lower end of the sampling head 3 into the methanol gasoline. Next, pull the connecting rod 8 using the pull rod 7. As the connecting rod 8 moves, it drives the piston block 5 to move inside the sampling tube 1. During this movement, the piston block 5 draws the methanol gasoline into the sampling tube 1 through the sampling head 3. After sampling, insert the sampling head 3 into the distillation range device. By squeezing the pull rod 7, the piston block 5 moves, moving the sampling tube 1... The internal sample is squeezed out. After the entire sampling process is completed, the control valve 12 is opened first, and then the storage bladder 13 is squeezed. During the squeezing process, the cleaning gel 14 inside the storage bladder 13 will squeeze the sealing baffle 17. The sealing baffle 17, when squeezed, will open the notch 18, and the cleaning gel 14 will pass through the notch 18 and fall into the delivery tube 11. It will then fall into the cavity below the piston block 5 inside the sampling tube 1 through the elastic telescopic tube 16 at the lower end of the delivery tube 11, thereby cleaning the sampling cavity below the piston block 5 inside the sampling tube 1, keeping the inside of the sampling tube 1 clean, and facilitating subsequent use. By setting up the cleaning mechanism 10, the sampling cavity inside the sampling tube 1 can be cleaned to prevent sample residue from remaining inside the sampling tube 1, thus facilitating subsequent use of the sampling equipment. By providing a handle 9 on the outside of the sampling tube 1, it is convenient to hold the sample during sampling. A sealing baffle 17 is provided inside the delivery tube 11, which can block the flow of the cleaning gel 14 inside the storage sac 13 into the delivery tube 11, thereby improving protection.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sampler for detecting the distillation range characteristics of methanol gasoline, comprising a sampling tube (1), a scale line (2) on the outer side of the sampling tube (1), a sampling head (3) at the lower end of the sampling tube (1), a dust cover (4) at the upper end of the sampling tube (1), a piston block (5) slidably installed inside the sampling tube (1), a sealing ring (6) on the outer side of the piston block (5), a connecting rod (8) at the upper end of the piston block (5), the upper end of the connecting rod (8) extending to the outer side of the sampling tube (1), and a pull rod (7) at one end of the connecting rod (8), characterized in that: The upper end of the dust cover (4) is provided with a cleaning mechanism (10), which is fixedly connected to the dust cover (4). The cleaning mechanism (10) includes a delivery pipe (11), which is fixedly connected to the dust cover (4). The lower end of the delivery pipe (11) extends into the sampling tube (1). A control valve (12) is provided on the outside of the delivery pipe (11). A storage sac (13) is provided at the upper end of the delivery pipe (11). The storage sac (13) is filled with cleaning gel (14). An elastic telescopic tube (16) is provided at the lower end of the delivery pipe (11). The upper end of the elastic telescopic tube (16) is fixedly connected to the delivery pipe (11). The lower end of the elastic telescopic tube (16) passes through the piston block (5) and communicates with the internal cavity of the sampling tube (1).

2. The sampler for detecting the distillation range characteristics of methanol gasoline according to claim 1, characterized in that: The storage bladder (13) is an elastic hollow rubber ball, and the lower end of the storage bladder (13) is fixedly connected to the delivery pipe (11).

3. A sampler for detecting the distillation range characteristics of methanol gasoline according to claim 2, characterized in that: The upper end of the storage bladder (13) is provided with a filling tube (15), the lower end of the filling tube (15) is connected to the storage bladder (13), and the outside of the filling tube (15) is provided with a dustproof sealing cap.

4. A sampler for detecting the distillation range characteristics of methanol gasoline according to claim 1, characterized in that: The conveying pipe (11) has a sealing baffle (17) at one end. The sealing baffle (17) is a rubber elastic sheet, and the outer side of the sealing baffle (17) is fixedly connected to the conveying pipe (11).

5. A sampler for detecting the distillation range characteristics of methanol gasoline according to claim 4, characterized in that: The sealing baffle (17) has a notch (18) at its upper end, and the notch (18) is a cross-shaped through groove.

6. A sampler for detecting the distillation range characteristics of methanol gasoline according to claim 1, characterized in that: The sampling tube (1) is provided with a handle (9) on the outside. The handle (9) is sleeved on the outside of the sampling tube (1). The handle (9) is provided with a grip groove on the outside. The handle (9) is fixedly connected to the sampling tube (1) on the inside.

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