Self-weight type liquid collecting vertical pipe

Abstract

A self-weight type liquid collecting vertical pipe comprises a vertical pipe body and a sealing cap, a bottom seal is arranged at the bottom end of the vertical pipe body, and a drainage window is formed in the portion, above the bottom seal, of the side wall of the vertical pipe body. A sleeve used for blocking the drainage window is arranged, the vertical tube body is sleeved with the sleeve in a sliding mode, and a sealing mechanism is arranged between the lower end of the sleeve and a bottom seal of the vertical tube body. An upper limiting mechanism used for limiting sliding of the sleeve is fixed to the vertical pipe body, and the length of the sleeve meets the requirement that when the top end of the sleeve slides to the upper limiting mechanism, the bottom end of the sleeve is not lower than the upper edge of the drainage window. The sealing cap is fixedly arranged on the vertical pipe body, moves up and down along with the sleeve, and is used for sealing a tank opening of a tank car under the limitation of the upper limiting mechanism during unloading; after unloading is finished, the sealing cap drives the sleeve to slide downwards under the action of gravity during lifting, and sealing is formed between the sealing cap and the bottom seal to block residual liquid in the vertical pipe. The device is reasonable in design, free of manual operation, simple, reliable and capable of automatically collecting residual liquid without power.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid loading and unloading, in particular to a self-weight type liquid collecting vertical pipe. Background Art

[0002] With the national safety supervision and environmental protection, at the end of the loading crane pipe, the inner arm of the pipe is adhered to liquid, some liquid pollutes the environment and corrodes objects, so the requirements for material dripping and liquid contact during loading in the loading and unloading area are becoming more and more stringent. The traditional method of manually hanging liquid barrels increases the labor intensity of operators and has the risk of falling from a high altitude! These are the long-standing problems faced by the petrochemical industry for decades!

[0003] At present, most methods use manual hanging of liquid barrels. There are also newly developed liquid receiving mechanisms, such as the technology disclosed in patent CN202310559378.4. However, most of them are not satisfactory in on-site use. Manual climbing is required to collect the liquid; the outlet of the crane pipe cannot quickly and timely collect the liquid; windy weather is not conducive to the liquid collection device; and the external drive device has many failure problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to propose a self-weight type liquid collecting vertical pipe with reasonable design, simplicity and reliability in view of the deficiencies in the prior art.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions. A self-weight type liquid collecting vertical pipe comprises a vertical pipe body and a sealing cap, and its characteristics are:

[0006] A bottom seal is provided at the bottom end of the vertical pipe body, and a drainage window is opened on the side wall of the vertical pipe body above the bottom seal.

[0007] A sleeve is provided for sealing the drainage window, the sleeve is slidably sleeved on the outside of the vertical pipe body, and a sealing mechanism is provided between the lower end of the sleeve and the bottom seal of the vertical pipe body;

[0008] An upper limit mechanism is fixed on the vertical pipe body for moving the sleeve upward to open the drainage window.

[0009] The sealing cap is fixedly mounted on the vertical pipe body and moves up and down with the sleeve.

[0010] The technical problem to be solved by the utility model can be further achieved by the following technical solution: the length of the sleeve is such that when the top end of the sleeve slides to the upper limit mechanism, the bottom end of the sleeve is not lower than the upper edge of the drainage window;

[0011] The technical problem to be solved by the utility model can also be further achieved through the following technical scheme, the sealing cap is fixedly mounted on the vertical pipe body and moves up and down with the sleeve, and is used to seal with the tank mouth of the tank truck under the limit of the upper limit mechanism during unloading; when the unloading is completed and the lifting is carried out, the sealing cap drives the sleeve to slide downward under the action of gravity, and forms a seal with the bottom seal to seal the residual liquid in the vertical pipe.

[0012] The technical problem to be solved by the utility model can be further achieved through the following technical solution: there are two drainage windows, which are symmetrically arranged on the wall of the vertical tube body.

[0013] The technical problem to be solved by the utility model can be further achieved through the following technical scheme, the bottom seal is configured as a frustum structure which gradually increases downward from the wall of the vertical tube body, the bottom end of the sleeve is provided with an inner groove which cooperates with the above-mentioned frustum structure, and a sealing ring is provided between the frustum structure and the inner groove.

[0014] The technical problem to be solved by the utility model can also be further achieved through the following technical solution: a connecting flange connected to the crane pipe is provided at the upper end of the vertical pipe body.

[0015] The technical problem to be solved by the utility model can be further achieved by the following technical solution: an air return pipe is provided on the sealing cap.

[0016] The technical problem to be solved by the utility model can also be further achieved through the following technical solution: the upper limit mechanism is a clamp structure and is fastened to the vertical pipe body by bolts.

[0017] Compared with the prior art, the utility model realizes automatic plugging of the vertical pipe by driving the sleeve through the deadweight of the sealing cap. It has a reasonable design, does not require manual operation, is simple and reliable, and automatically collects residual liquid without power. 1. It can reduce the labor intensity of personnel; 2. It does not require manual hanging of liquid barrels to ensure the safety of personnel; 3. It prevents the residual liquid in the pipeline from dripping on the ground and causing environmental pollution; 4. It prevents the residual liquid from dripping on pedestrians passing under the vertical pipe and causing personal injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the structural diagram of the utility model;

[0019] Figure 2 This is a cross-sectional view of the sealing cap. DETAILED DESCRIPTION

[0020] The specific technical scheme of the utility model is further described below. In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer and to facilitate the technical personnel in the field to further understand the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments, and does not constitute a limitation on its rights. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0021] A self-weight type liquid collecting vertical pipe, comprising a vertical pipe body 2 and a sealing cap 5.

[0022] A bottom seal 9 is provided at the bottom end of the drop tube body 2, and a drainage window 8 is provided on the side wall of the drop tube body above the bottom seal; a sleeve 6 for sealing the drainage window is provided, and the sleeve is slidably sleeved on the outside of the drop tube body, and a sealing mechanism is provided between the lower end of the sleeve and the bottom seal of the drop tube body;

[0023] An upper limit mechanism 3 for limiting the sliding of the sleeve is fixed on the vertical pipe body. The length of the sleeve is such that when the top of the sleeve slides to the upper limit mechanism, the bottom of the sleeve is not lower than the upper edge of the drainage window.

[0024] The sealing cap is fixedly mounted on the vertical pipe body and moves up and down with the sleeve. When unloading, it is used to seal with the tank mouth of the tank truck under the limit of the upper limit mechanism. When unloading is completed and the tank is lifted, the sealing cap drives the sleeve to slide downward under the action of gravity, and forms a seal with the bottom seal to seal the residual liquid in the vertical pipe.

[0025] There are two drainage windows, which are symmetrically arranged on the wall of the vertical tube body.

[0026] The bottom seal is configured as a frustum structure that gradually increases downward from the wall of the vertical tube body, the bottom end of the sleeve is provided with an inner groove 7 that matches the above frustum structure, and a sealing ring is provided between the frustum structure and the inner groove.

[0027] The upper end of the vertical pipe body is provided with a connecting flange 1 connected to the crane pipe. The sealing cap is provided with a return air pipe 4.

[0028] The upper limit mechanism is a clamp structure and is fastened to the vertical pipe body by bolts, so that the position of the upper limit mechanism can be adjusted conveniently.

[0029] When the drop tube is inserted into the tank mouth, the sealing cap stops moving after contacting the tank mouth, and the drop tube continues to move downward. When the upper limit mechanism contacts the top of the sleeve, the sealing cap is pressed against the tank mouth, and the proximity switch gives a signal, the drop tube stops moving downward, and the drainage window at the bottom of the drop tube is exposed, and loading begins, and the liquid flows out from the drainage window; after completion, the drop tube is lifted upward, and the sealing cap drives the sleeve downward under the action of its own weight, and the lower end of the sleeve is installed to contact and seal with the bottom seal, and under the action of the sealing ring, the residual liquid is sealed in the sleeve, and the residual liquid is placed in the next tank truck during the next loading. The utility model device has a simple and feasible structure, and the movement is accurate and reliable.

Claims

1. A self-weight type liquid collecting vertical pipe, comprising a vertical pipe body and a sealing cap, characterized in that: A bottom seal is provided at the bottom end of the drop tube body, a drainage window is provided on the side wall of the drop tube body above the bottom seal, a sleeve is provided for sealing the drainage window, the sleeve is slidably sleeved on the outside of the drop tube body, a sealing mechanism is provided between the lower end of the sleeve and the bottom seal of the drop tube body; an upper limit mechanism is fixed on the drop tube body for moving the sleeve upward to open the drainage window, the sealing cap is fixedly mounted on the drop tube body and moves up and down with the sleeve.

2. The self-weight type liquid collecting vertical pipe according to claim 1, characterized in that: There are two drainage windows, which are symmetrically arranged on the wall of the vertical tube body.

3. The self-weight type liquid collecting vertical pipe according to claim 1, characterized in that: The length of the sleeve is such that when the top end of the sleeve slides to the upper limit mechanism, the bottom end of the sleeve is not lower than the upper edge of the drainage window.

4. The self-weight type liquid collecting vertical pipe according to claim 1, characterized in that: The bottom seal is configured as a frustum structure that gradually increases downward from the wall of the vertical tube body, the bottom end of the sleeve is provided with an inner groove that matches the above-mentioned frustum structure, and a sealing ring is provided between the frustum structure and the inner groove.

5. The self-weight type liquid collecting vertical pipe according to claim 1, characterized in that: A connecting flange connected to the crane pipe is arranged at the upper end of the vertical pipe body.

6. The self-weight type liquid collecting vertical pipe according to claim 1, characterized in that: The sealing cap is provided with an air return pipe.

7. The self-weight type liquid collecting vertical pipe according to claim 1, characterized in that: The upper limit mechanism is a clamp structure and is fastened to the vertical pipe body by bolts.

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