Self-retracting heated liquid loading / unloading crane hose

Abstract

The present application relates to the technical field of loading and unloading swivel, and discloses a loading and unloading swivel capable of automatically recycling residual liquid and heating, which comprises a vertical pipe and a rotary bucket, the vertical pipe is connected with a driving mechanism, the rotary bucket is provided with a double-layer bucket, the double-layer bucket is internally provided with a steam flow channel for heating steam flow, the double-layer bucket is provided with an air inlet pipe for connecting steam and an air outlet pipe for discharging steam, the air outlet pipe and the air inlet pipe are connected through the steam flow channel; the double-layer bucket is provided with a liquid outlet pipe, the liquid outlet pipe is provided with a flow control rod; the vertical pipe drives the rotary bucket to drive the double-layer bucket to move to the position below the vertical pipe to receive residual liquid through the driving mechanism, the double-layer bucket introduces steam into the steam flow channel through the air inlet pipe to heat the whole double-layer bucket, so as to avoid the cooling and solidification of the residual liquid received in the double-layer bucket, which causes the residual liquid to be unable to be concentrated and recycled, the structure is simple and practical, the double-layer bucket discharges the residual liquid through the liquid outlet pipe, and the liquid outlet pipe controls the flow of the residual liquid discharged from the liquid outlet pipe and prevents the liquid outlet pipe from being blocked through the flow control rod.

Description

Technical Field

[0001] This invention relates to the technical field of loading arms, and more specifically, to a liquid loading arm capable of automatically recovering residual liquid and heating it. Background Technology

[0002] An arm is a retractable and movable pipe, mostly used for loading and unloading liquids such as asphalt and tar. To ensure loading and unloading safety and avoid splashing of asphalt or tar, the arm is used for this purpose.

[0003] During the loading process, the lower end of the vertical pipe in the loading arm, which transports liquid, must be submerged in the tanker. However, after the tanker is loaded, during the process of pulling out and resetting the vertical pipe, residual liquid adhering to the outer wall of the vertical pipe, as well as residual liquid left after the liquid is transported inside the vertical pipe, will flow down from inside and outside the vertical pipe and scatter on the ground or loading platform. Asphalt or tar is liquid at high temperature and solidifies after cooling. Therefore, the residual asphalt or tar after cooling will solidify, causing environmental pollution and waste. At the same time, the scattered asphalt and tar also pose a great safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid loading arm that can automatically recover residual liquid and heat it, in order to solve the problem in the prior art that residual liquid left inside and outside the loading arm will flow down and scatter on the ground or loading platform, and will solidify, causing environmental pollution and waste.

[0005] This invention is implemented as follows: a liquid loading arm capable of automatically recovering and heating residual liquid includes a vertical pipe for transporting liquid and a rotating bucket installed below the vertical pipe. A drive mechanism is connected to the vertical pipe to move the rotating bucket to or away from the liquid outlet in the vertical pipe. The rotating bucket has a double-layered hopper for receiving residual liquid dripping from the vertical pipe and for heating the residual liquid. The double-layered hopper has a steam flow channel for heating, and an inlet pipe for external steam connection and an outlet pipe for discharging steam are provided on the double-layered hopper. The outlet pipe and the inlet pipe are connected through the steam flow channel.

[0006] The double-layered hopper is equipped with a discharge pipe for discharging residual liquid. The top of the discharge pipe abuts against the bottom of the double-layered hopper and is connected to the double-layered hopper. The bottom of the discharge pipe penetrates the rotating hopper from top to bottom and is exposed outside the rotating hopper. The discharge pipe is equipped with a flow control rod to control the flow rate of residual liquid discharged from the discharge pipe and to prevent the discharge pipe from becoming blocked. The flow control rod is sealed between the discharge pipe and the double-layered hopper.

[0007] Furthermore, the outlet pipe includes a hollow longitudinal pipe and a transverse pipe, the top of the transverse pipe being located on the bottom of the longitudinal pipe and connected to the longitudinal pipe, the top of the longitudinal pipe abutting against the bottom of the double-layer hopper; the flow control rod extends from the top of the longitudinal pipe to the bottom of the transverse pipe.

[0008] Furthermore, the flow control rod includes a plugging rod that rotates up and down and a plugging cap. The plugging cap is located on the top of the plugging rod and plugs the connection between the outlet pipe and the double-layer hopper. The diameter of the plugging rod gradually decreases from the top to the bottom. The outer periphery of the plugging rod has a scraper for scraping the residual liquid on the inner wall of the longitudinal pipe. The scraper extends from the top to the bottom of the plugging rod.

[0009] The bottom of the sealing rod has an operating rod that drives the sealing rod to rotate up and down. The operating rod passes through the middle of the longitudinal tube to the bottom of the transverse tube and is threadedly connected to the transverse tube.

[0010] Furthermore, the longitudinal tube has a hollow cavity arranged in a hollow manner, and there is a spaced interval region between the hollow cavity and the sealing rod. The scraper is located in the spaced interval region, the outer end of the scraper abuts against the inner sidewall of the hollow cavity, and the inner end of the scraper abuts against the outer periphery of the sealing rod.

[0011] Furthermore, the upper part of the operating rod is located inside the longitudinal tube and the transverse tube, the lower part of the operating rod is exposed outside the transverse tube, and the lower part of the operating rod is provided with a nut for driving the operating rod to rotate up and down.

[0012] Furthermore, the double-layer hopper includes an outer hopper and an inner hopper for receiving residual liquid from the vertical pipe. The outer hopper has a heating chamber, and the inner hopper is located in the heating chamber. The outer periphery of the inner hopper and the inner wall of the heating chamber are spaced apart, and the spaced arrangement forms the steam flow channel.

[0013] Furthermore, the air inlet pipe and the air outlet pipe respectively pass through the outer hopper and are connected to the steam flow channel, and the air inlet pipe and the air outlet pipe are arranged opposite to each other.

[0014] Furthermore, the rotating bucket has a placement cavity with a top opening, and the double-layer bucket is located in the placement cavity; positioning grooves for positioning the air inlet pipe and the air outlet pipe are respectively provided on both sides of the top opening of the rotating bucket, and the positioning grooves are connected to the placement cavity.

[0015] Furthermore, the rotating bucket is provided with a connector, which abuts against the outer periphery of the rotating bucket. The connector is located between the air inlet pipe and the air outlet pipe, and the rotating bucket is connected to the drive mechanism through the connector.

[0016] Furthermore, the outer hopper is provided with an edge plate on its outer periphery to prevent residual liquid from overflowing or splashing. The edge plate is arranged to bend outwards and surrounds the top outer periphery of the outer hopper to form an overflow prevention area located above the inner hopper with an open top. The inner hopper has a collection chamber that receives residual liquid from the vertical pipe and has an open top. The collection chamber is connected to the overflow prevention area.

[0017] Compared with the prior art, the liquid loading and unloading arm provided by the present invention can automatically recover and heat residual liquid. The vertical pipe drives the rotating bucket through the drive mechanism to move the double-layer bucket to the bottom of the vertical pipe to receive the residual liquid. The double-layer bucket uses the air inlet pipe to introduce steam into the steam flow channel to heat the entire double-layer bucket, so as to avoid the residual liquid in the double-layer bucket from cooling and solidifying, which would prevent the residual liquid from being collected and reused. The structure is simple and practical. The residual liquid is discharged from the double-layer bucket through the liquid outlet pipe. The liquid outlet pipe uses a flow control rod to control the flow rate of residual liquid discharged from the liquid outlet pipe and to prevent the liquid outlet pipe from being blocked. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the liquid loading arm that can automatically recover residual liquid and heat it, provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the drive mechanism and rotating bucket provided by the present invention;

[0020] Figure 3 This is a top view of the drive mechanism and rotating bucket provided by the present invention;

[0021] Figure 4 This is a cross-sectional structural diagram of the double-layer bucket provided by the present invention.

[0022] In the diagram: vertical pipe 100, drive mechanism 200, rotating bucket 300, double-layer bucket 400, liquid outlet pipe 500, flow control rod 600, edge plate 700, positioning groove 301, connector 302, steam flow channel 401, air inlet pipe 402, air outlet pipe 403, outer bucket 404, inner bucket 405, longitudinal pipe 501, transverse pipe 502, sealing rod 601, sealing cap 602, scraper 603, operating rod 604, overflow prevention area 701. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0025] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0027] A liquid loading arm capable of automatically recovering and heating residual liquid includes a vertical pipe 100 for conveying liquid and a rotating bucket 300 installed below the vertical pipe 100. A drive mechanism 200 is connected to the vertical pipe 100 to drive the rotating bucket 300 to move to or away from the liquid outlet in the vertical pipe 100. The rotating bucket 300 is provided with a double-layer bucket 400 for receiving residual liquid dripping from the vertical pipe 100 and for heating the residual liquid. The double-layer bucket 400 has a steam flow channel 401 for heating by steam flow inside. The double-layer bucket 400 is provided with an air inlet pipe 402 for external steam connection and an air outlet pipe 403 for discharging steam. The air outlet pipe 403 and the air inlet pipe 402 are connected through the steam flow channel 401.

[0028] The double-layer hopper 400 is provided with an outlet pipe 500 for discharging residual liquid from the double-layer hopper 400. The top of the outlet pipe 500 abuts against the bottom of the double-layer hopper 400 and is connected to the double-layer hopper 400. The bottom of the outlet pipe 500 passes through the rotating hopper 300 from top to bottom and is exposed outside the rotating hopper 300. The outlet pipe 500 is provided with a flow control rod 600 for controlling the flow rate of residual liquid discharged from the outlet pipe 500 and preventing the outlet pipe 500 from being blocked. The flow control rod 600 is sealed between the outlet pipe 500 and the double-layer hopper 400.

[0029] The liquid loading arm with automatic residual liquid recovery and heating provided above has a vertical pipe 100 that drives a rotating bucket 300 via a drive mechanism 200 to move a double-layer bucket 400 below the vertical pipe 100 to collect residual liquid. The double-layer bucket 400 uses an air inlet pipe 402 to introduce steam into a steam flow channel 401 to heat the entire double-layer bucket 400, preventing the residual liquid collected in the double-layer bucket 400 from cooling and solidifying, which would prevent the residual liquid from being collected and reused. This structure is simple and practical, and solves the problem that residual liquid left inside and outside the loading arm will flow down and scatter on the ground or loading platform, and will solidify, causing environmental pollution and waste.

[0030] The double-layer hopper 400 discharges residual liquid through the outlet pipe 500. The outlet pipe 500 uses a flow control rod 600 to control the flow rate of residual liquid discharged from the outlet pipe 500 and to prevent the outlet pipe 500 from becoming blocked. Furthermore, the rotating hopper 300 can keep the double-layer hopper 400 warm and isolated, increasing the protection of the double-layer hopper 400.

[0031] The outlet pipe 500 includes a hollow longitudinal pipe 501 and a transverse pipe 502. The top of the transverse pipe 502 is located on the bottom of the longitudinal pipe 501, and the transverse pipe 502 is connected to the longitudinal pipe 501. The top of the longitudinal pipe 501 abuts against the bottom of the double-layer hopper 400. The flow control rod 600 extends from the top of the longitudinal pipe 501 to the bottom of the transverse pipe 502. Thus, when the flow control rod 600 opens the connection between the outlet pipe 500 and the double-layer hopper 400, the residual liquid in the double-layer hopper 400 will not directly permeate to the outside along the flow control rod 600, but will be discharged to the outside through the transverse pipe 502.

[0032] In this embodiment, the flow control rod 600 includes a plugging rod 601 that can rotate up and down and a plugging cap 602. The plugging cap 602 is located on the top of the plugging rod 601 and is plugged at the communication position between the liquid outlet pipe 500 and the double-layer hopper 400. The diameter of the plugging rod 601 gradually decreases from the top to the bottom of the plugging rod 601. The outer periphery of the plugging rod 601 has a scraper 603 for scraping the residual liquid on the inner wall of the longitudinal pipe 501. The scraper 603 extends along the top to the bottom of the plugging rod 601.

[0033] The bottom of the plugging rod 601 has an operating rod 604 that drives the plugging rod 601 to rotate up and down. The operating rod 604 passes through the middle of the longitudinal tube 501 to the bottom of the transverse tube 502 and is threadedly connected to the transverse tube 502.

[0034] The sealing rod 601 is driven by the operating lever 604 to control the sealing cap 602 to disengage from the communication position between the longitudinal pipe 501 and the double-layer hopper 400, so that the residual liquid in the double-layer hopper 400 flows into the longitudinal pipe 501. During the up-and-down rotation of the sealing rod 601, the sealing rod 601 drives the scraper 603 to scrape off the residual liquid on the inner wall of the longitudinal pipe 501, preventing the residual liquid from adhering to the longitudinal pipe 501 and affecting the discharge of the residual liquid to the outside of the longitudinal pipe 501.

[0035] The longitudinal tube 501 has a hollow cavity, and there are spaced intervals between the hollow cavity and the sealing rod 601. The scraper 603 is located in the spaced intervals, with the outer end of the scraper 603 abutting against the inner wall of the hollow cavity and the inner end of the scraper 603 abutting against the outer periphery of the sealing rod 601. In this way, the scraper 603 can increase the thorough cleaning of the hollow cavity in the longitudinal tube 501 and prevent residual liquid from adhering to the longitudinal tube 501.

[0036] The upper part of the operating lever 604 is located inside the longitudinal tube 501 and the transverse tube 502, and the lower part of the operating lever 604 is exposed outside the transverse tube 502. The lower part of the operating lever 604 is provided with a nut for driving the operating lever 604 to rotate up and down. In this way, it is convenient to drive the operating lever 604 to rotate up and down in the transverse tube 502 by the nut.

[0037] In this embodiment, the double-layer hopper 400 includes an outer hopper 404 and an inner hopper 405 for receiving residual liquid from the vertical pipe 100. The outer hopper 404 has a heating chamber, and the inner hopper 405 is located in the heating chamber. The outer periphery of the inner hopper 405 and the inner sidewall of the heating chamber are spaced apart to form a steam flow channel 401.

[0038] The double-layer hopper 400 forms a steam flow channel 401 through the gap between the inner hopper 405 and the outer hopper 404. The steam flow channel 401 is heated by the passage of external steam, so that the inner hopper 405 is heated and the residual liquid in the inner hopper 405 is kept in a high temperature liquid state, so as to prevent the residual liquid from cooling and solidifying and damaging the equipment.

[0039] The inlet pipe 402 and the outlet pipe 403 respectively pass through the outer hopper 404 and are connected to the steam flow channel 401, and the inlet pipe 402 and the outlet pipe 403 are arranged opposite to each other; in this way, it is convenient to increase the distance of steam flow in the steam flow channel 401 and to increase the uniform heating of the inner hopper 405, so that the residual liquid in the inner hopper 405 will not solidify and block the liquid outlet pipe 500 due to uneven heating.

[0040] The rotating bucket 300 has a placement cavity with a top opening, and the double-layer bucket 400 is located in the placement cavity. The top opening of the rotating bucket 300 is provided with positioning grooves 301 on both sides for positioning the air inlet pipe 402 and the air outlet pipe 403, and the positioning grooves 301 are connected to the placement cavity. When the double-layer bucket 400 is located in the placement cavity, it is convenient for the rotating bucket 300 to keep the double-layer bucket 400 warm and isolated. The double-layer bucket 400 and the rotating bucket 300 can be connected movably or fixedly, depending on the requirements.

[0041] The rotating bucket 300 uses two positioning slots 301 to position and install the air inlet pipe 402 and the air outlet pipe 403 respectively, so as to prevent the double-layer bucket 400 from deviating or detaching when the rotating bucket 300 drives the double-layer bucket 400 to move.

[0042] In this embodiment, the rotating bucket 300 is provided with a connector 302, which abuts against the outer periphery of the rotating bucket 300. The connector 302 is located between the air inlet pipe 402 and the air outlet pipe 403. The rotating bucket 300 and the drive mechanism 200 are connected through the connector 302.

[0043] Controlling the movement of the rotating bucket 300 via the connector 302 increases the safety of the rotating bucket 300 during movement, preventing the rotating bucket 300 from failing to move precisely below the liquid outlet in the vertical tube 100, thus avoiding the inability to fully collect the spilled residual liquid.

[0044] In this embodiment, the outer hopper 404 is provided with an edge plate 700 on its outer periphery to prevent residual liquid from overflowing or splashing. The edge plate 700 is arranged to bend outward and surrounds the outer periphery of the top of the outer hopper 404 to form an overflow prevention area 701 located above the inner hopper 405 and open at the top. The inner hopper 405 has a collection chamber that receives residual liquid from the vertical pipe 100 and is open at the top. The collection chamber is connected to the overflow prevention area 701.

[0045] The overflow prevention area 701 formed by the outward bending of the edge plate 700 can prevent the inner hopper 405 from overflowing due to insufficient capacity when receiving residual liquid scattered from the vertical pipe 100. The overflow prevention area 701 can also prevent residual liquid from splashing out of the inner hopper 405, thus avoiding injury to personnel due to residual liquid splashing.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid loading arm capable of automatically recovering residual liquid and heating it, characterized in that, The device includes a vertical pipe for conveying liquid and a rotating bucket installed below the vertical pipe. A drive mechanism is connected to the vertical pipe to move the rotating bucket to or away from the liquid outlet in the vertical pipe. The rotating bucket has a double-layered hopper for receiving residual liquid dripping from the vertical pipe and for heating the residual liquid. The double-layered hopper has a steam flow channel for heating by steam flow. The double-layered hopper has an inlet pipe for external steam and an outlet pipe for discharging steam. The outlet pipe and the inlet pipe are connected by the steam flow channel. The double-layered hopper is equipped with a discharge pipe for discharging residual liquid. The top of the discharge pipe abuts against the bottom of the double-layered hopper and is connected to the double-layered hopper. The bottom of the discharge pipe penetrates the rotating hopper from top to bottom and is exposed outside the rotating hopper. The discharge pipe is equipped with a flow control rod to control the flow rate of residual liquid discharged from the discharge pipe and to prevent the discharge pipe from becoming blocked. The flow control rod is sealed between the discharge pipe and the double-layered hopper. The rotating bucket has a placement cavity with a top opening, and the double-layer bucket is located in the placement cavity; the top opening of the rotating bucket is provided with positioning grooves on both sides for positioning the air inlet pipe and the air outlet pipe, and the positioning grooves are connected to the placement cavity; The rotating bucket is provided with a connector, which abuts against the outer periphery of the rotating bucket. The connector is located between the air inlet pipe and the air outlet pipe. The rotating bucket is connected to the drive mechanism through the connector. The double-layer hopper includes an outer hopper and an inner hopper for receiving residual liquid from the vertical pipe. The outer hopper has a heating chamber, and the inner hopper is located in the heating chamber. The outer periphery of the inner hopper and the inner wall of the heating chamber are spaced apart, and the spaced arrangement forms the steam flow channel. The outer hopper is provided with an edge plate on its outer periphery to prevent residual liquid from overflowing or splashing. The edge plate is arranged to bend outwards and surrounds the top outer periphery of the outer hopper to form an overflow prevention area located above the inner hopper with an open top. The inner hopper has a collection chamber that receives residual liquid from the vertical pipe and has an open top. The collection chamber is connected to the overflow prevention area.

2. The liquid loading arm with automatic residual liquid recovery and heating as described in claim 1, characterized in that, The outlet pipe includes a hollow longitudinal pipe and a transverse pipe. The top of the transverse pipe is located on the bottom of the longitudinal pipe and is connected to the longitudinal pipe. The top of the longitudinal pipe abuts against the bottom of the double-layer hopper. The flow control rod extends from the top of the longitudinal pipe to the bottom of the transverse pipe.

3. The liquid loading arm with automatic residual liquid recovery and heating as described in claim 2, characterized in that, The flow control rod includes a plugging rod that rotates up and down and a plugging cap. The plugging cap is located on the top of the plugging rod and plugs the connection between the outlet pipe and the double-layer hopper. The diameter of the plugging rod gradually decreases from the top to the bottom. The outer periphery of the plugging rod has a scraper for scraping the residual liquid on the inner wall of the longitudinal pipe. The scraper extends from the top to the bottom of the plugging rod. The bottom of the sealing rod has an operating rod that drives the sealing rod to rotate up and down. The operating rod passes through the middle of the longitudinal tube to the bottom of the transverse tube and is threadedly connected to the transverse tube.

4. The liquid loading arm with automatic residual liquid recovery and heating as described in claim 3, characterized in that, The longitudinal tube has a hollow cavity arranged in a hollow manner, and there is a spaced interval region between the hollow cavity and the sealing rod. The scraper is located in the spaced interval region, the outer end of the scraper abuts against the inner sidewall of the hollow cavity, and the inner end of the scraper abuts against the outer periphery of the sealing rod.

5. The liquid loading arm with automatic residual liquid recovery and heating as described in claim 3, characterized in that, The upper part of the operating lever is located inside the longitudinal tube and the transverse tube, the lower part of the operating lever is exposed outside the transverse tube, and the lower part of the operating lever is provided with a nut for driving the operating lever to rotate up and down.

6. The liquid loading arm with automatic residual liquid recovery and heating as described in claim 1, characterized in that, The air inlet pipe and the air outlet pipe respectively pass through the outer hopper and are connected to the steam flow channel, and the air inlet pipe and the air outlet pipe are arranged opposite to each other.

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