Seawater sampler
By designing a seawater sampler including sample barrels, bucket lids and pistons, the problem of ineffective acquisition of seawater at the center line of the nautical ships in the prior art is solved, and accurate detection of seawater density and accurate calculation of cargo weight are achieved.
Patent Information
- Application Number
- CN202421282811.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing seawater sampler cannot effectively obtain seawater at the center line of the draft of nautical ships, resulting in the obtained seawater samples being unrepresentative, which in turn affects the accurate calculation of the weight of the cargo being carried.
A seawater sampler including sample barrel, bucket lid and piston was designed. By setting a piston and plug at the bottom of the sample barrel, the cable was used to control the up and down movement of the piston to ensure that the seawater enters the sample barrel after reaching the center line of the draft, and avoiding early seawater entering.
It is possible to accurately obtain seawater samples at the center line of the draft of nautical ships, ensuring that the detected seawater density is representative, thereby improving the accuracy of the weight calculation of cargo loads.
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Figure CN222913208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sampler, in particular to a seawater sampler, belonging to the technical field of production and manufacturing of seawater detection sampling devices. Background Art
[0002] Generally, when using a ship for ocean transportation of goods, using a draft to calculate the carrying capacity is a commonly used weighing method, and the key parameter for calculating the carrying capacity using a draft is the density of seawater, because the density of seawater determines the buoyancy of seawater.
[0003] However, the density of seawater is related to the salt content of the sea area where it is located and also has a great relationship with the temperature of seawater. Therefore, to ensure the accuracy of the draft weighing result, it is necessary to use the density of a representative seawater water sample as the parameter for calculating the ship's carrying capacity.
[0004] A representative seawater water sample is not obtained randomly. Since a ship will cause a change in the draft depth due to different self-weights and load weights in water, generally, as Figure 1 As shown in the sampling schematic diagram of seawater required for detecting the density of a representative seawater water sample when a seagoing ship calculates its carrying capacity through a draft, a representative seawater water sample is usually seawater taken from the position of the draft centerline 2 of the seagoing ship 1. The draft line is usually obtained through the draft scale 3 on the ship, and the draft centerline refers to the water line at half of the total draft depth of the seagoing ship.
[0005] A representative seawater water sample is usually sampled using a sampler or a sampling bucket. In the prior art, as Figure 2 As shown in the structural schematic diagram of a seawater sampler in the prior art, it usually includes a barrel body 10 and a handle 20. A lifting rope 30 is also connected to the handle 20. An inlet hole 11 is provided at the bottom of the barrel body 10. A check valve cover 12 is provided inside the barrel body 10. The check valve cover 12 is used to prevent the loss of seawater inside when lifting the barrel body 10. Sometimes, a flip cover 13 is also provided at the upper part of the barrel body 10 to prevent the overflow of seawater inside the barrel body 10 or the effect of other seawater.
[0006] The seawater sampler for seagoing trials provided by the utility model patent (application number: 202311665313.4) is a typical seawater sampler commonly used in the prior art. It includes an upper flip-type check valve, a lower flip-type check valve, and a PVC pipe. The upper flip-type check valve and the lower flip-type check valve are respectively fixed at the upper and lower ends of the PVC pipe. Both the upper flip-type check valve and the lower flip-type check valve are composed of a valve wall, a sealing flap, and a connecting flange. The valve wall is fixed on the PVC pipe through the connecting flange. The sealing flap is fixed on the inner wall of the valve wall through a rotating shaft. The sealing flap can be flipped up and down. When flipped up, the pipe orifice of the PVC pipe is in an open state. When flipped down to be horizontal, the pipe orifice of the PVC pipe is in a closed state, and it can be used to meet the requirement for obtaining seawater water samples in ship test projects.
[0007] However, it can be seen that in the prior art including the above-mentioned seawater sampler for sea trial, the structures of seawater samplers are relatively complex and the overall is rather clumsy. Moreover, it cannot effectively obtain the seawater at the draught centerline position of a seagoing ship, so as to obtain a representative seawater sample of the corresponding ship, and then detect a representative seawater density parameter. The reason is that:
[0008] When the seawater sampler in the prior art is actually used, as Figure 1 shown, when a sailor 4 puts the seawater sampler / sampler bucket into the sea, once the bucket body 10 contacts the sea surface, seawater will enter the bucket body 10 from its water inlet hole 11, that is, before the bucket body 10 reaches the draught centerline 2 position of the seagoing ship 1, the bucket body 10 is already filled with seawater. Obviously, at this time, most of the seawater in the bucket body 10 is the seawater on the sea surface layer, rather than the seawater at the draught centerline 2 position of the seagoing ship 1. Therefore, the obtained seawater sample is not representative, and the seawater density detected therefrom is not representative, thus causing a quite large error in calculating the weight of the cargo carried by the seagoing ship. Summary of the Invention
[0009] To overcome the deficiencies of the prior art and meet the need for accurate calculation of the weight of the cargo carried by seagoing ships, the present utility model particularly provides a seawater sampler to help sailors accurately obtain the seawater sample at the draught centerline position of their seagoing ships, so as to detect an accurate value of the seawater density that can be used for calculating the weight of the cargo carried by the seagoing ship, providing a basis for the accurate calculation of the weight of the cargo carried by the seagoing ship. For this purpose, the following technical solutions are given:
[0010] A seawater sampler for obtaining a seawater test sample for calculating the seawater density required for the cargo carrying capacity during ship navigation, comprising:
[0011] a sample bucket, a bucket cover and a piston;
[0012] The sample bucket is a bottomed cylindrical member, an external thread is provided on the outer edge of the upper opening of the sample bucket, and a plurality of seawater inlet and outlet holes are also opened on the upper barrel wall of the sample bucket;
[0013] The bucket cover is composed of a frustum-shaped cover on the upper part and a cylindrical cover support on the lower part, and the top of the cover is open. An internal thread matching the external thread on the upper part of the sample bucket is provided on the inner wall of the cover support. The bucket cover is screwed onto the upper part of the sample bucket through the internal thread on its cover support;
[0014] The piston is arranged inside the sample bucket and can move up and down in the sample bucket, and a frustum-shaped plug is also provided on the upper part of the piston, and a cable is provided on the upper part of the plug;
[0015] Pull the cable, and the cable can pull the plug and drive the piston to move upward from the bottom of the sample barrel through the seawater inlet and outlet holes and be located above the seawater inlet and outlet holes, while the plug can penetrate and block the opening at the top of the cover.
[0016] Furthermore, the seawater sampler further includes a weight, and the weight is arranged on the outer barrel wall of the sample barrel, and is used to increase the weight of the sample barrel to improve its sinking speed in seawater and correct the vertical eccentricity of the sample barrel.
[0017] Optionally, the weight is an annular member, and the annular member is connected to the outer wall at the bottom of the sample barrel by means of screw connection, welding or clamping.
[0018] Furthermore, a ring buckle is also arranged at the position of the vertical center line of the plug, and the ring buckle is used for tying the cable.
[0019] Furthermore, the seawater sampler further includes a lifting mechanism, and the lifting mechanism includes hanging ears arranged on opposite sides of the outer barrel wall of the sample barrel, and the hanging ears are used for hooking a U-shaped handle for lifting the sample barrel.
[0020] Furthermore, an O-shaped ring is also arranged at the top of the U-shaped handle and at the position of the vertical center line of the sample barrel, and the cable passes upward through the O-shaped ring.
[0021] Furthermore, a label indicating its length is also arranged on the cable.
[0022] Furthermore, a floating buoy is also tied to the cable, and the floating buoy is red.
[0023] Optionally, the sample barrel is made of stainless steel or PVC pipe; the piston is made of polytetrafluoroethylene material, or the piston is made of stainless steel / PVC material and an O-shaped sealing ring is embedded on its outer periphery.
[0024] Compared with the prior art, the beneficial effects and progress of the present utility model are as follows:
[0025] The seawater sampler provided by the present utility model includes a sample barrel, a barrel cover and a piston. Among them, the sample barrel is a bottomed cylindrical member and there are a plurality of seawater inlet and outlet holes on the upper barrel wall. The barrel cover is composed of a frustum-shaped cover on the upper part and a cylindrical cover support on the lower part and is screwed on the upper part of the sample barrel, and the cover has an opening at the top. The piston is arranged inside the sample barrel and can move up and down in the sample barrel. A frustum-shaped plug and a cable are also arranged on the upper part of the piston. Pull the cable, and the plug can be pulled and the piston can be driven to move upward from the bottom of the sample barrel through the seawater inlet and outlet holes and be located above the seawater inlet and outlet holes, while the plug can penetrate and block the opening at the top of the cover;
[0026] When the seawater sampler provided by the present utility model reaches the position of the draft center line of its seagoing ship through the placement of the cable, during the process of pulling the cable to move the piston upward from the bottom of the sample bucket and passing through the seawater inlet and outlet holes to be located above the seawater inlet and outlet holes, the piston located at the bottom of the sample bucket can discharge the seawater poured into the sample bucket during its sinking through the seawater inlet and outlet holes. When it reaches the top of the sample bucket above the seawater inlet and outlet holes with the rise of the piston, the seawater originally occupying the sample bucket is completely emptied. At this time, the seawater at the position of the draft center line of the seagoing ship is injected into the sample bucket through the seawater inlet and outlet holes and reaches the ship under the lifting of the seafarers. During this process, since the opening at the top of the cover is blocked by a plug, and the seawater already poured into the sample bucket will not flow out from its seawater inlet and outlet holes, a representative seawater water sample required for calculating the weight of the cargo carried by the seagoing ship can be obtained perfectly;
[0027] It can be seen that the seawater sampler provided by the present utility model overcomes the deficiencies of the prior art, can help seafarers accurately obtain the seawater water sample at the position of the draft center line of the seagoing ship, thereby detecting the accurate value of the seawater density that can be used for calculating the weight of the cargo carried by the seagoing ship, providing a basis for the accurate calculation of the weight of the cargo carried by the seagoing ship. Moreover, the seawater sampler has a simple structure, is convenient to manufacture and use, and is easy to maintain and repair, and can achieve substantial technical effects. Therefore, it has great popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] To more clearly illustrate the technical solutions of the present utility model, the drawings required for the embodiments of the present utility model will be briefly introduced below.
[0029] Obviously:
[0030] The drawings in the following description are only partial embodiment drawings of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, but these other drawings also belong to the scope of the drawings required for the embodiments of the present utility model.
[0031] Figure 1 Schematic diagram of seawater sampling required for detecting the density of a representative seawater water sample when a seagoing ship calculates its carrying capacity through a draft scale;
[0032] Figure 2 Schematic diagram of the structure of a seawater sampler in the prior art;
[0033] Figure 3 Cross-sectional structure schematic diagram of a seawater sampler provided by an embodiment of the present utility model;
[0034] Figure 4Schematic cross-sectional structure diagram of the piston of a seawater sampler provided by an embodiment of the present utility model;
[0035] Figure 5 Schematic three-dimensional structure diagram of an optimized seawater sampler provided by an embodiment of the present utility model.
[0036] In the figure:
[0037] 1 - Seagoing ship, 2 - Draft center line, 3 - Draft mark, 4 - Seaman;
[0038] 10 - Bucket body, 11 - Water inlet hole, 12 - Check valve cover, 13 - Flap, 20 - Handle, 30 - Pulling rope;
[0039] 110 - Sample bucket, 111 - External thread, 112 - Seawater inlet and outlet hole, 120 - Bucket cover, 121 - Cover, 122 - Cover support, 130 - Piston, 131 - Plug, 132 - Cable, 133 - Ring buckle, 134 - Label, 135 - Floating buoy, 136 - O-ring seal, 140 - Ballast weight, 151 - Hanging ear, 152 - U-shaped handle, 153 - O-shaped ring. Specific embodiments
[0040] To make the objectives, technical solutions, beneficial effects, and remarkable progress of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings provided for the embodiments of the present utility model. Obviously, all the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0041] It should be noted that the terms "including" and any variations thereof in the description and claims of the present utility model are intended to cover non-exclusive inclusion. For example, it includes not only a series of listed technical features and structural components, but also optionally includes technical features and structural components that are not listed, or optionally also includes the connection relationships between these technical features and structural components.
[0042] It should be understood that in the description of the embodiments of the present utility model, the directional or positional terms such as "upper", "lower", "one side", "both sides", etc. are only based on the orientation or positional relationship shown in the accompanying drawings of the embodiments of the present utility model, which is for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element must have a specific orientation, specific orientation structure, and operation. Therefore, it should not be construed as a limitation to the present utility model.
[0043] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "arranged" and "provided with" shall be understood in a broad sense. For example, it can be fixedly arranged, removably and movably arranged, or integrally fixedly connected. And the connection therein can be a direct connection, an indirect connection through an intermediate medium, or the communication inside two structural elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0044] It should also be noted that:
[0045] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0046] Next, the technical solution of the present utility model will be described in detail with specific embodiments.
[0047] Embodiment
[0048] This embodiment provides a seawater sampler for obtaining seawater density data required for calculating the carrying capacity of a ship during navigation.
[0049] As Figure 3 shown in the sectional structure schematic diagram of a seawater sampler provided by an embodiment of the present utility model, Figure 4 shown in the sectional structure schematic diagram of the piston of a seawater sampler provided by an embodiment of the present utility model:
[0050] A seawater sampler includes a sample bucket 110, a bucket cover 120 and a piston 130, wherein:
[0051] The sample bucket 110 is a bottomed cylindrical member. The outer edge of the upper opening of the sample bucket 110 is provided with an external thread 111, and a plurality of seawater inlet and outlet holes 112 are also opened on the upper barrel wall of the sample bucket 110;
[0052] The bucket cover 120 is composed of a frustum-shaped cover 121 at the upper part and a cylindrical cover support 122 at the lower part. The cover 121 has an opening at the top, and the inner wall of the cover support 122 is provided with a cover support 123 matching the external thread 111 on the upper part of the sample bucket 110. The bucket cover 120 is screwed onto the upper part of the sample bucket 110 through the cover support 123 on its cover support 122;
[0053] The piston 130 is arranged inside the sample bucket 110 and can move up and down in the sample bucket 110. A frustum-shaped plug 131 is also arranged on the upper part of the piston 130, and a cable 132 is arranged on the upper part of the plug 131;
[0054] Pull the cable 132, and the cable 132 can pull the plug 131 and drive the piston 130 to move upward from the bottom of the sample bucket 110 through the seawater inlet / outlet hole 112 and be located above the seawater inlet / outlet hole 112, while the plug 131 can pass through and block the opening at the top of the cover 121.
[0055] From the above description, it can be seen that:
[0056] The seawater sampler provided in this embodiment includes a sample bucket, a bucket cover and a piston. Among them, the sample bucket is a bottomed cylindrical member with a plurality of seawater inlet / outlet holes opened on the upper barrel wall. The bucket cover is composed of a frustum-shaped cover on the upper part and a cylindrical cover on the lower part and is screwed on the upper part of the sample bucket. The cover has an opening at the top. The piston is arranged inside the sample bucket and can move up and down in the sample bucket. A frustum-shaped plug and a cable are also provided on the upper part of the piston. Pull the cable, and the plug can be pulled and the piston can be driven to move upward from the bottom of the sample bucket through the seawater inlet / outlet hole and be located above the seawater inlet / outlet hole, while the plug can pass through and block the opening at the top of the cover.
[0057] It can be seen that when the seawater sampler provided in this embodiment reaches the position of the draft center line of its navigation ship through the cable placement, during the process of lifting the cable to make the piston move upward from the bottom of the sample bucket and pass through the seawater inlet / outlet hole and be located above the seawater inlet / outlet hole, the piston located at the bottom of the sample bucket can discharge the seawater poured into the sample bucket when it sinks through the seawater inlet / outlet hole. When it reaches the top of the sample bucket above the seawater inlet / outlet hole with the rise of the piston, the seawater originally occupying the sample bucket is completely emptied. At this time, the seawater at the position of the draft center line of the navigation ship is injected into the sample bucket through the seawater inlet / outlet hole and reaches the ship under the lifting of the seaman. During this process, since the opening at the top of the cover is blocked by the plug, the seawater already poured into the sample bucket will not flow out from its seawater inlet / outlet hole. Therefore, a representative seawater water sample required for calculating the weight of the cargo carried by the navigation ship can be obtained perfectly.
[0058] Further, as Figure 5 shown in the three-dimensional structure schematic diagram of an optimized seawater sampler provided by the embodiment of the present utility model:
[0059] The seawater sampler provided in this embodiment further includes a weight 140. The weight 140 is arranged on the outer barrel wall of the sample bucket 110 and is used to increase the weight of the sample bucket 110 to improve its sinking speed in seawater and correct the vertical eccentricity of the sample bucket 110.
[0060] Optionally, the weight 140 can be an annular member, and the annular weight 140 can be connected to the outer wall of the bottom of the sample bucket 110 by means of screw connection, welding or clamping.
[0061] Further, from Figure 4 or Figure 5It can also be seen from:
[0062] For the seawater sampler provided in this embodiment, a loop 133 is also provided at the position of the vertical center line of the plug 131, and the loop 133 can facilitate the tying of the cable 132.
[0063] Furthermore, from Figure 5 It can also be seen from:
[0064] The seawater sampler provided in this embodiment further includes a carrying mechanism. The carrying mechanism includes hanging ears 151 provided on opposite sides of the outer cylindrical wall of the sample bucket 110, and the hanging ears 151 are used for hooking the U-shaped handle 152 for carrying the sample bucket 110.
[0065] Furthermore, as an optimization, an O-shaped ring 153 is also provided at the top of the U-shaped handle 152 and at the position of the vertical center line of the sample bucket 110. The cable 132 passes upward through the O-shaped ring 153, which not only does not affect the use of the U-shaped handle 152 but also ensures that the cable 132 does not get entangled with the U-shaped handle 152, thus facilitating the smooth lowering or lifting of the sample bucket 110.
[0066] Furthermore, as an optimization, a label 134 indicating its length can also be provided on the cable 132 to facilitate the user to grasp the depth to which the sample bucket 110 is lowered or the height to which it has been lifted.
[0067] Furthermore, from Figure 5 It can also be seen that a float 135 can be tied to the cable 132 to more smoothly and gently lower the sample bucket 110 through the float 135 and control the lowering depth of the sample bucket 110.
[0068] Optionally, the float 135 is red; obviously, the red float 135 is more conspicuous.
[0069] Optionally, the sample bucket 110 of the seawater sampler provided in this embodiment can be made of stainless steel or PVC pipe to improve its corrosion resistance to seawater and ensure that the water sample is not contaminated;
[0070] The piston 130 can be made of polytetrafluoroethylene material to make full use of the anti-corrosion performance and self-lubricity of the polytetrafluoroethylene material, thus ensuring that the piston 130 can work properly for a long time;
[0071] Of course, the piston 130 can also be made of stainless steel / PVC material, and an O-shaped sealing ring 136 is embedded on the outer periphery of the piston 130 made of stainless steel / PVC material to improve its sealing performance.
[0072] In summary, it can be seen that:
[0073] The utility model constitutes a novel seawater sampler through a sample bucket, a bucket cover and a piston. It overcomes the deficiencies of the prior art, can help seafarers accurately obtain seawater samples at the position of the waterline centerline of their seagoing vessels, thereby detecting accurate values of seawater density that can be used for calculating the weight of the goods carried by the seagoing vessels, provides a basis for accurately calculating the weight of the goods carried by the seagoing vessels, and has a simple structure, is convenient to manufacture and use, and is easy to maintain and repair. Compared with the prior art, it can achieve substantial technical effects. Therefore, it has great promotion and application value.
[0074] In the description process of the above specification:
[0075] Descriptions of terms such as "this embodiment", "embodiment of the utility model", "as shown in...", "further", etc. mean that the specific features, structures, materials or characteristics described in the embodiment are included in at least one embodiment of the utility model. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment, and moreover, the specific features, structures, materials or characteristics, etc. can be combined or combined in a suitable manner in any one or more embodiments; in addition, on the premise of not generating contradictions, those of ordinary skill in the art can combine or combine different embodiments and the features of different embodiments described in this specification.
[0076] Finally, it should be noted that:
[0077] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions described in the embodiments of the utility model. Non-essential improvements, adjustments or replacements made by those skilled in the art according to the content recorded in this specification all fall within the scope protected by the utility model.
Claims
1. A seawater sampler for obtaining seawater test samples for seawater density data required for calculating the carrying capacity of a ship during navigation, characterized in that: Including sample barrel, barrel cover and piston; The sample barrel is a cylindrical component with a bottom, the outer edge of the upper opening of the sample barrel is provided with an external thread, and a plurality of seawater inlet and outlet holes are also provided on the upper wall of the sample barrel; The barrel cover is composed of an upper truncated cone-shaped cover and a lower cylindrical cover support, and the cover is open at the top, and the inner wall of the cover support is provided with an internal thread matching the external thread on the upper part of the sample barrel, and the barrel cover is screwed on the upper part of the sample barrel through the internal thread on the cover support; The piston is arranged inside the sample barrel and can move up and down in the sample barrel, and a truncated cone-shaped plug is arranged on the upper part of the piston, and a pull rope is arranged on the upper part of the plug; By pulling the cable, the cable can pull the plug and drive the piston to move upward from the bottom of the sample barrel through the seawater inlet and outlet hole to the upper part of the seawater inlet and outlet hole, and the plug can pass through and block the opening at the top of the cover.
2. The seawater sampler according to claim 1, characterized in that: It also includes a weight block, which is arranged on the outer wall of the sample barrel and is used to increase the weight of the sample barrel to increase its sinking speed in seawater and correct the vertical eccentricity of the sample barrel.
3. The seawater sampler according to claim 2, characterized in that: The weight block is an annular component, and the annular component is connected to the outer wall of the bottom of the sample barrel by means of threaded connection, welding or clamping.
4. The seawater sampler according to claim 1, characterized in that: The plug is also provided with a buckle at a position perpendicular to the center line thereof, and the buckle is used for tying the cable.
5. The seawater sampler according to claim 1, characterized in that: It also includes a carrying mechanism, which includes hanging ears arranged on opposite sides of the outer wall of the sample barrel, and the hanging ears are used to hook the U-shaped handle of the sample barrel.
6. The seawater sampler according to claim 5, characterized in that: An O-shaped ring is also arranged on the top of the U-shaped handle and located at the vertical center line of the sample barrel, and the pull rope passes through the O-shaped ring upwards.
7. The seawater sampler according to claim 1, characterized in that: The cable is also provided with a label indicating its length.
8. The seawater sampler according to claim 7, characterized in that: A float is also fastened to the dragline.
9. The seawater sampler according to claim 8, characterized in that: The float is red.
10. The seawater sampler according to claim 9, characterized in that: The sample barrel is made of stainless steel or PVC pipe; the piston is made of polytetrafluoroethylene material, or the piston is made of stainless steel / PVC material and an O-ring is embedded in the outer periphery of the piston.
Citation Information
Patent Citations
Seawater sampler for navigation test
CN117723345A