Submersible liquid density detection device
By using an immersion-type liquid density detection device, which utilizes the principle of buoyancy detection and a partitioned structure, the problems of low detection accuracy and clogging in slurry are solved, achieving high-precision and low-maintenance density detection results.
Patent Information
- Application Number
- CN202520181046.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-05
AI Technical Summary
Traditional density testing devices have low accuracy in slurry, are easily affected by suspended particles, and are prone to clogging of bypass pipes, resulting in inaccurate testing and difficult maintenance.
It adopts an immersion liquid density detection device, which utilizes the buoyancy detection principle. It is designed with a conical or frustum-shaped float and a partitioned main body, consisting of a protective cover and a flow stabilizer. This avoids suspended particles from affecting buoyancy detection, simplifies the structure, and reduces the risk of blockage.
It improves detection accuracy, reduces maintenance costs and failure probability, has a simple structure that is easy to install and maintain, and avoids interference from slurry turbulence on detection components.
Smart Images
Figure CN223808298U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid density detection technical field, specifically, relate to a kind of submerged liquid density detection device. BACKGROUND
[0002] In the production process such as ore pulp treatment, reagent needs to be added according to the density of ore pulp to guide the subsequent process. The traditional density detection device with lens or bypass weighing type density detection device is used for density detection. The former is complex in composition and is arranged inside the device, close to the ore pulp, and the splashing of the ore pulp can cause pollution and interference to the mirror surface, resulting in reduced detection accuracy. The latter detects density by arranging a weighing structure outside the device. The bypass branch structure has many bypass branch structures. When the ore pulp stops collecting, the bypass branch structure will be blocked due to the deposition of the components in the ore pulp.
[0003] Therefore, the current improvement is to detect the density by submerged buoyancy. In specific use, the detection device is immersed in the ore pulp, and a protective cover is provided to reduce the impact of the ore pulp on the internal float. However, due to the presence of suspended particles in the ore pulp, it is impossible to avoid the suspended particles falling on the float, which affects the detected buoyancy and results in inaccurate ore pulp density. SUMMARY
[0004] The utility model provides a kind of submerged liquid density detection device, solve the problem that the suspended particles in the ore pulp in the related art cannot avoid falling on the float, which will affect the detected buoyancy and result in inaccurate ore pulp density.
[0005] The technical solution of the utility model is as follows:
[0006] A submerged liquid density detection device is arranged in a liquid for detection, comprising:
[0007] A main body has a detection area with a communication port.
[0008] A pressure sensor is arranged in the detection area.
[0009] A float body is arranged in the detection area and connected to the pressure sensor. The cross-sectional area of the float body increases from top to bottom.
[0010] For example, in the submerged liquid density detection device provided by at least one embodiment of the present disclosure, the float body is conical.
[0011] For example, in the submerged liquid density detection device provided by at least one embodiment of the present disclosure, the main body comprises:
[0012] The protective cover and the steady flow cover are detachably arranged at the bottom of the protective cover, the protective cover has a protective area, the steady flow cover has a steady flow area, the steady flow area has the communication port, the protective area and the steady flow area constitute the detection area, the pressure sensor is arranged in the protective area, and the float body is arranged in the steady flow area.
[0013] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0014] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0015] The hanger plate is arranged on the top of the protective cover and located in the protective area, and the pressure sensor is arranged at the bottom of the hanger plate.
[0016] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0017] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0018] The connecting rod is connected with the pressure sensor and the float body at two ends.
[0019] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0020] The fixing plate is arranged at the bottom of the hanger plate and forms a fixing area with the hanger plate, the pressure sensor is located in the fixing area, and the connecting rod penetrates through the fixing plate.
[0021] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0022] For example, the protective cover is sleeved on the top of the steady flow cover, the top of the steady flow cover and the protective cover each have a plurality of mounting holes, and the mounting holes of the protective cover and the mounting holes of the steady flow cover are arranged one by one in correspondence.
[0023] The working principle and beneficial effects of the utility model are as follows:
[0024] 1. Avoid pollution interference: the detection device is arranged inside the ore pulp device as a whole, liquid ore pulp from outside is introduced into the detection device through the communication port, the density value is obtained by using the detected buoyancy value, the shell main body protects the detection components inside to a certain extent, avoids ore pulp turbulence disturbing the buoyancy detection components, compared with the traditional density detection device with a lens, the detection precision is improved.
[0025] More importantly, since the cross-sectional area of the float body gradually increases from top to bottom, that is, the side wall of the float body is inclined, even if the suspended particles fall on the float body, they will slide down along the side wall and will not stay on the float body to affect the buoyancy detection value.
[0026] 2. Prevent clogging: there is no complex bypass branch structure, unlike the bypass weighing type density detection device, which will be clogged due to the deposition of components in the ore pulp when the ore pulp stops collecting, reducing maintenance cost and failure probability.
[0027] 3. Simple structure: mainly composed of a frame main body, a pressure sensor and a float body, the structure is relatively simple, easy to install and maintain. BRIEF DESCRIPTION OF DRAWINGS
[0028] The above characteristics, technical features, advantages and implementation methods of the present application will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.
[0029] Figure 1 Figure 1 is a structural schematic diagram of a submerged liquid density detection device in the present application;
[0030] Figure 2 Figure 2 is a partial cross-sectional view of the present application; Figure 1
[0031] Figure 3 Figure 3 is an enlarged view of part A in the present application; Figure 2
[0032] Figure 4 Figure 4 is an enlarged view of part B in the present application; Figure 2
[0033] Figure 5 Figure 5 is a structural schematic diagram of a steady flow cover in the present application;
[0034] Figure 6 Figure 6 is an enlarged view of part C in the present application. Figure 5
[0035] In the diagram: 1. Main body, 101. Detection area, 102. Connecting port, 103. Protective cover, 104. Flow stabilizer, 105. Protective area, 106. Flow stabilizer area, 107. Mounting hole, 108. Cable outlet, 2. Pressure sensor, 3. Float body, 4. Hanging plate, 5. Connecting rod, 6. Fixing plate, 7. Fixing area. Detailed Implementation
[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0037] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0038] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0040] like Figures 1-2 As shown, it illustrates an embodiment of the present disclosure of an immersion liquid density detection device for use in liquid detection. It includes a main body 1 with a detection area 101, a communication port 102 on the main body 1, a pressure sensor 2 and a float 3 both disposed in the detection area 101 and connected to each other, and the cross-sectional area of the float 3 gradually increases from top to bottom.
[0041] The present disclosure improves the shape of the float body 3, so that the side wall has an inclined surface, which facilitates detection. When the suspended particles in the ore pulp fall on the float body 3, they do not stay on the float body 3 all the time, but slide down along the side wall.
[0042] For the shape of the float body 3, for example, the cross-sectional area of the conical or circular truncated cone shape gradually increases from top to bottom, the side wall can form a sliding inclined surface, and the liquid can maintain good stability. For the circular truncated cone shape, the top is further changed to a hemispherical shape to avoid providing a retention position for suspended particles. Further, the float body 3 is preferably hollow, which saves cost and reduces weight, and is relatively easy to operate in manufacturing and installation.
[0043] The detection process of the submerged liquid density detection device of the present disclosure is as follows:
[0044] After the device is assembled, it is first completely submerged in water for calibration. At this time, the float body 3 is subjected to its own downward force F1, upward buoyancy F2, and downward pressure F3 from the pressure sensor 2. According to the action and reaction, the size of F3 is the detection value of the pressure sensor 2. The static object is in force balance, satisfying the formula: F2=F1+F3. F1 and F3 are known, and the value of F2 can be calculated. According to the Archimedes principle F 浮 =ρ 液 *g*V 排 Therefore, the calibrated V 排 , i.e. the volume of the displaced liquid, can be calculated.
[0045] After calibration, the V 排 of the submerged liquid density detection device when it completely invades the liquid inside can be known. Then, the device is put into an unknown liquid, and the measurement value F3 of the pressure sensor 2 is read to calculate F2. According to the Archimedes principle F 浮 =ρ 液 *g*V 排 The density value of the liquid can be calculated. Even if the detected liquid fluctuates in density due to some reasons, the submerged liquid density detection device can still continuously detect the density of the unknown liquid without adjustment.
[0046] The main body 1 needs to have good corrosion resistance and sealing performance. Stainless steel or lightweight aluminum alloy can be used, which can effectively resist the corrosion of the ore pulp, reduce the installation difficulty, and the size of the communication port 102 on the main body 1 is determined according to the actual liquid flow and detection accuracy requirements. Generally, the communication port 102 should not be too large or too small, so as not to cause large fluctuations in the pressure in the detection area 101 due to the too fast flow of the liquid, or the liquid flow is not smooth.
[0047] When the components are assembled, the cylindrical or square cylindrical main body 1 as the protective shell is used to install the pressure sensor 2 on the top wall or side wall inside the main body 1 through a gasket and a bolt, and then the float body 3 and the pressure sensor 2 are connected, which can be completed by using a bolt or a clamping type. It is worth considering that, in order to ensure that the pressure sensor 2 can detect the pressure change on the float body 3 as accurately as possible, the weight of the float body 3 should be appropriate. If the weight is too heavy, it may exceed the detection range of the pressure sensor 2. If the weight is too light, the response of the pressure sensor 2 to the change in the density of the liquid may not be obvious enough. Therefore, the float body 3 can be made of a non-metal material, such as resin or rubber.
[0048] As shown in Figure 2 some examples, the float body 3 is conical.
[0049] If the non-metal material is too light, the weight of the hollow float body 3 can be increased by adding a counterweight (welded or bolted) at the bottom of the float body 3 to improve the detection accuracy of the pressure sensor 2, which can achieve the above purpose while still ensuring that the center of the float body 3 is close to the bottom to reduce the tendency to sway.
[0050] As shown in Figures 2-3 some examples, the main body 1 includes a protective cover 103 and a flow stabilizing cover 104, the flow stabilizing cover 104 is detachably arranged at the bottom of the protective cover 103, the protective cover 103 has a protection area 105, the flow stabilizing cover 104 has a flow stabilization area 106, the protection area 105 and the flow stabilization area 106 together form a detection area 101, the flow stabilizing cover 104 is provided with a communication opening 102, and the pressure sensor 2 and the float body 3 are arranged in the protection area 105 and the flow stabilization area 106, respectively.
[0051] The main body 1 is prefabricated into two parts, the protective cover 103 and the flow stabilizing cover 104. On the one hand, it is convenient for disassembly and maintenance. If it is blocked by impurities in the ore pulp or damaged due to corrosion after a long period of use, some parts can be easily disassembled for cleaning, maintenance or replacement. It is also convenient for maintenance and inspection of the float body 3. If too many suspended particles adhere to the float body 3, the flow stabilizing cover 104 at the bottom can be disassembled to clean the float body 3 to ensure its normal work. On the other hand, the closed protection area 105 of the protective cover 103 can provide more secure protection for the pressure sensor 2 to avoid possible physical impact or chemical corrosion. The flow stabilization area 106 at the bottom ensures the inflow of the ore pulp and reduces the interference of the external liquid flow on the float body 3 to some extent, and the overall function is clear.
[0052] Specifically detachable can use threaded connection, buckle connection or flange connection, threaded connection, in the protective cover 103 bottom set inner thread, stable cover 104 top set outer thread, by clockwise rotating stable cover 104 will be closely connected with the protective cover 103, this way connection firm, good sealing performance; Buckle connection, the protective cover 103 bottom set several evenly distributed card slot, stable cover 104 top has corresponding buckle, after the buckle is aligned with the card slot, rotate a certain angle (such as 30° or 45°), can realize the fixation of stable cover 104.
[0053] As shown in Figures 2-3 some examples, the protective cover 103 is sleeved on the top of the stable cover 104, and the top of the stable cover 104 and the protective cover 103 each have a plurality of mounting holes 107, and the mounting holes 107 of the protective cover 103 and the mounting holes 107 of the stable cover 104 are arranged one by one.
[0054] Both use threaded connection, but do not open threaded groove at the opening of both, complex processing, but open one by one corresponding mounting hole 107 at the top of the stable cover 104 and the bottom of the protective cover 103, directly bolt in the mounting hole 107, only need to align the corresponding mounting hole 107, can quickly determine the installation position, greatly improve the installation efficiency.
[0055] As shown in Figure 2 , Figures 4-6 some examples, further comprising a hanging plate 4 arranged on the top of the protective cover 103, which is located in the protection area 105, and the pressure sensor 2 is arranged at the bottom of the hanging plate 4.
[0056] A plurality of pressure sensors 2 are arranged along the circumference of the hanging plate 4, and a plurality of pressure sensors 2 are connected with the float body 3.
[0057] Specifically, a plurality of pressure sensors 2 are quickly installed through the hanging plate 4, and the top end of the protective cover 103 is provided with three long nuts, and the three through holes of the hanging plate 4 close to the center are used to pass through the bolts, so that the hanging plate 4 is fixed at the top end of the protective cover 103; Further, the hanging plate 4 close to the periphery is provided with three through holes, the bolt structure of the pressure sensor 2 is passed through the through hole, and the nut is fastened on the other side of the hanging plate 4, and so on, 3 pressure sensors 2 are fixed respectively.
[0058] When installing the detection device, the hanging plate 4 provides a stable force point for the entire device and the pressure sensor 2, and by hooking the hanging plate 4 with the lifting equipment, the detection device can be easily installed at the specified position, and the installation process is more convenient, without the need to fix the pressure sensor 2 in the narrow space.
[0059] As shown in Figure 2 , Figures 4-6As shown in the drawings, in some examples, a connecting rod 5 is further included, which is connected with the pressure sensor 2 and the float body 3 at two ends respectively.
[0060] A fixing disc 6 is further included, which is arranged at the bottom of the hanging disc 4 and forms a fixing area 7 with the hanging disc 4, the pressure sensor 2 is located in the fixing area 7, and the connecting rod 5 penetrates through the fixing disc 6.
[0061] The connection between the pressure sensor 2 and the float body 3 with a certain distance is achieved by the non-metallic connecting rod 5, which can be pre-fabricated and integrated with the float body 3, or a threaded groove is arranged at the end of the connecting rod 5, and the threaded groove is connected with the threaded structure of the float body 3 and the pressure sensor 2.
[0062] Further, the upper end of the float body 3 is provided with the fixing disc 6, which is shaped as a 6-petal plum blossom, and has three through holes in the outer ring, the bolt structure below each pressure sensor 2 is penetrated through the through hole, that is, the connecting rod 5 penetrates through the fixing disc 6 to complete the connection, so as to clamp the pressure sensor 2 in the fixing area 7 composed of the hanging disc 4 and the fixing disc 6 below it, improve the stability of the relatively light pressure sensor 2, and avoid the influence of the ore pulp on the pressure sensor 2.
[0063] As shown in the drawings, Figures 1-3 , Figure 5 In some examples, a plurality of communication openings 102 are arranged along the circumferential direction of the float body 3, and the flow stabilizer 104 is a circular truncated cone, and the cross-sectional area of the flow stabilizer 104 gradually increases from top to bottom.
[0064] The protective cover 103 is a circular cylinder, and the protective cover 103 further has a wire outlet hole 108.
[0065] The plurality of communication openings 102 are arranged along the circumferential direction of the float body 3, which can make the liquid flow into the flow stabilization area 106 uniformly from multiple directions, ensure that the float body 3 receives uniform liquid acting force in all directions, and reduce the detection error caused by uneven flow of the ore pulp.
[0066] Further, the shape of the flow stabilizer 104 is adapted to the shape of the float body 3, the cross-sectional area of the flow stabilizer 104 also gradually increases from top to bottom, and the flow stabilizer 104 is a circular truncated cone, and at the same time, in order to avoid occupying too much space, the protective cover 103 is sleeved on the flow stabilizer 104, the protective cover 103 is a circular cylinder, and the inner diameter of the protective cover 103 is equal to the outer diameter of the smallest cross section of the flow stabilizer 104, and the whole is in the shape of a flashlight, which also makes the flow stabilization area 106 form a stable flow state, and provides a stable buoyancy environment for the float body 3.
[0067] In addition, the bottom of the protective cover 103 is further provided with a wire outlet hole 108 for the communication cable of the pressure sensor 2 to pass through, and a groove hole is arranged at the top of the flow stabilizer 104, the flow stabilizer 104 and the sealing cover are buckled with the groove hole, and the groove hole slides with the flow stabilizer 104 to correspond to the wire outlet hole 108, and the installation is completed.
[0068] The bottom plate of the steady flow cover 104 can be a thickened plate, and the weight is increased, so that the gravity center of the whole device is close to the lower side, and the device is more stable.
[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be included in the scope of the claims of the present application.
Claims
1. A submerged liquid density detection device for placement within a liquid for detection, characterized by, The utility model relates to a kind of pressure sensor protection device, including: Main body (1), the main body (1) has detection area (101), the detection area (101) has communication port (102); Pressure sensor (2), the pressure sensor (2) is arranged in the detection area (101); Float body (3), the float body (3) is arranged in the detection area (101), and is connected with the pressure sensor (2), and the cross-sectional area of the float body (3) gradually increases from top to bottom.
2. A submersible liquid density detection device according to claim 1, wherein, The float body (3) is conical.
3. A submersible liquid density detection device according to either of claims 1 or 2, characterised in that, The main body (1) includes: Protective cover (103) and steady flow cover (104), the steady flow cover (104) is detachably arranged at the bottom of the protective cover (103), the protective cover (103) has protective area (105), the steady flow cover (104) has steady flow area (106), the steady flow area (106) has the communication port (102), the protective area (105) and the steady flow area (106) constitute the detection area (101), the pressure sensor (2) is arranged in the protective area (105), and the float body (3) is arranged in the steady flow area (106).
4. A submersible liquid density detection device according to claim 3, wherein, The protective cover (103) is sleeved at the top of the steady flow cover (104), and the top of the steady flow cover (104) and the protective cover (103) are each provided with a plurality of mounting holes (107), and the mounting holes (107) of the protective cover (103) and the mounting holes (107) of the steady flow cover (104) are arranged one by one.
5. The submersible liquid density detection device of claim 3, wherein, Further including: Hanging tray (4), the hanging tray (4) is arranged at the top of the protective cover (103), and is located in the protective area (105), and the pressure sensor (2) is arranged at the bottom of the hanging tray (4).
6. A submersible liquid density detection device according to claim 5, wherein, The pressure sensor (2) is a plurality of, and a plurality of pressure sensors (2) are arranged along the circumference of the hanging tray (4), and a plurality of pressure sensors (2) are connected with the float body (3).
7. A submersible liquid density detection device according to claim 5, wherein, Further including: Connecting rod (5), the connecting rod (5) is connected with the pressure sensor (2) and the float body (3) respectively at two ends.
8. A submersible liquid density detection device according to claim 7, wherein, Further including: Fixed disc (6), the fixed disc (6) is arranged at the bottom of the hanging tray (4), and forms fixed area (7) between the fixed disc (6) and the hanging tray (4), the pressure sensor (2) is located in the fixed area (7), and the connecting rod (5) penetrates the fixed disc (6).
9. The submersible liquid density detection device of claim 3, wherein, The communication port (102) is a plurality of, and a plurality of communication ports (102) are arranged along the circumference of the float body (3), and the steady flow cover (104) is circular truncated cone, and the cross-sectional area of the steady flow cover (104) gradually increases from top to bottom.
10. A submersible liquid density detection device according to claim 9, wherein, The protective cover (103) is cylindrical, and the protective cover (103) further has a wire hole (108).