Ammonia water weighing device in ammonia water feeding system

Abstract

The utility model discloses an ammonia water weighing device in an ammonia water feeding system, which comprises an ammonia water tank and a weighing instrument, a floating plate is mounted in the ammonia water tank, a bottom plate is arranged below the ammonia water tank, a lifting mechanism is mounted on the bottom plate, the ammonia water tank is positioned on the lifting mechanism, and the weighing instrument is mounted on the bottom plate. The lifting mechanism is installed on the bottom plate, the ammonia water tank is installed on the lifting mechanism, when the lifting mechanism ascends, the ammonia water tank is separated from the weighing instrument, and when the lifting mechanism descends, the ammonia water tank is placed on the weighing instrument for weighing, so that the problem that the structural sensitivity of the weighing instrument is easily reduced due to the fact that the ammonia water tank is heavily pressed on the top of the weighing instrument for a long time is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field especially relates to a kind of ammonia water weighing device in ammonia water feeding system. BACKGROUND

[0002] Ammonia water is widely used in the preparation of acrylic emulsion and polyurethane dispersion and other raw materials, because its addition amount is not large, general factory adopts manual adding mode, ammonia water is irritating, smell is offensive, and has strong corrosion, which can easily cause discomfort to workers, and long-term use can cause greater harm to the body, when adding ammonia water, the ammonia water needs to be weighed, and the weighing instrument is usually used for weight measurement.

[0003] According to the search, the Chinese document with publication number CN219347924U discloses an ammonia water weighing platform in an ammonia water feeding system. The ammonia water weighing platform in the ammonia water feeding system comprises a weighing instrument, a box body fixedly installed on the top of the weighing instrument, a one-way screw rod rotatably installed in the box body, a floating plate threadedly sleeved on the one-way screw rod, and a motor fixedly installed on the top of the box body, with the output shaft of the motor being fixedly connected with the one-way screw rod. The ammonia water weighing platform in the ammonia water feeding system provided by the utility model has the advantages of being able to quickly stop the shaking of ammonia water, reducing the time required for weighing, and improving the precision.

[0004] The device has the following problems when in use: the box body structure is long-term heavy on the top of the weighing instrument, which can easily reduce the sensitivity of the weighing instrument structure, and the design of using the motor to drive the floating plate to rise and fall needs to be adjusted in real time according to the height of the ammonia water level in the box body, which not only has a complex structure, but also is inconvenient to observe the internal liquid level and adjust. In view of the above problems, an ammonia water weighing device in an ammonia water feeding system is provided, which at least solves one of the problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an ammonia water weighing device in an ammonia water feeding system, which is installed with a lifting mechanism on the bottom plate, the ammonia water tank is installed on the lifting mechanism, when the lifting mechanism is raised, the ammonia water tank is separated from the weighing instrument, and when the lifting mechanism is lowered, the ammonia water tank is placed on the weighing instrument for weighing, so as to solve the problem that the ammonia water tank is long-term heavy on the top of the weighing instrument, which can easily reduce the sensitivity of the weighing instrument structure.

[0006] In order to achieve the above object, the utility model provides a kind of ammonia water weighing device in ammonia water feeding system, including ammonia water tank and weighing instrument, the inside of ammonia water tank is equipped with float plate, bottom plate is arranged in the lower of ammonia water tank, and lifting mechanism is installed on bottom plate, and ammonia water tank is located on lifting mechanism, and weighing instrument is installed on bottom plate;When the lifting mechanism is raised, ammonia water tank is separated from weighing instrument, when the lifting mechanism is lowered, ammonia water tank is placed on weighing instrument.

[0007] The ammonia water tank is located on the support frame, and the support frame is located on the lifting mechanism.

[0008] The support frame includes a support ring and a support plate, and at least three support plates are installed on the upper side edge of the support ring. The ammonia water tank is installed on the support ring, and the lower side of the support ring is installed on the lifting mechanism. The weighing instrument is located at the center position of the support ring.

[0009] The support frame includes a support plate and a support seat, and a plurality of support plates are installed on the upper side edge of the support seat. The lower side of the support seat is installed on the lifting mechanism. A plurality of channels are provided on the support seat, and the weighing instrument is installed on the bottom plate at the position corresponding to the channel.

[0010] The lifting mechanism includes at least three lifting devices, and the lifting device includes an outer cylinder, a speed reducer, a worm, a worm gear, a lead screw, an inner cylinder and a nut. The outer cylinder is fixedly installed with the bottom plate. The inner cylinder is movably inserted and connected at the upper end of the outer cylinder. The lead screw is rotatably installed at the bottom of the outer cylinder and extends upward into the inner cylinder. The nut is fixedly installed at the bottom of the inner cylinder. The lead screw is threadedly connected with the nut. The worm gear is installed on the lead screw below the inner cylinder. The worm is rotatably installed in the outer cylinder and is in meshing transmission with the worm gear. The speed reducer is transmissionally connected with one end of the worm.

[0011] The lifting mechanism is provided with four lifting devices, which are arranged in a matrix. Two lifting devices in each group are transmissionally connected by one speed reducer.

[0012] The bottom of the support frame is provided with a limiting sleeve, and the lifting mechanism is supported in the limiting sleeve.

[0013] The inside of the ammonia water tank is provided with at least one vertical rod, and the float plate is slidably sleeved on the vertical rod.

[0014] The lifting block is slidably installed on the vertical rod, and the float plate is fixedly connected with the lifting block.

[0015] The spring is installed between the float plate and the lifting block, and the fixed rod is connected with the lifting block after penetrating through the float plate and the spring.

[0016] The utility model discloses relative to prior art has the following technical effects:

[0017] 1, the utility model discloses an ammonia tank is used for containing ammonia water, and the weighing instrument is used for weighing the ammonia tank, by installing the lifting mechanism on the bottom plate, the ammonia tank is installed on the lifting mechanism, when the lifting mechanism elevates, the lifting mechanism lifts the ammonia tank, and the ammonia tank is separated from the weighing instrument, when the lifting mechanism reduces, the ammonia tank is placed on the weighing instrument and is weighed, to solve the problem that the ammonia tank is long -term heavy pressure on the top of weighing instrument, and the structure sensitivity of weighing instrument is easily reduced.

[0018] 2, the utility model discloses installing the support frame in the bottom of ammonia tank, and the support frame is installed on the lifting mechanism, and the stress area that contacts with the bottom of ammonia tank is improved through the support frame. Improve the stability of the lifting mechanism that supports ammonia tank, and prevent the bottom of ammonia tank from directly contacting with the lifting mechanism, cause ammonia tank damage.

[0019] 3, the utility model discloses at least installing one stand in the ammonia tank, and the floating plate is sleeved on the stand, and the floating plate can freely slide up and down along the stand, so that liquid level detection is not needed. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description.

[0021] Figure 1 It is the sectional structure schematic view of the utility model.

[0022] Figure 2 It is the structure schematic view of the lifting device in the lifting mechanism of the utility model.

[0023] Figure 3 It is the overhead structure schematic view of the first embodiment of the support frame of the utility model.

[0024] Figure 4 It is Figure 3 It is the sectional structure schematic view of B-B in the utility model.

[0025] Figure 5 It is the overhead structure schematic view of another embodiment of the support frame of the utility model.

[0026] Figure 6 It is Figure 1 It is the enlarged structure schematic view of A in the utility model.

[0027] REFERENCE SIGNS:

[0028] Ammonia tank 1, weighing instrument 2, bottom plate 3, lifting mechanism 4, outer cylinder 401, speed reducer motor 402, transmission rod 403, worm 404, worm gear 405, screw rod 406, inner cylinder 407, nut 408, limiting sleeve 409;

[0029] Support frame 5, support ring 51, support plate 52, support seat 53, channel 531;

[0030] Floating plate 7, vertical rod 8, lifting block 81, spring 82, fixed rod 83. DETAILED DESCRIPTION

[0031] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0032] Embodiment 1:

[0033] Please see Figures 1-6 A kind of ammonia water weighing device in ammonia water feeding system, including ammonia tank 1 and weighing instrument 2, the inside of ammonia tank 1 is installed with floating plate 7, the bottom of ammonia tank 1 is provided with bottom plate 3, bottom plate 3 is installed with lifting mechanism 4, ammonia tank 1 is placed on lifting mechanism 4, weighing instrument 2 is installed on bottom plate 3;When the lifting mechanism 4 is raised, ammonia tank 1 is separated from weighing instrument 2, when the lifting mechanism 4 is lowered, ammonia tank 1 is placed on weighing instrument 2.

[0034] Ammonia tank 1 is used to contain ammonia water, and weighing instrument 2 is used to weigh ammonia tank 1, by installing lifting mechanism 4 on bottom plate 3, ammonia tank 1 is installed on lifting mechanism 4, when lifting mechanism 4 is raised, lifting mechanism 4 lifts ammonia tank 1, ammonia tank 1 is separated from weighing instrument 2, when lifting mechanism 4 is lowered, ammonia tank 1 is placed on weighing instrument 2 to weigh, to solve the problem that ammonia tank is long-term heavy pressure on the top of weighing instrument, and easily reduces the structural sensitivity of weighing instrument.

[0035] Embodiment 2:

[0036] On the basis of embodiment 1, to improve the stability of lifting mechanism 4 supporting ammonia tank 1, and prevent lifting mechanism 4 from directly contacting with the bottom of ammonia tank 1, causing ammonia tank 1 to be damaged. Please see Figure 1 Support frame 5 is installed at the bottom of ammonia tank 1, support frame 5 is installed on lifting mechanism 4, and the stress area of the bottom of ammonia tank 1 is improved by support frame 5.

[0037] In this embodiment, please see Figure 3 , 4The support frame 5 includes a support ring 51 and a support plate 52, at least three support plates 52 are installed on the upper side edge of the support ring 51, the ammonia tank 1 is installed on the support ring 51, the lower side of the support ring 51 is installed on the lifting mechanism 4, and the weighing instrument 2 is located at the center position of the support ring 51.

[0038] In the embodiment, the weighing instrument 2 adopts the weighing instrument structure disclosed in CN219347924U.

[0039] Wherein, the support frame 5 can be connected and fixed with the ammonia tank 1, the support frame 5 is placed on the lifting mechanism 4, or the support frame 5 is installed and fixed on the top of the lifting mechanism 4, and the ammonia tank 1 is placed on the support frame 5.

[0040] Embodiment 3:

[0041] The difference from embodiment 2 is that, referring to Figure 5 The support frame 5 includes a support plate 52 and a support seat 53, a plurality of support plates 52 are installed on the upper side edge of the support seat 53, the lower side of the support seat 53 is installed on the lifting mechanism 4, a plurality of channels 531 are arranged on the support seat 53, and the weighing instrument 2 is installed on the bottom plate 3 at a position corresponding to the channel 531.

[0042] In the embodiment, the support seat 53 can be a cross shape as shown in Figure 5 , or a disc shape, when the support seat 53 is a cross shape, the channel 531 is a blank between the cross shapes, and when the support seat 53 is a disc shape, the channel 531 is a through hole arranged on the support seat 53.

[0043] In the embodiment, referring to Figure 5 , the channel 531 is provided with four, and the weighing instrument 2 adopts a column type weighing sensor. That is, four weighing instruments 2 are installed on the bottom plate 3, and each weighing instrument 2 is aligned with one channel 531.

[0044] Embodiment 4:

[0045] In the embodiment, referring to Figure 2The lifting mechanism 4 comprises at least three lifting devices, which comprise an outer cylinder 401, a reduction motor 402, a worm 404, a worm wheel 405, a lead screw 406, an inner cylinder 407 and a nut 408. The outer cylinder 401 is fixedly installed with the bottom plate 3, the upper end of the outer cylinder 401 is movably inserted and installed with the inner cylinder 407, the bottom of the outer cylinder 401 is rotatably installed with the lead screw 406 through a bearing seat, the lead screw 406 extends upwards and penetrates into the inner cylinder 407, the bottom of the inner cylinder 407 is fixedly installed with the nut 408, the lead screw 406 is threadedly connected with the nut 408, the worm wheel 405 is installed on the lead screw 406 below the inner cylinder 407, the worm 404 is rotatably installed in the outer cylinder 401, the worm 404 is in meshing transmission with the worm wheel 405, and the reduction motor 402 is in transmission connection with one end of the worm 404. The output shaft of the reduction motor 402 rotates to drive the worm 404 to rotate, thereby driving the worm wheel 405 to rotate, and further driving the lead screw 406 to rotate. Since the lead screw 406 is threadedly connected with the nut 408, and the nut 408 is fixedly installed at the bottom of the inner cylinder 407, when the lead screw 406 rotates, the inner cylinder 407 can be driven to slide up and down.

[0046] In the embodiment, in order to prevent the inner cylinder 407 from rotating, the outer cylinder 401 and the inner cylinder 407 adopt a rectangular cross-section structure. In addition, the shafts at both ends of the worm 404 extend out of the outer cylinder 401 and are rotatably connected and supported by the bearing seat and the outer cylinder 401.

[0047] In the preferred scheme, the lifting mechanism 4 is provided with four lifting devices, the four lifting devices are arranged in a matrix, two of the four lifting devices form a group, and the two lifting devices in each group are in transmission through one reduction motor 402. Specifically, referring to Figure 1 The reduction motor 402 has double output shafts, and the double output shafts of the reduction motor 402 are respectively in transmission connection with one end of the worm 404 through a transmission rod 403. The transmission rod 403 is used for lengthening the output shaft of the reduction motor 402, and the two ends of the transmission rod 403 can be respectively connected and transmitted with the output shaft of the reduction motor 402 and the worm 404 through a shaft coupling.

[0048] Further, referring to Figure 4 The bottom of the support frame 5 is fixedly installed with a limiting sleeve 409, and the lifting mechanism 4 is supported in the limiting sleeve 409. In use, the upper end of the inner cylinder 407 is inserted into the limiting sleeve 409, and a screw can also be threadedly connected transversely on the limiting sleeve 409. By abutting the inner cylinder 407 through the screw, the inner cylinder 407 and the limiting sleeve 409 can be fixed.

[0049] Of course, the lifting device can also adopt a hydraulic oil cylinder.

[0050] Embodiment 5:

[0051] On the basis of embodiment 1, referring toFigure 1 The inside of the ammonia water tank 1 is provided with at least one vertical rod 8, and the floating plate 7 is sleeved on the vertical rod 8 and can slide up and down along the vertical rod 8, so that the liquid level does not need to be detected.

[0052] When the vertical rod 8 is one, the vertical rod 8 can be installed at the center of the bottom of the ammonia water tank 1 through a flange or directly welded at the center of the bottom of the ammonia water tank 1.

[0053] In the embodiment, the vertical rod 8 is two, and the vertical rod 8 can be installed at the bottom of the ammonia water tank 1 through a flange or directly welded at the bottom of the ammonia water tank 1.

[0054] The floating plate 7 is provided with a hole, and the diameter of the hole is slightly larger than the diameter of the vertical rod 8, so that the floating plate 7 can slide up and down along the vertical rod 8.

[0055] Further, referring to Figure 6 The lifting block 81 is sleeved on the vertical rod 8, and the floating plate 7 is fixedly installed with the lifting block 81. Specifically, the lifting block 81 is provided with a hole, and the diameter of the hole is slightly larger than the diameter of the vertical rod 8. The lifting block 81 has two functions, one is to make the floating plate 7 slide up and down more stably, and the other is to increase the weight of the floating plate 7, so that the liquid surface can be more stable.

[0056] Further, the spring 82 is installed between the floating plate 7 and the lifting block 81, and the fixed rod 83 is connected and fixed with the lifting block 81 after penetrating through the floating plate 7 and the spring 82. When the ammonia water rises, the floating plate 7 is lifted by the buoyancy, and the spring 82 buffers between the floating plate 7 and the lifting block 81, so as to slow down the shaking caused by the ammonia water when it is quickly added into the tank. In the embodiment, the fixed rod 83 is a screw. The lifting block 81 and the vertical rod 8 can also be connected by damping, and the gap between the lifting block 81 and the vertical rod 8 can have a small tolerance. When the lifting block 81 slides on the vertical rod 8, there is a certain resistance.

[0057] The working principle or action process of the utility model is as follows:

[0058] In use, in combination with CN219347924U, the guide pipe is a hose, or the guide pipe and the ammonia water tank 1 adopt a detachable structure.

[0059] In the state of not weighing, the lifting mechanism 4 is raised, the lifting mechanism 4 lifts the ammonia water tank 1, and the ammonia water tank 1 is separated from the weighing instrument 2, as shown in Figure 1 .

[0060] When the ammonia water tank 1 needs to be weighed, the lifting mechanism 4 is lowered, and the ammonia water tank 1 is placed on the weighing instrument 2 for weighing, so as to solve the problem that the weighing instrument structure sensitivity is reduced due to the long-term heavy pressure of the ammonia water tank on the top of the weighing instrument.

[0061] In addition, the inside of the ammonia water tank 1 is provided with a vertical rod 8, and the floating plate 7 is sleeved on the vertical rod 8, and the floating plate 7 can slide up and down along the vertical rod 8 freely, so that the liquid level does not need to be detected.

Claims

1. An ammonia water weighing device in an ammonia water feeding system, comprising an ammonia water tank (1) and a weighing instrument (2), a float plate (7) is installed in the ammonia water tank (1), characterized in that: The bottom of the ammonia water tank (1) is provided with a bottom plate (3), the bottom plate (3) is provided with a lifting mechanism (4), the ammonia water tank (1) is placed on the lifting mechanism (4), and the bottom plate (3) is provided with a weighing instrument (2); when the lifting mechanism (4) is raised, the ammonia water tank (1) is separated from the weighing instrument (2), and when the lifting mechanism (4) is lowered, the ammonia water tank (1) is placed on the weighing instrument (2).

2. The ammonia water weighing device in the ammonia water feeding system according to claim 1, characterized in that: The ammonia water tank (1) is located on the support frame (5), and the support frame (5) is located on the lifting mechanism (4).

3. The ammonia water weighing device in the ammonia water feeding system according to claim 2, characterized in that: The support frame (5) comprises a support ring (51) and a support plate (52), at least three support plates (52) are installed on the upper side edge of the support ring (51), the ammonia water tank (1) is installed on the support ring (51), the lower side of the support ring (51) is installed on the lifting mechanism (4), and the weighing instrument (2) is located at the center position of the support ring (51).

4. The ammonia water weighing device in the ammonia water feeding system according to claim 2, characterized in that: The support frame (5) comprises a support plate (52) and a support seat (53), a plurality of support plates (52) are installed on the upper side edge of the support seat (53), the lower side of the support seat (53) is installed on the lifting mechanism (4), and a plurality of channels (531) are formed in the support seat (53), and the weighing instrument (2) is installed on the bottom plate (3) at positions corresponding to the channels (531).

5. The ammonia water weighing device in the ammonia water feeding system according to any one of claims 1-4, characterized in that: The lifting mechanism (4) comprises at least three lifting devices, the lifting device comprises an outer cylinder (401), a speed reducer motor (402), a worm (404), a worm wheel (405), a lead screw (406), an inner cylinder (407) and a nut (408), the outer cylinder (401) is fixedly installed on the bottom plate (3), the upper end of the outer cylinder (401) is movably inserted and connected with the inner cylinder (407), the bottom of the outer cylinder (401) is rotatably installed with the lead screw (406), the lead screw (406) extends upwards and penetrates into the inner cylinder (407), the bottom of the inner cylinder (407) is fixedly installed with the nut (408), the lead screw (406) is threadedly connected with the nut (408), the worm wheel (405) is installed on the lead screw (406) at the lower side of the inner cylinder (407), the worm (404) is rotatably installed in the outer cylinder (401), the worm (404) is in meshing transmission with the worm wheel (405), and the speed reducer motor (402) is in transmission connection with one end of the worm (404).

6. The ammonia water weighing device in the ammonia water feeding system according to claim 5, characterized in that: The lifting mechanism (4) is provided with four lifting devices, the four lifting devices are arranged in a matrix, two of the four lifting devices form a group, and the two lifting devices in each group are in transmission through a speed reducer motor (402); the speed reducer motor (402) has double output shafts, and the double output shafts of the speed reducer motor (402) are in transmission connection with one end of the worm (404) through a transmission rod (403).

7. The ammonia water weighing device in the ammonia water feeding system according to claim 2, characterized in that: The bottom of the support frame (5) is provided with a limiting sleeve (409), and the lifting mechanism (4) is supported in the limiting sleeve (409).

8. The ammonia water weighing device in the ammonia water feeding system according to claim 1, characterized in that: The inner part of the ammonia water tank (1) is provided with at least one vertical rod (8), and the floating plate (7) is slidably sleeved on the vertical rod (8).

9. The ammonia water weighing device in the ammonia water feeding system according to claim 8, characterized in that: The lifting block (81) is slidably installed on the vertical rod (8), and the floating plate (7) is fixedly installed on the lifting block (81).

10. The ammonia water weighing device in an ammonia water feeding system according to claim 9, characterized in that: The spring (82) is installed between the floating plate (7) and the lifting block (81), and the fixed rod (83) passes through the floating plate (7) and the spring (82) and is connected and fixed with the lifting block (81).

Images