CN209783701U

CN209783701U - Liquid level detecting device

Info

Publication number: CN209783701U
Application number: CN201920744250.4U
Authority: CN
Inventors: 程永平; 杨忠华; 任轶丽
Original assignee: China International Marine Containers Group Co Ltd; Yantai CIMC Raffles Offshore Co Ltd; CIMC Offshore Engineering Institute Co Ltd
Current assignee: China International Marine Containers Group Co Ltd; Yantai CIMC Raffles Offshore Co Ltd; CIMC Offshore Engineering Institute Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2019-12-13
Anticipated expiration: 2029-05-21

Abstract

The utility model provides a liquid level detection device, including protection dustcoat, liquid level detector and cable packing box. The inside of the protection outer cover is provided with an accommodating space, the side part of the protection outer cover convexly extends to form a cable tube seat, the cable tube seat is provided with a wire passing hole, the wire passing hole is communicated with the accommodating space, and the water pressure resistance of the protection outer cover is not less than 0.5 MPa; the liquid level detector comprises an electrical unit, a protective sleeve connected to the bottom of the electrical unit, a floating ball arranged in the protective sleeve and a cable used for being connected with the outside; the floating ball is electrically connected with the electric unit; the electric unit is arranged in the accommodating space; the protective sleeve extends out of the bottom of the protective outer cover and is connected with the bottom of the protective outer cover in a sealing way; one end of the cable is connected with the electric unit, the other end of the cable extends out of the wire passing hole of the cable tube seat and extends outwards, and the waterproof grade of the cable is not lower than IP 68; and the cable stuffing box covers the cable and the wire through hole to seal the wire through hole, and the waterproof grade of the cable stuffing box is not lower than IP 68.

Description

Liquid level detecting device

Technical Field

The utility model relates to a level measurement field, in particular to liquid level detection device.

Background

in the semi-submersible marine ranch or semi-submersible ship, the liquid level in each liquid tank needs to be mastered and controlled, and the stability and safety of the semi-submersible marine ranch or semi-submersible ship are further ensured.

However, on certain ship types, limited by the layout of the tanks or by the basic design, the level probes require a submerged installation, in which case the level probes need to be protected to IP68 for both their electrical units and their junction blocks, whereas level probes using IP 68-grade electrical units and junction blocks are costly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof grade reaches IP68 and the lower liquid level detection device of cost to the higher problem of cost when the protection level is IP68 among the solution prior art.

In order to solve the technical problem, the utility model provides a liquid level detection device, include: the protective cover is internally provided with an accommodating space, a cable tube seat is convexly extended on the side part of the protective cover, a wire passing hole is arranged on the cable tube seat and communicated with the accommodating space, and the water pressure resistance of the protective cover is not less than 0.5 MPa; the liquid level detector comprises an electrical unit, a protective sleeve connected to the bottom of the electrical unit, a floating ball arranged in the protective sleeve and a cable used for being connected with the outside; the floating ball is electrically connected with the electric unit; the electric unit is arranged in the accommodating space; the protective sleeve extends out of the bottom of the protective outer cover and is connected with the bottom of the protective outer cover in a sealing mode; one end of the cable is connected with the electric unit, the other end of the cable extends out of the wire passing hole of the cable tube seat and extends outwards, and the waterproof grade of the cable is not lower than IP 68; and the cable stuffing box covers the cable and the wire through hole to seal the wire through hole, and the waterproof grade of the cable stuffing box is not lower than IP 68.

In one embodiment, the protective outer cover further comprises a cylinder, a top cover covering the top of the cylinder, a bottom plate blocking the bottom of the cylinder, and a side pipe protruding out of the side of the cylinder; the bottom plate is provided with a first through hole for the protective sleeve to pass through, and the protective sleeve penetrates through the first through hole and is connected with the bottom plate in a sealing manner; the cable tube seat is connected to the tail end of the side tube.

In one embodiment, a seat plate is further fixed on the bottom plate, the seat plate is located in the cylinder, a second through hole is formed in the seat plate, and the second through hole is communicated with the first through hole; the bedplate is used for supplying the liquid level detector is connected fixedly, and the protective sleeve penetrates through the second through hole and the first through hole and is connected with the bedplate in a sealing manner.

In one embodiment, the liquid level detector further comprises a mounting plate connected between the electrical unit and the protective sleeve; the mounting plate is detachably connected with the seat plate through a fastener; a first gasket is arranged between the mounting plate and the seat plate.

in one embodiment, a gap is formed between the mounting plate and the inner side wall of the cylinder body; the periphery of bedplate with the periphery parallel and level of mounting panel.

In one embodiment, the protection housing further comprises a top flange protruding from the top of the periphery of the cylinder and a bottom flange protruding from the bottom of the periphery of the cylinder, the top cover is connected with the top flange, and the bottom plate is connected with the bottom flange; a second gasket is arranged between the top flange and the top cover; and a third gasket is arranged between the bottom flange and the bottom plate.

in one embodiment, one end of the side pipe is fixedly connected with the cylinder, the other end of the side pipe is connected with a side flange for connecting the cable pipe seat, and the water pressure resistance of the side flange is not less than 0.5 MPa.

In one embodiment, a socket flange is fixedly connected to one end of the cable socket, the water pressure resistance of the socket flange is not less than 0.5MPa, and the socket flange is detachably connected with the side flange through a fastener to realize the connection between the cable socket and the side pipe; and a fourth gasket is arranged between the side flange and the pipe seat flange.

In one embodiment, the top of the top cover is connected with a handle, and the handle protrudes out of the top cover.

In one embodiment, the cable gland comprises a body, a compression expansion sealing ring and a gland; the inside of the body is provided with a cavity, two ends of the body are provided with openings for the cable to pass through, and one end of the body is connected with the cable tube seat; the pressing expansion sealing ring is embedded in the cavity and abutted against the inner side wall of the body, the pressing expansion sealing ring is provided with a cable hole for a cable to pass through, the cable hole is communicated with the wire passing hole, and the gland cover is arranged at the other end of the body and presses the pressing expansion sealing ring.

According to the above technical scheme, the utility model discloses an advantage lies in with positive effect:

the utility model discloses a liquid level detection device is including protection dustcoat and liquid level detector, set up the electric unit of liquid level detector in the accommodation space of protection dustcoat, and stretch out the accommodation space through the cable outside and with external connection, the cable packing box is connected in the end of cable tube socket and makes the accommodation space sealed, and the water pressure resistance of protection dustcoat is not less than 0.5MPa, the waterproof grade of cable and cable packing box all is not less than IP68, consequently, this liquid level detection device's waterproof grade is not less than IP68, can submerge in the aquatic completely, the electric unit receives the protection of protection dustcoat and can adopt waterproof grade to be less than the electric unit of IP68, and then the cost is practiced thrift.

Drawings

FIG. 1 is a front view of an embodiment of the liquid level detecting device of the present invention;

FIG. 2 is a top view of an embodiment of the liquid level detecting device of the present invention;

Wherein the reference numerals are as follows: 1. a liquid level detection device; 11. a liquid level detector; 111. an electrical unit; 1111. a cable interface; 112. mounting a plate; 113. a floating ball; 114. protecting the sleeve; 115. a cable; 12. a protective outer cover; 120. a barrel; 121. a top flange; 1211. a second gasket; 122. a top cover; 1221. a handle; 123. a bottom flange; 1231. a third gasket; 124. a base plate; 125. a seat plate; 1251. a first gasket; 126. a side tube; 127. a side flange; 1271. a fourth gasket; 128. a cable socket; 129. a socket flange; 13. a cable stuffing box; 131. a body; 132. compressing the expansion sealing ring; 133. and (7) pressing the cover.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.

The utility model provides a liquid level detection device 1 can submerge in aqueous completely and carry out the exploration of liquid level, is applicable to in semi-submerged formula marine ranch or the semi-submerged formula boats and ships.

Referring to fig. 1 and 2, the liquid level detection apparatus 1 includes a protective housing 12, a liquid level detector 11, and a cable stuffing box 13.

The protective enclosure 12 includes a barrel 120, a top flange 121, a top cover 122, a seat plate 125, a bottom flange 123, a bottom plate 124, a side tube 126, a side flange 127, a cable seat 128, and a seat flange 129.

The cylinder 120 is cylindrical and has an upper and lower opening. Specifically, the water pressure resistance of the cylinder 120 is not less than 5 MPa. For example, a seamless steel pipe of a106 gr.b having a wall thickness of 3.91mm can be used safely 50m below the water surface for the cylinder 120.

The top flange 121 is protruded from the top of the cylinder 120. The top flange 121 has a water pressure resistance of not less than 5MPa, and can be safely used 50m below the water surface. Specifically, the top flange 121 is provided with a plurality of first coupling holes along a circumferential direction thereof. In this embodiment, the top flange 121 is welded to the barrel 120. In other embodiments, the top flange 121 may also be integrally formed with the barrel 120.

The top cover 122 is coupled to the top flange 121 such that the top cover 122 covers the top of the can 120. In this embodiment, the top cover 122 is a flange, and the water pressure resistance of the top cover 122 is not less than 5MPa, so that the top cover can be safely used 50m below the water surface.

Specifically, the top cover 122 is provided with a plurality of first mounting holes along a circumferential direction thereof. The first mounting hole corresponds the setting with first connecting hole to realize through the fastener that top cap 122 and top flange 121 can dismantle being connected, and then realize being connected can dismantling of top cap 122 and barrel 120.

The fastener comprises a bolt and a nut, when the assembly is needed, the first connecting hole corresponds to the first mounting hole, the bolt is inserted into the first connecting hole and the first mounting hole, and the nut is screwed up; when the bolt needs to be disassembled, the nut is unscrewed and the bolt is taken out.

A second gasket 1211 is disposed between the top cover 122 and the top flange 121 to increase the sealing performance between the top cover 122 and the top flange 121. In this embodiment, the second gasket 1211 is made of nitrile rubber. In other embodiments, the second gasket 1211 may also be made of viton, silicone rubber, ethylene propylene rubber, or viton.

Further, a handle 1221 is connected to the top of the top cover 122, and the handle 1221 protrudes from the top of the top cover 122, so that the top cover 122 can be opened by gripping the handle 1221 with a hand. Specifically, the number of the handles 1221 is two, and the two handles 1221 are symmetrically arranged with respect to the center of the top cover 122.

The handle 1221 includes a cross bar and vertical bars connected to two ends of the cross bar and extending downward, the bottom ends of the vertical bars are fixedly connected to the top cover 122, and when the cross bar is forced upward, the top cover 122 is driven to move upward and leave the barrel 120.

The bottom flange 123 is protruded from the outer circumference of the bottom of the cylinder 120. The bottom flange 123 has a water pressure resistance of not less than 0.5MPa, and can be safely used 50m below the water surface. Specifically, the bottom flange 123 is provided with a plurality of second coupling holes along a circumferential direction thereof. In this embodiment, the bottom flange 123 is welded to the barrel 120. In other embodiments, the bottom flange 123 may also be integrally formed with the barrel 120.

The bottom plate 124 is connected to the bottom flange 123 such that the bottom plate 124 is sealed to the bottom of the cylinder 120. In this embodiment, the bottom plate 124 is a flange, and the water pressure resistance of the bottom plate 124 is not less than 5MPa, so that the water-cooled water heater can be safely used 50m below the water surface.

Specifically, the bottom plate 124 is provided with a first through hole, and the periphery of the first through hole is provided with a plurality of second mounting holes. The second mounting hole and the second connecting hole are correspondingly arranged, the detachable connection of the bottom plate 124 and the bottom flange 123 is realized through a fastener, and the detachable connection of the bottom plate 124 and the cylinder 120 is further realized.

A third gasket 1231 is further disposed between the bottom plate 124 and the bottom flange 123 to increase the sealing performance between the bottom plate 124 and the bottom flange 123. In this embodiment, the third gasket 1231 is made of nitrile rubber. In other embodiments, the third gasket 1231 may also be made of fluororubber, silicone rubber, ethylene propylene rubber, or viton.

the base plate 125 is fixedly connected to the bottom plate 124 for connecting with the liquid level detector 11 to fix the liquid level detector 11. In this embodiment, the seat plate 125 is located in the accommodating space and has a gap with the inner sidewall of the cylinder 120. Specifically, the seat plate 125 is provided with a second through hole, which has the same size as the first through hole and is communicated with the first through hole. The periphery of the second through hole is also provided with a plurality of third connecting holes.

The side tube 126 protrudes from the side of the cylinder 120 and communicates with the accommodating space. Specifically, the side tube 126 is hollow and communicates with the accommodating space.

The water pressure resistance of the side pipe 126 is not less than 0.5 MPa. For example, a seamless steel pipe of a106 gr.b having a wall thickness of 3.91mm is used as the side pipe 126, and can be safely used 50m below the water surface. In this embodiment, the side tube 126 is welded to the cylinder 120. In other embodiments, the side tube 126 and the barrel 120 may also be integrally formed.

Side flanges 127 are attached to the ends of side tubes 126. Specifically, a side flange 127 is provided protruding from the outer periphery of the end of the side pipe 126. The side flange 127 has a water pressure resistance of not less than 0.5MPa, and can be safely used 50m below the water surface. The side flange 127 is provided with a plurality of fourth coupling holes along a circumferential direction thereof.

The cable socket 128 is provided at the end of the side tube 126. The water pressure resistance of the cable tube seat 128 is not less than 0.5MPa, and the cable tube seat can be safely used 50m below the water surface.

The socket flange 129 is fixedly connected to the cable socket 128. The stem flange 129 has a water pressure resistance of not less than 5MPa, and can be safely used 50m below the water surface. Specifically, the socket flange 129 is provided with a plurality of fourth mounting holes corresponding to the fourth mounting holes, and the socket flange 129 and the side flange 127 are detachably connected by a fastener, so as to detachably connect the cable socket 128 and the cylinder 120. In this embodiment, the socket flange 129 is welded to the cable socket 128.

A fourth gasket 1271 is disposed between the socket flange 129 and the side flange 127 to increase the seal between the socket flange 129 and the side flange 127. In this embodiment, the fourth pad 1271 is made of nitrile rubber. In other embodiments, the fourth gasket 1271 may also be made of fluororubber, silicone rubber, ethylene propylene rubber, or viton.

The liquid level detector 11 includes an electric unit 111, a mounting plate 112, a float ball 113, a protective sleeve 114, a cable 115, and a control unit, and detects and controls the liquid level by the position of the float ball 113. For example, the liquid level detector 11 has a preset value of liquid level, when the float ball 113 reaches the preset value of liquid level, the electrical unit 111 receives the liquid level information and sends the liquid level information to the control unit through the cable 115, and the control unit controls adding water or discharging water, etc. The liquid level detector 11 also comprises an alarm unit which emits an alarm signal when the float 113 reaches a preset level value.

The electrical unit 111 is located in the accommodating space of the protective housing 12, and specifically includes a sensor and a junction box. The junction box is electrically connected to the sensor and has a cable interface 1111.

The mounting plate 112 is fixed to the bottom of the junction box, and the outer periphery of the mounting plate 112 exceeds the outer periphery of the junction box. In this embodiment, a space is provided between the outer periphery of the mounting plate 112 and the inner side wall of the barrel 120, so as to facilitate the installation of the liquid level detector 11. Specifically, the mounting plate 112 is provided with a plurality of third mounting holes along the circumferential direction thereof, the third mounting holes correspond to third connecting holes on the seat plate 125, and the mounting plate 112 and the seat plate 125 are detachably connected by fasteners.

In this embodiment, the mounting plate 112 and the seat plate 125 are circular and have the same diameter. In other embodiments, the mounting plate 112 and the seat plate 125 may also be square, hexagonal, or other irregular shapes. The two dimensions may or may not be uniform.

A first gasket 1251 is provided between the mounting plate 112 and the seat plate 125 to increase the sealing between the mounting plate 112 and the seat plate 125. In this embodiment, the first gasket 1251 is made of nitrile rubber. In other embodiments, the first gasket 1251 may also be made of fluororubber, silicone rubber, ethylene propylene rubber, or viton.

A protective sleeve 114 is secured to the bottom of the mounting plate 112. When the mounting plate 112 is mounted to the seat plate 125, the protection sleeve 114 passes through the first through hole of the seat plate 125 and the second through hole of the base plate 124 and protrudes downward.

The float ball 113 is provided in the protective sleeve 114 and can move up and down in the protective sleeve 114. The float 113 is electrically connected to the sensor and can transmit information to the sensor.

The cable 115 has one end connected to the cable port 1111 of the junction box and the other end extending through the side tube 126, the side flange 127, the socket flange 129 and the cable socket 128 to be outwardly extended and connected to the control unit. The cable 115 is rated IP68 for water resistance and therefore can be used in water.

The control unit is installed in the water-free area, is connected to the underwater electric unit 111 through a cable 115, and receives liquid level information and transmits a control command.

The cable gland 13 covers the cable 115 and the wire passage hole to seal the wire passage hole. Specifically, the cable stuffing box 13 has a waterproof rating not lower than IP68 and thus can be used in water.

the cable gland 13 includes a body 131, a compression expansion seal ring 132 and a gland 133.

The body 131 has a first end and a second end. With reference to the direction of view of fig. 1, the first end is the left end in the drawing and the second end is the right end in the drawing.

A first end of the body 131 is connected to the cable socket 128. The body 131 is provided with a wire passing hole for the cable 115 to pass through, and the axis of the wire passing hole is parallel to the direction from the first end to the second end.

The body 131 is further provided with a cavity, and the cavity is communicated with the wire through hole. In this embodiment, the cavity has a large end surface and a small end surface, the large end surface being adjacent to the second end, the small end surface being adjacent to the first end.

Compress tightly on expansion seal ring 132 inlays the interior perisporium in establishing the cavity, and compress tightly and offer the line hole of crossing that supplies the cable to pass through on the expansion seal ring 132. In this embodiment, the width of the compression expansion seal ring 132 is reduced along the direction from the second end to the first end, and the compression expansion seal ring 132 is matched with the section of the cavity, so that the radial pressure of the compression expansion seal ring 132 can be increased, and the sealing capability is improved.

The gland 133 is disposed at the second end of the body 131, and the gland 133 abuts against and compresses the compression expansion seal ring 132. The cover 133 is opened with a wire passing hole for the cable 115 to pass through.

During installation, the cable 115 firstly passes through the wire passing hole of the body 131, the wire passing hole of the compression expansion sealing ring 132 and the wire passing hole of the gland 133, the gland 133 is screwed tightly, the gland 133 compresses and extrudes the compression expansion sealing ring 132, and the compression expansion sealing ring 132 fills the gap between the cable 115 and the body 131 to ensure the sealing effect.

In the present embodiment, the top of the protection cover 12 is sealed by the top cover 122, the top flange 121, and the second gasket 1211, the side is sealed by the cable stuffing box 13, the side flange 127, the socket flange 129, and the fourth gasket 1271, and the bottom is sealed by the seat plate 125 fixed to the bottom plate 124, the bottom flange 123, and the third gasket 1231, so that a sealed accommodation space is obtained.

The electric unit 111 of the liquid level detector 11 is placed in the sealed accommodating space, so that the waterproof grade of the liquid level detection device 1 is not lower than IP68, and electric elements such as a sensor and a junction box with the waterproof grade lower than IP68 can be used, and the cost is saved.

The utility model discloses a liquid level detection device is including protection dustcoat and liquid level detector, set up the electric unit of liquid level detector in the accommodation space of protection dustcoat, and stretch out the accommodation space through the cable outside and with external connection, the cable packing box is connected in the end of cable tube socket and is made the accommodation space sealed, and the water pressure resistance of protection dustcoat is not less than 0.5MPa, the waterproof grade of cable and cable packing box all is not less than IP68, consequently, this liquid level detection device's waterproof grade is not less than IP68, and can submerge in the aquatic completely, the electric unit receives the protection of protection dustcoat and can adopt waterproof grade to be less than the electric unit of IP68, and then the cost is practiced thrift.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A liquid level detecting device, comprising:

The protective cover is internally provided with an accommodating space, a cable tube seat is convexly extended on the side part of the protective cover, a wire passing hole is arranged on the cable tube seat and communicated with the accommodating space, and the water pressure resistance of the protective cover is not less than 0.5 MPa;

The liquid level detector comprises an electrical unit, a protective sleeve connected to the bottom of the electrical unit, a floating ball arranged in the protective sleeve and a cable used for being connected with the outside; the floating ball is electrically connected with the electric unit; the electric unit is arranged in the accommodating space; the protective sleeve extends out of the bottom of the protective outer cover and is connected with the bottom of the protective outer cover in a sealing mode; one end of the cable is connected with the electric unit, the other end of the cable extends out of the wire passing hole of the cable tube seat and extends outwards, and the waterproof grade of the cable is not lower than IP 68;

And the cable stuffing box covers the cable and the wire through hole to seal the wire through hole, and the waterproof grade of the cable stuffing box is not lower than IP 68.

2. The liquid level detecting device of claim 1, wherein the protective cover further comprises a barrel, a top cover covering the top of the barrel, a bottom plate blocking the bottom of the barrel, and a side tube protruding from the side of the barrel; the bottom plate is provided with a first through hole for the protective sleeve to pass through, and the protective sleeve penetrates through the first through hole and is connected with the bottom plate in a sealing manner; the cable tube seat is connected to the tail end of the side tube.

3. The liquid level detecting device as claimed in claim 2, wherein a seat plate is further fixed on the bottom plate, the seat plate is located in the cylinder, a second through hole is formed in the seat plate, and the second through hole is communicated with the first through hole; the bedplate is used for supplying the liquid level detector is connected fixedly, and the protective sleeve penetrates through the second through hole and the first through hole and is connected with the bedplate in a sealing manner.

4. the fluid level detection device of claim 3, further comprising a mounting plate connected between the electrical unit and the protective sleeve; the mounting plate is detachably connected with the seat plate through a fastener;

a first gasket is arranged between the mounting plate and the seat plate.

5. The fluid level detection device of claim 4, wherein a gap is provided between the mounting plate and an inner side wall of the barrel;

The periphery of bedplate with the periphery parallel and level of mounting panel.

6. The fluid level detection apparatus of claim 2, wherein the protective housing further comprises a top flange protruding from the top of the outer periphery of the barrel and a bottom flange protruding from the bottom of the outer periphery of the barrel, the top cover is connected to the top flange, and the bottom plate is connected to the bottom flange;

a second gasket is arranged between the top flange and the top cover; and a third gasket is arranged between the bottom flange and the bottom plate.

7. the liquid level detecting device of claim 2, wherein one end of the side tube is fixedly connected with the barrel, the other end of the side tube is connected with a side flange for connecting the cable tube seat, and the water pressure resistance of the side flange is not less than 0.5 MPa.

8. The liquid level detection device of claim 7, wherein a socket flange is fixedly connected to one end of the cable socket, the water pressure resistance of the socket flange is not less than 0.5MPa, and the socket flange is detachably connected to the side flange through a fastener, so that the cable socket is connected to the side pipe;

And a fourth gasket is arranged between the side flange and the pipe seat flange.

9. The fluid level detection device of claim 2, wherein a handle is attached to the top of the top cover, the handle protruding out of the top cover.

10. The fluid level detection device of claim 1, wherein the cable gland includes a body, a compression expansion seal ring, and a gland; the inside of the body is provided with a cavity, two ends of the body are provided with openings for the cable to pass through, and one end of the body is connected with the cable tube seat; the pressing expansion sealing ring is embedded in the cavity and abutted against the inner side wall of the body, the pressing expansion sealing ring is provided with a cable hole for a cable to pass through, the cable hole is communicated with the wire passing hole, and the gland cover is arranged at the other end of the body and presses the pressing expansion sealing ring.