CN211904274U - Heat jacket device for instrument - Google Patents

Abstract

A thermal jacket apparatus for a meter, comprising: the temperature control assembly is connected with the external temperature control loop when the thermal jacket device is arranged on the instrument; and the heat insulation assembly is coated outside the temperature control assembly and used for keeping the temperature inside the thermal jacket device, wherein the temperature control assembly comprises a pipeline assembly, a clamping assembly and a positioning assembly, the pipeline assembly surrounds the instrument and is used for allowing temperature control fluid from an external temperature control loop to flow so as to realize temperature control, the pipeline assembly is clamped by the clamping assembly, and the positioning assembly enables the pipeline assembly to be positioned relative to the instrument.

Description

Heat jacket device for instrument

Technical Field

The utility model relates to a heat jacket device for instrument.

Background

This section provides background information related to the present disclosure and is not necessarily prior art.

Detection and control of fluid volumes is often required in activities such as scientific research, production process control, quality management, economic accounting, and trade transfers. With the development of modern science and technology, some metering methods and instruments for directly measuring mass flow, such as coriolis mass flowmeters, have been developed. The Coriolis mass flowmeter is a device for measuring by utilizing the Coriolis force principle that fluid generates direct proportion with mass flow when flowing in a vibrating pipeline, realizes the direct measurement of the mass flow, has the characteristics of high precision and capability of measuring multiple media and multiple process parameters, and is widely applied to industries such as petrifaction, pharmacy, food and the like. When the meter is used in extreme environmental temperature (high or low) conditions or the measured process fluid needs to be maintained in a certain temperature range to ensure its normal flow, it is necessary to apply corresponding temperature control measures, such as a thermal jacket device, to the meter to ensure its measurement accuracy. The heat jacket device is a device which can realize the function of controlling the temperature of fluid in the instrument with high efficiency.

The prior art thermal jacket apparatus comprises a body. The body is made of aluminium, for example, and has an outer contour substantially conforming to the outer contour of the meter so as to cover the outside of the meter, and an inner cavity following the outer contour of the meter. A meter is received in the interior cavity. In particular, the body of the thermal jacket device is provided with open channels at the inlet and outlet flanges of the meter, respectively, allowing the meter to be connected to external pipes while also positioning the thermal jacket device with the inlet and outlet flanges. When the meter is received in the internal cavity, a substantially uniform gap is left between the outer wall of the meter and the inner wall of the internal cavity. A thermal medium (e.g., a thermally conductive mastic) is injected into the internal cavity of the jacket assembly to coat the meter and then cured. The thermal medium (e.g., thermal paste) has good thermal conductivity. The body of the heat jacket device is also provided with a flow channel for temperature control fluid to flow through, and the body is also provided with an inlet port and an outlet port which are communicated with the flow channel. The flow passage inside the body is in fluid communication with an external temperature controlled circuit via the inlet and outlet ports. The temperature control fluid conducts heat with the meter through the body and the heat medium (such as heat conducting daub), so that the temperature of the fluid in the meter is controlled.

The manufacturing process of the thermal jacket device is complex, the manufacturing period is long, and the cost of the thermal jacket device is high. In addition, the gauge with the U-shaped conduit is typically large in size, resulting in a large overall weight of the thermal jacketed device. Therefore, on one hand, the pipeline of the instrument needs to have higher rigidity and strength to support the thermal jacket device, and certain influence is caused on the performance of the instrument; on the other hand, the complexity of installation is increased, and the installation on site is inconvenient.

SUMMERY OF THE UTILITY MODEL

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

An object of the utility model is to provide a heat jacket device for instrument, it has simple structure, simple to operate's characteristics.

In one form, the present invention provides a heat jacket apparatus for a meter, comprising: the temperature control assembly is connected with the external temperature control loop when the thermal jacket device is arranged on the instrument; and the heat insulation assembly is coated outside the temperature control assembly and used for keeping the temperature inside the thermal jacket device, wherein the temperature control assembly comprises a pipeline assembly, a clamping assembly and a positioning assembly, the pipeline assembly surrounds the instrument and is used for allowing temperature control fluid from an external temperature control loop to flow so as to realize temperature control, the pipeline assembly is clamped by the clamping assembly, and the positioning assembly enables the pipeline assembly to be positioned relative to the instrument.

In some configurations, the conduit assembly includes first and second generally symmetrical conduit portions connected together by a clamp assembly and pivoted about a hinge point of the clamp assembly to open and close.

In some configurations, the clamp assembly is generally in the form of an annular plate, and the clamp assembly includes two semi-annular portions for clamping the first and second pipe portions, respectively, the two semi-annular portions being connected together by a hinge that is a hinge point of the clamp assembly.

In some configurations, each semi-annular portion of the clamp assembly includes a semi-annular pipe inner fixation plate and a semi-annular pipe outer fixation plate.

In some configurations, each tube inner fixing plate is provided with an inner notch on its outer periphery, and a corresponding outer notch corresponding to the inner notch is provided on the inner periphery of the corresponding tube outer fixing plate, and when the tube inner fixing plate is mated with the tube outer fixing plate, the corresponding inner notch and the outer notch together form a circular hole or an oblong hole for receiving and clamping the tube assembly.

In some configurations, the inboard and outboard notches may be equally circumferentially spaced.

In some configurations, the positioning assembly is provided with a circular aperture that mates with an outer circular surface of an inlet or outlet flange of the meter.

In some configurations, the positioning assembly includes a first half and a second half attachable together.

In some configurations, the positioning assembly is provided with an aperture to correspondingly receive a portion of the conduit assembly.

In some configurations, a stop is provided below the aperture to restrain the tubing assembly.

In some configurations, the meter has a straight pipe and a U-shaped pipe, and the positioning assembly is provided with an opening through which the U-shaped pipe of the meter passes.

In some configurations, the insulated assembly includes first and second insulated housings attached to one another to form a closed hollow housing.

In some configurations, the insulating assembly is provided with a first circular opening and a second circular opening to position the insulating assembly over an external pipe connected to the meter.

In some configurations, the thermal insulation assembly includes an inner shell portion and an outer shell portion, and an interlayer between the inner shell portion and the outer shell portion is filled with thermal insulation material to achieve the purpose of thermal insulation.

In some configurations, the meter is a coriolis mass flowmeter.

The utility model provides a heat jacket device for having instrument of U type pipeline, its simple structure, easily manufacturing, reduce cost, whole weight is less, has reduced the influence to the instrument performance, has greatly simplified the installation simultaneously.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 is a perspective view of a thermal jacket apparatus for a meter, as installed in the meter, with a portion of the thermal insulating assembly of the thermal jacket apparatus removed for ease of illustration of the interior of the thermal jacket apparatus in accordance with the present invention;

FIG. 2 is a front view of the thermal jacket apparatus shown in FIG. 1;

FIG. 3 is a perspective view of a temperature control assembly of a thermal jacket apparatus in accordance with the present invention, ready for installation in a meter;

FIG. 4 is a side view of the temperature control assembly of the meter and thermal jacket apparatus shown in FIG. 3;

FIG. 5 is an exploded view of the side view shown in FIG. 4;

FIG. 6 is a partially exploded perspective view of the clamping assembly and the conduit assembly of the temperature control assembly of the thermal jacket apparatus according to the present invention;

FIG. 7 is a side view of a clamping assembly of a temperature control assembly of a thermal jacket apparatus according to the present invention;

FIG. 8 is an exploded perspective view of the clamping assembly shown in FIG. 7;

FIG. 9 is an elevation view of the conduit assembly and positioning assembly of the temperature control assembly of the thermal jacket apparatus according to the present invention;

FIG. 10 is a side view of the conduit assembly and positioning assembly of the temperature control assembly of the thermal jacket apparatus according to the present invention;

FIG. 11 is an exploded perspective view of a positioning assembly of a temperature control assembly of a thermal jacket apparatus according to the present invention;

FIG. 12 is a side view of a positioning assembly of a temperature control assembly of a thermal jacket apparatus according to the present invention;

FIG. 13 is an elevation view of a positioning assembly of a temperature control assembly of a thermal jacket apparatus according to the present invention;

FIG. 14 is an elevational view of a portion of an insulating assembly of a thermal jacket apparatus according to the invention;

fig. 15 is a partial cross-sectional view of the insulating assembly shown in fig. 14.

Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings.

The exemplary embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that should not be construed as limiting the scope of the disclosure. In some exemplary embodiments, well-known methods, well-known device structures, and well-known technologies are not described in detail.

When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, the element or layer may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other terms used to describe the relationship between elements (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.) should be interpreted in a similar manner. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

As shown in fig. 1, a thermal jacket apparatus 10 according to the present invention is disposed outside a meter 20, and includes a temperature control assembly 100 and a temperature maintaining assembly 200. In the present embodiment, the meter 20 is a fluid metering meter, in particular a coriolis mass flowmeter. The meter 20 includes a straight pipe 21 and a U-shaped pipe 22, and is connected to an external pipe 30 via an inlet flange 23 and an outlet flange 24 at both ends of the straight pipe 21. Hereinafter, the plane in which the axis of the straight pipe 21 and the axis of the U-shaped pipe 22 lie is referred to as an axial plane.

As shown in fig. 1, 2 and 14, the thermal insulation assembly 200 is formed as a closed hollow casing, which is covered outside the temperature control assembly 100 and is not in contact with the temperature control assembly 100, so as to maintain the temperature inside the thermal jacket device 10. The insulation assembly 200 may include a first insulation housing 210 and a second insulation housing 220 (not shown) that are symmetrical about an axial plane. The first insulated housing 210 and the second insulated housing 220 may be attached together via fasteners known to those skilled in the art, such as screws, rivets, etc., or other known means. The first insulated housing 210 is shown in fig. 14. In one embodiment, the insulation assembly 200 is provided at a lower portion thereof with a first circular opening 230 and a second circular opening 240 at opposite sides thereof at a position corresponding to the outer pipe 30 such that the outer pipes 30 at both sides of the meter 20 pass through the first circular opening 230 and the second circular opening 240, respectively, thereby positioning the insulation assembly 200 on the outer pipes 30. It is contemplated by those skilled in the art that other configurations may be provided at first circular opening 230 and second circular opening 240 to allow insulation assembly 200 to mate with outer conduit 30. It is also contemplated by those skilled in the art that the insulating assembly 200 may be further secured to the field lines at other locations by, for example, tethering. As shown in fig. 14 and 15, the thermal insulation assembly 200 may include an inner shell 250 and an outer shell 260, and an interlayer between the inner shell 250 and the outer shell 260 is filled with a thermal insulation material 270 for thermal insulation. The insulating material 270 may be selected according to the actual application temperature, insulating requirements, and the like. Appropriate sealing between the first insulated housing 210 and the second insulated housing 220, and between the first circular opening 230 and the second circular opening 240 and the outer conduit 30 may be performed using means known to those skilled in the art. It is also known to those skilled in the art that additional flexible covers may be provided outside of the insulating assembly 200 for better insulation.

Referring to fig. 1, 2 and 5, temperature control assembly 100 is disposed outside of meter 20, inside of an insulating assembly 200, including a tube assembly 110, a clamping assembly 120, and a positioning assembly 130. The tubing assembly 110 is flowed through by a temperature control fluid from an external temperature control loop (not shown) to achieve temperature control. After the thermal jacket apparatus 10 is installed in the meter 20, the external temperature control loop is connected to the tubing assembly 110 via a hole in the insulating assembly 200 or a fluid fitting that passes through the insulating assembly 200. The thermal jacket apparatus 10 according to the present invention does not include this external temperature control loop. The temperature control fluid exchanges heat with the fluid in the meter 20 via the pipe assembly 110, the heat medium (e.g., air) in the temperature maintenance assembly 200, and the pipe of the meter 20, thereby controlling the temperature of the fluid in the meter 20. As described in more detail below, the conduit assembly 110 includes two portions that are generally symmetrical about an axial plane, both portions being clamped by the clamp assembly 120 and connected together by a hinge of the clamp assembly 120 to enable pivotal movement about a hinge point. With this pivoting movement, two portions of the conduit assembly 110 are mounted around the meter 20. The positioning assembly 130 positions the conduit assembly 110 relative to the meter 20. For example, positioning assembly 130 supports temperature control assembly 100 on the outer circumferential surfaces of inlet flange 23 and outlet flange 24 of meter 20.

In particular, as shown in fig. 3, 4 and 5, the conduit assembly 110 is in the form of a serpentine conduit including first and second substantially identical conduit portions 112 and 114. Each of the first and second conduit portions 112, 114 is bent back and forth by a tube (e.g., a single tube) generally following the outer shape of one side of the meter 20, particularly the U-shaped conduit 22 of the meter 20 into a plurality of U-shapes. Accordingly, the pipe assembly 110 is also referred to in the art as a "companion pipe". In the present embodiment, each of the first and second duct portions 112 and 114 is formed by bending a single pipe, and both end portions of the bent single pipe are located on the same axial side. Also, the pipe assembly 110 is provided at both ends of the pipe with pipe fittings 111 (see fig. 5) attached to the positioning assembly 130. It is contemplated by those skilled in the art that the conduit assembly 110 may be formed in other shapes, such as a plurality of circular rings, rather than a U-shape, so long as it surrounds or encloses the meter 20. The first and second conduit portions 112, 114 are connected together by a clamp assembly 120 and pivot about a hinge point of the clamp assembly 120 to open and close, enabling the conduit assembly 110 to be installed to substantially surround the meter 20 when the thermal clip device 10 is installed to the meter 20. The materials and dimensions of the tubes of the tubing assembly 110 may be selected according to the particular pressure rating.

As shown in fig. 6, 7 and 8, the clamp assembly 120 is generally in the form of an annular plate including two semi-annular portions for clamping the first and second pipe portions 112 and 114, respectively. Each semi-annular portion of the clamp assembly 120 includes a tube inner retainer plate 122 and a tube outer retainer plate 124. The pipe inner fixing plate 122 is formed in a semicircular shape, and the pipe outer fixing plate 124 is also formed in a semicircular shape. Each of the semicircular pipe inner fixing plates 122 is connected at both ends thereof to the other pipe inner fixing plate 122 via a hinge (e.g., a rivet) 126 and at least one (two in the present embodiment) fixing member (e.g., a rivet) 128, respectively. In this embodiment, the hinge 126 of the clamp assembly 120 is in the form of a rivet. However, it is also contemplated by those skilled in the art to select a bolt, pin, or hinge mechanism, etc. as the hinge member 126.

As shown in fig. 8, each pipe inside fixing plate 122 is provided on an outer circumferential edge thereof with an inside recess 123 for receiving a pipe, and an inside recess 125 corresponding to the inside recess 123 is provided on an inner circumferential edge of the corresponding pipe outside fixing plate 124. In the present embodiment, each tube inside fixing plate 122 has four inside recesses 123, and each tube outside fixing plate 124 has four outside recesses 125. For example, the inner notches 123 and the outer notches 125 may be equally spaced in the circumferential direction. As shown in fig. 7, when the tube inside fixing plate 122 is mated with the tube outside fixing plate 124, the corresponding inside recess 123 and outside recess 125 together form a circular or oblong hole for receiving and gripping a tube of the tube assembly 110. As shown in fig. 6, when the pipe assembly 110 is clamped by the clamping assembly 120, the pipe of the pipe assembly 110 is inserted into the inner recess 123 of the pipe inner fixing plate 122 and the outer recess 125 of the pipe outer fixing plate 124, thereby receiving and clamping the pipe of the pipe assembly 110 and positioning the pipe around the meter 20. However, neither the tube assembly 110 nor the clamp assembly 120 is connected, or at least not rigidly connected, to the U-shaped tube 22 of the meter 20, and therefore does not interfere with the vibration of the U-shaped tube 22 of the meter 20, particularly if the meter 20 is a coriolis mass flowmeter, thereby reducing the performance impact of the thermal jacket apparatus 10 on the meter 20.

Fig. 9 and 10 show a state in which the pipe assembly 110 is mounted to the positioning assembly 130. Two positioning assemblies 130 are arranged at positions close to the inlet flange 23 and the outlet flange 24, respectively, in the axial direction of the straight pipe line 21 of the meter 20. As shown in fig. 11, the positioning member 130 has a substantially square box shape, but does not include a bottom surface and a surface facing inward in the axial direction of the meter 20. A round hole 131 that fits the outer circumferential surface of the inlet flange 23 or the outlet flange 24 of the straight pipe line 21 of the meter 20 is provided on the face of the positioning assembly 130 that faces outward in the axial direction of the straight pipe line 21 of the meter 20. One skilled in the art will appreciate that the positioning assembly 130 may take other shapes.

The positioning assembly 130 includes a first half 132 and a second half 134 separated along an axial plane. A generally T-shaped opening 133 is provided in a top surface of the first half 132 for receiving a lower portion of one of the first and second conduit portions 112, 114. The second half 134 has two obliquely oblong openings 135 in its top surface for receiving a lower portion of the other of the first and second conduit portions 112, 114. An L-shaped stop 136 is provided adjacent the apertures 133, 135, particularly below the apertures 133, 135, to vertically restrain the tube assembly 110 in the figures. The size, relative orientation, etc. of the apertures 133, 135 and the stop 136 are set according to the type and size, etc. of the tubes of the tubing assembly 110. In addition, semicircular openings are provided on the top surfaces of the first half body 132 and the second half body 134, respectively, thereby forming a top surface opening 137 for passing through the U-shaped pipe 22 of the meter 20 when the first half body 132 and the second half body 134 are attached together. Circular openings 138, for example two, are provided on the side of the first half 132. The opening 138 is used to mount the plumbing fitting 111 of the plumbing assembly 110 (shown in FIG. 10). The pipe fitting 111 communicates with an external temperature control circuit (not shown). On the plane in which both the first half 132 and the second half 134 are attached, for example, three bent attachment portions 139 are provided for attaching the first half 132 and the second half 134 with attachment members such as screws, rivets, etc. by means of the attachment portions 139.

According to the utility model discloses a heat jacket device 10 simple structure easily manufacturing, reduce cost. Because no fluid flow channels are provided in the insulating assembly 200, the overall weight of the thermal jacketed device 10 is low, thereby reducing the impact on the performance of the meter 20. In addition, according to the present invention, the thermal jacket apparatus 10 can be delivered as a unitary assembly for ease of field installation.

The foregoing description of embodiments has been presented for purposes of illustration and description. These descriptions are not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The various elements or features of a particular embodiment may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Claims (15)

1. A thermal jacket apparatus for a meter, comprising:

the temperature control assembly is connected with an external temperature control loop when the thermal jacket device is installed on the instrument; and

the heat preservation component is coated outside the temperature control component and used for keeping the temperature inside the thermal jacket device,

wherein, the accuse temperature subassembly includes pipe assembly, centre gripping subassembly and locating component, the pipe assembly surrounds the instrument installation supplies to come from the accuse temperature fluid of outside accuse temperature return circuit flows and realizes the accuse temperature, pipe assembly by the centre gripping subassembly centre gripping, locating component makes pipe assembly for the instrument location.

2. The heat jacket apparatus according to claim 1, wherein the tubing assembly comprises first and second substantially symmetrical tubing portions connected together by the clamping assembly and pivoting open and closed about a hinge point of the clamping assembly.

3. A jacket apparatus according to claim 2, wherein the clamping assembly is in the form of an annular plate, and the clamping assembly comprises two semi-annular portions for clamping the first and second pipe portions, respectively, the two semi-annular portions being connected together by a hinge as the hinge point of the clamping assembly.

4. The thermal jacket apparatus of claim 3, wherein each semi-annular portion of said clamping assembly comprises a semi-annular pipe inner securing plate and a semi-annular pipe outer securing plate.

5. The thermal jacket device according to claim 4, wherein each of said pipe inside fixing plates is provided with an inside notch on an outer peripheral edge thereof, and an outside notch corresponding to said inside notch is provided on an inner peripheral edge of the corresponding pipe outside fixing plate, and when said pipe inside fixing plate is mated with said pipe outside fixing plate, the corresponding inside notch and said outside notch together form a circular hole or an oblong hole for receiving and clamping said pipe assembly.

6. The thermal jacket apparatus of claim 5, wherein said inboard notches and said outboard notches are equally circumferentially spaced.

7. A thermal jacketing apparatus according to claim 1, wherein the locating means is provided with a circular aperture which mates with the outer circumferential surface of the inlet or outlet flange of the instrument.

8. A thermal jacketing apparatus according to claim 1 wherein the positioning assembly comprises a first half and a second half attachable together.

9. A jacket apparatus according to claim 1, wherein the positioning assembly is provided with an aperture to receive a portion of the tubing assembly accordingly.

10. A jacketing device according to claim 9 wherein a stop is provided below said opening to restrain said tubing assembly.

11. A jacketing apparatus according to claim 1 wherein the meter has a straight pipe and a U-shaped pipe, the locating assembly being provided with an aperture through which the U-shaped pipe of the meter passes.

12. The thermally jacketed device of claim 1, wherein the thermal insulation assembly comprises a first and second thermal insulation shell attached to each other to form a closed hollow shell.

13. The thermal jacketing apparatus of claim 1, wherein the insulation assembly is provided with a first circular opening and a second circular opening to position the insulation assembly on an external pipe connected to the meter.

14. The heat jacket device according to claim 1, wherein the heat insulating member comprises an inner shell portion and an outer shell portion, and an interlayer between the inner shell portion and the outer shell portion is filled with a heat insulating material for heat insulation.

15. The thermal jacket apparatus according to claim 1, wherein said meter is a coriolis mass flowmeter.

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