CN216744890U - Explosion-proof type pipeline heater - Google Patents

Abstract

The utility model discloses an explosion-proof pipeline heater, which comprises a heater body, wherein the heater body comprises a heating shell and a heating assembly, the heating assembly is arranged at the top position of the heater shell, one side of the heating shell is provided with an air inlet, the other side of the heating shell is provided with a buffer valve, the buffer valve is provided with a buffer pipeline, the buffer pipeline is connected with a lower combined piece and a movable cover body, the lower combined piece is attached to the outer wall of the movable cover body, an adaptive sliding chute is arranged at the position where the lower combined piece is attached to the movable cover body, the movable cover body is arranged at the upper part of the lower combined piece, the upper cover body is also provided with an exhaust part, the exhaust part protrudes outwards, the upper cover body and the lower combined piece are provided with openings, the openings of the upper cover body are adapted to the openings of the lower combined piece, and the pipeline heater is protected safely, meanwhile, the service life of the buffer valve is prolonged.

Description

Explosion-proof type pipeline heater

Technical Field

The utility model relates to the technical field of heaters, in particular to an explosion-proof pipeline heater.

Background

The pipeline heater is an energy-saving device for preheating substances, is arranged in front of the substance device, and is used for directly heating the substances, so that the substances are circularly heated at high temperature, and the aim of saving energy is finally fulfilled. It is widely used in preheating fuel oil such as heavy oil, asphalt, and clear oil. The pipeline heater consists of two parts, including the main body and the control system, the heating element is made of stainless steel pipe as protecting sleeve, high temperature resistance alloy wire and crystallized magnesia powder and is formed through compression process, and the control part is made of advanced digital circuit, IC trigger, high back pressure SCR, etc. to constitute the adjustable temperature measuring and constant temperature system for the normal operation of the electric heater. The common pipeline heater is usually provided with a buffer valve on the heater for the explosion-proof performance, but the common method is to arrange an elastic blocking piece structure in the buffer valve for releasing air pressure, and the design often causes that the buffer valve can not be closed due to the aging of the elastic piece after the pipeline heater is used for a period of time, thereby influencing the later use and damaging the service life of the heater.

Disclosure of Invention

In order to solve the above problems, the present invention discloses an explosion-proof type pipe heater, which comprises a heater body, the heater comprises a heating shell and a heating assembly, the heating assembly is arranged at the top position of the heater shell, one side of the heating shell is provided with an air inlet, the other side of the heating shell is provided with a buffer valve, the buffer valve is provided with a buffer pipeline which is connected with a lower assembly piece and a movable cover body, the outer walls of the lower assembly piece and the movable cover body are jointed, the joint of the lower assembly and the movable cover body is provided with a matched sliding groove, the movable cover body is arranged at the upper part of the lower assembly, the upper cover body is also provided with an exhaust part which protrudes outwards, the upper cover body and the lower closing piece are provided with openings, the upper cover body and the lower closing piece are provided with openings, and the opening of the upper cover body is opposite to the opening of the lower closing piece in direction and is matched with the opening in size.

As an improvement of the present invention, the left and right sides of the upper cover body are provided with first attaching bodies, the left and right sides of the lower attaching body are provided with second attaching bodies, the first attaching bodies and the second attaching bodies are provided with curved surface structures, the lengths of the first attaching bodies and the second attaching bodies are matched, and the lengths and curvatures of the two curved surface structures are matched. Meanwhile, the second laminating body can control the upper cover body within a certain displacement range, and the upper cover body is prevented from being separated from the lower laminating body.

As an improvement of the utility model, the exhaust part is distributed on two sides of the upper cover body, the exhaust part is an exhaust cavity, and a plurality of through holes are uniformly distributed on the outer wall of the exhaust cavity. When the air pressure reaches a certain degree, the upper cover body is jacked upwards to generate certain displacement, the through holes on the two sides are exposed upwards to exhaust air, the effect of reducing the air pressure is achieved, and when the air pressure is reduced, the upper cover body naturally falls down to seal the lower closing piece.

As an improvement of the utility model, the sliding groove is arranged on the outer wall of the lower closing piece, the bottom of the exhaust cavity is abutted against the inside of the sliding groove, and the sliding groove is made of smooth materials, so that the resistance of the upper cover body in upward movement is reduced.

As a modification of the utility model, the diameter of the opening of the upper cover body is larger than that of the opening of the lower closing piece, and the opening of the upper cover body is the opening at the bottom of the exhaust cavity.

As a modification of the utility model, the through holes are also provided with a fine screen. Prevent external dust from entering the exhaust cavity through the through holes.

As an improvement of the present invention, the first bonded body and the second bonded body have elastic buffer pads, the elastic buffer pads have protrusions and recesses, the protrusions and recesses are in contact with each other in a vertically opposite manner, and the protrusions and recesses are provided to reduce gaps between the elastic buffer pads and improve sealing performance.

The utility model has the beneficial effects that:

1) the buffer valve designed by the utility model can realize the advantage of natural opening and closing, when the air pressure reaches a certain degree, the upper cover body is jacked upwards to generate certain displacement, the through holes on the two sides are exposed upwards to exhaust air, so that the effect of reducing the air pressure is achieved, when the air pressure is reduced, the upper cover body naturally falls down to seal and cover the lower assembly, the safety protection effect on the pipeline heater is realized, and meanwhile, the service life of the buffer valve is prolonged.

2) The sealing structure between the first laminating body and the second laminating body designed by the utility model can ensure the airtightness of the inside and the outside of the buffer valve under the condition of stable air pressure.

Drawings

FIG. 1 is a schematic view of a heater according to the present invention.

FIG. 2 is a view showing a state where an upper lid body and a lower combined body of a heater according to the present invention are in contact with each other.

FIG. 3 is a schematic view showing the positions of the through holes and the fine mesh.

List of reference numerals: the heater comprises a heater body 100, a heating assembly 101, a heater shell 102, a medium port 103, a buffer pipeline 104, a chute 105, a lower fitting 106, an opening end 107, an exhaust part 108, an exhaust cavity 109, a second fitting body 110, a buffer valve 111, an upper cover body 112, a first fitting body 113, a through hole 114, a fine screen 115, a curved surface structure 116, a protrusion 117, an elastic buffer gasket 118 and a pit 119.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model.

Example (b): referring to fig. 1 to the present invention, an explosion-proof type pipe heater is disclosed, the heater includes a heater body 100, the heater includes a heating housing and a heating assembly 101, the heating assembly 101 is installed at a top position of the heater housing 102, a medium port 103 is provided at a bottom of the heating housing, a buffer valve 111 is provided at another side of the heating housing, the buffer valve 111 has a buffer pipe 104, the buffer pipe 104 connects a lower joint member 106 and a movable cover body, the lower joint member 106 is attached to an outer wall of the movable cover body, an adaptive sliding groove 105 is provided at a position where the lower joint member 106 is attached to the movable cover body, the movable cover body is disposed at an upper position of the lower joint member 106, an exhaust part 108 is further provided on the upper cover body 112, the exhaust part 108 protrudes to an outer side, the upper cover body 112 and the lower joint member 106 have openings, the opening of the upper cover 112 is matched with the opening of the lower closing member 106. The left and right sides of the upper cover body 112 are provided with first attaching bodies 113, the left and right sides of the lower attaching body 106 are provided with second attaching bodies 110, curved surface structures 116 are arranged on the first attaching bodies 113 and the second attaching bodies 110, the first attaching bodies 113 and the second attaching bodies 110 are matched in length, and the two curved surface structures 116 are matched in length and curvature. Meanwhile, the second attachment body 110 can control the upper cover 112 within a certain displacement range, so as to prevent the upper cover 112 from being separated from the lower attachment 106. The exhaust part 108 is distributed on two sides of the upper cover body 112, the exhaust part 108 is an exhaust cavity 109, and a plurality of through holes 114 are uniformly distributed on the outer wall of the exhaust cavity 109. When the air pressure reaches a certain degree, the upper cover body 112 is lifted upwards to generate a certain displacement, the through holes 114 at the two sides are exposed upwards for exhausting, so that the effect of reducing the air pressure is achieved, and when the air pressure is reduced, the upper cover body 112 naturally falls down to cover the lower closing piece 106. The sliding groove 105 is arranged on the lower closing piece 106, the bottom of the exhaust cavity 109 is connected inside the sliding groove 105, the opening end 107 of the bottom of the exhaust cavity 109 is abutted against the inside of the sliding groove 105, the sliding groove 105 is made of smooth materials, and the resistance of the upper cover body 112 in upward movement is reduced. The diameter of the opening of the upper cover 112 is larger than the diameter of the opening of the lower engaging member 106. The through holes 114 also have a fine screen 115 thereon. External dust is prevented from entering the inside of the exhaust chamber 109 through the through-holes 114. The curved surfaces of the first attachment body 113 and the second attachment body 110 are provided with elastic buffer gaskets 118, the elastic buffer gaskets 118 are covered on the curved surface structures 116 of the first attachment body 113 and the second attachment body 110, the elastic buffer gaskets 118 are correspondingly provided with protrusions 117 and recesses 119, the protrusions 117 and the recesses 119 are in vertical opposite contact, and the protrusions 117 and the recesses 119 are arranged to reduce gaps between the elastic buffer gaskets 118 and improve sealing performance.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various modifications can be made to the embodiments described in the foregoing embodiments, or some or all of the technical features of the embodiments can be equivalently replaced, and the modifications or the replacements do not make the essence of the corresponding technical solutions depart from the scope of the embodiments of the present invention.

Claims (7)

1. An explosion-proof type pipeline heater is characterized by comprising a heater body (100), the heater comprises a heater shell (102) and a heating assembly (101), the heating assembly (101) is installed at the top position of the heater shell (102), one side of the heater shell (102) is provided with an air inlet, the other side of the heater shell (102) is provided with a buffer valve (111), the buffer valve (111) is provided with a buffer pipeline (104), the buffer pipeline (104) is connected with a lower closing piece (106) and an upper cover body (112), the outer walls of the lower closing piece (106) and the upper cover body (112) are attached, a matched sliding groove (105) is arranged at the attachment position of the lower closing piece (106) and the upper cover body (112), the upper cover body (112) is provided with an exhaust part (108), the exhaust part (108) protrudes outwards, the upper closing piece (112) and the lower closing piece (106) are provided with openings, the opening of the upper cover body (112) is opposite to the opening direction of the lower closing piece (106) and is matched with the opening direction and the size.

2. An explosion proof type pipe heater according to claim 1, wherein the upper cover (112) has a first fitting body (113) on left and right sides, the lower fitting body (106) has a second fitting body (110) on left and right sides, the first fitting body (113) and the second fitting body (110) have curved surface structures (116), the lengths of the first fitting body (113) and the second fitting body (110) are adapted, and the lengths and curvatures of the two curved surface structures (116) are adapted.

3. An explosion proof type pipe heater according to claim 1, wherein the exhaust part (108) is distributed on both sides of the upper cover body (112), the exhaust part (108) is an exhaust cavity (109), and a plurality of through holes (114) are uniformly distributed on the outer wall of the exhaust cavity (109).

4. An explosion proof type pipe heater according to claim 1, wherein the sliding groove (105) is installed on the lower closing member (106), and the bottom of the air discharging chamber (109) abuts against the inside of the sliding groove (105).

5. An explosion proof type pipe heater according to claim 2, wherein the diameter of the opening of the upper cover body (112) is larger than the diameter of the opening of the lower closing member (106).

6. An explosion proof type pipe heater according to claim 3, wherein the through holes (114) are further provided with a fine mesh (115).

7. An explosion proof type pipe heater according to claim 5, wherein the first abutting body (113) and the second abutting body (110) have elastic cushion pads (118), the elastic cushion pads (118) have protrusions (117) and recesses (119) respectively, and the protrusions (117) and the recesses (119) are in up and down facing contact.

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