Protective sleeve and visible cremator

Abstract

The present invention relates to the technical field of cremators, and provides a protective sleeve and a visible cremator. The protective sleeve of the visible cremator includes: a sleeve body, inside which a camera rod is arranged along the axial direction thereof, and a gas flow channel and a cooling water flow channel are independently arranged on the outer peripheral side of the camera rod; one end of the sleeve body is provided with an observation hole, and the other end is provided with a water inlet, a water outlet and an air inlet; one end of the gas flow channel is communicated with the air inlet, and the other end is communicated with the observation hole; one end of the cooling water flow channel is communicated with the water inlet, and the other end is communicated with the water outlet. The gas flow channel of the present invention purges soot from the lens of the camera rod; the circulating cooling water flows in the cooling water flow channel, constantly taking away the heat of the outer wall of the sleeve, ensuring that the sleeve is not thermally deformed, and ensuring that the temperature of the space where the camera lens at the end of the camera rod is located does not exceed the limit.

Description

Technical Field

[0001] The present invention relates to the technical field of cremators, and particularly to a protective sleeve and a visible cremator. Background Art

[0002] A cremation furnace is a device for cremating a corpse. In a visible cremator, a camera lens is mainly placed in a sleeve, and the camera lens is extended into the furnace chamber to photograph the combustion situation, and the sleeve is used to isolate the high temperature in the furnace to protect the camera lens.

[0003] During the cremation of a corpse in a cremator, the furnace chamber should maintain a negative pressure state, and the cremator has strict requirements for airtightness. Otherwise, during the cremation process, a large amount of cold air is drawn into the furnace chamber, which will reduce the temperature in the furnace chamber, destroy the temperature field in the furnace chamber, seriously interfere with the combustion of the corpse in the furnace chamber, and the combustion condition becomes poor. This requires that the protective sleeve and the furnace chamber passage fit tightly without air leakage, and no micro-deformation should occur even under long-term high-temperature heating, so that the sleeve and the furnace chamber passage are blocked by extrusion and cannot be withdrawn, and the front-end small hole is deformed and drifted, resulting in inaccurate positioning.

[0004] In the existing protective sleeve, due to limited heat dissipation capacity, uneven stress occurs on the outer side of the sleeve under heat preservation, resulting in heat deformation. When an emergency occurs and it is necessary to immediately withdraw from the furnace chamber, it often gets stuck, affecting the normal use of the sleeve. In addition, the protective sleeve is usually of a cantilever beam structure. As long as there is a slight deformation of the protective sleeve, it will affect the positioning of the front-end small hole and affect the viewfinder. Summary of the Invention

[0005] The present invention provides a protective sleeve structure and a visible cremator to solve the defect that the sleeve in the existing cremator is prone to deformation under high temperature during the cremation process, and to ensure that the temperature in the inner cavity space of the sleeve does not exceed the limit and isolate the heat from entering.

[0006] The present invention provides a protective sleeve, including:

[0007] A sleeve body, inside which a camera rod is arranged along its axial direction, and a gas flow passage and a cooling water flow passage are independently arranged on the outer peripheral side of the camera rod;

[0008] One end of the sleeve body is provided with an observation hole, and the other end is provided with a water inlet, a water outlet and an air inlet;

[0009] One end of the gas flow passage is communicated with the air inlet, and the other end is communicated with the observation hole; one end of the cooling water flow passage is communicated with the water inlet, and the other end is communicated with the water outlet.

[0010] According to the protective sleeve provided by the present invention, the sleeve body includes:

[0011] The outer wall of the water jacket is a hollow cylindrical shape.

[0012] The inner wall of the first water jacket forms the gas flow channel with the camera rod, and the cooling water flow channel is formed between the inner wall of the first water jacket and the outer wall of the water jacket.

[0013] The partition is arranged between the inner wall of the first water jacket and the outer wall of the water jacket to divide the cooling water flow channel into an inlet channel and an outlet channel; and the inlet channel and the outlet channel are connected at one end close to the observation hole.

[0014] According to a protective sleeve provided by the present invention, the sleeve body further includes:

[0015] The inner wall of the second water jacket forms a first spiral channel and a second spiral channel with the outer wall of the water jacket; the inner wall of the second water jacket and the partition form the outlet channel.

[0016] The first spiral channel is connected to the inlet channel; the second spiral channel is connected to the outlet channel; the first spiral channel and the second spiral channel are connected at one end far from the observation hole.

[0017] According to a protective sleeve provided by the present invention, one end of the first spiral channel close to the observation hole has a guide tube, and the guide tube is connected to the inlet channel.

[0018] According to a protective sleeve provided by the present invention, the space between the outer wall of the water jacket and the inner wall of the second water jacket is set as an equidistant double spiral structure, and the first spiral channel and the second spiral channel are arranged on the equidistant double spiral structure.

[0019] According to a protective sleeve provided by the present invention, the pitch of the first spiral channel is D1, the pitch of the second spiral channel is D2, and the distance between the first spiral channel and the second spiral channel is D, and D1 = D2 = 2D.

[0020] According to a protective sleeve provided by the present invention, both the water inlet and the water outlet are provided with two.

[0021] According to a protective sleeve provided by the present invention, the sleeve body is made of stainless steel.

[0022] According to a protective sleeve provided by the present invention, the observation hole is located on the axis of the camera rod.

[0023] The present invention also provides a visible cremator, including the protective sleeve as described above.

[0024] A protective sleeve provided by the present invention is provided with a gas flow channel and a cooling water flow channel inside the sleeve body. The gas flow channel is communicated with the air inlet, and the other end is communicated with the observation hole. Compressed air can flow into the observation hole along the gas flow channel to blow the soot off the lens of the camera rod. One end of the cooling water flow channel is communicated with the water inlet, and the other end is communicated with the water outlet. The circulating cooling water flows in the cooling water flow channel, constantly taking away the heat from the outer wall of the sleeve, ensuring that the sleeve is not thermally deformed, and ensuring that the temperature of the space where the camera lens at the end of the camera rod is located does not exceed the limit.

[0025] On the other hand, the present invention also provides a visible cremator, which has various advantages as described above because it includes the protective sleeve as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is an installation schematic diagram of the protective sleeve for a visible cremator provided by the present invention;

[0028] Figure 2 It is provided by the present invention Figure 1 The sectional view taken along A-A in;

[0029] Figure 3 It is provided by the present invention Figure 1 The sectional view taken along B-B in;

[0030] Figure 4 It is provided by the present invention Figure 1 The sectional view taken along C-C in;

[0031] Figure 5 It is provided by the present invention Figure 2 The sectional view taken along Ⅰ-Ⅰ in;

[0032] Figure 6 It is provided by the present invention Figure 3 The sectional view taken along Ⅱ-Ⅱ in;

[0033] Figure 7 It is provided by the present invention Figure 4 The sectional view taken along Ⅲ-Ⅲ in;

[0034] Figure 8 It is a schematic diagram of the principle of the equidistant double helix structure provided by the present invention.

[0035] Reference Signs:

[0036] 1. Camera pole; 2. Gas flow channel; 3. Cooling water flow channel; 4. Observation hole; 5. Water inlet; 6. Water outlet; 7. Air inlet; 8. Outer wall of water jacket; 9. Inner wall of the first water jacket; 10. Partition; 11. Inner wall of the second water jacket; 12. Guide tube; 13. Equally spaced double helix structure. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0038] Since the furnace chamber of the cremator needs to maintain a negative pressure state during the cremation of the remains, the cremator has strict requirements for airtightness. Otherwise, during the cremation process, a large amount of cold air will be drawn into the furnace chamber, which will reduce the temperature in the furnace chamber, destroy the temperature field in the furnace chamber, seriously interfere with the combustion of the remains in the furnace chamber, deteriorate the combustion condition, and increase the flue gas pollutants. Therefore, when the visualization system conducts image acquisition deep into the furnace chamber, the protective sleeve outside the lens must fit with the furnace wall hole to prevent a large amount of cold air from sneaking into the furnace chamber and affecting the combustion in the furnace, that is, to ensure that the normal working condition of the combustion of the remains in the furnace cannot be affected during image acquisition. This requires that the fitting part between the outer wall of the sleeve and the furnace chamber hole has good heat dissipation capacity. Otherwise, when shooting in the furnace chamber hole for a long time, the outer wall of the sleeve is unevenly heated and deformed at high temperature. When an emergency occurs and it is necessary to immediately withdraw from the furnace chamber, it often gets stuck. At the same time, it is necessary to ensure that the temperature in the inner cavity space of the sleeve does not exceed the limit and heat is insulated from entering, that is, efficient heat exchange should be carried out at the outer wall of the sleeve, and inefficient heat exchange should be carried out at the inner wall. At the same time, more importantly, the front end of the sleeve is an observation hole 4 with a diameter of 3 mm, and the camera lens takes images through this observation hole 4. The sleeve and the bottom flange belong to a long cantilever beam structure in terms of structure. Even a little thermal deformation of the sleeve will affect the positioning of the front small hole and the viewfinder.

[0039] The following will be combined with Figures 1 - 8 Describe the protective sleeve provided by the present invention for a visible cremator.

[0040] As Figure 1 . Figure 2 . Figure 3 And Figure 4As shown in the figure, the present invention provides a protective sleeve for a visualization cremator. The protective sleeve includes: a sleeve body, inside which a camera rod 1 is arranged along its axial direction, and a gas flow channel 2 and a cooling water flow channel 3 are independently arranged on the outer peripheral side of the camera rod 1; one end of the sleeve body is provided with an observation hole 4, and the other end is provided with a water inlet 5, a water outlet 6 and an air inlet 7; one end of the gas flow channel 2 is communicated with the air inlet 7, and the other end is communicated with the observation hole 4; one end of the cooling water flow channel 3 is communicated with the water inlet 5, and the other end is communicated with the water outlet 6.

[0041] For the protective sleeve provided by the present invention, by arranging a gas flow channel 2 and a cooling water flow channel 3 inside the sleeve body, the gas flow channel 2 is communicated with the air inlet 7, and the other end is communicated with the observation hole 4, compressed air can flow into the observation hole 4 along the gas flow channel 2 to purge dust from the lens of the camera rod 1; one end of the cooling water flow channel 3 is communicated with the water inlet 5, and the other end is communicated with the water outlet 6, and the circulating cooling water flows in the cooling water flow channel 3, constantly taking away the heat from the outer wall of the sleeve body, ensuring that the sleeve is not thermally deformed, and ensuring that the temperature of the space where the camera lens at the end of the camera rod 1 is located does not exceed the limit.

[0042] In an embodiment of the present invention, the sleeve body includes: a water jacket outer wall 8, a first water jacket inner wall 9 and a partition plate 10. The water jacket outer wall 8 is a hollow cylindrical shape; the first water jacket inner wall 9 and the water jacket outer wall 8 are arranged in a ring shape, and a gas flow channel 2 is formed between the first water jacket inner wall 9 and the camera rod 1, and compressed air enters from the gas flow channel 2 until it reaches one end of the observation hole 4; a cooling water flow channel 3 is formed between the first water jacket inner wall 9 and the water jacket outer wall 8; the partition plate 10 is arranged between the first water jacket inner wall 9 and the water jacket outer wall 8 to divide the cooling water flow channel 3 into an inlet channel and an outlet channel; and the inlet channel and the outlet channel are communicated at one end close to the observation hole 4. Cooling water enters from the water inlet 5, enters the cylindrical layer space of the innermost layer of the sleeve, flows from one end to one end of the observation hole, returns to the outer layer through the partition plate 10 on one side of the observation hole 4, and then flows to the flange side and flows out from the water outlet 6.

[0043] As Figure 2 As shown in the figure, in an embodiment of the present invention, the sleeve body further includes: a second water jacket inner wall 11, which forms a first spiral channel and a second spiral channel with the water jacket outer wall 8; an outlet channel is formed between the second water jacket inner wall 11 and the partition plate 10; the first spiral channel is communicated with the inlet channel; the second spiral channel is communicated with the outlet channel; the first spiral channel and the second spiral channel are communicated at one end far from the observation hole 4. The first spiral channel has a guide pipe 12 at one end close to the observation hole 4, and the guide pipe 12 is communicated with the inlet channel. The water jacket outer wall 8 and the second water jacket inner wall 11 are arranged in an equidistant double spiral structure, and the first spiral channel and the second spiral channel are arranged on the equidistant double spiral structure.

[0044] That is to say, the sleeve body comprises, from the outer layer to the inner layer, the water jacket outer wall 8 and the second water jacket inner wall 11, a first spiral channel and a second spiral channel are formed between the water jacket outer wall 8 and the second water jacket inner wall 11, a water outlet channel is formed between the second water jacket inner wall 11 and the partition 10, and a water inlet channel is formed between the partition 10 and the first water jacket inner wall 9; a gas flow channel is formed between the first water jacket inner wall 9 and the camera rod 1; when the sleeve is installed, the end provided with the water inlet 5 can be connected to the flange, and the end where the water inlet 5 is installed is called the flange end.

[0045] like Figure 5 , Figure 6 and Figure 7 As shown, when the sleeve body is refrigerated, cooling water enters the water inlet channel from the water inlet 5, flows from the flange side to the observation hole side, passes through the guide pipe, and returns to the first spiral channel of the outer layer through the guide pipe on the observation hole side. The cooling water is completely guided into the first spiral channel. After the cooling water reaches the flange end, the cooling water is diverted to the second spiral channel. At this time, the double thread and the flange end face are flush. Therefore, the cooling water flows from the flange side to the observation hole side. The second spiral channel is connected to the water outlet channel. The cooling water returns to the flange side after turning back at the observation hole and flows out from the water outlet 6 of the flange.

[0046] The equidistant double helix structure has a circulating cooling water in a forced rotating countercurrent heat exchange state with high turbulence and high heat exchange efficiency. It can take away the heat from the outer wall of the sleeve in time to ensure that the sleeve is not deformed by heat. The circulating cooling water on the inner wall of the second water jacket adopts a method of slowly and evenly returning the inner layer. The water remains in a laminar state with low heat exchange efficiency, isolating external heat from entering the inner cavity of the sleeve to ensure that the temperature of the space where the camera lens at the end of the camera rod is located does not exceed the limit.

[0047] In an embodiment of the present invention, Figure 8 As shown, the pitch of the first spiral channel is D1, the pitch of the second spiral channel is D2, the spacing between the first spiral channel and the second spiral channel is D, D1=D2=2D, and the continuous arrows indicate the direction of water flow. After the water flows into the front water inlet channel, the circulating cooling water flows into the water inlet channel, goes all the way to the space on the right, and then returns through the return water channel. The cooling circulating water rotates forward at high speed in the spiral channel with high turbulence. The water inlet channel and the return water channel alternate, the water flow directions are relative, countercurrent heat exchange is achieved, and the comprehensive heat exchange efficiency is high.

[0048] In the embodiment of the present invention, two water inlets 5 and two water outlets 6 are provided, which can increase the heat exchange efficiency of cooling water inlet and outlet.

[0049] In the embodiment of the present invention, the sleeve body is made of stainless steel, which has excellent corrosion resistance, formability, compatibility, and toughness in a wide range.

[0050] In an embodiment of the present invention, the observation hole 4 is located on the axis of the camera rod 1 so that compressed air can evenly act on the end of the camera rod 1.

[0051] For the protective sleeve of the visible cremator provided by the present invention, the cooling water sequentially passes through the water inlet channel, the first spiral channel, the second spiral channel and the water outlet channel. The circulating cooling water is in a forced rotation countercurrent heat exchange state in the first spiral channel and the second spiral channel, with a high degree of turbulence and high heat exchange efficiency. It can timely take away the heat on the outer wall of the sleeve, ensuring that the sleeve is not thermally deformed. The inner walls of the first water jacket and the second water jacket adopt a slow and uniform folding-back method inside, and the water remains in a laminar flow state with low heat exchange efficiency, which can isolate the external heat from entering the inside of the sleeve and ensure that the temperature of the space where the camera lens is located does not exceed the limit.

[0052] The compressed air enters the gas flow channel between the camera rod 1 and the inner wall 9 of the first water jacket through the air inlet 7, flows from the flange side to the observation hole side, and is discharged into the furnace through the observation port, blocking the pollution of the camera lens by soot.

[0053] The visible cremator provided by the present invention will be described below. The visible cremator described below can be correspondingly referred to the protective sleeve for the visible cremator described above.

[0054] Another embodiment of the present invention lies in providing a visible cremator, including the protective sleeve for the visible cremator described above.

[0055] The visible cremator provided by the present invention, due to including the protective sleeve for the visible cremator as described above, thus has various advantages as described above.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A protective sleeve, characterized in that, it comprises: a sleeve body, inside which a camera rod (1) is arranged along its axis direction, and a gas flow channel (2) and a cooling water flow channel (3) are independently arranged on the outer peripheral side of the camera rod (1); one end of the sleeve body is provided with an observation hole (4), and the other end is provided with a water inlet (5), a water outlet (6) and an air inlet (7); one end of the gas flow channel (2) is communicated with the air inlet (7), and the other end is communicated with the observation hole (4); one end of the cooling water flow channel (3) is communicated with the water inlet (5), and the other end is communicated with the water outlet (6); the observation hole (4) is located on the axis of the camera rod (1); wherein, the sleeve body comprises: a water jacket outer wall (8), which is a hollow cylindrical shape; a first water jacket inner wall (9), which forms the gas flow channel (2) with the camera rod (1), and forms the cooling water flow channel (3) between the first water jacket inner wall (9) and the water jacket outer wall (8); a partition plate (10), which is arranged between the first water jacket inner wall (9) and the water jacket outer wall (8) to divide the cooling water flow channel (3) into a water inlet channel and a water outlet channel; and the water inlet channel and the water outlet channel are communicated at one end close to the observation hole (4); a second water jacket inner wall (11), which forms a first spiral channel and a second spiral channel between the second water jacket inner wall (11) and the water jacket outer wall (8); the water outlet channel is formed between the second water jacket inner wall (11) and the partition plate (10); the first spiral channel is communicated with the water inlet channel; the second spiral channel is communicated with the water outlet channel; the first spiral channel and the second spiral channel are communicated at one end far from the observation hole (4).

2. The protective sleeve according to claim 1, characterized in that, one end of the first spiral channel close to the observation hole (4) is provided with a guide tube (12), and the guide tube (12) is communicated with the water inlet channel.

3. The protective sleeve according to claim 1, characterized in that, an equidistant double spiral structure (13) is arranged between the water jacket outer wall (8) and the second water jacket inner wall (11), and the first spiral channel and the second spiral channel are arranged on the equidistant double spiral structure (13).

4. The protective sleeve according to claim 3, characterized in that, the pitch of the first spiral channel is D1, the pitch of the second spiral channel is D2, the distance between the first spiral channel and the second spiral channel is D, and D1 = D2 = 2D.

5. The protective sleeve according to claim 1, characterized in that, both the water inlet (5) and the water outlet (6) are provided with two.

6. The protective sleeve according to claim 1, characterized in that, the sleeve body is made of stainless steel material.

7. A visible cremator, characterized in that, it comprises the protective sleeve according to any one of claims 1-6.

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