Heat insulation and cooling device for CCD (Charge Coupled Device) camera

Abstract

The utility model discloses a heat insulation and cooling device for a CCD (charge coupled device) camera, which belongs to the technical field of high-temperature environment scene observation and comprises the CCD camera, a high-transmittance quartz cylinder is fixedly arranged at the front end of the CCD camera, the rear end of the CCD camera is connected with a probe shell, the probe shell is communicated with an inner sleeve with an opening at one end, and the other end of the inner sleeve is connected with the CCD camera. The inner sleeve wraps and fixes the high-transmittance quartz cylinder and the CCD camera at the rear end of the high-transmittance quartz cylinder, and certain ventilation gaps are reserved on the two sides of the high-transmittance quartz cylinder and the two sides of the CCD camera at the rear end of the high-transmittance quartz cylinder. By adopting a double-air internal cooling mode of the two layers of sleeves, the inner sleeve and the outer sleeve and taking a light-transmitting quartz cylinder at the front end of the inner sleeve as a heat insulation measure, the CCD camera is effectively ensured to continuously and reliably work in a high-temperature environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of high temperature environment scene observation, and in particular relates to a CCD camera heat insulation and cooling device. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.

[0003] At present, CCD video camera technology has been widely used. However, when it comes to scenes such as high temperature and flames, such as capturing images of the combustion conditions inside a power plant boiler, there are still problems with CCD continuous camera recording. This is because, as a sensitive electronic device, the operating temperature of the CCD camera generally cannot exceed 60°C. Therefore, when continuously observing industrial furnace flames, it is necessary to ensure that the operating temperature of the camera does not exceed 60°C.

[0004] The general cooling method uses water cooling. Although water cooling has high cooling efficiency, it has high cost investment and requires more supporting equipment, such as chillers, heat exchangers, etc. For example, patent application No. 201910252930.9 is a portable high and low temperature camera protection device, which is equipped with an external cooling structure, arranging cooling plates, pipelines for conveying refrigerant, and an external chiller, which has a complex structure and high cost. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the utility model provides a CCD camera heat insulation and cooling device, which solves the problem of the CCD camera continuously observing the flame and the surrounding conditions at a close distance.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A CCD camera heat insulation and cooling device comprises a CCD camera, wherein a high-transmittance quartz column is fixedly provided at the front end of the CCD camera, and the rear end is connected to a probe housing, the probe housing is communicated with an inner sleeve with an opening at one end, the inner sleeve wraps and fixes the high-transmittance quartz column and the CCD camera at the rear end thereof, and a certain ventilation gap is left on both sides of the high-transmittance quartz column and the CCD camera at the rear end thereof.

[0008] According to a further technical solution, the high-transmittance quartz column is a prismatic quartz crystal.

[0009] According to a further technical solution, the high-transmittance quartz column is fixedly arranged at the front end of the inner sleeve.

[0010] According to a further technical solution, the CCD camera is directly facing the center position of the rear end of the high-transmittance quartz column.

[0011] According to a further technical solution, a receiving and forwarding module is fixedly installed inside the probe housing, and the receiving and forwarding module is connected to a CCD camera.

[0012] According to a further technical solution, a first opening is provided on a side of the probe housing facing the CCD camera, and is connected to the inner sleeve through the first opening.

[0013] According to a further technical solution, a second opening is provided on one side of the probe housing that is perpendicular to the first opening side, and the probe housing is connected to an external internal cooling air duct through the second opening.

[0014] According to a further technical solution, an outer sleeve is sleeved on the outer side of the inner sleeve, one end of the outer sleeve is open, and the other end is fixed to the side wall of the first opening side of the probe housing.

[0015] According to a further technical solution, a certain distance is provided between the side wall of the outer sleeve and the side wall of the inner sleeve.

[0016] According to a further technical solution, a third opening is provided on the lower side wall of the outer sleeve close to the probe housing, and is connected to an external cooling air duct outside the outer sleeve through the third opening.

[0017] Beneficial effects of the utility model:

[0018] The utility model proposes a CCD camera heat insulation and cooling device, which effectively ensures that the CCD camera can work continuously and reliably in a high temperature environment by adopting a double-layer sleeve, an inner sleeve and an outer sleeve with double air internal cooling, and a light-transmitting quartz column at the front end of the inner sleeve as a heat insulation measure. The device has a simple structure and low cost. Temperature cooling can be achieved by only using a sleeve and a fan. The double-layer sleeve is set for simultaneous cooling, which improves the cooling efficiency. At the same time, a quartz crystal prism is fixedly set for heat insulation, which further improves the normal temperature effect of the working environment of the CCD camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is an overall structural diagram of the CCD camera heat insulation and cooling device according to an embodiment of the utility model.

[0021] Among them, 1-probe housing, 2-CCD camera, 3-high light transmittance quartz column, 4-receiving and forwarding module, 5-inner sleeve, 6-outer sleeve, 7-inner cooling air duct, 8-outer cooling air duct. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figure 1 As shown, an embodiment of the utility model provides a CCD camera insulation and cooling device, including a CCD camera, wherein a high-transmittance quartz column is fixedly provided at the front end of the CCD camera, and the rear end is connected to a probe housing, and the probe housing is connected to an inner sleeve with an opening at one end, and the inner sleeve wraps and fixes the high-transmittance quartz column and the CCD camera at the rear end thereof, and a certain ventilation gap is left on both sides of the high-transmittance quartz column and the CCD camera at the rear end thereof.

[0024] In this embodiment, the high-transmittance quartz column is a prismatic quartz crystal, which is fixedly arranged at the front end of the inner sleeve, the front end of the high-transmittance quartz column faces the flame, and the rear end is aligned with the CCD camera, and the CCD camera is directly facing the center of the rear end of the crystal to achieve continuous observation of the industrial furnace flame. The quartz crystal prism acts as an insulator to block the conduction of temperature and play a heat-insulating role; the quartz column can allow a large amount of light to pass through due to its high light transmittance, which can ensure that the CCD camera can capture a clear flame image, and its transparent crystal ensures the clarity of the CCD camera; the quartz crystal has extremely high temperature resistance and can withstand the high temperature environment in the industrial furnace without being easily damaged, avoiding the CCD camera from being directly exposed to the high temperature environment and being damaged.

[0025] In this embodiment, the probe housing is a metal housing, and a CCD receiving and forwarding module is fixedly installed inside the housing. The receiving and forwarding module is connected to the CCD camera, receives the image signal captured by the CCD camera, and forwards it to a subsequent processing device. The probe housing is used to protect the receiving and forwarding module inside the housing from interference and damage from the external environment, and ensure its stable operation.

[0026] In some embodiments, the CCD camera is connected to the receiving and forwarding module via a wire. It should be noted that the receiving and forwarding module uses an existing functional module to implement its function of receiving and forwarding CCD camera signals, and does not involve improvements in software programs.

[0027] A first opening is provided on the side of the probe housing facing the CCD camera, and is communicated with the inner sleeve through the first opening; a second opening is provided on the side of the probe housing perpendicular to the first opening, and is communicated with the external inner cooling air duct through the second opening. The inner cooling air enters the probe housing through the inner cooling air duct, and passes into the inner sleeve through the first opening. The inner cooling air enters from the rear end of the inner sleeve, flows to the front end, and flows out from the gaps around the front prismatic quartz crystal, taking away the heat of the inner sleeve.

[0028] In this embodiment, the inner sleeve wraps and fixes the prismatic quartz crystal and the CCD camera therein, the front end of the inner sleeve is open and faces the flame directly, the quartz crystal and the CCD camera are fixedly arranged at the front end of the inner sleeve, the front end of the quartz crystal faces the flame, the rear end faces the CCD camera, and the two sides of the quartz crystal and the CCD camera are spaced a certain distance from the side wall of the inner tube, leaving a certain ventilation gap on both sides. The ventilation gap allows the internal cooling air to circulate, plays a role in heat dissipation, and ensures the normal operation of the CCD camera.

[0029] An outer sleeve is sleeved on the outside of the inner sleeve, one end of the outer sleeve is open, and the other end is fixed to the side wall of the first opening side of the probe shell to provide external protection for the inner sleeve, which can effectively prevent the inner sleeve and the quartz crystal and CCD camera inside it from being directly damaged by the external environment, such as high temperature, chemicals, etc.

[0030] There is a certain distance between the side wall of the outer sleeve and the side wall of the inner sleeve, and there is enough gap between the inner and outer sleeves, through which the external cooling air passes, that is, the diameter of the outer sleeve is larger than the diameter of the inner sleeve. A third opening is provided on the lower side wall of the outer sleeve close to the probe housing, through which the outer sleeve is connected to the external cooling air duct outside it, and the external cooling air enters the interior of the outer sleeve through the external cooling air duct, that is, the external cooling air enters from the outside of the rear end of the inner sleeve, flows in the gap between the inner and outer sleeves, and finally flows out from the front end gap of the inner and outer sleeves, taking away the heat of the outer sleeve.

[0031] In this embodiment, when taking images of the combustion conditions inside the boiler of a power plant, the furnace temperature is around 1000°C. A suitable shooting position is selected according to the boiler structure. The camera body, i.e., the receiving and forwarding module, is located at a certain distance from the boiler. The CCD camera connected to the camera body is close to the flame. A translucent quartz column is fixed at the front end of the CCD camera for heat insulation. At the same time, a double-layer casing is used to cool the temperature through double-air internal cooling to reduce the temperature around the CCD camera, thereby ensuring that the operating temperature of the camera is within the operating temperature range.

[0032] In some embodiments, the camera body is disposed 2 or 3 meters away from the boiler to ensure that the camera body is within a relatively safe temperature range and avoids direct damage from high temperature.

[0033] Working principle details:

[0034] Two layers of casing are set on the outside of the CCD camera, including an outer casing and an inner casing. The CCD camera is fixed at the front end of the inner casing directly facing the flame. A high-transmittance quartz column is fixed at the front end of the CCD camera. The quartz crystal prism acts as an insulator to block the conduction of temperature and play a heat-insulating role, thereby preventing the CCD camera from being directly exposed to a high-temperature environment.

[0035] While insulating, cooling air is introduced into the device, and the internal cooling air flows into the interior of the probe shell through the internal cooling air duct at the second opening, and passes into the inner sleeve through the first opening. The internal cooling air enters from the rear end of the inner sleeve, flows to the front end, and flows out from the gaps around the front prismatic quartz crystal and the CCD camera, taking away the heat of the inner sleeve. The internal cooling air flowing through the inner sleeve cools the inner sleeve, the CCD camera, and the quartz column together; at the same time, the external cooling air enters the interior of the outer sleeve through the external cooling air duct, that is, the external cooling air enters from the outside of the rear end of the inner sleeve, circulates in the gap between the inner and outer sleeves, and finally flows out from the front end gap between the inner and outer sleeves, taking away the heat of the outer sleeve, thereby realizing double-wind internal cooling of the CCD camera.

[0036] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A CCD camera heat insulation and cooling device, characterized in that: It includes a CCD camera, a high-transmittance quartz cylinder is fixedly provided at the front end of the CCD camera, and the rear end is connected to the probe shell. The probe shell is connected to an inner sleeve with an opening at one end. The inner sleeve wraps and fixes the high-transmittance quartz cylinder and the CCD camera at the rear end thereof, and a certain ventilation gap is left on both sides of the high-transmittance quartz cylinder and the CCD camera at the rear end thereof.

2. A CCD camera heat insulation and cooling device as claimed in claim 1, characterized in that: The high light-transmittance quartz column is a prismatic quartz crystal.

3. A CCD camera heat insulation and cooling device as claimed in claim 1, characterized in that: The high light-transmittance quartz column is fixedly arranged at the front end of the inner sleeve.

4. A CCD camera heat insulation and cooling device as claimed in claim 1, characterized in that: The CCD camera is directly facing the center position of the rear end of the high-transmittance quartz column.

5. A CCD camera heat insulation and cooling device as claimed in claim 1, characterized in that: A receiving and forwarding module is fixedly installed inside the probe housing, and the receiving and forwarding module is connected to the CCD camera.

6. A CCD camera heat insulation and cooling device as claimed in claim 1, characterized in that: A first opening is provided on a side of the probe housing facing the CCD camera, and is communicated with the inner sleeve through the first opening.

7. A CCD camera heat insulation and cooling device as claimed in claim 6, characterized in that: A second opening is provided on one side of the probe housing that is perpendicular to the first opening side, and is communicated with an external internal cooling air duct through the second opening.

8. A CCD camera heat insulation and cooling device as claimed in claim 1, characterized in that: An outer sleeve is sleeved on the outer side of the inner sleeve. One end of the outer sleeve is open, and the other end is fixed on the side wall of the first opening side of the probe housing.

9. A CCD camera heat insulation and cooling device as claimed in claim 8, characterized in that: There is a certain distance between the side wall of the outer sleeve and the side wall of the inner sleeve.

10. A CCD camera heat insulation and cooling device as claimed in claim 8, characterized in that: The outer sleeve is provided with a third opening on the lower side wall close to the probe housing, and is communicated with an external cooling air duct outside the outer sleeve through the third opening.

Images