Dangerous gas detector
By using spiral discs and desiccant boxes in hazardous gas detectors to absorb moisture and salt ions, and applying nano-triple anti-paint on the circuit board, the high failure rate caused by humid air of the hazardous gas detectors on LNG ships is solved, achieving higher equipment reliability and lower corrosion risks.
Patent Information
- Application Number
- CN202422143734.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The hazardous gas detector on the LNG ship is exposed to humid air at sea for a long time, resulting in high failure rate and components are prone to corrosion.
A hazardous gas detector was designed, using a spiral disc and desiccant on a desiccant box to absorb moisture and salt ions in the gas to be tested, and a nanotriple anti-paint was applied to the surface of the circuit board to reduce corrosion.
It effectively avoids corrosion of instrument components, reduces the failure rate, and reduces the possibility of salt in the air entering the instrument through the use of desiccant.
Smart Images
Figure CN222994447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detectors, in particular to a hazardous gas detector. Background Technique
[0002] An LNG ship refers to a ship specially designed to transport liquefied natural gas. Fixed hazardous gas detectors are generally installed on LNG ships, such as at the entrance of the living area and in the engine room. Since LNG ships are engaged in overseas transportation, the hazardous gas detectors are constantly eroded by the salty and humid air at sea all year round, resulting in a relatively high failure rate of a certain hazardous gas detector.
[0003] Among the existing instruments, by protecting the surface of the instrument with a moisture-proof layer, the corrosion of the surface of the hazardous gas detector is reduced. However, since the hazardous gas detector needs to absorb external gases and continuously detect the external gases, the internal components thereof are easily corroded.
[0004] Therefore, the utility model provides a hazardous gas detector to solve the above problems. Content of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides a hazardous gas detector to solve the above problems.
[0006] To achieve the above object, the utility model is realized through the following technical solutions: A hazardous gas detector includes an instrument housing. An alarm is fixedly connected to the side end of the instrument housing. A fixing plate is fixedly connected to the rear side of the instrument housing. A circuit board is arranged inside the instrument housing. A moisture-proof mechanism is further included. The moisture-proof mechanism includes a first pipe, and the first pipe is fixedly communicated with the lower side of the instrument housing.
[0007] Preferably, a three-proof paint is arranged on the surface of the circuit board.
[0008] Preferably, the moisture-proof mechanism further includes a third pipe. The third pipe is communicated with the side wall of the first pipe. A thread is arranged at one end of the third pipe away from the first pipe. A desiccant box is threadedly connected to the third pipe.
[0009] Preferably, desiccant is arranged inside the desiccant box. Holes are arranged on the surface of the desiccant box. A first handle is fixedly connected to one end of the desiccant box away from the first pipe.
[0010] Preferably, a thread is arranged at the bottom end of the first pipe. A first cylinder is threadedly connected to the bottom end of the first pipe. A second handle is fixedly connected to the bottom of the first cylinder. A second round rod is fixedly connected to the top end of the first cylinder.
[0011] Preferably, a spiral disk is arranged on the outer side of the second round rod. Desiccant is arranged on the surface of the spiral disk.
[0012] Beneficial Effects
[0013] The utility model provides a dangerous gas detector. Compared with the prior art, it has the following beneficial effects:
[0014] (1) A hazardous gas detector that absorbs moisture in the gas to be tested through a spiral disk and a desiccant on a desiccant box, and simultaneously absorbs salt ions in the water mist onto the desiccant, thereby minimizing corrosion of the instrument components.
[0015] (2) A hazardous gas detector that further reduces the possibility of circuit board corrosion by applying nano-conformal coating on the circuit board surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is the overall structure diagram of the utility model;
[0017] Figure 2 This is a diagram of the moisture-proof mechanism of the utility model;
[0018] Figure 3 It is a circuit board diagram of the present utility model.
[0019] In the figure, 1, instrument housing; 2, alarm; 3, fixing plate; 4, circuit board;
[0020] 51. first pipe; 52. desiccant box; 53. first handle; 54. first cylinder; 55. spiral disk; 56. second round rod; 57. second handle; 58. third pipe. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Embodiment 1:
[0023] See also Figures 1-3 A dangerous gas detector includes an instrument housing 1, an alarm 2 is fixedly connected to the side end of the instrument housing 1, a fixing plate 3 is fixedly connected to the rear side of the instrument housing 1, a circuit board 4 is arranged inside the instrument housing 1, and a moisture-proof mechanism is also included. The moisture-proof mechanism includes a first pipe 51, and the first pipe 51 is fixedly connected to the lower side of the instrument housing 1. The alarm 2 and the circuit board 4 are both corresponding components of the dangerous gas detector in the prior art.
[0024] The surface of the circuit board 4 is provided with a three-proof paint.
[0025] The moisture-proof mechanism also includes a third pipe 58. The side wall of the first pipe 51 is connected to the third pipe 58. The end of the third pipe 58 away from the first pipe 51 is provided with a thread. The third pipe 58 is threadedly connected to the desiccant box 52.
[0026] Desiccant is disposed inside the desiccant box 52 . Holes are disposed on the surface of the desiccant box 52 . A first handle 53 is fixedly connected to one end of the desiccant box 52 away from the first pipe 51 .
[0027] The bottom end of the first pipe 51 is provided with a thread, and the bottom end of the first pipe 51 is threadedly connected to the first cylinder 54 . The bottom of the first cylinder 54 is fixedly connected to a second handle 57 , and the top end of the first cylinder 54 is fixedly connected to a second round rod 56 .
[0028] A spiral disk 55 is disposed outside the second round rod 56 , and a desiccant is disposed on the surface of the spiral disk 55 .
[0029] Working process: Reference Figure 1 and Figure 2 When the detector starts to detect, the gas peristaltic pump arranged inside the instrument housing 1 generates suction, and the gas to be detected flows from the left pipe of the first pipe 51 to the first pipe 51. Since the gas contains water mist, the water mist passes through the second round rod 56 and moves along the spiral disk 55 toward the instrument housing 1. The desiccant in the spiral disk 55 absorbs the water mist in the gas. The water mist contains salt ions, so that the salt ions in the gas are adsorbed into the desiccant at the same time, reducing the salt in the air from entering the instrument. After passing through the second round rod 56, the gas passes through the desiccant box 52, and the desiccant box 52 is provided with a desiccant. The desiccant absorbs moisture again, further absorbs moisture in the air, reduces the salt ions in the gas to be detected, and avoids the components in the instrument from being corroded as much as possible, causing damage to the components. In addition, the surface of the circuit board 4 is provided with a three-proof paint to reduce moisture and corrosion on the surface of the circuit board 4.
[0030] By rotating the first handle 53 , the desiccant in the desiccant box 52 is checked and replaced. Meanwhile, by rotating the first cylinder 54 through the second handle 57 , the desiccant on the spiral disk 55 is replaced.
[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.
[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A dangerous gas detector, comprising an instrument housing (1), an alarm (2) fixedly connected to a side end of the instrument housing (1), a fixing plate (3) fixedly connected to a rear side of the instrument housing (1), and a circuit board (4) arranged inside the instrument housing (1), characterized in that: It also includes a moisture-proof mechanism, the moisture-proof mechanism including a first pipe (51), the first pipe (51) being fixedly connected to the lower side of the instrument housing (1).
2. A dangerous gas detector according to claim 1, characterized in that: The surface of the circuit board (4) is provided with a three-proof paint.
3. A dangerous gas detector according to claim 1, characterized in that: The moisture-proof mechanism further comprises a third pipe (58), the side wall of the first pipe (51) being connected to the third pipe (58), an end of the third pipe (58) away from the first pipe (51) being provided with a thread, and the third pipe (58) being threadedly connected to the desiccant box (52).
4. A dangerous gas detector according to claim 3, characterized in that: The desiccant box (52) is provided with desiccant inside, a hole is provided on the surface of the desiccant box (52), and a first handle (53) is fixedly connected to one end of the desiccant box (52) away from the first pipe (51).
5. A dangerous gas detector according to claim 4, characterized in that: The bottom end of the first pipe (51) is provided with a thread, the bottom end of the first pipe (51) is threadedly connected to a first cylinder (54), the bottom of the first cylinder (54) is fixedly connected to a second handle (57), and the top end of the first cylinder (54) is fixedly connected to a second round rod (56).
6. A dangerous gas detector according to claim 5, characterized in that: A spiral disk (55) is arranged on the outer side of the second round rod (56), and a desiccant is arranged on the surface of the spiral disk (55).