Positive pressure ventilation device of driller room

Abstract

The utility model relates to the technical field of positive pressure ventilation devices, in particular to a driller room positive pressure ventilation device which comprises an air opening structure, a fan body, a closed gate and a locking structure. The fan main body is screwed and mounted at a front side opening of the air port structure; the closed gate comprises a base rod, a supporting seat and a supporting beam, the two ends of the base rod are fixedly connected with the inner wall of the conical air duct, gate plates are hinged to the two sides of the base rod, and extension springs are buckled to the two sides of the gate plates; the middle of the front side of the locking structure is clamped with the edge of the rear side of the closed gate, and the locking structure is slidably installed at an opening in the rear side of the conical-barrel-shaped air duct. According to the utility model, fire and high temperature are transmitted to the interior of the conical air duct at the outdoor periphery of a driller room or indoors, the contact locking structure limits the two gate plates, and the two gate plates are pulled by the extension spring to be closed quickly, so that air is isolated relatively.

Description

Technical Field

[0001] The utility model relates to the technical field of positive pressure ventilation devices, in particular to a positive pressure ventilation device for a driller's room. Background Art

[0002] The driller's room is the core component of the drilling rig in the mining area. The working area is near the wellhead of the drilling rig platform. It is a Class II explosion-proof area and a high-risk area where flammable, explosive and toxic gases are likely to appear. The driller's own safety must be guaranteed under any circumstances, and there must be sufficient time to complete the necessary emergency shutdown operations of the drilling rig. Its safety requirements are high, especially on offshore drilling platforms. In order to exhaust the flammable, explosive and toxic gases in the driller's room, clean air must be obtained from the safe area to forcibly purge the driller's room and maintain a certain air pressure in the driller's room. Therefore, air is drawn from the outside and injected into the room to increase the indoor air pressure. Positive pressure ventilation devices that squeeze out the original air in the room are often used to ventilate the driller's room.

[0003] However, since the positive pressure ventilation device draws air from the outside, once a fire occurs around the driller's room, the high temperature generated will be sucked into the driller's room along with the air through the positive pressure ventilation device, and then the fire will be introduced into the driller's room, which poses a certain risk. To avoid this situation, the air inlet is usually set away from the mining area and the driller's room through pipes, which increases the cost of the ventilation system and requires special personnel or equipment to frequently monitor the air inlet, further increasing the cost. Utility Model Content

[0004] The purpose of the utility model is to provide a positive pressure ventilation device for a driller's room to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A positive pressure ventilation device for a driller's room, comprising:

[0007] An air outlet structure, comprising a conical air duct;

[0008] A fan body, the fan body being screwed and mounted at the front opening of the air outlet structure;

[0009] The closed gate includes a base rod, both ends of which are fixedly connected to the inner wall of the conical air duct, gate plates are hinged on both sides of the base rod, and tension springs are buckled on both sides of the gate plates;

[0010] A locking structure, wherein the middle portion of the front side of the locking structure is engaged with the rear edge of the closed gate, and the locking structure is slidably installed at the rear opening of the conical air duct.

[0011] Furthermore, the tuyere structure further includes:

[0012] An air inlet, the air inlet being fixedly mounted at the front opening of the conical air duct;

[0013] A first rotating ring, the first rotating ring being screwed and installed at the rear edge of the outer wall of the air inlet;

[0014] A mounting flange, the mounting flange being fixedly sleeved on the front edge of the outer wall of the first rotating ring;

[0015] A second rotating ring, which is screwed and installed at the rear opening of the conical air duct;

[0016] The louver fence is fixedly installed on the inner wall of the second rotating ring.

[0017] Furthermore, the fan body includes:

[0018] An air outlet duct, wherein the rear opening of the air outlet duct and the inner wall of the front opening of the air inlet are screwed together;

[0019] A fan frame, the fan frame being fixedly mounted on the inner wall of the air outlet duct;

[0020] A fan, wherein the motor side surface of the fan is fixedly mounted in the middle of the fan frame;

[0021] A third rotating ring, the third rotating ring being screwed and installed at the front opening of the air outlet duct;

[0022] The air outlet guardrail is fixedly installed on the inner wall of the third rotating ring.

[0023] Furthermore, the fan body further comprises:

[0024] A ring frame, the ring frame rests against the rear opening of the air outlet duct, and gaskets are attached to both sides of the front surface of the ring frame;

[0025] The filter screen is fixedly installed on the inner wall of the ring frame.

[0026] Further, the closed gate further comprises:

[0027] A support seat, the support seat is fixedly mounted on the middle portion of the rear surface of the base rod;

[0028] The support beam is fixedly installed at the rear end of the support seat, and the two ends of the support beam are buckled with the other end of the tension spring.

[0029] Furthermore, the locking structure includes:

[0030] A crossbeam, wherein a clamp is fixedly installed in the middle of the crossbeam;

[0031] A T-shaped support frame, wherein two ends of the rear surface of the T-shaped support frame are fixedly mounted with T-shaped support frames, and two ends of the front side of the T-shaped support frame are fixedly connected with return springs;

[0032] A spring seat, the spring seat being fixedly mounted on one end of the return spring and the spring seat being fixedly mounted on the inner wall of the rear opening of the conical air duct;

[0033] A fuse, which is fixedly mounted on both ends of one edge of the T-shaped support, and the other side of the fuse is fixedly connected to the inner wall of the rear opening of the conical air duct;

[0034] Sliders, which are fixedly mounted at the upper and lower ends of the beam;

[0035] The slide groove is provided on the inner wall of the rear opening of the conical air duct, and the slide groove and the slider are slidably engaged with each other.

[0036] Furthermore, the locking structure further comprises:

[0037] A fuse, which is fixedly mounted on both ends of one edge of the T-shaped support, and the other side of the fuse is fixedly connected to the inner wall of the rear opening of the conical air duct;

[0038] Sliders, which are fixedly mounted at the upper and lower ends of the beam;

[0039] The slide groove is provided on the inner wall of the rear opening of the conical air duct, and the slide groove and the slider are slidably engaged with each other.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] 1. When a fire occurs outdoors or indoors in the driller's room, high temperature is transmitted to the inside of the conical air duct, contacting the locking structure to limit the two gate plates, and the tension spring pulls the two gate plates to quickly close and relatively isolate the air; when the closed gate is opened, the two gate plates point parallel to the rear of the conical air duct, and the inner walls of the conical air duct at both ends of the support beam are fixedly connected to each other, providing a fulcrum for one end of the tension spring, so that the tension spring is in a stretched state to accumulate elastic potential energy, and the locking structure provides a card-locking lock for the two gate plates.

[0042] 2. Install the air outlet structure at the ventilation device installation port inserted on the wall of the driller's room, and extend the conical air duct outdoors. Then install the fan body indoors and screw it with the front opening of the air outlet structure. The overall structure is optimized in a modular design to facilitate transportation, assembly and maintenance. The fan body agitates the air flow, and the conical air duct is used to draw air from the outside and continuously pass it into the driller's room to increase the internal air pressure of the driller's room. The air is discharged through other vents opened in the driller's room to achieve air exchange with the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0044] Figure 2It is a schematic diagram of the overall structure of the utility model;

[0045] Figure 3 This is a schematic cross-sectional view of the air outlet structure of the utility model;

[0046] Figure 4 This is a schematic diagram of the blower main body of the utility model;

[0047] Figure 5 It is a schematic diagram of the disassembly of the closed gate and the locking structure in the utility model.

[0048] In the figure: 1. Air outlet structure; 101. Conical air duct; 102. Air inlet; 103. No. 1 rotary ring; 104. Mounting flange; 105. No. 2 rotary ring; 106. Louver fence; 2. Fan body; 201. Air outlet; 202. Fan frame; 203. Fan; 204. No. 3 rotary ring; 205. Air outlet guardrail; 206. Ring frame; 207. Filter; 3. Closing gate; 301. Base rod; 302. Gate plate; 303. Tension spring; 304. Support seat; 305. Support beam; 4. Locking structure; 401. Crossbeam; 402. Clip; 403. T-shaped support; 404. Return spring; 405. Spring seat; 406. Fuse; 407. Slider; 408. Slide. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] See also Figure 1-5 In an embodiment of the present invention, a positive pressure ventilation device for a driller's room comprises an air inlet structure 1, a fan body 2, a closed gate 3 and a locking structure 4. The air inlet structure 1 comprises a conical air duct 101; the fan body 2 is screwed and installed at the front opening of the air inlet structure 1; the closed gate 3 comprises a base rod 301, a support seat 304, and a support beam 305. Both ends of the base rod 301 are fixedly connected to the inner wall of the conical air duct 101, and gate plates 302 are hinged on both sides of the base rod 301. Tension springs 303 are buckled on both sides of the gate plate 302; the middle part of the front side of the locking structure 4 is mutually engaged with the rear edge of the closed gate 3, and the locking structure 4 is slidably installed at the rear opening of the conical air duct 101; the support seat 304 is fixedly installed in the middle of the rear surface of the base rod 301; the support beam 305 is fixedly installed at the rear end of the support seat 304, and the two ends of the support beam 305 are buckled with the other end of the tension spring 303.

[0051] Specifically, the air outlet structure 1 is installed at the ventilation device installation port inserted on the wall of the driller's room, and the conical air duct 101 is extended to the outside, and then the fan body 2 is installed indoors and screwed together with the front opening of the air outlet structure 1. The overall structure is optimized in a modular design, which is convenient for transportation, assembly and maintenance. The air flow is agitated by the fan body 2, and the conical air duct 101 is used to extract air from the outside and continuously pass it into the driller's room to increase the internal air pressure of the driller's room. The air is discharged through other vents opened in the driller's room to achieve air exchange with the outside, and the outside periphery or indoor air of the driller's room is used. When a fire occurs, high temperature is transmitted to the inside of the conical air duct 101, contacting the locking structure 4 to limit the two gate plates 302, and the tension spring 303 pulls the two gate plates 302 to quickly close and relatively isolate the air; when the closed gate 3 is opened, the two gate plates 302 point parallel to the rear of the conical air duct 101, and the inner walls of the conical air duct 101 at both ends of the support beam 305 are fixedly connected to each other, and at the same time, a fulcrum is provided for one end of the tension spring 303, so that the tension spring 303 is in a stretched state to accumulate elastic potential energy, and the locking structure 4 provides a snap-fit locking for the two gate plates 302.

[0052] Example 1

[0053] like Figure 1-3 As shown, in this embodiment, the air outlet structure 1 also includes an air inlet 102, a No. 1 rotary ring 103, a mounting flange 104, a No. 2 rotary ring 105, and a louver fence 106. The air inlet 102 is fixedly installed at the front opening of the conical air duct 101; the No. 1 rotary ring 103 is screwed and installed at the rear edge of the outer wall of the air inlet 102; the mounting flange 104 is fixedly sleeved on the front edge of the outer wall of the No. 1 rotary ring 103; the No. 2 rotary ring 105 is screwed and installed at the rear opening of the conical air duct 101; the louver fence 106 is fixedly installed on the inner wall of the No. 2 rotary ring 105.

[0054] In this embodiment, during installation, the No. 1 rotary ring 103 is fixedly sleeved on the inner wall of the installation opening inserted on the wall of the driller's room by bolts and the installation flange 104. After the conical air duct 101 is taken out, the air inlet 102 and the No. 1 rotary ring 103 are screwed together for installation. After the conical air duct 101 is installed, the No. 2 rotary ring 105 is taken out and screwed on the rear opening of the conical air duct 101. The rear opening of the conical air duct 101 is protected by the louver fence 106.

[0055] like Figure 1 and Figure 4As shown, in this embodiment, the fan body 2 includes an air outlet duct 201, a fan frame 202, a fan 203, a No. 3 rotary ring 204, an air outlet fence 205, a ring frame 206, and a filter 207. The rear opening of the air outlet duct 201 and the inner wall of the front opening of the air inlet 102 are screwed together; the fan frame 202 is fixedly installed on the inner wall of the air outlet duct 201; the motor side surface of the fan 203 is fixedly installed in the middle of the fan frame 202; the No. 3 rotary ring 204 is screwed and installed at the front opening of the air outlet duct 201; the air outlet fence 205 is fixedly installed on the inner wall of the No. 3 rotary ring 204; the ring frame 206 is against the rear opening of the air outlet duct 201, and gaskets are attached to the two sides of the front surface of the ring frame 206; the filter 207 is fixedly installed on the inner wall of the ring frame 206.

[0056] During specific implementation, after the outdoor air outlet structure 1 is installed, the ring frame 206 is first taken out and filled into the screw groove connecting the inner wall of the front opening of the air inlet 102 and the air outlet duct 201. Then the air outlet duct 201 is taken out, the air outlet duct 201 and the air inlet 102 are screwed together, and the ring frame 206 is clamped and fixed. The inhaled outdoor air is filtered to a certain extent through the filter 207, and the air is rotated and agitated by the fan 203. The outdoor air is extracted by the conical air duct 101 and then discharged into the room through the air outlet duct 201 for ventilation.

[0057] Example 2

[0058] On the basis of the first embodiment, in order to supplement the specific locking method of the locking structure 4 when the closed gate 3 is opened, which is not mentioned in the first embodiment, and the specific triggering method of the locking structure 4 to unlock the closed gate 3.

[0059] like Figure 1 、 Figure 2 and Figure 5As shown, in this embodiment, the locking structure 4 includes a crossbeam 401, a T-shaped support 403, a spring seat 405, a fuse 406, a slider 407, a slide 408, a fuse 406, a slider 407 and a slide 408, a clamp 402 is fixedly installed in the middle of the crossbeam 401; T-shaped support 403 is fixedly installed at both ends of the rear surface of the T-shaped support 403, and the two ends of the front side of the T-shaped support 403 are fixedly connected to the return spring 404; the spring seat 405 is fixedly installed at one end of the return spring 404, and the spring seat 405 is fixedly installed at the inner wall of the rear opening of the conical air duct 101; the fuse 406 is fixedly installed at one end of the T-shaped support 403 At both ends of the side edge, the other side of the fuse 406 is fixedly connected to the inner wall of the rear opening of the conical air duct 101; the slider 407 is fixedly installed at the upper and lower ends of the beam 401; the slide groove 408 is opened on the inner wall of the rear opening of the conical air duct 101, and the slide groove 408 and the slider 407 are slidably engaged with each other; the fuse 406 is fixedly installed at both ends of one side edge of the T-shaped support 403, and the other side of the fuse 406 is fixedly connected to the inner wall of the rear opening of the conical air duct 101; the slider 407 is fixedly installed at the upper and lower ends of the beam 401; the slide groove 408 is opened on the inner wall of the rear opening of the conical air duct 101, and the slide groove 408 and the slider 407 are slidably engaged with each other.

[0060] During specific implementation, the two ends of the T-shaped support 403 press the reset spring 404, so that the reset spring 404 is in a compressed state, accumulating elastic potential energy. At the same time, the two sides of the fuse 406 are fixedly connected to the inner wall of the conical air duct 101 and one side of the T-shaped support 403, respectively, to maintain the compressed state of the reset spring 404. At the same time, the clamp 402 and the middle of the rear edges of the two gate plates 302 are clamped with each other for limiting. When exposed to high temperature, the middle part of the fuse 406 quickly melts and deforms, releasing the restriction on the reset spring 404. The crossbeam 401 slides backward under the push of the reset spring 404, so that the clamp 402 and the rear edges of the gate plates 302 are separated from each other, so that the two gate plates 302 are quickly closed.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0062] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A positive pressure ventilation device for a driller's room, characterized in that: include: An air outlet structure (1), the air outlet structure (1) comprising a conical air duct (101); A fan body (2), the fan body (2) being screwed and mounted at the front opening of the air outlet structure (1); A closed gate (3), the closed gate (3) comprising a base rod (301), both ends of the base rod (301) being fixedly connected to the inner wall of the conical air duct (101), gate plates (302) being hinged on both sides of the base rod (301), and tension springs (303) being buckled on both sides of the gate plate (302); A locking structure (4), wherein the front middle portion of the locking structure (4) is engaged with the rear edge of the closed gate (3), and the locking structure (4) is slidably mounted at the rear opening of the conical air duct (101).

2. The positive pressure ventilation device for the driller's room according to claim 1, characterized in that: The tuyere structure (1) further comprises: An air inlet (102), the air inlet (102) being fixedly mounted at the front opening of the conical air duct (101); A first rotating ring (103), the first rotating ring (103) is screwed and installed at the rear edge of the outer wall of the air inlet (102); A mounting flange (104) is fixedly sleeved on the front edge of the outer wall of the first rotating ring (103); A second rotating ring (105), the second rotating ring (105) is screwed and installed at the rear opening of the conical air duct (101); The louver fence (106) is fixedly installed in the inner wall of the second rotating ring (105).

3. The positive pressure ventilation device for the driller's room according to claim 1, characterized in that: The fan body (2) comprises: An air outlet duct (201), wherein the rear opening of the air outlet duct (201) and the inner wall of the front opening of the air inlet (102) are screwed together; A fan frame (202), wherein the fan frame (202) is fixedly mounted on the inner wall of the air outlet duct (201); A fan (203), wherein the motor side surface of the fan (203) is fixedly mounted on the middle part of the fan frame (202); A third rotating ring (204), the third rotating ring (204) is screwed and installed at the front opening of the air outlet duct (201); The air inlet guardrail (205) is fixedly mounted on the inner wall of the third rotating ring (204).

4. The positive pressure ventilation device for the driller's room according to claim 3, characterized in that: The fan body (2) further comprises: A ring frame (206), the ring frame (206) abuts against the rear opening of the air outlet duct (201), and gaskets are attached to both sides of the front surface of the ring frame (206); The filter screen (207) is fixedly mounted on the inner wall of the ring frame (206).

5. The positive pressure ventilation device for a driller's room according to claim 1, characterized in that: The closed gate (3) further comprises: A support seat (304), wherein the support seat (304) is fixedly mounted on the middle portion of the rear surface of the base rod (301); A support beam (305) is fixedly mounted on the rear end of the support seat (304), and two ends of the support beam (305) are mutually buckled with the other end of the tension spring (303).

6. The positive pressure ventilation device for a driller's room according to claim 1, characterized in that: The locking structure (4) comprises: A crossbeam (401), wherein a clamp (402) is fixedly mounted in the middle of the crossbeam (401); A T-shaped support (403), wherein the two ends of the rear surface of the T-shaped support (403) are fixedly mounted with T-shaped support (403), and the two ends of the front side of the T-shaped support (403) are fixedly connected with return springs (404); A spring seat (405), wherein the spring seat (405) is fixedly mounted on one end of the return spring (404), and the spring seat (405) is fixedly mounted on the inner wall of the rear opening of the conical air duct (101); A fuse (406), the fuse (406) being fixedly mounted on both ends of one side edge of the T-shaped support (403), and the other side of the fuse (406) being fixedly connected to the inner wall of the rear opening of the conical air duct (101); Sliders (407), the slides (407) are fixedly mounted on the upper and lower ends of the beam (401); A slide groove (408) is provided on the inner wall of the rear opening of the conical air duct (101), and the slide groove (408) and the slider (407) are slidably engaged with each other.

7. The positive pressure ventilation device for a driller's room according to claim 6, characterized in that: The locking structure (4) further comprises: A fuse (406), the fuse (406) being fixedly mounted on both ends of one side edge of the T-shaped support (403), and the other side of the fuse (406) being fixedly connected to the inner wall of the rear opening of the conical air duct (101); Sliders (407), the slides (407) are fixedly mounted on the upper and lower ends of the beam (401); A slide groove (408) is provided on the inner wall of the rear opening of the conical air duct (101), and the slide groove (408) and the slider (407) are slidably engaged with each other.

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