Instrument line purging regulator

Abstract

This invention relates to the field of boiler pressure measurement technology, and in particular to an instrument pipeline purging and regulating device. The receiving mechanism includes a reaction chamber and a product box located at the bottom of the reaction chamber; the collecting mechanism includes a discharge pipe fixedly installed on the inner wall of the reaction chamber, a separation unit torsionally rotatably connected to the outer wall of the discharge pipe, and a mating rod fixedly connected to one side of the separation unit; the regulating mechanism includes a toothed ring fixedly installed on the other side of the separation unit, a locking platform fixedly installed on the outer wall of the discharge pipe, and an unlocking unit located on one side of the locking platform. This invention allows for flow restriction of airflow in the default state without additional operation, and can automatically adjust and increase the airflow according to the product accumulation and caking situation to ensure effective cleaning of caking products. After cleaning, it automatically restores the normal flow rate to meet the needs of existing boiler pressure measurement environments.

Description

Technical Field

[0001] This invention relates to the field of boiler pressure measurement technology, and in particular to an instrument pipeline purging and adjustment device. Background Technology

[0002] During boiler pressure measurement, factors such as operating condition adjustments can cause pulverized coal and combustion byproducts to accumulate at the sampling device. Inaccurate monitoring of measurement points by operators can lead to deviations, hindering the adjustment and monitoring of boiler combustion. The current conventional approach involves installing a 0.8 MPa air compressor at the end of the sampling pipeline, connecting one end to a flexible hose via a quick-connect coupling. When the pressure changes slowly, compressed air is manually connected to the sampling pipe end for pipeline purging. While this method can address some product accumulation, it cannot effectively control the amount of compressed air discharged. Excessive compressed air flow can also affect the pressure measurement. Furthermore, some pulverized coal in boiler pipelines is not simply accumulated; in severe cases, it can form clumps, rendering conventional purging ineffective and requiring increased power. During this process, operators must continuously monitor the values ​​and adjust the compressor power, repeating the cycle repeatedly – ​​a cumbersome and inefficient process.

[0003] Therefore, there is a need for an instrument pipeline purging and regulating device that can limit the air flow in the default state without additional operation, adjust and increase the air flow according to the product accumulation and caking situation to ensure that the caking products are effectively cleaned, and automatically restore the normal flow rate after cleaning to meet the needs of the existing boiler pressure measurement environment. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Given the existing technology, the conventional method for dealing with the accumulation of pulverized coal and combustion products is to install an air compressor with a pressure of 0.8 MPa at the end of the sampling pipeline. However, this method cannot effectively control the amount of compressed air discharged. If the compressed air discharge flow rate is continuously too high, it will affect the readings of the pressure measuring points. Conventional purging is not effective for agglomeration and requires increased power. During this period, staff need to continuously observe the values ​​and adjust the compressor power, repeating the process repeatedly. This process is cumbersome and inefficient.

[0006] Therefore, the technical problem to be solved by the present invention is to design an instrument pipeline purging and regulating device that can limit the air flow in the default state, adjust and increase the air flow according to the product accumulation and caking situation, ensure that the caking products are effectively cleaned, and automatically restore the normal flow after cleaning to meet the needs of the existing boiler pressure measurement environment.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an instrument pipeline purging and adjusting device, comprising,

[0008] The receiving mechanism includes a sampling pipeline, an induction sleeve located on one side of the sampling pipeline, and a gas guide sleeve installed at the other end of the induction sleeve;

[0009] The triggering mechanism includes a rebound airtight block disposed on the side wall of the sensing sleeve, a pneumatic assembly located at the end of the rebound airtight block, and an activation end disposed on the inner wall of the sensing sleeve.

[0010] And an adjustment mechanism, including a shielding plate rotatably disposed with the end of the starting head and a current-limiting plate located on one side of the shielding plate.

[0011] As an improvement of the present invention, an inlet groove is fixedly provided inside the sampling pipeline, a docking hole is fixedly provided around the inlet groove, a pressure groove is provided on one side of the sensing sleeve, the pressure groove corresponds to the docking hole, and a magnetic end is fixedly provided at the front end of the sensing sleeve.

[0012] As an improvement of the present invention, an elastic telescopic rod is fixedly provided at the end of the air pressure groove, and the other end of the elastic telescopic rod is fixedly connected to the rebound airtight block. A sliding groove is provided on the inner wall of the sensing sleeve, and the air pressure groove is located above the sliding groove.

[0013] As an improvement of the present invention, a pushing air chamber is fixedly provided at the end of the slide groove, the bottom of the air pressure groove is connected through the pushing air chamber, a push rod is elastically provided on one side of the pushing air chamber, a movable bracket is provided inside the sensing sleeve, the movable bracket slides along the slide groove, and one side of the movable bracket is fixedly connected to the push rod.

[0014] As an improvement of the present invention, the starting end is fixedly disposed at the center of the movable support, a flow guide sleeve is fixedly sleeved on the outer wall of the starting end, a limit rod is fixedly disposed at the center of the starting end, a tension spring is fixedly disposed at the end of the limit rod, an electrode plate is slidably disposed on the outer wall of the limit rod, and one side of the electrode plate is fixedly connected to the tension spring.

[0015] As an improvement of the present invention, a rotating cavity is formed between the flow restrictor and the air guide sleeve, the shielding plate rotates along the rotating cavity, and air guide holes are formed on the surface of the flow restrictor.

[0016] As an improvement of the present invention, an extension rod is fixedly provided on the top of the shielding plate, and an extension sleeve is fixedly provided at the end of the starting end. The extension rod extends into the extension sleeve and can rotate along the inner wall of the extension sleeve. The extension rod is electrically connected to the starting end.

[0017] As an improvement of the present invention, an opening is provided on one side of the shielding plate, and a protrusion is fixedly provided on the side wall of the shielding plate, and the protrusion rotates along the rotating cavity.

[0018] As an improvement of the present invention, an indicator unit is fixedly provided on the side wall of the air guide sleeve, an indicator light is fixedly provided on the surface of the indicator unit, and a trigger end is fixedly provided on the inner wall of the indicator unit, and the trigger end is electrically connected to the indicator light.

[0019] As an improvement of the present invention, the indicating unit is connected through to the top of the rotating cavity, a spring block is slidably disposed on the top of the rotating cavity, one side of the spring block is elastically connected to the inner wall of the indicating unit, and a trigger piece is fixedly disposed on the side of the spring block facing the trigger end.

[0020] The beneficial effects of this invention are as follows: it can limit the air flow without additional operation, and can automatically adjust and increase the air flow according to the product accumulation and caking situation to ensure that the caking products are effectively cleaned. After the cleaning is completed, it can automatically restore the normal flow rate of the instrument pipeline purging and adjustment device to meet the needs of the existing boiler pressure measurement environment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the instrument pipeline purging and adjustment device in this invention.

[0023] Figure 2 This is a schematic diagram of the instrument pipeline purging and adjustment device after the front baffle is hidden.

[0024] Figure 3 This is a schematic diagram of the back structure of the instrument pipeline purging and adjustment device in this invention.

[0025] Figure 4 This is a schematic diagram of the default state of the internal structure of the instrument pipeline purging and adjustment device in this invention.

[0026] Figure 5This is a schematic diagram of the state of nano-carbon collected inside the instrument pipeline purging and regulating device in this invention.

[0027] Figure 6 This is a three-dimensional schematic diagram of the internal structure of the instrument pipeline purging and adjustment device in this invention.

[0028] Figure 7 This is a schematic diagram of the peripheral structure of the instrument pipeline purging and regulating device separation unit in this invention.

[0029] Figure 8 This is a schematic diagram of the peripheral structure of the instrument pipeline purging and regulating device separation unit from another angle in this invention.

[0030] Figure 9 This is a plan view of the internal structure of the instrument pipeline purging and adjustment device in this invention. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] Reference Figures 1-5 This embodiment provides an instrument pipeline purging and adjustment device.

[0034] The receiving mechanism 100 serves to contain and protect the sample. The sampling pipeline 101 is used to test the boiler pressure measuring point. The induction sleeve 102 and the air guide sleeve 103 fixed to the other end of the induction sleeve 102 are both connected to the end of the sampling pipeline 101 by plugging. A strong magnetic attraction surface is provided on the side of the induction sleeve 102 facing the sampling pipeline 101. The installation method of the magnetic attraction surface is not limited, as long as it ensures that the induction sleeve 102 and the sampling pipeline 101 fit tightly. The air guide sleeve 103 is fixedly set at the other end of the induction sleeve 102 and can be connected to an air compressor through a flexible hose or other transmission container to deliver compressed air.

[0035] The triggering mechanism 200 is disposed inside the sensing sleeve 102. Three spring-loaded airtight blocks 201 are elastically disposed on the side of the sensing sleeve 102 facing the sampling pipeline 101. The spring-loaded airtight blocks 201 extend out of the sensing sleeve 102 in the default state. The sampling pipeline 101 also has a fixed docking hole 101a-1 corresponding to the spring-loaded airtight block 201 on the side facing the sensing sleeve 102, which facilitates the insertion of the spring-loaded airtight block 201. The docking hole 101a-1 is shallow, only needing to accommodate the front end of the spring-loaded airtight block 201, without completely inserting the spring-loaded airtight block 201.

[0036] After the spring-loaded airtight block 201 is inserted into the docking hole 101a-1, the docking hole 101a-1 quickly becomes too shallow to accommodate the spring-loaded airtight block 201. The spring-loaded airtight block 201 is then pressed against the inner wall of the docking hole 101a-1 and moves in the opposite direction. The spring-loaded airtight block 201 is in contact with the sensing sleeve 102. During its reverse movement, the spring-loaded airtight block 201 regulates the air pressure inside the sensing sleeve 102. The air pressure assembly is fixedly located at the end of the spring-loaded airtight block 201, and the air pressure regulation by the spring-loaded airtight block 201 directly affects the operation of the air pressure assembly.

[0037] The pneumatic assembly is located below the rebound airtight block 201. A slide rail is provided on the other side of the pneumatic assembly, and an activation end 203 is slidably mounted on the slide rail. The end of the activation end 203 is connected to the pneumatic assembly. When the sampling tube 101 and the sensing sleeve 102 are tightly attached and fixed, the retraction of the rebound airtight block 201 can drive the pneumatic assembly to move through the air pressure, pushing the activation end 203 to move horizontally. After the activation end 203 moves, it extends into the sampling tube 101.

[0038] After the start-up end 203 enters the sampling pipeline 101, it can react to the airflow in the sampling pipeline 101. Under normal circumstances, the airflow entering the sampling pipeline 101 through the gas guide sleeve 103 can quickly deal with ordinary product accumulation. At this time, the start-up end 203 will not be triggered. However, once the product accumulation at the measuring point is more serious or even hardened and caking occurs, the airflow that normally enters the sampling pipeline 101 cannot quickly clear the product. At this time, the airflow will be blocked by the product and generate backflow. The backflowing airflow will activate the start-up end 203.

[0039] The regulating mechanism 300 is used to regulate the flow rate of compressed air delivered by the air compressor. By default, the airflow is not large, as excessive airflow would affect the readings at the pressure measuring points. A baffle 301 is rotatably mounted at the end of the starting head 203. The baffle 301 and the starting head 203 are electrically connected. When the starting head 203 starts, it drives the baffle 301 to rotate. A flow-limiting plate 302 is located on the other side of the baffle 301 and fits against it. The surface of the flow-limiting plate 302 has through holes of different sizes. The baffle 301 has corresponding openings to align with the through holes of different sizes on the surface of the flow-limiting plate 302, thereby regulating the flow rate of the compressed air. The increased flow rate of the compressed air, under continuous input, can thoroughly clean away any residue. After cleaning, the airflow is no longer affected by residue and will not flow back. The starting head 203 stops moving, the baffle 301 returns to its original position, and the flow rate of the compressed air returns to normal.

[0040] Example 2

[0041] Reference Figures 1-7This embodiment is based on the previous embodiment, and differs from the previous embodiment in that:

[0042] An inlet groove 101a is fixedly provided inside the sampling tube 101, and in Embodiment 1, the starting end 203 finally enters the inlet groove 101a. A pressure groove 204 is provided on one side of the sensing sleeve 102, corresponding to the docking hole 101a-1. A rebound airtight block 201 is provided on the inner wall of the pressure groove 204, and a magnetic suction end 102a is fixedly provided at the front end of the sensing sleeve 102. The magnetic suction end 102a can provide strong attraction to adhere to the sampling tube 101, ensuring a stable connection between the sensing sleeve 102 and the sampling tube 101 while also making separation easy.

[0043] An elastic telescopic rod 204a is fixedly installed at the bottom end of the air pressure groove 204, and the other end of the elastic telescopic rod 204a is fixedly connected to the rebound airtight block 201. The attraction force of the magnetic end 102a is greater than the elastic force of the elastic telescopic rod 204a. When the induction sleeve 102 and the sampling pipeline 101 are connected, the rebound airtight block 201 will compress the elastic telescopic rod 204a and adjust the air pressure in the air pressure groove 204.

[0044] A groove 102b is fixedly formed on the inner wall of the sensing sleeve 102. The groove 102b is located below the air pressure groove 204. A pushing air chamber 205 is fixedly provided at the end of the groove 102b. The top of the pushing air chamber 205 is connected to the bottom of the air pressure groove 204. When the rebound airtight block 201 moves inward along the air pressure groove 204, the air pressure is adjusted and input into the pushing air chamber 205. A push rod 205a is elastically provided on one side of the pushing air chamber 205. When air pressure is input into the pushing air chamber 205, it can drive the push rod 205a to extend.

[0045] A movable bracket 104 is provided inside the sensing sleeve 102. The movable bracket 104 can slide along the slide groove 102b. One side of the movable bracket 104 is fixedly connected to the push rod 205a. When the push rod 205a extends during the movement of the rebound airtight block 201 along the air pressure groove 204, it can drive the movable bracket 104 to move together. A starting end 203 is fixedly provided at the center of the movable bracket 104, and a guide sleeve 203a is provided on the outer wall of the starting end 203. A limiting rod 203b is fixedly provided at the center of the starting end 203, and a tension spring 203b-1 is fixedly provided at the end of the limiting rod 203b. An electrode 203b-2 is slidably provided on the outer wall of the limiting rod 203b, and one side of the electrode 203b-2 is fixedly connected to the tension spring 203b-1.

[0046] Electrode 203b-2 and starting end 203 are electrically connected by contact. The spring 203b-1 has a very low elastic modulus, and electrode 203b-2 is very lightweight. Spring 203b-1 ensures electrode 203b-2 has a reset function. When product accumulation at the measurement point is severe or even hardened, the airflow entering the sampling line 101 cannot quickly clear the product. In this case, the airflow will backflow due to the obstruction of the product, pushing electrode 203b-2 towards and into contact with the starting end 203. During this period, the air compressor at the other end of the air guide sleeve 103 continuously inputs compressed air, and the guide sleeve 203a prevents the movement of electrode 203b-2 from being interfered with by the forward airflow.

[0047] The starting end 203 and the baffle plate 301 are electrically connected. Opening the starting end 203 causes the baffle plate 301 to rotate slightly. After the electrode plate 203b-2 contacts the starting end 203, the baffle plate 301 rotates slightly. The flow restrictor 302 is located on the other side of the baffle plate 301 and fits against it. The surface of the flow restrictor 302 has through holes of different sizes. The baffle plate 301 has corresponding openings 301b to align with the air guide holes 302a of different sizes on the surface of the flow restrictor 302, thereby adjusting the flow rate of compressed air. The increased flow rate of compressed air, under continuous input, can thoroughly clean the product. After cleaning, the airflow will no longer be affected by the product and will not flow back. The electrode plate 203b-2 and the starting end 203 will no longer be in contact. The electrical connection between electrode 203b-2 and start-up terminal 203 can be set to reset the baffle plate 301 after XX seconds of disconnection. Similarly, the operation of the baffle plate 301 can also adopt this logic principle, which ensures the stability of the movement of the baffle plate 301. Finally, the baffle plate 301 returns the airflow to normal.

[0048] Example 3

[0049] Reference Figures 1-9 This embodiment is based on the previous embodiment, and differs from the previous embodiment in that:

[0050] The flow restrictor 302 and the air guide sleeve 103 form a rotating cavity 304. The baffle 301 is located inside the rotating cavity 304 and can rotate along the rotating cavity 304 under the drive of the starting end 203. An air guide hole 302a is fixedly opened on the surface of the flow restrictor 302 to correspond to an opening 301b provided on one side of the baffle 301. As the opening 301b rotates with the baffle 301, it will contact air guide holes 302a of different sizes, thereby regulating the flow rate of compressed air.

[0051] An extension rod 301a is fixedly mounted on the top of the shielding plate 301, and an extension sleeve 203c is fixedly mounted on the end of the starting end 203 to engage with the extension rod 301a. The extension rod 301a extends into the extension sleeve 203c and can rotate along the inner wall of the extension sleeve 203c. The extension rod 301a is electrically connected to the starting end 203, thereby driving the shielding plate 301 to rotate. A protrusion 301c is fixedly mounted on the side wall of the shielding plate 301, and the protrusion 301c can rotate along the rotating cavity 304 following the rotation of the shielding plate 301.

[0052] An indicator unit 305 is fixedly installed on the side wall of the air guide sleeve 103. An indicator light 305a is fixedly installed on the surface of the indicator unit 305. A trigger end 305b is fixedly installed on the inner wall of the indicator unit 305 and is electrically connected to the indicator light 305a. A spring block 304b is slidably installed on the top of the rotating cavity 304. One side of the spring block 304b is elastically connected to the inner wall of the indicator unit 305. A trigger piece 304b-1 is fixedly installed on the side of the spring block 304b facing the trigger end 305b.

[0053] When the baffle plate 301 rotates along the rotating cavity 304 under the drive of the starting end 203, the flow rate of compressed air increases. At this time, the protrusion 301c also rotates along the rotating cavity 304 along with the baffle plate 301 and contacts the inclined surface of the spring block 304b, thereby pushing the spring block 304b to move horizontally. The trigger plate 304b-1 contacts the trigger end 305b, and then the indicator light 305a is activated. After the indicator light 305a is activated, it can indicate to the operator that the baffle plate 301 has started to move and the flow rate of compressed air is increasing. The operator can easily monitor the movement status of the purging adjustment device through the indicator light 305a.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An instrument pipeline purging and regulating device, characterized in that: include, The receiving mechanism (100) includes a sampling pipeline (101), a sensing sleeve (102) located on one side of the sampling pipeline (101), and a gas guide sleeve (103) installed at the other end of the sensing sleeve (102). The triggering mechanism (200) includes a rebound airtight block (201) disposed on the side wall of the sensing sleeve (102), a pneumatic assembly located at the end of the rebound airtight block (201), and an activation end (203) disposed on the inner wall of the sensing sleeve (102). And an adjustment mechanism (300), including a shield (301) rotatably disposed with respect to the end of the start end (203) and a flow restrictor (302) located on one side of the shield (301). The sampling pipeline (101) has an inlet groove (101a) fixedly opened inside, and a docking hole (101a-1) is fixedly opened around the inlet groove (101a). A pressure groove (204) is opened on one side of the sensing sleeve (102), and the pressure groove (204) corresponds to the docking hole (101a-1). A magnetic end (102a) is fixedly provided at the front end of the sensing sleeve (102). The flow restrictor (302) and the air guide sleeve (103) form a rotating cavity (304), the shield (301) rotates along the rotating cavity (304), and the surface of the flow restrictor (302) is provided with an air guide hole (302a).

2. The instrument pipeline purging and regulating device according to claim 1, characterized in that: An elastic telescopic rod (204a) is fixedly installed at the end of the air pressure groove (204), and the other end of the elastic telescopic rod (204a) is fixedly connected to the rebound airtight block (201). A sliding groove (102b) is opened on the inner wall of the sensing sleeve (102), and the air pressure groove (204) is located above the sliding groove (102b).

3. The instrument pipeline purging and regulating device according to claim 2, characterized in that: A pushing air chamber (205) is fixedly provided at the end of the slide groove (102b). The bottom of the air pressure groove (204) is connected to the pushing air chamber (205). A push rod (205a) is elastically provided on one side of the pushing air chamber (205). A movable bracket (104) is provided inside the sensing sleeve (102). The movable bracket (104) slides along the slide groove (102b). One side of the movable bracket (104) is fixedly connected to the push rod (205a).

4. The instrument pipeline purging and regulating device according to claim 3, characterized in that: The starting end (203) is fixedly installed at the center of the movable bracket (104). A guide sleeve (203a) is fixedly sleeved on the outer wall of the starting end (203). A limit rod (203b) is fixedly installed at the center of the starting end (203). A tension spring (203b-1) is fixedly installed at the end of the limit rod (203b). An electrode plate (203b-2) is slidably installed on the outer wall of the limit rod (203b). One side of the electrode plate (203b-2) is fixedly connected to the tension spring (203b-1).

5. The instrument pipeline purging and regulating device according to claim 4, characterized in that: An extension rod (301a) is fixedly provided on the top of the shielding plate (301), and an extension sleeve (203c) is fixedly provided at the end of the starting end (203). The extension rod (301a) extends into the extension sleeve (203c) and can rotate along the inner wall of the extension sleeve (203c). The extension rod (301a) is electrically connected to the starting end (203).

6. The instrument pipeline purging and regulating device according to claim 5, characterized in that: An opening (301b) is provided on one side of the shielding plate (301), and a protrusion (301c) is fixedly provided on the side wall of the shielding plate (301). The protrusion (301c) rotates along the rotating cavity (304).

7. The instrument pipeline purging and regulating device according to claim 6, characterized in that: An indicator unit (305) is fixedly provided on the side wall of the air guide sleeve (103). An indicator light (305a) is fixedly provided on the surface of the indicator unit (305). A trigger end (305b) is fixedly provided on the inner wall of the indicator unit (305). The trigger end (305b) is electrically connected to the indicator light (305a).

8. The instrument pipeline purging and regulating device according to claim 7, characterized in that: The indicator unit (305) is connected through to the top of the rotating cavity (304). A spring block (304b) is slidably disposed on the top of the rotating cavity (304). One side of the spring block (304b) is elastically connected to the inner wall of the indicator unit (305). A trigger piece (304b-1) is fixedly disposed on the side of the spring block (304b) facing the trigger end (305b).

Images