Fuel oil supply pressure compensation device of thermal medium boiler

Abstract

The utility model provides a thermal medium boiler fuel oil supply pressure compensation device which comprises a pressure compensation tank, a liquid inlet and a liquid outlet are formed in the lower portion of the pressure compensation tank, a backflow port is formed in the upper portion of the pressure compensation tank, a liquid inlet pipe is connected to the liquid inlet, the other end of the liquid inlet pipe is connected to a diesel oil tank, and a first liquid guide pipe is connected to the liquid outlet. A fuel oil pump is connected to the first liquid guide pipe, the other end of the first liquid guide pipe is connected with a second liquid guide pipe and a backflow pipe, the other end of the second liquid guide pipe is connected to the boiler combustion chamber, and the other end of the backflow pipe is connected to the backflow opening. The utility model has the beneficial effects that the pressure compensation tank can ensure the inlet pressure of the fuel oil pump and the small pressure fluctuation of the outlet of the fuel oil pump, thereby ensuring the smooth operation of the boiler; in addition, redundant fuel oil at an outlet of the fuel oil pump enters the pressure compensation tank through the oil return pipe to be reused, and stable operation of the whole fuel oil supply pressure compensation device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of boiler fuel equipment, especially relates to a hot medium boiler fuel oil supply pressure compensation device. BACKGROUND

[0002] The hot medium boiler fuel oil pump inlet provides pressure by the diesel tank liquid level difference, but because of many users, the liquid level difference is small, the fuel oil pump inlet pressure is small and unstable, the outlet pressure fluctuates sharply, the boiler frequently fails to stop, and the system debugging work before trial production cannot be carried out. INVENTION CONTENTS

[0003] Therefore, the utility model aims at overcoming the above-mentioned problems in the prior art, and provides a hot medium boiler fuel oil supply pressure compensation device.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] The hot medium boiler fuel oil supply pressure compensation device comprises a pressure compensation tank, liquid inlets and liquid outlets are arranged at the lower part of the pressure compensation tank respectively, a reflux port is arranged at the upper part of the pressure compensation tank, a liquid inlet pipe is connected at the liquid inlet, the other end of the liquid inlet pipe is connected to a diesel tank, a first liquid guide pipe is connected at the liquid outlet, a fuel oil pump is connected to the first liquid guide pipe, the other end of the first liquid guide pipe is connected with a second liquid guide pipe and a reflux pipe respectively, the other end of the second liquid guide pipe is connected to a boiler combustion chamber, and the other end of the reflux pipe is connected to the reflux port.

[0006] Further, an overflow port is arranged at the upper part of the pressure compensation tank, and an overflow pipe is connected at the overflow port, and the other end of the overflow pipe is connected to the diesel tank.

[0007] Further, a pressure gauge is connected to the top of the pressure compensation tank.

[0008] Further, the bottom of the pressure compensation tank is arranged as an arc surface structure, and a drain port is arranged at the lowest part of the arc surface.

[0009] Further, a plurality of vertically arranged connecting seats are uniformly fixed to the surface of the pressure compensation tank, a fixing block is fixed to the outer side of each connecting seat, the position of the fixing block can be adjusted along the longitudinal direction of the connecting seat, and a support is vertically fixed to the bottom of the fixing block.

[0010] Further, a plurality of groups of longitudinally distributed fixing holes are arranged on the outer side surface of the connecting seat, a counterbore is arranged on the front side of the fixing block, and the fixing block is fixed to the front side of the connecting seat by being fixed to the counterbore and the corresponding group of fixing holes through bolts.

[0011] Further, an installation block is welded to the bottom of each support, and a plurality of installation holes are arranged on each installation block.

[0012] Compared with the prior art, the hot medium boiler fuel oil supply pressure compensation device has the following advantages:

[0013] The hot medium boiler fuel oil supply pressure compensation device has the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application and are incorporated herein for explanation by way of example only. The present application will be described with reference to these drawings, in which:

[0015] Figure 1 The hot medium boiler fuel oil supply pressure compensation device has the following advantages:

[0016] Figure 2 The hot medium boiler fuel oil supply pressure compensation device has the following advantages:

[0017] BRIEF DESCRIPTION OF DRAWINGS

[0018] 1, pressure compensation tank; 101, liquid inlet; 102, liquid outlet; 103, backflow port; 104, overflow port; 105, drain port; 2, liquid inlet pipe; 3, first liquid guide pipe; 4, pressure gauge; 5, backflow pipe; 6, second liquid guide pipe; 7, overflow pipe; 8, connecting seat; 801, fixing hole; 9, fixed block; 901, counterbore; 10, support column; 1001, mounting block. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as the limitation to the utility model. In addition, the term "first", "second" and so on are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0021] In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0022] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0023] As shown in the figure, Figure 1The middle arrow direction represents the fuel oil flow direction, the fuel oil supply pressure compensation device of the heat medium boiler comprises a pressure compensation tank 1, the lower part of the pressure compensation tank 1 is respectively provided with an inlet port 101 and an outlet port 102, and the upper part is provided with a backflow port 103; an inlet pipe 2 is connected to the inlet port 101, the other end of the inlet pipe 2 is connected to a diesel tank; a first liquid guide pipe 3 is connected to the outlet port 102, a fuel oil pump is connected to the first liquid guide pipe 3, and the other end of the first liquid guide pipe 3 is respectively connected with a second liquid guide pipe 6 and a backflow pipe 5; the other end of the second liquid guide pipe 6 is connected to a boiler combustion chamber, and the other end of the backflow pipe 5 is connected to the backflow port 103. In the embodiment, the first liquid guide pipe 3, the second liquid guide pipe 6 and the backflow pipe 5 are connected through a three-way joint. In the embodiment, the fuel oil enters the pressure compensation tank 1 from the diesel tank through the inlet pipe 2; in use, the fuel oil is pressed into the fuel oil pump from the pressure compensation tank 1, and is used in the boiler combustion chamber through the first liquid guide pipe 3 and the second liquid guide pipe 6 at the outlet of the fuel oil pump; the excess fuel oil at the outlet of the fuel oil pump is recovered to the pressure compensation tank 1 through the backflow pipe 5; the pressure compensation tank 1 is arranged, so as to ensure the inlet pressure of the fuel oil pump, and ensure that the outlet pressure fluctuation of the fuel oil pump is small, thereby ensuring the smooth operation of the boiler.

[0024] The upper part of the pressure compensation tank 1 is further provided with an overflow port 104, and an overflow pipe 7 is connected to the overflow port 104; the other end of the overflow pipe 7 is connected to the diesel tank.

[0025] The top of the pressure compensation tank 1 is further connected with a pressure gauge 4.

[0026] The bottom of the pressure compensation tank 1 is arranged as an arc surface structure, and is provided with a discharge port 105 at the lowest part of the arc surface, for emptying the materials in the pressure compensation tank 1; of course, a discharge pipe is installed at the discharge port 105, and a hand valve is arranged on the discharge pipe.

[0027] A plurality of vertically arranged connecting seats 8 are uniformly fixed on the surface of the pressure compensation tank 1; a fixing block 9 is fixed on the outer side of each connecting seat 8, the position of the fixing block 9 can be adjusted along the longitudinal direction of the connecting seat 8, and a support column 10 is vertically fixed on the bottom of the fixing block 9. In the embodiment, the connecting seat 8 is welded and fixed on the pressure compensation tank 1, and the support column 10 is welded and fixed on the fixing block 9.

[0028] A plurality of groups of longitudinally distributed fixing holes 801 are uniformly arranged on the outer side surface of the connecting seat 8; a counterbore 901 is formed on the front side of the fixing block 9; the fixing block 9 is fixed on the front side of the connecting seat 8 by cooperating with the counterbore 901 and a corresponding group of fixing holes 801 through bolts. In the embodiment, each group of fixing holes 801 comprises two fixing holes 801 arranged side by side.

[0029] An installation block 1001 is welded on the bottom of each support column 10, and a plurality of installation holes are arranged on each installation block 1001, for fixing it on the ground by ground nails or bolts.

[0030] In the embodiment, the electromagnetic valves are arranged on the liquid inlet pipe 2, the first liquid guide pipe 3, the second liquid guide pipe 6, the backflow pipe 5 and the overflow pipe 7.

[0031] In the embodiment, the pressure compensation tank 1 is a cavity tank.

[0032] The working process of the embodiment is as follows:

[0033] The fuel oil enters the pressure compensation tank 1 from the diesel tank through the liquid inlet pipe 2. During use, the fuel oil is pressed into the fuel oil pump from the pressure compensation tank 1, and is used in the boiler combustion chamber through the first liquid guide pipe 3 and the second liquid guide pipe 6 at the outlet of the fuel oil pump. The excess fuel oil at the outlet of the fuel oil pump is recovered to the pressure compensation tank 1 through the backflow pipe 5.

[0034] The connecting seat 8 is arranged on the pressure compensation tank 1, and the support 10 capable of adjusting the position longitudinally is connected to the connecting seat 8, that is, the height of the pressure compensation tank 1 can be adjusted in the working condition, so as to meet the installation height of the pressure compensation tank 1 under various working conditions. According to the position of the fuel oil inlet on the combustion chamber, the appropriate height of the pressure compensation tank 1 is selected for installation, so that the pressure compensation tank 1 is close to the position of the fuel oil inlet on the combustion chamber as much as possible, and the pressure change of the fuel oil flowing in the long guide pipe is avoided.

[0035] The above only describes the preferred embodiment of the utility model, and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fuel oil supply pressure compensating device for a heat medium boiler, characterized by: The pressure compensation tank is provided with a liquid inlet, a liquid outlet and a backflow port, and a liquid inlet pipe is connected to the liquid inlet and connected to a diesel tank at the other end.

2. The fuel oil feed pressure compensator for a heat medium boiler according to claim 1, characterized by: The pressure compensation tank is provided with a liquid inlet, a liquid outlet and a backflow port, and a liquid inlet pipe is connected to the liquid inlet and connected to a diesel tank at the other end.

3. The fuel oil feed pressure compensator for a heat medium boiler according to claim 1, characterized by: The pressure compensation tank is provided with a liquid inlet, a liquid outlet and a backflow port, and a liquid inlet pipe is connected to the liquid inlet and connected to a diesel tank at the other end.

4. The heat medium boiler fuel oil supply pressure compensating device according to claim 1, characterized by: The bottom of the pressure compensation tank is provided with an arc surface structure, and a drain port is arranged at the lowest point of the arc surface.

5. The heat medium boiler fuel oil supply pressure compensating device according to claim 1, characterized by: A plurality of vertical connecting seats are uniformly fixed to the surface of the pressure compensation tank, and a fixing block is fixed to the outer side of each connecting seat.

6. The fuel oil feed pressure compensator for a heat medium boiler according to claim 5, characterized by: A plurality of groups of longitudinal fixing holes are uniformly arranged on the outer side surface of the connecting seat, and a counterbore is formed on the front side of the fixing block.

7. The heat medium boiler fuel oil supply pressure compensating device according to claim 5, characterized by: Each support column is welded with a mounting block, and a plurality of mounting holes are arranged on each mounting block.

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